A phase separation apparatus

Abstract

A phase separation apparatus, including a support structure and a vessel defining an internal chamber. The vessel including a rotatable portion mounted on 5 the support structure and a fixed wall mounted on the support structure. The rotatable portion having a first end and a second end. The fixed wall being configured to sealingly engage with the first end. The fixed wall having an aperture to receive a fluid supply line. The internal chamber is configured to receive fluid from the fluid supply line. 10 20 25 20 26 72 16 A pr 2 02 5 A B S T R A C T 2 0 2 5 2 0 2 6 7 2 1 6 2 0 2 5 A p r 1 / 5 Figure 1 40 10 86 84 88 100 90 94 34 32 110 70 22 20 80 1 / 5 10 88 80 86 84 90 32 94 34 40 100 70 22 20 110 Figure 1 20 25 20 26 72 16 A pr 2 02 5 2 0 2 5 2 0 2 6 7 2 1 6 A p r 2 0 2 5 1 0 1 8 6 3 2 3 4 1 0 0 2 2 1 1 0

Description

5                          FIELD OF INVENTION The present invention relates to a phase separation apparatus. The present invention has particular but not exclusive application for multi-phase separation of solid material from liquids in an oil and gas operation. The patent specification describes this use but it is by way of example only and the invention is not limited to 10 this use. BACKGROUND OF THE INVENTION The material extracted from coal seam gas wells, such as produced during well cleaning operations, is typically in the form of a fluid mixture of gases and liquids 15 with some entrained solid material. The gases typically include methane and air, the liquids typically include water, and the solid material can include fine silt, coarse sand, or coal fragments. Disadvantageously, the mixed fluids can cause particles within the mixture to break down during discharge. It is beneficial to separate the gases from the liquid 20 and solid components of the fluid mixture in order to maximise the extraction of useable products and to minimise emissions. Phase separation is a process commonly used in the oil and gas industry for this purpose. Phase separation processes include gravity separation (using separators), chemical treatments, and the use of advanced technologies like centrifuges and electrostatic coalescers. 25         A common apparatus used for phase separation is a flowback tank. A flowback tank is a vessel used in the flowback operations including well workover and fracking operations. The tank is typically rectangular in shape with a flat floor. A typically horizontal inlet pipe connects to either the top or the middle of the flowback tank. 30         A flowback tank separates multi-phase flow which includes fluid, solids and gas. When separated the gas is typically vented to atmosphere, and the solid material collect in bottom of the flowback tank along with the fluid. The fluid can then be pumped out to other storage tanks or trucked away. The solid material remains on the floor and are difficult to remove from the tank. 2025202672   16 Apr 2025 OBJECT OF THE INVENTION It is an object of the present invention to overcome or at least alleviate one or more of the above-mentioned problems with phase separation apparatuses and / or provide the consumer with a useful or commercial choice. 5 SUMMARY OF THE INVENTION In one aspect, the present invention broadly resides in a phase separation apparatus, including a support structure; and 10          a vessel defining an internal chamber, the vessel including a rotatable portion mounted on the support structure, the rotatable portion having a first end and a second end; and a fixed wall mounted on the support structure and configured to sealingly engage with the first end, the fixed wall having an aperture to receive a fluid supply 15 line, wherein the internal chamber is configured to receive fluid from the fluid supply line. Preferably, the rotatable portion has a rotational portion wall. Preferably, the rotatable portion is a substantially cylindrical drum. 20          Preferably, the rotatable portion is rotatable at a rotational speed of less than 3 rpm. More preferably, the rotatable portion is rotatable at a rotational speed of between 1 rpm and 2 rpm. In one embodiment, the fluid supply line is preferably a Blooey line. Preferably, the Blooey line has a diameter between 152mm to 204mm. 25          In another embodiment, the fluid supply line is preferably a choke line. Preferably, the choke line has a diameter between 76mm to 102mm. Preferably, the phase separation apparatus has a fluid diffusor configured to diffuse the fluid from the fluid supply line. Preferably, the fluid diffuser is positioned within the internal chamber. Preferably, the fluid diffuser is attached to the fixed wall. 30          In one embodiment the fluid diffusor is preferably a slotted pipe. In another embodiment the fluid diffusor is preferably an inlet device comprising a plurality of diffusing vanes. Preferably, the plurality of diffusing vanes dissipate the kinetic energy of the fluid as the fluid enters the internal chamber. 2025202672   16 Apr 2025 Preferably, the plurality of diffusing vanes provide centrifugal acceleration to promote separation of liquid components and gaseous components of the fluid. Preferably, the phase separation apparatus has an internal wall attached to the inside of the rotatable portion. 5          Preferably, the phase separation apparatus has a deflector attached to the fixed wall. In one embodiment, the deflector is preferably a deflector shroud. Preferably, the deflector shroud substantially envelopes the fluid diffusor and has a large opening through which the diffused fluid can flow. In another embodiment, the deflector is preferably a deflector plate. Preferably, the deflector is configured to 10 direct the fluid from the fluid supply line to one side of the internal wall. Preferably, the phase separation apparatus has a control system configured to control operation of the phase separation apparatus. Preferably, the control system configured to monitor the phase separation apparatus. Preferably, the control system is computerized and includes at least one programmable logic 15 controller (PLC). Preferably, the phase separation apparatus has a suction system. Preferably, the suction system is configured to remove the separated liquid from the internal chamber. Preferably, the suction system includes a pump and a suction line. Preferably, the suction line passes through the fixed wall. Preferably, a suction end 20 of the suction line is positioned within the internal chamber adjacent to the first end. Preferably, the suction end of the suction line is positioned within the internal chamber between the fixed wall and the internal wall. Preferably, the suction line forms an S-bend configured to inhibit gas from exiting the internal chamber through the suction line. 25          Preferably, the suction system includes a suction control system configured to control operation of the suction system. Preferably, the suction control system configured to monitor the suction system. Preferably, the suction control system is computerized and includes at least one programmable logic controller (PLC). Preferably, the suction control system includes flow meters configured to measure 30 fluid flow within the suction line. Preferably, the suction system includes fluid level sensors attached to the fixed wall configured to measure the level of fluid within the internal chamber. Preferably, the suction control system forms part of or is integrated into the control system of the phase separation apparatus. 2025202672   16 Apr 2025 Preferably, the support structure has one or more rotating supports configured to support the rotatable portion. Preferably, the one or more rotating supports are configured to operably rotate the rotatable portion. Preferably, the one or more rotating supports are motorized. Preferably, the control system of the phase 5 separation apparatus configured to actuate the one or more rotating supports. Preferably, the one or more rotating supports are configured to rotate the rotatable portion in either a first rotational direction or a second rotational direction. In one embodiment, the first rotational direction is preferably a clockwise direction and the second rotational direction is preferably an anticlockwise direction. 