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公开(公告)号：US11230903B2
公开(公告)日：2022-01-25
申请号：US16818784
申请日：2020-03-13
发明人： James A. Rochen , Nauman H. Mhaskar
IPC分类号： E21B33/129
摘要： A downhole tool, such as a fracture plug used during a fracture operation, installs in a downhole tubular, such as casing. The tool has a mandrel with a sealing element disposed thereon between uphole and downhole ends. Slip assemblies on the mandrel can be moved to engage the downhole tubular. The slip assemblies have inserts. The inserts have a body defining an internal cavity at least partially therein. The body is composed of a ceramic material having a first density of about 3 g/cc to about 6 g/cc. A volume of the insert can be about 0.4 cc to about 0.6 cc, and a mass of the insert can be about 1.2 g to about 3.6 g. In one example, the ceramic material is silicon nitride. The cavity can be filled with a low density filler material.
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公开(公告)号：US20220003069A1
公开(公告)日：2022-01-06
申请号：US17477113
申请日：2021-09-16
摘要： A stage cementing system includes a stage cementing assembly having a stage tool. The stage tool has an outer mandrel, an inner mandrel coupled to and disposed inside of the outer mandrel, an annular chamber between the outer mandrel and the inner mandrel, a first outer port through the outer mandrel, and longitudinally spaced first and second inner ports through the inner mandrel. The stage cementing system further includes an inner string assembly configured to be located inside the inner mandrel. The inner string assembly has a tubular body having a central throughbore and longitudinally spaced first and second side ports, a lower external seal element below the first and second side ports, a middle external seal element between the first and second side ports, and an upper external seal element above the first and second side ports.
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公开(公告)号：US20210381334A1
公开(公告)日：2021-12-09
申请号：US16896185
申请日：2020-06-08
发明人： Brandon Goodman , Cesar Garcia , James Rochen
IPC分类号： E21B33/129 , E21B33/128
摘要： A downhole tool with a radially expandable sealing element, such as a packer or plug. The sealing element employs metallic support rings disposed on the sealing element outer surface for preventing extrusion during run-in and for clamping the sealing element to the tool.
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公开(公告)号：US20210355765A1
公开(公告)日：2021-11-18
申请号：US16874266
申请日：2020-05-14
IPC分类号： E21B19/16 , E21B17/042 , G06T7/00
摘要： A method of making-up tubular string components can include inputting to an image processor image data output from at least one camera, the image processor in response detecting positions of a tubular and a mark on another tubular, threading the tubulars with each other while inputting position data from the image processor to a controller, and the controller terminating the threading in response to the position of the mark relative to the position of the first tubular being within a predetermined range. Another method of making-up tubular string components can include, in response to inputting image data to an image processor, the image processor detecting longitudinal positions of two tubulars, threading the tubulars with each other, and a controller terminating the threading in response to the longitudinal position of one tubular relative to the longitudinal position of the other tubular being within a predetermined range.
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公开(公告)号：US11162308B2
公开(公告)日：2021-11-02
申请号：US16210107
申请日：2018-12-05
IPC分类号： E21B19/07 , E21B19/10 , E21B19/20 , E21B19/087
摘要： A tubular handling assembly includes a mandrel; a plurality of gripping elements for gripping a tubular, the plurality of gripping elements coupled to and rotatable with the mandrel; one or more accumulators; a first actuator configured to supply fluid to the one or more accumulators; and a second actuator configured to receive fluid from at least one of the one or more accumulators and to actuate the plurality of gripping elements.
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公开(公告)号：US20210332686A1
公开(公告)日：2021-10-28
申请号：US17287014
申请日：2018-10-26
摘要： Systems and methods for predicting and optimizing the effects of acidizing treatment of carbonate rock are disclosed. The disclosed methods predict the conflicting effects of increased production (i.e., wormhole creation) and reduced rock compressive strength due to acid rock reactions. The mechanical stability of stimulated wellbores, such as horizontal wellbores, can be determined under different acidizing conditions, such as acid type and volume. The acidizing conditions can be optimized to maximize short and long-term production.
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公开(公告)号：US11136877B2
公开(公告)日：2021-10-05
申请号：US16532771
申请日：2019-08-06
IPC分类号： E21B7/06 , E21B47/022 , E21B47/024 , E21B7/04 , E21B44/00 , E21B47/12 , G01D5/14
摘要： Angular position readings are obtained during rotation of an apparatus in a borehole, and angular rate readings are obtained over time of the rotation. The angular rate readings are adjusted based at least on the angular position readings. The angular position measurement does not require calibrated magnetometers or accelerometers to function. Additionally, a dynamic scale factor calculation for an angular rate gyroscope (ARG) allows the ARG to be used over a much wider operating range than without such a calculation. Finally, an integrated angular rate from the ARG calibrated for bias and scale factor fills in positional information between the magnetometers' zero crossings to deliver a high resolution hybrid angular position system capable of measuring precise angular position at high and irregular downhole rotation rates.
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公开(公告)号：US11131151B2
公开(公告)日：2021-09-28
申请号：US15448297
申请日：2017-03-02
发明人： Kevin Wood
摘要： Apparatus and methods are for coupling a drive unit to a tool adapter. A drive unit includes a drive stem; a plurality of sliding coupling members; a retainer; a torque profile; a plurality of drive stem ports; a coupling collar; coupling recesses; a plurality of transmission units; and/or first portions of a hydraulic coupling unit. A tool adapter includes a tool stem; a tool stem sleeve; coupling recesses; a torque profile; a plurality of sliding coupling members; and/or second portions of the hydraulic coupling unit. A method of coupling a drive unit to a tool adapter includes positioning the tool adapter below the drive unit; stabbing a drive stem into an interior of a tool stem sleeve; coupling torque between the drive unit and the tool adapter; and coupling load between the drive unit and the tool adapter by engaging a plurality of sliding coupling members.
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公开(公告)号：US11125346B2
公开(公告)日：2021-09-21
申请号：US16398480
申请日：2019-04-30
摘要： A gas migration prevention module can include a housing, control line connections configured to connect the housing between control line sections, spaced apart pistons sealingly received in the housing, and a fluid volume defined between the pistons. A control line system can include an upper control line section, a lower control line section in fluid communication with a downhole tool, and a gas migration prevention module connected between the upper and lower control line sections, the lower control line section providing fluid communication between the gas migration prevention module and the downhole tool, and the gas migration prevention module comprising spaced apart pistons and a fluid volume defined between the pistons, the fluid volume being in fluid communication with an exterior of the gas migration prevention module.
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公开(公告)号：US20210270108A1
公开(公告)日：2021-09-02
申请号：US16805941
申请日：2020-03-02
IPC分类号： E21B37/00
摘要： A method and apparatus for operating a debris removal tool. In one embodiment, the tool includes a cover assembly having a plurality of covers spaced from one another along the length of the assembly creating a gap between adjacent covers. A carrier disposed within the cover assembly is axial movable relative thereto and has a plurality of magnet groups spaced from one another along its length. In an unactuated position of the tool, each of the plurality of magnet groups is under one of the plurality of covers and in an actuated position, each of the plurality of magnets is in a gap between covers.
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