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Verifying single phase Samples

IP.com Disclosure Number: IPCOM000193111D
Publication Date: 2010-Feb-10
Document File: 1 page(s) / 8K

Publishing Venue

The IP.com Prior Art Database

Abstract

The installation of a small memory recorder that would be in the single phase sampler chamber would be activated at a pre-programmed pressure and would record the pressure of the sample being taken, the over pressure cycle, the trip out of the hole and include the transfer process into the DOT sample transfer bottle.

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Verifying single phase Samples from time sample was taken until in sample transfer bottle.

Typical downhole single phase sampling consists of capturing the single phase samples in a well, retrieving the samples to surface followed by transferring them into a DOT sample transfer bottle for transportation to a fluids lab for analysis. During any of these processes pressure can be released and the sample may drop below the bubble point and become a two phase sample. The pressure can be brought back up to above bubble point and in reality becomes a single phase sample again, but the representative fluid sample may be lost or altered. For some hydrocarbon samples, there are minor components that once they drop out of solution due to being below the bubble point they will never go back into solution. This means that a portion of the sample will be left behind in the single phase sampler or connecting lines between the sampler and the DOT transfer bottle and thus will never be analyzed as part of the sample. This valuable information could be critical for an Operator's downstream production processes.

The installation of a small memory recorder that would be in the single phase sampler chamber would be activated at a pre-programmed pressure and would record the pressure of the sample being taken, the over pressure cycle, the trip out of the hole and include the transfer process into the DOT sample transfer bottle. At this time th...