WO1995007414A1 - System for pumping liquids using a jet pump - Google Patents

System for pumping liquids using a jet pump Download PDF

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Publication number
WO1995007414A1
WO1995007414A1 PCT/GB1994/001937 GB9401937W WO9507414A1 WO 1995007414 A1 WO1995007414 A1 WO 1995007414A1 GB 9401937 W GB9401937 W GB 9401937W WO 9507414 A1 WO9507414 A1 WO 9507414A1
Authority
WO
WIPO (PCT)
Prior art keywords
jet pump
fluid
gas
outlet
pressure inlet
Prior art date
Application number
PCT/GB1994/001937
Other languages
French (fr)
Other versions
WO1995007414B1 (en
Inventor
Mir Mahmood Sarshar
Original Assignee
B.H.R. Group Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B.H.R. Group Limited filed Critical B.H.R. Group Limited
Priority to GB9604504A priority Critical patent/GB2296045B/en
Priority to EP94925562A priority patent/EP0717818B1/en
Priority to AU75427/94A priority patent/AU687862B2/en
Priority to JP7508529A priority patent/JPH09502779A/en
Priority to DK94925562T priority patent/DK0717818T3/en
Priority to BR9407387A priority patent/BR9407387A/en
Priority to DE69410619T priority patent/DE69410619T2/en
Publication of WO1995007414A1 publication Critical patent/WO1995007414A1/en
Publication of WO1995007414B1 publication Critical patent/WO1995007414B1/en
Priority to NO19960886A priority patent/NO307758B1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/34—Arrangements for separating materials produced by the well
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/49—Mixing systems, i.e. flow charts or diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3132—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying

