亚松迪地区泥岩裂缝储层形成主控因素与油气成藏

亚松迪地区巴楚组下泥岩段泥岩裂缝型储层发育，裂缝主要以高角度裂缝和斜交缝等构造裂缝为主，其次为层理缝．裂缝对储层的渗透率贡献明显。研究认为，裂缝的形成主要与构造应力、构造位置和岩性有关，其中构造作用是重要的造缝作用．脆性矿物的体积分数是影响裂缝发育程度的关键因素。研究区内泥岩裂缝储层中油气显示活跃，证实该区存在成藏过程，常规测试能获取一定的产能，若采取压裂等相关有效的工程技术改造措施，该区泥岩裂缝油气藏具备一定的勘探价值。

Main controlling factor of mudstone fracture reservoir formation and hydrocarbon accumulation in Yasongdi Area

The mudstone fracture reservoirs develop in lower mudstone section of Bachu Formation in Yasongdi Area. Fractures are mainly high angle fractures and oblique tectonic fractures, followed by bedding sewing. Fractures have obvious contribution to reservoir permeability. The study shows that the causes of fracture are mainly related to tectonic stress, tectonic position and lilhology, in which tectonic function is the most fundamental fracturing effect. Brittle mineral content is the key factor to influence the development of frac.tures. In the study area, the oil and gas shows in mudstone fracture reservoirs arc active, which have confirmed the existenc.e of the accumulation process and conventional testing can obtain productivity. If some measures tor fracturing and other related engineering are taken, the mudstone fracture reservoirs in this region have a certaiu exploration value.