sample report for storage tank shell structural profile ... · iso 7507 / api mpms – manual of...

Sample Report for Storage TankShell Structural Profile & Bottom Profile Survey

CONTROLLED COPY? YES

CIRCULATION · IET ADMINISTRATION &CLIENT

DOCUMENT REFERENCE Report No : IET-16--17/000 Rev 00

PREPARED MOHAMED RAUB

APPROVED SANJAY BOSE

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DOCUMENT REFERENCE

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EPORTSample Report for Storage Tank

REPORTSample Report for Storage TankShell Structural Profile & Bottom Profile Survey

REPORTShell Structural Profile & Bottom Profile Survey

REPORT

REPORT

TANK NO SAMPLE TANK SURVEY REPORT

CONTENTS

1. Execution Summary

2. Person To Contact

3. Applicable Codes, Standard, Specification

4. Abbreviation

5. Tank Description

6. Shell Roundness Survey Evaluation

7. Tank Verticality Evaluation

8. Tank Shell Settlement Evaluation

9. Tank Bottom Floor Profile from Centre (Cone UP)

10. Evaluation Summary

Report No : IET-16--17/000 Rev 00 November 2016Page 1 of 43

SAMPLE Tank Shell Settlement Evaluation

SAMPLE Tank Shell Settlement Evaluation

Tank Bottom Floor Profile from Centre (Cone UP)

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Tank Bottom Floor Profile from Centre (Cone UP)

Evaluation Summary

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Evaluation Summary

REPORT


1. Execution Summary Survey had to be carried out on (Tank no); vertical Butt welded mild steel cylindrical tank, with a floating roof.

On behalf of our end client, (Company Name) we have performed a survey of the tank to provide data to assist in determining the compliance of tank with API Standard 653, Appendix B Shell Settlement specifications and Roundness.

The engineers who performed the onsite survey on (Date) were Mr. Sanjay Bose & Mr. Mohamed Raub.

This report should be read in conjunction with API 653 Appendix B.

The API 653, Appendix B standard allows the operator to interpret settlement data, particularly the determination of floor edge settlement break-over points and the nomination of statistical outlying data for shell settlement in determination of the plane of rigid tilt and the tank shell deflection.

We have exercised such judgment in good faith and provide illustrations of our working in this report; and we have processed the data for the convenience of engineering personnel assessing the tank against the API 653B standard. The ultimate responsibility therefore lies with the engineers in accepting the information in this report and its suitability for deciding upon the condition of the tank consequently, we are receptive to any requests from our client to re-process the tank data in accordance with their differing interpretation of the API 653B standard.

The Standard acknowledges that the tank’s previous service history may be considered in evaluating many of the aspects of settlement.

We cannot comment whether the apparent settlement of the tank represents the as-built condition or is settlement since construction. The API 653 settlement specifications assume the current condition to have developed from a purely symmetrical tank, and as such should be viewed as a worst-case evaluation.

Other than by the methods described in API Standard 653 Appendix B, we do not attempt to calculate the tank shell stresses that may be generated by tank settlement.


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2. Person To Contact CLIENT:

CONTRACTOR: Global Remote E | [email protected] E | [email protected] E | [email protected] E | [email protected] E | [email protected] E | [email protected] E | [email protected] E | [email protected] Person to Contact: Mr. Sanjay Bose Technical In-charge | Tank Survey & Calibration Division T: +974 3347 1069 / +91 84201 27554 E: [email protected]


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3. Applicable Codes, Standards, Specification

1. API – 653 Tank Inspection, Repair, Alteration and Reconstruction – 5th

Edition 2014

2. API 653, Annex B – Evaluation of Tank Bottom Settlement – 5th Edition

2014

3. ISO 7507 / API MPMS – Manual of Petroleum Measurement Standards.

4. MECHANICAL DATA Sheets’ (As Built)

4. Abbreviation

API – American Petroleum Institute

ISO – International Standard Organization

Smax - Permissible out-of-plane settlement

L - Arc length between measurement points

Y - Yield strength of the shell material

E - Young’s Modulus

H - Tank height

M - Meters

mm – Millimeters


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5. Tank Description Client : Location : Tank Number : Material of Construction :Mild Steel Number of Shell Courses :Eight (08) Method of Construction :Welding Product Storage :Crude Oil Service :Off-Stream Type of Roof :Floating Roof Evaluation Code :API 653 Edition-2014 Evaluation Carried out by :Mr. Sanjay Bose – Surveyor Date of Survey :18 -19.05.2016 Inspection/Survey Carried out :Tank Shell Settlement Tank out-of roundness survey. Tank Verticality. Values Considered for evaluation :Height: 21.921 M Diameter: 92.000 M Arc Length (L): 9.639 M Yield Strength (Y): 30000 Young’s Modulus (E): 29000000


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Crude OilREPORT

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1 45.966 9 45.97 17 45.972 25 45.9742 45.963 10 45.958 18 45.968 26 45.9683 45.978 11 45.963 19 45.959 27 45.9564 45.969 12 45.969 20 45.955 28 45.975 45.955 13 45.959 21 45.966 29 45.9646 45.957 14 45.969 22 45.967 30 45.9597 45.963 15 45.967 23 45.968 45.972 16 45.963 24 45.987

StationRadius to

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6. Shell Roundness Survey Evaluation A survey of tank shell was performed in accordance with API, to obtain verticality data at two heights of each strake (measured with optical equipment along 30 vertical stations around the tank exterior) and a tank reference circumference corresponding with the strake 1 upper section verticality reading.

To provide a report on the roundness of the tank shell, we have also determined the internal radii at each measurement station at 500 millimeters above the base of the tank shell.

The internal radii are derived from laser ranging (offset) measurements taken outside from the tank from a fixed point to each station around the lower section of 1st Course. These readings are adjusted using the tank shell verticality measurements to give an equivalent reading at 500 millimeters above the tank base. The tank centroid is computed from the adjusted offsets and the radius between the centroid and each measurement station calculated, as reported in the table below.

Radii at 500 mm above tank base

The maximum radius variation at 500 millimeters above the base of the tank shell is -25 millimeters


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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30Deviation from the Average Radius -14 -17 -2 -11 -25 -23 -17 -8 -10 -22 -17 -11 -21 -11 -13 -17 -8 -12 -21 -25 -14 -13 -20 7 -6 -12 -24 -10 -16 -21

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Following are the deviations between the reference radius and the radius at each individual station:

The tolerances given in API 653 Table 10.2 the max Permissible value for Radii measured at 1 ft. above the shell-to-bottomweld shall not exceed +31.75 mm (Tank Diameter (Feet) >250).

Radius tolerances measured higher than one foot above the shell-to-bottom weld the max Permissible Radius tolerancesvalue will be three times the tolerances given in API 653 Table 10.2 which we mentioned before.


