The Permian Lucaogou Formation in Jimsar is rich in continental shale oil reserves. There are two “sweet spot” developed in the vertical direction. As the development progresses advances

the lower “sweet spot” becomes the main development layer. It has the characteristics of large depth and strong heterogeneity

which makes the development difficult. With the impact of market environmental pressure

it is urgent to optimize the stimulation technology to realize the low-cost development of shale oil. Based on the geological characteristics

the methods of numerical simulation

experiments

and fracture monitoring are used to study the cluster spacing

sand-carrying performance of slick water

conductivity of proppant and so on. Then

a series of low-cost tests such as intensive stage

temporary plugging fracturing

quartz sand replacement

and slick water sand injection have been carried out. The application effect showed that the comprehensively use of low-cost stimulation technology can reduce the cost by at least 30 %

meanwhile

maintain the output. It provides a reference for the subsequent development for Jimsar shale oil.