Deep rock stress measurement by hydraulic fracturing method taking account of system compliance effect

T. Ito, T. Satoh, H. Kato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

For the effective measurement of the reopening pressure in hydraulic fracturing, it is necessary to use the testing equipment with sufficiently small compliance. If not, there is no way to estimate the maximum stress in a plane perpendicular to a borehole, i.e. the maximum horizontal stress assuming a vertical borehole, from the reopening pressure. It may be very hard to reduce the system compliance drastically by just replacing any components of the hydraulic fracturing system. If the flow meter is emplaced as close as possible to a test section of a borehole isolated by straddle packers, the system compliance can be reduced drastically. To accomplish this idea, we have been developing a testing system with a downhole flow meter.We demonstrated the developed system in a field test successfully. Furthermore, we presented a new method which will allow us to do stress measurement at depths greater than a few km.

Original languageEnglish
Title of host publicationRock Stress and Earthquakes - Proceedings of the 5th International Symposium on In-Situ Rock Stress
PublisherTaylor and Francis - Balkema
Pages43-49
Number of pages7
ISBN (Print)9780415601658
DOIs
Publication statusPublished - 2010
Event5th International Symposium on In-Situ Rock Stress, ISRSV 2010 - Beijing, China
Duration: 2010 Aug 252010 Aug 27

Publication series

NameRock Stress and Earthquakes - Proceedings of the 5th International Symposium on In-Situ Rock Stress

Other

Other5th International Symposium on In-Situ Rock Stress, ISRSV 2010
CountryChina
CityBeijing
Period10/8/2510/8/27

ASJC Scopus subject areas

  • Geology
  • Geotechnical Engineering and Engineering Geology

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