4/12/2025, 7:51:02 AM 星期六
Slickwo在线清洁压裂液在延长气田Y区域的应用
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作者:
作者单位:

1.陕西延长石油(集团)有限责任公司延长气田采气四厂,陕西 延安716000;2.陕西延长石油(集团)有限责任公司研究院,陕西 西安710065

中图分类号:

TE37


Application of Slickwo online cleaning fracturing fluid in Area Y of Yanchang Gas Field
Author:
Affiliation:

1.No. 4 Gas Production Plant of Yanchang Gas Field, Shaanxi Yanchang Petroleum (Group) Co., Ltd.,Yan’an, Shaanxi 716000, China;2.Research Institute of Shaanxi Yanchang Petroleum (Group) Co., Ltd., Xi’an Shaanxi 710065, China

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    摘要:

    延长气田Y区域主力气层为上古生界本溪组、山西组、石盒子组,其中本溪组由于地层压力较高,施工时出现超压现象。山西组、石盒子组地层由于粘土矿物含量高水敏性强,常规压裂液压后破胶不彻底对地层伤害较高。为了解决延长气田Y区域所采用压裂液体系存在水锁、破胶液残渣含量高、储层伤害高等问题,研发了一种Slickwo在线压裂液体系。对Slickwo在线压裂液体系进行室内与现场应用评价。室内实验表明,该压裂液溶胀时间为2 min;120 ℃下,剪切90 min粘度在50 mPa·s左右;防膨率为80%;岩心伤害率<15%,对储层有很好的适应性;破胶液表面张力24.35 mN/m。在延长气田Y区域的应用表明,Slickwo在线压裂液能达到在线混配施工的要求,满足现场加砂要求。

    Abstract:

    The main gas layers in the Y area of Yanchang Gas Field are the Benxi Formation, Shanxi Formation and Shihezi Formation of the Upper Paleozoic, among which the Benxi Formation had overpressure phenomenon during construction due to the high formation pressure. Incomplete gel breaking after conventional fracturing led to high formation damage due to the high clay mineral content and strong water sensitivity of the Shanxi Formation and Shihezi Formation. In order to solve the problems of water lock, high content of gel breaker residue and high reservoir damage in the Y area of Yanchang Gas Field, a Slickwo online fracturing fluid system has been developed. The slickwo online fracturing fluid system was evaluated in laboratory and field. Laboratory experiments show that the swelling time of the fracturing fluid is 2min, the viscosity is about 50mPa·S at 120℃ for 90min, the anti-swelling rate is 80%, core damage rate less than 15%, and the surface tension of the breaker is 24.35mN/m. The application in the Y area of Yanchang Gas Field shows that the Slickwo online fracturing fluid can meet the requirements of online mixing operation and site sand addition.

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引用本文

张建忠,杨海,刘安邦,等. Slickwo在线清洁压裂液在延长气田Y区域的应用[J].钻探工程,2023,50(2):85-90.
ZHANG Jianzhong, YANG Hai, LIU Anbang, et al. Application of Slickwo online cleaning fracturing fluid in Area Y of Yanchang Gas Field[J]. Drilling Engineering, 2023,50(2):85-90.

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  • 收稿日期:2022-01-05
  • 最后修改日期:2022-12-09
  • 录用日期:2022-12-24
  • 在线发布日期: 2023-04-10
  • 出版日期: 2023-03-10
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