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
出处
《江汉石油学院学报》
CSCD
北大核心
2000年第3期81-82,共2页
Journal of Jianghan Petroleum Institute
关键词
屏蔽暂堵保护
钻井液
堵塞剂
油层保护
渗透率
shielded plugging technique
drilling fluid
plugging agent
permeability
oil reserves
Zhongyuan oilfield
