1
Ruben Martinez, Jan W Smits: Modular downhole tool system. Schlumberger Technology Corporation, Bryan L White, Kevin P McEnaney, Brigitte Echols, July 1, 2008: US07394257 (26 worldwide citation)

A downhole tool for formation logging includes a tool body configured to move in a borehole; and at least one sensor module mounted in at least one mounting location on the tool body, wherein the at least one sensor module is interchangeable with other sensor modules that make different measurements ...


2
Attilio C Pisoni, Ruben Martinez, Spyro Kotsonis, Stuart Schaaf: Rotary steerable drilling tool. Schlumberger Technology Corporation, Brigitte L Echols, John Ryberg, January 4, 2005: US06837315 (19 worldwide citation)

The invention refers to a rotary steerable drilling tool having a tool collar and a bit shaft. The bit shaft is supported within the tool collar for pivotal movement about a fixed position along the bit shaft. Moreover, the rotary steerable drilling tool includes a variable bit shaft angulating mech ...


3
Max E Spencer, Ruben Martinez: Anchoring system for use in a wellbore. Schlumberger Technology Corporation, Michael L Flynn, David Hofman, Jody Lynn DeStefanis, February 15, 2011: US07886834 (15 worldwide citation)

A technique enables anchoring of a tool in a wellbore. The technique utilizes one or more arms pivotably mounted to a structure for movement between a radially inward position and radially outward position that anchors the tool to a surrounding wall. A wedge component is positioned to selectively en ...


4
Ruben Martinez, Chuanwen Sun: 3D prestack time migration method. PGS Americas, E Eugene Thigpen, November 30, 2004: US06826484 (15 worldwide citation)

A method is disclosed for migrating seismic data. The method includes selecting an image point and generating an initial model of seismic velocity with respect to time. The initial model includes substantially horizontal layers each having a selected interval velocity and a selected thickness. A tra ...


5
Keith A Moriarty, Michael R Johnson, Attilio C Pisoni, Ruben Martinez, Spyro Kotsonis, Alain P Dorel, Pat Patterson, Stuart Schaaf: Directional casing drilling. Schlumberger Technology Corporation, Jennie Salazar, Victor H Segura, Dale V Gaudier, February 28, 2006: US07004263 (14 worldwide citation)

A directional casing drilling system including a casing string for rotation of a drill bit, a shaft coupled to the casing string, and a sleeve having pads that are hydraulically extensible. The sleeve may be positioned about a portion of the shaft. The invention may also include a tube connecting th ...


6
Jiaxiang Ren, Steve Kelly, Ruben Martinez: Method of extended recursive f-k migration. PGS Americas, October 15, 2002: US06466873 (12 worldwide citation)

A method of migrating seismic event data in the presence of a vertically time-varying velocity field defined by a migration velocity function is provided. The method comprises approximating a migration velocity function by constant stepwise stage velocities. The seismic event data is time stretched ...


7
Ruben Martinez Vera: Method and apparatus for conversion of a standard automobile top to a detached roof and/or T-top model. Gunn Lee & Jackson, April 18, 1989: US04821394 (11 worldwide citation)

An apparatus and method for modifying the roof of an automobile so as to enable the automobile to be easily converted from a detached roof style to a T-top style is disclosed. The method involves the preparation and removal of a portion of the existing vehicular roof. After reinforcement of the wind ...


8
Ruben Martinez, Jan Smits, Reza Taherian, Brian Clark: System, apparatus, and method of conducting measurements of a borehole. Schlumberger Technology Corporation, Darla Fonseca, Brigitte L Echols, Charlotte Rutherford, March 2, 2010: US07669668 (10 worldwide citation)

A method is provided for conducting measurements of a borehole while drilling the borehole in a geological formation. First, a rotatable drilling assembly is provided that has, at a forward end, a drill bit and a borehole measurement tool connected rearward of the drill bit. The measurement tool inc ...


9
Ruben Martinez, Matthew Billingham, Todor Sheiretov, Paul Beguin: Intervention tool with operational parameter sensors. Schlumberger Technology Corporation, Rodney Warfford, David Cate, Jaime Castano, October 27, 2009: US07607478 (9 worldwide citation)

An intervention tool for use inside a wellbore is provided that includes an intervention module capable of performing an intervention operation downhole, and a drive electronics module in communication with the intervention module and configured to control the intervention module. The tool also incl ...


10
Ruben Martinez, Max E Spencer: Low stress traction system. Schlumberger Technology Corporation, Michael Flynn, Jody DeStefanis, Charlotte Rutherford, October 16, 2012: US08286716 (9 worldwide citation)

A technique enables anchoring of a tool in a wellbore. The technique provides traction against a well component without creating high stress concentrations that weaken the well component. An anchoring device comprises anchoring members that are selectively movable to an expanded configuration for an ...