钻井液与完井液2025，Vol.42Issue(3)：413-417,5.DOI:10.12358/j.issn.1001-5620.2025.03.019
一种新型低压油藏用自生泡沫修井液体系
A New Self-Generating Foam Workover Fluid for Low Pressure Reservoirs
吴颖 1彭立 2王宏申 2田初明 2彭锦泓 2王少卿2
作者信息
- 1. 中国石油集团海洋工程有限公司油气技术分公司,天津 300450
- 2. 中海油能源发展工程技术增产技术公司,天津 300450
- 折叠
摘要
Abstract
An offshore normal temperature low pressure low permeability low water cut reservoir needed to be worked over,the workover fluid can cause contamination and hence damage the reservoir.To deal with this problem,a cleaning low density self-generating foam workover fluid was developed based on an anti-water-block water-based workover fluid.A self-generating foaming agent ZSP and a wettability alteration agent FZJ etc.were used in formulating the new workover fluid.The workover fluid was evaluated for its general properties,and it was found that the workover fluid has good basic performance,its density can be adjusted between 0.5 g/cm3 and 0.9 g/cm3.The workover fluid is well compatible with the formation waters,natural cores after treatment with this workover fluid can have their wetting phase damage near the wellbore being removed,thereby improving the permeability of the oil phase in a disguised way.This cleaning low density foam workover fluid has been successfully used on three wells(well CH33 etc.),no downhole troubles occurred during operation.Two days after the workover operation,the three wells regained their normal production rates,indicating that this new workover fluid has satisfied the requirements of workover operations on offshore reservoirs with low pressure,low permeability and low water cut.关键词
低密度修井液/自生泡沫/储层保护/海上油田Key words
Low density workover fluid/Self-generating foam/Reservoir protection/Offshore oilfield分类
能源科技引用本文复制引用
吴颖,彭立,王宏申,田初明,彭锦泓,王少卿..一种新型低压油藏用自生泡沫修井液体系[J].钻井液与完井液,2025,42(3):413-417,5.
