地层环境响应封堵材料研究与应用

TE282; 针对现有井壁稳定材料难以精准匹配地层微裂缝,缺乏地层识别和选择性作用的能力,提出了地层环境响应井壁稳定材料研发技术思路.通过建立基于地层环境因素驱动的响应机制,优化地层环境下活性组分的反应形式和形态变化,活性组分与载体材料的组装方式,设计研发出地层环境响应封堵材料SMFG-1.该产品表现出优异的地层响应性能和极佳的配伍性能,显著改善泥饼质量且环保无毒,pH值敏感范围为6~8之间,可在地层中快速响应形成沉淀,封堵地层孔喉和微裂缝,具有响应释放灵敏性和可控性.6次pH响应循环后,释放析出率仍高达99.55%.SMFG-1在北XY-HF井复杂井段成功现场应用中,提高钻井液的封堵能力、稳...

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Published in钻井液与完井液 Vol. 39; no. 6; pp. 677 - 684
Main Author 孔勇
Format Journal Article
LanguageChinese
Published 中石化石油工程技术研究院有限公司,北京100101 01.11.2022
页岩油气富集机理与有效开发国家重点实验室,北京100101
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ISSN1001-5620
DOI10.12358/j.issn.1001-5620.2022.06.003

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Abstract TE282; 针对现有井壁稳定材料难以精准匹配地层微裂缝,缺乏地层识别和选择性作用的能力,提出了地层环境响应井壁稳定材料研发技术思路.通过建立基于地层环境因素驱动的响应机制,优化地层环境下活性组分的反应形式和形态变化,活性组分与载体材料的组装方式,设计研发出地层环境响应封堵材料SMFG-1.该产品表现出优异的地层响应性能和极佳的配伍性能,显著改善泥饼质量且环保无毒,pH值敏感范围为6~8之间,可在地层中快速响应形成沉淀,封堵地层孔喉和微裂缝,具有响应释放灵敏性和可控性.6次pH响应循环后,释放析出率仍高达99.55%.SMFG-1在北XY-HF井复杂井段成功现场应用中,提高钻井液的封堵能力、稳定井壁,成功解决硬脆性泥岩发育、裂隙发育、易垮塌掉块等井壁失稳难题,保障复杂井段钻井安全.
AbstractList TE282; 针对现有井壁稳定材料难以精准匹配地层微裂缝,缺乏地层识别和选择性作用的能力,提出了地层环境响应井壁稳定材料研发技术思路.通过建立基于地层环境因素驱动的响应机制,优化地层环境下活性组分的反应形式和形态变化,活性组分与载体材料的组装方式,设计研发出地层环境响应封堵材料SMFG-1.该产品表现出优异的地层响应性能和极佳的配伍性能,显著改善泥饼质量且环保无毒,pH值敏感范围为6~8之间,可在地层中快速响应形成沉淀,封堵地层孔喉和微裂缝,具有响应释放灵敏性和可控性.6次pH响应循环后,释放析出率仍高达99.55%.SMFG-1在北XY-HF井复杂井段成功现场应用中,提高钻井液的封堵能力、稳定井壁,成功解决硬脆性泥岩发育、裂隙发育、易垮塌掉块等井壁失稳难题,保障复杂井段钻井安全.
Author 孔勇
AuthorAffiliation 页岩油气富集机理与有效开发国家重点实验室,北京100101;中石化石油工程技术研究院有限公司,北京100101
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Keywords 地层诱导
钻井液
环境响应
井壁稳定
封堵
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页岩油气富集机理与有效开发国家重点实验室,北京100101
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Snippet TE282; 针对现有井壁稳定材料难以精准匹配地层微裂缝,缺乏地层识别和选择性作用的能力,提出了地层环境响应井壁稳定材料研发技术思路.通过建立基于地层环境因素驱动的响应...
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