AADE Colony Wash Horizontal Drlg (Chesap[...]

2010 AADE Operators Symposium
Chesapeake Energy – Colony Wash Horizontals
Performance Management
Craig Staley, Drilling Engineer – Anadarko Basin
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Colony Wash – Overview
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Colony Wash – Overview
● Highlights
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1st Spud November 2006
5 rigs currently; 8 rigs by May 2010
71 Wells
12,500’ TVD 17,000’ MD
56 Days - $4.27MM
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Colony Wash – Overview
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Colony Wash – Overview
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Colony Wash – Rigs
● Rigs
– 11 Different Rigs have been in the fleet
 3 rigs have drilled 15 or more wells each
(53 Total ~ 70%)
● Rig Inventory
– Diesel Electric
– 1000 HP Draw-works
– 750M lb Derricks
– Top Drives
– 1600 HP Pumps
– Iron Roughnecks
Nomac 16 – 20 Wells
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Colony Wash – Well Design
● 1st Edition:
63 Days
$5.1MM
– 13 3/8” Surface 500’
– 9 5/8” Inter. 5,500’
– 7” Curve 13,000’
– 4 1/2” Prod. 17,000’ (WBM, Liner-Tieback)
● 2nd Edition:
66 Days
$5.6MM
– 13 3/8” Surface 1500’
– 9 5/8” Inter. 12,000’
– 4 1/2” Prod. 17,000’ (OBM)
● 3rd Edition:
64 Days
$4.9MM
– 10 3/4” Surface 1500’
– 7 5/8” Inter. 12,000’
– 4 1/2” Prod. 17,000’
● 4th Edition
53 Days
$4.1MM
– 9 5/8” Surface 1500’
– 7” Inter. 12,000’
– 4 1/2” Prod. 17,000’
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HOLE SECTIONS
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Colony Wash – Surface Hole
● Spud to Drill Out Float Equipment
● Surface Casing Waiver to OCC (BTW 300’ – 500’)
● 12 1/4” hole to 1,500’
● Drill with 117 IADC roller cone bit
● 9 5/8” 40 J55 LTC
● Hole Section Hours
Average = 59
Technical Limit = 30
● Drilling Hours
Average = 16
Technical Limit = 8
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Colony Wash – Intermediate Hole
● Drill Out Surface to FIT
● Drill Out 8 3/4” to depth of 100’ above KOP (12,000’)
● Bits – PDC’s
– Drill Out:
5 blades with 5/8” (16mm)
 Footage: 6140’
– Follow Up:
ROP: 78.3 fph
6 blades with 1/2” (13MM)
 Footage: 2390’
ROP: 35.9 fph
– Bit Engineers have started to crack the code, 1st one bit interval!
 Footage: 10409’
ROP: 50 fph [Oklahoma State Record STC MSi516]
» Lesson Learned: 66.5 fph
● Packed BHA
● 7” 26 HC-P110 LTC
● Hole Section Hours
● Drilling Hours
Average = 340
Average = 219
Technical Limit = 270
Technical Limit = 161
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Colony Wash – Intermediate Hole (Cont..)
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Colony Wash – Pilot Hole
● FIT to PU Directional Tools
● 60% have Pilot Holes
● Drill 6 1/8” Hole (12,000’ – 13,500’)
● PDC Drillable
– 60% 2 bits 22.5% 3 bits 15% 4 bits or more
– Average ROP = 18 fph
● Packed BHA
● MW 11.5 ppg – 12.5 ppg OBM
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Colony Wash – Pilot Hole (Cont.)
● Set open hole whipstock
– Improved Mill Design increasing ROP 55%
 1st Mills
 2nd Mills
– Whipstock = 25 Hours
● Hole Section Hours
● Drilling Hours
FasTrack ROP = 1.79 fph
HF ROP = 2.77 fph
vs.
Cement Plug = 70 Hours
Average = 114
Average = 52
Technical Limit = 67
Technical Limit = 29
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Colony Wash – Curve
● PU Tools to Landing Point
● Drill 6 1/8” Hole
● Bit Selection
– Insert to 50○ -60○ , PDC
– PDC Evolution
– 5 at start of play, 3 currently (280 Hours vs. 200 Hours)
● BHA
– 2.1○ Motor
 78% Sliding
» ROP = 7.6 fph
 22% Rotating
» ROP = 9.9 fph
● MW 11.5 ppg – 12.5 ppg OBM
● Hole Section Hours
Average = 244
● Drilling Hours
Average = 128
TL = 107
TL = 57
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Colony Wash – Lateral
● Landing Point to Casing Operations
● Target 5’ Cylinder
● Bit Selection
– Offset Data, Geology
 Number of Bits 2 – 23
» 5 - 9 blade PDC’s
» ‘627’ insert bits
● BHA
– 1.5○ Motor
 68% Time Rotating
» ROP = 21.2 fph
 32% Time Sliding
» ROP = 7.9 fph
– Rotary Steerable
● Hole Section Hours
● Drilling Hours
Average = 587
Average = 313
Technical Limit = 230
Technical Limit = 112
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Colony Wash – Time Summary
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Colony Wash – Time Summary
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Colony Wash – Summary
●Competitive Environment
●Team Effort
●Data Management
●Direction
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Questions
Chesapeake Energy – Colony Wash Horizontals
Performance Management
Craig Staley, Drilling Engineer – Anadarko Basin
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