Conformance While Fracturing Tight Gas Formations
In: All Days, 2008-06-09
Online
unknown
Zugriff:
The industry is continuing to expand production from reservoirs that had previously been passed over because of less than desirable properties such as low porosity, permeability, high water saturations, and/or being in close proximity to water. Because of this, water production after a hydraulic fracturing operation is an even greater concern and can make stimulation of these intervals an uneconomical venture.This paper discusses how water production has been significantly reduced using a new conformance-while-fracturing (CWF) method that incorporates a hydrophobically modified water-soluble polymer (HMWSP) to function as a relative permeability modifier (RPM) incorporated into the fracturing treatment design.The purpose of the HMWSP is to reduce the effective permeability to the flow of water without significant changes to the flow of the hydrocarbon. A low gel loading borate crosslinking fluid is used to fracture stimulate the wells.The increase in water production with the CWF method is typically less than 50% that of offset wells that had been fracture stimulated with conventional methods. Additionally, the total production of the wells stimulated using the CWF method usually resulted in lower water-gas ratios. This paper describes the properties of the HMWSP, general CWF job-design considerations, field applications, and post-fracturing result comparisons of the CWF method with offset wells.
Titel: |
Conformance While Fracturing Tight Gas Formations
|
---|---|
Autor/in / Beteiligte Person: | Eldon Dwyann Dalrymple ; Everett, Don M. ; Eoff, Larry S. |
Link: | |
Zeitschrift: | All Days, 2008-06-09 |
Veröffentlichung: | SPE, 2008 |
Medientyp: | unknown |
DOI: | 10.2118/114557-ms |
Schlagwort: |
|
Sonstiges: |
|