摘要
砂岩和石灰岩是石油天然气钻井破岩的主要对象，它的物理力学性质已有系统的测定方法和定量分级。但是，它抗喷嘴射流冲蚀破碎的内涵关系和临界压力值还没有定量指标。通过大量的实验研究和综合分析，得出了砂岩、石灰岩和抗压强度与抗喷嘴射流冲蚀破岩压力的临界值在１９．１～２６．９之间。为钻井水力参数的设计提供了可靠数据，同时为开采作业提供了理论依据。
Sandstone and limestone are the main targets cut by oil and gas well drilling and for their physical mechanical property there have been systematic determination method and quantitative gradation. But for their connotative relation and critical pressure value in resisting crushing by nozzle fluidics washing there is not yet a quantitative index.From a vast amount of experimental researches and comprehensive analysis,it has been obtained that the compression strength of the sandstone and limestone and their critical values of rock breaking pressure resisting nozzle fluidics washing are 19.1 26.9,which provides a reliable data for the design of drilling hydraulic parameter and also a theoretical basis for production operation.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1997年第5期52-55,共4页
Natural Gas Industry
关键词
钻井
砂岩
石灰岩
喷嘴
射流
破岩
冲蚀作用
Petroleum,Natural gas,Drilling parameter,Sandstone,Nozzle,Fluidics,Washing action,Rock breaking mechanism. Petroleum Rd.,,Nanchong,Sichuan,China.Tel:(0817)2224433 2923.
