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Measurement of Matrix and Fracture Properties...

SKU: GRI-93/0103
Measurement of Matrix and Fracture Properties in Naturally Fractured Low Permeability Cores Using a Pressure Pulse Method

A new laboratory technique to determine the porosity and the permeability of the matrix, the effective width of the fractures, and the permeability of the fractures in a naturally fractured, low permeability core, is described. This technique uses a pressure pulse method.
Document Type
Report
Report Type
Topical Report
Report Period
07/91 - 12/92
Corporate Source
S.A. Holditch & Associates, Inc., College Station, TX; Texas A&M University, Department of Petroleum Engineering, College Station, TX
Sponsor
Gas Research Institute, Chicago, IL
Pagination
211p
Product Media
PDF Download
$295.00 / Each
 
Availability: In Stock
Summary:
Naturally fractured reservoirs are important sources of oil and gas. The properties of the matrix and the fractures are key parameters in predicting their performance. A new laboratory technique to determine the porosity and the permeability of the matrix, the effective width of the fractures, and the permeability of the fractures in a naturally fractured, low permeability core, is described. This technique uses a pressure pulse method. The matrix and fracture properties in twelve naturally fractured Devonian Shales cores were measured. The porosity values measured using the new technique compared favorably with measurements using crushed samples from the same cores. This technique, new to the petroleum industry, can measure matrix properties as low as 10-9 millidarcy, which constitutes a significant step forward in permeability measurements.
 
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