Schlumberger Technology Corporation

Thomas Allan

Rod W Shampine

Philippe Gambier

Edward Kent Leugemors

Joe Hubenschmidt

Jean-Louis Pessin

Larry Dale Welch

Ronnie Stover

Mike Lloyd

William Troy Huey

Paul Dwyer

David Milton Eslinger

Matthew R Hackworth

Rajesh Luharuka

Michael D Parris

John David Rowatt

Marc Allcorn

Alejandro Martinez

Brian Ochoa

William Huey Troy

Jing Hayes Chow

A method of pumping an oilfield fluid from a well surface to a wellbore is provided that includes providing a clean stream; operating one or more clean pumps to pump the clean stream from the well surface to the wellbore; providing a dirty stream including a solid material disposed in a fluid carrier; and operating one or more dirty pumps to pump the dirty stream from the well surface to the wellbore, wherein the clean stream and the dirty stream together form said oilfield fluid.

Split stream oilfield pumping systems

A mechanism for pressurized delivery of material into a well without exposure to a high pressure pump. The mechanism may include material delivery equipment that is coupled to the high pressure pump or other pressure inducing equipment through a material carrier that intersects a fluid line from the pump. The material carrier may include chambers that are reciprocated or rotated between positions that are isolated from the fluid line and in communication with the fluid line. While isolated from the fluid line, the chambers may be filled with oilfield material which may then be delivered to the fluid line when positioned in communication therewith. In this manner, a supply of the oilfield material may be retained in a substantially isolated state relative to the pump and components thereof which may be susceptible to damage from exposure to the oilfield material.

Oilfield material delivery mechanism

To perform a cleanout operation in a wellbore, a cleaning tool having a coiled tubing and an electrical pump assembly is run into the wellbore. The electrical pump assembly that is located in the wellbore is activated. In response to fluid flow generated by the electrical pump assembly, removal of debris from the wellbore is caused by directing fluid containing the debris into the coiled tubing for delivery to an earth surface.

Providing a cleaning tool having a coiled tubing and an electrical pump assembly for cleaning a well

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Paris, France

Thomas Allan