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7'' Liner CMT Calculation

This document summarizes the calculations for a 7" liner cementing job. It details the volumes of casing, drill pipe, cement, and displacement required. It also calculates the pressures inside and outside the casing to land the plug. The total cement volume needed is 153.9 cubic feet or 864.1 sacks of cement. The total displacement volume is 341.4012 barrels. The differential pressure to land the plug is 1442.3 psi.

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Eslam Atif Azkol
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901 views1 page

7'' Liner CMT Calculation

This document summarizes the calculations for a 7" liner cementing job. It details the volumes of casing, drill pipe, cement, and displacement required. It also calculates the pressures inside and outside the casing to land the plug. The total cement volume needed is 153.9 cubic feet or 864.1 sacks of cement. The total displacement volume is 341.4012 barrels. The differential pressure to land the plug is 1442.3 psi.

Uploaded by

Eslam Atif Azkol
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLS, PDF, TXT or read online on Scribd
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7" LINER CEMENTING JOB

WELLNAME : Q.KAL-C4 CAP OF CASING 9 5/8 0.07321 ** VOL. OF CALIPER "6 ARM" ( cft ) = 610
RIG NAME: EDC-40 CAP OF CASING 7" 0.03714 ** Spacer vol. 100 bbl WT,ppg = 11.5
DATE : 19/4/2011 CAP OF DRILL PIP(G) 0.0173
MUD WT.= 10.7 CAP OF DRILL PIP(s) 0.01707
SHOE JOINT= 82.38 VOL(CASING&HOLE) 0.02259
OVER LAP = 227.41 VOL(CASING&CASING) 0.02561
OVER LINER= 200 VOL(CASING&DRILL PIP) 0.04892
CALCULATIONS CEMENT VOLUME:-
O.H.V= 1.2 610 * 0.1781 = 130.4 BBL
SH.TRACK= 82.38 * 0.03714 = 3.1 BBL
OVER LAP= 227.41 * 0.02561 = 5.8 BBL
C.A.LINER= 200 * 0.07321 = 14.6 BBL H.O.Spacer
TOTAL= 153.9 = 864.1 cft 7429.1
CEMENT WT. = 16 PPG H.O.Cmt
NO OF SK= 864.1 / 1.512 = 571.5 SKS 9473.3
MIXING WATER= 571.5 * 5.132 = 69.8 BBL 9772.59
SLILCA S-8 571.5 * 0.35 = 18802.0 LB
FP-L9 571.5 * 0.04 = 22.9 GL 227.41
BJ-2000 571.5 * 0.2 = 114.3 GL 10000
FL-45LS 571.5 * 0.25 = 142.9 GL
CD-31LS 571.5 * 0.5 = 285.7 GL
R-8L 571.5 * 0.1 = 57.1 Ibs
DIS LINER
DISPLACEMENT= 4640.03

1-Casing= 4640.03 * 0.03714 = 172.3 BBL H&C


2-D.p=G 3678.89 * 0.0173 = 63.6 BBL 4495
2-D.p=S 6176.08 * 0.01707 = 105.4 BBL
TOTAL = 341.4012 BBL
PRESSURE TO LAND PLUG=
1-HEIGHT O.C.CAP = 14.642 / 0.04892 = 299.3 FT
2-HEIGHT.O.SPACER 100 / 0.04892 = 2044.2 FT
OUT SIDE PRESSURE:-
1-OH&OVERLAP= 4174.0 PSI
2-CAP CEMENT= PSI 14412.62
3-SPACER= 1222.4 PSI
4-MUD= 4133.6 PSI
IN SIDE PRESSURE:-
1-CEMENT(SH.J)= 68.5 PSI 82.38
2-MUD= 8019.2 PSI
DIFFERENTIAL PRESSURE= 1442.3 PSI
14495

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