analysis report (louis ray visit)

8/8/2019 Analysis Report (Louis Ray Visit)

1/55

ANALYSIS REPORT

Well No: SK-004

Date: 18th Nov 2010

Average PPRL: 11275 Current PPRL: 10928

Average MPRL: 7177 Current MPRL: 7264

Average Load Span: 4098

Current Load Span: 3664

Average Card Area:

Current Card Area:

Echometer FAP: 4500

(8/13/2010)

Calculated FAP: 3471

DF Multiplier (Upstroke): 1

DF Multiplier (Downstroke):

1

Normal Card:

Current Card:

Special Card (if

any):

Cards with TV Leakage

Card with TV Leakage

Cards before WOJ

Leakage

Average Production: 23.8

bfpd

Current Production: 15.07

bfpd (4.2.10)

Test Production Trend

1


2/55

2


3/55

Well History:

Well got stuck-up on 29th June. It went on Work over on 17th October. After

WOJ, the cards obtained depicted TV leakage.

Recommendations & performance (if any):

Pump reseating was recommended on 12th November and was reseated on

13th November. No change in card shape observed after pump reseating.

Remarks and Specific Observations

A decreasing trend in well test production was observed even before project

initiation.

3


4/55

Well No: SK-006

Date: 26th Nov 2010





Average Card Area:

Current Card Area:

Echometer FAP: 5046

(11/24/2010)




1

Normal Card:

Current Card:

Special Card (if

any):

Cards with TV closure

problem

Card with TV closure

problem

B efore WOJ ( No

Production )


bfpd


bfpd (4.2.10)


4


5/55

Well History:

Well went on WOJ on 13th November 2010. Not much of change observed

after work over.


Travelling valve closure problem and/or worn out valves envisaged.


No production was observed in this well since the start of the project. Well

was shut down for three months due to uneconomical producing rate.

5


6/55

Well No: SK-010

Date: 26th Nov 2010





Average Card Area:

Current Card Area: 2569.96

Echometer FAP (ft): 3878

(10/25/10)


DF Multiplier (Upstroke):

1.15


1

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards Normal Card

Average Production: 140

bfpd

Current Production: 152 bfpd


6

NIL


7/55

Well History:

NIL


Recommended for SPM increase on 26th July 10. Recommendation was kept in

abeyance due to the well being stable at this SPM.


Production is stable since initiation of project.

7


8/55

Well No: SK-042

Date: 29th Nov 2010





Average Card Area:

Current Card Area: 2864


(6/15/2010)




1

Normal Card:

Current Card:

Special Card (if

any):

Cards with split barrel Card with TV closure

problem

B efore Rod Stuck up

Average Production: 13 bfpd

(till June)

Current Production: NIL (After

WOJ)


8


9/55

9


10/55

Well History:

Rod got stuck-up on 1st July 10 (just after the start of the project). Reason

could not be inferred. Well came back from WOJ on 23rd August 10. HOC was

done on 8th September 10. Prominent valve leakage and/or split barrel

tendency was observed since then.


Check for split barrel was recommended on 29th Sep. 2010 and the well was

consequently shut down for another WOJ on 30th Aug. 2010.


No production has been observed since the WOJ.

10


11/55

Well No: SK-057

Date: 29th Nov 2010





Average Card Area:



(11/24/2010)


DF Multiplier (Upstroke): 1 DF Multiplier (Downstroke):

0.125

Normal Card:

Current Card:

Special Card (if

any):

Cards with kinks Card showing kink in

Down-stroke

Flip card due to unit

vibration

Average Production: 15 bfpd Current Production: 18.85

bfpd


11

SPM


12/55

Well History:

Frequent flip cards were observed till August 2010. Unit vibration check and

repositioning was recommended and performed on 26th August 2010. Normal

cards are obtained since then with kinks in the cards occasionally.


Vibration check due to Flip cards was recommended as mentioned above.

SPM reduction was recommended due to high gas interference, on 10th Oct.

2010 and was reduced from 3.5 to 2.15 on 29th Oct. 2010. Cards showing

better fillage have been observed since then.


Average production from this well is about 15 bfpd, the data for June, July and

August 2010 are highly misleading (with productions of 47, 29 and 31 bfpd

respectively).

12


13/55

Well No: SK-059

Date: 29th Nov 2010





Average Card Area:


Echometer FAP (ft): NA

(Annulus valve leakage)

Calculated FAP: 36


0.8

Normal Card:

Current Card:

Special Card (if

any):

Cards with Gas

interference

Card with gas

interference

Cards before & after SL

change


bfpd


13

SPM


14/55

Well History:

No major Intervention job performed till now.