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* Top = 80%, Bott = 20%

Internal Offsets corrected for plate thickness - millimetres Negative value = Tank Set IN

1 2 3 4 5 6 7 8Course Thk (m)1 - top ** 0.0430 0 0 0 0 0 0 0 01 - bott 0.0430 -14 -17 -2 -11 -25 -23 -17 -82 - top 0.0400 -5 -6 -12 0 -13 -10 -20 -32 - bott 0.0400 2 1 -3 3 -1 1 -4 03 - top 0.0318 -2 16 1 -12 -25 9 4 143 - bott 0.0318 -5 -1 -11 -2 -18 -5 -14 14 - top 0.0263 9 31 -5 -22 -2 18 9 124 - bott 0.0263 3 30 6 -12 -18 8 9 215 - top 0.0210 12 30 -10 -20 -7 12 6 95 - bott 0.0210 12 30 -9 -20 0 21 13 -516 - top 0.0157 5 39 -16 -45 -11 17 12 146 - bott 0.0157 8 32 -14 -28 -8 14 4 107 - top 0.0131 23 47 -25 -51 3 24 7 17 - bott 0.0131 8 33 -29 -52 -16 10 -2 38 - top 0.0124 16 43 -38 -58 2 22 -10 -88 - bott 0.0124 22 46 -30 -56 6 30 -3 -179 - top 0.0000 0 0 0 0 0 0 0 09 - bott 0.0000 0 0 0 0 0 0 0 010 - top 0.0000 0 0 0 0 0 0 0 010 - bott 0.0000 0 0 0 0 0 0 0 0

9 10 11 12 13 14 15 16Course Thk (m)1 - top ** 0.0430 0 0 0 0 0 0 0 01 - bott 0.0430 -10 -22 -17 -11 -21 -11 -13 -172 - top 0.0400 2 -5 -6 -22 -5 -1 3 -22 - bott 0.0400 4 1 -1 -7 1 -1 4 83 - top 0.0318 5 -12 5 -16 2 -3 -6 33 - bott 0.0318 10 2 0 -23 -2 1 3 24 - top 0.0263 6 4 14 -26 -6 -13 -11 64 - bott 0.0263 9 -5 11 -21 2 -5 -10 35 - top 0.0210 7 12 10 -26 -10 -20 -25 -35 - bott 0.0210 4 7 16 -27 -13 -21 -14 76 - top 0.0157 19 11 7 -4 -1 -4 -21 -66 - bott 0.0157 19 17 5 -17 -4 -9 -20 37 - top 0.0131 17 17 7 11 -4 -17 -27 -157 - bott 0.0131 13 -6 -4 -1 -14 -11 -32 -178 - top 0.0124 19 3 -8 60 -22 -24 -35 -188 - bott 0.0124 19 17 -3 8 -19 -17 -29 -169 - top 0.0000 0 0 0 0 0 0 0 09 - bott 0.0000 0 0 0 0 0 0 0 010 - top 0.0000 0 0 0 0 0 0 0 010 - bott 0.0000 0 0 0 0 0 0 0 0

MAXIMUM OFFSET SET IN = -58 MMMINIMUM OFFSET SET OUT = 60 MMCORRECTED EXTERNAL CIRCUMFERENCE AT REFERENCE COURSE 1 = 289.172 MCORRECTED INTERNAL DIAMETER AT REFERENCE COURSE 1 = 91.9603 MINTERNAL RADIUS = 45.98 M at reference course 1 top position 30% from top weld

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* Top = 80%, Bott = 20%

Internal Offsets corrected for plate thickness - millimetres Negative value = Tank Set IN

17 18 19 20 21 22 23 24Course Thk (m)1 - top ** 0.0000 0 0 0 0 0 0 0 01 - bott 0.0000 -8 -12 -21 -25 -14 -13 -20 72 - top 0.0000 -11 8 18 6 10 -14 -3 -222 - bott 0.0000 0 6 8 6 2 -3 3 -113 - top 0.0000 18 23 38 4 3 7 11 -153 - bott 0.0000 5 13 28 7 -1 -13 -1 -104 - top 0.0000 20 28 41 24 29 2 -7 -184 - bott 0.0000 24 29 44 10 12 13 14 -145 - top 0.0000 14 35 57 20 24 -3 -14 -145 - bott 0.0000 17 28 43 25 29 0 -10 -196 - top 0.0000 34 53 59 14 20 6 -20 -226 - bott 0.0000 23 46 63 21 24 -5 -19 -137 - top 0.0000 23 54 56 31 13 3 -38 -317 - bott 0.0000 28 50 51 6 6 -1 -36 -348 - top 0.0000 17 58 49 14 10 -14 -59 -408 - bott 0.0000 20 57 56 32 15 -5 -48 -389 - top 0.0000 0 0 0 0 0 0 0 09 - bott 0.0000 0 0 0 0 0 0 0 010 - top 0.0000 0 0 0 0 0 0 0 010 - bott 0.0000 0 0 0 0 0 0 0 0

25 26 27 28 29 30 31 32Course Thk (m)1 - top ** 0.0000 0 0 0 0 0 0 0 01 - bott 0.0000 -6 -12 -24 -10 -16 -21 0 02 - top 0.0000 2 -3 12 -4 11 12 0 02 - bott 0.0000 -1 2 3 3 3 8 0 03 - top 0.0000 13 20 42 34 12 2 0 03 - bott 0.0000 11 6 8 33 15 12 0 04 - top 0.0000 10 22 43 35 16 8 0 04 - bott 0.0000 14 25 49 39 14 6 0 05 - top 0.0000 -1 14 32 36 27 4 0 05 - bott 0.0000 8 19 42 34 18 6 0 06 - top 0.0000 -19 19 32 42 20 -7 0 06 - bott 0.0000 -10 14 30 39 29 6 0 07 - top 0.0000 -23 18 15 28 20 7 0 07 - bott 0.0000 -30 10 20 31 15 -20 0 08 - top 0.0000 -30 11 -1 10 17 -5 0 08 - bott 0.0000 -28 15 7 19 20 0 0 09 - top 0.0000 0 0 0 0 0 0 0 09 - bott 0.0000 0 0 0 0 0 0 0 010 - top 0.0000 0 0 0 0 0 0 0 010 - bott 0.0000 0 0 0 0 0 0 0 0

MAXIMUM OFFSET SET IN = -59 MMMINIMUM OFFSET SET OUT = 63 MMCORRECTED EXTERNAL CIRCUMFERENCE AT REFERENCE COURSE 1 = 289.172 MCORRECTED INTERNAL DIAMETER AT REFERENCE COURSE 1 = 91.9603 MINTERNAL RADIUS = 45.98 M

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Opposing station internal offsets - Calculated internal diameter - metres

1 & 16 2 & 17 3 & 18 4 & 19 5 & 20 6 & 21 7 & 22 8 & 23Course1 - top ** 91.960 91.960 91.960 91.960 91.960 91.960 91.960 91.9601 - bott 91.929 91.935 91.946 91.928 91.910 91.923 91.930 91.9322 - top 91.953 91.943 91.956 91.978 91.953 91.960 91.926 91.9542 - bott 91.970 91.961 91.963 91.971 91.965 91.963 91.953 91.9633 - top 91.962 91.995 91.985 91.987 91.940 91.973 91.972 91.9863 - bott 91.958 91.965 91.963 91.987 91.950 91.955 91.934 91.9614 - top 91.975 92.011 91.983 91.979 91.982 92.007 91.971 91.9654 - bott 91.966 92.014 91.995 91.992 91.952 91.980 91.982 91.9955 - top 91.969 92.004 91.985 91.997 91.973 91.996 91.963 91.9555 - bott 91.979 92.007 91.979 91.983 91.985 92.010 91.973 91.8996 - top 91.960 92.034 91.998 91.975 91.964 91.998 91.979 91.9556 - bott 91.972 92.016 91.993 91.996 91.974 91.999 91.960 91.9527 - top 91.968 92.030 91.989 91.965 91.994 91.997 91.970 91.9237 - bott 91.951 92.021 91.981 91.959 91.950 91.976 91.957 91.9278 - top 91.958 92.020 91.980 91.951 91.976 91.992 91.936 91.8938 - bott 91.966 92.026 91.987 91.960 91.998 92.005 91.952 91.8959 - top 91.960 91.960 91.960 91.960 91.960 91.960 91.960 91.9609 - bott 91.960 91.960 91.960 91.960 91.960 91.960 91.960 91.960

