Failure analysis and improvement application of liner suspension system in high temperature,strong alkali and high salt environment
Aiming at the failure of liner hanger caused by high temperature,strong alkali and high salt environment in Well Qiantan 2,the failure causes of liner hanger system in high temperature,strong alkali and high salt environment are analyzed.Through the high temperature rolling test of aluminum alloy,brass,cast iron,13Cr,steel,P110 steel,rubber and other materials in the original well mud of Well Qiantan 2,the corrosion effect of high temperature,strong alkali and high salt environment on different materials is further recognized,which provides a strong basis for the subsequent improvement and applica-tion of tools.The liner suspension system has been improved by using P110,13Cr,brass,salt and alkali resistant high temperature fluororubber and other materials.The field application has proved that the im-proved liner suspension system has good resistance to high temperature,strong alkali and high salt corro-sion.
Liner hangerCorrosionFloating collar and shoeRubber plug
NETL
NSTL
万方数据
