裂缝网络油藏水平井开发电模拟实验研究

ELECTRIC ANALOGY MODELLING EXPERIMENT OF FRACTURE NETWORK RESERVOIR DEVELOPMENT BY HORIZONTAL WELLS

周德华 焦方正 葛家理

ZHOU De-hua JIAO Fang-zheng GE Jia-li

中国石化集团股份公司 油田事业部 北京 100029 2. 石油大学 北京 100029

Oil and Gas Development Business Unit, SINOPEC, Beijing 100029, China 2. Petroleum University Beijing, 102249, China

由于天然裂缝网络的复杂性,难以在复杂网络上进行流体流动的数值计算和开发井网的优化设计。该文以相似理论为基础,对裂缝网络和水平井-直井井网进行了一系列的电模拟实验,研究了裂缝网络与水平井井网的关系,重点考虑了裂缝网络的不同性质即离散与连通性、密度、方位等的影响因素,对优化水平井设计和压裂提供了有益的参数。

In the light of the complexity of nature fracture networks,it is extremely difficult to do the numerical calculation of fluid flowing and the design optimization of developing well patterns.A series of electric analogy experiments were conducted based on the similarity theory in this paper to model the fracture networks and horizontal well upright well patterns.The relations between fracture networks and horizontal well patterns were studied,and the properties of fracture networks to effect the rate of horizontal wells,such as discreteness,connectivity,density and orientation,were emphasized.As a result,the valuable parameters to optimize horizontal well designing and pressure fracturing for such complicated reservoirs were presented.

https://doi.org/10.11781/sysydz200302216