摘要
目前,致密气藏压裂施工普遍存在破裂压力较高的难题。为了研究和解决这一问题,针对低渗致密砂岩气藏的特点,并结合鄂尔多斯盆地致密气藏压裂井存在的实际问题,在分析了影响鄂尔多斯盆地致密气藏压裂井压裂效果的主要因素的基础上,研究了不同射孔方式和射孔方位、孔密、孔深及孔径对裂缝延伸和破裂压力的影响规律,使用该思路进行压裂施工,能有效地降低地层破裂压力和提高产能,促进了致密气藏压裂技术的发展。
At present,high fracture pressure is a common problem in tight gas reservoir fracturing. In order to study and solve this problem,in view of the characteristics of low-permeability tight sandstone gas reservoirs,and in combination with the actual problems of fracturing wells in tight gas reservoirs in the Ordos Basin,based on the analysis of the main factors affecting the fracturing effect of fracturing wells in tight gas reservoirs in the Ordos Basin,the influence laws of different perforation methods and perforation orientation,perforation density,hole depth and hole diameter on fracture extension and fracture pressure were studied,and the idea was used for fracturing construction,It can effectively reduce formation fracture pressure and improve productivity,and promote the development of tight gas reservoir fracturing technology.
作者
雷鸿
Lei Hong(China Oilfield Services Limited,Korla Xinjiang 841000)
出处
《石化技术》
CAS
2022年第12期151-153,共3页
Petrochemical Industry Technology
关键词
致密气藏
破裂压力
定向射孔
tight gas reservoir
Burst pressure
Directional perforation