Schlumberger Technology Corporation

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Prad Research and Development Limited

Pete Howard

Joseph P Varkey

Anthony Frank Veneruso

Byong Jun Kim

Fabien Cens

Frederic Pauchet

Gary P Bickford

Todor K Sheiretov

Willem Albert Wijnberg

Ramon Hernandez-Marti

Kevin J Zanca

Ryan Daniel

A method of forming a motor winding wire for use in an oilfield application can include providing a conductive core; layering an insulating polymer layer about the core for electrical isolation thereof; adding an outer polymer layer about the insulating polymer layer to provide contaminant resistance; providing a sealable casing that comprises an oil-fillable space; disposing the motor winding wire within the oil-fillable space of the casing; filling the oil-fillable space with oil; and sealing the sealable casing to seal the oil in the oil-fillable space.

Method of forming a motor winding and disposing the motor wire

To assemble a sensor array having plural sections, the sections of the sensor array are sealably attached, where the sections include sensors and cable segments. An inert gas is flowed through at least one inner fluid path inside the sensor array when the sections of the sensor array are being sealably attached.

Providing a sensor array

A motor winding wire. The motor winding wire may be configured for use in, and direct exposure to, a hydrocarbon environment. The motor winding wire may be electrically insulated by one polymer layer, whereas another, outer, polymer layer is employed to provide moisture resistance as well as other contaminant and hydrocarbon environment shielding to the underlying layer. Additionally, this manner of polymer layering over the motor winding wire is achieved in a manner cognizant of the limited dimension of the motor winding wire.

Motor winding wire for a hydrocarbon application

A cable release apparatus includes a housing and latch mounted at one end of the housing. The latch has a central opening and a plurality of projecting members extending into the housing. A releasable connector is mounted inside the housing. An actuator has one end disposed in the central opening in the latch and another end in contact with the releasable connector. The actuator is movable between a first position prior to activation of the releaseable connector and a second position wherein the releasable connector is activated. Prior to activation of the releasable connector, the latch is held in place by an interference fit between the projecting members and the housing. When the releasable connector is activated, the projecting members are deflected by applying tension to the latch, thereby releasing the latch from the housing.

Electrically controlled release device

An electrical feedthrough includes a connector body made of a metallic material, at least one contact pin inserted through a cavity in the connector body, and an insulating body made of a thermoplastic material formed between the connector body and the contact pin so as to provide a hermetic seal between the connector body and the contact pin.

Metal-sealed, thermoplastic electrical feedthrough

A method of securing and sealing an optical fiber within a bulkhead, the method includes forming a layer of a solder-compatible material over a diffusion barrier covering a metal-clad optical fiber; extending the optical fiber through a metallic housing, with a portion of the layer of solder-compatible material within the housing, the housing and the solder-compatible material defining a gap therebetween; and bridging the gap with a solder to secure the fiber to the housing and to form a pressure-tight seal between the fiber and the housing. In one embodiment, an optical feedthrough includes a metallic housing; a gold-plated optical fiber disposed in the housing, the fiber having a nickel layer disposed thereon and a gold layer disposed over the nickel layer; and a silver-containing solder disposed in the housing and connecting the fiber to the housing, the solder bridging a gap between the metallic housing and the solder-compatible material to form a pressure-resistant seal about the fiber.

Optical feedthrough and method of making same

A cable that has a longitudinal axis and includes four insulated primary conductors which extend along the cable and define interstices between adjacent primary conductors. At least one insulated secondary conductor has a wire gauge smaller than the primary conductors and extends about the longitudinal axis of the cable. The at least one secondary conductor is at least partially nested in one of the interstices. An armor shield surrounds the primary and secondary conductors.

Growing community of inventors

Bellville, TX, United States of America

Pete Howard