苏里格气田上古生界地层随钻岩性快速识别方法及应用

doi:10.3969/j.issn.1672-9803.2021.02.014

录井工程 ›› 2021, Vol. 32 ›› Issue (2): 76-82.doi: 10.3969/j.issn.1672-9803.2021.02.014

苏里格气田上古生界地层随钻岩性快速识别方法及应用

张文雅^①, 李国良^②, 房金伟^②

①中国石油渤海钻探第二录井公司;
②中国石油渤海钻探油气合作开发分公司

收稿日期:2021-02-20 出版日期:2021-06-25 发布日期:2021-07-08
作者简介:张文雅高级工程师,1973年生,1991年毕业于华北石油学校地质专业,现在中国石油渤海钻探第二录井公司地质研究评价中心从事综合研究工作。通信地址:062552 河北省任丘市渤海钻探工程有限公司第二录井公司。电话:(0317)2701479。E-mail:773466711@qq.com

Rapid identification method and application of lithology while drilling of Upper Paleozoic strata in Sulige Gas Field

ZHANG Wenya^①, LI Guoliang^②, FANG Jinwei^②

①No.2 Mud Logging Company,BHDC,CNPC,Renqiu,Hebei 062552,China;
②Oil & Gas Cooperative Development Branch,BHDC,CNPC,Tianjin 300457,China

Received:2021-02-20 Online:2021-06-25 Published:2021-07-08

摘要/Abstract

摘要： 在致密砂岩岩性气藏勘探过程中,气测是唯一的快速随钻连续检测地层含气性的录井技术。气测录井直接测量的全烃、组分资料,能较好地反映地层的含气性,却无法识别是哪种岩性含气,而不同的盆地、不同的岩性,气态烃的组分含量也会有所不同,其组分的构成与地质条件息息相关。在随钻跟踪完井卡层分析阶段,选取目的层烃组分异构比、丙烷占比、湿度比、烃斜率4项特征参数建立图板及划分标准,可有效解决上古生界地层随钻岩性识别问题,从而达到对气层定性评价的目的,为准确卡取完钻层位,少钻无效进尺和钻后选取试气层位提供了依据。该方法用于苏里格气田完钻井结果表明,岩性识别准确率可达99%。

关键词: 上古生界, 砂岩, 煤层, 气测, 特征参数, 岩性识别, 苏里格气田

Abstract: As the only logging technique that can continuously detect gas-bearing of formations while drilling in the exploration of gas reservoirs with tight sandstone lithology,gas logging directly detects the total hydrocarbon and component value,which better reflects the gas bearing of formations,but fails to identify the lithology of gas bearing. The component content of gaseous hydrocarbon varies in different basins and lithologies,and the composition of its component is closely related to geological conditions. In the analysis phase of tracking the formation determination of completion while drilling,four characteristic parameters of target formation hydrocarbon component isomer ratio,propane ratio,humidity ratio and hydrocarbon slope are selected to establish a chart and divide the standard,which effectively solves the problem of lithology identification while drilling in Upper Paleozoic strata,so as to realize qualitative evaluation of gas formations,providing a basis for accurate determination of drilling formations,less invalid footage and gas test formation determination after drilling. Applied in the completion of drilling in Sulige Gas Field,this method shows that the accuracy of lithology identification can reach 99%.

Key words: Upper Paleozoic, sandstone, coal seam, gas logging, characteristic parameter, lithology identification, Sulige Gas Field

中图分类号:

TE132.1

张文雅, 李国良, 房金伟. 苏里格气田上古生界地层随钻岩性快速识别方法及应用[J]. 录井工程, 2021, 32(2): 76-82.

ZHANG Wenya, LI Guoliang, FANG Jinwei. Rapid identification method and application of lithology while drilling of Upper Paleozoic strata in Sulige Gas Field[J]. Mud Logging Engineering, 2021, 32(2): 76-82.

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苏里格气田上古生界地层随钻岩性快速识别方法及应用

Rapid identification method and application of lithology while drilling of Upper Paleozoic strata in Sulige Gas Field

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