advanced well construction techniques utilizing solid expandable technologies: extreme stents for...
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Advanced Well Construction Techniques Utilizing Solid Expandable Technologies (SET®)
Extreme Stents for Oil & Gas wells
Pumps & Pipes 1 12 Nov 2007
Mark HollandNA Sales Mgr
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Overview
• Intro • Expandable casing statistics• Case Histories• What’s new
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On January 10, 1901 the famous Lucas Gusher blew in. Oil sprayed over 100 feet above the derrick for nine days until the well was capped.
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Conventional Well Design
Several to many casing strings in a “tapered”
configuration
Each one decreases “diametric efficiency” by
~20%
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What and Where is Solid Expandable Technology? (SET®)
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Operating Envelope for Expandable Casing
Inclination: 100o from vertical
Temperature: 400o F
Mud Weight: 19.8# / gallon
Depth: 28,750 ft
Hydrostatic: 23,300 psi
Length: 6, 867 ft
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Cumulative Installation Footage
As of November 10, 2007798 Installations
100,000
200,000
300,000
400,000
500,000
600,000
700,000
No
v-9
9
Ma
r-0
0
Au
g-0
0
Ja
n-0
1
Ju
n-0
1
No
v-0
1
Ap
r-0
2
Se
p-0
2
Fe
b-0
3
Ju
l-0
3
De
c-0
3
Ma
y-0
4
Oc
t-0
4
Ma
r-0
5
Au
g-0
5
De
c-0
5
Ma
y-0
6
Oc
t-0
6
Ma
r-0
7
Len
gth
(in
fee
t) 238,535 m775,120 ft
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775,000 ft equals …
Traveling from Houston to Goliad
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Opportunity vs. Need
9-5/8"
7-5/8"
Decision Point
Hole Size Preservation
Hole Size Survival
Opportunity
Need
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Economics
Reduced drilling time from 140 to 48 days
Opportunity (planned)
Need (contingency)
Planned Expandable Key OffsetsM
easu
red
De
pth
3000
7000
11000
15000
19000
23000
27000
TechLimit
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Case Histories
HPHT Well – Deep Shelf GOM
UD High Pressure – DW GOM
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HP/HT Well in GOM – 20’ Water Depth
Trouble ZoneMajor pressure regression - Losses
SolutionInstalled 9-5/8" x 11-3/4" expandable
ValueDrilled and evaluated virgin formation with sufficient hole size
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High Pressure Well in GOM – 3400’ Water Depth
Trouble Zone Low Margin Drilling in a
DW GOM wellSolution
Installed 7-5/8” x 9-3/8”Preserve hole size to TD
ValueDrilled and evaluated new formations in a frontier environment
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MonoDiameter™ and What is it?
The industry demands it: More challenging drilling environments Current available technology is limited Improved ROI Advanced well construction
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MonoDiameter™ Defined
Provide successive uniform ID over multiple liners
MonoDiameter™10.4" ID
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Successful Field Appraisal Well
Enventure was operator Safely completed drilling
program Followed standard
operating procedures Well information
Drilled in Oklahoma Real-life well Completed April 2007
Successful installation First of its kind Continuation possible
DNV Certification
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Conclusions – What does this mean to us all?
ERD applications “One size fits all” Reduces the Carbon
Footprint of Drilling Ops Drill a more efficient well
Less cuttings, mud, cement, steel, rig size, etc
Is there a “Depth Limit”?