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Kill Sheet #1

This document is a kill sheet that provides information for killing a well with a gas kick. It includes formation strength data, current well data including mud weights and casing information, kick data with initial circulating pressure (ICP) of 1275 psi and final circulating pressure (FCP) of 765 psi. It also charts expected pressure drops of 51 psi per step as mud is circulated from the surface to the bit over 1724 pump strokes to kill the well.

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3K views2 pages

Kill Sheet #1

This document is a kill sheet that provides information for killing a well with a gas kick. It includes formation strength data, current well data including mud weights and casing information, kick data with initial circulating pressure (ICP) of 1275 psi and final circulating pressure (FCP) of 765 psi. It also charts expected pressure drops of 51 psi per step as mud is circulated from the surface to the bit over 1724 pump strokes to kill the well.

Uploaded by

Ad Awsd
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Kill Sheet #1

International Well Control Forum DATE :

Surface BOP Vertical Well Kill Sheet (API Field Units) NAME :

FORMATION STRENGTH DATA: CURRENT WELL DATA:

SURFACE LEAK -OFF PRESSURE FROM (A) 1175 psi


FORMATION STRENGTH TEST

(B) 10 ppg CURRENT DRILLING MUD:


MUD DENSITY AT TEST
MAXIMUM ALLOWABLE MUD DENSITY = DENSITY 10 ppg

(A ÷ Shoe TVD ÷ 0.052) + B = (C) 12.5 ppg

INITIAL MAASP = 1150 psi


CASING SHOE DATA:
( C - CURRENT MUD DENSITY) x SHOE T.V. DEPTH x 0.052
MAASP After Kill = psi SIZE 9 5/8 inch
690
M. DEPTH 8,850 feet
( C - Kill MUD DENSITY) x SHOE T.V. DEPTH x 0.052
T.V. DEPTH 8,850 feet
PUMP NO. 1 DISPL. PUMP NO. 2 DISPL.

0.119 bbls / stroke bbls / stroke HOLE DATA:


(PL) DYNAMIC PRESSURE LOSS [psi]
SIZE 8.5 inch
SLOW PUMP
RATE DATA:
PUMP NO. 1 PUMP NO. 2 M. DEPTH 12,400 feet

695
T.V. DEPTH 11,960 feet
40 SPM

SPM

PRE-RECORDED LENGTH CAPACITY VOLUME PUMP STROKES TIME


VOLUME DATA: feet bbls / foot barrels strokes minutes

DRILL PIPE 10850 x 0.01776 = 192.7


VOLUME PUMP STROKES
HEAVY WALL DRILL PIPE 650 x 0.0086 = 5.6 +
PUMP DISPLACEMENT SLOW PUMP RATE
DRILL COLLARS 900 x 0.0077 = 6.9 +

DRILL STRING VOLUME (D) 205.2 bbls (E) 1724 strokes 43 Min

DC x OPEN HOLE 900 x 0.0292 = 26.3


DP / HWDP x OPEN HOLE 2650 x 0.0459 = 121.6 +
OPEN HOLE VOLUME (F) 147.9 bbls 1243 strokes 31 Min

DP x CASING 8850 x 0.0489 = (G) 432.8 + 3637 strokes 91 Min

TOTAL ANNULUS VOLUME (F+G) (H)=


580.7 bbls 4880 strokes 122 Min

TOTAL WELL SYSTEM VOLUME (D+H) = (I)


785.9 bbls 6604 strokes 165 Min

ACTIVE SURFACE VOLUME (J) bbls strokes

TOTAL ACTIVE FLUID SYSTEM (I +J) bbls strokes Dr No SV 04/01


(Field Units)
27-01-2000
International Well Control Forum DATE :

Surface BOP Kill Sheet - Vertical Well (API Field Units) NAME :

KICK DATA :
580 840 20
SIDPP psi SICP psi PIT GAIN barrels

KILL MUD DENSITY (SIDPP ÷ 0.052 ÷ Well Depth TVD) + CURRENT MUD DENSITY

KMD (580 ÷ 0.052 ÷ 11960) + 10 = 11 ppg

INITIAL CIRCULATING DYNAMIC PRESSURE LOSS + SIDPP


PRESSURE 695
................. + ................. =
580 1275 psi
ICP

FINAL CIRCULATING (Kill Mud Weight ÷ Current Mud Weight ) x DYNAMIC PRESSURE LOSS
PRESSURE
FCP (11 ÷ 10) x 695 = 765 psi

1275
ICP - FCP = ................... 765
- ................... 510
= .............. psi

Pressure Drop per 100 stroke from surface to bit


= (ICP - FCP) ÷ E × 100 = (1275 - 765) ÷ 1724 × 100 = 29 psi/100 stk

Pressure Drop per step (one-tenth of strokes to bit)


(ICP - FCP) ÷ 10 = 510 ÷ 10 = 51 psi/step

STROKES PRESSURE
[psi]
0 1275
100 1246
200 1217
300 1188
400 1159
500 1130
600 1101
STATIC & DYNAMIC DRILL PIPE PRESSURE [psi]

700 1072
800 1043
900 1014
1000 985
1100 956
1200 927
1300 898
1400 869
1500 840
1600 811
1700 782
1724 765

STROKES

Dr No SV 04/02 (Field Units) 27-01-2000

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