9 & 24 10 & 25 11 & 26 12 & 27 13 & 28 14 & 29 15 & 30Course1 - top ** 91.960 91.960 91.960 91.960 91.960 91.960 91.9601 - bott 91.957 91.932 91.931 91.925 91.929 91.933 91.9262 - top 91.940 91.957 91.951 91.950 91.951 91.970 91.9752 - bott 91.953 91.960 91.961 91.956 91.964 91.962 91.9723 - top 91.951 91.962 91.986 91.987 91.997 91.970 91.9573 - bott 91.961 91.974 91.967 91.946 91.992 91.977 91.9764 - top 91.948 91.974 91.996 91.977 91.989 91.963 91.9574 - bott 91.955 91.969 91.996 91.988 92.001 91.969 91.9565 - top 91.953 91.971 91.984 91.966 91.986 91.967 91.9395 - bott 91.945 91.975 91.995 91.975 91.981 91.957 91.9526 - top 91.958 91.953 91.987 91.989 92.002 91.977 91.9336 - bott 91.967 91.968 91.980 91.974 91.996 91.981 91.9477 - top 91.946 91.954 91.985 91.986 91.984 91.963 91.9407 - bott 91.939 91.924 91.966 91.979 91.977 91.964 91.9088 - top 91.939 91.933 91.963 92.019 91.948 91.953 91.9208 - bott 91.941 91.949 91.972 91.975 91.960 91.963 91.9319 - top 91.960 91.960 91.960 91.960 91.960 91.960 91.9609 - bott 91.960 91.960 91.960 91.960 91.960 91.960 91.96010 - top 91.960 91.960 91.960 91.960 91.960 91.960 91.96010 - bott 91.960 91.960 91.960 91.960 91.960 91.960 91.960

MAXIMUM DIAMETER = 92.034 M MINIMUM DIAMETER = 91.893 MMAXIMUM TANK SET OUT = 74 MM MAXIMUM TANK SET IN = -67 MM

Opposing Station

Opposing Station


APLE

91.960

SAMPLE 91.960

91.932

SAMPLE 91.932 91.931

SAMPLE 91.931

91.957

SAMPLE 91.957 91.951

SAMPLE 91.951 91.950

SAMPLE 91.950

91.960

SAMPLE

91.960 91.961

SAMPLE

91.961 91.956

SAMPLE

91.95691.951

SAMPLE

91.951 91.962

SAMPLE

91.962 91.986

SAMPLE

91.98691.961

SAMPLE

91.961 91.974

SAMPLE

91.974 91.967

SAMPLE

91.96791.948

SAMPLE

91.948 91.974

SAMPLE

91.974 91.996

SAMPLE

91.99691.955

SAMPLE

91.955 91.969

SAMPLE

91.96991.953

SAMPLE

91.953 91.971

SAMPLE

91.97191.945

SAMPLE

91.945 91.975

SAMPLE

91.97591.958

SAMPLE

91.9586 - bott

SAMPLE

6 - bott 91.967

SAMPLE

91.9677 - top

SAMPLE

7 - top 91.946

SAMPLE

91.9467 - bott

SAMPLE

7 - bott8 - top

SAMPLE





10 - topSAMPLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

RPOR

91.995

REPORT91.99591.955

REPORT91.95591.899

REPORT91.89991.979

REPORT91.979 91.955

REPORT91.95591.960

REPORT91.960 91.952

REPORT91.952

91.970

REPORT91.970 91.923

REPORT91.923

91.976

REPORT91.976 91.957

REPORT91.957 91.927

REPORT91.927

91.992

REPORT91.992 91.936

REPORT91.936 91.893

REPORT91.893

92.005

REPORT92.005 91.952

REPORT91.952 91.895

REPORT91.895

91.960

REPORT91.960 91.960

REPORT91.960 91.960

REPORT91.960

91.960

REPORT91.960 91.960

REPORT91.960 91.960

REPORT91.960

960

REPORT960

91.9

REPORT91.9

Opposing station internal offset - metresREPORT

Opposing station internal offset - metres12 & 27REPORT

12 & 27 13 & 28REPORT

13 & 28

91.960REPORT

91.960 91.960REPORT

91.96091.925REPORT

91.925REPORT

REPORT

RPOR

RPOR

REPORT

REPORT

RPOR

RPOR

RPOR

RPOR

RPOR

RPOR

REPORTOpposing station internal offsets - Calculated internal diameter - metres

SAMPLE R

EPORT


Opposing station internal offsets - metres

1 & 16 2 & 17 3 & 18 4 & 19 5 & 20 6 & 21 7 & 22 8 & 23Course1 - top ** 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.0001 - bott -0.031 -0.025 -0.014 -0.032 -0.050 -0.037 -0.030 -0.0282 - top -0.007 -0.017 -0.004 0.018 -0.007 0.000 -0.034 -0.0062 - bott 0.010 0.001 0.003 0.011 0.005 0.003 -0.007 0.0033 - top 0.001 0.034 0.024 0.026 -0.021 0.012 0.011 0.0253 - bott -0.003 0.004 0.002 0.026 -0.011 -0.006 -0.027 0.0004 - top 0.014 0.050 0.022 0.018 0.021 0.046 0.010 0.0044 - bott 0.005 0.053 0.034 0.031 -0.009 0.019 0.021 0.0345 - top 0.009 0.044 0.025 0.037 0.013 0.036 0.003 -0.0055 - bott 0.019 0.047 0.019 0.023 0.025 0.050 0.013 -0.0616 - top 0.000 0.074 0.038 0.015 0.004 0.038 0.019 -0.0056 - bott 0.012 0.056 0.033 0.036 0.014 0.039 0.000 -0.0087 - top 0.008 0.070 0.029 0.005 0.034 0.037 0.010 -0.0377 - bott -0.009 0.061 0.021 -0.001 -0.010 0.016 -0.003 -0.0338 - top -0.003 0.059 0.019 -0.010 0.015 0.031 -0.025 -0.0688 - bott 0.005 0.065 0.026 -0.001 0.037 0.044 -0.009 -0.0669 - top 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

9 & 24 10 & 25 11 & 26 12 & 27 13 & 28 14 & 29 15 & 30Course1 - top ** 0.000 0.000 0.000 0.000 0.000 0.000 0.0001 - bott -0.003 -0.028 -0.029 -0.035 -0.031 -0.027 -0.0342 - top -0.020 -0.003 -0.009 -0.010 -0.009 0.010 0.0152 - bott -0.007 0.000 0.001 -0.004 0.004 0.002 0.0123 - top -0.010 0.001 0.025 0.026 0.036 0.009 -0.0043 - bott 0.000 0.013 0.006 -0.015 0.031 0.016 0.0154 - top -0.013 0.013 0.035 0.016 0.028 0.002 -0.0044 - bott -0.006 0.008 0.035 0.027 0.040 0.008 -0.0055 - top -0.007 0.011 0.024 0.006 0.026 0.007 -0.0215 - bott -0.015 0.015 0.035 0.015 0.021 -0.003 -0.0086 - top -0.002 -0.007 0.027 0.029 0.042 0.017 -0.0276 - bott 0.007 0.008 0.020 0.014 0.036 0.021 -0.0137 - top -0.014 -0.006 0.025 0.026 0.024 0.003 -0.0207 - bott -0.021 -0.036 0.006 0.019 0.017 0.004 -0.0528 - top -0.022 -0.028 0.002 0.058 -0.013 -0.008 -0.0418 - bott -0.020 -0.012 0.011 0.014 -0.001 0.002 -0.0309 - top 0.000 0.000 0.000 0.000 0.000 0.000 0.0009 - bott 0.000 0.000 0.000 0.000 0.000 0.000 0.00010 - top 0.000 0.000 0.000 0.000 0.000 0.000 0.00010 - bott 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Opposing Station