Definitions

  • Jet pumps operate by introducing a high pressure or primary fluid through a nozzle and allowing the low pressure or secondary fluid to be entrained into the flow stream. Due to the momentum exchange between the two fluids the resulting pressure of the combined stream will be increased to well above the pressure of the secondary fluid.
  • An application of mingling liquids is in fuel extraction. Gas or liquid or a mixture of the two phases is extracted from a fuel field. Many fields have a significant variation in production characteristics because of reservoir fragmentation and presence of different production zones. This often results in wells having different flowing wellhead pressures.
  • Jet pumps can be used for such mingling and work satisfactorily when the primary and secondary fluids are both liquids, or both gases.
  • jet pumps can also be designed to operate satisfactorily when the primary fluid is pure liquid and the secondary fluid consists of a liquid/gas mixture.
  • jet pump operation cannot be achieved when there is a wide variation in the phase proportions in the primary fluid.
  • the present invention is aimed at overcoming this problem by providing a co-mingling device in which the jet pump is provided with a phase separator in the primary line, and utilising the liquid phase obtained from the separator as the primary fluid of the jet pump.
  • a bypass arrangement may be provided for the separated gas phase to be mixed back into the fluids from the outlet of the jet pump.
  • Figure 1 is a diagrammatic representation of a co- mingling device.
  • Figure 2 is a diagram of the device of Figure 1
  • Figure 3 is a diagram of a similiar co-mingling system, incorporating two jet pumps.
  • Figure 4 shows a co-mingling system which is also a separating system, co-mingling the separated fluids, and
  • Figure 5 is an elaboration of Figure 4.
  • Sources of high and low pressure fluids for the jet pump are obtained in this example from underground oil wells, a first source of fluid 11 under low pressure and a second source of fluid 12 under high pressure. Both fluids are mixtures of gas and liquid. The fluid from the high pressure oil well is used to pump fluid from the low pressure well.
  • the fluid mixture under low pressure is supplied to the low pressure inlet 14G of a conventional jet pump 14.
  • the high pressure fluid passes first to an in-line separator 15, in which the lighter phase tends to return to the line of entry, and the heavier fluids are deflected from that line. This is usually achieved by imparting a swirl to the incoming fluid, the centrifugal force acting to separate the different phases.
  • the gas rich fluid tends to collect along the axis of the swirl, in line with the incoming fluid and the heavier phase is collected from an off-axis outlet.
  • the liquid phase (or liquid rich fluid) 15L separated from the high pressure fluid is supplied as primary fluid to the high pressure inlet 14L of the jet pump 14.
  • the gas-rich phase 15G separated from the high pressure fluid passes through a bypass conduit 24, and the conduit may be provided with a device for controlling the flow of the gas in the bypass conduit; the device may be an orifice plate, a nozzle (as illustrated at 26) at the end of the bypass conduit 24 or a controllable valve, which is useful when inlet pressures may vary during operation.
  • the jet pump 14 Since the primary fluid reaching the high pressure inlet 14L of the jet pump is substantially all liquid phase, the jet pump 14 operates satisfactorily to draw low pressure fluid from the first source thr * ⁇ gh the pump and the mixture of liquids passes from the jet pump outlet 27, into a mixing device 28 where it is mixed with the gas stream from the separator 15.
  • the mixing device 28 is housed in an extension of the outlet pipe 31 of the jet pump; the diameter of the extension increases in the region of the entry of the gas bypass conduit outlet.
  • the role of the mixing device is to allow efficient entry of the bypass gas into the fluid leaving the jet pump. Since the pressure of the two fluids may be comparable at this point the mixing device must reduce the effect which the high pressure bypass gas may have in restricting the flow out of the jet pump.
  • bypass gas is problably at a higher pressure than the fluids in the outlet of the jet pump and so it is preferable for the outlet of the bypass conduit to form what can be seen as another jet pump in the outlet conduit from the main jet pump, thus assisting the flow of fluids from the main jet pump, recovering momentum lost from the high pressure oil stream at the phase separator.
  • bypass gases should be introduced in a streamline manner, such as by directing the gases axially along the outlet conduit, to prevent any disruption of the flow from the outlet of the main jet pump.
  • the effect of the outlet fluids from the main jet pump on the flow of gas in the bypass conduit controls the operation of the phase separator; its back pressure discourages any carry-over of liquid slugs through the bypass conduit; it is thus a passive controller.
  • the gas from the separator 15 need not be mixed back with the output fluids from the jet pump.
  • the gas may for example be fed to a flare or a fuel system.
  • FIG 3 there are two jet pumps 31, 32 in parallel and two phase separators 41, 42, one in the supply from each well.
  • the first jet pump 31 receives liquid at each of its inputs, the liquid phase output 41L from the high pressure well separator 41 as its primary fluid and the liquid phase output 42L from the low pressure well separator 42 as its secondary input, co-mingling them to produce a liquid supply 43L to the single mixing device 43.
  • the second pump 32 receives gas-rich fluid at each of its inputs, the gas phase output 41G from the high pressure well separator 41 as its primary fluid and the gas phase output 42G from the low pressure well separator 42 as its secondary fluid, comingling the gases to produce a gas supply 43G to a single mixing device 43. Jet pumps receiving the same phase for primary and secondary fluids have improved performance, as was pointed out in the introduction to the specification.
  • the jet pump 14 in Figures 1 and 2 has a liquid enriched supply of driving fluid, but the supply from the low pressure well is unseparated and so may contain unsatisfactory amount of gas.
  • both jet pumps 31, 32 have phase separated supplies and so do not have to deal with such a wide range of phase proportions; they can therefore be much more closely designed and so should work more efficiently.
  • the high pressure inlet of the jet pump prefferably supplied from the liquid rich output of the 5 phase separator boosted in pressure for example by a pump and for the low pressure input of the jet pump to be supplied from the gas rich outlet of the phase separator.
  • the jet pump there is only one phase separator 51 and one manifold inlet 52 from an oil field.
  • the 10 53 receives fluid at 53L from the liquid rich outlet 51L of the separator 51 after boosting in pressure by a pump 55.
  • the gas rich outlet 51G of the separator is not boosted and so is at relatively low pressure at the low pressure inlet 53G to the jet pump.
  • the jet pump has a narrow range of
  • Figure 4 shows the arrangement of Figure 3 with the output from a second manifold 61 of fluids at higher pressures.
  • the second manifold is connected to the output 56 of the jet pump 5£ by a further co-mingler 62, which may be another jet pump or a general mixing device, as described above.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Cyclones (AREA)

Abstract

A co-mingling device comprises a jet pump (14) and a phase separator (15). The jet pump has a primary fluid which is a driving fluid and a secondary fluid which is the driven fluid. It is particularly important that the primary fluid is consistent in phase, and to avoid undue phase variations, the present invention includes the phase separator (15) in the primary fluid supply, directing liquid-rich fluid (15L) to the primary fluid input (14L) of the jet pump. The gas-rich fluid 15G can bypass the jet pump in (24) and be mingled at (28) with the output of the jet pump if desired.