SPM reduction from 3.2 to 2.5 and SL increase from 64 to 86 in was

recommended on 10th Oct. 2010. SL was increased on 26th Oct. 2010.

Increase in production has been observed after SL change.

SPM reduced to 2.1 on 26th Nov. 2010. Well under observation.


The effective down-hole stroke length is very less as compared to surface

stroke length (Sp/S=0.75).

14


15/55

Well No: SK-063

Date: 29th Nov 2010





Average Card Area:



(10/19/10)

Calculated FAP: -1363

DF Multiplier (Upstroke): 2.8 DF Multiplier (Downstroke):

1

Normal Card:

Current Card:

Special Card (if

any):

Cards with increasing

card area

Card with high card area Closed flow line

valve


bfpd


15


16/55

Well History:

No major Intervention job performed till now.


SPM reduction from 3.2 to 2.5 and SL increase from 64 to 86 in was

recommended on 10th Oct. 2010. SL was increased on 17th Oct. 2010. Slight

increase in production has been observed after SL change.


SPM reduction is pending. The effective down-hole stroke length is very less

as compared to surface stroke length (Sp/S=0.75). Card area and load span

(vertical well profile) are abnormally high and have been increasing

gradually.

16


17/55

Well No: SK-066

Date: 29th Nov 2010





Average Card Area:



(10/14/10)


DF Multiplier (Upstroke): 1 DF Multiplier (Down-stroke):

1

Normal Card:

Current Card:

Special Card (if

any):

Cards with incomplete

fillage

Card with incomplete

fillage

Tubing Leakage &

2.1 SPM


bfpd


bfpd


17

SPM


18/55

Well History:

Well went on WOJ for Tubing leakage on 5th September 2010 and was

put on RPc on 24th September 2010.

Vibration was observed at well-site therefore, No: of counterweights

were changed from 2 to 4 on 13th Oct. 2010.

Skid leveling was done on 28th Oct. 2010.


Check for tubing leakage was recommended on 5th July and was

subsequently confirmed by ONGC from Pressure Build-up test on 9th

July 2010.

SPM increase was recommended on 1st Oct. 2010. It was increased

from 2 to 4 on 8th Oct. 2010


Decreasing trend in FAP is observed.

18


19/55


20/55

Well History:

Rod got stuck-up on 2nd Oct. 2010. HOC was done to release stuck-up on 3rd

Oct. 2010. But, stuck-up could not be released and Well was under WOJ from

29th Oct. 2010 to 14th Nov. 2010. Cards with valve leakage observed after

WOJ. Installation of pump with service valves confirmed from ONGC.


HOC was recommended due to high rod stress and card area on 14th Aug.

2010. HOC was done on 17th Sep. 2010. No change in card shape was

observed after that.


Decreasing trend well test production observed from May 2010 to September

2010.

20


21/55

Well No: SK-73

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 332

(10/14/2010)

Calculated FAP: 0



1

Normal Card:

Current Card:

Special Card (if

any):

Cards varying span Current card Flip cards


bfpd

Current Production:

171.13


21

SPM

SPM


22/55

Well History:

Fluctuating trend in card area and load span was observed and Pulley

was reported to be broken on 8th Sep. 2010.It was repaired on 10th

Sep.

Frequent flip cards were also observed and the unit was repositioned

and balanced on 5th Sep. 2010.

Frequent electrical panel and Motor problems were observed which

can be attributed to Load fluctuations.


Recommended for SPM increase from 6.5 to 8.5 on 28th July. SPM was

increased on 27th August but due to abnormal increase in water cut it was

reverted to 6.5 on 20th Sep. 2010.


Water cut values have been observed to be increasing but oil production is

constant over time.

22


23/55

Well No: SK-78

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 4107

(11/25/2010)




1

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards Current card NIL


bfpd

Current Production:

190.9 bfpd


23

NIL

SPM


24/55

Well History:

NIL


Recommended for SPM increase from 5.5 to 7 on 28th July. SPM was increased

on 2nd August.


Increasing trend in production has been observed since SPM increase.

24


25/55

Well No: SK-79

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 5353

(11/15/2010)




1

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards Current card Cards with Kinks

Average Production: 58.56 bfpd Current Production:

105.5 bfpd


25

SPM


26/55

Well History:

Frequent flip cards due to vibration were observed. HOC was done on 31st

Oct. 2010. No change in card shape observed.


