Oil field foam flooding produced liquid treatment device

Abstract

The utility model relates to the technical field of oil field produced liquid treatment, in particular to an oil field foam flooding produced liquid treatment device. The oil field foam flooding produced liquid treatment device comprises a butt joint pipe, a butt joint flange is installed at one end of the butt joint pipe, and a sealing plate is installed at the other end of the butt joint pipe; the number of the installation pipes is two, the two installation pipes are symmetrically installed in the middle of the butt joint pipe, air injection pipes are installed in the two installation pipes, pneumatic assemblies are installed on the air injection pipes, air guide holes communicating with the pneumatic assemblies are evenly formed in the air injection pipes, and the pneumatic assemblies comprise rotary damping sealing pieces symmetrically installed on the two sides of the air guide holes. A pneumatic ring is installed on the two rotary damping sealing pieces, the inner wall of the pneumatic ring and the two rotary damping sealing pieces form an air guide channel, the air guide channel is communicated with the air guide hole, a medicament pipe is installed in the air injection pipe, and a dosing assembly is installed in the medicament pipe. The oil field foam flooding produced liquid treatment device provided by the utility model has the advantages of comprehensive treatment and high efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield produced liquid treatment, in particular to an oilfield foam flooding produced liquid treatment device. Background Art

[0002] At present, chemical flooding oil recovery technology has become the dominant technology for sustained and stable production of oil fields. However, due to the presence of oil displacement agents, the treatment of produced fluids is becoming increasingly difficult. The treatment of chemical flooding produced fluids has become one of the main problems plaguing oil field production. Foam flooding is a type of chemical flooding. The foaming agent in the foam flooding system is beneficial to reducing the oil-water interfacial tension and has a strong oil washing ability. However, it leads to an increase in the degree of oil-water emulsification and an increase in the difficulty of oil-water separation, which increases the difficulty of treating foam flooding produced fluids.

[0003] At present, the publication number CN206299369U discloses a hot air foam drive produced liquid processing device, including a main tank body, the upper end of the main tank body is fixedly connected to a main input pipeline for an external carbon dioxide delivery pipe, the inner top surface of the main tank body is located outside the main input pipeline and is fixedly connected to an annular fixed connection plate, and the lower end of the main input pipeline is provided with a rotating disk. The hot air foam drive produced liquid processing device of the utility model utilizes a high-pressure transmission pipe to which four external carbon dioxide delivery pipes are longitudinally fixedly connected on the fixed connection plate, and the air guide bend at the lower end of the high-pressure transmission pipe changes the flow direction of the high-pressure carbon dioxide to impact the transmission impeller, thereby driving the entire rotating disk and the air outlet stirring pipe to perform circular motion, greatly improving the processing efficiency, without the need for electric equipment drive, greatly reducing energy consumption and equipment costs, and it only uses a single gas transmission to stir the produced liquid, and the treatment effect is average for produced liquid with a large foaming agent content.

[0004] Therefore, it is necessary to provide a new oilfield foam flooding produced fluid processing device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an oilfield foam flooding produced liquid processing device with comprehensive processing and high efficiency.

[0006] The utility model provides an oilfield foam flooding produced liquid processing device comprising: a butt joint pipe, one end of which is provided with a butt joint flange, and the other end of which is provided with a sealing plate; a liquid outlet pipe, which is embedded in the sealing plate and communicated with the butt joint pipe, and a stirring assembly is provided on the sealing plate;

[0007] There are two groups of mounting tubes. The two groups of mounting tubes are symmetrically installed in the middle of the docking tube and connected with the docking tube, and air injection tubes are installed in the two groups of mounting tubes. A pneumatic component is installed at one end of the air injection tube extending into the docking tube, and air guide holes connected with the pneumatic component are evenly opened in the air injection tube. The pneumatic component includes rotary damping seals symmetrically installed on both sides of the air guide holes, and pneumatic rings are installed on the two rotary damping seals. The inner wall of the pneumatic ring and the two rotary damping seals form an air guide channel, and the air guide channel is connected with the air guide hole. A medicine tube is installed in the air injection tube, and a drug administration component is installed at one end of the medicine tube extending into the docking tube.

[0008] Preferably, the stirring assembly includes a transmission rod, which is rotatably mounted on the sealing plate, and a plurality of stirring rods are evenly mounted on one end of the transmission rod extending into the docking tube, and a driving motor for driving the transmission rod to rotate is mounted on the sealing plate.

