Increasing Borehole Wall Permeability to Facilitate Fluid Sampling
AssigneeHalliburton Energy Services, Inc.
InventorsReena Agarwal Chanpura, Reginald Van Mayo, Curtis John Jacks
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Abstract
A drill string tool assembly, in some embodiments, comprises a punching tool that induces fissures to increase permeability in a localized region of a borehole wall. The assembly also comprises a sensor that detects spatial features of the fissures and processing logic, coupled to the sensor and punching tool, that adapts operation of the punching tool based on the spatial features. The assembly further comprises a fluid sampling probe, coupled to the processing logic, that samples fluid from the localized region.
Claims20
A drill string tool assembly, comprising:
- a punching tool that induces fissures to increase permeability in a localized region of a borehole wall;
- a sensor that detects spatial features of the fissures;
- processing logic, coupled to the sensor and punching tool, that adapts operation of the punching tool based on said spatial features;
- and
- a fluid sampling probe, coupled to the processing logic, that samples fluid from the localized region.
A method, comprising:
- punching a formation to create fissures in a localized portion of the formation until at least one of said fissures aligns with a fluid sampling probe;
- sampling formation fluid from the localized portion;
- and
- storing said formation fluid in a drill string tool assembly.
A method, comprising:
- punching a borehole wall to create fissures in a localized region of a formation;
- sensing spatial features of the localized region;
- and
- using the spatial features to adjust a position of a fluid sampling probe such that the probe is aligned with the localized region.
Dependencies are inferred from the claim text.