Drilling Sideways – A Review of Horizontal Well Technology and It’s Domestic Application

The application of horizontal drilling technology to the discovery and productive development of oil reserves has become a frequent… 3A trip includes removing the drill string into the hole, usually for the modification or alteration of gas ….

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Drilling Sideways — A Review of Horizontal Well Technology and Its Domestic Application
Energy Information Administration
Highlights… vii
1. Introduction…1
Definition and Immediate Technical Objective…1
Drilling Methods and Some Associated Hardware…1
Some New Terminology…3
The Essential Economics of Horizontal Drilling…4
The Cost Premium…4
Desired Compensating Benefits…4
2. History of Technology Development and Deployment…7
Halting Steps…7
Early Commercial Horizontal Wells…7
The Recent Growth of Commercial Horizontal Drilling…8
Types of Horizontal Wells and Their Application Favorabilities…8
Short-radius Horizontal Wells…8
Medium-radius Horizontal Wells…9
Long-radius Horizontal Wells…9
Attainable Length of Horizontal Displacement…9
The Completion of Horizontal Wells for Production… 10
Well Logging and Formation Testing… 10
Wall Cleanup and Well Stimulation… 10
Open Hole Completion… 11
Cased Completion… 11
Casing… 11
Cementing… 11
Packers… 12
Perforations and Liners… 12
Current Domestic Applications… 13
Chalk Formations… 13
Other Applications… 15
Source Rock Applications… 15
Stratigraphic Trap Applications… 16
Heterogeneous Reservoirs… 16
Coalbed Methane Production… 16
Boosting Recovery Factor… 17
Fluid and Heat Injection Applications… 17
Multiple Objectives… 18
3. New Developments… 21
Expected Growth of Horizontal Drilling… 21
Coiled Tubing and Horizontal Drilling… 21
Slim Hole Horizontal Drilling… 23
The Drilling of Multiple Laterals… 23
A Fire and Forget Drilling System… 23
Gas Research Wells… 24
4. Summary… 25
Tables
1. Bakken Shale Horizontal Well Costs…6
2. Giddings Field Horizontal Well Production, 6-Month Average… 14
3. Horizontal Oil Activity and Production, North Dakota… 17
Figure
1. Greater Length of Producing Formation Exposed to the Wellbore in a Horizontal Well (A) Than in a Vertical Well (B)…

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