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CEMENTING COLLAR
Description Page
ODV Stage Cementing Collar Mechanical Type (two stage) 1
CHTMP Cementing Head Two Plug / Multiple Plugs Type 5
ODVX Stage Cementing Collar Hydraulic Type (two stage) 7
TABLE OF CONTENT
ODV Stage Cementing CollarMechanical Type (two stage)
ODV Stage Cementing Collar is used to effectively cement uppersections of the casing string after displacing cement around thelower section.
The Multiple Stage Cementing Collar provides a means of openingand closing port holes for cement displacement and positivecontainment of the cement after displacement. All internal parts areeasily drilled, and are firmly held from rotating during drilling.
The port closing sleeve is positively locked in position aftercementing.
After running the Collar to setting depth, the lower section iscemented in the conventional manner except the cement isdisplaced with the flexible cementing plug furnished with the collar.This is bumped against the shut- off Baffle.
A slight pressure build-up of 300-400 P.S.I. will assure plug is seatedin Baffle.
The port holes in the Multiple Stage Cementing Collar are opened fordoing the second stage by dropping the trip bomb and applyingapproximately 800-1000 P.S.I. pressure.
The second stage is displaced with the closing plug which is alsofurnished with the Tool. When the closing plug bumps approximately800-1000 P.S.I. pressure will close the port holes.
ODV StageCementing Collar1
ODV Stage Cementing CollarMechanical Type (two stage)Applications & Features
• ODV Stage Cementing Collar can be made from material grades up to135,000 psi minimum yield, including material suitable for sour gas service.
• Common steel grades i.e. J-55, K-55, L-80, P-110 form standardmanufacturing steel grades, however other grades are available uponrequest.
• API & Premium connections are available upon request.
• No welds are used on any portion of the tool.
• The reduced length of the tool minimize the effectof bendingstresses.
• The seals providing internal and external pressure integrity are housed in thestage collar body and remain stationary throughout operation, minimizingchances of their being damaged.
• The pressure-relief design prevents fluid trapping and compressionbetween the opening device and the closing plug during the closingphase of the tool's operation.
• The closing sleeve is held in the closed position by an internal lock ring.
• Both the opening and closing sleeves lock against rotation for easy drill-out.
• A minimum amount of aluminum and rubber are the only materialsencountered during drill-out
2
ODV Stage Cementing CollarMechanical Type (two stage)
Two-Stage Cementing with MDV Stage Cementing Collar using:
I. First-Stage Sealing Plug
II. Free-Fall Opening Device, and
III. Closing Plug
• Float shoe and Float collar along with the MDV Stage Cementing Collar, are
installed in the casing string and the casing is run to bottom.
• Circulation is established and first-stage cement is mixed and pumped. The
first-stage sealing plug is launched and cement is displaced. At the
• conclusion of displacement, the first-stage sealing plug lands and effects a
seal against the Float collar. No baffle is required!
• The free-fall opening device is dropped and allowed to gravitate to position.
Pressure is applied to the casing and the stage collar is opened.
• Circulation is established and second-stage cement is mixed and pumped.
• The closing plug is dropped and cement is displaced.
• At the conclusion of displacement, the closing plug lands and effects a seal in
the stage collar. Pressure is applied to the casing and the stage collar is closed.
3
Nominal Casing
Size (in.)
MaximumDiameter
Wt. Range(Lbs.)
Drill-OutI.D. (in.)
Overall Length
(in.)
Opening ClosingOpening Seat I.D.
(in.)
Closing Seat I.D.
(in.)Pressure
(PSI)Force(Lbs.)
Pressure(PSI)
Force(Lbs.)
5 1/2 6.625
14.0–17.0 4.892
27.38 1200 32,000 1500 39,000 3.750 4.06220.0–23.0 4.810
6 5/8 7.875 20.0–28.0 6.030 28.50 1200 45,000 1500 57,000 4.625 5.000
7 8.275
17.0–23.0 6.276
28.50 1200 49,000 1500 62,000 4.625 5.12526.0–29.0 6.200
32.0–38.0 6.004
9 5/8 11.125
32.3–40.0 8.921
29.50 1000 78,000 1200 94,000 7.000 7.75043.5–53.5 8.600
10 3/4 12.375 40.5–45.5 9.950 30.88 1000 100,000 1200 120,000 8.000 8.750
13 3/8 15.000
54.5–61.0 12.515
30.88 900 133,000 1000 148,000 10.500 11.25068.0–72.0 12.415
16 18.000
65.0 15.125
32.38 500 90,000 700 126,000 13.125 14.00075.0–84.0 14.880
ODV Stage Cementing CollarMechanical Type (two stage)
Specification Tables
4
CHTMP Cementing Head is used for cementing the annular space between casing andwell bore during 2nd stage of well construction cycle. The cementing head is installed toconnect the pumps of the cementing trucks to the casing string and provides access forinsertion & launching of cementing plugs.
CHTMP Cementing heads are available in sizes 5 1/2" to 16", for working pressure of2,000 to 10,000 psi. Cementing head sizes & working pressures are inversely related.
Cementing heads could be of single plug or double plug types. The double plugcementing head has three valve manifold and two plunger assembly.
Cementing Head Caps are “Acme” threaded or quick lock type and fitted with swivelchain assembly.