Opposing Station


APLE

Opposing station internal offset etres

SAMPLE Opposing station internal offset etres

11 & 26

SAMPLE 11 & 26

0.000

SAMPLE 0.000 0.000

SAMPLE 0.000 0.000

SAMPLE 0.000

-0.028

SAMPLE

-0.028 -0.029

SAMPLE

-0.029 -0.035

SAMPLE

-0.035-0.020

SAMPLE

-0.020 -0.003

SAMPLE

-0.003 -0.009

SAMPLE

-0.009-0.007

SAMPLE

-0.007 0.000

SAMPLE

0.000 0.001

SAMPLE

0.001-0.010

SAMPLE

-0.010 0.001

SAMPLE

0.001 0.025

SAMPLE

0.0250.000

SAMPLE

0.000 0.013

SAMPLE

0.013-0.013

SAMPLE

-0.013 0.013

SAMPLE

0.013-0.006

SAMPLE

-0.006 0.008

SAMPLE

0.008-0.007

SAMPLE

-0.0075 - bott

SAMPLE

5 - bott -0.015

SAMPLE

-0.0156 - top

SAMPLE

6 - top -0.002

SAMPLE

-0.0026 - bott

SAMPLE

6 - bott7 - top

SAMPLE





9 - top

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

APLE

SAMPLE

SAMPLE

SAMPLE

POR0.004

REPORT0.0040.034

REPORT0.034-0.005

REPORT-0.0050.013

REPORT0.013 -0.061

REPORT-0.0610.019

REPORT0.019 -0.005

REPORT-0.005

0.000

REPORT0.000 -0.008

REPORT-0.008

0.037

REPORT0.037 0.010

REPORT0.010 -0.037

REPORT-0.037

0.016

REPORT0.016 -0.003

REPORT-0.003 -0.033

REPORT-0.033

0.031

REPORT0.031 -0.025

REPORT-0.025 -0.068

REPORT-0.068

0.037

REPORT0.037 0.044

REPORT0.044 -0.009

REPORT-0.009

0.000

REPORT0.000 0.000

REPORT0.000 0.000

REPORT0.000

000

REPORT000

0.0

REPORT0.0

Opposing station internal offsets - m REPORT

Opposing station internal offsets - m12 & 27REPORT

12 & 27 13 & 28REPORT

13 & 28

PORPORPORPORPORPORPOR

REPORT

Opposing station internal offsets - metres

SAMPLE R

EPORT


Ring # : 1 no Top & Bottom

Reference ring(1 no Top)1 no Bottom *Not to scale, magnified for clarity

23

12

1

2

3

4

5

6

7 8 9

10

11

16

13

14

15

17

18

19

20

21

22 24

25

26

27

28

29

30


SAMPLE

Reference ring(1 no Top) SAMPLE

Reference ring(1 no Top) SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

21

SAMPLE

21

SAMPLE R

EPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT5

REPORT5

REPORTRing offset graphs :

SAMPLE R

EPORT


Ring # : 8 no Top & Bottom

Reference ring8 no Top8 no Bottom *Not to scale, magnified for clarity

23

12

1

2

3

4

5

6

7 8 9

10

11

16

13

14

15

17

18

19

20

21

22 24

25

26

27

28

29

30


SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

21

SAMPLE

21

SAMPLE

SAMPLE R

EPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT5

REPORT5

REPORT

REPORTRing offset graphs :

SAMPLE R

EPORT


21.921 0 91.960 m 010th course

0 091.960 m

21.921 91.960 m0 0

9th course0 0

91.960 m21.921 91.958 m

16 -188th course

22 -1691.966 m

19.235 91.968 m23 -15

7th course8 -17

91.951 m16.500 91.960 m

5 -66th course

8 391.972 m

13.742 91.969 m12 -3

5th course12 7

91.979 m11.000 91.975 m

9 64th course

3 391.966 m

8.243 91.962 m-2 3

3rd course-5 2

91.958 m5.493 91.953 m

-5 -22nd course

2 891.970 m

2.745 91.960 m (Reference diameter)0 0

1st course-14 91.929 m -17

0.000 m

set out set in set in set out

*Not to scale, magnified for clarity

-200 0 +200Station 16

INTERNAL OFFSETS (OPPOSING STATIONS) IN MM

+200 0 -200Station 1

INTERNAL DIAMETER


SAMPLE 91.979

SAMPLE 91.979

91.975

SAMPLE 91.975

4th course

SAMPLE

4th course

-2

SAMPLE

-2

-5

SAMPLE

-5

-5

SAMPLE

-5

SAMPLE

SAMPLE

SAMPLE

SAMPLE

5.493

SAMPLE

5.493

2.745SAMPLE

2.745SAMPLE

SAMPLE R

EPORT

REPORT

REPORT-15

REPORT-15

-17

REPORT-17

-6

REPORT-6

91.972

REPORT91.972 m

REPORTm

91.969 REPORT

91.969 mREPORT

m

5th courseREPORT

5th courseREPORT

REPORT

REPORT

Offset graphs-opposite stations :

SAMPLE R

EPORT


21.921 0 91.960 m 010th course

0 091.960 m

21.921 91.960 m0 0

9th course0 0

91.960 m21.921 91.992 m

-10 -148th course

-3 -592.005 m

19.235 91.997 m7 3

7th course-2 -1

91.976 m16.500 91.998 m

12 66th course

4 -591.999 m

13.742 91.996 m6 -3

5th course13 0

92.010 m11.000 92.007 m

9 24th course

9 1391.980 m

8.243 91.973 m4 7

3rd course-14 -13

91.955 m5.493 91.960 m

-20 -142nd course

-4 -391.963 m


1st course-17 91.923 m -13

0.000 m



Station 7 Station 22


INTERNAL DIAMETER

+200 0 -200 -200 0 +200


SAMPLE 5th course

SAMPLE 5th course

92.010

SAMPLE 92.010

92.007

SAMPLE

92.007

4th course

SAMPLE

4th course

-14

SAMPLE

-14

-20

SAMPLE

-20

-4SAMPLE

-4SAMPLE

SAMPLE

5.493

SAMPLE

5.493

2.745SAMPLE

2.745SAMPLE

SAMPLE

SAMPLE R

EPORT

REPORT

REPORT-5

REPORT-5

3

REPORT3

-1

REPORT-1

91.999 REPORT

91.999 mREPORT

m91.996 REPORT

91.996 mREPORT

m

5th courseREPORT

5th courseREPORT

REPORT

REPORT

REPORT


SAMPLE R

EPORT


9th course0 0

91.960 m21.921 91.953 m

-24 178th course

-17 2091.963 m

19.235 91.963 m-17 20

7th course-11 15

91.964 m16.500 91.977 m

-4 186th course

-9 2991.981 m

13.742 91.967 m-20 27

5th course-21 18

91.957 m11.000 91.963 m

-13 164th course

-5 1491.969 m

8.243 91.970 m-3 12

3rd course1 15

91.977 m5.493 91.970 m

-1 112nd course

-1 391.962 m


1st course-11 91.933 m -16

0.000 m





INTERNAL DIAMETER

+200 0 -200 -200 0 +200


SAMPLE 5th course

SAMPLE 5th course

91.957

SAMPLE 91.957

91.963

SAMPLE

91.963

4th course

SAMPLE

4th course

-3

SAMPLE

-3

1

SAMPLE

1

-1

SAMPLE

-1

SAMPLE

SAMPLE

SAMPLE

5.493

SAMPLE

5.493

2.745SAMPLE

2.745SAMPLE R

EPORT20

REPORT20

20

REPORT20

15

REPORT15

91.981 REPORT

91.981 mREPORT

m91.967 REPORT

91.967 mREPORT

m

5th courseREPORT

5th courseREPORT

REPORT

REPORT

REPORT


SAMPLE R

EPORT


0 09th course

0 091.960 m

21.921 91.920 m-35 -5

8th course-29 0

91.931 m19.235 91.940 m

-27 77th course

-32 -2091.908 m

16.500 91.933 m-21 6

6th course-20 6

91.947 m13.742 91.939 m

-25 45th course

-14 691.952 m

11.000 91.957 m-11 8

4th course-10 6

91.956 m8.243 91.957 m

-6 23rd course

3 1291.976 m

5.493 91.975 m3 12

2nd course4 8

91.972 m2.745 91.960 m (Reference diameter)

