1
Ohmer Herve: Apparatus for establishing branch wells from a parent well. Anadrill Int, Schlumberger Services Petrol, February 11, 1998: EP0823534-A1 (130 worldwide citation)

A method and apparatus for creating multiple branch wells from a parent well is disclosed. According to a first embodiment of the invention a multiple branching sub is provided for placement at a branching node of a well. Such sub includes a branching chamber (32) and a plurality of branching outlet ...


2
Ohmer Herve, Brockman Mark W: Template and connector providing plural flow paths at a lateral junction. Schlumberger Holdings, May 14, 2003: GB2381809-A (49 worldwide citation)

A wellbore junction assembly comprises a template 18 having a lateral window positioned at the junction and a connector 28 that seals against the template and part of which extends through the lateral window to define a flow path in communication with the lateral bore 26. A second flow path continue ...


3
Patel Dinesh R, Hilsman Iii Y Gil, Ohmer Herve, Hiron Stephane, Gambier Philippe, Whitehead Jonathan, Sheffield Randolph J, Wetzel Rodney J, Whitsitt John R, Macdougall Thomas D, Vaida Nitin Y, Hendrickson James D, Edwards John E, Ross Donald W, Bhavsar Rashmi B: Sealing system. Schlumberger Holdings, September 14, 2005: GB2411918-A (40 worldwide citation)

A sealing system comprises an inflatable bladder 26 and a swellable material 24 in functional association with the bladder 26. The swellable material 24 swells when in contact with a triggering fluid and it may be located on the exterior of the bladder 26. Also disclosed is a sealing system having a ...


4
Ohmer Herve: Method and apparatus for establishing branch wells at a node of a parent well. Anadrill Int, Schlumberger Services Petrol, September 17, 1997: EP0795679-A2 (24 worldwide citation)

A method and apparatus for creating multiple branch wells from a parent well is disclosed. A multiple branching sub is provided for placement at a branching node of a well. Such sub includes a branching chamber and a plurality of branching outlet members. The outlet members during construction of th ...


5
Ohmer Herve: Method and apparatus for locating indexing systems in a cased well and conducting multilateral branch operations. Anadrill Int, Schlumberger Services Petrol, October 21, 1998: EP0872626-A2 (8 worldwide citation)

A method and apparatus for positioning and accurately orienting well service equipment within a well casing having an indexing coupling therein to permit the conduct of selected well service operations. A well logging sonde including an ultrasonic scanner system is run into the well casing and, in a ...


6
Ohmer Herve: Enhancing flow through a well pump. Schlumberger Holdings, May 10, 2006: GB2419905-A (7 worldwide citation)

A method for enhancing the flow of heavy oils though a pump involves injecting a chemical into the oil near the inlet of the pump. The chemical may reduce the viscosity of the oil or reduce the gas/liquid instability in the oil. The amount of chemical injected may be monitored at the surface or down ...


7
Patel Dinesh R, Hilsman Y Gil Iii, Ohmer Herve, Hiron Stephane, Gambier Philippe, Whitehead Jonathan, Sheffield Randolph J, Wetzel Rodney J, Whitsitt John R, Macdougall Thomas D, Vaida Nitin Y, Hendrickson James D, Edwards John E, Ross Donald W, Bhavsar Rashmi B: Wellbore sealing system. Schlumberger Holdings, January 24, 2007: GB2428263-A (7 worldwide citation)

The invention is a sealing system, such as a packer, that is used in a wellbore to seal against an exterior surface, such as a casing or open wellbore. The sealing system includes a swellable material 24 that swells from an unexpanded state to an expanded state thereby creating a seal when the swell ...


8
Patel Dinesh R, Hilsman Y Gil Iii, Ohmer Herve, Hiron Stephane, Gambier Philippe, Whitehead Jonathan, Sheffield Randolph J, Wetzel Rodney J, Whitsitt John R, Macdougall Thomas D, Vaida Nitin Y, Hendrickson James D, Edwards John E, Ross Donald W, Bhavsar Rashmi B: Sealing system with swellable material. Schlumberger Holdings, October 13, 2007: GB2428264-A (7 worldwide citation)

A sealing system for use in a well comprises a swellable material 56 disposed on a conveyance device 20, wherein the swellable material 56 swells when in contact with a triggering fluid, and is stretched longitudinally prior to deployment in the well. The stretching has the effect of reducing the ou ...


9
Patel Dinesh R, Ohmer Herve: System and method for making fiber optic measurements in a wellbore using a downhole opto-electronic uint. Sensor Highway, December 29, 2004: GB2403292-A (6 worldwide citation)

The invention is a system and method for making a fiber optic measurement in a wellbore, comprising a opto-electronic unit adapted to provide an optical signal into a fiber optic sensor and to receive a return signal from the fiber optic sensor; the fiber optic sensor adapted to measure a parameter ...


10
Nitis Spyros S, Ohmer Herve, Gotlib Mikhail V: Method and apparatus for drilling and re-entering multiple lateral branches in a well. Anadrill Int, Schlumberger Services Petrol, April 8, 1998: EP0834643-A2 (4 worldwide citation)

A method and apparatus for landing and orienting selected tools to selected depths within a well casing. The well casing is provided with a plurality of casing nipples located at selected depths with each of the landing and orienting joints defining a differing internal landing profile and having a ...