Development and field application of downhole crosslinking plugging agent

被引：5

作者：

Feng, Jie ^{[1
,2
]}

Zheng, Lihui ^{[1
]}

Hao, You ^{[3
]}

Hui, Baotong ^{[2
]}

Yang, Hong ^{[2
]}

Hao, Huijun ^{[2
]}

Liu, Fan ^{[2
]}

Li, Long ^{[2
]}

Li, Yingying ^{[2
]}

机构：

[1] China Univ Petr, Beijing 102249, Peoples R China

[2] China Natl Petr Corp Engn Technol Res Inst Co Ltd, Beijing 102206, Peoples R China

[3] Petrochina Qinghai Oilfield Co, Dunhuang 736200, Peoples R China

来源：

MATERIALS EXPRESS | 2021年 / 11卷 / 11期

关键词：

Downhole Crosslink; Plugging; Loss Circulation; Thickening with Water;

D O I：

10.1166/mex.2021.2094

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

There were mainly cement slurry, bridge plugging and polymer gel plugging materials for fracture loss circulation and fractured/caved loss circulation. The downhole crosslinking plugging agent was researched for the plugging agents' respective limitations leaded to low success rate of plugging and longer construction period. This kind IP: 49.249.253.194 On: Mon, 22 Nov 2021 08:02:43 of plug agent is consistent with emulsion, phase inversion agent and crosslinking agent. It could form a high Copyright: American Scientific Publishers strength elastomer when the plug agent is pumped into the leaking layer and mixed with a certain amount of Delivered by Ingenta water. The elastomer with strong ability could offer good resident ability to reduce cement slurry thickening by underground water and plugging mud, and increased the ratio of success. The experimental results showed that crosslinking time wasn't affected by temperature, salt water, drilling cuttings, bentonite mud and other pollutants. The plug agent has been successfully used in several wells of the sixth block in Sudan.

引用

页码：1887 / 1891

页数：5

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