10          Preferably, the rotatable portion is configured to move solid material within the internal chamber when the rotatable portion is rotated. More, preferably, the rotatable portion is configured to move solid material within the internal chamber when the rotatable portion is rotated to either the first end or the second end. Preferably, the rotatable portion has a flight on an interior surface thereof. 15 Preferably, the flight is configured to move solid material when the rotatable portion is rotated. Preferably, the flight is helical in configuration. In one embodiment, the vessel is preferably configured to move solid material towards the first end when the rotatable portion is rotated in a clockwise direction. More preferably, the vessel is preferably configured to accumulate solid material 20 towards the first end when the rotatable portion is rotated in a clockwise direction. Preferably, the vessel is configured to move solid material towards the second end when the rotatable portion is rotated in an anticlockwise direction. In one embodiment the rotatable portion is preferably mounted to the support structure on load cells. 25         In one embodiment the rotatable portion preferably has one or more suction points configured to allow for removal of fluid from the internal chamber. Preferably, at least one suction point is positioned adjacent the rotatable portion wall to allow for removal of fluid from between the fixed wall and the internal wall. Preferably, at least one suction point is positioned adjacent the rotatable portion wall to allow for removal 30 of fluid from between the internal wall and the second end. Preferably, the one or more suction points have an open configuration and a closed configuration. Preferably, the one or more suction points are sealable. Preferably, when the rotatable portion is rotated the one or more suction points are in the closed configuration. 2025202672   16 Apr 2025 In one embodiment, the second end is preferably open to the atmosphere. In one embodiment, the phase separation apparatus preferably includes a discharge manifold. Preferably, the discharge manifold is connected to the second end. Preferably, the discharge manifold is fluidly connected to the internal chamber. 5 Preferably, the discharge manifold is mounted on the support structure and allows the rotatable portion to rotate while being fluidly connected to the internal chamber. Preferably, the discharge manifold is configured to discharge the separated gas. Preferably, the discharge manifold includes a chute and a chute door to close the chute. Preferably, the chute door is openable to allow removal of solid material 10 from the chute. Preferably, the discharge manifold includes a demister pad with large diameter exit point. Preferably, when the chute door is in a closed position gas is forced through the demister pad prior to exiting the manifold. In one embodiment, the discharge manifold has a static-proof discharge sock. Preferably, the static proof 15 discharge sock is configured to movably position the point of discharge of the gas. Preferably, the phase separation apparatus includes a flare system. Preferably, the flare system includes a fan. Preferably, the flare system is fluidly connected to the discharge manifold. Preferably, the flare system includes a flare stack. Preferably, the flare stack 20 includes a flash back arrestor and a pilot. Preferably, the flare stack includes further includes one or more sensors configured to measure properties of gases such as flow rate, pressure, temperature, and / or velocity. Preferably, the flare stack is collapsable with a collapsed configuration for transportation and a raised configuration for operation. Preferably, the flare stack has an outlet positionable 25 above the vessel. Preferably, the flare stack has an outlet shroud positioned on the outlet. In one embodiment the flare stack preferably has a large diameter. In another embodiment the flare stack preferably has a static-proof flare sock. Preferably, the static proof flare sock is configured to movably position the point of discharge of the gas. 30          Preferably, the phase separation apparatus includes a pressure relief valve positioned at the large diameter discharge point. Preferably, the pressure relief valve directs gas to flow through the large diameter discharge point when the gas flow is in excess of the capability of the flare stack. Preferably, when the pressure 2025202672   16 Apr 2025 relief valve is closed and / or the pilot is extinguished gas flow is diverted to the flare stack is closed. In one embodiment, the fan is preferably configured to create a negative pressure in the internal chamber. 5          Preferably, the support structure has a front end and a rear end with the phase separation apparatus being oriented such that the first end faces the front end and the second end faces the rear end. In one embodiment, the support structure is preferably a vehicle trailer. Preferably, the support structure is tiltable. Preferably, the support structure is 10 tiltable up to an angle of 15 degrees. Preferably, the support structure is a rock-over vehicle trailer. In one embodiment the flare system is preferably positioned towards the front end of the support structure. Preferably, the phase separation apparatus has a power supply configured to 15 provide power to the phase separation apparatus. Preferably, the power supply is a generator. In another aspect, the present invention broadly resides in a method of separating phases of a fluid using a phase separation apparatus, the phase separation apparatus including 20          a support structure; and a vessel defining an internal chamber, the vessel including a rotatable portion mounted on the support structure, the rotatable portion having a first end and a second end; and a fixed wall mounted on the support structure and configured to sealingly 25 engage with the first end, the fixed wall having an aperture to receive a fluid supply line, wherein the internal chamber is configured to receive fluid from the fluid supply line the method including 30          introducing fluid into the internal chamber; and rotating the rotatable portion so that at least gaseous components and liquid components of the fluid separate. 2025202672   16 Apr 2025 Preferably, the method includes rotating the rotatable portion so that gaseous components of the fluid, liquid components of the fluid, and solid components within the fluid separate. Preferably, the rotatable portion is a substantially cylindrical drum. 5          Preferably, the rotatable portion is rotatable at a rotational speed of less than 3 rpm. More preferably, the rotatable portion is rotatable at a rotational speed of between 1 rpm and 2 rpm. In one embodiment, the fluid supply line is preferably a Blooey line. Preferably, the Blooey line has a diameter between 152mm to 204mm. 10          In another embodiment, the fluid supply line is preferably a choke line. Preferably, the choke line has a diameter between 76mm to 102mm. Preferably, the phase separation apparatus has a fluid diffusor configured to diffuse the fluid from the fluid supply line. Preferably, the fluid diffuser is positioned within the internal chamber. Preferably, the fluid diffuser is attached to the fixed wall. 15          In one embodiment the fluid diffusor is preferably a slotted pipe. In another embodiment the fluid diffusor is preferably an inlet device comprising a plurality of diffusing vanes. Preferably, the plurality of diffusing vanes dissipate the kinetic energy of the fluid as the fluid enters the internal chamber. Preferably, the plurality of diffusing vanes provide centrifugal acceleration to promote 20 separation of the liquid components and gaseous components of the fluid. Preferably, the phase separation apparatus has an internal wall attached to the inside of the rotatable portion. Preferably, the phase separation apparatus has a deflector attached to the fixed wall. In one embodiment, the deflector is preferably a deflector shroud. 