Description

SYSTEMFORPUMPINGLIQUIDSUSINGAJETPUMP
Jet pumps operate by introducing a high pressure or primary fluid through a nozzle and allowing the low pressure or secondary fluid to be entrained into the flow stream. Due to the momentum exchange between the two fluids the resulting pressure of the combined stream will be increased to well above the pressure of the secondary fluid.
An application of mingling liquids is in fuel extraction. Gas or liquid or a mixture of the two phases is extracted from a fuel field. Many fields have a significant variation in production characteristics because of reservoir fragmentation and presence of different production zones. This often results in wells having different flowing wellhead pressures.
Conventional mingling of the products from such wells results in the need to choke the production from the high pressure wells and restricts the production from the low pressure wells. This is costly and inefficient and does not result in optimum recovery.
Jet pumps can be used for such mingling and work satisfactorily when the primary and secondary fluids are both liquids, or both gases. In addition, jet pumps can also be designed to operate satisfactorily when the primary fluid is pure liquid and the secondary fluid consists of a liquid/gas mixture. However satisfactory, jet pump operation cannot be achieved when there is a wide variation in the phase proportions in the primary fluid.
The present invention is aimed at overcoming this problem by providing a co-mingling device in which the jet pump is provided with a phase separator in the primary line, and utilising the liquid phase obtained from the separator as the primary fluid of the jet pump. A bypass arrangement may be provided for the separated gas phase to be mixed back into the fluids from the outlet of the jet pump.
Examples of the invention will now be described with reference to the accompanying drawings in which:-
Figure 1 is a diagrammatic representation of a co- mingling device.
Figure 2 is a diagram of the device of Figure 1, Figure 3 is a diagram of a similiar co-mingling system, incorporating two jet pumps.
Figure 4 shows a co-mingling system which is also a separating system, co-mingling the separated fluids, and
Figure 5 is an elaboration of Figure 4.
In Figures 1 and 2, fluids from separate sources are co-mingled in a jet pump 14. Sources of high and low pressure fluids for the jet pump are obtained in this example from underground oil wells, a first source of fluid 11 under low pressure and a second source of fluid 12 under high pressure. Both fluids are mixtures of gas and liquid. The fluid from the high pressure oil well is used to pump fluid from the low pressure well.
The fluid mixture under low pressure is supplied to the low pressure inlet 14G of a conventional jet pump 14. The high pressure fluid passes first to an in-line separator 15, in which the lighter phase tends to return to the line of entry, and the heavier fluids are deflected from that line. This is usually achieved by imparting a swirl to the incoming fluid, the centrifugal force acting to separate the different phases. The gas rich fluid tends to collect along the axis of the swirl, in line with the incoming fluid and the heavier phase is collected from an off-axis outlet. The liquid phase (or liquid rich fluid) 15L separated from the high pressure fluid is supplied as primary fluid to the high pressure inlet 14L of the jet pump 14. The gas-rich phase 15G separated from the high pressure fluid passes through a bypass conduit 24, and the conduit may be provided with a device for controlling the flow of the gas in the bypass conduit; the device may be an orifice plate, a nozzle (as illustrated at 26) at the end of the bypass conduit 24 or a controllable valve, which is useful when inlet pressures may vary during operation.
Since the primary fluid reaching the high pressure inlet 14L of the jet pump is substantially all liquid phase, the jet pump 14 operates satisfactorily to draw low pressure fluid from the first source thr* αgh the pump and the mixture of liquids passes from the jet pump outlet 27, into a mixing device 28 where it is mixed with the gas stream from the separator 15.
It will be noted that the mixing device 28 is housed in an extension of the outlet pipe 31 of the jet pump; the diameter of the extension increases in the region of the entry of the gas bypass conduit outlet. The role of the mixing device is to allow efficient entry of the bypass gas into the fluid leaving the jet pump. Since the pressure of the two fluids may be comparable at this point the mixing device must reduce the effect which the high pressure bypass gas may have in restricting the flow out of the jet pump. In fact the bypass gas is problably at a higher pressure than the fluids in the outlet of the jet pump and so it is preferable for the outlet of the bypass conduit to form what can be seen as another jet pump in the outlet conduit from the main jet pump, thus assisting the flow of fluids from the main jet pump, recovering momentum lost from the high pressure oil stream at the phase separator. Certainly the bypass gases should be introduced in a streamline manner, such as by directing the gases axially along the outlet conduit, to prevent any disruption of the flow from the outlet of the main jet pump. The effect of the outlet fluids from the main jet pump on the flow of gas in the bypass conduit controls the operation of the phase separator; its back pressure discourages any carry-over of liquid slugs through the bypass conduit; it is thus a passive controller.
The gas from the separator 15 need not be mixed back with the output fluids from the jet pump. The gas may for example be fed to a flare or a fuel system.
In Figure 3 there are two jet pumps 31, 32 in parallel and two phase separators 41, 42, one in the supply from each well. The first jet pump 31 receives liquid at each of its inputs, the liquid phase output 41L from the high pressure well separator 41 as its primary fluid and the liquid phase output 42L from the low pressure well separator 42 as its secondary input, co-mingling them to produce a liquid supply 43L to the single mixing device 43. The second pump 32 receives gas-rich fluid at each of its inputs, the gas phase output 41G from the high pressure well separator 41 as its primary fluid and the gas phase output 42G from the low pressure well separator 42 as its secondary fluid, comingling the gases to produce a gas supply 43G to a single mixing device 43. Jet pumps receiving the same phase for primary and secondary fluids have improved performance, as was pointed out in the introduction to the specification.
The jet pump 14 in Figures 1 and 2 has a liquid enriched supply of driving fluid, but the supply from the low pressure well is unseparated and so may contain unsatisfactory amount of gas. In Figure 3 both jet pumps 31, 32 have phase separated supplies and so do not have to deal with such a wide range of phase proportions; they can therefore be much more closely designed and so should work more efficiently.
It would be possible for the high pressure inlet of the jet pump to be supplied from the liquid rich output of the 5 phase separator boosted in pressure for example by a pump and for the low pressure input of the jet pump to be supplied from the gas rich outlet of the phase separator. As shown in Figure 4, there is only one phase separator 51 and one manifold inlet 52 from an oil field. The jet pump
10 53 receives fluid at 53L from the liquid rich outlet 51L of the separator 51 after boosting in pressure by a pump 55. The gas rich outlet 51G of the separator is not boosted and so is at relatively low pressure at the low pressure inlet 53G to the jet pump. The jet pump has a narrow range of
15 phase proportions to deal with as its primary fluid and operates efficiently to co-mingle the gas and liquid phases from the oil field.
Figure 4 shows the arrangement of Figure 3 with the output from a second manifold 61 of fluids at higher pressures. 0 The second manifold is connected to the output 56 of the jet pump 5£ by a further co-mingler 62, which may be another jet pump or a general mixing device, as described above.

