Evaluation of fracture treatments using a layered-reservoir description: Field examples
Journal Article
·
· SPE Production and Facilities
OSTI ID:580828
- Holditch and Associates Inc., College Station, TX (United States)
This paper presents a practical analysis technique to determine actual fracture geometry and proppant profile using a three-dimensional (3D) hydraulic-fracturing simulator. The hydraulic-fracturing model used in this study considers the variation of in-situ stress, Young`s modulus, Poisson`s ratio, and net pay thickness in the productive interval. When the method is applied, the results from the fracture propagation model conform well with the results the authors obtain from pressure-buildup and production-data analyses. This study analyzed hydraulic-fracturing treatments from several wells in the Vicksburg formation of the McAllen Ranch area in south Texas. The authors have provided guidelines to properly describe the treatment interval, how to use this information in the analysis of such fracture treatments, and how to confirm the results using pressure-transient tests and production-data analyses. This paper presents examples illustrating that a detailed description of the reservoir layers is essential to properly evaluate hydraulic-fracture treatments. For the example wells presented in this paper, post-fracture-production and pressure-transient data were available. The authors have analyzed production and pressure-transient data to estimate permeability and fracture half-length. The values of fracture half-length used to analyze the production data matched closely with those predicted by the fracture model.
- OSTI ID:
- 580828
- Journal Information:
- SPE Production and Facilities, Journal Name: SPE Production and Facilities Journal Issue: 1 Vol. 13; ISSN 1064-668X; ISSN SPRFEZ
- Country of Publication:
- United States
- Language:
- English
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