Halliburton Energy Services, Inc.

Enventure Global Technology Inc.

Tance Jackson

Clark E Robison

Harold Kent Beck

Ian Phillips

Elbert Juan Smith

Arthur Isadore Burke

Kevin Karl Waddell

Michael Bullock

Joel Gray Hockaday

Lev Ring

David Paul Brisco

Robert Lance Cook

Larry A Kendziora

Scott Costa

John C Gano

Muchael Bullock

A tubular sleeve is coupled to and overlaps the threaded connection between a pair of adjacent tubular members.

Protective sleeve for threaded connections for expandable liner hanger

The end of an expandable liner hanger () provides a receptacle for another tubular liner ().

Seal receptacle using expandable liner hanger

The present inventions relate to improved apparatus and methods for radially expanding tubulars, such as tubing, casing and sand-control screen assemblies in a subterranean oil or gas well, and more specifically, to a variable diameter expansion tool for expanding downhole tubulars to varying diameters. In general, the inventions provide apparatus and methods for radially expanding a tubular, such as pipe, tubing, screen or screen assembly, deployed in a subterranean well by moving an expansion tool axially through the well. An automatically infinitely variable-diameter expansion cone tool is provided. A variable-diameter cone is provided, movable between an expanded position and a retracted position. The cone is enlarged to its expanded position and advanced through expandable components until a restriction is reached. At the restriction, the variable-diameter cone automatically retracts enough to allow the tool to continue advancing through the wellbore. When the restriction is past, the variable-diameter cone enlarges again to its expanded position.

Variable diameter expansion tool and expansion methods

A system of downhole communication and control is provided in methods and associated apparatus for data retrieval, monitoring and tool actuation. In a described embodiment, an item of equipment installed in a tubular string has a first communication device associated therewith. A tool conveyed into the tubular string has a second communication device therein. Communication is established between the first and second devices. Such communication may be utilized to control operation of the tool, retrieve status information regarding the item of equipment, supply power to the first device and/or identify the item of equipment to the tool.

Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation

Growing community of inventors

Plano, TX, United States of America

Tance Jackson