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公开(公告)号：US20190003267A1
公开(公告)日：2019-01-03
申请号：US15748674
申请日：2015-11-18
CPC分类号： E21B17/20 , E21B17/05 , E21B23/14 , E21B33/072
摘要： A chain of bend-limiter segments is coupled together. The chain has a first end and a second end. The chain is bendable such that an angle between the first end and the second end is at least N degrees and a radius of curvature of the chain is at least M. A cable is inserted through the chain from the first end to the second end. The chain and the cable are coupled to a tool. The tool is pulled using the cable. The chain maintains a radius of curvature of the cable greater than M and prevents a stress level in the cable from exceeding a yield point.
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公开(公告)号：US20200291744A1
公开(公告)日：2020-09-17
申请号：US16084130
申请日：2017-09-11
发明人： Stewart Darold Reed
摘要： A downhole tool for sand fall-back prevention can include a sand bridge inducer configured to be mounted in a flow path through a housing in a downhole tool. The sand bridge inducer can define a longitudinal axis and having a main opening therethrough, wherein the sand bridge inducer includes one or more angled passageways defined through a wall of the sand bridge inducer that are oblique relative to the longitudinal axis. The sand bridge inducer can be segmented with a respective upper segment and lower segment at each respective one of the one or more angled passageways, wherein the respective upper and lower segments are connected to one another across the respective angled passageway for movement along the longitudinal axis relative to one another to enlarge the respective angled passageway for accommodating passage of larger particles and/or relieving pressure differentials caused by high flow rates and/or solids restricting flow.
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公开(公告)号：US20200271811A1
公开(公告)日：2020-08-27
申请号：US16063695
申请日：2016-08-31
摘要： A system for processing DAS VSP surveys in real-time is provided. The system includes a DAS data collection system coupled to at least one optical fiber at least partially positioned within a wellbore and configured to repeatedly activate a seismic source of energy. The system further includes an information processing system connected to the DAS data collection system. A seismic dataset is received from the DAS data collection system. The seismic dataset includes a plurality of seismic data records. Two or more of the plurality of seismic data records are combined into a stack. A quality metric indicative of a desired signal-to-noise ratio or incoherence of the stack is determined for each processed seismic dataset collected from a repeated source. Instructions are sent to the DAS data collection system to stop activating the seismic source, in response to determining that the quality metric has reached a predefined threshold.
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公开(公告)号：US20180329099A1
公开(公告)日：2018-11-15
申请号：US15578586
申请日：2016-12-22
发明人： Cemal Erdimer , Mark Elliott Willis , Amit Padhi
CPC分类号： G01V1/48 , G01H9/004 , G01V1/226 , G01V1/42 , G01V2210/161
摘要： A method for processing distributed acoustic sensing (DAS) vertical seismic profiling (VSP) data is provided. The method includes operations to receive DAS data associated with an optical fiber's response to seismic energy applied by three seismic energy sources. The three seismic energy sources each configured to apply seismic energy to the optical fiber in a direction that is orthogonal to a direction of seismic energy applied by the other two seismic energy sources, the optical fiber is at least partially positioned within a wellbore, and the DAS data includes three components directed in an axial direction of the wellbore associated with energy application by the respective three seismic energy sources. The method further includes operations to apply reciprocity to the three components to model an equivalent vertical point force source in the wellbore with receivers configured to receive the three components at a location of the respective three seismic energy sources.
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公开(公告)号：US20180313206A1
公开(公告)日：2018-11-01
申请号：US15533991
申请日：2015-02-12
IPC分类号： E21B47/09 , E21B33/12 , E21B33/05 , E21B17/20 , E21B47/12 , E21B47/14 , E21B33/16 , E21B33/068 , E21B17/00
摘要： A cement head including a tubular body having a top end and a bottom end, and a borehole arranged through at least a portion of the tubular body; a cement plug arranged in the borehole and configured to exit the cement head upon releasing a retention device; and a spool assembly arranged on the tubular body, wherein the spool assembly comprises a drum rotatable about a central axis and a continuous cable having a first end and a second end, the first end being attached to the drum and the second end being attached to the cement plug, and wherein rotating the drum about the central axis results in spooling or unspooling the continuous cable about the drum.
