[1]张云鹏,杨生文,赵战江,等.临兴区块致密砂岩气藏裸眼水平井分段压裂技术[J].油气井测试,2021,30(02):61-66.[doi:10.19680/j.cnki.1004-4388.2021.02.012]
　ZHANG Yunpeng,YANG Shengwen,ZHAO Zhanjiang,et al.Staged fracturing technology of open hole horizontal well in tight sandstone gas reservoir of Linxing block[J].Well Testing,2021,30(02):61-66.[doi:10.19680/j.cnki.1004-4388.2021.02.012]
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临兴区块致密砂岩气藏裸眼水平井分段压裂技术()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
30卷
期数:
2021年02期
页码:
61-66
栏目:
出版日期:
2021-04-25

文章信息/Info

Title:
Staged fracturing technology of open hole horizontal well in tight sandstone gas reservoir of Linxing block
文章编号:
1004-4388(2021)02-0061-06
作者:
张云鹏1; 杨生文1; 赵战江1; 金鑫1; 李宇1; 赵俊2
1.中海油能源发展股份有限公司工程技术分公司 天津 300452
2.中联煤层气有限责任公司晋西分公司 山西吕梁 033200
 通讯作者： Email: zhangyp33@cnooc.com.cn
Author(s):
ZHANG Yunpeng1;  YANG Shengwen1;  ZHAO Zhanjiang1;  JIN Xin1;  LI Yu1;  ZHAO Jun2
 1.Engineering Technology Branch of CNOOC Energy Development Co., Ltd., Tianjing 300450, China
2.Jinxi Branch of China United Coalbed Methane Company. Lyuliang, Shanxi 033200, China
关键词:
 ; 临兴区块; 致密砂岩气藏; 裸眼水平井; 分段压裂; 低温破胶; 液氮助排; 快速放喷; 压裂控水
Keywords:
Linxing block;  tight sandstone gas reservoir;  open hole horizontal well;  staged fracturing;  low temperature gel breaking;  liquid nitrogen drainage;  rapid blowout;  fracturing water control
分类号:
TE357
DOI:
10.19680/j.cnki.1004-4388.2021.02.012
文献标志码:
B
摘要:
 临兴区块致密砂岩气储层裸眼水平井分段压裂过程中，存在压裂施工参数不易确定，投球时机把握不准，压裂液低温破胶难，返排效率低，压后大量产水等问题。在分析气藏特点和借鉴多级压裂经验的基础上，通过油藏数值模拟、压裂模拟优化，将裸眼水平段分成6～12段进行压裂，加砂排量4 m3/min，平均砂比19%～23%；优化投球程序，保证球能顺利到位打开滑套，同时尽量降低过顶替量；优选低浓度速溶瓜胶压裂液体系，实现低伤害、低温快速破胶；采用液氮伴注和快速放喷返排技术，提高压裂液返排速度和效率；对目标层段进行压裂控水优化，避免压后大量产水。该技术为临兴区块致密砂岩气藏开发提供了有力技术支撑。
Abstract:
 In staged fracturing of open hole horizontal wells in tight sandstone gas reservoirs in Linxing Block, it is difficult to determine fracturing operation parameters, to grasp the timing of balling, and to break gel with fracturing fluid at low temperature. Meanwhile, the flowback efficiency is low and the amount of water production is large after fracturing. Based on the analysis of the characteristics of gas reservoir and the experience of multistage fracturing, through reservoir numerical simulation and fracturing simulation optimization, the open hole horizontal part is divided into 612 sections for fracturing, the sand adding displacement is 4 m3/min, and the average sand ratio is 19%23%; in addition, the optimization of ball throwing program can ensure that the ball can be placed smoothly, open the sliding sleeve, 〖JP2〗and reduce the over displacement as far as possible; The low concentration instant guar gum fracturing fluid system is optimized to achieve low damage, low temperature and rapid gel breaking; liquid nitrogen injection and rapid blowout flowback technology are adopted to improve the flowback speed and efficiency of fracturing fluid; fracturing water control optimization is carried out for the target interval to avoid large amount of water production after fracturing. This technology provides strong technical support for the development of tight sandstone gas reservoir in Linxing Block.

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备注/Memo

备注/Memo:
 2020-09-30收稿，2021-03-05修回，2021-03-11接受，2021-04-20 网络版发表
基金项目 国家科技重大专项“临兴—神府地区煤系地层煤层气、致密气、页岩气合采示范工程”(2016ZX05066)
张云鹏，男，1987年8月出生，硕士，工程师，2015年毕业于西南石油大学油气田开发专业，现从事油气田增产改造理论技术研究与现场应用工作。电话：022-66907399，17612296257；Email：zhangyp33@cnooc.com.cn。通信地址：天津市滨海新区塘沽滨海新村中海油能源发展股份有限公司工程技术分公司，邮政编码：300452。
更新日期/Last Update: 2021-05-10