After the second section of the H2-X horizontal well in Changqing Oilfield was fractured in August 2018, the shallow casing was pressed at the third stage of fracturing, and the pressure was 48 MPa. After analysis, the fracturing fluid and proppant form a supporting crack in the shallow layer and communicate with Luoshui. Test water absorption 2m3 / min and it does not compress. After 2 months of unremitting efforts of our company, continuous PGS gel plugging agent and G-grade cement leakage, ERS sealant, the final sealing was successful, the project acceptance test pressure 55MPa qualified. During the period from November to December 2018, Party A carried out the subsequent 16-stage fracturing operation on the well and all the fracturing was successfully completed. The maximum pumping pressure during the subsequent fracturing process is 48 MPa for 4 hours. The project successfully saved a tight oil horizontal well for the customer in a short period of time, which provided the possibility of re-fracturing the well. This fully demonstrates that our company has strong technical capabilities and excellent working ability, which enhances our company's corporate image and brand effect in the field of plugging, and lays a good foundation for our company's subsequent wellbore integrity rebuild projects. Celebrate EverGreen's innovation and precedent for high leakage and strong plugging! I hope that all employees of our company can make persistent efforts and create new achievements! |