CN111205898B - In-situ purification treatment system and method for associated gas direct supply gas boiler of low-sulfur oil field - Google Patents
In-situ purification treatment system and method for associated gas direct supply gas boiler of low-sulfur oil field Download PDFInfo
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- CN111205898B CN111205898B CN202010058516.7A CN202010058516A CN111205898B CN 111205898 B CN111205898 B CN 111205898B CN 202010058516 A CN202010058516 A CN 202010058516A CN 111205898 B CN111205898 B CN 111205898B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
Abstract
The invention belongs to the technical field of resource utilization of oilfield associated gas, and particularly relates to an in-situ purification treatment system and method for a direct supply gas boiler of oilfield associated gas with low sulfur content. The invention is composed of an energy storage and pressure stabilizing device, an atomization and trapping device, a refrigerant liquid removing device, a drying and filtering device and the liquid phase recovery device. The associated gas pressure is lifted in the drying and filtering device, and the operation of the energy storage and pressure stabilization device, the atomization and trapping device and the liquid level control device of the liquid discharge hopper at the bottom of the refrigerant liquid removal device solves the problems of large difficulty in centralized collection of micro-gas sulfur-containing associated gas of a dispersed oil well and easy atmospheric pollution and poisoning of surrounding personnel due to emptying combustion.
Description
Technical Field
The invention belongs to the technical field of resource utilization of oilfield associated gas, and particularly relates to an in-situ purification treatment system and method for a direct supply gas boiler of oilfield associated gas with low sulfur content.
Background
In the process of oil field development, a boiler is needed to heat oil, gas and water three phases in each link from an oil production well, a pressurization point, an oil transfer station, a dehydration station, a combination station to an oil transportation station and the like, so as to meet the process requirements of crude oil processing, gathering and transportation and the like. The production area of the oil field is distributed dispersedly, the working environment is remote and severe, the municipal heating pipe network is difficult to cover, and in order to meet the requirements of crude oil production heating and staff life heating, a large amount of coal-fired, oil-fired and gas-fired boilers are used in the production field.
Associated gas after crude oil three-phase separation treatment is used as clean energy and is a main fuel source of an oil field gas boiler. However, when associated gas with low sulfur content is blocked and leaked in an ignition furnace or pipeline condensate, hydrogen sulfide is easy to cause poisoning of workers; meanwhile, as the oil field stations are dispersed, the associated gas amount is small and is not easy to collect, the production field usually adopts an emptying combustion mode to treat the sulfur-containing associated gas, so that not only is the atmosphere pollution generated and the waste of the associated gas resources of the field caused, but also the external gas supply system matched with the sulfur-containing block is constructed to increase the production cost. In the process of clean production and construction of oil fields, coal-fired and oil-fired boilers are gradually eliminated, and a large amount of popularization and application of gas-fired boilers make supply of crude oil associated gas in short supply. How to reasonably and scientifically solve the problem of in-situ purification treatment of the low-sulfur associated gas in the oil field is urgent!
The hydrogen sulfide removing device commonly used at home and abroad is mainly used for purifying natural gas containing sulfur in a gas field, and the natural gas is required to be large in gas amount no matter wet desulfurization or dry desulfurization, so that the continuous working requirement of a desulfurizing tower can be met, and finally hydrogen sulfide is converted into elemental sulfur for recovery. The traditional desulfurizing tower treatment device has complex flow and large investment, the gas amount of associated gas of a low-sulfur oil field is small, the centralized collection cost performance is not high, the concentration of hydrogen sulfide is low and is between 50ppm and 1000ppm, the continuous working requirement of the desulfurizing tower is difficult to meet, and the elemental sulfur of a desulfurization product is easy to deposit, so that the spontaneous combustion risk exists. Therefore, an in-situ purification treatment device suitable for the oil field associated gas with small gas quantity and low sulfur content is required to be found, the gas supply pressure of a gas boiler is relieved, and the in-situ resource utilization of the associated gas is realized.