25 Preferably, the deflector shroud substantially envelopes the fluid diffusor and has a large opening through which the diffused fluid can flow. In another embodiment, the deflector is preferably a deflector plate. Preferably, the deflector is configured to direct the fluid from the fluid supply line to one side of the internal wall. Preferably, the phase separation apparatus has a control system configured 30 to control operation of the phase separation apparatus. Preferably, the control system configured to monitor the phase separation apparatus. Preferably, the control system is computerized and includes at least one programmable logic controller (PLC). 2025202672   16 Apr 2025 Preferably, the phase separation apparatus has a suction system. Preferably, the suction system is configured to remove the separated liquid from the internal chamber. Preferably, the suction system includes a pump and a suction line. Preferably, the suction line passes through the fixed wall. Preferably, a suction end 5 of the suction line is positioned within the internal chamber adjacent to the first end. Preferably, the suction end of the suction line is positioned within the internal chamber between the fixed wall and the internal wall. Preferably, the suction line forms an S-bend configured to inhibit gas from exiting the internal chamber through the suction line. 10          Preferably, the suction system includes a suction control system configured to control operation of the suction system. Preferably, the suction control system configured to monitor the suction system. Preferably, the suction control system is computerized and includes at least one programmable logic controller (PLC). Preferably, the suction control system includes flow meters configured to measure 15 fluid flow within the suction line. Preferably, the suction system includes fluid level sensors attached to the fixed wall configured to measure the level of fluid within the internal chamber. Preferably, the suction control system forms part of or is integrated into the control system of the phase separation apparatus. Preferably, the support structure has one or more rotating supports configured 20 to support the rotatable portion. Preferably, the one or more rotating supports are configured to operably rotate the rotatable portion. Preferably, the one or more rotating supports are motorized. Preferably, the control system of the phase separation apparatus configured to actuate the one or more rotating supports. Preferably, the one or more rotating supports are configured to rotate the rotatable 25 portion in either a first rotational direction or a second rotational direction. In one embodiment, the first rotational direction is preferably a clockwise direction and the second rotational direction is preferably an anticlockwise direction. Preferably, the rotatable portion is configured to move solid material within the internal chamber when the rotatable portion is rotated. More, preferably, the 30 rotatable portion is configured to move solid material within the internal chamber when the rotatable portion is rotated to either the first end or the second end. Preferably, the rotatable portion has a flight on an interior surface thereof. Preferably, the flight is configured to move solid material when the rotatable portion is rotated. Preferably, the flight is helical in configuration. 2025202672   16 Apr 2025 In one embodiment, the vessel is preferably configured to move solid material towards the first end when the rotatable portion is rotated in a clockwise direction. More preferably, the vessel is preferably configured to accumulate solid material towards the first end when the rotatable portion is rotated in a clockwise direction. 5 Preferably, the vessel is configured to move solid material towards the second end when the rotatable portion is rotated in an anticlockwise direction. Preferably, the method includes feeding fluid into the internal chamber and rotating the rotatable portion to move solid material towards the second end. In one embodiment, the phase separation apparatus preferably includes a 10 discharge manifold. Preferably, the discharge manifold is connected to the second end. Preferably, the discharge manifold is fluidly connected to the internal chamber. Preferably, the discharge manifold is mounted on the support structure and allows the rotatable portion to rotate while being fluidly connected to the internal chamber. Preferably, the discharge manifold is configured to discharge the separated gas. 15         Preferably, the discharge manifold includes a chute and a chute door to close the chute. Preferably, the chute door is openable to allow removal of solid material from the chute. Preferably, the discharge manifold includes a demister pad with large diameter exit point. Preferably, when the chute door is in a closed position gas is 20 forced through the demister pad prior to exiting the manifold. In one embodiment, the discharge manifold has a static-proof discharge sock. Preferably, the static proof discharge sock is configured to movably position the point of discharge of the gas. Preferably, the phase separation apparatus includes a flare system. Preferably, the flare system includes a fan. Preferably, the flare system is fluidly 25 connected to the discharge manifold. In one embodiment, the second end is preferably open to the atmosphere. Preferably, the flare system includes a flare stack. Preferably, the flare stack includes a flash back arrestor and a pilot. Preferably, the flare stack includes further includes one or more sensors configured to measure properties of gases such as 30 flow rate, pressure, temperature, and / or velocity. Preferably, the flare stack is collapsable with a collapsed configuration for transportation and a raised configuration for operation. Preferably, the flare stack has an outlet positionable above the vessel. Preferably, the flare stack has an outlet shroud positioned on the outlet. In one embodiment the flare stack preferably has a large diameter. In another 2025202672   16 Apr 2025 embodiment the flare stack preferably has a static-proof flare sock. Preferably, the static proof flare sock is configured to movably position the point of discharge of the gas. Preferably, the phase separation apparatus includes a pressure relief valve 5 positioned at the large diameter discharge point. Preferably, the pressure relief valve directs gas to flow through the large diameter discharge point when the gas flow is in excess of the capability of the flare stack. Preferably, when the pressure relief valve is closed and / or the pilot is extinguished gas flow is diverted to the flare stack is closed. 10         In one embodiment the rotatable portion is preferably mounted to the support structure on load cells. In one embodiment, the fan is preferably configured to create a negative pressure in the internal chamber. Preferably, the support structure has a front end and a rear end with the 15 phase separation apparatus being oriented such that the first end faces the front end and the second end faces the rear end. In one embodiment, the support structure is preferably a vehicle trailer. Preferably, the support structure is tiltable. Preferably, the support structure is tiltable up to an angle of 15 degrees. Preferably, the method includes tilting the 20 support structure such that liquid within the internal chamber moves towards the first end of the rotatable portion. Preferably, the support structure is a rock-over vehicle trailer. In one embodiment the flare system is preferably positioned towards the front end of the support structure. 