Use of capillary-membrane sampling device to monitor oil-drillin

Details Use of capillary-membrane sampling device to monitor oil-drillin Use of capillary-membrane sampling device to monitor oil-drillin

1994-12-14

1995-11-28

Schoeppel, Roger J.

Wells

Processes

With indicating, testing, measuring or locating

166264, 175 60, 73 2336, 73 2341, 73 2342, E21B 4700

Patent

active

054699177

ABSTRACT:
A method for monitoring oil-drilling mud. A supported capillary membrane (SCMS) device having a support member, a capillary membrane permeable to hydrocarbons, and flights on the surface of the support member within which the capillary member is supported is disposed in a stream returning mud from a drill hole to the surface of an oil well. A stream of inert gas is passed through the SCMS device, thereby entraining hydrocarbon vapors in the gas stream and providing a sample of the hydrocarbons associated with the oil-drilling mud. The hydrocarbon-laden gas stream is input to an analytical instrument such as a gas chromatograph capable of identifying and quantitatively determining the concentrations of the hydrocarbons.

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PCT International Application WO93/16790 published 2 Sep. 1993.

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