Claims

1. A co-mingling device comprising a jet pump (14, 32, 53) having a high pressure inlet (14L, 32L, 53L), a low pressure inlet (14G, 32G, 53G) and a main outlet (27, 43L, 56), characterised by a phase separator (15, 42, 51) having a liquid-rich outlet (15L, 42L, 51L) connected to said high pressure inlet.
2. A device as claimed in claim 1 wherein the phase separator has a gas-rich outlet (14G, 32G, 53L) which is connected to said main outlet.
3. A device as claimed in claim 2 wherein the gas-rich outlet is connected to said main outlet by means of a nozzle (26) directed along the axis of the main outlet.
4. A device as claimed in claim 1 wherein the phase separator has a gas rich outlet (51G) which is connected to said low pressure inlet (53G), means (55) being provided between the liquid rich outlet (51L) and the high pressure inlet (53L) to increase the pressure of fluid passing therethrough.
5. A co-mingling device as claimed in claim 1 where said jet pump is a first jet pump (31) having a high pressure inlet, a low pressure inlet and a main outlet, and said phase separator is a first phase separator (41) having a liquid-rich outlet connected to said high pressure inlet of the first jet pump, the device comprising a second jet pump (32) having a high pressure inlet, a low pressure inlet and a main outlet, and a second phase separator (42) having a liquid-rich outlet connected to said low pressure inlet of the first jet pump, the first phase separator having a gas rich outlet connected to the high pressure inlet of the second jet pump and the second gas separator having a gas rich outlet connected to the low pressure inlet of the second jet pump.
6. A device as claimed in claim 5 comprising means (43) to mix the outlets of the two jet pumps (31, 32).
7. A device as claimed in any one of claims 1 to 6 wherein the or each phase separator is an in-line separator, the gas-rich outlet (15G, 41G, 51G) being aligned with the inlet of the phase separator.
PCT/GB1994/001937 1993-09-06 1994-09-06 System for pumping liquids using a jet pump WO1995007414A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB9604504A GB2296045B (en) 1993-09-06 1994-09-06 System for pumping liquids using a jet pump
EP94925562A EP0717818B1 (en) 1993-09-06 1994-09-06 System for pumping liquids using a jet pump
AU75427/94A AU687862B2 (en) 1993-09-06 1994-09-06 System for pumping liquids using a jet pump
JP7508529A JPH09502779A (en) 1993-09-06 1994-09-06 System for pumping liquid with a jet pump
DK94925562T DK0717818T3 (en) 1993-09-06 1994-09-06 System for pumping liquids using a jet pump
BR9407387A BR9407387A (en) 1993-09-06 1994-09-06 System for pumping liquids using a jet pump
DE69410619T DE69410619T2 (en) 1993-09-06 1994-09-06 SYSTEM FOR PUMPING LIQUIDS USING A JET PUMP
NO19960886A NO307758B1 (en) 1993-09-06 1996-03-05 System for pumping fluid with a jet pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9318419.0 1993-09-06
GB939318419A GB9318419D0 (en) 1993-09-06 1993-09-06 Pumping liquids using a jet pump

