Zhongling Xiao

Zhi Zhang

Duo Hou

Jiawei Wang

Jian Ding

Taihe Shi

The invention discloses a device for testing strength and sealing performance of cement sheath after perforation, comprising a cement sheath curing maintenance simulation component, a perforation operation simulation component, and a cement sheath performance test component. By simulating the detonation effect and fluid-solid coupling effect, quantitatively testing the internal transverse crack and longitudinal crack propagation size, compressive strength and tensile strength, permeability, blowby pressure, blowby velocity and other parameters of the cement sheath, drawing the relation curve between different perforation distances and the maximum blowby pressure and permeability of the cement sheath, determining the perforation distance Hwhere the blowby of the cement sheath does not occur, determining the perforation distance Hto ensure the sealing of the cement sheath, and using min (H, H), the critical perforation distance that the cement sheath has sufficient strength to prevent blowby and meet the sealing requirements can be determined.

Growing community of inventors

Sichuan, China

Zhongling Xiao