omni vdr brief copy
Post on 22-Nov-2014
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This Development well is the first in Malaysia to utilize the new generation of drilling risk mitigation tools from OMNI
OMNI Versatile Drilling Reamer (VDR) was installed at top of BHA replacing the conventional fixed blade stabilizer. Carefully selected drilling parameters and revised drilling practices resulted in drilling this highly deviated well efficiently and with reduced drilling risk. Drill pipe was pulled to surface on elevators and casing was run smoothly according to plan. Best Practice summary: Mechanical Risk Mitigation:
• OMNI VDR with top PDC cutters
• Back reaming 1x before every connection while drilling
• Back reaming 2x before every connection at sections with high torque while drilling
• OMNI VDR placed at top of BHA in case of mechanical obstruction while pulling out of hole
Hole Cleaning:
• OMNI VDR with TCI on blades and low side utilized
• 5” Hydroclean drill pipe utilized
• Circulation maintained at 1000GPM
• Circulation 5~7 times bottom ups before POOH
• RPM maintained at 180 Mud System:
• SBM at 10.2 ppg for the entire section
Best Practice Bulletin
New Technology for Improved Hole Condition
OMNI VDR in Development Wells
.
OMNI VDR Versatile Drilling
Reamer
5” HWDP
Accelerator
5” HWDP
Jar
5” HWDP
Crossover
12” OMNI VDR
8” NMDC
MWD
Inline Flex Collar
Short Hop Receiver
Power Drive RSS PD900
12 ¼” RSS PDC Bit
Top PDC cutter
TCI on Blade & low side
www.omnioiltech.com asia@omnioiltech.com
9 5/8" Casing - P/up & Slack off Weight Vs Joint Number
0
50
100
150
200
250
136
130
124
118
112
106
100
94
88
82
76
70
64
58
52
46
40
34
28
22
Joint Number
P/up &
Slack off W
eight (klbs)
P/up S/O
www.omnioiltech.com
Perfect hole condition was achieved with torque and drag within acceptable limits String was pulled out of hole on elevators smoothly Casing was run efficiently according to plan
OMNI VDR equipped with Tungsten Carbide Inserts (TCI) on blade OD has contributed to improved hole condition while drilling and tripping OMNI VDR equipped with PDC cutters and placed near the top of BHA to facilitate back reaming while drilling. This offered a valuable risk mitigation tool for clearing obstructions while pulling out of hole
Dec-07
12 1/4" Off-Bottom Torque
2200
2300
2400
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2800
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0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Off-Bottom Torque (k ft/lbs)
Depth (ft)
FF 0.10 FF 0.20 FF 0.30 FF 0.40
FF 0.50 OBT Break-Over Torque
12 1/4" Drilling Hook-Loads
2200
2300
2400
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70 80 90 100 110 120 130 140 150 160 170 180 190 200 210
Hook-Load (k/lbs)
Depth (ft)
S/O 0.10 S/O 0.20 S/O 0.30 S/O 0.40 S/O 0.50
ROB Weight P/U 0.10 P/U 0.20 P/U 0.30 P/U 0.40
P/U 0.50 S/O Wt. P/U Wt. ROT Wt.
asia@omnioiltech.com
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