Recommended for SPM increase from 2 to 3 on 26th July. SPM was increased

to 3.2 on 12th August 2010.


Kinks in cards still observed. Card span is fluctuating and the well also has

flumping tendency.

26


27/55

Well No: SK-085 (Deviated)

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 2110.69

(25/11/2010)




1

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards

Current card

Card before well shut

down


bfpd

Current Production: 12.56 bfpd

(22.11.10)


27


28/55

28


29/55

Well History:

Rod part on 1st July. Well was put on RPC on 19th August after workover. High

rodstress observed and occasional kink seen in the card. Sudden decrease in

Load span is seen from 4th November. The well has shown no production in

November and is shutdown for workover by ONGC on 26th November.


Reduce the pump size and redesign rod string.

No build-up observed after recent water circulation. The well

has been taken for WOJ.


Deep rod part suspected, due to sudden decrease in load span.

29


30/55

Well No: SK-86

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 4541

(10/19/2010)




1

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards with gas

interference

Current card with gas

interference

Average Production: 18 bfpd Current Production:

16.9 bfpd


30

NIL


31/55

Well History:

Nomajor interventions occurred in this well. Well is running under stable load

& stress values limits.


Recommended for SPM decrease from 6 to 4 and stroke length increase from

86in to 120in from 15th October to reduce the gas interference tendency.

Action still pending.


Gas interference is observed in the cards right from the start of the project.

31


32/55

Well No: SK-92

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 1515

(11/24/2010)


DF Multiplier (Upstroke): 2.4


0.8

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards Current card Card s before & after SPM

decr ease


22.83 bfpd


32

SPM


33/55

Well History:




Recommended for SPM decrease from 3.5 to 2.5 on 2nd Nov 2010. SPM was

decreased to 1.8 on 16th November 2010. Fillage in cards improved a lot after

SPM reduction but production has also gone down. Reason might decreasing

SPM lower than what was recommended (2.5).


Test data of October and august is highly misleading.

Well No: SK-093 (Vertical)

33


34/55

Date: 26th Nov 2010





Average Card Area:


Echometer FAP:

1500(15/11/2010)

Calculated FAP: 179



6

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards Current card

Cards with Kinks


3.80bfpd


34


35/55

Well History:

High rod stresses were observed since 14th July. Distorted cards were

observed since 3rd August. After placing dead weights on the unit, better

cards were observed. HOC was carried out on well on 28th August, the

decrease in load values was observed just for 3 days. The load started

increasing from 31st August. The loads are now stable in a range of 7000 to

15000lbs.


HOC was recommended for high rod stress and increasing loads.

Vibration check to check for distorted cards.


It has been observed that after placing of dead weights the vibrations have

reduced and better cards were observed. But recently cards with kinks are

obtained frequently. The well goes on Lo-Lo Load shut down. Vibration at the

start of upstroke has been confirmed from ONGC, ALS Dept.

35


36/55

Well No: SK-95(Deviated Profile)

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 1345

(11/24/2010)




1

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards after WOJ Current card after WOJ Card s showing rod part

Average Production: Cant be defined

as Nov. data is the first test data after project

commences.

Current Production:

15.07 bfpd


36


37/55

Well History:

Rod part happened at the very start of project on 20 June. Well was under

workover since then and came back to normal operation on 26 October 2010.


Recommendation for reducing the pump size and redesigning the rod string

from 3rd Nov 2010.


Continuously very high stress level is observed in rod string especially in 5/8

rod. May be chances of rod part again.

37


38/55

Well No: SK-102

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 4693

(10/21/2010)




1

Normal Card:

Current Card:

Special Card (if

any):


Average Production: 45 bfpd till

Sep; increasing trend after that

Current Production:

139.4 bfpd


38

NIL

SPM

SPM


39/55

Well History:




Recommended for SPM increase to 4 from 27 July. SPM was increased in

steps from 1.8 to 2.25 to 2.75 and finally 4 as there was probability of sand

incursion.

Well has been consistently giving increased production as and when SPM is

increased as evident from the production trend.


NA

39


40/55

Well No: SK-121(deviated)

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: -162

(10/06/2010)

Calculated FAP: 294



1

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards showing TV

leakge

Current card showing TV

leakage

Card s with loss of load

during UPstroke


16.41 bfpd


40


41/55

Well History:

HOC was done in the very beginning of the project as very high load and

stress values were observed. HOC was done subsequently but few days after

the HOC load and stress values again reached to the same level.


