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公开(公告)号：US11512536B2
公开(公告)日：2022-11-29
申请号：US17250079
申请日：2019-05-20
发明人： Gary R. Portwood , Luca Tedeschi , Alessandro Bertini , Simone Pallesi , Johann Obermair , James Layne Larsen , Alessio Cechi
摘要： A cutting bit includes a bit body and high-pressure body with a high-pressure fluid conduit therethrough. The high-pressure body and bit body are joined together. The high-pressure fluid conduit is configured to convey a fluid at greater than 14.5 ksi, and in some embodiments greater than 40 ksi. The high-pressure fluid conduit may direct the fluid through a nozzle in a fluid jet to weaken material, such as an earth formation. The cutting bit includes at least one roller cone and/or blades with cutting elements thereon to remove the weakened material. A cutting bit includes both high and low-pressure fluid conduits, and high and low-pressure fluid nozzles. The high-pressure nozzles receive fluid flow from a downhole pressure intensifier, and a connection between the bit and the downhole pressure intensifier includes rigid connectors, flexible connectors, or a combination thereof.
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公开(公告)号：US20210140245A1
公开(公告)日：2021-05-13
申请号：US17250079
申请日：2019-05-20
发明人： Gary R. Portwood , Luca Tedeschi , Alessandro Bertini , Simone Pallesi , Johann Obermair , James Layne Larsen , Alessio Cechi
IPC分类号： E21B10/18
摘要： A cutting bit includes a bit body and high-pressure body with a high-pressure fluid conduit therethrough. The high-pressure body and bit body are joined together. The high-pressure fluid conduit is configured to convey a fluid at greater than 14.5 ksi, and in some embodiments greater than 40 ksi. The high-pressure fluid conduit may direct the fluid through a nozzle in a fluid jet to weaken material, such as an earth formation. The cutting bit includes at least one roller cone and/or blades with cutting elements thereon to remove the weakened material. A cutting bit includes both high and low-pressure fluid conduits, and high and low-pressure fluid nozzles. The high-pressure nozzles receive fluid flow from a downhole pressure intensifier, and a connection between the bit and the downhole pressure intensifier includes rigid connectors, flexible connectors, or a combination thereof.
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