Publications (2)

Publication Number Publication Date
WO1995007414A1 true WO1995007414A1 (en) 1995-03-16
WO1995007414B1 WO1995007414B1 (en) 1995-04-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1994/001937 WO1995007414A1 (en) 1993-09-06 1994-09-06 System for pumping liquids using a jet pump

Country Status (11)

Country Link
EP (1) EP0717818B1 (en)
JP (1) JPH09502779A (en)
AT (1) ATE166703T1 (en)
AU (1) AU687862B2 (en)
BR (1) BR9407387A (en)
DE (1) DE69410619T2 (en)
DK (1) DK0717818T3 (en)
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GB (2) GB9318419D0 (en)
NO (1) NO307758B1 (en)
WO (1) WO1995007414A1 (en)

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WO1998034009A1 (en) * 1997-01-31 1998-08-06 Elf Exploration Production Installation for pumping a two-phase liquid/gas effluent
WO2001065065A1 (en) * 2000-03-03 2001-09-07 Pancanadian Petroleum Limited Downhole separation of produced water in hydrocarbon wells, and simultaneous downhole injection of separated water and surface water
US6336504B1 (en) 2000-03-03 2002-01-08 Pancanadian Petroleum Limited Downhole separation and injection of produced water in naturally flowing or gas-lifted hydrocarbon wells
WO2002077412A1 (en) * 2001-03-27 2002-10-03 Conocophillips Company Passive low pressure flash gas compression system
GB2357103B (en) * 1998-07-06 2002-12-18 Atlantic Richfield Co Method and apparatus for commingling and producing fluids from multiple production reservoirs
US6539878B1 (en) 2000-08-29 2003-04-01 National Steel Car Limited Vehicle carrying rail road car with bridge plate assembly
WO2004083601A1 (en) * 2003-03-22 2004-09-30 Caltec Limited A system and process for pumping multiphase fluids
US6968788B1 (en) 2000-08-29 2005-11-29 National Steel Car Limited Vehicle carrying rail road car with deck access fittings
WO2006032850A1 (en) * 2004-09-21 2006-03-30 Caltec Limited Well start-up system and process
US7255047B1 (en) 2000-08-29 2007-08-14 National Steel Car Limited Vehicle carrying rail road car and bridge plate therefor
EP2336486A3 (en) * 2007-10-10 2011-10-26 Petróleo Brasileiro S.A. Petrobras Pumping module and system
WO2013124625A3 (en) * 2012-02-20 2014-04-10 Caltec Limited Improved gas lift system for oil production
US8747679B2 (en) 2008-01-22 2014-06-10 Caltec Limited Separation system and method for separating a fluid mixture with this separating system
US9073064B2 (en) 2008-07-14 2015-07-07 Caltec Limited Cyclonic separation system comprising gas injection means and method for separating a fluid mixture
GB2526820A (en) * 2014-06-03 2015-12-09 Caltec Ltd System and process for pumping fluids
CN110173471A (en) * 2019-07-02 2019-08-27 北京合利能科技有限公司 A kind of heat supply ballast pump

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KR101459888B1 (en) * 2013-03-28 2014-11-07 현대중공업 주식회사 Apparatus for Transferring Marine Resources of Offshore Plant
GB2536289A (en) 2015-03-13 2016-09-14 Caltec Ltd Oil/gas production apparatus

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GB2239676A (en) * 1989-11-10 1991-07-10 Bhr Group Ltd Pumping gas/liquid mixtures
GB2264147A (en) * 1992-02-12 1993-08-18 Peco Machine Shop & Inspection Multi-phase pumping arrangement

