摘要
吉木萨尔凹陷芦草沟组储层具有致密、特低渗、层厚、砂泥岩薄互层发育等特点,目前主要的开发技术是钻水平井进行分段规模压裂改造。为降低开发成本,在吉木萨尔凹陷开展了丛式水平井组"工厂化"压裂先导试验,但在压裂过程中出现井间干扰问题,直接影响邻井正常生产。分析了压裂水平井裂缝线性流特征。根据裂缝线性流特征,可以判断井间干扰是压裂裂缝沟通干扰还是压力波及干扰;并通过与微地震监测结果对比,验证了裂缝线性流特征分析方法的可靠性。
Jimusar tight reservoirs have the characteristics of extra-low permeability, large thickness, thin sand-mud interbed development. At present, the main development technology is large scale staged fracturing with horizontal wells. To reduce the development cost, the ‘factory–like' fracturing pilot test of cluster horizontal well groups are applied in Jimusar sag. However, the existing well interference was incurred during the fracturing process, which directly affected the normal production of neighbor wells. The characteristics of fracture linear flow in fracturing horizontal wells were analyzed. According to the characteristics of the fracture linear flow, it can be concluded that the interference between wells could be estimated, whether it is the communication disturbance of fracturing fracture or the interference of the pressure. The reliability of the method is verified by comparing with the micro seismic monitoring results.
出处
《石油地质与工程》
CAS
2018年第3期108-110,共3页
Petroleum Geology and Engineering
基金
国家重大科技专项"新疆大庆建设项目:试油及储层改造关键技术研究"(2012E-34-14)
