Schlumberger Technology Corporation

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Richard Lee Warns

Edward Harrigan

Allan Goldberg

Raphael Rogman

Pedro Hernandez

Vinod Chakka

Hao Liu

Kenneth R Goodman

Christian C Spring

Jose Escudero

Hikmet Andic

Jia Tao

Juan Carlos Luna Diaz

Tommy Nguyen

Indranil Ghosh

Andreas Hendrawinata

Sonia Ried James

Roman Munoz

Marcos Calderon

Jeremy Morrison

Anjali Vijay Dhobale

Kenneth Randall Goodman

A detonation module for a perforation tool includes a detonator, a switch circuit disposed in a fluid-sealed housing and electrically coupled to the detonator, a shielding circuit coupled to the switch circuit, an annular electrical contact electrically coupled to the switch circuit, and an annular, electrically conductive, compressive member to form a compressive electrical connection with an end of a perforation unit.

Detonation module

Embodiments may take the form of a perforating gun of modular assembly. The perforating gun may include at least one centralizing member at an interface between a loading tube and a carrier. Among modular components, the gun may also include an initiator assembly module that is electrically coupled to a modular feedthrough with a connector. The insert and the centralizing member may enhance axial cohesiveness of the modular gun. A shock absorbing mount may be located within the carrier and may receiving the initiator assembly module to provide added axial cohesiveness to the modular gun.

Cohesively enhanced modular perforating gun

A sensor system includes interconnected and axially spaced apart sensor devices deployed along an outer surface of a downhole tool string. The sensor devices including a sensor disposed with a protective housing and control electronics located remote from the sensor devices and operationally connected to the sensors.

Along tool string deployed sensors

A wellbore perforating device includes at least one perforating charge and an initiator. The initiator can include a ballistic train adapted to fire the at least one perforating charge. The ballistic train can include a detonator and a detonator cord. A ballistic interrupt shutter can be disposed between the detonator and the detonator cord. The ballistic interrupt shutter can prevent firing of the detonator cord.

Perforating gun with integrated initiator

Growing community of inventors

Sugar Land, TX, United States of America

Richard Lee Warns