Cnpc USA Corporation

China National Petroleum Corporation

Beijing Huamei Inc.

Baker Hughes Corporation

Perry Batson

Jianpeng Yue

Peng Cheng

Damon Nettles

Kwami Roberts

Steve Rosenblatt

Namhyo Kim

Jeff Maynard

Nelson P Nguyen

Israel Torres

Shaogong Zhu

Meng Cai

Yongquan Xu

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

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 plurality of push rods. 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 lower cone has lower cone rod channels, and the push rods anchored on the retrieval mandrel slide through respective channels toward the upper cone. The packer system is run into the borehole with each rod in the first position relative to a tip end of 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. Each push rod can push the upper cone to return the slip device to the run-in position for retrieval of the packer system.

Retrievable packer with push rod release

A metallic seal for a 90&#xb0; valve features a generally rectangular shape in section that defines a chamber open to internal pressure that can enlarge the chamber to enhance the sealing effect. Sealing occurs at discrete locations at portions of the seal that are preferably rounded in shape. Overlapping ends that define the entrance to the chamber also are positioned to minimize excessive deflection and resulting plastic deformation that could close off the entrance to the chamber.

Pressure energized spring seal

Growing community of inventors

Houston, TX, United States of America

Perry Batson