Schlumberger Technology Corporation

Terry Sopkow

Ahmed Hammami

Scott Jacobs

Tsutomu Yamate

Robert J Schroeder

Francois M Auzerais

Stephane Vannuffelen

Andrew L Kurkjian

Toru Terabayashi

John A Kerr

Jeffrey A Tarvin

John Ratulowski

Shawn David Taylor

Todd Yakimoski

Laurent P Prouvost

Hussein Alboudwarej

Craig Borman

Ken Sitko

The present invention contemplates implementation of transitory downhole video imaging and/or spectral imaging for the characterization of formation fluid samples in situ, as well as during flow through production tubing, including subsea flow lines, for permanent and/or long term installations. The present invention contemplates various methods and apparatus that facilitate one-time or ongoing downhole fluid characterization by video analysis in real time. The methods and systems may be particularly well suited to permanent and periodic intervention-based operations.

Spectral imaging for downhole fluid characterization

Apparatus and methods are described for observing samples at non-ambient temperatures and pressures. One apparatus comprises a cell body having a fluid flow-through passage and a light passage intersecting the fluid flow-through passage at an adjustable light pathlength fluid analysis region; first and second light-transmissive windows in the light passage, each window having at least one crystal axis aligned longitudinally with a longitudinal axis of the window, the windows having opposed, spaced apart, substantially flat surfaces defining the adjustable light pathlength fluid analysis region, the first window having a first window holder and the second window having a second window holder, the first window rotationally isolated from the first window holder, the second window rotationally coupled to the second window holder, the first window holder able to gradually move the first window and thus adjust the light pathlength; and first and second light polarization filters.

High-pressure cross-polar microscopy cells having adjustable fluid passage and methods of use

Apparatus and methods are described for isolating or manipulating a portion of a sample at non-ambient temperatures and pressures. One apparatus embodiment of the invention comprises a primary sample containment vessel defining a primary chamber, the vessel having a primary sample inlet and outlet; a secondary sample collection container defining a collection chamber fluidly connected to the primary containment vessel; and a sample probe comprising a distal end able to isolate a secondary sample in the primary chamber and transfer it to the collection chamber, the probe fluidly connected to the primary chamber via a seal allowing at least the distal end to be moved in 3-dimensions within the primary chamber. This abstract complies with rules requiring an abstract. It should not be used to limit the scope or meaning of the claims. 37 CFR 1.72(b).

Apparatus and methods for sample handling and rheology analysis

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Edmonton, Canada

Terry Sopkow