Mobil Oil Corporation

M Scott Quigley

Eve S Sprunt

R Michael Davis

Henry A Seal

Maurice J Prior

Gordon A Russell

A material sample representative of a subsurface formation is tested for its dynamic interaction with a coring fluid. The material sample is subjected to a pressurized and agitating coring fluid to simulate a coring operation. Thereafter the material sample is x-ray scanned to identify the extent of coring fluid invasion during the dynamic interaction of the material sample and the coring fluid.

Method and system for testing the dynamic interaction of coring fluid

A dynamic filtration unit for drilling and completion fluids employs an adjustable size annulus, high filtration pressures and temperatures, automatic filtration collection and measurement, and natural or artificial filters.

Dynamic filtration unit and process of use

Temperature control apparatus for a system for testing drilling mud includes instrumentation for measuring the parameters of the drilling mud, and a pump for pumping the drilling mud in a recirculating path through the instrumentation. A mud heater in the recirculating path heats the mud and a heat exchanger connected in the front of the heater in the recirculating path cools the mud before it is heated. The heater and the heat exchanger are controlled to maintain a constant differential across the heater. The heater is constructed in a manner which provides low thermal mass, thereby providing a fast response time for changes in temperature.

Controlled heater for drilling mud testing system

In a system for testing drilling mud, a mixing tank and an aging vessel are hydraulically connected to supply drilling mud to a closed recirculating path through which mud is pumped to measuring instrumentation. The accumulator has a head which is removable for inspection and maintenance of the gas pressurized piston which pressurizes the drilling mud. The seals on the head are positioned to minimize wear.

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Plano, TX, United States of America

M Scott Quigley