Methods and systems for sampling heavy oil reservoirs

Details Methods and systems for sampling heavy oil reservoirs Methods and systems for sampling heavy oil reservoirs

2006-12-12

2008-12-16

Neuder, William P (Department: 3672)

Wells

Processes

Sampling well fluid

C166S062000

Reexamination Certificate

active

07464755

ABSTRACT:
Methods and systems and are described for isolating or manipulating a sample of a heavy oil composition from a hydrocarbon reservoir. One method embodiment of the invention comprises circulating a heated fluid in a first region of a reservoir where a heavy oil composition is present or believed present using a surface pump and a well completion comprising a downhole pump for a time and flow rate sufficient to produce flowable heavy oil composition, the well completion comprising a sampling tool; and sampling the flowable heavy oil composition using the sampling tool. 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).

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Applicants' U.S. Appl. No. 11/426,359, filed Jun. 26, 2006 entitled “Compositions and Methods of Using Same in Producing Heavy Oil and Butimen”.

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