Petrophysical and Fluid Flow Properties of a Tight Carbonate Source Rock Using Digital Rock Physics

2015 ◽  
Author(s):  
Moustafa Dernaika ◽  
Osama Al Jallad ◽  
Safouh Koronfol ◽  
Michael Suhrer ◽  
Woan Jing Teh ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Source Rock ◽  
Rock Physics ◽  
Flow Properties ◽  
Digital Rock Physics ◽  
Digital Rock ◽  
Tight Carbonate ◽  
Carbonate Source Rock ◽  
Carbonate Source

Petrophysical and Fluid Flow Properties of a Tight Carbonate Source Rock Using Digital Rock Physics

2015 ◽  
Author(s):  
Moustafa Dernaika ◽  
Osama Ali Aljallad ◽  
Safouh Koronfol ◽  
Michael Suhrer ◽  
Woan Jing Teh ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Source Rock ◽  
Rock Physics ◽  
Flow Properties ◽  
Digital Rock Physics ◽  
Digital Rock ◽  
Tight Carbonate ◽  
Carbonate Source Rock ◽  
Carbonate Source

Petrophysical and Fluid Flow Properties of a Tight Carbonate Source Rock Using Digital Rock Physics

2015 ◽  
Author(s):  
Moustafa Dernaika ◽  
Osama Al Jallad ◽  
Safouh Koronfol ◽  
Michael Suhrer ◽  
Woan Jing Teh ◽  
...  
Keyword(s):  
Organic Matter ◽  
Fluid Flow ◽  
Source Rock ◽  
Rock Physics ◽  
Flow Properties ◽  
Digital Rock Physics ◽  
The Core ◽  
Tight Carbonate ◽  
Carbonate Source Rock ◽  
Carbonate Source

Abstract The evaluation of shale is complicated by the structurally heterogeneous nature of fine-grained strata and their intricate pore networks, which are interdependent on many geologic factors including total organic carbon (TOC) content, mineralogy, maturity and grain-size. The ultra-low permeability of the shale rock requires massive hydraulic fracturing to enhance connectivity and increase permeability for the flow. To design an effective fracturing technique, it is necessary to have a good understanding of the reservoir characteristics and fluid flow properties at multiple scales. In this work, representative core plug samples from a tight carbonate source rock in the Middle East were characterized at the core- and pore-scale levels using a Digital Rock Physics (DRP) workflow. The tight nature of the carbonate rocks prevented the use of conventional methods in measuring special core analysis (SCAL) data. Two-dimensional Scanning Electron Microscopy (SEM) and three-dimensional Focused Ion Beam (FIB)-SEM analysis were studied to characterize the organic matter content in the samples together with (organic and inorganic) porosity and matrix permeability. The FIB-SEM images in 3D were also used to determine petrophysical and fluid flow (SCAL) properties in primary drainage and imbibition modes. A clear trend was observed between porosity and permeability related to identified rock fabrics and organic matter in the core. The organic matter was found to have an effect on the imbibition two-phase flow relative permeability and capillary pressure behavior and hysteresis trends among the analyzed samples. The data obtained from DRP provided information that can enhance the understanding of the pore systems and fluid flow properties in tight formations, which cannot be derived accurately using conventional methods.

Digital rock physics: 3D imaging of core material and correlations to acoustic and flow properties

2009 ◽  
Vol 28 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Mark A. Knackstedt ◽  
Shane Latham ◽  
Mahyar Madadi ◽  
Adrian Sheppard ◽  
Trond Varslot ◽  
...  
Keyword(s):  
3D Imaging ◽  
Rock Physics ◽  
Core Material ◽  
Flow Properties ◽  
Digital Rock Physics ◽  
Digital Rock

scholarly journals Construction of pore structure and lithology of digital rock physics based on laboratory experiments

2021 ◽  
Vol 11 (5) ◽  
pp. 2113-2125
Author(s):  
Chenzhi Huang ◽  
Xingde Zhang ◽  
Shuang Liu ◽  
Nianyin Li ◽  
Jia Kang ◽  
...  
Keyword(s):  
Pore Structure ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Laboratory Experiments ◽  
Rock Physics ◽  
Reconstruction Method ◽  
Digital Rock Physics ◽  
Digital Rock ◽  
The Core

AbstractThe development and stimulation of oil and gas fields are inseparable from the experimental analysis of reservoir rocks. Large number of experiments, poor reservoir properties and thin reservoir thickness will lead to insufficient number of cores, which restricts the experimental evaluation effect of cores. Digital rock physics (DRP) can solve these problems well. This paper presents a rapid, simple, and practical method to establish the pore structure and lithology of DRP based on laboratory experiments. First, a core is scanned by computed tomography (CT) scanning technology, and filtering back-projection reconstruction method is used to test the core visualization. Subsequently, three-dimensional median filtering technology is used to eliminate noise signals after scanning, and the maximum interclass variance method is used to segment the rock skeleton and pore. Based on X-ray diffraction technology, the distribution of minerals in the rock core is studied by combining the processed CT scan data. The core pore size distribution is analyzed by the mercury intrusion method, and the core pore size distribution with spatial correlation is constructed by the kriging interpolation method. Based on the analysis of the core particle-size distribution by the screening method, the shape of the rock particle is assumed to be a more practical irregular polyhedron; considering this shape and the mineral distribution, the DRP pore structure and lithology are finally established. The DRP porosity calculated by MATLAB software is 32.4%, and the core porosity measured in a nuclear magnetic resonance experiment is 29.9%; thus, the accuracy of the model is validated. Further, the method of simulating the process of physical and chemical changes by using the digital core is proposed for further study.

Strengthening the Digital Rock Physics, Using Downsampling for Sub-Resolved Pores in Tight Sandstones

2021 ◽  
pp. 103869
Author(s):  
Mohammad Ebadi ◽  
Denis Orlov ◽  
Ivan Makhotin ◽  
Vladislav Krutko ◽  
Boris Belozerov ◽  
...  
Keyword(s):  
Rock Physics ◽  
Digital Rock Physics ◽  
Digital Rock
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