屏蔽暂堵技术在中原油田的应用研究  

Research and Application of Temporary Shielded Plugging Technique in Zhongyuan Oilfield

作　　者：甄剑武[1] 许苏林[1] 史康玲[1] 

机构地区：[1]中原石油勘探局钻井工艺研究院,河南濮阳457001

出　　处：《江汉石油学院学报》2000年第3期81-82,共2页Journal of Jianghan Petroleum Institute

摘　　要：根据中原油田地质构造复杂的特点 ,针对不同产层、不同区块进行钻井液配方研究。通过对屏蔽暂堵技术的改进 ,将普通的钻井液改造成为保护油气层性能良好的钻井液 ,并应用于生产。结果表明 ,经过该技术改造后的钻井液失水量降低 ,岩心的渗透率恢复值明显提高。Considering the properties of a complex geologic structure and various producing pays and faulted blocks in Zhongyuan oilfield, a study of drilling fluid's formulation is performed for different reservoirs in different regions By improving temporary shielded plugging technique, a conventional mud is transformed into a good drilling and completion fluid with a high capability to protect oil formation, and it is introduced into production as well The result obtained demonstrates that its filtration rate is decreased after technical transformation, whereas the permeability restoration rate of core increased

关 键 词：屏蔽暂堵保护 钻井液 堵塞剂 油层保护 渗透率 

分 类 号：TE258.2[石油与天然气工程—油气井工程] TE254.4