Wells – Processes – With indicating – testing – measuring or locating
Patent
1982-08-06
1984-10-09
Novosad, Stephen J.
Wells
Processes
With indicating, testing, measuring or locating
73155, 166 66, E21B 4706
Patent
active
044755910
ABSTRACT:
A method is detailed for obtaining data useful in the analysis of fluid communication and migration between first and second horizons intersected by a wellbore. In the practice of this method, a pressure transducer is fixedly attached to a length of casing. The casing is inserted into the well such that the transducer is positioned proximate the first horizon. The annulus between the face of the wellbore and the casing is then filled with cement and the cement is permitted to cure. The output of the transducer is monitored and recorded. A change in the pressure observed at the first horizon corresponding to a known change in the pressure at the second horizon is indicative of fluid communication between the two horizons. The change in the pressure condition of the second interval can be induced artificially by the injection of fluids into the second interval or by the production of pore fluids from the second interval.
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Exxon Production Research Co.
Neuder William P.
Novosad Stephen J.
Phillips Richard F.
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