20240018867. METHOD AND SYSTEM FOR ESTIMATING A DEPTH PRESSURE AND/OR PERMEABILITY PROFILE OF A GEOLOGICAL FORMATION HAVING A WELL simplified abstract (TOTAL SE)

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METHOD AND SYSTEM FOR ESTIMATING A DEPTH PRESSURE AND/OR PERMEABILITY PROFILE OF A GEOLOGICAL FORMATION HAVING A WELL

Organization Name

TOTAL SE

Inventor(s)

Antoine Jacques of Pau (FR)

Benoit Brouard of Pau (FR)

Vincent Jaffrezic of Pau (FR)

METHOD AND SYSTEM FOR ESTIMATING A DEPTH PRESSURE AND/OR PERMEABILITY PROFILE OF A GEOLOGICAL FORMATION HAVING A WELL - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240018867 titled 'METHOD AND SYSTEM FOR ESTIMATING A DEPTH PRESSURE AND/OR PERMEABILITY PROFILE OF A GEOLOGICAL FORMATION HAVING A WELL

Simplified Explanation

The patent application describes a method for estimating the depth pressure and/or permeability profile of a geological formation using a well equipped with an inner tube and an annular space. The method involves performing two well closing phases by injecting a second fluid with higher viscosity while extracting the first fluid under different constant pressure values. The depth pressure and/or permeability profile of the formation are estimated based on measurements taken during these phases.

  • The method involves equipping a well with an inner tube and an annular space.
  • A first well closing phase is performed by injecting a second fluid with higher viscosity while extracting the first fluid under a constant pressure value.
  • A second well closing phase is performed by injecting the second fluid while extracting the first fluid under a different constant pressure value.
  • The depth pressure and/or permeability profile of the geological formation are estimated based on measurements taken during the first and second well closing phases.

Potential applications of this technology:

  • Oil and gas exploration: The method can be used to estimate the depth pressure and permeability profile of geological formations to identify potential oil and gas reservoirs.
  • Geothermal energy: The method can help in assessing the permeability and pressure of geothermal reservoirs for efficient extraction of heat energy.
  • Groundwater management: The technology can be applied to estimate the permeability and pressure of underground aquifers, aiding in sustainable groundwater management.

Problems solved by this technology:

  • Accurate estimation: The method provides a way to estimate the depth pressure and permeability profile of geological formations, which is crucial for various applications in the energy and environmental sectors.
  • Cost-effective: The method utilizes existing well infrastructure and does not require additional drilling or invasive techniques, making it a cost-effective solution for estimating formation properties.

Benefits of this technology:

  • Improved resource exploration: By accurately estimating the depth pressure and permeability profile, this method can enhance the success rate of resource exploration projects.
  • Efficient energy extraction: The technology enables better assessment of geothermal reservoirs, leading to more efficient extraction of heat energy.
  • Sustainable groundwater management: The method helps in understanding the permeability and pressure of underground aquifers, supporting sustainable management of groundwater resources.


Original Abstract Submitted

a method for estimating a depth pressure and/or permeability profile of a geological formation having a well extending between a first end and a second end includes equipping the well with an inner tube defining an inner space and an annular space; performing a first well closing phase by injecting a second fluid having a higher viscosity than a first fluid in the well while extracting under a first constant pressure value; performing a second well closing phase by injecting the second fluid while extracting the first fluid under a second constant pressure value, different from the first constant pressure value; and estimating the depth pressure and/or permeability profile of the geological formation based on measurements performed during the first well closing phase and the second well closing phase.

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