Devices, systems and methods for assessing porous media properties

A technology of porous media and pore fluid, applied in seismology for well logging, electric/magnetic detection for well logging, and measuring devices, etc. It can solve the problem of difficult oil and gas-bearing rock formation measurement, inaccurate results, etc. question

Inactive Publication Date: 2008-12-10
PRAD RES & DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Leaks around the detector or unknown effects of empirically based correlations (eg, NMR decay rate measurements, mineralogy based estimates) can provide inaccurate re

Method used

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  • Devices, systems and methods for assessing porous media properties
  • Devices, systems and methods for assessing porous media properties
  • Devices, systems and methods for assessing porous media properties

Examples

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Embodiment Construction

[0023] Certain embodiments of the devices, systems and methods disclosed herein provide for measurements in porous media not previously achieved using existing methods. Embodiments of the devices, systems, and methods disclosed herein can be used to identify porous formations with high mobility in order to identify productive well sites that can be used to extract resources such as natural gas and petroleum products Hydrocarbon fuel source. In some examples, the methods, systems, and devices disclosed herein may be used to determine the penetration depth of oscillations in hydrocarbon-bearing rock formations.

[0024] Potential hydrocarbon-bearing rock formations are composed of two solid components. The first component is the rock matrix, while the second component is dry clay. Total porosity is measurable by density logging tools and is defined as the difference between the total volume and the solid fraction. Total porosity includes clay-bound water, movable water, bound...

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Abstract

Certain embodiments are directed to devices, systems and methods for determining a penetration depth of an induced oscillation in a porous medium. In certain examples, the devices, systems and methods are designed to detect a magnetic resonance signal in the presence of an induced oscillatory fluid flow in a porous medium to determine penetration depth of the induced oscillation in the porous medium. In some examples, the mobility of a fluid in the porous medium may be determined from the determined penetration depth.

Description

technical field [0001] Embodiments of the technology disclosed herein generally relate to devices, systems, and methods configured to determine the penetration depth of induced oscillations in porous media. More particularly, certain technical embodiments disclosed herein relate to devices, systems, and methods that can utilize magnetic resonance techniques to determine the penetration depth of induced oscillations. Background technique [0002] Measuring the physical properties of fluids in potentially petroleum bearing rock formations is difficult. Measuring mobility (permeability divided by viscosity) using logging methods typically requires measuring fluid flow while simultaneously measuring pressure gradients. These measurements are difficult to accomplish especially in downhole applications. [0003] Typical penetration depths for hydrocarbon-bearing rock formations may vary from about 0.1 mm to about 20 cm, more particularly, for example, from about 1 mm to about 10...

Claims

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Application Information

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IPC IPC(8): E21B49/00G01V3/32
CPCG01N24/081G01R33/3808G01R33/383G01V3/32G01V1/40G01V11/00
Inventor D·P·马迪奥D·L·约翰逊
Owner PRAD RES & DEV LTD
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