Schlumberger Technology Corporation

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Prad Research and Development Limited

Spyro J Kotsonis

Eric Lavrut

Attilio C Pisoni

Jacques J Orban

Iain Michael Cooper

Ruben Martinez

Stuart A Schaaf

Ives Daniel Loretz

Dinesh R Patel

Ashley Bernard Johnson

Syed Afaq Ali

Gary Martin Oddie

Keith A Moriarty

Jean-Michel Hache

Bryan Stamm

Alain P Dorel

Alejandro Camacho Cardenas

Henri Denoix

Dudi Abdullah Rendusara

Warren Zemlak

Daniel Codazzi

Michael R Johnson

Gilles C Cantin

Dimitrios K Pirovolou

Cedric Perrin

Tom Saunders

Fred Shakra

Phil Louden

Jo Acquaviva

Pierre-Jerome Acquaviva

Jeremy Hughes

Pat Patterson

Andreea Madalina Tatulescu

Alexandre G Kosmala

Andreea M Tatulescu

An electric submersible pump (ESP) can include a shaft; an electric motor configured to rotatably drive the shaft; a housing; a stack of diffusers disposed in the housing; impellers disposed in the housing and operatively coupled to the shaft; and a proximity sensor operatively coupled to the housing.

Proximity sensor system for electric submersible pumps

An anchoring system for a tool in a borehole is provided. The anchoring system comprising a tool body, anchoring members which are operable to extend from the tool body so as to deploy an anchor portion into contact with the borehole wall such that when deployed. The anchoring members act to support the tool body in a central region of the borehole. Moreover, the anchoring members are connected to an operating mechanism which links deployment of the anchoring members so as to distribute the anchoring force and position of the anchoring members in a controlled manner.

Anchoring systems for drilling tools

A shear valve utilizing an elastically responsive unibody seal member in operation. The unibody seal member is of unitary constriction and in terms of adjacent ends thereof and an energizing member disposed therebetween. Thus, governing of fluid flow through the metal valve may be achieved without undue concern over high pressure differentials, for example in a downhole environment. Further, the unitary construction of the seal member alleviates concern over mismatching tolerances and/or dimensions for separately assembled miniaturized components of the valve.

Elastically responsive unibody shear valve

A technique includes running a lower completion assembly into a well in a single trip. The lower completion assembly includes a screen, a first valve and a second valve. The technique includes performing a gravel packing operation using the lower completion assembly, where performing the gravel packing operation includes running a service assembly into the lower completion assembly to operate the first valve. The technique further includes removing the service assembly from the well and subsequently installing an upper completion assembly in the well. The installation of the upper completion assembly enables remote control of the second valve of the lower completion assembly for purposes of regulating the production of fluid from the well.

Completion assembly

A hydraulic manifold pump comprising a housing in which is located a first hydraulic circuit and a second hydraulic circuit. A bidirectional motor connectable to the first hydraulic circuit and the second hydraulic circuit, the bidirectional motor being able to activate the first hydraulic circuit when operable in a first direction, and being able to activate the second hydraulic circuit when operable in a second direction. The hydraulic manifold pump further compromises a hydraulic actuator having two hydraulic chambers being connectable to the first hydraulic circuit and to the second hydraulic circuit, and both the first and second hydraulic circuits being connected to and able to vent into a fluid reservoir.

Hydraulic manifold pump

A technique facilitates monitoring of conditions which are prone to cause scale precipitation around downhole equipment. The technique also enables a local, downhole reaction to the potential for precipitation of scale. A downhole scale monitoring and inhibition system may be provided with a measurement module and injection module. The measurement module monitors at least one downhole parameter indicative of the potential for scale formation. In response to data output from the measurement module, the injection module is operated to provide downhole, local injections of an inhibitor chemical.

