储气库注采井环空带压监测与风险分级.pdf

年 月
·38· PETROLEUM TUBULAR GOODS & INSTRUMENTS 202 , , 266580, ;
. Oil and Gas CAE Technology Research Center China University of Petroleum Qingdao Shandong China
2 , , , 266580, )
Abstract
:In order to fully evaluate the wellbore safety of gas storage in the process of alternate injection and production, the paper summa-
rized the overview of failures about gas storage injection and production well at home and aboard and the main causes of several risk types,
discussed the main causes of risk classification, established analysis model for the gas storage well screen and the wellbore failures, provid-
ed the simplified process of safety management for gas storage annular pressure, perfected the monitoring and analysis system of annulus
pressure, and established the integrated management system of safety monitoring and accident grading for gas storage annular pressure. Fur-
thermore, the failure grade and the consequence grade of the factors of the annulus pressure accident were decided, and the final risk grade
of the different failure modes is determined by using the risk matrix method, which provided an evaluation basis for th