天然气工业2009，Vol.29Issue(11)：20-21,26,3.DOI:10.3787/j.issn.1000-0976.2009.11.006
基于岩石力学参数评价火山岩裂缝发育程度
Evaluation of fracture development in volcanic rocks based on rock mechanical parameters
刘之的 1汤小燕 1于红果 2张伯新2
作者信息
- 1. 西安科技大学地质与环境学院
- 2. 中国石油天然气集团公司西部钻探工程有限测井公司
- 折叠
摘要
Abstract
Identification of fractures has always been challenged in logging interpretation of fractured reservoirs. The aecura-cy of fracture identification with conventional logging techniques can not meet the requirements of exploration and development
in oil and gas fields. Rock mechanical parameters can reveal the genetic types, spatial distribution and genetic mechanism of fractures in geologic history, thus can reflect, to some extent, the level of fracture development. Based on laboratory testing of rock mechanical parameters with 40 samples from the J unggar Basin, three computational models, including rock integrity coef-ficient, fracture development index, rock stability coefficient, are built up by use ofvarious mechanical parameters such as elas-tic modulus, bulk modulus and shear modulus, for which the programs are designed. These three appraisal indexes are used in point-to-point automatic identification of fractures in volcanic rocks. Comparison of the results with core description and image logging indicates that this method is highly accurate and practical and can meet the requirements of logging identification of frac-tures in volcanic rocks.关键词
岩石力学/参数/火山岩/裂缝/发育程度/测井解释/评价指标Key words
rock mechanics/parameter/volcanic rock/fracture/development level/logging interpretation/evaluation index分类
天文与地球科学引用本文复制引用
刘之的,汤小燕,于红果,张伯新..基于岩石力学参数评价火山岩裂缝发育程度[J].天然气工业,2009,29(11):20-21,26,3.
