摘要
印度尼西亚BD气田开发层位为礁灰岩地层,具有高温高压、富含CO_2和H_2S等酸性气体的特点,给该气田开发井固井防腐作业带来严峻挑战。研发了多功能防腐剂PC-MTA,并通过优化颗粒级配技术构建了抗高温防CO_2和H_2S腐蚀水泥浆体系。室内实验评价表明,所构建的抗高温防CO_2和H_2S腐蚀水泥浆体系具有良好的防腐力学性能、流变性能和防气窜性能,目前已在BD气田4口开发井固井作业中取得成功应用,固井质量优良,可为类似气田固井防腐作业提供借鉴。
The producing formation of BD oilfield in Indonesia is reef limestone. The characteristics of high temperature/high pressure and rich CO2 /H2S of the fieldpose chal lenges to cement ing operation. Amul ti-function corrosion inhibitor PC-MTA was developed and a cement slurry was further formulated with it and based on the theory of engineered particle size distribution, which exhibits fair resistance to high tem-perature and CO2 /H2S corrosion. Lab evaluation of the slurry system shows remarkable corrosion resis-ance,rheology performance and gas migration control. The slurry has been successfully applied in 4 devel-opment wells in BD oilfield, resulting sound bonding quality through the pay zone. Therefore it can be a model for the cementing jobs of similar wells.
作者
赵军
徐璧华
邱汇洋
谢应权
方国伟
ZHAO Jun XU Bihua QIU Huiyang XIE Yingquan FANG Guowsi(COSL,Sanhe,Hebei 065201, China Southwest Petroleum University,Chengdu ,Sichuan 100084 ,China)
出处
《中国海上油气》
CAS
CSCD
北大核心
2017年第3期91-94,共4页
China Offshore Oil and Gas
