Robert D Saunders

US Patent:

20130025854, Jan 31, 2013

Filed:

Jul 30, 2011

Appl. No.:

13/194932

Inventors:

Bernard Theron - Aberdeen, GB
John Nighswander - Katy TX, US
Robert Saunders - Pasadena TX, US
Andrea Sbordone - Rio De Janeiro Rj, BR
Paul Guieze - Fontenailles, FR
Gerald Smith - Thiverval, FR

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX

International Classification:

E21B 49/08
E21B 27/00

US Classification:

166264, 166162

Abstract:

A system and method for sampling fluid from a production wellsite are provided. The system includes an interface operatively connectable to the port and a separation circuit operatively connectable to the interface for establishing fluid communication therebetween. The separation circuit includes a pumping unit and at least one sample chamber. The pumping unit includes pumping chambers having a cylinder with a piston therein defining a fluid cavity and a buffer cavity. The fluid cavities define a separation chamber for receiving the fluid and allowing separation of the fluid therein into phases. The buffer cavities have a buffer fluid selectively movable therebetween whereby the fluid flows through the separation circuit at a controlled rate. The sample chamber is for collecting at least one sample of the phases of the fluid.

US Patent:

20130025874, Jan 31, 2013

Filed:

Jul 30, 2011

Appl. No.:

13/194931

Inventors:

Robert Saunders - Pasadena TX, US
John Nighswander - Katy TX, US
Bernard THERON - Aberdeenshire, GB
Andrew Gilbert - Aberdeen, GB

International Classification:

E21B 43/36
B01D 17/038
B04C 7/00

US Classification:

166357, 2105121, 210196

Abstract:

Techniques for separating downhole fluid from a wellbore penetrating a subterranean formation are provided. These techniques may involve a cyclone separator having a housing with an intake for receiving the downhole fluid and at least one outlet, a cyclone section for rotating the downhole fluid, and an isolation plate positioned below the cyclone section. The isolation plate has a plurality of slots along a perimeter thereof positionable adjacent an inner surface of the housing for selectively passing portions of the downhole fluid out of the cyclone section. The cyclone separator further having a catching section for receiving the portions of the downhole fluid passing through the isolation plate for gravitational separation into a plurality of phases therein. The catching section has a plurality of baffles for stopping rotation of the portions of the downhole fluid.