1
Klaus B Huber, Steven W Henderson, James W Babineau: Downhole depth correlation. Schlumberger Technology Corporation, Fish & Richardson P C, November 28, 2000: US06151961 (39 worldwide citation)

A tool for initiating a downhole function in a subsurface well, such as a cased well. The tool has memory adapted to store a well-specific reference pattern of one or more downhole well characteristics as a function of position along the well, one or more sensors responsive to the downhole well char ...


2
Wenbo Yang, Alfredo Fayard, Robert A Parrott, Klaus B Huber, Jeffrey P Meisenhelder, A Glen Edwards, Steven W Henderson, Joseph B Edone, Wanchai Ratanasirigulchai, Manuel Gonzalez: Method and apparatus for orienting perforating devices and confirming their orientation. Schlumberger Technology Corporation, Van Someren PC, Bryan P Galloway, Jaime A Castano, February 21, 2006: US07000699 (35 worldwide citation)

The present invention provides an apparatus and method of orienting perforating gun strings. 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. Additional weight may be ...


3
Mark Vella, Joe C Hromas, Bennie Gill, Larry Grigar, Steven W Henderson: Techniques and systems associated with perforation and the installation of downhole tools. Schlumberger Technology Corporation, Fred G Pruner, Kevin B McGoff, Bryan P Galloway, October 9, 2007: US07278484 (23 worldwide citation)

A technique to install a tool in a well includes running the tool into the well and fixing the tool to the well with a fixing agent without pumping the fixing agent through a central passageway of the tool. The tool may be a perforating gun that includes a casing body that includes a longitudinal ax ...


4
Manuel Marya, Wenbo Yang, Lawrence A Behrmann, Steven W Henderson, Robert Ference, Brindesh Dhruva: Debris-free perforating apparatus and technique. Schlumberger Technology Corporation, Kevin B McGoff, Rodney Warfford, August 17, 2010: US07775279 (21 worldwide citation)

An apparatus that is usable with a well includes a perforating system that is adapted to be fired downhole in the well. The perforating system includes a component, which includes an alloy that has a negative corrosion potential and is unable to passivate, or self-protect, while deployed in the well ...


5
Mark Vella, Joe C Hromas, Bennie Gill, Larry Grigar, Steven W Henderson: Techniques and systems associated with perforation and the installation of downhole tools. Schlumberger Technology Corporation, Trop Pruner & Hu P C, Bryan P Galloway, Jaime A Castano, December 26, 2006: US07152676 (14 worldwide citation)

A technique to install a tool in a well includes running the tool into the well and fixing the tool to the well with a fixing agent without pumping the fixing agent through a central passageway of the tool. The tool may be a perforating gun that includes a casing body that includes a longitudinal ax ...


6
Manmohan S Chawla, Joseph D Simich, Steven W Henderson, Robert K Bethel: Shaped charge for creating large perforations. Western Atlas International, Alan J Atkinson, May 19, 1998: US05753850 (14 worldwide citation)

An apparatus for generating a large perforation in a target such as a wellbore casing. A liner is positioned within a charge case lowered into a well. An explosive material is initiated to collapse the liner to form a material penetrating jet. A spoiler is positioned proximate to the liner to defocu ...


7
John R Whitsitt, Vladimir Vaynshteyn, Steven W Henderson: Well completion system having perforating charges integrated with a spirally wrapped screen. Schlumberger Technology Corporation, David G Matthews, Rodney V Warfford, Trop Pruner & Hu P C, July 13, 2010: US07753121 (9 worldwide citation)

An assembly that is usable with a well includes a base pipe, a screen and at least one perforating charge. The base pipe includes at least one radial port to communicate well fluid, and the base pipe has an outer surface. The screen is mounted to the base pipe and is adapted to at least partially su ...


8
Laurent E Muller, Larry L Grigar, Steven W Henderson, Klaus B Huber, Bennie C Gill, Rolf Ludolf, Gary L Rytlewski: Apparatus and method for inserting and retrieving a tool string through well surface equipment. Schlumberger Technology Corporation, Jeffery E Griffin, Brigitte Jeffery Echols, Trop Pruder & Hu P C, April 13, 2004: US06719061 (9 worldwide citation)

Well surface equipment is provided to seal around the outer surface of portions of tool sections as the tool sections are assembled or disconnected in a portion of the well surface equipment. The portion of the well surface equipment is isolated from wellhead pressure to enhance well operator contro ...


9
Manuel P Marya, Wenbo Yang, Lawrence A Behrmann, Steven W Henderson, Robert Ference: Dissolvable material application in perforating. Schlumberger Technology Corporation, Chad Sullivan, Rodney Warfford, Matt Abrell, January 1, 2013: US08342094 (8 worldwide citation)

A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a materi ...


10
John Whitsitt, Vladimir Vaynshteyn, Steven W Henderson: Integrated sand control completion system and method. Schlumberger Technology Corporation, Winstead PC, Kevin B McGoff, James L Kurka, June 16, 2009: US07546875 (3 worldwide citation)

An integrated sandface completion tool that can be positioned within a wellbore in a single trip and a method of providing a sandface completion in a wellbore. An embodiment of the integrated sandface completion tool includes a casing section having a casing wall, at least one explosive charge conne ...