[1]李风光,吕选鹏,王晓磊,等.浅层低渗透油气井超低温压裂液体系研究[J].油气井测试,2021,30(05):37-43.[doi:10.19680/j.cnki.1004-4388.2021.05.007]
　LI Fengguang,LYU Xuanpeng,WANG Xiaolei,et al. Study on ultralow temperature fracturing fluid system for shallow oil and gas wells with low permeability[J].Well Testing,2021,30(05):37-43.[doi:10.19680/j.cnki.1004-4388.2021.05.007]
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浅层低渗透油气井超低温压裂液体系研究()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
30卷
期数:
2021年05期
页码:
37-43
栏目:
出版日期:
2021-10-25

文章信息/Info

Title:
 Study on ultralow temperature fracturing fluid system for shallow oil and gas wells with low permeability
文章编号:
1004-4388(2021)05-0037-07
作者:
 李风光1; 吕选鹏2; 王晓磊3; 张华4; 曹孟君5; 尹海霞1
 1.中国石油集团渤海钻探工程有限公司工程技术研究院 天津 300457
2.中国石油集团渤海钻探工程有限公司工程技术处 天津 300457
3.中国石油集团渤海钻探工程有限公司井下技术服务分公司 天津 300280
4.中国石油集团渤海钻探工程有限公司油气合作开发分公司 天津 300280
5.中国石油集团渤海钻探工程有限公司石油工程总承包分公司 陕西西安 710016
Author(s):
LI Fengguang1;  LYU Xuanpeng2;  WANG Xiaolei3;  ZHANG Hua4;  CAO Mengjun5; YIN Haixia1
 

1.Engineering Technology Research Institute, CNPC Bohai Drilling Engineering Co., Ltd., Tianjin 300457,

China
2.Engineering Technology Division, CNPC Bohai Drilling Engineering Co., Ltd., Tianjin 300457, China
3.Downhole Technology Service Company, CNPC Bohai Drilling Engineering Co., Ltd., Tianjin 300280, China
4.Oil & Gas Cooperation and Development Company, CNPC Bohai Drilling Engineering Co., Ltd., Tianjin 300280, China
5.Petroleum Engineering General Contracting Branch, CNPC Bohai Drilling Engineering Co., Ltd., Xi′an, Shaanxi 710016, China

关键词:
 ; 浅层油气井; 低渗透储层; 超低温压裂液; 羟丙基胍胶; 有机硼交联剂; 低温破胶剂; 青海油田
Keywords:

shallow oil and gas wells;  low permeability reservoir;  ultralow temperature fracturing fluid; 

hydroxypropyl guanidine gum;  organic boron crosslinking agent;  low temperature breaker;  Qinghai Oilfield

分类号:
TE348
DOI:
10.19680/j.cnki.1004-4388.2021.05.007
文献标志码:
B
摘要:
 

低渗透储层埋深1 800 m以浅、温度低于60℃的浅层油气井，常规压裂液体系在压裂施工过程中存在高砂比携砂和低温破胶技术难题。通过提高空

间网状结构的交联效率，研发了低浓度有机硼交联剂，根据氧化还原反应原理，研发了低温破胶剂，形成了超低温压裂液体系。实验结果表明，当瓜胶用量为025%、交联比

100〖DK〗∶03，该体系在170 s-1、连续剪切90 min后黏度维持在65 mPa〖DK〗·s以上，满足现场施工技术要求；最低破胶温度可低至20℃，在120 min内完全破胶

，破胶液黏度为23 mPa〖DK〗·s，残渣含量为1262 mg/L，对储层伤害低。2018年以来该压裂液体系在青海油田现场应用200余口井，最高携砂砂比达30%，总用液量

达10×104 m3以上，成功率100%，最高单井日产油达1068 t，为青海油田低温浅层油气井效益开发提供有力的技术支撑。

Abstract:
 

For shallow oil and gas wells with a buried depth within 1 800 m and a temperature lower

than 60 ℃, there are technical problems of high sand ratio sand carrying and low temperature gel breaking in the fracturing operation of conventional

fracturing fluid system. By improving the crosslinking efficiency of spatial network structure, a low concentration organic boron crosslinking agent was

developed. According to the principle of redox reaction, a lowtemperature gel breaker was developed to form an ultralow temperature fracturing fluid

system. The experimental results show that when the amount of guar gum is 025% and the crosslinking ratio is 100〖DK〗∶03, the viscosity of the

system is maintained above 65 mPa〖DK〗·s after 170 s-1 and continuous shear for 90 min, which meets the technical requirements of onsite

construction; The minimum gel breaking temperature can be as low as 20 ℃, and the gel can be completely broken within 120 min. the viscosity of gel

breaking liquid is 23 mPa〖DK〗·s, and the residue content is 1262 mg/L, which has low damage to the reservoir. Since 2018, the fracturing fluid

system has been applied in more than 200 wells in Qinghai Oilfield, with a maximum sand carrying ratio of 30% and a total fluid consumption of more than

10×104 m3, with a success rate of 100%. After using this technology, the maximum daily oil production of a single well reaches 1068 t, which

provides strong technical support for the benefit development of lowtemperature shallow oil and gas wells in Qinghai Oilfield.

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备注/Memo

备注/Memo:
2020-11-05收稿，2021-08-01修回,2021-08-05接受,2021-10-20网络版发表
 

中国石油集团渤海钻探工程公司2017年重大研发项目“超低温压裂液体系研究与现场试验”（2017ZD10K02）

作者简介 李风光，男，1982年出生，博士，高级工程师，2012年毕业于中国石油大学（北京）化学工程与技术专业

，从事油气田储层改造增产技术研究工作。电话：02225910750；Email：sdlfg@163.com〖 。通信地址：天津市滨海新区大港油田三号院渤海钻探工程技术研究院，邮政编码：300280。


更新日期/Last Update: 2021-11-25