Cnpc USA Corporation

China National Petroleum Corporation

Beijing Huamei Inc.

Other

Damon Nettles

Peng Cheng

Jianpeng Yue

Perry Batson

Michael Wilbert Mitchell

Matthew Patsy

Kwami Roberts

Jeff Maynard

The packer system includes a packer mandrel, an upper support or gage ring, a seal member, an upper slip device, an upper cone, a lower cone, a lower slip device, a setting sleeve, and a setting piston. The seal member has a run-in position and a set position. The set position seals against a borehole at a location in a borehole. The setting sleeve has a bypass position to transfer load of the setting piston away from the lower slip device and to the lower cone, the seal member, and the upper cone to set the seal member and upper slip device before the lower slip device. The setting sleeve has a released position to separate from the setting piston so that the load of the setting piston can finally be applied on the lower slip device for expansion of the lower slip device at the proper time and location.

Packer system with load bypass to prevent premature expansion

The retrievable packer system includes a packer mandrel, a lock ring, an upper cone, a lower cone, a slip device, a retrieval mandrel, and a slotted retrieval sleeve. The lock ring is attached to the packer mandrel, followed by the upper cone, the slip device, the lower cone, and the retrieval mandrel. The upper connection sleeve and the lower connection sleeve cover the packer mandrel so as to form a chamber in fluid connection with slip flow channels of the slip device. The packer system is run into the borehole with the slotted retrieval sleeve in the first position relative to the lower cone and the slip device in the run-in position. The packer system is set and can be locked at a location in the borehole. The slotted retrieval sleeve can push the upper cone to return the slip device to the run-in position for retrieval of the packer system.

Retrievable packer with slotted sleeve release

A setting adapter assembly for setting a plug is provided, it comprises a setting body, a crossover sub, a shear ring connecting the setting body and the crossover sub temporarily, a rotating dog carrier at a lower end of the setting body, a plurality of rotating dogs accommodated in the rotating dog carrier; an inner mandrel, The rotating dogs are in their vertical position to compress the plug during a process of setting the plug, and during a process of withdrawing, the rotating dogs rotate 90 degrees into their horizontal position driven by the inner mandrel to allow the setting adapter assembly pass through the plug.

Setting adapter assembly for plug

A straddle packer system includes an upper seal member, a lower seal member, an upper equalizing valve configured to equalize pressure across the upper seal member, a lower equalizing valve configured to equalize pressure across the lower seal member, and an anchor. The upper and lower seal members do not move when actuating the upper and lower equalizing valves, respectively, into an unloading position to equalize the pressure across the upper and lower seal members.

Straddle packer system

Growing community of inventors

Houston, TX, United States of America

Damon Nettles