Apparatus and method for estimating liquid yield of a gas/conden

Details Apparatus and method for estimating liquid yield of a gas/conden Apparatus and method for estimating liquid yield of a gas/conden

1997-04-04

1999-06-08

Schoeppel, Roger

Wells

Processes

With indicating, testing, measuring or locating

250256, 250266, 7315206, 7315208, 7315214, E21B 4700

Patent

active

059097728

ABSTRACT:
Apparatus and method for determining a liquid yield from a gas/condensate reservoir. The apparatus and method first determines the porosity at each depth of a reservoir, using open hole logging techniques, before the well within the reservoir is used for production. Once the well is being used for production, a pulse neutron capture logging device is used to provide RICS and RATO data at each depth within the reservoir. The apparatus and method combines the RICS and RATO data, along with the porosity data, to provide a yield plot of an estimate of the liquid yield of the condensate in the reservoir at each depth within the reservoir. The apparatus and method further compares estimates made to any actual production data from the particular well being estimated and corrects constants within the estimating method to cause the estimates to match the production data. This feedback mechanism provides a more accurate estimate of the yield.

REFERENCES:
patent: 3852593 (1974-12-01), Robinson
patent: 4095102 (1978-06-01), Tixier

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