25          In another aspect, the present invention broadly resides in a trailer having a support structure and a phase separation apparatus mounted on the support structure, the phase separation apparatus having a vessel defining an internal chamber, the vessel including 30                a rotatable portion mounted on the support structure, the rotatable portion having a first end and a second end; and a fixed wall mounted on the support structure and configured to sealingly engage with the first end, the fixed wall having an aperture to receive a fluid supply line, 2025202672   16 Apr 2025 wherein the internal chamber is configured to receive fluid from the fluid supply line. Preferably, the rotatable portion is a substantially cylindrical drum. Preferably, the rotatable portion is rotatable at a rotational speed of less than 5   3 rpm. More preferably, the rotatable portion is rotatable at a rotational speed of between 1 rpm and 2 rpm. In one embodiment, the fluid supply line is preferably a Blooey line. Preferably, the Blooey line has a diameter between 152mm to 204mm. In another embodiment, the fluid supply line is preferably a choke line. 10 Preferably, the choke line has a diameter between 76mm to 102mm. Preferably, the phase separation apparatus has a fluid diffusor configured to diffuse the fluid from the fluid supply line. Preferably, the fluid diffuser is positioned within the internal chamber. Preferably, the fluid diffuser is attached to the fixed wall. In one embodiment the fluid diffusor is preferably a slotted pipe. 15          In another embodiment the fluid diffusor is preferably an inlet device comprising a plurality of diffusing vanes. Preferably, the plurality of diffusing vanes dissipate the kinetic energy of the fluid as the fluid enters the internal chamber. Preferably, the plurality of diffusing vanes provide centrifugal acceleration to promote separation of liquid components and gaseous components of the fluid. 20          Preferably, the phase separation apparatus has an internal wall attached to the inside of the rotatable portion. Preferably, the phase separation apparatus has a deflector attached to the fixed wall. In one embodiment, the deflector is preferably a deflector shroud. Preferably, the deflector shroud substantially envelopes the fluid diffusor and has a 25 large opening through which the diffused fluid can flow. In another embodiment, the deflector is preferably a deflector plate. Preferably, the deflector is configured to direct the fluid from the fluid supply line to one side of the internal wall. Preferably, the phase separation apparatus has a control system configured to control operation of the phase separation apparatus. Preferably, the control 30 system configured to monitor the phase separation apparatus. Preferably, the control system is computerized and includes at least one programmable logic controller (PLC). Preferably, the phase separation apparatus has a suction system. Preferably, the suction system is configured to remove the separated liquid from the internal 2025202672   16 Apr 2025 chamber. Preferably, the suction system includes a pump and a suction line. Preferably, the suction line passes through the fixed wall. Preferably, a suction end of the suction line is positioned within the internal chamber adjacent to the first end. Preferably, the suction end of the suction line is positioned within the internal 5 chamber between the fixed wall and the internal wall. Preferably, the suction line forms an S-bend configured to inhibit gas from exiting the internal chamber through the suction line. Preferably, the suction system includes a suction control system configured to control operation of the suction system. Preferably, the suction control system 10 configured to monitor the suction system. Preferably, the suction control system is computerized and includes at least one programmable logic controller (PLC). Preferably, the suction control system includes flow meters configured to measure fluid flow within the suction line. Preferably, the suction system includes fluid level sensors attached to the fixed wall configured to measure the level of fluid within the 15 internal chamber. Preferably, the suction control system forms part of or is integrated into the control system of the phase separation apparatus. Preferably, the support structure has one or more rotating supports configured to support the rotatable portion. Preferably, the one or more rotating supports are configured to operably rotate the rotatable portion. Preferably, the one or more 20 rotating supports are motorized. Preferably, the control system of the phase separation apparatus configured to actuate the one or more rotating supports. Preferably, the one or more rotating supports are configured to rotate the rotatable portion in either a first rotational direction or a second rotational direction. In one embodiment, the first rotational direction is preferably a clockwise direction and the 25 second rotational direction is preferably an anticlockwise direction. Preferably, the rotatable portion is configured to move solid material within the internal chamber when the rotatable portion is rotated. More, preferably, the rotatable portion is configured to move solid material within the internal chamber when the rotatable portion is rotated to either the first end or the second end. 30          Preferably, the rotatable portion has a flight on an interior surface thereof. Preferably, the flight is configured to move solid material when the rotatable portion is rotated. Preferably, the flight is helical in configuration. In one embodiment, the vessel is preferably configured to move solid material towards the first end when the rotatable portion is rotated in a clockwise direction. 2025202672   16 Apr 2025 More preferably, the vessel is preferably configured to accumulate solid material towards the first end when the rotatable portion is rotated in a clockwise direction. Preferably, the vessel is configured to move solid material towards the second end when the rotatable portion is rotated in an anticlockwise direction. 5         In one embodiment, the phase separation apparatus preferably includes a discharge manifold. Preferably, the discharge manifold is connected to the second end. Preferably, the discharge manifold is fluidly connected to the internal chamber. Preferably, the discharge manifold is mounted on the support structure and allows the rotatable portion to rotate while being fluidly connected to the internal chamber. 10 Preferably, the discharge manifold is configured to discharge the separated gas. Preferably, the discharge manifold includes a chute and a chute door to close the chute. Preferably, the chute door is openable to allow removal of solid material from the chute. Preferably, the discharge manifold includes a demister pad with large 15 diameter exit point. Preferably, when the chute door is in a closed position gas is forced through the demister pad prior to exiting the manifold. In one embodiment, the discharge manifold has a static-proof discharge sock. Preferably, the static proof discharge sock is configured to movably position the point of discharge of the gas. Preferably, the phase separation apparatus includes a flare system. 