Abstract: A method of regulating at least one parameter of a separator for use in a hydrocarbon production facility is described. The method comprises receiving at least one first temperature value and/or at least one first pressure value from at least one upstream component, determining a target value for each of the at least one parameter for the separator based on the received at least one first temperature value and/or the at least one first pressure value and regulating the at least one parameter of the separator based on the respective target value. Further, a corresponding apparatus is described.

Abstract: A method for stimulation of a well in a material formation which includes a workflow for the design of hole-size distribution in the liner of a LEL liner system is modelled, wherein a solution strategy for providing an initial estimate of the number of holes per segment honours the acid coverage per segment and the drop in pressure (dp) across the last one of the holes, where the initial estimate can be found from the relationship between interstitial velocity, pump rate, and total cross-sectional hole area for a particular discharge coefficient and liner configuration.

Abstract: A controller for controlling apparatus for performing a wellbore intervention or process, a corresponding processing device and method for simulating and/or controlling consecutive flow of a plurality of fluids in a wellbore of arbitrary geometry, the method involving forming, using or providing a model or simulation of the wellbore, the model or simulation representing the wellbore as a plurality of segments or portions; determining and/or providing one or more friction pressure drop components associated with at least one portion or segment of the wellbore for the plurality of fluids; and calculating pressure drop values for at least one segment or portion and/or between segments or portions using the one or more friction pressure drop components. Preferably, the method involves determining a pressure response during acid stimulation.

Abstract: Use fresh water or water with sufficiently reduced salinity to trigger burst of bacterial cell wall due to osmotic pressure gradient. Combine the freshwater with conventional biocide treatment and pigging to increase the likelihood of killing the bacteria responsible for reservoir souring.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method for reducing permeability in a first region of a formation, including injecting a first composition in the first region from a first location near and/or adjacent the first region; and injecting a second composition in the first region from a second location near and/or adjacent the first region, wherein the first composition and the second composition are configured to react so as to form a reaction product capable of reducing the permeability in at least a portion of the first region.

Abstract: A method of depleting the bacterial content in a water source is provided. The method involves depleting the bacterial content in a water source for a water flooding process, said method comprising contacting a water source with a superparamagnetic or paramagnetic nanoparticle; complexing the bacteria with the particle; and removing the bacteria-particle complex by applying a magnetic field so as to provide a water source with depleted bacterial 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.

Abstract: A method of treating crude oil comprising depleting the content of aromatic hydrocarbons comprising contacting the crude oil with super-paramagnetic or paramagnetic nanoparticles comprising chemical functional groups. The method increases the API gravity of crude oil and reduces the viscosity of said oil. Oil can be depleted in its content of sulphur-containing aromatics using functionalized nanoparticles.

Abstract: 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.

Abstract: A method of depleting the bacterial content in a water source is provided. The method involves depleting the bacterial content in a water source for a water flooding process, said method comprising contacting a water source with a superparamagnetic or paramagnetic nanoparticle; complexing the bacteria with the particle; and removing the bacteria-particle complex by applying a magnetic field so as to provide a water source with depleted bacterial 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.

Abstract: A method of treating crude oil comprising depleting the content of aromatic hydrocarbons comprising contacting the crude oil with super-paramagnetic or paramagnetic nanoparticles comprising chemical functional groups. The method increases the API gravity of crude oil and reduces the viscosity of said oil. Oil can be depleted in its content of sulphur-containing aromatics using functionalized nanoparticles.

Abstract: 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.

Abstract: A method and a system of analysing multiphase fluid flow in at least one well or pipeline is provided, the method comprises characterising 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, analysing 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 analysing system. An oil field unit receives the measure of well performance from the multiphase fluid flow Production Manifold analysing system, and output the measures of well performance for each of the plurality of wells.

Abstract: A controller for controlling apparatus for performing a wellbore intervention or process, a corresponding processing device and method for simulating and/or controlling consecutive flow of a plurality of fluids in a wellbore of arbitrary geometry, the method involving forming, using or providing a model or simulation of the wellbore, the model or simulation representing the wellbore as a plurality of segments or portions; determining and/or providing one or more friction pressure drop components associated with at least one portion or segment of the wellbore for the plurality of fluids; and calculating pressure drop values for at least one segment or portion and/or between segments or portions using the one or more friction pressure drop components. Preferably, the method involves determining a pressure response during acid stimulation.

Abstract: Use fresh water or water with sufficiently reduced salinity to trigger burst of bacterial cell wall due to osmotic pressure gradient. Combine the freshwater with conventional biocide treatment and pigging to increase the likelihood of killing the bacteria responsible for reservoir souring.

Abstract: The present invention relates to an improved method of enhancing oil recovery by use of conformance control. More particularly, the method of conformance control involves the provision of a plugging material which is designed to be formed within an area of high-permeability in preference to an area of low permeability in order that subsequent water, gas or chemical flooding can enhance oil recovery from the area/region of low permeability.

Abstract: A method for reducing permeability in a first region 12 of a formation 10, comprises injecting a first composition in the first region 12 from a first location 30 near or and/or adjacent the first region 12; and injecting a second composition in the first region 12 from a second location 20 near or and/or adjacent the first region 12; wherein the first composition and the second composition are configured to react so as to form a reaction product 60 capable of reducing the permeability in at least a portion of the first region 12.

Abstract: A non-cemented liner (20) is introduced into an injection bore (21), steam is fed into the liner at a first bore part (24) and injected into the reservoir through holes (22, 23) in the liner distributed so that the total hole area per length unit of the liner is greater at a second part (25) than at the first part of the bore. Steam enters an annular space between liner and bore only through holes near first part of the bore and subsequently gradually travels inside the liner in direction of second bore part and gradually enters the annular space through holes nearer and nearer second bore part. Gradually liquid is displaced away from an upper liner part and an upper part of the annular space, so that steam contacts the bore along substantially the entire length of the liner in the upper part of the annular space.