[1]蒋佩,曾凌翔,朱炬辉,等. 湖北深层页岩气水平井储层改造关键技术[J].油气井测试,2022,31(02):31-35.[doi:10.19680/j.cnki.1004-4388.2022.02.006]
　JIANG Pei,ZENG Lingxiang,ZHU Juhui,et al.A key technology for reservoir fracturing of deep shale gas horizontal wells in Hubei Province[J].Well Testing,2022,31(02):31-35.[doi:10.19680/j.cnki.1004-4388.2022.02.006]
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 湖北深层页岩气水平井储层改造关键技术()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
31
期数:
2022年02
页码:
31-35
栏目:
出版日期:
2022-04-25

文章信息/Info

Title:
A key technology for reservoir fracturing of deep shale gas horizontal wells in Hubei Province
文章编号:
1004-4388(2022)02-0031-05
作者:
 蒋佩1;  曾凌翔2;  朱炬辉2;  张俊成2
 1.浙江油田公司勘探开发部 浙江 杭州 311100
2.中国石油集团川庆钻探工程有限公司井下作业公司 四川 成都 610051
Author(s):
JIANG Pei1;  ZENG Lingxiang2;  ZHU Juhui2;  ZHANG Juncheng2
1.Exploration and Development Division, PetroChina Zhejiang Oilfield Company, Hangzhou, Zhejiang 311100, China; 
2.Downhole Operation Company of CNPC Chuanqing Drilling Engineering Company Limited, Chengdu, Sichuan 610051, China
关键词:
 ; 储层改造; 页岩气; 水平井; 水力裂缝; 支撑剂; 滑溜水; 封堵效果; 现场试验
Keywords:
 ; reservoir stimulation;  shale gas;  horizontal well;  hydraulic fractures;  proppant;  slick water;  plugging effect;  field test
分类号:
TE353
DOI:
10.19680/j.cnki.1004-4388.2022.02.006
文献标志码:
B
摘要:
 针对水力裂缝的延伸受天然裂缝控制，液体滤失增大，缝宽变窄，支撑剂在缝内运移受阻，加砂困难，易造成砂堵等问题，提出了一体化变黏滑溜水体系。该体系具有携砂性优、伤害小、实时变黏等特点，砂堤高度较常规滑溜水低40%，可极大程度应对现场加砂复杂情况；同时运用多簇射孔+暂堵工艺技术降低破裂压力，增加水裂缝条数，提高裂缝复杂程度，实现改造全覆盖。现场经A井试验，暂堵压力响应值06~10 MPa，停泵转向压力响应值2~11 MPa，封堵效果显著。该技术为现场复杂情况施工提供了解决方案，也为后续提高深层页岩气效益开发奠定了基础。
Abstract:
 Since the extension of hydraulic fractures is controlled by natural fractures, the liquid filtration may increase and the fracture width may narrow, which will hinder the migration of proppant in the fractures, making sanding difficult and consequently sand plugging. To address these problems, an integrated viscosityvariable slick water system is proposed in this paper. The system has the characteristics of excellent sand carrying performance, less damage and realtime viscosity change, with the height of sand dike 40% lower than conventional slick water, allowing it to greatly deal with the complexities during site sand addition. Moreover, the application of multicluster perforation and temporary plugging technology can reduce the fracture pressure, increase the number of hydraulic fractures and improve the complexity of fractures, so as to realize the full coverage of reservoir stimulation. Field test in Well A revealed the response value of temporary plugging pressure of 0610 MPa and the response value of diverting pressure when pump stopping of 211 MPa, suggesting remarkable plugging effect. This technology provides a solution to site operation under complex conditions and lays a foundation for subsequent profitable development of deep shale gas.

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备注/Memo

备注/Memo:
 2021-03-30收稿，2021-09-03修回,2021-12-26接受,2022-04-20网络版发表
中国石油天然气集团重大现场试验项目“深层页岩气有效开采关键技术攻关与试验” (2019F-31)
蒋佩，女，1989年出生，硕士，工程师，2013年毕业于西南石油大学油气田开发专业，现从事非常规天然气开发技术研究和现场管理工作。
电话：0571-56086341,15760557435，E-mail：jiangp85@petrochina.com.cn。通信地址：浙江省杭州市余杭区浙江油田公司勘探开发部，邮政编码：311100。
更新日期/Last Update: 2022-05-07