聚合物凝胶堵漏研究进展

郝惠军; 刘泼; 严俊涛; 马骋宇; 贺彬; 郇文云

doi:10.12358/j.issn.1001-5620.2022.06.001

聚合物凝胶堵漏研究进展

doi: 10.12358/j.issn.1001-5620.2022.06.001

1.
中国石油集团工程技术研究院有限公司·油气钻完井技术国家工程研究中心, 北京102206
2.
中国石油西南油气田重庆页岩气勘探开发有限责任公司, 重庆 401120
3.
中国石油川渝页岩气前线指挥部, 成都 610000
4.
中石油渤海钻探第四钻井分公司, 河北河间 062450

基金项目: 中石油重大工程现场试验项目“恶性井漏防治技术与高性能水基钻井液现场试验”（2020F-45）

详细信息

作者简介:
郝惠军，高级工程师，1980年生，毕业于湖北大学材料科学与工程学院，主要从事钻井液新材料研发与防漏堵漏研究工作。电话（010）80162090；E-mail：haohuijun@cnpc.com.cn

中图分类号: TE282
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出版历程
- 收稿日期: 2022-06-26
- 修回日期: 2022-07-20
- 网络出版日期: 2023-04-11
- 刊出日期: 2022-11-30

Progresses in the Studies of Mud Loss Control with Polymer Gels

1.
CNPC Engineering Technology R & D Company Limited﹒National Engineering Research Center for Oil and Gas Drilling and Completion Technology, Beijing 102206
2.
Chongqing Shale Gas E & D Company Limited of PetroChina Southwest Oil & Gasfield Company, Chongqing 401120
3.
PetroChina Chuanyu Shale Gas Front-line Command Post, Chengdu, Sichuan 610000
4.
Drilling Engineering Company of BHDC, Hejian, Hebei 062450

摘要

摘要: 聚合物凝胶堵剂在解决钻井过程中出现的漏失现象时，具有高黏弹性、可变形性的优势，综述了常规聚合物凝胶堵剂和“智能”聚合物凝胶堵剂的最新进展。其中，常规聚合物凝胶堵漏材料成胶时间不可控，无法实现高效精准堵漏，而“智能”聚合物凝胶材料能够以多种机理实现高效、精准堵漏，日益成为当下堵漏材料研究的热点。今后，具有刺激响应功能的聚合物凝胶的研究将成为堵漏材料领域的重要方向之一。
- 聚合物凝胶 /
- 堵漏 /
- 智能
Abstract: Polymer gel lost circulation materials (LCMs) have the advantages of high viscoelasticity and deformability in mud loss control. Generally, there are two kinds of polymer gel LCMs, one is the conventional polymer gel LCMs and the other, the so-called “intelligent” polymer gel LCMs. When use the conventional polymer gel LCMs to control mud losses, the gelling time of the polymer gel is not controllable, and therefore the losses of muds or other work fluids cannot be stopped efficiently and accurately. On the other hand, the “intelligent” polymer gel can be used to efficiently and accurately stop the mud losses based on many different mechanisms, and are therefore under investigation as a hotspot LCM. It can be expected that the stimuli-responsive polymer gel will become one of the important fields in which LCMs are studied.
- Polymer gel /
- Lost circulation control /
- Intelligent

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图 1 DE 含量与复合凝胶强度的关系

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图 2 不同纳米二氧化硅浓度的水凝胶的ESEM图像

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图 3 不同类型有机铬对成胶性能的影响

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图 4 HTHS凝胶结构式

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图 5 HTHS在不同天数后的凝胶状态

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图 6 改性明胶合成原理

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图 7 CIT-1 浓度对聚丙烯酰胺凝胶体系成胶时间的影响

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表 1 复合凝胶体系在不同裂缝中的堵漏性能

编号	E/%	F/%	G/%	I/%	J/%	楔形裂缝/mm	承压能力/MPa	突破压力/MPa
1^#	2	2	2	2		2～3	>5.5	>5.5
2^#	3	2	2	2		2～3	>6.5	>6.5
3^#	2	2	2		3	4～6	>4.0	>4.0
4^#	1	1	2	1	4	7～9	>4.5	>4.5
5^#	1	1	2	1	5	17～19	1.5	2.0
注：E为堵漏体系含量，F为聚合物含量，G为交联剂加量，I为刚性粒子，J为与裂缝较匹配的刚性桥接材料

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表 2 聚合物与无机铬交联剂浓度对凝胶成胶性能的影响

HPAM/%	Na₂Cr₂O₇/%	Na₂SO₃/%	t_成胶/h	突破真空度/MPa
0.15			30	0.012
0.20			25	0.015
0.25	0.05	0.10	22	0.019
0.30			20	0.024
0.35			18	0.026
0.15			20	0.029
0.20			16	0.033
0.25	0.07	0.014	13	0.037
0.30			10	0.043
0.35			8	0.047
0.15			12	0.034
0.20			9	0.040
0.25	0.10	0.20	7	0.048
0.30			6	0.054
0.35			4	0.058

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