| 冀东油田绒囊修井液控制储层伤害应用研究 |
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| 引用本文： | 李良川,卢淑芹,彭通,张明伟,米凡. 冀东油田绒囊修井液控制储层伤害应用研究[J]. 石油钻采工艺, 2011, 33(3): 31-34 |
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| 作者姓名： | 李良川 卢淑芹 彭通 张明伟 米凡 |
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| 作者单位： | 1.中国石油大学石油工程教育部重点实验室，北京 102249 |
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| 基金项目： | 国家科技重大专项“大型油气田及煤层气开发”子课题(编号:2008ZX05024-04-005); 教育部“长江学者和创新团队发展计划”(编号:IRT0411)联合资助 |
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| 摘 要： | 针对冀东油田在修井过程中出现漏失、含水恢复时间长、储层伤害严重等问题，在分析了绒囊暂堵机理的基础上，现场采用绒囊修井液体系，利用绒囊自匹配漏失通道实现全面封堵并可自动返排的特性解决了这一难题。室内评价表明，绒囊修井液体系稳定时间15 d以上，封堵地层后可提高地层承压能力达到7 MPa，修井液侵入地层在8 cm以内，岩心渗透率恢复值达90%以上。在L12-6井和NP23-X2409井进行了现场应用，L12-6井采用绒囊修井液暂堵检泵，含水恢复至正常水平仅需3 d，且日产油增加3 t多，含水率下降了30%；NP23-X2409井采用绒囊修井液暂堵后挤水泥，承压能力提高了6~7.5 MPa，日产油增加了10 t多，含水率下降了5%。室内和现场应用表明，绒囊修井液封堵效果好，对储层伤害较小。
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| 关 键 词： | 绒囊 修井液 暂堵 储层伤害 恢复产能 承压能力 |
| 收稿时间： | 2019-04-02 |
Fuzzy-ball workover fluids for formation damage control in Jidong Oilfield |
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| LI Liangchuan,LU Shuqin,PENG Tong,ZHANG Mingwei,MI Fan. Fuzzy-ball workover fluids for formation damage control in Jidong Oilfield[J]. Oil Drilling & Production Technology, 2011, 33(3): 31-34 |
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| Authors: | LI Liangchuan LU Shuqin PENG Tong ZHANG Mingwei MI Fan |
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| Affiliation: | 1.Key Laboratory for Petroleum Engineering of the Ministry of Education, China University of Petroleum, Beijing 102249, China2.PetroChina Jidong Oilfield Company, Tangshan 063000, China3.Department of Automation, Central South University, Changsha 410083, China |
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| Abstract: | In view of the difficulties during workover treatments in Jidong Oilfield,such as circulation loss,slow water cut recovering,serious formation damage,a novel technique named Fuzzy-Ball was applied based on the temporary blocking mechanism analysis of Fuzzy-Ball workover fluids.The Fuzzy-Ball can self-match leak passages completely during workover,and then flow back automatically from formation.Laboratory evaluation showed that the workover fluids could be stable for more than 15 days,enhance formation press... |
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| Keywords: | Fuzzy-Ball workover fluid temporary blocking formation damage recovery productivity pressure bearing capacity |
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