Frac height may increase away from well bore
- Ercill Hunt and Associates, Inc., Houston, TX (US)
Well logs with deep investigation capabilities are necessary to determine accurately the height of hydraulically produced fractures. Logs with shallow investigation capability will indicate the height of the fracture near the well bore, but as shown in a test in an East Texas well, fracture height in some formations can be substantially greater away from the well bore. In the East Texas test, six wire line surveys were run, including the usual gamma ray surveys. The fracture heights determined by the above logs are plotted. The independent estimates of gross fracture height varied considerably. Four logs, TWRL, VDL, SCAN, and CEL appear to be influenced by the fracture. Results were inconclusive from the Au and the CBL log. Analysis of each of these indicates a different minimum fracture height in this well.
- OSTI ID:
- 5821004
- Journal Information:
- Oil and Gas Journal; (USA), Vol. 89:8; ISSN 0030-1388
- Country of Publication:
- United States
- Language:
- English
Similar Records
Explosive detonation tested in hydraulically fractured gas wells
Downhole temperature tool accurately measures well bore profile