Weatherford/lamb, Inc.

Weatherford Technology Holdings, LLC

Baker Hughes Corporation

Baker Oil Tools, Inc.

Weatherford U.s., Inc.

Frederick Thomas Tilton

David Michael Haugen

David J Brunnert

Albert C Odell, Ii

Thomas Floyd Bailey

Simon John Harrall

Richard Lee Giroux

Robert P Badrak

Brent James Lirette

Paul David Metcalfe

Tuong Thanh Le

Joe Noske

Patrick Glen Maguire

Paul L Smith

Gregory Guy Galloway

Christopher L McDowell

Wei Xu

Karsten Heidecke

Roddie Robert Smith

Mark J Murray

Peter Barnes Moyes

Kevin Leon Gray

William A Blizzard, Jr

Michael W Hayes

John Douglas Roberts

Thomas M Redlinger

Neil A A Simpson

Doyle Fredric Boutwell, Jr

Michael J Moody

Michael T Smalley

Andrew Antoine

Tommy Laird

Steve R Delgado

Joseph Ross Rials

Christopher M Vreeland

David J Havens

Ralph D Wright

Thomas R Bailey

Joseph D Mills

Michael Moody

Christopher L Mcdowell

Albert C Odell

Guy LaMont McClung, Iii

Clark E Robison

Paul B Wilson

Kevin W Smith

Douglas James Murray

Mike A Luke

Don M Hannegan

Thurman B Carter

David Graham Hosie

Tarald Gudmestad

Ram Kumar Bansal

Paul James Wilson

Charles Gerard Brunet

Wayne Rudd

Charles W Pleasants

Clayton Plucheck

Waybourn Anderson, Jr

Mark W Schnitker

Peter Budde

James G Martens

Michel Bouchard

Simon J Harrall

Roger A Weinberg

Roddie R Smith

Michael Nero

Graham Alexander Skinner

Doug Durst

Erik Peter Eriksen

Paul J Johantges

Ronald B Collins

Ronald E Bothner

Tom Fuller

David Nuth

Roy W Rooyakkers

Randy P Hutchings

Morgan C Salter, Iii

John David

Waybourn J Anderson

Ralph Wright

Ii Albert C Odell

Waybourn J Anderson Jr

Wei Jake Xu

Albert C Ii Odell

Thomas Laird

A method of drilling a wellbore includes drilling the wellbore through a formation by injecting drilling fluid through a drill string and rotating a drill bit. The drill string includes a shifting tool, a receiver in communication with the shifting tool, and the drill bit. The method further includes retrieving the drill string from the wellbore through a casing string until the shifting tool reaches an actuator. The casing string includes an isolation valve in an open position and the actuator. The method further includes sending a wireless instruction signal to the receiver. The shifting tool engages the actuator in response to the receiver receiving the instruction signal. The method further includes operating the actuator using the engaged shifting tool, thereby closing the isolation valve and isolating the formation from an upper portion of the wellbore.

Signal operated isolation valve

Embodiments of the present invention generally relate to extendable cutting tools for use in a wellbore. In one embodiment, a tool for use in a wellbore includes a tubular body having a bore therethrough, an opening through a wall thereof, and a connector at each longitudinal end thereof; and an arm. The arm is pivotally connected to a first piston and rotationally coupled to the body, is disposed in the opening in a retracted position, and is movable to an extended position where an outer surface of the arm extends outward past an outer surface of the body. The tool further includes the first piston. The first piston is disposed in the body bore, has a bore therethrough, and is operable to move the arm from the retracted position to the extended position in response to fluid pressure in the piston bore exceeding fluid pressure in the opening. The tool further includes a lock operable to retain the first piston in the retracted position; and a second piston operably coupled to the lock.

Extendable cutting tools for use in a wellbore

The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid flow path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.

Methods and apparatus for wellbore construction and completion

A pipe handling system for locating a pipe joint in a joining assembly that includes an internal joining tool and an external joining tool is provided. The system includes a gripper configured to grip a surface of the pipe joint; an elevator configured to pick up the pipe joint and position the pipe joint adjacent a string of pipe disposed in the external joining tool; and a deployment assembly coupled to the gripper, wherein the deployment assembly includes a cable that is used to position the internal joining tool inside the pipe joint.

Pipe handling system

Sealing elements have lubricating seal profiles for communicating fluid between the sealing elements and the sealed drill string tubular or other oilfield component while the sealed drill string tubular or other oilfield component rotates or moves vertically relative to the seal elements. The same fluid used for drilling may also be used for seal lubrication, such as water, drilling fluid or mud, well bore fluid or other liquid or gas. The sealing elements may be disposed with a seal housing, which may be positioned with a marine riser, or subsea without a marine riser. The seal housing may prevent rotation of the seal elements with the sealed drill string tubular or other oilfield component. Alternatively, the seal housing may be an RCD that allows the sealing elements to rotate. The lubricating seal profiles include a wave pattern, a saw-tooth high film pattern, a downwardly inclined passageway pattern, an upwardly inclined passageway pattern, and a combined upwardly and downwardly inclined passageway pattern. In one embodiment, a stripper rubber seal element may have a lubricating seal profile on the inwardly facing bore surfaces of both its nose and throat sections for sealing with drill string tubulars and other oilfield components having different diameters. Dual seals with two annular spaced apart sealing surfaces, with or without lubricating seal profiles, may seal with a drill string tubular or other oilfield component. In another embodiment, differential pressures across two seal elements may be managed by filling the cavity between the two sealing elements with cuttings-free drilling fluid, mud, water, coolant, lubricant or inert gas at desired amounts of pressure.

Lubricating seal for use with a tubular

Embodiments of the present invention include methods and apparatus for dynamically controlling pressure within a wellbore while forming the wellbore. In one aspect, one or more pressure control apparatus are used to maintain desired pressure within the wellbore while drilling the wellbore. In another aspect, pressure is dynamically controlled while drilling using foam to maintain a substantially homogenous foam flow regime within the wellbore annulus for carrying cuttings from the wellbore.

Managed pressure drilling

The present invention generally relates to a pipe handling system for use with a tubular joining system. In one aspect, a method of forming a string of pipe using a joining assembly at a wellbore is provided. The joining assembly includes an internal joining tool and an external joining tool. The method includes the step of picking up the pipe joint using an elevator. The method further includes the step of positioning a lower end of the pipe joint adjacent an end of a string of pipe disposed in the external joining tool. The method also includes the step of moving the internal joining tool from a first position to a second position relative to the elevator, wherein the second position is between the pipe joint and the string of pipe. The method further includes the step of forming a connection between the pipe joint and the string of pipe.

Method and apparatus for wellbore construction and completion

The present invention generally relates to an apparatus and a method for conveying and operating tools into a wellbore. In one aspect, a method of performing a downhole operation in a wellbore is provided. The method includes pushing a continuous rod into the wellbore, wherein the continuous rod includes a member disposed therein. The method further includes positioning the continuous rod proximate at a predetermined location in the wellbore and performing the downhole operation. In yet another aspect, a system for performing a downhole operation in a wellbore is provided.

Apparatus and methods for operating a tool in a wellbore

The present invention involves a method and apparatus for monitoring conditions downhole and/or manipulating downhole tools by placing electrical wire on a casing string while drilling with casing. Wire is inserted into a groove within the casing string while drilling with the casing string into a formation. The wire connects downhole equipment to surface equipment. Multiple casing strings may be drilled into the formation while wire is simultaneously inserted into a groove therein.

Wired casing

Growing community of inventors

Spring, TX, United States of America

Frederick Thomas Tilton