An apparatus for controlling the flow of a fluid includes a LP fluid inlet (18) and a LP fluid outlet (9) connected to a flare/vent system. A LP flow line (20) connects the LP fluid inlet (18) to the LP inlet 6a of a jet pump (6). A supply of HP fluid is connected to jet pump inlet (6b), and a MP line (8) is connected to jet pump outlet (6c). A control unit (28) is configured to control operation of first and second LP flow control valves (4,3) according to signals received from a flow meter (12), so that LP gas is diverted from the flare system to the LP inlet (6a) of the jet pump for pressurisation.
F23G 7/08 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks
A system and method for boosting the pressure of multi-phase fluids to enable handling of slug flow from oil and gas wells. The system is arranged to include a cyclonic separator (2) having outlets of a first gas-rich line (4) and a first liquid-rich line (5), a gravitational separator (6) having outlets of a second gas-rich line (9) and a second liquid-rich line (8), downstream of the cyclonic separator (2). There is also a gas compressor (14) for boosting pressure in the second gas-rich line and a liquid pump (19) for boosting pressure in the second liquid-rich line. The boosted gas and liquid is received by a commingler 16 downstream which outputs a combined fluid flow. Control valves (10, 11, 12, 22, 23) are provided at various stages of the system that are activated in response to slug flow detected by flow regime detectors (3) upstream of the cyclonic separator. The system is, overall, able to be much smaller than a convention slug catcher system and, in fact, the gravitational separator (6) may be comprised of a pipe section the same or similar to the inlet from the well.
The apparatus consists of modular stages (A, B, C) arranged in series, each stage including a main chamber (2) and a nozzle opening (5). In practice, a fluid passing through the opening (5) is subject to a pressure drop as it enters a main chamber of a subsequent stage in the series. This multi-stage pressure drop avoids a sharp drop in temperature, as would occur if the total pressure drop was achieved in one stage, which may cause hydrates to form in an oil/gas pipeline.
A system for improving oil-water separator performance wherein an electrostatic coalescer (15) is located upstream of a cyclonic oil-water separator (16). Preferably, the electrostatic coalescer is able to be bypassed and/or is located in parallel with a mechanical coalescer (17). In the case of parallel arrangement, selection of the flow path route between the electrostatic coalescer (15) and mechanical coalescer (17) is determined by use of an upstream phase detector (18).
A fluid separator comprises a gravity separation chamber (4) having an inlet duct (2) for a mixture of gas and liquid, and a cyclonic inlet diverter (D) located within the gravity separation chamber. The cyclonic inlet diverter (D) includes a cyclonic inlet chamber (18) connected to receive a mixture of gas and liquid from the inlet duct (2), a cyclonic separation chamber (20), a gas outlet (22) at an upper end of the cyclonic separation chamber and a liquid outlet (24) at a lower end of the cyclonic separation chamber. The cyclonic inlet chamber (18) has an involute configuration.
B01D 45/02 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream
An improved gas lift system for use in oil production from a well bore (11) utilising a gas lift injection (10) system of the known type and further including a surface jet pump (16) downstream of the well head (13) for reducing the flowing well head pressure and capable of discharging produced fluid (14) at a pressure required by a downstream production system.
A pump assembly comprises a housing (50) and a plurality of jet pumps (52) arranged within the housing. The housing (50) includes a HP inlet (54), a LP inlet (58) and an outlet (56) and is divided internally into a HP zone (62), a LP zone (64) and an outlet zone (66). Each jet pump (52) includes a nozzle assembly (80), a mixing tube (82) and a diffuser (84), and has a HP inlet (74) located in the HP zone, a LP inlet (78) located in the LP zone, and an outlet (76) located in the outlet zone.
F04F 5/10 - Jet pumps, i.e. devices in which fluid 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
An apparatus for separating a fluid mixture includes a uniaxial cyclonic separator (2) having a separation chamber (18) for separating the fluid mixture by cyclonic action into a first fluid and a second fluid. An inlet (16) is located at a first end of the separation chamber (18) for receiving a fluid mixture, while a first outlet (22) for the first fluid and a second outlet (26) for the second fluid are located at a second end of the separation chamber. A gas injection means (12) is provided for injecting a gas into the fluid mixture to aid separation within the separation chamber (18). The gas injection may also be through an annular chamber surrounding the separator chamber (18). The gas in this case is introduced through a porous medium 130 via a gas supply line 136.
B04C 7/00 - Apparatus not provided for in group , or Multiple arrangements not provided for in one of the groups , , or Combinations of apparatus covered by two or more of the groups , , or
B04C 9/00 - Combinations with other devices, e.g. fans
A sand separation system includes a first separator (2) that is constructed and arranged to receive a first mixture of gas, sand and liquid, and separate gas at least partially from the first mixture to leave a second mixture of sand and liquid. A second separator (22) comprising a uniaxial cyclonic separator is constructed and arranged to receive the second mixture and separate liquid at least partially from the second mixture to leave a third mixture of sand and liquid. A third separator (34) comprising a gravity separator is constructed and arranged to receive the third mixture and separate liquid at least partially from the third mixture.
A separation system for separating a fluid mixture includes a uniaxial cyclonic separator (2) having a first inlet (16) for receiving a fluid mixture, a separation chamber (18) for separating the fluid mixture by cyclonic action into a dense first fluid and a less dense second fluid, a first outlet (22) for the first fluid and a second outlet (26) for the second fluid. The system further includes a reverse flow cyclonic separator (32) having a second inlet (30) for receiving the first fluid from the first outlet (22), a separation chamber for separating the first fluid by cyclonic action into a dense third fluid and a less dense fourth fluid, a third outlet (34) for the third fluid and a fourth outlet (36) for the fourth fluid.
B04C 7/00 - Apparatus not provided for in group , or Multiple arrangements not provided for in one of the groups , , or Combinations of apparatus covered by two or more of the groups , , or
11.
APPARATUS FOR AND METHOD OF SEPARATING MULTI-PHASE FLUIDS
An apparatus for separating multi-phase fluids, comprising a cyclonic separator (40) having an inlet (42) for multi-phase fluids, a cyclonic separation chamber, a first outlet (44) for relatively high density fluids and a second outlet (46) for relatively low density fluids, and a secondary separator (52) comprising a separation vessel in which fluids are separated primarily by gravity, a first inlet (96) connected to receive the relatively high density fluids, a second inlet (94) connected to receive the relatively low density fluids, a first outlet (54) in the upper part of the vessel for a separated gas phase and a second outlet (56) in the lower part of the separation vessel for a separated liquid phase.
A cyclonic separator for separating fluids comprises an inlet chamber (6) having means for inducing fluids flowing through the chamber to swirl around an axis, a cyclonic separation chamber (10) connected to receive fluids from the inlet chamber, and an outlet chamber (8) connected to receive fluids from the cyclonic separation chamber. The outlet chamber (8) has a tangential outlet (22) for relatively dense fluids and an axial outlet (24) for less dense fluids. The separation chamber is elongate and has a length L and an inlet diameter D, where L/D is in the range 1 to 10.
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