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公开(公告)号：US12065925B2
公开(公告)日：2024-08-20
申请号：US17002130
申请日：2020-08-25
IPC分类号： E21B47/095 , E21B33/16 , E21B23/04
CPC分类号： E21B47/095 , E21B33/165 , E21B23/04
摘要： The position of a droppable object (e.g., a cementing plug or drillpipe dart) in a cased wellbore may be determined in real time during a cementing operation. A pressure data acquisition system is installed at a wellsite and a pressure transducer is installed at the wellhead. As the droppable object travels through casing it encounters regions with a positive or a negative change of inner cross-sectional dimension. The droppable object generates a pressure pulse as it passes through the regions. The pressure pulse and associated reflections are detected by the pressure transducer, and the signals are processed mathematically to determine the current position of the droppable object.
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公开(公告)号：US20240229599A1
公开(公告)日：2024-07-11
申请号：US18152737
申请日：2023-01-10
发明人： Eric R. Evans , Jobby T. Jacob
CPC分类号： E21B33/165 , E21B34/101 , E21B2200/06
摘要： A plug assembly having valve chamber chargeable with pressure from above or below the plug assembly. The charged chamber is used to selectively move an external sleeve to open fluid communication between the tubular above and below the plug assembly.
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公开(公告)号：US12024977B2
公开(公告)日：2024-07-02
申请号：US17987367
申请日：2022-11-15
申请人： FORUM US, INC.
发明人： Andrew Webber , Jeffery Morrison
CPC分类号： E21B33/165 , E21B33/146
摘要： Aspects of the disclosure relate to stage collars and related methods of operation thereof for stage cementing operations. In one implementation, a stage collar for stage cementing operations includes a barrel, and an activation sleeve disposed at least partially in the barrel. The activation sleeve includes first fluid openings. The stage collar includes an activation ring that includes an activation seat. The stage collar includes a first set of shear fasteners coupling the activation ring to the activation sleeve, and a second set of shear fasteners coupling the activation sleeve to the barrel. The stage collar includes a setting piston, and a closing sleeve disposed at least partially in the barrel. The closing sleeve includes second fluid openings. The stage collar includes a third set of shear fasteners coupling the closing sleeve to the barrel.
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公开(公告)号：US11686182B2
公开(公告)日：2023-06-27
申请号：US17504665
申请日：2021-10-19
CPC分类号： E21B43/10 , E21B33/165 , E21B2200/06
摘要： A running tool sets and cements a liner in a borehole. While the tool's bypass section is closed, a plug deployed to the tool diverts hydraulic pressure to set a liner hanger in the borehole. The setting plug is unseated, and the bypass section is switched opened by deploying another plug to an opening seat and shifting a control sleeve open relative to a bypass port. While the tool's packoff remains sealed in the hanger, cement pumped out the bypass port is bullheaded into a lap of the liner and borehole. When cementing is complete, the bypass section is switched closed by deploying another plug to a closing seat and shifting the control sleeve closed relative to the bypass port. The bypass section is then placed in a flow-through condition where fluid communication is reestablished through the tool to the liner by allowing fluid to flow past the plugs in the tool.
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公开(公告)号：US11873697B2
公开(公告)日：2024-01-16
申请号：US16965627
申请日：2019-08-30
发明人： Lonnie Carl Helms , Frank Vinicio Acosta Villarreal , Avinash Gopal Dharne , William M. Moeny , Neal Gregory Skinner
CPC分类号： E21B33/165 , E21B7/24
摘要： The present disclosure includes a plug for cementing a wellbore. The plug may include a cylinder. The cylinder may include at least one body including a non-conductive material with conductive filaments dispersed within the non-conductive material. The present disclosure also includes float equipment for cementing a wellbore. The float equipment may include a casing segment including an inner surface, drillable material affixed to the inner surface of the casing segment, and a check valve attached to the drillable material. The drillable material may include a non-conductive material and conductive filaments dispersed within the non-conductive material.