[0009] Preferably, the pneumatic ring is evenly provided with a plurality of cyclone grooves and a plurality of exhaust holes, and the exhaust holes are connected to the air guide channel.

[0010] Preferably, a vibration sheet is installed on the outer side wall of the pneumatic ring outside a plurality of exhaust holes.

[0011] Preferably, the medication administration assembly includes an adapter, which is rotatably mounted on one end of the medicine tube extending into the docking tube, and a plurality of guide tubes are installed on the adapter, and a jet plate is installed at one end of the two guide tubes on the same side facing away from the adapter, and the jet plate has a jet channel connected to the guide tube, and the outer wall of the jet plate is evenly provided with a plurality of jet holes, and a plurality of the jet holes are connected to the jet channel, and the jet plate is fixedly connected to the pneumatic rings at both ends.

[0012] Preferably, the aperture of the jet hole is smaller than the flow diameter of the flow guide tube.

[0013] Compared with the related art, the oilfield foam flooding produced fluid processing device provided by the utility model has the following beneficial effects:

[0014] 1. The utility model provides an oilfield foam flooding produced liquid processing device, wherein an air injection pipe is installed in a symmetrically arranged installation pipe, and a pneumatic component is arranged at the air guide hole of the air injection pipe to realize air injection stirring, and a drug tube is arranged in the air injection pipe. The drug tube realizes rotary drug delivery by using the fluidity of the produced liquid through the cooperation of the adapter, guide pipe, jet plate, jet hole and jet channel of the drug delivery component, and drives the pneumatic ring to rotate stably, thereby realizing efficient treatment of the produced liquid;

[0015] 2. By setting up a stirring component, after gas injection stirring and drug mixing, they are fully stirred to ensure full contact and improve the treatment effect of the produced fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a preferred embodiment of the oilfield foam flooding produced liquid processing device provided by the utility model;

[0017] Figure 2 A schematic diagram of the cross-section of the oilfield foam flooding produced fluid processing device provided by the utility model;

[0018] Figure 3 A schematic diagram of the structure of a pneumatic ring installed on the gas injection pipe provided by the utility model;

[0019] Figure 4 This is a schematic structural diagram of a cross section of a gas injection pipe provided by the utility model with a pneumatic component installed;

[0020] Figure 5 This is a schematic cross-sectional structure diagram of the pneumatic ring provided by the utility model.

[0021] Numbers in the figure: 1. docking tube; 11. docking flange; 12. sealing plate; 2. liquid outlet pipe; 3. stirring assembly; 31. transmission rod; 32. stirring rod; 33. driving motor; 4. mounting tube; 5. air injection pipe; 501. air guide hole; 502. air guide channel; 6. pneumatic assembly; 61. rotary damping seal; 62. pneumatic ring; 63. vibrating plate; 601. cyclone groove; 602. exhaust hole; 7. medicine tube; 8. drug delivery assembly; 81. adapter; 82. guide tube; 83. jet plate; 801. jet hole; 802. jet channel. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0024] See also Figures 1 to 5 The utility model provides an oilfield foam flooding produced fluid processing device, the oilfield foam flooding produced fluid processing device comprising: a butt-joint pipe 1, one end of the butt-joint pipe 1 is equipped with a butt flange 11, and the other end of the butt-joint pipe 1 is equipped with a sealing plate 12;

[0025] The liquid outlet pipe 2 is embedded in the sealing plate 12 and communicated with the butt pipe 1, and the sealing plate 12 is provided with a stirring assembly 3;

[0026] The mounting tube 4 is provided with two groups, and the two groups of mounting tubes 4 are symmetrically mounted in the middle of the docking tube 1 and connected with the docking tube 1, and air injection tubes 5 are installed in both groups of mounting tubes 4, and a pneumatic component 6 is installed at one end of the air injection tube 5 extending into the docking tube 1, and the air injection tube 5 is evenly provided with air guide holes 501 connected with the pneumatic component 6, and the pneumatic component 6 includes rotary damping seals 61 symmetrically mounted on both sides of the air guide holes 501, and pneumatic rings 62 are mounted on the two rotary damping seals 61, and the inner wall of the pneumatic ring 62 and the two rotary damping seals 61 form an air guide channel 502, and the air guide channel 502 is connected with the air guide hole 501, and a medicine tube 7 is installed in the air injection tube 5, and a drug delivery component 8 is installed at one end of the medicine tube 7 extending into the docking tube 1.