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公开(公告)号：US20240361482A1
公开(公告)日：2024-10-31
申请号：US18521686
申请日：2023-11-28
发明人： Xusong WANG , Christopher Michael Jones , Xiang Wu , Jichun Sun , Ho Yin Ma
CPC分类号： G01V1/282 , G01V1/30 , G01V2210/6161
摘要： Described herein are systems and techniques for predicting sample characteristics in a wellbore. An example method can include determining a set of values of estimated characteristics of a sample in a wellbore; determining, via a proxy model, a predicted ultrasonic wave response corresponding to the set of values of the estimated characteristics of the sample; based on a comparison of the predicted ultrasonic wave response with a measured ultrasonic wave response associated with the sample, determining an error associated with the predicted ultrasonic wave response; determining whether the error associated with the predicted ultrasonic wave response is below a threshold; and determining whether to update the set of values of the estimated characteristics of the sample based on determining whether the error is below the threshold.
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公开(公告)号：US20240360753A1
公开(公告)日：2024-10-31
申请号：US18767702
申请日：2024-07-09
发明人： Hsu-Hsiang Wu , Yijing Fan , Li Pan , Jin Ma
IPC分类号： E21B47/024 , E21B49/00 , G01V3/30 , G01V3/38 , G01V13/00
CPC分类号： E21B47/024 , E21B49/00 , G01V3/30 , G01V3/38 , G01V13/00
摘要： A system can calibrate inconsistencies in a wellbore tool. The system can receive a first set of measurements and a second set of measurements with respect to different electromagnetic antennas. The system can decouple a first multi-components tensor corresponding to the first set of measurements and a second multi-components tensor corresponding to the second set of measurements. The system can determine, using the decoupled first and second multi-components tensors, a scaling factor. The system can apply the scaling factor to a raw measurement received with respect to an electromagnetic antenna of the wellbore tool positioned in a wellbore to decouple a third multi-components tensor or to decoupled components of a fourth multi-components tensor for controlling a wellbore operation.
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公开(公告)号：US20240360744A1
公开(公告)日：2024-10-31
申请号：US18209013
申请日：2023-06-13
IPC分类号： E21B43/12
CPC分类号： E21B43/128 , E21B43/08 , E21B47/008
摘要： An intake section for an electric submersible pump (ESP) assembly comprising an outer housing with a plurality of inflow ports distributed across an outer surface of the intake housing in a proportional pattern. The size and shape of the plurality of inflow ports within the proportional pattern are configured to distribute the inflow flowrate of fluids across the outer surface of the intake housing.
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公开(公告)号：US12129747B2
公开(公告)日：2024-10-29
申请号：US17837601
申请日：2022-06-10
CPC分类号： E21B43/128 , F04D13/10 , H02K5/132 , H02K7/003 , H02K17/165
摘要： A downhole electric submersible pump (ESP) assembly. The downhole ESP assembly comprises a hybrid permanent magnet motor (PMM) comprising a first drive shaft, a stator, and a rotor comprising a first permanent magnet element, a second permanent magnet element, and an induction squirrel cage, wherein the rotor is mechanically coupled to the first drive shaft and disposed within the stator; a seal section having a second drive shaft coupled to the first drive shaft; and a pump assembly having a third drive shaft coupled to the second drive shaft.
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公开(公告)号：US12129723B2
公开(公告)日：2024-10-29
申请号：US16771087
申请日：2018-01-10
CPC分类号： E21B21/08 , B01D21/262 , B01D21/267 , E21B7/15 , E21B7/00
摘要： Methods and systems for managing dielectric properties of a pulsed power drilling fluid are provided. In one embodiment, the methods include introducing a drilling fluid into a drilling pipe that extends into a portion of a wellbore; separating the drilling fluid into a solids rich portion and a solids lean portion in the drilling pipe at a location proximate to a pulsed power drill bit; allowing the solids lean portion of the drilling fluid to flow through the pulsed power drill bit; and drilling at least a portion of a wellbore. In some embodiments, the methods and systems include passing the drilling fluid through one or more hydrocyclones. In some embodiments, the methods and systems include passing the drilling fluid through one or more centrifuges.
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