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公开(公告)号：US12228031B2
公开(公告)日：2025-02-18
申请号：US17412078
申请日：2021-08-25
Applicant: Halliburton Energy Services, Inc.
Inventor： Mayir Mamtimin , Jeffrey James Crawford
Abstract: Systems and methods of the present disclosure relate to determining a borehole holdup. A method comprises logging a well with a pulsed-neutron logging (PNL) tool; receiving, via the PNL tool, transient decay measurements, capture spectrum measurements, and inelastic spectrum measurements; extracting information from each of the capture spectrum measurements, the inelastic spectrum measurements, and the transient decay measurements; inputting all of the extracted information as a single input into artificial neural networks; and determining the borehole holdup with the artificial neural networks.
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公开(公告)号：US12210133B2
公开(公告)日：2025-01-28
申请号：US17903649
申请日：2022-09-06
Applicant: Saudi Arabian Oil Company
Inventor： Yahia Ahmed Eltaher , Shouxiang Mark Ma
Abstract: A determination of a continuous oil density log for a hydrocarbon reservoir accessible via a well drilling into the formation having the reservoir. The logging operations may be conducted in the well to generate a carbon-oxygen ratio (C/O) log, a water saturation log, and a porosity log. A continuous oil density log may be determined using the C/O log, the water saturation log, the porosity log, and carbon and oxygen density values. The continuous oil density log may be used in further characterization and development of the hydrocarbon reservoir.
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公开(公告)号：US20240352855A1
公开(公告)日：2024-10-24
申请号：US18302502
申请日：2023-04-18
Applicant: Weatherford Technology Holdings, LLC
Inventor： Natasa Mekic , Richard Pemper , Gregory Schmid
CPC classification number: E21B49/087 , E21B49/00 , G01V5/102 , E21B2200/20 , E21B2200/22
Abstract: Methods, tools, and systems for determining two-phase borehole fluid holdup using pulsed neutron (PN) measurements are described. Embodiments of the techniques involve using formation models that are extended/extrapolated (or remodeled) to a value of 100 p.u., which correlates to the borehole environment where there is no formation matrix present. Those models can be used to determine the fractional relationship of oil and water in the borehole based on carbon and oxygen ratios provided by the PN measurement.
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公开(公告)号：US12037895B2
公开(公告)日：2024-07-16
申请号：US18197570
申请日：2023-05-15
Applicant: CARBO CERAMICS INC.
Inventor： Jeremy Zhang , Harry D. Smith, Jr.
Abstract: The present disclosure is directed to methods for evaluating a gravel pack, a frac-pack, or cement in a wellbore. In at least one embodiment, a method for evaluating a gravel pack, frac-pack or cement in a wellbore, includes pumping a first material into the wellbore, wherein the first material comprises a first tracer that is not radioactive. The method includes pumping a second material into the wellbore, wherein the second material comprises a second tracer that is not radioactive. The method includes obtaining a set of data using the downhole tool in the wellbore after the first and second materials are pumped into the wellbore. The method includes obtaining a baseline using the downhole tool in the wellbore in a depth interval without the first or second material. The method includes comparing the set of data with the baseline.
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公开(公告)号：US11994647B2
公开(公告)日：2024-05-28
申请号：US17550588
申请日：2021-12-14
Applicant: HALLIBURTON ENERGY SERVICES, INC.
Inventor： Mayir Mamtimin , Jeffrey James Crawford , Weijun Guo
IPC: G01V5/10
CPC classification number: G01V5/101
Abstract: Aspects of the subject technology relate to determining holdup compensated formation saturation while refraining from calculating holdup. Inelastic gamma spectrum data for an inelastic gamma spectrum generated downhole in a wellbore can be accessed. Further, capture gamma spectrum data for one or more capture gamma spectrums generated downhole in the wellbore can be accessed. A model that accounts for holdup measurement can be applied to both the inelastic gamma spectrum data and the capture gamma spectrum data to identify a compensated oil saturation for a formation surrounding at least a portion of the wellbore based on both the inelastic gamma spectrum and the one or more capture gamma spectrums.
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Patent Agency Ranking
公开(公告)号：US20240114612A1
公开(公告)日：2024-04-04
申请号：US17957026
申请日：2022-09-30
Applicant: Halliburton Energy Services, Inc.