0 01st course

-13 91.926 m -210.000 m





INTERNAL DIAMETER

+200 0 -200 -200 0 +200


SAMPLE 5th course

SAMPLE 5th course

91.952

SAMPLE 91.952

91.957

SAMPLE

91.957

4th course

SAMPLE

4th course

-6

SAMPLE

-6

3

SAMPLE

3

3

SAMPLE

3

SAMPLE

SAMPLE

SAMPLE

5.493

SAMPLE

5.493

2.745SAMPLE

2.745SAMPLE

SAMPLE R

EPORT

REPORT

REPORT0

REPORT0

7

REPORT7

-20

REPORT-20

91.947 REPORT

91.947 mREPORT

m91.939 REPORT

91.939 mREPORT

m

5th courseREPORT

5th courseREPORT

REPORT

REPORT

REPORT


SAMPLE R

EPORT


StationCourse1 - top ** 14 17 2 11 25 23 17 8 10 22 17 11 21 11 13 17 8 12 21 251 - bott 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 02 - top 6 8 -13 8 9 10 -6 2 9 14 8 -14 13 7 13 12 -6 17 36 282 - bott 13 15 -4 11 21 21 10 5 11 20 13 1 19 7 14 22 5 15 26 283 - top 1 22 -8 -12 -11 21 10 11 4 -1 11 -16 12 -3 -4 9 15 24 48 183 - bott -2 5 -20 -2 -4 7 -8 -2 9 13 6 -23 8 1 5 8 2 14 38 214 - top 6 31 -20 -28 6 24 9 3 -1 9 14 -32 -2 -19 -15 6 11 23 45 324 - bott 0 30 -9 -18 -10 14 9 12 2 0 11 -27 6 -11 -14 3 15 24 48 185 - top 4 25 -30 -31 -4 13 1 -5 -5 12 5 -37 -11 -31 -34 -8 0 25 56 235 - bott 4 25 -29 -31 3 22 8 -65 -8 7 11 -38 -14 -32 -23 2 3 18 42 286 - top -8 29 -41 -61 -13 13 2 -5 2 6 -3 -20 -7 -20 -35 -16 15 38 53 126 - bott -5 22 -39 -44 -10 10 -6 -9 2 12 -5 -33 -10 -25 -34 -7 4 31 57 197 - top 7 34 -53 -70 -2 17 -6 -21 -3 9 -6 -8 -13 -36 -44 -28 1 36 47 267 - bott -8 20 -57 -71 -21 3 -15 -19 -7 -14 -17 -20 -23 -30 -49 -30 6 32 42 18 - top -1 29 -67 -78 -4 14 -24 -31 -2 -6 -22 40 -32 -44 -53 -32 -6 39 39 88 - bott 5 32 -59 -76 0 22 -17 -40 -2 8 -17 -12 -29 -37 -47 -30 -3 38 46 269 - top -24 -57 -48 -17 8 -46 -66 -50 -52 -49 -31 -35 -29 7 42 23 -16 -30 -37 -209 - bott -13 -53 -38 -12 26 -34 -65 -50 -49 -50 -25 -36 -21 14 46 12 -17 -33 44 -28

16 17 1811 129 105 6 7 15

Verticality value in each shell two position with respect to the bottom of the first shell

1 14 19 208 132 3 4

7.Tank Verticality Evaluation Tank verticality survey was performed in accordance with API, to obtain verticality data at two heights of each tank of the top of the shell with respect to bottom of the shell (measured with optical equipment along 30 vertical stations around the tank exterior).

The verticality evaluation was made in two different formats. One format represents the verticality value in each shell two position with respect to the bottom of the first shell & other represents the value of the top of the tank with respect to the bottom of the tank.


SAMPLE 11

SAMPLE 11

11

SAMPLE 11 4

SAMPLE 4

-2

SAMPLE -2 9

SAMPLE 9 13

SAMPLE 13

9

SAMPLE

9 3

SAMPLE

3 -1

SAMPLE

-19

SAMPLE

9 12

SAMPLE

12 2

SAMPLE

21

SAMPLE

1 -5

SAMPLE

-5 -5

SAMPLE

-522

SAMPLE

22 8

SAMPLE

8 -65

SAMPLE

-6513

SAMPLE

13 2

SAMPLE

2 -5

SAMPLE

-510

SAMPLE

10 -6

SAMPLE

-6-2

SAMPLE

-2 17

SAMPLE

17 -6

SAMPLE

-6-21

SAMPLE

-21 3

SAMPLE

3 -15

SAMPLE

-15-78

SAMPLE

-78 -4

SAMPLE

-4 14

SAMPLE

14-76

SAMPLE

-76 0

SAMPLE

0 22

SAMPLE

22-17

SAMPLE

-17 8

SAMPLE

8 -46

SAMPLE

-46-38

SAMPLE

-38 -12

SAMPLE

-12 26

SAMPLE

26

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE R

EPORT

22 REPORT

22 17REPORT

17 11REPORT

110 REPORT

0 0REPORT

014 REPORT

14 8REPORT

813REPORT

13

11

REPORT11 12

REPORT12


REPORTVerticality value in each shell two position with respect to the bottom of the first shell

13

REPORT13

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORTTank verticality survey was performed in accordance with API, to obtain verticality data at two heights of each tank of the t

REPORTTank verticality survey was performed in accordance with API, to obtain verticality data at two heights of each tank of the tthe shell with respect to bottom of the shell (measured with optical equipment along 30 vertical stations around the tank ext

REPORTthe shell with respect to bottom of the shell (measured with optical equipment along 30 vertical stations around the tank ext

The verticality evaluation was made in two different formats. One format represents the verticality value in each shell two p

REPORTThe verticality evaluation was made in two different formats. One format represents the verticality value in each shell two pwith respect to the bottom of the first shell & other represents the value of the top of the tank with respect to the bottom

REPORTwith respect to the bottom of the first shell & other represents the value of the top of the tank with respect to the bottom

REPORT

SAMPLE R

EPORT


StationCourse1 - top ** 14 13 20 -7 6 12 24 10 16 21 14 8 22 12 16 20 20 20 10 231 - bott 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 02 - top 21 -4 14 -32 5 6 33 3 24 30 10 -1 23 15 22 25 21 14 5 162 - bott 13 7 20 -21 2 11 24 10 16 26 10 3 23 13 16 22 19 15 6 183 - top 6 9 20 -33 8 21 55 33 17 12 11 2 23 -9 36 42 23 10 10 263 - bott 2 -11 8 -28 6 7 21 32 20 22 8 -1 18 12 23 31 22 7 3 154 - top 26 -2 -4 -42 -1 17 50 28 15 12 -1 -1 15 14 34 44 7 3 6 164 - bott 9 9 17 -38 3 20 56 32 13 10 4 3 20 12 34 43 15 6 6 195 - top 16 -12 -16 -43 -17 4 34 24 21 3 -20 -10 10 11 32 42 -7 -6 0 115 - bott 21 -9 -12 -48 -8 9 44 22 12 5 -4 -9 13 11 34 43 2 -2 2 146 - top 7 -8 -27 -56 -40 4 29 25 9 -13 -11 -10 15 22 41 54 3 -10 -5 -16 - bott 11 -19 -26 -47 -31 -1 27 22 18 0 -19 -13 12 14 36 46 -7 -9 -7 27 - top -3 -14 -48 -68 -47 0 9 8 6 -2 -8 -11 24 45 58 50 -1 -18 -21 -227 - bott -10 -18 -46 -71 -54 -8 14 11 1 -29 -4 -12 18 37 52 54 -2 -10 -17 -388 - top -7 -32 -70 -78 -55 -8 -8 -11 2 -15 -20 -43 -17 22 43 9 -19 -26 -31 -208 - bott -2 -23 -59 -76 -53 -4 0 -2 5 -10 -16 -27 8 28 47 21 -4 -16 -18 -379 - top -24 -57 -48 -17 8 -46 -66 -50 -52 -49 -31 -35 -29 7 42 23 -16 -30 -37 -209 - bott -13 -53 -38 -12 26 -34 -65 -50 -49 -50 -25 -36 -21 14 46 12 -17 -33 44 -28