Continuous downhole scale monitoring and inhibition system

An apparatus for moving tubing through a borehole is disclosed. The apparatus includes a surface injector assembly and a downhole injector assembly with a driving mechanism to move the tubing through the borehole, an anchoring system for securing the downhole injector assembly downhole to a cased portion of a borehole wall and connections for receiving a power supply form the surface. A method of moving tubing through a borehole is also disclosed. The method involves attaching a downhole injector assembly to a cased portion of a borehole wall sufficiently downhole such that the downhole injector assembly can supply weight to a drilling assembly, and injecting tubing through the borehole using the downhole injector assembly.

Downhole injector system for CT and wireline drilling

A drilling system, comprising a non-rotating conveyance system; a tool connected to the non-rotating conveyance system and including anchors by which the tool can be anchored in position when located in a borehole; a drill bit connected to the tool; a motor for rotating the drill bit; and a directional control system interposed between the tool and the drill bit; wherein, in use, whit the drilling system located in a borehole, the directional control system can be operates so as to displace the drill bit away from the axis of the borehole.

Directional control drilling system

A downhole communication device comprises a first energy harvesting device; a downhole transceiver in communication with the first energy harvesting device; an accumulator in communication with the energy harvesting device; and a microcontroller. The microcontroller manages communication between the first energy harvesting device, transceiver, and accumulator.

Downhole communication devices and methods of use

A system for drilling a lateral hole departing from a main well. The system comprises a motor assembly () including a motor () to generate a rotating torque, an axial thruster () to generate an axial force, a blocking system () to fix the motor and the axial thruster downhole. The motor assembly further includes a drive shaft () to transmit the rotating torque. The system further comprises a first and second connector () for transmitting the rotating torque and the axial force from the motor assembly to a drill string assembly. The first connector is connectable to the drill string assembly so as to transmit the axial force only to the drill pipe (), and to transmit the rotating torque to a further drive () shaft positioned within the drill pipe. The second connector () is connectable to the drill string assembly so as to transmit both the axial force and the rotating torque to the drill pipe ().

Downhole drilling of a lateral hole

An apparatus for borehole cleaning comprises a tubular conveyance extending from the surface into a borehole to a region to be cleaned, a motor mounted at the end of the tubular conveyance that in use is introduced into the borehole, a pump connected to the motor and having a nozzle, and a power cable extending trough the tubular conveyance from the surface to provide power to the motor, The pump is arranged such that, when positioned in the borehole and operated by the motor, the pump withdraws material from the borehole through the nozzle and pumps it into the tubular conveyance to the surface.

Borehole cleaning using downhole pumps

A system and method are provided for drilling a wellbore. The wellbore is formed with a drilling tool that cuts through a formation. A pumping system removes cuttings from the drilling tool and also transports the cuttings along at least a portion of the wellbore formed behind the drilling tool.

System and method for drilling wellbores

A method and downhole tool are presented herein for driving completion equipment in a borehole. The method comprises the steps of positioning the completion equipment in the borehole; and moving the completion equipment along the borehole by operation of a downhole driving tool connected to the completion equipment. Operation of the driving tool comprises accumulating energy in the driving tool and releasing the energy to force a moveable member against an impact surface in the driving tool to provide a driving force which is applied to the completion equipment to move the completion equipment in the borehole, wherein the step of accumulating energy in the driving tool comprises providing energy to the driving tool by means of an energy source located at the surface selected from the group consisting of an electrical energy source provided by a wireline cable, a hydraulic energy source provided by a pipe, and combinations thereof.

Methods and apparatus for placement of well equipment

The invention provides a drilling system for use in a borehole through an underground formation, comprising: a drilling assembly including a drill bit for drilling through the formation and a drilling drive; conveyance means including a conveyance drive connected to the drilling assembly and operable to move the drilling assembly through the borehole, wherein the conveyance drive is operable to move the drilling assembly along the borehole into a drilling position and the drilling drive is operable to urge the drill bit into contact with the formation when drilling takes place in the drilling position.

Dual tractor drilling system

A technique that is usable with a well includes running a motor into the well and actuating the motor to turn a drill bit. The motor is used to pump well fluid from the well.

Growing community of inventors

Houston, TX, United States of America

Spyro J Kotsonis