A Pore-Pressure Equation for Carbonates
- Juan P. Morales-Salazar (National University of Mexico) | Fernando Samaniego-Verduzco (National University of Mexico and Pemex) | Mario G. García-Herrera (Mexican Petroleum Institute)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- June 2020
- Document Type
- Journal Paper
- 191 - 200
- 2020.Society of Petroleum Engineers
- porosity, mixed model, carbonates, pore pressure
- 40 in the last 30 days
- 111 since 2007
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A new pore-pressure prediction equation for carbonate formations was developed following the compressibility method previously known. The main goal of this research was motivated by the lack of specialized information needed to apply such a method. The resulting equation is a function of the differential stress and a porosity-relative constant that depends implicitly on carbonate-rock compressibilities. Two examples in carbonates from Mexico are presented to demonstrate the viability of the method in this paper. A “mixed model” was obtained to compute the total pore-pressure gradient, accounting for shale and carbonate rocks.
|File Size||9 MB||Number of Pages||10|
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