20 Preferably, the flare system includes a fan. Preferably, the flare system is fluidly connected to the discharge manifold. In one embodiment, the second end is preferably open to the atmosphere. Preferably, the flare system includes a flare stack. Preferably, the flare stack includes a flash back arrestor and a pilot. Preferably, the flare stack includes further 25 includes one or more sensors configured to measure properties of gases such as flow rate, pressure, temperature, and / or velocity. Preferably, the flare stack is collapsable with a collapsed configuration for transportation and a raised configuration for operation. Preferably, the flare stack has an outlet positionable above the vessel. Preferably, the flare stack has an outlet shroud positioned on the 30 outlet. In one embodiment the flare stack preferably has a large diameter. In another embodiment the flare stack preferably has a static-proof flare sock. Preferably, the static proof flare sock is configured to movably position the point of discharge of the gas. 2025202672   16 Apr 2025 Preferably, the phase separation apparatus includes a pressure relief valve positioned at the large diameter discharge point. Preferably, the pressure relief valve directs gas to flow through the large diameter discharge point when the gas flow is in excess of the capability of the flare stack. Preferably, when the pressure 5 relief valve is closed and / or the pilot is extinguished gas flow is diverted to the flare stack is closed. In one embodiment the rotatable portion is preferably mounted to the support structure on load cells. In one embodiment, the fan is preferably configured to create a negative 10 pressure in the internal chamber. Preferably, the trailer has a front end and a rear end with the phase separation apparatus being oriented such that the first end faces the front end and the second end faces the rear end. Preferably, the support structure is tiltable. Preferably, the support structure 15 is tiltable up to an angle of 15 degrees. In one embodiment the flare system is preferably positioned towards the front end of the support structure. Preferably, the phase separation apparatus has a power supply configured to provide power to the phase separation apparatus. Preferably, the power supply is a 20 generator. In another aspect, the present invention broadly resides in a vehicle, the vehicle having a support structure and a phase separation apparatus mounted on the support structure, the phase separation apparatus having a vessel defining an internal chamber, 25 the vessel including a rotatable portion mounted on the support structure, the rotatable portion having a first end and a second end; and a fixed wall mounted on the support structure and configured to sealingly engage with the first end, the fixed wall having an aperture to 30          receive a fluid supply line, wherein the internal chamber is configured to receive fluid from the fluid supply line. Preferably, the rotatable portion is a substantially cylindrical drum. 2025202672   16 Apr 2025 Preferably, the rotatable portion is rotatable at a rotational speed of less than 3 rpm. More preferably, the rotatable portion is rotatable at a rotational speed of between 1 rpm and 2 rpm. In one embodiment, the fluid supply line is preferably a Blooey line. 5 Preferably, the Blooey line has a diameter between 152mm to 204mm. In another embodiment, the fluid supply line is preferably a choke line. Preferably, the choke line has a diameter between 76mm to 102mm. Preferably, the phase separation apparatus has a fluid diffusor configured to diffuse the fluid from the fluid supply line. Preferably, the fluid diffuser is positioned 10 within the internal chamber. Preferably, the fluid diffuser is attached to the fixed wall. In one embodiment the fluid diffusor is preferably a slotted pipe. In another embodiment the fluid diffusor is preferably an inlet device comprising a plurality of diffusing vanes. Preferably, the plurality of diffusing vanes dissipate the kinetic energy of the fluid as the fluid enters the internal chamber. 15 Preferably, the plurality of diffusing vanes provide centrifugal acceleration to promote separation of liquid components and gaseous components of the fluid. Preferably, the phase separation apparatus has an internal wall attached to the inside of the rotatable portion. Preferably, the phase separation apparatus has a deflector attached to the 20 fixed wall. In one embodiment, the deflector is preferably a deflector shroud. Preferably, the deflector shroud substantially envelopes the fluid diffusor and has a large opening through which the diffused fluid can flow. In another embodiment, the deflector is preferably a deflector plate. Preferably, the deflector is configured to direct the fluid from the fluid supply line to one side of the internal wall. 25         Preferably, the phase separation apparatus has a control system configured to control operation of the phase separation apparatus. Preferably, the control system configured to monitor the phase separation apparatus. Preferably, the control system is computerized and includes at least one programmable logic controller (PLC). 30          Preferably, the phase separation apparatus has a suction system. Preferably, the suction system is configured to remove the separated liquid from the internal chamber. Preferably, the suction system includes a pump and a suction line. Preferably, the suction line passes through the fixed wall. Preferably, a suction end of the suction line is positioned within the internal chamber adjacent to the first end. 2025202672   16 Apr 2025 Preferably, the suction end of the suction line is positioned within the internal chamber between the fixed wall and the internal wall. Preferably, the suction line forms an S-bend configured to inhibit gas from exiting the internal chamber through the suction line. 5          Preferably, the suction system includes a suction control system configured to control operation of the suction system. Preferably, the suction control system configured to monitor the suction system. Preferably, the suction control system is computerized and includes at least one programmable logic controller (PLC). Preferably, the suction control system includes flow meters configured to measure 10 fluid flow within the suction line. Preferably, the suction system includes fluid level sensors attached to the fixed wall configured to measure the level of fluid within the internal chamber. Preferably, the suction control system forms part of or is integrated into the control system of the phase separation apparatus. Preferably, the support structure has one or more rotating supports configured 15 to support the rotatable portion. Preferably, the one or more rotating supports are configured to operably rotate the rotatable portion. Preferably, the one or more rotating supports are motorized. Preferably, the control system of the phase separation apparatus configured to actuate the one or more rotating supports. Preferably, the one or more rotating supports are configured to rotate the rotatable 20 portion in either a first rotational direction or a second rotational direction. In one embodiment, the first rotational direction is preferably a clockwise direction and the second rotational direction is preferably an anticlockwise direction. Preferably, the rotatable portion is configured to move solid material within the internal chamber when the rotatable portion is rotated. More, preferably, the 25 rotatable portion is configured to move solid material within the internal chamber when the rotatable portion is rotated to either the first end or the second end. Preferably, the rotatable portion has a flight on an interior surface thereof. Preferably, the flight is configured to move solid material when the rotatable portion is rotated. Preferably, the flight is helical in configuration. 30         In one embodiment, the vessel is preferably configured to move solid material towards the first end when the rotatable portion is rotated in a clockwise direction. More preferably, the vessel is preferably configured to accumulate solid material towards the first end when the rotatable portion is rotated in a clockwise direction. 