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公开(公告)号：US11053762B2
公开(公告)日：2021-07-06
申请号：US16577509
申请日：2019-09-20
发明人： Gregory E. Gill , Charles Colpitt
IPC分类号： E21B29/02 , E21B33/12 , E21B47/117
摘要： Methods of plugging a hydrocarbon well by using degradable plugs plus a degradable tape to ensure pressure testing to 10,000 psi. When the plug is no longer needed, a degradation fluid or fluids are pumped downhole and that fluid or fluids degrade the degradable plugs and degradable tape, thus avoiding the production of any solids large enough to clog or block equipment.
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公开(公告)号：US20210123323A1
公开(公告)日：2021-04-29
申请号：US17248065
申请日：2021-01-07
发明人： Rune WOIE
IPC分类号： E21B37/02 , E21B47/005 , E21B47/117 , E21B33/14
摘要： The invention relates to the cleaning of a wellbore including a reservoir liner 3 and an upper portion 2 of the wellbore, by running in only one string into the wellbore and performing a reservoir liner cementing operation, displacing the cement 7 with completion fluid 8, followed using the same string to circulate mud in the upper completion, perform an inflow test on the reservoir liner 3, wash the upper completion and displace it to completion fluid 8.
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公开(公告)号：US10975687B2
公开(公告)日：2021-04-13
申请号：US16566711
申请日：2019-09-10
IPC分类号： E21B47/107 , E21B47/117 , G01N29/11 , G01N29/44 , G01V1/00
摘要： A method of detecting a leak event within a wellbore can include inducing a pressure differential within a wellbore comprising a fluid, obtaining a sample data set representative of the acoustic signal across a frequency spectrum while inducing the pressure differential, determining a plurality of frequency domain features of the sample data set, determining a presence of a leak event at one or more depths within the wellbore based on determining that the plurality of frequency domain features match a leak event signature, correlating the leak event with the induced pressure differential, and determining a presence and location of a leak within the wellbore based on the presence of the leak event and the correlating of the leak event with the induced pressure differential.
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公开(公告)号：US10954775B2
公开(公告)日：2021-03-23
申请号：US16070670
申请日：2017-01-18
申请人： EQUINOR ENERGY AS
IPC分类号： E21B47/06 , E21B49/00 , E21B47/117
摘要： A method of conducting a pressure integrity test for an underground formation includes: whilst fluid is supplied to and/or released and returned from the underground formation under pressure, using an automated monitoring and supervisory system to: monitor the pressure of the fluid being supplied to and/or returned from the underground formation in real-time, monitor a volume of the fluid that is supplied to and/or returned from the underground formation in real-time, determine one or more relationship(s) for the monitored pressure and the monitored volume as the pressure and the volume vary relative to each other and/or with time during the real-time monitoring thereof, and analyze the monitored pressure and volume data using the one or more relationship(s) either in real-time or after completion of the pressure integrity test in order to provide information and/or warnings concerning at least one parameter relating to the underground formation.
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公开(公告)号：US20210062617A1
公开(公告)日：2021-03-04
申请号：US17006392
申请日：2020-08-28
IPC分类号： E21B34/16 , E21B33/03 , E21B47/117 , E21B34/02
摘要： A system may include a connector coupled to a wellhead assembly. The system may also include a hydraulic power unit coupled to the connector and a valve of the wellhead assembly. The system may further include a controller in communication with the connector and the hydraulic power unit. The controller may be operable to receive one or more conditions associated with the connector and a valve of the wellhead assembly. The controller may also be operable to operate at least one of the connector and the valve through the hydraulic power unit based on the one or more condition.
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公开(公告)号：US10920526B2
公开(公告)日：2021-02-16
申请号：US16341342
申请日：2017-06-07
IPC分类号： E21B34/10 , E21B33/12 , E21B23/06 , E21B33/128 , E21B34/06 , E21B23/04 , E21B47/117
摘要： Hydraulic setting tools, packer setting systems, and methods thereof are provided. The hydraulic setting tool includes a mandrel containing a main flow path, a piston housing surrounding at least a portion of the mandrel, and a piston disposed between the piston housing and the mandrel. A cavity is defined at least partially between the piston, the piston housing, and the mandrel. The tool also includes a port passing through the mandrel and configured to provide fluid communication between the main flow path and of the cavity, and an isolation sleeve located within the mandrel and movable along the main flow path between a closed position and an opened position to control the fluid communication between the main flow path and the cavity via the port. A remotely activated valve is located downstream from the isolation sleeve along the main flow path and controls the fluid passing therethrough.
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公开(公告)号：US20210033485A1
公开(公告)日：2021-02-04
申请号：US17046539
申请日：2019-04-04
发明人： Arne Dankers , Seyed Ehsan Jalilian
IPC分类号： G01M3/24 , G01D5/353 , E21B47/107 , E21B47/117
摘要： There is described a method of locating an area of interest in a conduit, comprising: measuring multiple acoustic signals at multiple locations along the conduit; for each acoustic signal, determining its autocorrelation; and applying a relationship to the determined autocorrelations to estimate a location of the area of interest, wherein the relationship is between autocorrelations of acoustic signals measured in a modelled conduit and modelled areas of interest in the modelled conduit, wherein it is assumed that acoustic signals propagating along the modelled conduit reflect from at least one point in the modelled conduit.
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公开(公告)号：US20210025259A1
公开(公告)日：2021-01-28
申请号：US17066289
申请日：2020-10-08
IPC分类号： E21B33/124 , E21B33/129 , E21B33/134 , E21B33/138 , E21B33/12 , E21B23/06 , E21B47/117
摘要： A downhole tool assembly including a bridge plug and a cement retainer in tandem to be deployed into a wellbore on the same run or trip for remedial cementing of the wellbore.
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公开(公告)号：US10900349B2
公开(公告)日：2021-01-26
申请号：US15574482
申请日：2017-07-14
IPC分类号： E21B47/107 , E21B47/117 , E21B47/14 , G01V1/40 , G01V1/34
摘要： The subject technology relates to estimation of flow rates using acoustics in a subterranean borehole and/or formation. Other methods, systems, and computer-readable media are also disclosed. The subject technology includes drilling a wellbore penetrating a subterranean formation. The subject technology includes logging the wellbore using an acoustic sensing tool to obtain logged measurements, and obtaining acoustic pressure data associated with a leak source in the wellbore using the logged measurements. The subject technology also includes determining a flow rate (volumetric for fluid-based or mass for gas-based) of the leak source from the acoustic pressure data, and determining an area of the leak source from the determined flow rate. The subject technology also includes generating and providing, for display, a representation of the leak source using the flow rate and the area of the leak source.
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130.发明授权公开(公告)号：US10808522B2
公开(公告)日：2020-10-20
申请号：US15325209
申请日：2014-07-10
发明人： Paul Dickenson
IPC分类号： E21B47/107 , E21B47/113 , E21B47/135 , G01F1/66 , E21B47/117
摘要： Distributed fiber optic monitoring of vibration within a region of interest includes acquiring distributed vibration data from optical backscatter generated in response to an interrogating pulse of optical energy launched into an optical fiber deployed in a region of interest having a fluid flow, and generating a noise log from the distributed vibration data that includes a plurality of traces representing vibration energy above or below selected frequencies at a plurality of locations in the region of interest. Characteristics of the fluid flow in the region of interest are then determined based on the noise log.
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