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公开(公告)号：US20240309736A1
公开(公告)日：2024-09-19
申请号：US18261634
申请日：2022-01-17
发明人： Helge Dale , Anders Brunvold
IPC分类号： E21B43/017 , E21B43/20 , E21B43/36
CPC分类号： E21B43/017 , E21B43/20 , E21B43/36
摘要： A subsea injection system may include one or more filter stages to filter seawater and output filtered seawater and waste seawater. The waste seawater may include particles removed from the filtered seawater. The subsea injection system may also include a combined pump having an injection pump to motivate the filtered seawater into a reservoir of a geological formation. The combined pump may also include a filter pump to motivate the seawater through the filter stages and a motor to drive the injection pump and the filter pump. The motor may drive the filter pump via an indirect coupling such that the motor is sealed from the filter pump at the indirect coupling.
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公开(公告)号：US20220136636A1
公开(公告)日：2022-05-05
申请号：US17574246
申请日：2022-01-12
发明人： Hans Fredrik Kjellnes , Ina Ekeberg , Svein-Arne Marthinussen , Helge Dale , Knut Klepsvik , Per Bloch Helmers
摘要： A system for dewatering a subsea gas pipeline includes a pig launcher at the pipeline's upper end, which may be at or near the sea surface, and a pig receiver at the pipeline's lower end, which may be at or near the sea floor. A multiphase pump unit is deployed at the pipeline lower end and is configured to provide sea water suction to aid in a pig train being forced downwards through pipeline. The multiphase pump is configured to handle some amount of gas leaking around the pig train. A choke system may allow sea water to enter the flowline, thereby lowering the gas volume fraction (GVF) and preventing the GVF from exceeding the ability of the multiphase pump. For deeper water applications, a second pump may be provided in series that may be a single pump if positioned downstream of the multiphase pump.
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公开(公告)号：US12098796B2
公开(公告)日：2024-09-24
申请号：US17574246
申请日：2022-01-12
发明人： Hans Fredrik Kjellnes , Ina Ekeberg , Svein-Arne Marthinussen , Helge Dale , Knut Klepsvik , Per Bloch Helmers
CPC分类号： F16L55/38 , F04D25/0686 , F04D31/00 , F17D1/005 , F04D13/086
摘要： A system for dewatering a subsea gas pipeline includes a pig launcher at the pipeline's upper end, which may be at or near the sea surface, and a pig receiver at the pipeline's lower end, which may be at or near the sea floor. A multiphase pump unit is deployed at the pipeline lower end and is configured to provide sea water suction to aid in a pig train being forced downwards through pipeline. The multiphase pump is configured to handle some amount of gas leaking around the pig train. A choke system may allow sea water to enter the flowline, thereby lowering the gas volume fraction (GVF) and preventing the GVF from exceeding the ability of the multiphase pump. For deeper water applications, a second pump may be provided in series that may be a single pump if positioned downstream of the multiphase pump.
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公开(公告)号：US20200095857A1
公开(公告)日：2020-03-26
申请号：US16579905
申请日：2019-09-24
发明人： Stig Kåre Kanstad , Helge Dale
摘要： A system for recirculating a portion of a liquid fraction of multiphase production fluid to a pump for enhance functionality thereof. The system includes a splitter assembly that obtains the multiphase production fluid from the pump. The splitter assembly utilizes multiple internal chambers to separate gas and liquid fractions of the fluid. A portion of the liquid fraction may then be recirculated back to the pump as indicated whereas the remainder of the liquid fraction may be recombined with the gas fraction for production.
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公开(公告)号：US11255178B2
公开(公告)日：2022-02-22
申请号：US16579905
申请日：2019-09-24
发明人： Stig Kåre Kanstad , Helge Dale
摘要： A system for recirculating a portion of a liquid fraction of multiphase production fluid to a pump for enhanced functionality thereof. The system includes a splitter assembly that obtains the multiphase production fluid from the pump. The splitter assembly utilizes multiple internal chambers to separate gas and liquid fractions of the fluid. A portion of the liquid fraction may then be recirculated back to the pump as indicated whereas the remainder of the liquid fraction may be recombined with the gas fraction for production.
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公开(公告)号：US10859084B2
公开(公告)日：2020-12-08
申请号：US15138921
申请日：2016-04-26
发明人： Åsmund Valland , Helge Dale
IPC分类号： F04D3/00 , E21B43/20 , E21B43/12 , F04D29/044 , F04D13/06 , F04D13/08 , F04D29/041
摘要： A subsea water injection pump includes components that are cooled and lubricated by the process fluid. The pump includes opposing stages of impellers in a “back-to-back” arrangement such that the axial forces of the impeller stages partially or nearly fully offset each other. In some cases, a combination of barrier fluid and process fluid is used for lubrication and cooling.
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公开(公告)号：US10712183B2
公开(公告)日：2020-07-14
申请号：US16083115
申请日：2016-03-09
发明人： Helge Dale
摘要： A method for determining flow rate of a multiphase fluid. The method includes measuring a first pressure differential (316) of the multiphase fluid flowing through a rotodynamic pump (310) operating at a rotational speed thereby driving the multiphase fluid, measuring a second pressure differential (326) of the multiphase fluid flowing through a portion (320) of a fluid conduit positioned in series with said rotodynamic pump, and determining, based on the first and second pressure differentials and the rotational speed of said rotodynamic pump, a flow rate of the multiphase fluid.
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公开(公告)号：US10160662B2
公开(公告)日：2018-12-25
申请号：US15138850
申请日：2016-04-26
发明人： Per Gunnar Grimstad , Åsmund Valland , Helge Dale
IPC分类号： E21B43/20 , C02F1/00 , B01D29/56 , B01D29/66 , B01D29/90 , B01D61/14 , B01D61/16 , B01D65/02 , C02F1/44 , B01D61/00 , C02F103/08
摘要： A subsea system is configured to inject seawater into a subterranean formation. The system includes a sub-micron filtration module and a plurality of pumps and a plurality of other filtering devices arranged in series.
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公开(公告)号：US20220252071A1
公开(公告)日：2022-08-11
申请号：US17353718
申请日：2021-06-21
发明人： Anders Brunvold , Aasmund Valland , Helge Dale
摘要： A subsea fluid processing system includes an electric motor that rotates a shaft on which impellers are fixedly mounted. Diffusors are static and fixed to the pump housing. The electric motor includes a rotor surrounding the shaft and a stator that is filled with a dielectric stator fluid. The stator is sealed or “canned.” The inner surface of the stator which faces the rotor is canned with a canning non-metallic material. The motor, as well as bearings for the rotating shaft are lubricated and cooled with a fluid that in some cases is taken from the process fluid and some alternative source. Alternative sources include: MEG, methanol, treated seawater and untreated seawater.
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公开(公告)号：US20220252070A1
公开(公告)日：2022-08-11
申请号：US17171305
申请日：2021-02-09
发明人： Anders Brunvold , Aasmund Valland , Helge Dale
摘要： A subsea fluid processing system includes an electric motor that rotates a shaft on which impellers are fixedly mounted. Diffusors are static and fixed to the pump housing. The electric motor includes a rotor surrounding the shaft and a stator that is filled with a dielectric stator fluid. The stator is sealed or “canned.” The inner surface of the stator which faces the rotor is canned with a canning non-metallic material. The motor, as well as bearings for the rotating shaft are lubricated and cooled with a fluid that in some cases is taken from the process fluid and some alternative source. Alternative sources include: MEG, methanol, treated seawater and untreated seawater.
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