陆相低压页岩油体积开发理论技术及实践
焦方正

Theoretical technologies and practices concerning “volume development” of low pressure continental shale oil: Case study of shale oil in Chang 7 member, Ordos Basin, China
Fang-zheng JIAO
表1 不同两向水平主应力差下的裂缝特征及体积压裂实现难度
Table 1 Fracture characteristics and volume fracturing difficulty level under different difference of two horizontal principal stresses
(σH-σh)/MPa裂缝特征体积压裂实现难度
>10单条裂缝难度大,改造体积小
5~10以单条裂缝为主体积压裂有一定难度,改造体积不大
<5体积裂缝体积压裂容易,改造体积大