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公开(公告)号：US10150908B2
公开(公告)日：2018-12-11
申请号：US15033507
申请日：2014-09-30
摘要： A method of depleting a given analyte from a water source is provided. The method is applicable to water used in oil recovery, water used in natural gas recovery, the treatment of water wells, and for water used in hydraulic fluids for fracturing processes, such as water to be used in proppants or fracking fluids. The method involves depleting an analyte from a water source, said method comprising contacting a water source with a superparamagnetic or paramagnetic nanoparticle; complexing the analyte with the particle; and removing the analyte-particle complex by applying a magnetic field so as to provide a water source with depleted analyte content. The depleted water can then be pumped into one or more connecting injection well(s) in an oil field pushing the crude oil 10 towards one or more production well(s) thereby allowing for enhanced oil recovery from the production wells.
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公开(公告)号：US10138410B2
公开(公告)日：2018-11-27
申请号：US15033495
申请日：2014-09-30
摘要： A method of depleting an ion from a water source is provided. The method is applicable to water used in oil recovery, water used in natural gas recovery, the treatment of water wells, and for water used in hydraulic fluids for fracturing processes, such as water to be used in proppants or fracking fluids. The method involves depleting an ion from a water source, said method comprising contacting a water source with a superparamagnetic or paramagnetic nanoparticle; complexing the ion with the particle; and removing the ion-particle complex by applying a magnetic field so as to provide a water source with depleted ion content. The depleted water can then be pumped into one or more connecting injection well(s) in an oil field pushing the crude oil towards one or more production well(s) thereby allowing for enhanced oil recovery from the production wells.
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公开(公告)号：US11359464B2
公开(公告)日：2022-06-14
申请号：US16466218
申请日：2017-11-01
摘要： A method of creating a horizontal wellbore section comprises drilling the section in at least two stages. The method comprises drilling a first horizontal bore section. The first horizontal bore section is then provided with a first liner having a wall including initially-closed flow ports. The first liner isolates the wall of the first bore section. A second horizontal bore section is then drilled beyond the first horizontal bore section. The second horizontal bore section is provided with a second liner. Stimulation fluid is then directed into the first and second liners so that the stimulation fluid passes through the wall of the second liner to stimulate the second horizontal bore section. The flow ports in the wall of the first liner are then opened so that the stimulation fluid passes through the wall of the first liner to stimulate the first horizontal bore section.
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公开(公告)号：US10301916B2
公开(公告)日：2019-05-28
申请号：US15301656
申请日：2015-03-03
摘要： In a wellbore (1) provided with a non-cemented perforated liner (6) forming a continuous annular space (7) between the liner and the formation (2), the liner having an original perforation pattern being optimized for acid stimulation of the wellbore, the following steps are performed: injecting a hydrocarbon displacement fluid and measuring parameters relevant for inflow profiling, on the basis thereof, determining an actual inflow profile (P a) over the length of the wellbore, comparing the determined actual inflow profile (Pa) with a preferred inflow profile (Pp) over the length of the wellbore, estimating, on the basis of the difference between the actual inflow profile (Pa) and the preferred inflow profile (Pp), a modified perforation pattern for the liner, determining how the original perforation pattern of the liner may be adapted to form said modified perforation pattern for the liner, and adapting the perforation pattern of the liner accordingly.
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公开(公告)号：US11560683B2
公开(公告)日：2023-01-24
申请号：US15771665
申请日：2016-10-31
摘要： The present invention relates in some embodiments to a bottom supported drilling unit having two drilling stations for independently drilling (or otherwise working on) two wells simultaneously from a cantilever.
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公开(公告)号：US20200248544A1
公开(公告)日：2020-08-06
申请号：US16482438
申请日：2018-01-09
发明人： Carsten Busk
IPC分类号： E21B43/267 , E21B34/06 , E21B33/14 , E21B33/06 , E21B33/08 , E21B43/14 , E21B23/01 , E21B43/11 , E21B37/00
摘要： A method of creating a well bore includes providing a bore liner in a section of a well bore extending through a formation and providing the liner with at least one frac sleeve. A frac bottom hole assembly (BHA) is mounted on a string of jointed pipe, and the BHA is run into the well bore through a blowout preventer (BOP). The BHA is located adjacent the sleeve. A seal on the BOP is activated to engage the jointed pipe. The BHA is activated to engage the frac sleeve. The BHA is then translated to open a port in the frac sleeve. A surface pump then delivers fracturing fluid through the port into the formation surrounding the liner. After stopping the flow of fluid, the BHA is translated to close the port in the frac sleeve.