Recommendation for valve check has been going since the start of the

project as it was very evident from the cards(TV leakage behavior).

Recommendation for reducing the pump size and redesigning the rod string

from 3rd Nov 2010


Continuously very high stress level is observed in rod string especially in 5/8

rod. May be chances of rod part.

41


42/55

Well No: SK-122

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 4603

(10/21/2010)




0.5

Normal Card:

Current Card:

Special Card (if

any):

Normal Cards Current card Distorted Cards

due to unit vibration


130.2 bfpd


42

SPM


43/55

Well History:

SPM increased to 6.4 from 5.2 on 13th Aug 2010 and unit replaced.

HOC done on 9th Oct 2010 as frequency of distorted cards increased. Reason

inferred was downhole friction.

Skid changed on 13th Oct 2010 to reduce unit vibrations.

Chemical pushing job is done every month in this well by ONGC.


Recommendation for SPM increase on 26th july. SPM was increased to 6.4

from 5.2 on 13 Aug.

Increase in production observed after SPM increase. Well is behaving very

stable and giving consistent production.

Recommendation for unit vibration check and balancing the unit is been

given as of now as more frequently distorted cards are observed. Action

pending.


Frequent observation of distorted cards due to unit vibrations. Also seen

physically in the field, vibrations in the unit.

43


44/55

Well No: SK-124 (Deviated)

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 1037

(10/11/10)




1

Normal Card:

Current Card:

Special Card (if

any):


Average Production: 22.22 bfpd

Current Production:

14.04 bfpd


44

NIL


45/55

Well History:

Belt and Gear box problems were observed and repaired.


Recommended for HOC due to high rod stress. HOC was done on 10th June

2010. No change in rod stresses was observed after that. It was subsequently

recommended for resize the pump and redesign the rod string on 3rd Nov.

2010. Action is still pending.


NIL

45


46/55

Well No: SK-128

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 1893

(10/14/10)


DF Multiplier (Upstroke): 1.8


2.2

Normal Card:

Current Card:

Special Card (if

any):


Average Production: 15.65 bfpd Current Production: 0

bfpd


46

NIL


47/55

Well History:

NIL


The well was recommended to be tested on Independent flow line. But

production rate decreased on independent flow line. It Might be a case of

high back pressure.


NIL

47


48/55

Well No: SK-135

Date: 19th Nov 2010





Average Card Area:

Current Card Area:

Echometer FAP: 2061

(10/21/2010)




0.9

Normal Card:

Current Card:

Special Card (if

any):

Cards with worn out

pump

Card with worn out pump Cards with gas lock

behaviour


till june

Continuous decline

after that

Current Production: Nil as on

November

48


49/55


49


50/55

Well History:

From the production history graph shown above, it is clearly seen the rapid

production decline from June onwards. Well has been producing lot of gas.


After observing gas lock tendency in cards; it was recommended to decrease

the SPM from 4.2 to 2.1. There was little bit improvement in cards but

production still not observed as such.


After doing pump reseating recently, production is observed in the well

site, but no production is observed in the test separator as told by

ONGC personnel.

50


51/55

Well No: SK-136

Date: 20th Nov 2010





Average Card Area:

Current Card Area:

Echometer FAP: 332

(10/14/2010)

Calculated FAP: 0



2

Well is currently shutdown since no production is observed &

polished rod getting heated.

Normal Card:

Current Card:

Special Card (if

any):

Cards with incomplete

fillage

Well not running

Cards after SPM reduction


till june

Continuous decline

after that

51


52/55

Current Production: Nil as on

November


52


53/55

Well History:

From the production history graph shown above, it is clearly seen the rapid

production decline from June onwards. Well has been producing lot of gas.


Recommendation for SPM reduction was given keeping in view to increase

the pump fillage, after that shape of the card changed as shown above in the

case of special card. Production was still not observed and polished rod was

getting heated. So it was decided to shut down the well.


Before SPM increase it was observed that fillage increases by 40-50% after

the well comes from its idle time (15mins). But those improved fillage cards

last for just 5 mins; after that again fillage goes back to 25%(as shown in

normal cards).

53


54/55

Well No: SK-153

Date: 26th Nov 2010





Average Card Area:


Echometer FAP: 5771

(10/4/10)



1

Normal Card:

Current Card:

Special Card (if

any):



79.12 bfpd


54

NIL


55/55

Well History:

NIL


NIL


Fluid has a water cut of 98%. As reported by ONGC, the well produces fluid

through the annulus while it is pumped and no production is observed from

the well otherwise.

analysis report (louis ray visit)

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