钻井液与完井液2017，Vol.34Issue(4)：55-58,4.DOI:10.3969/j.issn.1001-5620.2017.04.010
苏丹6区西部Sufyan区块失返性漏失复合堵漏技术
Compound Lost Circulation Control Technology for Lost Return in the Sufyan Sub-Block in the West of the 6th Block in Sudan
杨国涛 1龙英全 2周友元 1王建稳 3王阳 1徐金永1
作者信息
- 1. 中原石油工程有限公司技术公司,河南濮阳 457001
- 2. 中原钻井一公司苏丹 757 井队,河南濮阳 457001
- 3. 中原钻井二公司 40721 井队,河南濮阳 457001
- 折叠
摘要
Abstract
Well NW-1 is located in the Sufyan sub-block in the west of the 6th block in Sudan. Lost return has been encountered in the 2nd interval of the well, and LCM slurries and cement slurries have been used to stop mud losses, but all failed. Borehole wall collapse resulted from mud losses led to sidetrack of the well. In the 3rd interval, lost return happened again. Conventional lost circulation materials, cement slurries, stone particles and rubber fragment, which had been tried 30 times in total, failed to stop the mud losses. The mud losses were finally successfully controlled with a reversed-phase gel LCM in one try, and the well was drilled to the designed depth. The use of reversed-phase LCM successfully in controlling mud losses on the well NW-1 is of great importance and has provided good experience and technical support for the operation in Sufyan sub-block of the 6th block in Sudan.关键词
苏丹6区/裂缝性、溶洞性漏失/复合堵漏Key words
The 6th Block in Sudan/Mud losses into fractures and vugs/Compound lost circulation control分类
能源科技引用本文复制引用
杨国涛,龙英全,周友元,王建稳,王阳,徐金永..苏丹6区西部Sufyan区块失返性漏失复合堵漏技术[J].钻井液与完井液,2017,34(4):55-58,4.
