Weatherford/lamb, Inc.

Weatherford Technology Holdings, LLC

Smith International, Inc.

Drilex Systems, Inc.

Masx Energy Services Group, Inc.

A-z International Tool Company

Exxon Production Research Company

Hughes Tool Company LLC

Brown Oil Tools, Inc.

Masx Entergy Services Group, Inc.

Masx Energy Service Group, Inc.

A-z International Company

Thomas F. Bailey

Edmond, Jr Kagler

Campbell John E.

Thomas Floyd Bailey

James W Chambers

Don M Hannegan

John Edward Campbell

Ram Kumar Bansal

Simon John Harrall

Danny W Wagoner

Joe Noske

Nicky A White

David J Brunnert

Kevin Leon Gray

Paul L Smith

Christopher L McDowell

Richard J Segura

Roddie Robert Smith

Frederick Thomas Tilton

Mark F Gravouia

Timothy L Wilson

Andrew Antoine

David Iblings

Larry F Moeller

David Michael Haugen

David Pavel

Jonathan P Sokol

Joseph V Hebert

Melvin T Jacobs

Christopher L Mcdowell

Waybourn J Anderson

Lev Ring

Mike A Luke

Thurman B Carter

Adrian Vuyk, Sr

Michael J Lynch

Adrian Steiner

Marc David Kuck

Aristeo Rios, Iii

Mohammed Aleemul Haq

Nehal M Shah

Miroslav Mihalj

Aristeo Rios

Bernd-Georg Pietras

Ian D Smith

John Douglas Roberts

Thomas M Redlinger

Waybourn Anderson, Jr

Darryl A Bourgoyne

Robert Eugene Robertson

Roddie R Smith

Michael Nero

David J Vieraitis

Mark A Mitchell

Carl J Wilson

Teme Forrest Singleton

James N Strickland

Gerald Wes Don Buchanan

Geoff George

Monte Ira Johnson

William Alan Spielman

Raymond A Todd, Jr

William Allen Blizzard, Jr

Bill Menard

Carel W Hoyer

David R Woodruff

Andrew Arthur Barry

Guy LaMont McClung, Iii

Kevin W Smith

Manmohan Singh Kalsi

Robert E Williams

Allen Kent Rives

Shane P Hart

Thomas G Roesner

Guy Lamonte McClung, Iii

Scott McIntire

Christopher M Vreeland

Bruce D Swearingen

Patricio Daniel Alvarez

Graham Alexander Skinner

Michael Keith Sullivan

Arthur Warren Meeks

Jerry W Fisher

Hubert E Halford

David Peter Kippie

W L Lennon

Charles E Lancaster

Tom Fuller

Keith F Kruk

Andrew A W Barry

Thurman James Carter

Bin Xiao

Guy LaMonte McClung, Iii

Michael W Henson

Dustin G Howell

Stephanus Wilhelmus Maria Nas

Waybourn “Bo” J Anderson, Jr

Edmond Kagler, Jr

Richard Lee

Barry R Scott

Lee A Littlejohn

Roy W Rooyakkers

A mill for use in a wellbore includes a tubular housing having a bore therethrough, a plurality of pockets formed in a wall thereof, and a blade disposed in each pocket. Each blade includes a body having a first side opposite a second side, wherein the first side faces in a direction of rotation of the mill. The blade also includes a blade portion disposed on the first side of the body, wherein the blade portion has a first cutting face stepped relative to a second cutting face. Each blade is movable between a retracted position and an extended position, wherein a portion of the first side and the second side protrude from the housing in the extended position.

Section mill and method for abandoning a wellbore

A shifting tool for use in a wellbore includes a tubular housing having a bore formed therethrough; a tubular mandrel disposed in the housing and longitudinally movable relative thereto; and an engagement member moveable relative to the housing between an extended position, a released position, and a retracted position, wherein: the engagement member is movable from the retracted position to the extended position in response to movement of the mandrel relative to the housing, and the engagement member is further movable from the extended position to the released position in response to movement of the mandrel relative to the housing.