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公开(公告)号：US20200063535A1
公开(公告)日：2020-02-27
申请号：US16466218
申请日：2017-11-01
摘要： A method of creating a horizontal wellbore section comprises drilling the section in at least two stages. The method comprises drilling a first horizontal bore section. The first horizontal bore section is then provided with a first liner having a wall including initially-closed flow ports. The first liner isolates the wall of the first bore section. A second horizontal bore section is then drilled beyond the first horizontal bore section. The second horizontal bore section is provided with a second liner. Stimulation fluid is then directed into the first and second liners so that the stimulation fluid passes through the wall of the second liner to stimulate the second horizontal bore section. The flow ports in the wall of the first liner are then opened so that the stimulation fluid passes through the wall of the first liner to stimulate the first horizontal bore section.
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公开(公告)号：US10344557B2
公开(公告)日：2019-07-09
申请号：US15301635
申请日：2015-03-03
IPC分类号： E21B33/138 , E21B43/25 , E21B43/26 , E21B17/18 , E21B33/124 , E21B43/11 , E21B47/06
摘要： In a method of sealing a fracture (1) in a formation (2) surrounding a wellbore provided with a non-cemented perforated liner (4), a placement tool (6) is introduced into the liner, and a first and second annular flow barrier (8, 9) create an upstream (10), an intermediate (11) and a downstream section (12). A cross flow shunt tube (13) connects the upstream section and the downstream section, and a sealing fluid outlet (14) is arranged in the intermediate section. A placement fluid is caused to flow into the fracture and controlled to obtain a desired fluid flow in an annular space between the liner and the formation that is directed in downstream direction at a position upstream the fracture and in the upstream direction at a position downstream the fracture. When said desired flow is obtained, sealing fluid is ejected from the sealing fluid outlet. A sealing system is furthermore disclosed.
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公开(公告)号：US10260333B2
公开(公告)日：2019-04-16
申请号：US15022462
申请日：2014-09-17
摘要： The invention relates to a system and a method for determining flow patterns of fluid in a production well. Especially, the invention relates to a method of determining flow patterns between and into oil production wells drilled in the Earth when flow is improved by water flooding. The system comprises a canister (1) said canister being located in said formation at a subterranean location within or proximate the wellbore, the canister being provided with an exit opening (5), a traceable component (4) being placed in the canister and able to pass through the exit opening and a release mechanism capable of releasing the traceable component when triggered by a triggering mechanism such that the traceable component enters the fluid flowing through the well through the exit opening and is present in the fluid flow in the wellbore. The method comprising the steps of providing a canister in said formation at a subterranean location within or proximate the wellbore said canister holding a traceable component and being provided with an exit opening and monitoring the fluid flow from the wellbore at a location remote from said canister for the presence of traceable component.
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公开(公告)号：US10246992B2
公开(公告)日：2019-04-02
申请号：US15025841
申请日：2014-09-24
摘要： A method and a system of analyzing multiphase fluid flow in at least one well or pipeline is provided, the method comprises characterizing slug flow in the multiphase fluid flow by receiving a plurality of well pressure data from the at least one well, processing the plurality of well pressure data to obtain a time-varying slug amplitude and/or a time-varying slug period for slugs in the slug flow, analyzing the slug amplitudes and/or the slug periods over a period of time to thereby determine a measure of well performance. Also an oil field monitoring system for an oil field comprising a plurality of wells is provided. Each well has a pressure gauge installed to measure a well pressure and is connected to a multiphase fluid flow analyzing system. An oil field unit receives the measure of well performance from the multiphase fluid flow analyzing system, and output the measures of well performance for each of the plurality of wells.
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