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GB2101216A (en) * 1981-06-26 1983-01-12 Plessey Co Plc A jet pump
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Cited By (25)

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Publication number Priority date Publication date Assignee Title
FR2759113A1 (en) * 1997-01-31 1998-08-07 Elf Aquitaine PUMPING SYSTEM FOR A LIQUID / GAS BIPHASIC EFFLUENT
WO1998034009A1 (en) * 1997-01-31 1998-08-06 Elf Exploration Production Installation for pumping a two-phase liquid/gas effluent
GB2357103B (en) * 1998-07-06 2002-12-18 Atlantic Richfield Co Method and apparatus for commingling and producing fluids from multiple production reservoirs
WO2001065065A1 (en) * 2000-03-03 2001-09-07 Pancanadian Petroleum Limited Downhole separation of produced water in hydrocarbon wells, and simultaneous downhole injection of separated water and surface water
US6336503B1 (en) 2000-03-03 2002-01-08 Pancanadian Petroleum Limited Downhole separation of produced water in hydrocarbon wells, and simultaneous downhole injection of separated water and surface water
US6336504B1 (en) 2000-03-03 2002-01-08 Pancanadian Petroleum Limited Downhole separation and injection of produced water in naturally flowing or gas-lifted hydrocarbon wells
US6968788B1 (en) 2000-08-29 2005-11-29 National Steel Car Limited Vehicle carrying rail road car with deck access fittings
US6539878B1 (en) 2000-08-29 2003-04-01 National Steel Car Limited Vehicle carrying rail road car with bridge plate assembly
US7255047B1 (en) 2000-08-29 2007-08-14 National Steel Car Limited Vehicle carrying rail road car and bridge plate therefor
WO2002077412A1 (en) * 2001-03-27 2002-10-03 Conocophillips Company Passive low pressure flash gas compression system
US6537349B2 (en) 2001-03-27 2003-03-25 Conoco, Inc. Passive low pressure flash gas compression system
EA005516B1 (en) * 2001-03-27 2005-02-24 Конокофиллипс Компани Passive low pressure flash gas compression system
GB2414280B (en) * 2003-03-22 2007-11-14 Caltec Ltd A system and process for pumping multiphase fluids
GB2414280A (en) * 2003-03-22 2005-11-23 Caltec Ltd A system and process for pumping multiphase fluids
WO2004083601A1 (en) * 2003-03-22 2004-09-30 Caltec Limited A system and process for pumping multiphase fluids
US8257055B2 (en) 2003-03-22 2012-09-04 Caltec Limited System and process for pumping multiphase fluids
WO2006032850A1 (en) * 2004-09-21 2006-03-30 Caltec Limited Well start-up system and process
GB2418213B (en) * 2004-09-21 2009-09-09 Caltec Ltd Well start-up system and process
EP2336486A3 (en) * 2007-10-10 2011-10-26 Petróleo Brasileiro S.A. Petrobras Pumping module and system
US8747679B2 (en) 2008-01-22 2014-06-10 Caltec Limited Separation system and method for separating a fluid mixture with this separating system
US9073064B2 (en) 2008-07-14 2015-07-07 Caltec Limited Cyclonic separation system comprising gas injection means and method for separating a fluid mixture
WO2013124625A3 (en) * 2012-02-20 2014-04-10 Caltec Limited Improved gas lift system for oil production
GB2526820A (en) * 2014-06-03 2015-12-09 Caltec Ltd System and process for pumping fluids
GB2526820B (en) * 2014-06-03 2020-07-29 Caltec Production Solutions Ltd System and process for pumping fluids
CN110173471A (en) * 2019-07-02 2019-08-27 北京合利能科技有限公司 A kind of heat supply ballast pump

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DK0717818T3 (en) 1999-02-15
GB9318419D0 (en) 1993-10-20
DE69410619T2 (en) 1998-12-03
NO960886D0 (en) 1996-03-05
AU7542794A (en) 1995-03-27
JPH09502779A (en) 1997-03-18
BR9407387A (en) 1996-10-29
GB2296045A (en) 1996-06-19
EP0717818B1 (en) 1998-05-27
DE69410619D1 (en) 1998-07-02
AU687862B2 (en) 1998-03-05
EP0717818A1 (en) 1996-06-26
ATE166703T1 (en) 1998-06-15
ES2117291T3 (en) 1998-08-01
NO307758B1 (en) 2000-05-22
NO960886L (en) 1996-03-05
GB9604504D0 (en) 1996-05-01
GB2296045B (en) 1996-11-20

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