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161277510.xls.ms_office MITCHELL ENGINEERING PROGRAMS

COPYRIGHT 1990 MITCHELL ENGINEERING, PO BOX 1492. GOLDEN, CO, 80402, USA (303) 273 3744

IDEAL KICK REMOVALDRILL HOLE DATA

LAST CASING DEPTH 5,000 FT

BIT OD 12.25 INCH

DRILLING DEPTH 8,000 FT

MUD WEIGHT 14.3

DRILL STRING DATA

BHA LENGTH 600 FT

BHA OD 8 INCHBHA ID 3 INCH

DRILL PIPE LENGTH 7,400 FT

DRILL PIPE OD 5 INCH

DRILL PIPE ID 4.276 INCH

INITIAL KICK DATA

PIT GAIN 30 BBL

CASING PRESSURE 400 PSI

DRILL PIPE PRESSURE 200 PSI

CAPACITIES

DRILL PIPE ANNULUS .1215 BBL/FT

BHA ANNULUS .0836 BBL/FT

INSIDE DRILL PIPE .0178 BBL/FT

INSIDE BHA .0087 BBL/FT

GENERAL KICK DATA

INITIAL KICK LENGTH 358.8 FT

FORMATION PRESSURE 6142.9 PSI

FORMATION GRADIENT 14.8 PPGINITIAL KICK DENSITY 3.6 PPG

INIT. KICK PRES. DROP IN BHA 66.6 PSI

INIT. KICK PRES. DROP IN PIPE 45.8 PSI

INIT. PRES. AT TOP OF KICK 6076.3 PSI

GAS COLUMN FACTOR 32937 UNITS

ANNULUR VOLUME 949.2 BBL

DRILL STRING VOLUME 136.7 BBL

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DRILLER'S METHOD OF REMOVALKICK LOCATION TOP OF TOP OF KICK KICK SURFACE CASING MUD

KICK KICK LENGTH VOLUME PRESSURE SHOE VOLUME

DEPTH PRESSURE PIT GAIN PRESSURE PUMPED

FEET PSI FEET BBL PSI PPG BBL

INITIAL DEPTH 7641 6076 359 30 400 15.8 0

BHA ANNULUS 7593 6042 361 30 402 15.8 4

BHA ANNULUS 7545 6008 363 30 403 15.9 8

BHA ANNULUS 7496 5973 365 31 405 15.9 12

BHA ANNULUS 7448 5939 367 31 406 15.9 15

TOP OF BHA 7400 5905 369 31 408 15.9 19

OPEN HOLE ANNULUS 7160 5670 265 32 351 15.7 47OPEN HOLE ANNULUS 6920 5498 273 33 357 15.7 75

OPEN HOLE ANNULUS 6680 5326 282 34 364 15.7 103

OPEN HOLE ANNULUS 6440 5155 291 35 371 15.7 131

OPEN HOLE ANNULUS 6200 4984 301 37 378 15.8 159

OPEN HOLE ANNULUS 5960 4813 312 38 386 15.8 187

OPEN HOLE ANNULUS 5720 4644 323 39 394 15.8 215

OPEN HOLE ANNULUS 5480 4474 335 41 403 15.9 243

OPEN HOLE ANNULUS 5240 4306 349 42 413 15.9 270

CASING SHOE 5000 4138 363 44 424 15.9 298

CASING ANNULUS 4500 3791 396 48 448 15.1 354CASING ANNULUS 4000 3448 435 53 477 15.1 410

CASING ANNULUS 3500 3112 481 58 512 15.1 466

CASING ANNULUS 3000 2782 538 65 554 15.1 519

CASING ANNULUS 2500 2462 607 74 605 15.1 572

CASING ANNULUS 2000 2155 693 84 669 15.1 622

CASING ANNULUS 1500 1863 800 97 749 15.1 670

CASING ANNULUS 1000 1591 935 114 848 15.1 714

CASING ANNULUS 500 1345 1103 134 974 15.1 754

SURFACE 0 1128 1311 159 1128 15.1 790

EXHAUSTING KICK 1049 127 942 15.1 822

EXHAUSTING KICK 787 96 757 15.1 854

EXHAUSTING KICK 524 64 571 15.1 885

EXHAUSTING KICK 262 32 386 15.1 917

KICK EXHAUSTED 0 0 200 15.1 949

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