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公开(公告)号：US11767735B2
公开(公告)日：2023-09-26
申请号：US17664618
申请日：2022-05-23
发明人： Myles Martin , Randy Martin
IPC分类号： E21B33/13 , B01F33/502 , E21B33/16 , B01F23/53 , B01F25/20 , B01F27/112 , B01F33/82 , B01F101/28
CPC分类号： E21B33/165 , B01F23/53 , B01F25/20 , B01F27/112 , B01F33/502 , B01F33/82 , B01F2101/28
摘要： An all-in-one mobile wellsite service unit for providing equipment and services at an oil and gas well related to well abandonment is provided. The mobile unit comprises a water storage tank, at least one cement mixing barrel for mixing a cement slurry, a progressive cavity pump for pumping the cement slurry, and a hydraulic hose for connecting to a hydraulic power source to provide power to the cement mixing barrel and the progressive cavity pump. The mobile unit may also contain downhole tools needed for well abandonment, including a well cleaning tool, a cementing tool, a hydraulic packer, and more.
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公开(公告)号：US11761299B2
公开(公告)日：2023-09-19
申请号：US17747367
申请日：2022-05-18
发明人： Adam Anderson
IPC分类号： E21B33/16 , E21B33/134 , E21B23/04 , E21B47/092
CPC分类号： E21B33/165 , E21B23/0414 , E21B23/0417 , E21B33/134 , E21B47/092
摘要： A plug assembly for a cementing operation in a well includes a bottom wiper plug configured to land in or near the toe of a well and receive a cement slurry therethrough, a top wiper plug releasably coupled to the bottom wiper plug and configured to land on the bottom wiper plug after the cement slurry is received through the bottom wiper plug, a bridge plug coupled to the top wiper plug and configured to move toward the bottom wiper plug with the top wiper plug after the bottom wiper plug is landed in or near the toe of the well, and a sensor sub coupled to the bridge plug and configured to detect a gate in the well.
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公开(公告)号：US11655687B2
公开(公告)日：2023-05-23
申请号：US17315901
申请日：2021-05-10
发明人： Carl D. Lindahl , Bandar S. Malki
CPC分类号： E21B33/165 , E21B33/146 , E21B34/063
摘要： An apparatus for flowing and mixing cement within a subterranean formation includes a housing, a flow control device, and baffles. The housing is configured to contain a cement additive. The housing includes a first end and a second end. The first end is configured to couple to a cement retainer. The flow control device is disposed at the second end of the housing. The baffles are disposed within the housing.
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公开(公告)号：US12000239B2
公开(公告)日：2024-06-04
申请号：US18134440
申请日：2023-04-13
发明人： Carl D. Lindahl , Bandar S. Malki
CPC分类号： E21B33/165 , E21B33/146 , E21B34/063
摘要： An apparatus for flowing and mixing cement within a subterranean formation includes a housing, a flow control device, and baffles. The housing is configured to contain a cement additive. The housing includes a first end and a second end. The first end is configured to couple to a cement retainer. The flow control device is disposed at the second end of the housing. The baffles are disposed within the housing.
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公开(公告)号：US11873705B1
公开(公告)日：2024-01-16
申请号：US17969968
申请日：2022-10-20
发明人： Mohammed Sameer Almajed , Ahmed M. Alghuryafi , Zuhair Mohammed Alhassan , Nasser Mohammed Alhassan
IPC分类号： E21B33/13 , E21B43/26 , E21B33/134 , E21B33/16
CPC分类号： E21B43/261 , E21B33/134 , E21B33/165
摘要： A method of fracturing a rock formation includes cementing a production pipe to a wellbore within the rock formation, wherein a seat is attached to an inner surface of the production pipe. The method further includes forming access ports along a first section of the wellbore that fluidly connect the production pipe to the wellbore, delivering treatment fluid from the production pipe to the wellbore through the access ports, flowing formation fluid from the rock formation to the production pipe through the access ports, and closing an opening in the seat to isolate the first section of the wellbore from a second section of the wellbore located above the first section.
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