CHD盆地南翼山低渗裂缝储层潜在伤害因素分析

The Potential Damage Fractor Analysis of Low Permeability and Fracture of Nanyishan Reservoir in CHD Basin

通过对南翼山区域主要含油气层段储层地质特征的详细研究,得出该储层岩石类型为非典型碎屑岩储层。岩石岩性划分为灰泥岩类、砂岩类、泥岩类及风暴岩类四种类型。南翼山油田物性总体较差,属典型中-低孔隙度、低-特低渗透率储层。孔隙类型主要包括粒间孔隙、溶蚀孔隙、微孔隙和微裂缝,储层中的微裂缝和敏感性损害是南翼山油田主要的潜在损害因素。

Reservoir in the mountain region of the southern wing of the main oil and gas bearing geological characteristics of the study, to obtained the reservoir rock types of atypical clastic reservoir lithology is divided into the line mudstone, sandstone, mudstone and storm rocks are four types of physical properties. The overall propert ies of Nanyishan oilfield is poor, is typical low porosity, low-ultra low permeability reservoirs, pore types, inclu-ding the intergranular pores, pores, micro-pores and micro cracks, the micro-cracks in the reservoir and the sensi- tivity of damage is the potential damage Nanyishan oilfield factors.