Cementing heads are manufactured from solid forged rounds of alloy steels AISI4130/4140/ 4145 or equivalent material and are fully heat treated.
Applications & Features:
• Top Plug passing indication provided.• Easy loading of plugs.• Manifold with lo-torque plug valve.• Plug container holds one or two plugs, the top plug and the
bottom plug.• Double plug container has a three in-torque valve manifold and
two plunger assembly.• Cap is available with ACME thread connection and lifting chain.• Adapters are available with all casing threads and buttress
threads.• Standard adapters have a 6 inch Tong space with thread
protectors.
5
Cementing HeadTwo Plug / Multiple Plugs Type
CEMENTING HEAD (DOUBLE PLUG)
HORIZONTAL INLET
CEMENTING HEAD (SINGLE PLUG)
HORIZONTAL INLET
6
Available Casing Sizes (in.) All casing weight range are available.
5 1/2 7 7.5/8 8.5/8 9.5/8 10.3/4 11.3/4 13.3/8 16 18.5/8 20
Cementing HeadTwo Plug / Multiple Plugs Type
ODVX Hydraulic Stage Cementing Collar is a field-proven stage tool thatmeets the challenges of cementing holes at any angle with a hydraulicallyopened port system.
ODVX is specifically designed for horizontal sections / formations, themultistage cementing tool can be placed anywhere in the casing string.
ODVX is PDC-drillable and field-adjustable shear pins system.
When the first-stage shutoff plug lands on the shutoff baffle, increasedinternal casing pressure hydraulically opens the stage tool, enablingcirculation and then second-stage cement to pass though the ports into theannulus above the tool.
The closing plug when released, wipes the casing ID clean of cement beforebumping on a closing seat.
Increased pressure shifts the closing seat downward, releasing locking lugsand closing the tool. A snap ring locks the sleeve in position, ensuring thestage tool remains locked.
7
ODVX Stage Cementing CollarHydraulic Type (two stage)
• ODVX Stage Cementing Collar can be made from material grades up to
135,000 psi minimum yield, including material suitable for sour gas service.
• Common steel grades i.e. J-55, K-55, L-80, P-110 form standard manufacturing
steel grades, how ever other grades are available upon request.
• API & Premium connections are available upon request.
• No welds are used on any portion of the tool.
• The ODVX could be used successfully as secondary stage when placed above
External Casing Inflatable Packers.
• The seals providing internal and external pressure integrity are housed in the
stage collar body and remain stationary throughout operation, minimizing
chances of their being damaged.
• The pressure-relief design prevents fluid trapping and compression between
the opening device and the closing plug during the closing phase of the tool's
operation.
• The closing sleeve is held in the closed position by an internal lock ring. Both
the opening and closing sleeves lock against rotation for easy drillout.
• A minimum amount of aluminum and rubber are the only materials
encountered during drill-out.8
ODVX Stage Cementing CollarHydraulic Type (two stage)
Two-Stage Cementing with ODVX Stage Cementing Collar using:
I. Baffle Plate
II. Shut-off Plug, and
III. Closing Plug
Sequence of Events:
• Float shoe along with Baffle Plate and the MDVX Stage Cementing
• Collar, are installed in the casing string and the casing is run to
bottom.
• Circulation is established and first-stage cement is mixed and
pumped.
• When the first-stage shutoff plug lands on the shutoff baffle,
increased internal casing pressure hydraulically opens the stage
tool, enabling circulation and then second-stage cement to pass
though the ports into the annulus above the tool.
• The closing plug when released, wipes the casing ID clean of
cement before bumping on a closing seat.
• Increased pressure shifts the closing seat downward, releasing
locking lugs and closing the tool. A snap ring locks the sleeve in
position, ensuring the stage tool remains locked.
ODVX Stage Cementing CollarHydraulic Type (two stage)
9
ODVX Stage Cementing CollarHydraulic Type (two stage)
Specification Tables
10
Size(in.) Grade
Wt. Range(Lbs.)
Max. O.D.
Max. Drill-Out
I.D.
OverallLength (in.)
Hydraulic Sleeve
I.D.(in.)
Closing Seat I.D.
(in.)
Opening Pressure(psi/bar)
BTC
Per Screw Range
5-1/2
L80 14.0 to 17.0
6.625
4.897
31.5 3.000 4.06244030.3
880 to 3,52060.6 to 242.7
L80 15.5 to 20.0 4.835
P110 17.0 to 23.0 4.777
7
L80 20.0 to 26.0
8.200
6.341
32.5 3.750 5.00034023.4
680 to 3,40046.9 to 234.0
L80
26.0 to 32.0
6.161
P110 6.161
9-5/8
L80 32.3 to 40.0
11.125
8.855
38.8 6.125 7.75060041.4
1,200 to 3,60082.8 to 248.2
L80 40.0 to 47.0 8.689
P110 43.5 to 53.5 8.609
10-3/4
L80 40.5 to 51.0
12.312
9.904
38.8 7.250 8.87563043.4
1,260 to 3,78086.8 to 260.6P110 51.0 to 60.7 9.704
13-3/8
L80
61.0 to 72.0 15.000
12.375
38.8 9.250 11.00050034.5
1,000 to 3,00069.0 to 207.0P110 12.375