[0027] The pneumatic ring 62 is evenly provided with a plurality of cyclone grooves 601 and a plurality of exhaust holes 602, and the exhaust holes 602 are connected to the air guide channel 502;

[0028] It should be noted that: when in use, the docking pipe 1 is connected to the oil outlet pipe of the produced liquid by using the docking flange 11, and then the gas injection pipe 5 is connected to the carbon dioxide supply equipment, and the reagent pipe 7 is connected to the foam treatment agent supply equipment. Then, when the produced liquid flows through the docking pipe 1, the gas flows from the gas guide hole 501 of the gas injection pipe 5 through the gas guide channel 502. When impacting the cyclone groove 601, the pneumatic ring 62 is driven to rotate around the rotary damping seal 61. At the same time, the gas in the gas guide channel 502 is discharged from the exhaust hole 602, and the produced liquid flowing through the docking pipe 1 is injected and stirred. While stirring, the treatment agent is added to the produced liquid through the dosing component 8 to achieve efficient treatment.

[0029] In the present embodiment, a vibration plate 63 is installed on the outer wall of the pneumatic ring 62 outside a plurality of exhaust holes 602. When the gas is discharged from the exhaust holes 602, the gas impacts the vibration plate 63 to vibrate, thereby improving the stirring effect, and further generating ultrasonic waves under high-speed impact, and using ultrasound to impact the produced fluid.

[0030] In the embodiments of the present invention, please refer to Figures 1 to 5 The stirring assembly 3 includes a transmission rod 31, which is rotatably mounted on the sealing plate 12, and a plurality of stirring rods 32 are evenly mounted on one end of the transmission rod 31 extending into the butt joint 1, and a driving motor 33 for driving the transmission rod 31 to rotate is mounted on the sealing plate 12;

[0031] It should be noted that after the drug is added to the dosing component 8 and flows into the transmission rod 31, the drive motor 33 is started to drive the transmission rod 31 to rotate, thereby driving the stirring rod 32 to stir the produced liquid and the added treatment agent to make them fully contact, and then discharge them through the liquid outlet pipe 2 to the next processing process equipment.

[0032] In the embodiments of the present invention, please refer to Figures 1 to 5 The drug delivery assembly 8 includes an adapter 81, which is rotatably mounted on one end of the drug tube 7 extending into the docking tube 1, and a plurality of guide tubes 82 are mounted on the adapter 81, and a jet plate 83 is mounted on one end of the two guide tubes 82 on the same side away from the adapter 81, and the jet plate 83 is provided with a jet channel 802 connected to the guide tube 82, and the outer wall of the jet plate 83 is evenly provided with a plurality of jet holes 801, and the plurality of jet holes 801 are connected to the jet channel 802, and the jet plate 83 is fixedly connected to the pneumatic rings 62 at both ends;

[0033] The diameter of the jet hole 801 is smaller than the flow diameter of the flow guide tube 82 .

[0034] It should be noted that: after the medicine flows from the medicine tube 7 into the guide tube 82 through the adapter 81, the medicine dosing component 8 flows into the jet channel 802, and then is injected into the docking tube 1 through the jet hole 801 to mix with the produced liquid. While dosing, a plurality of jet plates 83 form a water wheel, so that the flowing produced liquid impacts the jet plate 83, driving the jet plate 83 to rotate and dosing. At the same time, the jet plate 83 is also fixedly connected to the pneumatic ring 62, so that the axial driving force is transmitted to each other with the pneumatic ring 62 to achieve stable rotational stirring.