Remotely operated isolation valve

A mill for use in a wellbore includes a tubular housing having a bore therethrough and a plurality of eccentrically arranged pockets formed in a wall thereof and an arm disposed in each pocket. Each arm has a body portion and a blade portion extending from an outer surface of the body portion and is movable between an extended position and a retracted position. The mill further includes cutters disposed along each blade portion and a block disposed in each pocket and connected to the housing. Each block has a guide engaged with a mating guide of the respective body portion and an inner passage for providing fluid communication between the housing bore and the respective pocket. The mill further includes an actuator for extending the arms.

Milling system for abandoning a wellbore

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

A pressure control device for sealing about a tubular at a wellsite can include a rotatable member, at least two radial seals that sealingly contact the rotatable member, at least two fluid chambers, one chamber being exposed to the rotatable member between the radial seals, and a pump that pumps fluid between the chambers in response to rotation of the rotatable member. A method of operating a pressure control device at a wellsite can include providing at least two chambers in a bearing assembly of the pressure control device, and regulating pressures in the chambers via a valve system in communication with both of the chambers.

Radial seal pressure reduction using internal pump

A method for drilling a wellbore includes disposing a tubular string in the wellbore, wherein the tubular string includes a drill bit disposed at a bottom and a flow sub disposed on a top; injecting drilling fluid through a bore valve in the flow sub to rotate the drill bit; moving a sleeve in the flow sub to engage and close the bore valve; moving the sleeve independently from the bore valve to expose a flow port formed through a wall of the flow sub; and injecting the drilling fluid into the flow port while adding a stand to the top of the tubular string, wherein injection of drilling fluid into the tubular string is continuously maintained between drilling and adding the stand to the tubular string.

Three-way flow sub for continuous circulation

A system and method is provided for a low profile rotating control device (LP-RCD) and its housing mounted on or integral with an annular blowout preventer seal, casing, or other housing. The LP-RCD and LP-RCD housing can fit within a limited space available on drilling rigs. An embodiment allows a LP-RCD to be removably disposed with a LP-RCD housing by rotating a bearing assembly rotating plate. A sealing element may be removably disposed with the LP-RCD bearing assembly by rotating a seal retainer ring. Alternatively, a sealing element may be removably disposed with the LP-RCD bearing assembly with a seal support member threadedly attached with the LP-RCD bearing assembly. The seal support member may be locked in position with a seal locking ring removably attached with threads with the LP-RCD bearing assembly over the seal support member. Spaced apart accumulators may be disposed radially outward of the bearings in the bearing assembly to provide self lubrication to the bearings.

Low profile rotating control device

Latch position indicator systems remotely determine whether a latch assembly is latched or unlatched. The latch assembly may be a single latch assembly or a dual latch assembly. An oilfield device may be positioned with the latch assembly. Non-contact (position), contact (on/off and/or position) and hydraulic (flowmeter), both direct and indirect, embodiments include fluid measurement systems, an electrical switch system, a mechanical valve system, and proximity sensor systems.

Latch position indicator system and method

A method for milling a tubular cemented in a wellbore includes deploying a bottomhole assembly (BHA) into the wellbore through the tubular, the BHA comprising a window mill; and extending arms of the window mill and radially cutting through the tubular, thereby forming a window through the tubular, wherein a body portion of each window mill arm engages and stabilizes from an inner surface of the tubular after a blade portion of each window mill arm cuts through the tubular.

Rotating control device related oilfield pressure control is accomplished by upper and lower seal members configured to seal around a tubular, a chamber defined between the upper and lower seal members; and wherein fluid enters and/or exits the chamber via some device or structure. Such a device or structure could be a relief valve, a first accumulator, a pressure control valve, an orifice, and/or a void space in a seal member in a location which contacts the tubular.

Seal assemblies in subsea rotating control devices

Growing community of inventors

Houston, TX, United States of America

Thomas Floyd Bailey