2025202672   16 Apr 2025 Preferably, the vessel is configured to move solid material towards the second end when the rotatable portion is rotated in an anticlockwise direction. In one embodiment, the phase separation apparatus preferably includes a discharge manifold. Preferably, the discharge manifold is connected to the second 5 end. Preferably, the discharge manifold is fluidly connected to the internal chamber. Preferably, the discharge manifold is mounted on the support structure and allows the rotatable portion to rotate while being fluidly connected to the internal chamber. Preferably, the discharge manifold is configured to discharge the separated gas. Preferably, the discharge manifold includes a chute and a chute door to close 10 the chute. Preferably, the chute door is openable to allow removal of solid material from the chute. Preferably, the discharge manifold includes a demister pad with large diameter exit point. Preferably, when the chute door is in a closed position gas is forced through the demister pad prior to exiting the manifold. In one embodiment, 15 the discharge manifold has a static-proof discharge sock. Preferably, the static proof discharge sock is configured to movably position the point of discharge of the gas. Preferably, the phase separation apparatus includes a flare system. Preferably, the flare system includes a fan. Preferably, the flare system is fluidly connected to the discharge manifold. 20         In one embodiment, the second end is preferably open to the atmosphere. Preferably, the flare system includes a flare stack. Preferably, the flare stack includes a flash back arrestor and a pilot. Preferably, the flare stack includes further includes one or more sensors configured to measure properties of gases such as flow rate, pressure, temperature, and / or velocity. Preferably, the flare stack is 25 collapsable with a collapsed configuration for transportation and a raised configuration for operation. Preferably, the flare stack has an outlet positionable above the vessel. Preferably, the flare stack has an outlet shroud positioned on the outlet. In one embodiment the flare stack preferably has a large diameter. In another embodiment the flare stack preferably has a static-proof flare sock. Preferably, the 30 static proof flare sock is configured to movably position the point of discharge of the gas. Preferably, the phase separation apparatus includes a pressure relief valve positioned at the large diameter discharge point. Preferably, the pressure relief valve directs gas to flow through the large diameter discharge point when the gas 2025202672   16 Apr 2025 flow is in excess of the capability of the flare stack. Preferably, when the pressure relief valve is closed and / or the pilot is extinguished gas flow is diverted to the flare stack is closed. In one embodiment the rotatable portion is preferably mounted to the support 5 structure on load cells. In one embodiment, the fan is preferably configured to create a negative pressure in the internal chamber. Preferably, the vehicle has a front end and a rear end with the phase separation apparatus being oriented such that the first end faces the front end and 10 the second end faces the rear end. Preferably, the support structure is tiltable. Preferably, the support structure is tiltable up to an angle of 15 degrees. In one embodiment the flare system is preferably positioned towards the front end of the support structure. 15         Preferably, the phase separation apparatus has a power supply configured to provide power to the phase separation apparatus. Preferably, the power supply is a generator. In one aspect, the present invention broadly resides in a phase separation apparatus, including 20          a support structure; and a vessel defining an internal chamber, the vessel including a rotatable portion mounted on the support structure, the rotatable portion having a first end and a second end; a fixed wall mounted on the support structure and configured to sealingly 25 engage with the first end, the fixed wall having an aperture to receive a fluid supply line; wherein the internal chamber is configured to receive fluid from the fluid supply line; wherein the support structure has one or more rotating supports configured to 30 support the rotatable portion; wherein the rotatable portion has a flight on an interior surface thereof; and wherein the flight is configured to move solid material when the rotatable portion is rotated. 2025202672   16 Apr 2025 In one aspect, the present invention broadly resides in a phase separation apparatus, including a tiltable support structure; and a vessel defining an internal chamber, the vessel including 5          a rotatable portion mounted on the support structure, the rotatable portion having a first end and a second end; a fixed wall mounted on the support structure and configured to sealingly engage with the first end, the fixed wall having an aperture to receive a fluid supply line; 10          an internal wall attached to the inside of the rotatable portion; a deflector attached to the fixed wall, the deflector configured to direct the fluid from the fluid supply line to one side of the internal wall; a fluid diffusor configured to diffuse the fluid from the fluid supply line; a discharge manifold fluidly connected to the internal chamber and configured 15 to discharge the separated gas; a flare system; and a suction system is configured to remove the separated liquid from the internal chamber wherein the internal chamber is configured to receive fluid from the fluid 20 supply line; wherein the support structure has one or more rotating supports configured to support the rotatable portion; wherein the rotatable portion has a flight on an interior surface thereof; and wherein the flight is configured to move solid material when the rotatable 25 portion is rotated. The features described with respect to one aspect also apply where applicable to all other aspects of the invention. Furthermore, different combinations of described features are herein described and claimed even when not expressly stated. 30 BRIEF DESCRIPTION OF THE DRAWINGS In order that the present invention can be more readily understood reference will now be made to the accompanying drawings which illustrate a preferred embodiment of the invention and wherein: 2025202672   16 Apr 2025 Figure 1 is a perspective view of a phase separation apparatus according to an embodiment of the present invention; Figure 2 is a further perspective view of the phase separation apparatus of Figure 1; 5          Figure 3 is a side view of the phase separation apparatus of Figure 1; Figure 4 is a cross-sectional side view of the phase separation apparatus of Figure 1; and Figure 5 is a cut-away perspective view of the phase separation apparatus of Figure 1. 10 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT With reference to Figures 1 to 5 there is shown a phase separation apparatus 10. The phase separation apparatus 10, includes a support structure 20, a vessel 30, a flare stack 80, a discharge manifold 90, a control cabinet 100, and a generator 15   110. The vessel 30 defines an internal chamber. The vessel 30 includes a rotatable portion 32 and a fixed wall 34. The rotatable portion 32 is mounted on the support structure 20. The rotatable portion 32 has a first end 12 and a second end 14. 20          The support structure 20 is a rock-over vehicle trailer. The support structure 20 has a front end 24 and a rear end 26 with the phase separation apparatus 10 being oriented such that the first end 12 faces the front end 24 and the second end 14 faces the rear end 26. The control cabinet 100 and the generator 110 are mounted towards the front end 24. 25         The fixed wall 34 is mounted on the support structure 20 and configured to sealingly engage with the first end. The fixed wall 34 has an aperture to receive a fluid supply line 40. The internal chamber is configured to receive fluid from the fluid supply line 40. 30         The fluid supply line 40 is a Blooey line with a diameter of between 152mm to 204mm. The phase separation apparatus 10 has a fluid diffusor 50 positioned within the internal chamber and attached to the fixed wall 32. The fluid diffusor 50 is configured to diffuse the fluid from the fluid supply line 40. 2025202672   16 Apr 2025 The fluid diffusor 50 is an inlet device comprising a plurality of diffusing vanes arranged to dissipate the kinetic energy of the fluid as the fluid enters the internal chamber. The plurality of diffusing vanes provide centrifugal acceleration to promote separation of liquid components and gaseous components of the fluid. A suitable 5 type of fluid diffuser comprising a plurality of diffusing vanes is the Shell SchoepentoeterTM. The phase separation apparatus 10 has an internal wall 36 attached to the inside of the rotatable portion 32. The internal wall 36 forms a front compartment adjacent the first end 12. 