MAXIMUM VERTICALITY SET IN = 57 mmMINIMUM VERTICALITY SET OUT = -78 mm

16 17 18 19 2030 31 32 1322 23 24 25 26 27 28 29 14 15


21


SAMPLE 18

SAMPLE 18

8

SAMPLE 8 6

SAMPLE 6

11

SAMPLE 11 1

SAMPLE 1 -29

SAMPLE -29

-8

SAMPLE

-8 -11

SAMPLE

-11 2

SAMPLE

2 -15

SAMPLE

-150

SAMPLE

0 -2

SAMPLE

-2 5

SAMPLE

5-66

SAMPLE

-66 -50

SAMPLE

-50 -52

SAMPLE

-52-34

SAMPLE

-34 -65

SAMPLE

-65 -50

SAMPLE

-50

mm

SAMPLE

mm-78

SAMPLE

-78 mm

SAMPLE

mm

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE R

EPORT22

REPORT22 12

REPORT12 16

REPORT16

0

REPORT0 0

REPORT0

-1

REPORT-1 23

REPORT23 15

REPORT15

3

REPORT3 23

REPORT23 13

REPORT13

11

REPORT11 2

REPORT2 23

REPORT23

8

REPORT8 -1

REPORT-1 18

REPORT18

-1

REPORT-1 -1

REPORT-1 15

REPORT15

10

REPORT

10 4

REPORT

4 3

REPORT

33 REPORT

3 -20REPORT

-20 -10REPORT

-105 REPORT

5 -4REPORT

-4-13 REPORT

-13 -11REPORT

-11-19REPORT

-19

16

REPORT1614

REPORT14 15

REPORT15

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

SAMPLE R

EPORT


StationCourse1 no bottom13.271 13.462 13.141 8.845 8.439 11.311 12.358 12.334 13.157 13.446 13.023 13.870 13.174 13.157 13.215 13.054 12.872 12.824 13.143 13.3099 no top 13.272 13.433 13.208 8.923 8.443 11.297 12.382 12.365 13.159 13.452 13.045 13.830 13.206 13.201 13.268 13.086 12.878 12.785 13.104 13.301

Verticality Value

-1 29 -67 -78 -4 14 -24 -31 -2 -6 -22 40 -32 -44 -53 -32 -6 39 39 8

StationCourse1 no bottom13.411 11.733 11.851 11.172 10.144 8.584 7.127 9.772 12.943 11.924 4.646 7.344 8.947 10.722 8.148 8.777 11.533 9.452 10.865 8.5029 no top 13.418 11.765 11.921 11.250 10.199 8.592 7.135 9.783 12.941 11.939 4.677 7.379 8.976 10.715 8.106 8.754 11.549 9.482 10.902 8.522

Verticality Value

-7 -32 -70 -78 -55 -8 -8 -11 2 -15 -31 -35 -29 7 42 23 -16 -30 -37 -20

MAXIMUM VERTICALITY SET IN = 40 mmMINIMUM VERTICALITY SET OUT = -78 mm

19 2013 14 15 16 17 1827 28 29 30 31 32

19 20

Verticality value of the top of the tank with respect to the bottom of the tank.

21 22 23 24 25 26

13 14 15 16 17 187 8 9 10 11 121 2 3 4 5 6


The maximum out-of-plumbness / verticality of the top of the shell with respect to bottom of the shell is + 127mm.

This evaluation is done in accordance with the section 10.5.2.1 of API Standard 653

The maximum out-of-plumbness / verticality of the top of the shell with respect to bottom of the shell is + 127mm.



SAMPLE 12.943

SAMPLE 12.943

12.941

SAMPLE 12.941

-11

SAMPLE

-11 2

SAMPLE

2 -15

SAMPLE

-15

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

plumbness / verticality of the top of the shell with respect to bottom of the shell is

SAMPLE

plumbness / verticality of the top of the shell with respect to bottom of the shell is


SAMPLE


REPORT13.174

REPORT13.174 13.157

REPORT13.157 13.215

REPORT13.215 13.054

REPORT13.054

13.206

REPORT13.206 13.201

REPORT13.201 13.268

REPORT13.268

40

REPORT40 -32

REPORT-32 -44

REPORT-44

11.924 REPORT

11.924 4.646REPORT

4.6464.677REPORT

4.677

30 REPORT

30 31REPORT

31 32REPORT

32

14

REPORT14 15

REPORT15 16

REPORT16


REPORTVerticality value of the top of the tank with respect to the bottom of the tank.

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

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REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

SAMPLE R

EPORT

8. Edge Settlement (API653B method)

The measurement points are connected with spline curves to produce each floor profile Dimensions in millimetres

Report No : IET-16--17/000 Rev 00 November 2016


Page 38 of 48

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EPORT

Edge Settlement (API653B method)

The measurement points are connected with spline curves to produce each floor profile Dimensions in millimetres



SAMPLE R

EPORT

Edge Settlement Evaluation – API653B

API 653 Appendix B Floor Edge Settlement Evaluation Criteria

1.

��

2.

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particle or liquid penetrant examination.3.

�� ! "� � � � � � � � � � � � � � � ��

4. An asterix preceeding an evaluation comment denotes a settlement radius that exceeds the range of the graph provided by the Standard (6 feet).� � � � � � � � � � � � � � � � � � � � � � � � � � �% � � � � � � � � � � � � � � � � ��

Floor API 653B Actual Actual Max Max ActualWeld Angle Evaluation Settled Area Settled Area Allowable Allowable Edge Evaluation of settlement in accordance with

within Method Radius Radius Settlement Settlement Settlement Variation API 653B Figures B-10, B-11 or Section B.3.4.3 Station Settled Area Reference R (mm) R (feet) &'( ) &' ) &*+ ,- ./ &' ( ) &' ) &* 0 0/ (mm) (mm)

1 none B-11 0 0.00 #N/A #N/A 0 #N/A #N/A2 none B-11 915 3.00 4.67 119 24 -95 less than 75% of Be3 none B-11 0 0.00 #N/A #N/A 0 #N/A #N/A4 none B-11 0 0.00 #N/A #N/A 0 #N/A #N/A5 none B-11 1352 4.44 6.04 153 26 -127 less than 75% of Be6 45° B.3.4.3 638 2.09 3.03 77 27 -50

� � � � � � � ! "� � �

7 none B-11 0 0.00 #N/A #N/A 0 #N/A #N/A8 none B-11 282 0.93 2.00 51 14 -37 less than 75% of Be9 none B-11 1218 4.00 5.65 144 58 -86 less than 75% of Be10 none B-11 0 0.00 #N/A #N/A 0 #N/A #N/A11 none B-11 0 0.00 #N/A #N/A 0 #N/A #N/A12 none B-11 404 1.33 2.00 51 20 -31 less than 75% of Be13 65° B.3.4.3 455 1.49 2.00 51 19 -32

� � � � � � � ! "� � �

14 15° B.3.4.3 706 2.32 3.49 89 31 -58

� � � � � � � ! "� � �

15 perpendicular B-11 1487 4.88 6.43 163 58 -105 less than 75% of Be16 perpendicular B-11 1435 4.71 6.28 160 46 -114 less than 75% of Be17 none B-11 1407 4.62 6.20 157 43 -114 less than 75% of Be18 45° B.3.4.3 1288 4.23 5.02 128 50 -78

� � � � � � � ! "� � �

19 30° B.3.4.3 1313 4.31 5.33 135 64 -71

� � � � � � � ! "� � �

20 none B-11 1013 3.32 4.99 127 27 -100 less than 75% of Be21 none B-11 669 2.19 3.36 85 37 -48 less than 75% of Be22 20° B.3.4.3 1576 5.17 6.21 158 65 -93

� � � � � � � ! "� � �

23 35° B.3.4.3 1692 5.55 6.18 157 53 -104

� � � � � � � ! "� � �

24 none B-11 0 0.00 #N/A #N/A 0 #N/A #N/A




SAMPLEREPORT


Location 1 to 30 as indicated above is moving in anti-clockwise direction

API Standard 653 (B.3.2) approximation for maximum out-of-plane deflection is 18.00 mm.

