Low-Temperature Recrosslinkable Preformed Particle Gel as a Material for Lost Circulation Control

SPE Journal(2022)

引用 9|浏览0
暂无评分
摘要
Summary One of the most prevalent, expensive, and time-consuming problems during drilling operations is the loss of circulation. Uncontrolled lost circulation of drilling fluids may lead to dangerous well control difficulties and, in some cases, complete loss of the well. In this paper, the ability of a low-temperature recrosslinkable preformed particle gel (LT-RPPG) has been evaluated to determine the extent to which it can be used to control drilling fluid losses during drilling operations. The RPPG consists of swellable gel particles that can self-crosslink to form a strong bulk gel in fractures to form strong plugging after being placed in the loss zones. We investigated the effect of the LT-RPPG swelling ratio and fracture width on its plugging efficiency to fractures through core flooding tests. Results showed that its sealing pressure can reach up to 1,381 psi/ft and permeability reduction more than 99.99% when the RPPG swelling ratio is five for the fracture with a width of 2.00 mm. LT-RPPG is a good candidate that can be used to control the severe or total loss during drilling operations.
更多
查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要