期刊
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
卷 43, 期 1, 页码 37-48出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijrmms.2005.04.005
关键词
in situ stress; flowback; XLOT
In this paper, several high-quality extended leak-off tests (XLOT) with flowback are reviewed. It is argued that a properly performed XLOT with flowback gives a precise determination of the minor in situ stress. Further, it is found that the improved stress estimate tends to predict a stress level significantly lower than that found by traditional interpretation of leak-off or extended leak-off tests. The flowback test with volume measurements should be the preferred method of performing leak-off tests for precise routine stress determination in deep wells. (c) 2005 Elsevier Ltd. All rights reserved.
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