Zinno, Richar J. and Gibson, John B. and Walker, Ray N. and Withers, Robert J. (1998) Overview: Cotton Valley Hydraulic Fracture Imaging Project. In: SEG Technical Program Expanded Abstracts 1998. SEG Technical Program Expanded Abstracts . Society of Exploration Geophysicists, pp. 926-929. ISBN 1052-3812
Full text not available from this repository.Abstract
This paper describes an experiment to image hydraulicfractures in the Cotton Valley sands at approximately9,500’ depth. The purpose is to determine key geometricalattributes of those hydraulic fractures. A pilot study usingone monitor well with a single geophone at normal wellspacing and preliminary results from a more detailed studyinvolving two monitor wells with arrays of geophones arepresented.In the pilot study, it is shown that microseismic eventsinduced by hydraulic fracturing at a depth of 9,500’ weredetected at distances exceeding 1,300’ from the origin.Analysis of results indicated that a more complex geophonearray was necessary. An industry consortium of majoroperators, service companies, government agencies andnational laboratories was formed to perform a moredetailed study using 96 3-component geophone sondesdistributed among two monitor wells. These monitor wellsoffset the treatment well using nominal 80 acre spacingrules and will be used as producers. A unique microseismicrecording system specifically designed and manufacturedfor these operating depths (~9,500’) is presented. Imagingis accomplished by using various data analysis techniquesincluding real-time event location.Applications of the technology include optimization ofhydraulic fracture designs and accurate mapping of fracturegeometry. Fracture models will be developed to accuratelydepict fracture growth as determined by this project.
| Item Type: | Book Section |
|---|---|
| Subjects: | Methodology > Other-additional study Region > USA > Texas > Cotton Valley Inducing technology > Unconventional hydrocarbon extraction |
| Project: | SERA > COTTON VALLEY: uconventional hydrocarbon extraction |