Patent ID: 11885196
Assignee: CHINA NATIONAL PETROLEUM CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 13:
14. A method for downhole operations, comprising the steps of:
running a packer system, according to claim 1, in a borehole, with said slip device in said run-in position, said lock ring in said unlocked position, and said slotted retrieval sleeve in said first position;
placing said packer system at a location in the wellbore;
moving said upper cone closer to said lower cone along said packer mandrel;
sliding said slip device from said run-in position to said set position;
transitioning said lock ring from said unlocked position to said locked position with said packer system at said location so as to hold said packer system with said slip device in said set position and with said slotted retrieval sleeve in said first position;
moving said slotted retrieval sleeve from said first position to said second position, said slip device being in said set position with said slotted retrieval sleeve in said second position;
transitioning said lock ring from said locked position to said unlocked position with said packer system at said location and with said slotted retrieval sleeve in said second position;
moving said slotted retrieval sleeve from said second position to said third position;
pushing said upper cone further from said lower cone along said packer mandrel concurrent with the step of moving said slotted retrieval sleeve from said second position to said third position;
sliding said slip device from said set position to said run-in position so as to release said packer system from said location; and
retrieving said packer system with said slip device in said run-in position and with said slotted retrieval sleeve in said third position.