--> Estimation of Permeability, Porosity and Rock Compressibility Properties Using Digital Rock Analysis Technique for Heavy Oil Unconsolidated Sandstone Offshore Brazil Post-Salt
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AAPG ACE 2018

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Estimation of Permeability, Porosity and Previous HitRockNext Hit Compressibility Properties Using Digital Previous HitRockNext Hit Analysis Technique for Heavy Oil Unconsolidated Sandstone Offshore Brazil Post-Salt

Marcelo Marsili3, Paulo Rocha3, Milena F. de Siqueira1, Felipe Silva1, Carl Sisk2, Avrami Grader2, Jonas Toelke2, Austin Jordan2


1Ingrain Brasil, Rio de Janeiro, Rio de janeiro, Brazil.
2Ingrain Inc, Houston, TX, United States.
3Queiroz Galvão, Rio de Janeiro, Rio de Janeiro, Brazil.


July 23 - 25, 2018 – AAPG ACE 2018,

Posted: July 23-25, 2018

Abstract

Mechanical and transport Previous HitrockNext Hit properties have fundamental importance to characterize oil and gas reservoirs. Traditionally, these properties are obtained by conventional well logging techniques, seismic inversion and laboratory tests from cores, sidewall cores, plugs and Previous HitrockNext Hit cuttings. However, for unconsolidated rocks, conventional recovery techniques of Previous HitrockNext Hit samples and performing laboratory tests are subject to failure at all stages of the process. Due to the unconsolidated nature of the Previous HitrockNext Hit, the recovery material, are usually changed by fractures created by gas expansion in the oil inside the Previous HitrockNext Hit. In addition there are challenges with plugging these rocks, cleaning and conditioning for traditional physical laboratory testing.

In scenario like this, Digital Previous HitRockNext Hit Analysis (DRA) is one of the techniques that have been used to overcome these difficulties. From imaging the Previous HitrockNext Hit samples using CT (Computed Tomography - CT), a three-dimensional image of the grain and pore system is created and with new equipment and workflows the Previous HitrockNext Hit compressibility properties can be measured.

The aim of this study was develop a Previous HitrockNext Hit compressibility methodology using digital image in order to quantify the important reservoir property for improved field development and forecasting reserves.

This paper outlines the equipment designed to allow for scanning the Previous HitrockNext Hit samples under hydrostatic pressure using the latest Micro-CT equipment and then taking the different scans and calculating the change in porosity, permeability and other properties. The results of this new work are compared to other available sources including openhole logs with in situ porosity as wells Newman work for Previous HitrockTop compressibility assuming uncemented sandstone.

AAPG Datapages/Search and Discovery Article #90323 ©2018 AAPG Annual Convention and Exhibition, Salt Lake City, Utah, May 20-23, 2018