Research and Application of Double Opening Type of Pressure Sleeve

In the fracturing process, the pressure sleeve opening pressure often unusual circumstances, After Analyzing structure and principles of common pressure sleeve, analyzing and summarizing its problems encountered in the Sulige block, a reliable pressure sleeve is proposed and its structure and principle are also presented in this paper. The application of the sleeve in two adjacent wells of Sulige has also been compared and its detail application in the field has been introduced.