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Digital Rock Analysis

Overview

Pore is a digital rock software that extracts petrophysical information from CT-scan images of a rock sample. This technology aims to provide useful information for field development decisions fasters than traditional lab experiments. Pore can provide information like porosity, absolute and relative permeability, capillary pressure, and other topological information in weeks instead of months!

Network Generation

Pore is based on Pore Network Modeling (PNM) technology that creates a hydraulic representation of the rock pores and throats. This network is used to perform flow simulations and extract parameters like absolute permeability and capillary pressure.

Routine Petrophysics

With CT-Scans, Pore is able to pile the images and rebuild the rock structure in a 3D image. After creating the network, information such porosity and pore connectivity, size, and distribution are easily calculated, providing quick results for petrophysicists and preserving the original sample.

Special Core Analysis

The same Pore Network is used in fluid flow simulations to mimic core flooding experiments to extract information such as relative permeability and capillary pressure.

Multiscale Method

Carbonate rocks are known for their multiscale characteristics, where the rock matrix also has  microchannels where fluids can be stored and flow. Pore was developed  for such applications, and its multiscale approach allows the integration of a finer network extract from a higher resolution image into a coarse network from a lower resolution image, making it possible to simulate the multiscale behavior observed in such formations.

Reactive Transport

Pore simulator is also able to calculate mineral deposition and chemical reactions between fluids and rock surfaces due to its coupling with ReaktoroTM, an open-source geochemical simulator.

Reservoir Characterization

Understanding rock pore size and distribution, porosity, permeability, and other micro-scale level information is important for geologists and engineers to design reservoir exploitation strategies and better recover the hydrocarbons in place. Also, quicker turnaround times can shorten field development timeframes and can have significant impact on a project’s cash flow and economic assessment.

EOR Screening

EOR application can unlock billions of barrels worldwide without incurring the high costs and risks of new exploration and development projects. Many types of techniques are available, such low salinity water injection, polymer flooding, CO2 injection, and WAG, but most of these require a deep understanding of rock and fluids interaction, which can be altered in the presence of different agents. A Pore scale simulation can help in the design and screening of EOR methods, since it can include chemical reactions and wettability alterations.

Carbon Capture and Storage

CO2 injection can be used to recover more oil, as an EOR method, or to store tons of CO2 underground instead of releasing it into the atmosphere, reducing the impact on climate change. In any case, understanding the CO2 behavior in the reservoir is mandatory, since the precipitation of carbonates, for example, can be great for storage and bad for production. Pore scale simulation with geochemical reactions provided by Pore can help scientists to better design such systems.