WORKFLOW FOR PORE PRESSURE AND PERMEABILITY ESTIMATION IN UNCONVENTIONAL FORMATIONS

    公开(公告)号:US20250084762A1

    公开(公告)日:2025-03-13

    申请号:US18466582

    申请日:2023-09-13

    Abstract: A method to perform a field operation of an unconventional reservoir is disclosed. The method includes performing a diagnostic fracture injection test (DFIT) of a formation zone in the unconventional reservoir to generate a DFIT dataset, where each log entry include a decline pressure and a time interval that are measured prior to any radial flow regime occurs in the formation zone during the DFIT, analyzing the DFIT dataset at selected time intervals to generate tabulated entries of estimated permeability versus estimated pressure in the tabulated entries, and determining, prior to said any radial flow regime occurs in the formation zone during the DFIT, a true reservoir permeability in the formation zone by extrapolating the tabulated entries of estimated permeability versus estimated pressure.

    Efficient stimulation of formation using micro-proppants

    公开(公告)号:US11629284B1

    公开(公告)日:2023-04-18

    申请号:US17553889

    申请日:2021-12-17

    Abstract: A method of stimulating petroleum production includes introducing a fracturing fluid into a petroleum formation, thereby creating at least one fracture to stimulate the petroleum production. The fracturing fluid is introduced into the petroleum formation at a pressure above the breakdown pressure of the formation. The fracturing fluid includes a plurality of proppants where from 1 to 50 wt. % of the plurality of proppants includes micro proppants having a particle size ranging from 0.5 to 150 μm, and from 50 to 99 wt. % of the plurality of proppants includes macro proppants having a particle size greater than 100 mesh.

    Production logging tool
    7.
    发明授权

    公开(公告)号:US11448059B2

    公开(公告)日:2022-09-20

    申请号:US16986678

    申请日:2020-08-06

    Abstract: In an example implementation, a production logging tool includes a housing that includes a first testing section defining a first central opening having a first diameter and a second testing section defining a second central opening having a second diameter different from the first diameter, a first flow sensor positioned within the first central opening, a second flow sensor positioned within the second central opening, and a sealing device configured to seal an annulus of a wellbore. The second central opening is fluidly coupled to the first central opening.

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