[0035] The working principle of the oilfield foam flooding produced liquid processing device provided by the utility model is as follows:

[0036] When in use, the butt joint pipe 1 is connected to the oil outlet pipe of the produced fluid by using the butt joint flange 11, and then the gas injection pipe 5 is connected to the carbon dioxide supply device, and the reagent pipe 7 is connected to the foam treatment agent supply device. Then, when the produced fluid flows through the butt joint pipe 1, the gas flows from the gas guide hole 501 of the gas injection pipe 5 through the gas guide channel 502, and when it impacts the cyclone groove 601, it drives the pneumatic ring 62 to rotate around the rotary damping seal 61, and at the same time, the gas in the gas guide channel 502 is discharged from the exhaust hole 602, and the produced fluid flowing through the butt joint pipe 1 is discharged. Gas injection stirring is performed. At the same time, the medicine flows from the medicine tube 7 through the adapter 81 into the guide tube 82, flows into the jet channel 802, and then passes through the jet hole 801 to be injected into the butt joint 1 to mix with the produced liquid. While the medicine is being administered, a plurality of jet plates 83 form a water wheel, so that the flowing produced liquid impacts the jet plate 83, driving the jet plate 83 to perform rotational administration. At the same time, the jet plate 83 is also fixedly connected to the pneumatic ring 62, so that the axial driving force is transmitted to each other with the pneumatic ring 62 to achieve stable rotation stirring;

[0037] After the reagent is added, when it flows into the transmission rod 31, the drive motor 33 is started to drive the transmission rod 31 to rotate, thereby driving the stirring rod 32 to stir the produced liquid and the added treatment agent to make them fully contact, and then they are discharged through the liquid outlet pipe 2 to the next processing process equipment.

[0038] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An oilfield foam flooding produced fluid processing device, comprising: A butt-jointed pipe (1), wherein a butt-jointed flange (11) is mounted on one end of the butt-jointed pipe (1), and a sealing plate (12) is mounted on the other end of the butt-jointed pipe (1); It is characterized by further comprising: a liquid outlet pipe (2) embedded in the sealing plate (12) and connected to the butt pipe (1), and a stirring assembly (3) is installed on the sealing plate (12); The mounting tubes (4) are provided with two groups, the two groups of mounting tubes (4) are symmetrically mounted in the middle of the butt-joint tube (1) and are connected to the butt-joint tube (1), and the two groups of mounting tubes (4) are both installed with air injection tubes (5), one end of the air injection tubes (5) extending into the butt-joint tube (1) is installed with a pneumatic component (6), and the air injection tubes (5) are uniformly provided with air guide holes (501) connected to the pneumatic component (6), and the pneumatic component (6) includes air guide holes (501) symmetrically mounted on the air guide holes The invention relates to a rotary damping seal (61) on both sides of the air insulator (501), wherein a pneumatic ring (62) is installed on the two rotary damping seals (61), and the inner wall of the pneumatic ring (62) and the two rotary damping seals (61) form an air guide channel (502), and the air guide channel (502) is connected to the air guide hole (501), and a medicine tube (7) is installed in the air injection tube (5), and a drug delivery component (8) is installed at one end of the medicine tube (7) extending into the docking tube (1).

2. The oilfield foam flooding produced fluid processing device according to claim 1, characterized in that: The stirring assembly (3) comprises a transmission rod (31) which is rotatably mounted on the sealing plate (12), and a plurality of stirring rods (32) are evenly mounted on one end of the transmission rod (31) extending into the butt joint (1). A driving motor (33) for driving the transmission rod (31) to rotate is mounted on the sealing plate (12).

3. The oilfield foam flooding produced fluid processing device according to claim 1, characterized in that: The pneumatic ring (62) is evenly provided with a plurality of cyclone grooves (601) and a plurality of exhaust holes (602), and the exhaust holes (602) are in communication with the air guide channel (502).

4. The oilfield foam flooding produced fluid processing device according to claim 3, characterized in that: A vibration sheet (63) is installed on the outer side wall of the pneumatic ring (62) outside the plurality of exhaust holes (602).

5. The oilfield foam flooding produced fluid processing device according to claim 1, characterized in that: The drug delivery assembly (8) comprises an adapter (81), wherein the adapter (81) is rotatably mounted on one end of the medicine tube (7) extending into the docking tube (1), and a plurality of guide tubes (82) are mounted on the adapter (81), and a jet plate (83) is mounted on one end of two guide tubes (82) on the same side facing away from the adapter (81), wherein the jet plate (83) is provided with a jet channel (802) connected to the guide tube (82), and an outer wall of the jet plate (83) is evenly provided with a plurality of jet holes (801), wherein the plurality of jet holes (801) are connected to the jet channel (802), and the jet plate (83) is fixedly connected to the pneumatic rings (62) at both ends.

6. The oilfield foam flooding produced fluid processing device according to claim 5, characterized in that: The aperture of the jet hole (801) is smaller than the flow diameter of the flow guide tube (82).

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