钢丝投捞电泵系统在渤海油田应用探索

Applied Exploration of Wireline Running and Pulling Pumps System in Bohai Oilfield

赵杰 陈秋月 杨洪涛 马长亮

ZHAO Jie CHEN Qiuyue YANG Hongtao MA Changliang

中海石油(中国) 有限公司天津分公司, 天津 300452; 中海油能源发展股份有限公司工程技术分公司, 天津 300452

Tianjin Branch of CNOOC Ltd, Tianjin 300452, China; Engineering Technology Branch of CNOOC Energy Development Co. Ltd., Tianjin 300452, China

为了克服常规检泵作业时井控及油藏污染风险高、以及一些边际油田检泵作业时无修井机的难题，渤海油田开发了一套钢丝投捞电泵系统。该系统在检泵作业时通过地面钢丝绞车下入打捞工具将井下电泵机组捞出，再利用钢丝重新下入新电泵机组。渤海油田五口井钢丝投捞电泵系统的实践表明，该系统检泵作业程序简单，适用于多种井况，克服了常规检泵作业的工程量大、人员物料多及检泵周期长等缺点，节省检泵作业的工期及费用，保护储层并提高了油井的综合生产时效；下入电泵需综合考虑电泵排量及泵挂垂深。

In order to solve the high risk problems of well control and reservoir pollution during routine pump inspection, and the absence of workover machine during pump inspection in some marginal oil fields, a set of steel wire electric pump system was developed in Bohai Oilfield. The electric downhole pump unit of this system is pulled out from the hole by the ground wire winch when workover operation is carried out for the system, then the new pump unit is delivered into the hole through the wire. The practical application of wireline running and pulling pumps system of 5 wells in Bohai Oilfield shows that the procedure of pump inspection operation is simple, and the system is suitable for multiple well conditions. Besides, some disadvantages of conventional workover such as large quantity of engineering, more workers, and materials and long cycle of workover are overcomed by the wireline running and pulling pumps system. Therefor, the system saves the time and cost of workover operation, protects the reservoir and improves the comprehensive production efficiency of the well. Significantly, comprehensive consideration of electric pump displacement and hanging vertical depth should be taken when a new pump system is applied.

https://doi.org/10.3969/j.issn.1008-2336.2019.04.085