Apparatus and method for simulating well bore conditions

Measuring and testing – Simulated environment

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G01N 100

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active

060558741

ABSTRACT:
The present invention provides methods and apparatus for simulating well bore conditions before and after cementing therein. The methods of the invention are basically comprised of the steps of circulating a drilling fluid through a closed test cell containing a permeable rock core while maintaining a selected pressure differential across the rock core to form a layer of filter cake thereon, circulating a filter cake removal fluid through the test cell to simulate the clean-up of the well bore and then determining the condition of the rock core with respect to the effectiveness of the filter cake removal fluid thereon.

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Application Serial No. 09/166,456, filing date Oct. 6, 1998 entitled "Dynamic Fluid Loss Cell Apparatus and Method Thereof".
J. V. Fisk et al.: "The Use of Filtration Theory In Developing A Mechanism For Filter-Cake Deposition By Drilling Fluids In Laminar Flow," SPE Drilling Engineering, Sep. 1991, pp. 196-202.
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B. G. Chesser et al.: "Dynamic And Static Filtrate-Loss Techniques For Monitoring Filter-Cake Quality Improved Drilling-Fluid Performance," SPE Drilling & Conference, Mar. 18, 1994.

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