摘要
利用超声波测定并计算油层岩石力学参数是一种行之有效的方法。为了最大限度地反映油藏岩石的真实情况，笔者将地面露头岩心改为模拟油藏状态条件下油层岩心进行测试，并结合生产需要，以准噶尔盆地东部裂缝型油藏岩心为研究对象，测定不同温度、不同压力下的岩石力学参数。利用这些参数，可以研究超声波在岩体内的传播规律，了解岩石动弹性模量，提供压裂设计事数，判断油层岩石稳定性和缝高。从测试结果看，温度、压力对测定力学参数是有影响的，其中温度影响较小，压力影响很大。另外，该方法与测井方法具有同等效果，而且成本低，针对性强，且不影响油井生产，具有广泛的应用价值。
Using ultrasonic wave to measure and calculate the mechanical porameters of rock is a effective method. In order to simulate the true situaion of rock in reservoir as fully as mpible,the cores simulat ing reservoir condition are used instead of the outcrop cores in the teats. Combining with the needs of prduction,the mechanical parameters of rock in different temperatures and pressures are measured tak ing the fracture-type reservoir core in the Junger basin as the object of study. Applying those parame ters, the propagation law of ultrasonic wave in the reservoir is studied,the elastic modulus of rock are calculated, the fracturing parameters are designed, and the rock stability and the fracture height is Judged. According to the testing results,the measured mechanical parameters of rock have something to do with the temperature and pressure,with is influenced slightly by the temPerature and greatly by the pressure. In addition,this method is equivalent to the we1l logging. lt needs a lower cost and doesn't affect the oil preduction,is worth to propularize extensively
出处
《石油钻采工艺》
CAS
CSCD
北大核心
1994年第2期61-66,82,共7页
Oil Drilling & Production Technology