The Standard suggests further assessment or repair if the deflection exceeds the permissible value.

This evaluation is done in accordance with the section B.2.2.4f of API Standard 653

The max Permissible value As per API Standard 653 Edition 2014 (section B.3.2.1) is + 24.10 mm by the following equation

S maxft = (L2 x Y x 11) 2[(E x H)]

So, the tank can be used as per above mentioned value from API standard, but needs to checked for settlement at periodic interval.


SAMPLE clockwise direction

SAMPLE clockwise direction

API Standard 653 (B.3.2) approximation for maximum out

SAMPLE API Standard 653 (B.3.2) approximation for maximum out-

SAMPLE -of

SAMPLE of-

SAMPLE -

SAMPLE plane deflection is 18.00 mm.

SAMPLE plane deflection is 18.00 mm.


SAMPLE



SAMPLE


SAMPLE

The max Permissible value As per API Standard 653 Edition 2014 (section B.3.2.1) is

SAMPLE


So, the tank can be used as per above mentioned value from API standard, but needs to checked for settlement at periodic

SAMPLE

So, the tank can be used as per above mentioned value from API standard, but needs to checked for settlement at periodic

REPORT

REPORT9. Tank Shell Settlement Evaluation

SAMPLE R

EPORT

TANK No SAMPLE TANK SURVEY REPORT

10.TANK BOTTOM FLOOR PROFILE FROM CENTRE (CONE UP)CENTRELINE TANK SHELL SIDE

02468

1012141618

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

dept

h

positions

Segment 1 (0 deg)

02468

1012141618

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

dept

h

positions

Segment 2 (30 deg anti-clockwise)

02468

1012141618

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

dept

h

positions


02468

1012141618

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

dept

h

positions



SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

3

SAMPLE

3 4

SAMPLE

4 5

SAMPLE

5

Segment 3 (60 deg anti

SAMPLE

Segment 3 (60 deg anti

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

18SAMPLE

18SAMPLE R

EPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT14

REPORT14 15

REPORT15 16

REPORT16

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

9

REPORT

9 10

REPORT

10 11

REPORT

11

positions REPORT

positions REPORT

SAMPLE R

EPORT

TANK No SAMPLE TANK SURVEY REPORT

TANK BOTTOM FLOOR PROFILE FROM CENTRE (CONE UP)

AVERAGE SHAPE OF TANK BOTTOM

CONE-UP PROFILE(ALL DEPTH IN CM)

CENTRELINE TANK SHELL SIDE

CENTRELINE TANK SHELL SIDE

16.31666667

12.83333333 12.54166667 11.59166667

10.59166667 8.958333333 8.3 7.458333333

6.416666667 5.966666667 5.125 4.516666667 3.366666667

2.441666667 1.608333333 0 0

2468

1012141618

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16Series1 16.31667 12.83333 12.54167 11.59167 10.59167 8.958333 8.3 7.458333 6.416667 5.966667 5.125 4.516667 3.366667 2.441667 1.608333 0

02468

1012141618

dept

h

positions

AVERAGE SHAPE OF BOTTOM (DEPTH FROM TANK BOTTOM)


SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE

SAMPLE 6

SAMPLE 6 7

SAMPLE 7 8

SAMPLE 8

SAMPLE

10.59167

SAMPLE

10.59167 8.958333

SAMPLE

8.958333 8.3

SAMPLE

8.3 7.458333

SAMPLE

7.458333

positions

SAMPLE

positions

SAMPLE

SAMPLE R

EPORTTANK SHELL SIDE

REPORTTANK SHELL SIDE

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT4.516666667

REPORT4.5166666674.516666667

REPORT4.516666667

3.366666667

REPORT3.3666666673.366666667

REPORT3.3666666673.366666667

REPORT3.3666666673.366666667

REPORT3.366666667

2.441666667

REPORT2.4416666672.441666667

REPORT2.4416666672.441666667

REPORT2.4416666672.441666667

REPORT2.4416666672.441666667

REPORT2.4416666672.441666667

REPORT2.4416666671.608333333

REPORT1.6083333331.608333333

REPORT1.6083333331.608333333

REPORT1.6083333331.608333333

REPORT1.608333333

13

REPORT13 14

REPORT14 15

REPORT15

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORT

REPORTAVERAGE SHAPE OF BOTTOM (DEPTH FROM TANK BOTTOM)

REPORTAVERAGE SHAPE OF BOTTOM (DEPTH FROM TANK BOTTOM)

REPORT

SAMPLE R

EPORT



Tank Shell Settlement : The maximum out-of-plane deflection is 18.0mm.


+ 24.10 mm by the following equation

S max ft = (L2 x Y x 11) 2[(E x H)]

Where: Smax, ft is permissible out-of-plane settlement, in feet (ft);

L is arc length between measurement points, in feet (ft);

Y is yield strength of the shell material, in pound force per square inch (lbf/in2);

E is Young’s Modulus, in pound force per square inch (lbf/in2);

H is tank height, in feet (ft).

Tank Out-of-Roundness / Ovality : The maximum radius variation at300mm above the base of the tank shell is -25.0 mm.

The tolerances given in API 653 Table 10.2 the max Permissible value for Radii measured at 1 ft. above the shell-to-bottom weld shall not exceed +31.75mm (Tank Diameter (Feet) >250).

Tank Out-of-Plumbness / Verticality : The maximum Verticalityvalue of the top of the tank with respect to the bottom of the tank is -78.0 mm & The maximum the verticality value in each shell two position with respect to the bottom of the first shell is -78.0 mm

The maximum out-of-plumbness / verticality of the top of the shell with respect to bottom of the shell is + 127.0 mm.


Reviewed & Approved By:


SAMPLE

Roundness

SAMPLE

Roundness /

SAMPLE

/ Ovality

SAMPLE

Ovalitythe

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the base

SAMPLE

base of

SAMPLE

of the

SAMPLE

the tank

SAMPLE

tank

tolerances

SAMPLE

tolerances given

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given in

SAMPLE

in API

SAMPLE

APImeasured

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measured at

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at 1

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1 ft

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ft.

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. above

SAMPLE

above(Tank

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(Tank Diameter

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Diameter (Feet)

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(Feet)

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TankSAMPLE

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OutvalueSAMPLE

value ofSAMPLE

of theSAMPLE

the&SAMPLE

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the

REPORT(section

REPORT(section

settlement,

REPORTsettlement, in

REPORTin feet

REPORTfeet (ft)

REPORT(ft);

REPORT;

feet

REPORTfeet (ft)

REPORT(ft);

REPORT;

material,

REPORTmaterial, in

REPORTin pound

REPORTpound force

REPORTforce

per REPORT

per squareREPORT

square inchREPORT

inch

SAMPLE R

EPORT XX XXXX

IETQ-16-000 rev 00

MOHAMED RAUB

SANJAY BOSE

YES

IET ADMINISTRATION &CLIENT

SAMPLE R

EPORT

C-xx STORAGE TANK xx-xxxx TANK EDGE SETTLEMENT SURVEY (DURING HYDROTEST)

Report No: IETQ-16-062 rev 00 August 2016

CONTENTS

1. Execution Summary

2. Person To Contact

3. Applicable Codes, Standard, Specification

4. Abbreviation

5. Tank Description

6. Tank Edge Settlement Evaluation - During Hydro test (Waterfilling)

7. Tank Edge Settlement Evaluation with respect to 0% waterlevel


Page 1 of 7

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EPORT



1. Execution SummaryEdge settlement Survey on different water level (0, 20, 40, 60 & 80 percentage) during water filling and (40 & 0 percentage) during dewatering of hydro test had to be carried out on C-xxStorage Tank-xx-xxxx; vertical Butt welded mild steel cylindrical tank, with a fixed roof.

