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公开(公告)号：US20220010656A1
公开(公告)日：2022-01-13
申请号：US17293618
申请日：2019-11-14
发明人： Robert Utter , Rod Shampine , Dmitriy Potapenko , Yu Wang , Iain Cooper
摘要： A downhole tool system may include one or more containers to hold waste product and a tractor to convey the one or more containers to a storage location within a wellbore. The downhole tool system may also include an anchor to seal against the wellbore and secure the containers at the storage location. Additionally, the downhole tool system may include a disconnect tool to separate the tractor from the containers such that the tractor may be removed from the wellbore while leaving the containers at the storage location.
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公开(公告)号：US20220010639A1
公开(公告)日：2022-01-13
申请号：US17485657
申请日：2021-09-27
申请人： Guy Wheater , Stuart Huyton
发明人： Guy Wheater , Stuart Huyton
摘要： The articulated wireline hole finder is a modular device which attaches to the bottom of a wireline logging tool-string to aid conveyance down irregular shaped and/or deviated boreholes which possess features such as ledges, washouts, and contractions, that might otherwise terminate full descent of the tool-string to the bottom of the borehole and thereby compromise the wireline data acquisition objectives. Elements of the articulated wireline hole finder may include a low friction roller nose assembly and spacer sub, an articulated spring joint, that transfers tool-string weight and directs lateral movement of the roller nose towards hole center, and a pair of five arm centralizers that possess a wide dynamic range.
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公开(公告)号：US20220010630A1
公开(公告)日：2022-01-13
申请号：US17369323
申请日：2021-07-07
发明人： Simone MUSSO
摘要： Embodiments provide an expandable meshed component for guiding an untethered measurement device used in a subterranean well. The expandable meshed component includes an uphole radial portion, an intermediate radial portion, a downhole radial portion, an outer meshed wall, and an inner meshed wall. The expandable meshed component has a density less than a fluidic component occupying the space. A method for guiding an untethered measurement device used in a subterranean well includes deploying a compressed expandable meshed component tethered to the untethered measurement device, disconnecting the compressed expandable meshed component and the untethered measurement device, and releasing a sleeve surrounding the compressed expandable meshed component such that the expandable meshed component expands, ascends, and fits into an annulus.
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公开(公告)号：US20210351700A1
公开(公告)日：2021-11-11
申请号：US16332974
申请日：2018-04-11
摘要： A current booster includes a buck-type converter including an input node, an output node, an inductor connected in series between the input and output nodes, a first capacitor connecting between the output node and ground, a second capacitor connecting between the input node and ground, a first switch connected in series between the input node and the inductor, and a second switch connecting a node between the first switch and the inductor to ground. A controller is operatively connected to control switching of the first and second switches. The controller includes logic configured to drive switching of the first and second switches in a first mode to maintain voltage at the output node if current at the input node is below a set point, and in a second mode to maintain constant current at the input node if current at the input node reaches the set point.
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公开(公告)号：US11162312B2
公开(公告)日：2021-11-02
申请号：US16334448
申请日：2017-10-04
发明人： Gerald McInally
摘要： A downhole tractor has at least one hydraulic drive section, comprising a first hydraulic supply line for actuating at least one hydraulic cylinder for actuating at least one tractor arm and a second hydraulic supply line for driving at least one hydraulic motor for rotating at least one tractor wheel. The downhole tractor further comprises a hydraulic power pack configured for supplying hydraulic fluid to the hydraulic supply lines. The hydraulic power pack comprises a pressure-setting valve provided in between the first hydraulic supply line and the second hydraulic supply line, wherein the pressure-setting valve is configured for feeding excess hydraulic fluid in the first hydraulic supply line to the second hydraulic supply line to increase the speed of the downhole tractor.
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公开(公告)号：US11111774B2
公开(公告)日：2021-09-07
申请号：US16759847
申请日：2018-10-29
申请人： PETROMAC IP LIMITED
IPC分类号： E21B47/013 , E21B47/017 , E21B23/14
摘要： A sensor transportation apparatus for conveying a sensor assembly through a wellbore comprises at least one engagement structure to connect the sensor transportation apparatus to the sensor assembly, at least one axle, a bearing connected to the axle, and a wheel connected to the bearing and provided with a shaft seal to prevent or reduce debris from the wellbore entering the bearing, and a lubrication delivery system to provide a lubricant to the bearing at a pressure which is greater than ambient wellbore pressure. The lubrication system comprises a bellows formation, and the apparatus comprises a housing to contain the lubricant, the housing in fluid communication with the bearing, the bellows formation sealingly mounted to the housing with at least a portion of the bellows received within the housing.
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公开(公告)号：US20210262303A1
公开(公告)日：2021-08-26
申请号：US17007098
申请日：2020-08-31
IPC分类号： E21B23/14 , E21B7/06 , E21B23/10 , E21B43/116 , E21B43/12 , E21B44/02 , E21B47/01 , E21B47/12
摘要： A method for controlling a pump-down operation in a wellbore includes selecting a target value for downhole tension of a support cable and a recommended job speed to convey a wireline tool string down a section of the wellbore, generating a line speed signal for controlling a line speed of the support cable and a pumprate signal to control a pumprate of a hydraulic fluid in the wellbore, determining a first error between the target value for downhole tension and a measured value of the downhole tension, determining a second error between the recommended job speed and an actual line speed, and maintaining the target value for the downhole tension by simultaneously controlling the line speed and the pumprate using a value for the line speed signal and a value for the pumprate signal generated based on the first and second errors.
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28.发明申请公开(公告)号：US20210238981A1
公开(公告)日：2021-08-05
申请号：US17116948
申请日：2020-12-09
IPC分类号： E21B47/005 , E21B33/14 , E21B23/14 , E21B47/04 , E21B47/135 , E21B47/14
摘要： A method includes attaching a fiber optic cable to a cementing tool configured to attach to a cementing plug displace cement in a hydrocarbon well. The method can also include deploying the cementing tool in the hydrocarbon well to cause the cementing plug to begin releasing cement to form to displace cement to form a cement sheath in the hydrocarbon well. Additionally, the method can also include receiving, by a sensor receiver at a wellhead of the hydrocarbon well, a signal with cementing data as the cement sheath cures. Furthermore, the method can also include determining whether the cement sheath is curing properly. A system and a non-transitory computer readable medium are also provided.
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公开(公告)号：US11072983B2
公开(公告)日：2021-07-27
申请号：US16679366
申请日：2019-11-11
摘要： A system includes a cable and a toolstring. The toolstring may couple to the cable to enable the toolstring to be placed in a wellbore. The toolstring includes a sensor that can collect measurements relating to the wellbore. An electromagnetic or anchoring device may selectively hold the toolstring or the cable against a surface of the wellbore.
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公开(公告)号：US11047190B2
公开(公告)日：2021-06-29
申请号：US16343714
申请日：2018-07-02
IPC分类号： E21B23/14 , E21B23/00 , B60C7/16 , E21B41/00 , E21B4/18 , E21B43/116 , E21B47/12 , B60C7/14 , B60C11/00
摘要： Provided are tractor wheels for a downhole tractor. An example tractor wheel comprises a series of continuous springs disposed on the circumference of the tractor wheel, wherein the individual continuous springs in the series of continuous springs are separated by a gap, and a void disposed on the interior of the tractor wheel and that is continuous about the circumference of the tractor wheel.
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