Dd2 presentation
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DD2 Presentation:
Well: Tupilco 75 DLocation: MCA-MXS (Villahermosa, TAB)Client: GSM Date: December 9th, 2010
Eloy Giles.
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Outline• Well Location• Well Challenges
– Anti-Collition (Spider Plot + TC Plot)– Geological Faults
• Well Objectives– Well Plan– Well Plots
• BHA Designs• Hydraulics• Torque & Drag• Results
– Plan VS Real
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Well Location
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Surface Coordinates:
N 18° 21’ 13.91100”
W 93° 20’ 48.2266”
NAD27 UTM Zone 15N
RKB Elev: 13.43 mts
Ground Level Elev: 7.33 mts
Referenced to True North
Mag. Declination: 2.957°
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Challenges
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• Anti-Collition– Tupilco 85 ct-to-ct distance of 11.31 mts @ surface and up to 180 mts MD– Field with many BLIND vertical wells and with OSF less than 1
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Challenges
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• Geological Faults– Primary Objective (A18-
A10) delimited by geological faults. @ 2372 TVD.
– Needed to drill minimizing Ct-to-Ct separation from Plan
– Holding a Max angle of 51 deg, Inclination. (Hole Cleaning!)
L.TUP-75D
T-84D
T-2001
F
L.TUP-75D
T-84D
T-2001
F
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Well Objectives
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• Type “J” Well, drilled in 2 stages, 12 ¼” and 8 ½”– Last Well drilled with this particular client, they were introducing their own DD
Services. Important to demonstrate Schlumberger’s superior performance.
• 12 ¼” Section (150 mts – 1050 mts MD):– Vertical from 150 mts MD to 180 mts MD and then nudge (4° Inc, 272.7° Az, 1°
DLS) to reduce AC Risks with nearby BLIND wells.– After nudge (@300 mts MD), drop inclination to 0 deg, and drill vertical again up to
1050 mts MD for Casing Depth
• 8 1/2” Section (1050 mts – 1050 mts MD):– Drill vertical from 1050 mts MD up to 1630 mts MD.– KOP @ 1630 mts building a max. Inclination of 50.04°, 272.78° AZ, 1.9° DLS. – From 2420 mts MD hold tangent section to TD, VS Reached: 1132 mts
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Well Plan
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Well Plots
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BHA Designs: 12 ¼” Stage
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Hydraulics: 12 ¼” Stage
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Nozzle DetailsBit
Type: MilledToothHole Size: in 12.250
TFA: in2 1.114Nozzles: 1/32 in 3 x 22
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BHA Designs: 8 ½” Stage
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Hydraulics: 8 ½” Stage
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Torque & Drag
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• Approach
– Reamed each Joint 2 times @ 40 srpm, continuously monitoring S&V.
– Every 6 joints pumped a “Dispersing Pill””to create turbulence, followed by a “Viscous Pill” to carry cuttings to surface.
– Short Trip from Mid-Curve to Notch. Then a 2nd from TD to beginning of Curve. Then POOH.
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Results:
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• Ended 2 Days ahead of Drill Plan• No SQ incidents related to Stuck Pipe• Delimited Objectives Not Compromised• Client recognized SLB’s Value & Expertise