On behalf of our end client, Qatar Chemical Company Ltd.(QCHEM) we have performed a survey of the tank to provide data to assist in determining the compliance of tank with API Standard 653, Appendix B Shell Edge Settlement.

The engineers who performed the onsite survey were Mr. Sanjay Bose & Mr. Sobin Sibichen.

This report should be read in conjunction with API 653 Appendix B.

The API 653, Appendix B standard allows the operator to interpret settlement data, particularly the determination of floor edge settlement break-over points and the nomination of statistical outlying data for shell settlement in determination of the plane of rigid tilt and the tank shell deflection.

We have exercised such judgment in good faith and provide illustrations of our working in this report; and we have processed the data for the convenience of engineering personnel assessing the tank against the API 653 B standard. The ultimate responsibility therefore lies with the engineers in accepting the information in this report and its suitability for deciding upon the condition of the tank consequently, we are receptive to any requests from our client to re-process the tank data in accordance with their differing interpretation of the API 653B standard.

The Standard acknowledges that the tank’s previous service history may be considered inevaluating many of the aspects of settlement.

We cannot comment whether the apparent settlement of the tank represents the as-built condition or is settlement since construction. The API 653 settlement specifications assume the current condition to have developed from a purely symmetrical tank, and as such should be viewed as a worst-case evaluation.

Other than by the methods described in API Standard 653 Appendix B, we do not attempt to calculate the tank shell stresses that may be generated by tank settlement.

Page 2 of 7

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C- xx STORAGE TANK xx-xxxx TANK EDGE SETTLEMENT SURVEY (DURING HYDROTEST)


2. Person To Contact CLIENT:

Qatar Chemical Company Ltd.,Mesaieed Industrial City,State of Qatar.

CONTRACTOR:

Person to Contact:

Sub-Contractor:

Inside Exploration Technologies WLL,P.O. Box: 201763 Doha, State of Qatar.

Person to Contact: Mr. Sanjay Bose Technical In-charge | Tank Survey & Calibration Division T: +974 3347 1069

E: [email protected]

Mr. Ginosh Abraham Director-Middle East.

Page 3 of 7

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3. Applicable Codes, Standards, Specification

1. API – 653 Tank Inspection, Repair, Alteration and Reconstruction – 5th

Edition 2014

2. API 653, Annex B – Evaluation of Tank Bottom Settlement – 5th Edition 2014

3. ISO 7507 / API MPMS – Manual of Petroleum Measurement Standards.

4. MECHANICAL DATA Sheets’ (As Built)

4. Abbreviation

API – American Petroleum Institute

ISO – International Standard Organization

Smax - Permissible out-of-plane settlement

L - Arc length between measurement points

Y - Yield strength of the shell material

E - Young’s Modulus

H - Tank height

M - Meters

mm – Millimeters

Page 4 of 7

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EPORT



5. Tank Description

Client Qatar Chemical Company Ltd.,

Location Mesaieed, Qatar.

Tank Number C-xx STORAGE TANK-xxxxxx

Material of Construction Carbon Steel

Number of Shell Courses Six (06)

Method of Construction Welding

Product Storage C-xx Product

Service 0, 20, 40, 60 & 80% water level during Hydro test

Type of Roof Fixed Dome

Evaluation Code API 653 Edition-2014

Evaluation Carried out by Mr. Sanjay Bose – Surveyor

Date of Survey

Inspection/Survey Carried out Tank Edge Settlement

Values Considered for evaluation:

Height: 10.800 M Arc Length (L): 8.245 M Yield Strength (Y): 30000 Young’s Modulus (E): 29000000

Page 5 of 7

SAMPLE

C-xx STORAGE TANK-xx-xxxx TANK EDGE SETTLEMENT SURVEY(DURING HYDROTEST)

1 2 3 4 5 6 7 8Actual Edge Settlement (mm) 0.0 -4.0 6.0 -9.0 2.0 -4.0 0.0 0.0Settlement Value - 0% Water Level -3.0 0.5 5.0 -5.0 -1.0 0.5 -1.0 4.0Settlement Value - 20% Water Level -4.5 -1.5 2.0 0.0 3.5 6.5 -1.0 -5.0Settlement Value - 40% Water Level -2.5 -3.5 -1.5 4.0 4.5 4.5 -0.5 -5.0Settlement Value - 60% Water Level -2.5 -2.5 -1.5 1.5 0.5 6.5 3.5 -5.5Settlement Value - 80% Water Level -3.5 2.5 -0.5 -0.5 3.5 5.5 0.5 -7.5Settlement Value - 40% Water Level (Dewatering) 1.0 -3.5 1.0 -4.5 5.0 5.5 -7.0 2.5Settlement Value - 0% Water Level (Dewatering) 0.0 -1.0 -3.0 1.5 6.0 6.0 -3.0 -6.5

-10.0-8.0-6.0-4.0-2.00.02.04.06.08.0

6. Tank Edge Settlement Evaluation - During Hydrotest (Water filling)

Location 1 to 8 as indicated above is moving in anti-clockwise direction

API Standard 653 (B.3.2) approximation for maximum out-of-plane deflection is -7.5 mm.


This evaluation is done in accordance with the section B.2.2.4f of API Standard 653.

The max Permissible value As per API Standard 653 Edition 2014 (section B.3.2.1) is + 35.81 mm by the following equation

S maxft = (L2 x Y x 11) 2[(E x H)]

Report No : IETQ-16-000 rev 00 August 2016Page 6 of 7

SAMPLE R

EPORT

C-xx STORAGE TANK-xx-xxxx TANK EDGE SETTLEMENT SURVEY(DURING HYDROTEST)

1 2 3 4 5 6 7 8Settlement Value - 0% Water Level 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Settlement Value - 20% Water Level 1.5 2.0 3.0 -5.0 -4.5 -6.0 0.0 9.0Settlement Value - 40% Water Level -0.5 4.0 6.5 -9.0 -5.5 -4.0 -0.5 9.0Settlement Value - 60% Water Level -0.5 3.0 6.5 -6.5 -1.5 -6.0 -4.5 9.5Settlement Value - 80% Water Level 0.5 -2.0 5.5 -4.5 -4.5 -5.0 -1.5 11.5Settlement Value - 40% Water Level (Dewatering) -4.0 4.0 4.0 -0.5 -6.0 -5.0 6.0 1.5Settlement Value - 0% Water Level (Dewatering) -3.0 1.5 8.0 -6.5 -7.0 -5.5 2.0 10.5

-15.0-10.0

-5.00.05.0

10.015.0

7. Tank Edge Settlement EvaluationWith respect to 0% water level

In the above graph Evaluation for Settlement Survey Value in different water level is calculated with respect to 0% water level as reference.

8. Evaluation SummaryThe maximum out-of-plane deflection is -7.5 mm.

The max Permissible value As per API Standard 653 Edition 2014 (section B.3.2.1) is + 35.81 mm by the following equation S max ft = (L2 x Y x 11)

2[(E x H)]

Where: Smax, ft is permissible out-of-plane settlement, in feet (ft); L is arc length between measurement points, in feet (ft); Y is yield strength of the shell material, in pound force per square inch (lbf/in2); E is Young’s Modulus, in pound force per square inch (lbf/in2); H is tank height, in feet (ft).

Report No : IETQ-16-000rev 00 August 2016Page 7 of 7

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