Forked well

Well Productivity Enhancement by Drilling Multi-Legged Wells A Quantitative Assessment

Basic Information
Author: 
Sanyal, S.K.
Author: 
Morrow, J.W.
Author: 
Henneberger, R.C.
Author: 
Granados, E.E.
Description: 
This paper presents an analysis of the well productivity enhancement possible by drilling multi-legged (or “forked” or “multilateral”) wells in geothermal fields at temperatures in the 100 to 250°C range. A parameter, Productivity Enhancement Factor (“PEF”), is introduced to quantify productivity enhancement; it is defined as the ratio of the downhole productivity index of the multi-legged well to that of the original hole before the forked leg was added. Assuming the original hole to be vertical, it is shown that PEF rises sharply with deviation angle of the forked leg upto about 5 degrees; beyond this, PEF continues to increase with deviation angle albeit at a slower rate.
Publication Date: 
Monday, January 1, 2007
Resource Language: 
English
Intelectual Originator Contact
Organization Name: 
GeothermEx, Inc.
Street Address: 
3260 Blume Drive,Suite 220
City: 
Richmond
State/Province: 
CA
Postal Code: 
94806
Country: 
United States
Phone: 
510-527-9876
Fax: 
510-527-8164
Resource Information
Resource Distribution Contact
Organization Name: 
GeothermEx, Inc.
Street Address: 
3260 Blume Drive,Suite 220
City: 
Richmond
State/Province: 
CA
Postal Code: 
94806
Country: 
United States
Phone: 
510-527-9876
Fax: 
510-527-8164
Geographic Extent
North bounding latitude: 
42.3187
South bounding latitude: 
30.1745
West bounding longitude: 
-124.541
East bounding longitude: 
-102.92
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