Inventor： Zilu ZHOU , Weijun GUO
Abstract: A method includes operating a neutron generator in a loading mode by ionizing ionizable gas within an ion source of the neutron generator to create a plurality of ions, and accelerating the plurality of ions by providing a first voltage to a target rod that supports the target to create a first ion beam that bombards a target of the neutron generator. The method also includes operating the neutron generator in a generating mode to generate a plurality of neutrons by accelerating the plurality of ions by providing a second voltage to the target rod to create a second ion beam that bombards the target. The second voltage is greater than the first voltage.
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公开(公告)号：US20240077636A1
公开(公告)日：2024-03-07
申请号：US17903649
申请日：2022-09-06
Applicant: Saudi Arabian Oil Company
Inventor： Yahia Ahmed Eltaher , Shouxiang Mark Ma
CPC classification number: G01V5/102 , G01V3/20 , G01V11/002
Abstract: A determination of a continuous oil density log for a hydrocarbon reservoir accessible via a well drilling into the formation having the reservoir. The logging operations may be conducted in the well to generate a carbon-oxygen ratio (C/O) log, a water saturation log, and a porosity log. A continuous oil density log may be determined using the C/O log, the water saturation log, the porosity log, and carbon and oxygen density values. The continuous oil density log may be used in further characterization and development of the hydrocarbon reservoir.
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公开(公告)号：US11887746B2
公开(公告)日：2024-01-30
申请号：US17532507
申请日：2021-11-22
Applicant: Schlumberger Technology Corporation
Inventor： Luke T. Perkins , Christian Stoller , Peter Wraight
IPC: G21G4/02 , H05H3/06 , G01V5/10 , H01J35/04 , H01J35/14 , H01J35/00 , H05G1/10 , H05G1/02 , H05G1/00
CPC classification number: G21G4/02 , H05H3/06 , G01V5/10 , H01J35/00 , H01J35/04 , H01J35/14 , H01J2235/023 , H05G1/00 , H05G1/02 , H05G1/10
Abstract: Disclosed is a radiation logging tool, comprising a tool housing; a compact generator that produces radiation; a power supply coupled to the compact generator; and control circuitry. Embodiments of the compact generator comprise a generator vacuum tube comprising a source generating charged particles, and a target onto which the charged particles are directed; and a high voltage supply comprising a high voltage multiplier ladder located laterally adjacent to the generator vacuum tube. The high voltage supply applies a high voltage between the source and the target to accelerate the charged particles to a predetermined energy level. The compact generator also includes an electrical coupling between an output of the high voltage supply and the target of the generator vacuum tube to accommodate the collocated positions of the generator vacuum tube and the high voltage power supply.
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公开(公告)号：US20230350094A1
公开(公告)日：2023-11-02
申请号：US17731559
申请日：2022-04-28
Applicant: Halliburton Energy Services, Inc.
Inventor： Zilu Zhou , Weijun Guo
IPC: G01V5/10
CPC classification number: G01V5/10
Abstract: A downhole neutron generator includes a housing, a gas reservoir positionable within the housing, a target rod positionable within the housing and having a longitudinal axis aligned with a central axis of the housing, an ion source positionable adjacent to the gas reservoir and between the target rod and the gas reservoir, and a target positionable on a surface of the target rod facing the ion source. The target includes a first metal layer on the surface of the target rod and a second metal layer positionable adjacent to the first metal layer facing the ion source. The second metal layer is a scandium layer.
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公开(公告)号：US11774631B2
公开(公告)日：2023-10-03
申请号：US17250041
申请日：2019-05-10
Applicant: Schlumberger Technology Corporation
Inventor： Joan Abadie , Mohammad Taghi Salehi , Koji Ito , John Rasmus , Xiao Bo Hong
IPC: G01V5/10
CPC classification number: G01V5/107
Abstract: A method can include receiving neutron data and density data for a borehole in a geologic formation; determining a migration length value for a layer of the geologic formation based at least in part on the neutron data; forward modeling at least the layer based at least in part on the migration length value and the density data; and outputting, based at least in part on the forward modeling, modeled neutron data for the layer.
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