摘要
乌尔禾地区风城组油藏具有典型的裂缝-孔隙双重介质特征，属低孔-特低渗储层，基质孔隙对产能的贡献较小，储集空间和渗流通道主要为裂缝。裂缝主要分为构造缝、泄水缝2大类，整体以构造缝为主。裂缝展布与断裂相关性较强，近断裂带裂缝密度较大，主要为构造缝（张性构造缝、压性构造缝）发育带；稍远断裂带主要为张性构造缝发育带，其中与深湖-半深湖区沉凝灰岩发育带叠合部位为泄水缝-张性构造缝沟通带。泄水缝-张性构造缝沟通带对产能的贡献最大。裂缝预测成果得到油田现场钻井充分验证。成果应用于新疆油田乌尔禾地区风城组评价井位部署，油田现场应用效果良好，为新疆油田深部储层增储上产提供了技术支撑。
There are typical dual media features of both fracture and pore in Fengcheng Formation oil reservoirs of Wuerhe region, which are characterized by low porosity and low permeability; the contribution of matrix pores to the productivity is rather limited, the accumulation space and flow channel are mainly located in fractures that are generally classified into structural and discharge ones and the previous fractures possess the main form as a whole. Fracture through-going has more closer relation with faults, the fracture density is higher near the fault belts where the structure fractures （ tensional and compressional ones ） are well developed ; and more over the tensional structur- al fracture belts are well developed a little far from the fault belt, among them, the overlapped part of the well-de- veloped bedded tuff in deep lake-semi deep lake region becomes the communicating belt between the discharge frac- tures and tensional structural fractures. The above belt makes the biggest contribution to the productivity. The pre- dicted achievements stated above have been fully verified by the oilfield drilling, and furthermore the results are applied in the arrangement of the appraisal well location in Fengcheng Formation of Wuerhe region of Xinjiang Oilfield. Much favorable effects are gained in the field practice and furthermore provide technical supports to the reserves enhancement and production increase for the deep reservoirs of Xinjiang Oilfield.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2012年第2期39-42,共4页
Petroleum Geology & Oilfield Development in Daqing
基金
勘探生产公司专项“准噶尔盆地西北缘火成岩储层评价及有效开发研究”（2009ZX0806-01）资助.
关键词
张性构造缝
压性构造缝
泄水缝
3Dmove曲率法
评价部署
tensional structural fracture
compressional structural fracture
discharge fracture
3Dmove curvaturemethod
evaluation and arrangement
