Schlumberger Technology Corporation

Other

Jerry D Campbell

Robert A Parrott

David Foster Mills

Mark C Duhon

Bennie Gill

Cynthia L Hickson

Ronald Lutz

Lawrence A Behrmann

Kuo-Chiang Chen

James S Almaguer

Chenghua Han

Simon L Farrant

Harvey Williams

Wayne Nivens

Geir Melhus

Kjell M Randeberg

Robert Ferrence

The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun housing. An adapter is provided intermediate the tool string that facilitates conveyance of the gun string downhole. Additionally, the adapter enables the gun string to rotate independent of the tool string.

Method and apparatus for orienting perforating devices

A perforating device has an elongated tubular housing and a loading device supporting a plurality of shaped charges. The loading device and the shaped charges are located inside the housing. A volume reduction device is adapted to fit within the loading device and to conform to the profile of the shaped charges thereby filling open volume in the housing.

Perforating guns with reduced internal volume

A connector assembly for interconnecting wellbore tools to form a tool string include a first adapter having a tool end connectable to a first wellbore tool and an alignment end, a mandrel that has a pin end and an opposing end, the pin end being matable with the alignment end of the first adapter, a second adapter having an adapter end connectable to a second wellbore tool and a second end connected to the opposing end the mandrel and a sleeve that has a first open end and a second open end, the sleeve is moveably disposed over and in connection with the mandrel and the second open end is connectable with the alignment end of the first adapter for interconnecting the first adapter and the second adapter. The connector assembly facilitates hands-free make-up and break-out of tool strings.

Connector assembly and method of use

A weight spacer apparatus has a carrier which is tubular in shape and a spacer tube which is also tubular in shape for insertion into the carrier. The weight spacer apparatus also has a plurality of weight bars which may be inserted into the spacer tube after the spacer tube is inserted into the carrier and which are also removable from the spacer tube. In one embodiment, a weight tray is inserted into the spacer tube for receiving the weight bars, and the weight tray may be fabricated from half-round tubing with a welded plate to cover the diametric opening. In another embodiment, a center plate is attached inside the spacer tube along the length of the spacer tube to divide the spacer tube into first and second compartments.

Weight spacer apparatus

An apparatus and method provides an anchor device for use in a wellbore that comprises an actuator assembly responsive to an actuating signal, an operator coupled to the actuator assembly, and an engagement member moveable to a set position by the operator when actuated by the actuator assembly to set the anchor device. The anchor device may be employed in various tool strings, such as a perforating tool string. In one arrangement, the anchor device provides an automated retraction mechanism that is activated after a predetermined delay. In another arrangement, a retract signal may be supplied to activate the retraction mechanism.

Downhole anchoring tools conveyed by non-rigid carriers

An electrical coffee pot positionable in a vehicle and operable from a cigarette lighter receptacle comprising a base plate constituting a lower component positionable in a vehicle in a horizontal disposition with an electrical switch movable between an on and off orientation and an electrical resistance wire operable in response to the orientation of the switch, the base also including a tube for the passage of water for use in brewing coffee with the electrical resistance wire spirally wound therearound to heat water passing therethrough, the electrical resistance wire coupled to an electrical cord having at one end a device positionable in the cigarette lighter receptacle of the vehicle to power the resistance wire; an upper component horizontally disposed and adapted to receive heated water from the tube in the base plate with a drawer adapted to receive the coffee to be brewed from the passage of water therethrough; a vertically disposed back component coupling the lower component and the upper component; a water tank positioned adjacent to one side of the device and coupled to the lower plate, upper plate and back plate; and the water conveying tube having a lower end within the lower extent of the tank extending through the lower component and unit through the electrical resistance wire, then upwardly through the back component and terminating at a location in the upper component over the coffee to be brewed.

Electrical coffee pot positionable in a vehicle and operable from a

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Katy, TX, United States of America

Jerry D Campbell