Cnpc USA Corporation

Anthony Tran

Jianpeng Yue

Yu Liu

Peng Cheng

Xiongwen Yang

Matthew Patsy

Jeff Maynard

Jianhui Xu

Anthony Rushing

The apparatus prepares a downhole tool component, particularly a slip for a plug that seals zones in a wellbore. The apparatus includes a casing holder, a cone insert, and a cap. There is a bottom center connector to hold the cone insert within the casing holder. There are a plurality of spacing bolts, and a top center connector to hold the slip within the space between the cap, the cone insert, and the casing holder. The top center connector can adjust distance between the slip and the cone insert so that the coating on the ramp surface of the slip has a uniform thickness. The invention includes the method of using the apparatus to prepare the slip with coating of uniform thickness to removably engage another component of the apparatus.

Apparatus and method for preparing a downhole tool component

A support ring prevents an elastomer seal from extruding. The support ring is expanded and supports the expanded seal, preventing the elastomer seal failing due to extrusion.

Mechanical support ring for elastomer seal

A plug assembly includes a cone assembly, a sealing ring, a slip device of a plurality of blades, a plurality of spaces defined by adjacent blades, a plurality of support lugs, and a setting ring. The setting ring moves from a first setting distance relative to the cone assembly to a second setting distance closer to the cone assembly to radially expand the sealing ring, slip device, and spaces to install the plug assembly at the downhole location. The support lugs are aligned with the spaces to prevent extrusion of the sealing ring into the spaces and radially expand when the blades and spaces radially expand. The support lugs can be separate from each other, overlap, or interlock. The method of installation includes radially expanding the sealing ring, when the sealing ring is separated from the spaces formed by the blades of the slip device.

Plug assembly

The isolation valve assembly includes a ball member stabilized relative to a ceramic ring, an upper ball housing and a lower ball seat with a set of shifting bars, a set of locking bars, and a set of supporting bars. The shifting bars rotate the ball member between opened and closed configurations, while the locking bars and supporting bars stabilize the ball member. The supporting bars are off set from the shifting bars and locking bars, and the supporting bars are anchored to the assembly separate from the locking bars and shifting bars. The actuation of the shifting bars is independent from the locking bars and the supporting bars so that the ball member can be held in the opened or closed configuration with more stability.

Growing community of inventors

Kemah, TX, United States of America

Anthony Tran