10         The phase separation apparatus 10 has a deflector shroud 60 attached to the fixed wall 34 and surrounding the sides of the fluid diffusor 50. The deflector shroud 60 substantially envelopes the fluid diffusor 50 and has a large opening through which the diffused fluid can flow. The deflector shroud 60 is configured to direct the fluid from the fluid diffusor 50 to one side of the internal wall 36. This reduces the 15 likelihood of solid material accumulating in the front compartment. The phase separation apparatus has a control system located in the control cabinet 100. The control system is configured to monitor and control operation of the phase separation apparatus. The control system is computerized and includes at least one programmable logic controller (PLC). The control system includes a 20 suction control system. The phase separation apparatus has a suction system 70 configured to remove the separated liquid from the internal chamber. The suction system 70 includes a suction line 72. The suction line 72 branches off to two lines either side of the exterior of the vessel 30. The suction line 72 passes through the fixed wall 34. 25 The suction line 72 has a suction end 74 which is positioned within the front compartment. Within the front compartment the suction line 72 bends at a 90-degree angle between the fixed wall 34 and suction end 74. There is an approximately 50mm gap between the rotatable portion 32 and the suction end 74. The suction control system is configured to monitor and control operation of 30 the suction system 70. The suction control system includes flow meters configured to measure fluid flow within the suction line 72. The suction system 70 includes fluid level sensors attached to the fixed wall 34 configured to measure the level of fluid within the internal chamber. 2025202672   16 Apr 2025 The support structure 20 has four motorized rotating supports 22 configured to support and operably rotate the rotatable portion 32. The rotatable portion is rotatable at a rotational speed of between 1 rpm and 2 rpm. The rotating supports 22 are configured to rotate the rotatable portion 32 in either a first rotational direction 5 (clockwise) or a second rotational direction (anticlockwise). The control system of the phase separation apparatus is configured to actuate the rotating supports 22. The rotatable portion 32 has a flight 38 on an interior surface thereof. The flight 38 has a helical configuration. The flight 38 is configured to move solid material when the rotatable portion 32 is rotated. 10         The vessel 30 is configured to move and accumulate solid material towards the first end 12 when the rotatable portion 32 is rotated in a clockwise direction. The vessel 30 is configured to move solid material towards the second end 14 when the rotatable portion 32 is rotated in an anticlockwise direction. The discharge manifold 90 is connected to the second end 14. The discharge 15 manifold 90 is fluidly connected to the internal chamber. The discharge manifold 90 is mounted on the support structure 20 and allows the rotatable portion 32 to rotate while being fluidly connected to the internal chamber. The flare stack 80 is fluidly connected to the discharge manifold 90 through opening 82. The discharge manifold 90 includes a chute, a demister pad with large 20 diameter exit point, a discharge sock 94 connected to the large diameter exit point, and a chute door 92 configured to obstruct the chute. When the chute door 92 is in a closed position the chute door 92 is obstructed and gas is forced through the demister pad prior to exiting the demister manifold. The chute door 92 is openable to allow removal of solid material from the chute. 25          The flare stack 80 includes a flash back arrestor 84, a fan 86, a pilot 88, an outlet shroud, and one or more sensors configured to measure properties of gases such as flow rate, pressure, temperature, and / or velocity. The flare stack 80 is fluidly connected to the internal chamber via the discharge manifold 90. The fan 86 is configured to create a negative pressure in the internal 30 chamber. Creating a negative pressure in the internal chamber is a measure to mitigate gas leaks and could be used to ensure minimum exit velocity at the stack to limit burn back. In open well work over operations it is advantageous for the flare system to have a large blower fan as downdraft is desired at the opening of a well during maintenance operations. 2025202672   16 Apr 2025 The phase separation apparatus 10 includes a pressure relief valve positioned at the large diameter discharge point. The pressure relief valve directs gas to flow through the large diameter discharge point when the gas flow is in excess of the capability of the flare stack 80. When the pressure relief valve is closed and / or 5 the pilot 88 is extinguished gas flow is diverted to the flare stack 80 is closed. The rotatable portion 32 is mounted to the support structure on load cells. The load cells help the operator determine the rate of return of solid material. In use, the load cells are zeroed with the internal chamber being full of fluid. Subsequently, any solid material entering the tank will displace fluid. The control system is 10 configured to calculate the quantity of solid material present in the internal chamber, and display information such as a trend line and the total amount of solid material. The generator 110 provides power to the phase separation apparatus. In use a gas / liquid mixture is fed through the fluid supply line 40 into the internal chamber through the fluid diffusor 50. The gas / liquid mixture could have 15 entrained solid material. The fluid diffusor 50 decreases the momentum of the feed, perform a first stage separation of solid material and liquid from the vapor / gas, and achieve an even vapor / gas distribution across the vessel 30 cross section. The support structure 20 can be tilted such that liquid within the internal chamber moves towards the first end 12. Fluid that enters into the front 20 compartment can be removed by the suction system 70. Solid material entrained in the gas / liquid mixture sink and accumulate towards the bottom of the internal chamber. The rotatable portion 32 is rotated by the rotating supports 22 such that the flight 38 move the solid material towards the towards the second end 14 where the solid material can be removed through the 25 chute door 92. Gases are drawn through the discharge manifold 90 by the negative pressure produced by the fan 86 and expelled from the flare stack 80. If the gas flow is in excess of the capacity of the flare stack 80 the pressure relief valve is opened to allow gas to flow through the large diameter discharge point. If the pressure valve is 30 open it is safe practice to either close flow to the flare stack and / or to extinguish the pilot 88. ADVANTAGES 2025202672   16 Apr 2025 An advantage of the preferred embodiment of the phase separation apparatus includes that liquids and gases can be efficiently separated. Another advantage of the preferred embodiment of the phase separation apparatus is that the rotating portion addresses the accumulation and removal of 5 solid material. In particular, the flight arrangement assists in moving the solid material. A further advantage of the preferred embodiment of the phase separation apparatus is that the rotating portion with the flight arrangement allow the phase separation apparatus to be self-cleaning. 10 VARIATIONS While the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and 15 ambit of this invention as is herein set forth. Throughout the description and claims of this specification the word “comprise” and variations of that word such as “comprises” and “comprising”, are not intended to exclude other additives, components, integers or steps.

