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煤层气井注入/压降测试工艺技术与进展
引用本文:杨怀成,钱卫明,房国平,张磊.煤层气井注入/压降测试工艺技术与进展[J].勘探地球物理进展,2012(2):70-75.
作者姓名:杨怀成  钱卫明  房国平  张磊
作者单位:[1]中国石化华东分公司采油厂,江苏泰州225300 [2]中国石化华东分公司非常规指挥部,山西乡宁042100
基金项目:中国石化重大专项基金项目(项目编号:2010P10082-003)
摘    要:煤层气井注入/压降测试是获得煤储层物性的主要手段。根据前期测试过程中存在的问题,不断完善注入/压降测试技术,包括测试工艺的改进、测试方式、裸眼和套管对比测试、封隔方式和测试参数的优化等,工艺技术日趋成熟。2009年至2011年在和顺、延川南和织金等3个煤层气勘探区块已累计开展44井次测试,工艺成功率从67%上升至100%,资料解释质量不断提高,为评价3个煤层气区块的煤储层物性和排采提供了有力的技术支撑。

关 键 词:煤层气井  煤储层物性  注入/压降测试  工艺技术

Technology of CBM wells injection/falloff test and its progress
Yang Huaicheng,Qian Weiming,Fang Guopingand Zhang Lei.Technology of CBM wells injection/falloff test and its progress[J].Progress in Exploration Geophysics,2012(2):70-75.
Authors:Yang Huaicheng  Qian Weiming  Fang Guopingand Zhang Lei
Affiliation:1.Oil Production Plant of East China Branch Company,SINOPEC,Taizhou,Jiangsu 225300,China;2.Unconventional Resources Development Headquarter of East China Branch Company,SINOPEC,Xiangning,Shanxi 042100,China)
Abstract:CBM wells injection/falloff test is the primary means of acquiring coal reservoir physical properties.Against the existing problems in previous test process,the technology of CBM wells injection/falloff test has been continuously improved and becoming mature,including the improvement of testing techniques,testing methods,borehole/casing comparison testing and packing method,and the optimization of testing parameters.From 2009 to 2011 in the three CBM exploration blocks of Heshun,Yanchuannan and Zhijin,testing of 44 wells had been carried out,with the success ratio of techniques rising from 67 % to 100 % and data interpreta tion quality continuously improving.Thus,the technology can provide forceful technical support for the evaluation of the coal reser voir physical properties and displacement production of the three CBM blocks.
Keywords:CBM wells  coal reservoir physical properties  injection/falloff test  technology
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