Claims

1. A phase separation apparatus, including a support structure; and5          a vessel defining an internal chamber, the vessel includinga rotatable portion mounted on the support structure, the rotatable portion having a first end and a second end; anda fixed wall mounted on the support structure and configured to sealingly engage with the first end, the fixed wall having an aperture to receive a fluid supply 10 line,wherein the internal chamber is configured to receive fluid from the fluid supply line.

2. A phase separation apparatus according to claim 1, wherein the phase 15 separation apparatus has a fluid diffusor configured to diffuse the fluid from the fluid supply line.

3. A phase separation apparatus according to claim 1 or 2, wherein the phase separation apparatus has an internal wall attached to the inside of the rotatable 20 portion.

4. A phase separation apparatus according to claim 3, wherein the phase separation apparatus has a deflector attached to the fixed wall configured to direct the fluid from the fluid supply line to one side of the internal wall.

255. A phase separation apparatus according to any one of the preceding claims, the rotatable portion has a flight on an interior surface thereof, the flight being configured to move solid material when the rotatable portion is rotated.30   6. A phase separation apparatus according to any one of the preceding claims,wherein the phase separation apparatus has a suction system including a suction line, the suction line having a suction end positioned within the internal chamber between the fixed wall and the internal wall.2025202672   16 Apr 20257. A phase separation apparatus according to any one of the preceding claims, wherein the support structure has one or more rotating supports configured to support and operably rotate the rotatable portion.5   8. A phase separation apparatus according to claim 7, wherein the one or morerotating supports are configured to rotate the rotatable portion in either a first rotational direction or a second rotational direction.

9. A phase separation apparatus according to claim 8, wherein the first rotational 10 direction is a clockwise direction and the second rotational direction is preferably an anticlockwise direction, and the vessel is configured to move solid material towards the second end when the rotatable portion is rotated in an anticlockwise direction10. A phase separation apparatus according to any one of the preceding claims, 15 wherein the phase separation apparatus includes a discharge manifold fluidlyconnected to the internal chamber,11. A phase separation apparatus according to any one of the preceding claims, wherein the phase separation apparatus includes a flare system.2012. A phase separation apparatus according to any one of the preceding claims, wherein the flare system includes a fan configured to create a negative pressure in the internal chamber.25   17. A phase separation apparatus according to any one of the preceding claims,wherein the support structure is tiltable.

18. A method of separating phases of a fluid using a phase separation apparatus, the phase separation apparatus including30                a support structure; anda vessel defining an internal chamber, the vessel includinga rotatable portion mounted on the support structure, the rotatable portion having a first end and a second end; and2025202672   16 Apr 2025a fixed wall mounted on the support structure and configured to sealingly engage with the first end, the fixed wall having an aperture to receive a fluid supply line,wherein the internal chamber is configured to receive fluid from the fluid 5 supply linethe method includingintroducing fluid into the internal chamber; androtating the rotatable portion so that at least gaseous components and liquid components of the fluid separate.1013. A method of separating phases of a fluid using a phase separation apparatus according to claim 12, wherein the method includes rotating the rotatable portion so that gaseous components of the fluid, liquid components of the fluid, and solid 15 components within the fluid separate.

14. A method of separating phases of a fluid using a phase separation apparatus according to claim 12 or 13, wherein the method includes feeding fluid into the internal chamber and rotating the rotatable portion to move solids towards the 20 second end.

15. A method of separating phases of a fluid using a phase separation apparatus according to any one of claims 12 to 14, wherein the phase separation apparatus has includes a flare system and the method includes flaring the gas with the flare 25 system.

16. A method of separating phases of a fluid using a phase separation apparatus according to any one of the claims 12 to 15, wherein the method includes tilting the support structure such that liquid within the internal chamber moves towards the first 30 end of the rotatable portion.

19. A trailer having a support structure and a phase separation apparatus mounted on the support structure,2025202672   16 Apr 2025the phase separation apparatus having a vessel defining an internal chamber, the vessel includinga rotatable portion mounted on the support structure, the rotatable portion having a first end and a second end; and5                a fixed wall mounted on the support structure and configured tosealingly engage with the first end, the fixed wall having an aperture to receive a fluid supply line,wherein the internal chamber is configured to receive fluid from the fluid supply line.1020. A vehicle having a support structure and a phase separation apparatus mounted on the support structure,the phase separation apparatus having a vessel defining an internal chamber, the vessel including15                a rotatable portion mounted on the support structure, the rotatableportion having a first end and a second end; anda fixed wall mounted on the support structure and configured to sealingly engage with the first end, the fixed wall having an aperture to receive a fluid supply line,20          wherein the internal chamber is configured to receive fluid from the fluidsupply line.

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