At present, the technical problem of the direct supply gas boiler of the sulfur-containing associated gas in the oil field is five: firstly, the crude oil associated gas contains low-concentration hydrogen sulfide which is easy to cause poisoning of collection and transportation station workers; secondly, the sulfur-containing associated gas is directly combusted, condensate is easy to cause pipeline blockage, and the product sulfur dioxide is easy to cause atmospheric environmental pollution; thirdly, the crude oil well site and the sites are dispersed, the unorganized discharge points are more in the gathering and transportation process, and the centralized desulfurization treatment of the sulfur-containing associated gas is difficult; fourthly, the associated gas quantity of the oil field is small, the content of hydrogen sulfide is low, the requirement of the continuity work of the traditional natural gas desulfurization tower treatment device is difficult to meet, the spontaneous combustion risk exists in sulfur deposition, and the construction cost is high; fifthly, coal-fired and oil-fired boilers are gradually eliminated in the process of oil field clean production and construction, a large amount of popularization and application of the gas-fired boilers make supply of crude oil associated gas be in short supply, and a large amount of resources are wasted due to the traditional emptying combustion mode of the sulfur-containing associated gas.
Disclosure of Invention
The invention provides an in-situ purification treatment system and method for a direct supply gas boiler for low-sulfur-content oilfield associated gas, and aims to provide an oilfield associated gas purification treatment system and method which have the advantages that the micro-gas content of a dispersed oil well is convenient to collect and does not pollute the environment, the resource utilization of the sulfur-containing associated gas is realized, and the gas source is free of hydrogen sulfide, combustion products are harmless and a gas supply pipeline is free of condensate when the direct supply gas boiler is directly supplied.
In order to achieve the purpose, the invention adopts the technical scheme that:
an in-situ purification treatment system of a low-sulfur-content oilfield associated gas direct-supply gas boiler comprises an energy storage and pressure stabilization device, an atomization and trapping device, a condensation and liquid removal device, a drying and filtering device and a liquid phase recovery device; the energy storage pressure stabilizing device, the atomization trapping device, the condensation liquid removing device and the drying and filtering device are sequentially connected from front to back, and the liquid phase recovery device is respectively connected with the energy storage pressure stabilizing device, the atomization trapping device and the condensation liquid removing device.
The energy storage pressure stabilizer comprises an energy storage pressure stabilizer shell, an elastic isolation balance layer and a first liquid discharge funnel, wherein the elastic isolation balance layer is horizontally arranged in the energy storage pressure stabilizer shell and divides the energy storage pressure stabilizer shell into an upper cavity and a lower cavity, the upper part of the energy storage pressure stabilizer shell is a liquid storage cavity, the lower part of the energy storage pressure stabilizer shell is a gas storage cavity, the energy storage pressure stabilizer shell is provided with a liquid inlet, an air inlet, a liquid outlet, a gas outlet and a liquid discharge port, the liquid inlet and the liquid outlet are arranged on the side wall of the liquid storage cavity, the air inlet and the gas outlet are arranged on the side wall of the gas storage cavity, the liquid inlet is connected with a desulfurizing agent liquid supply source at the front end, the air inlet is connected with a sulfur-containing; the first drainage funnel is arranged at the bottom of the gas storage cavity; the liquid outlet is arranged on the lower surface of the shell of the energy storage and pressure stabilization device.
The energy storage and pressure stabilization device also comprises an air delivery pump, an infusion pump, an electric liquid discharge valve, an electric infusion valve, an electric air delivery valve and a pressure sensor; an air inlet of the energy storage and pressure stabilization device is connected with a sulfur-containing associated gas supply source at the front end through an air transmission pump; the liquid inlet is connected with a liquid supply source of a desulfurizing agent at the front end through a liquid conveying pump; the liquid outlet is connected with a liquid phase recovery device through an electric liquid discharge valve; the air outlet is connected with the atomization trapping device through an electric air delivery valve; the liquid outlet is connected with the atomization trapping device through an electric infusion valve; the pressure sensor is arranged on an elastic isolating balancing layer 15.
The atomization capturing device comprises an atomization capturing device shell, a second liquid discharge funnel and an atomization mechanism; the upper bottom surface of the atomization capturing device shell is provided with an air inlet and an air outlet, the lower upper bottom surface of the atomization capturing device shell is provided with a liquid outlet, the air inlet is connected with the atomization capturing device shell, the air outlet is connected with a condensation liquid removing device, and the liquid outlet is connected with a liquid phase recovery device; the atomization mechanism is connected in the atomization capturing device shell, and the upper end of the atomization mechanism extends out of the atomization capturing device shell and is connected with the energy storage and pressure stabilization device; and the second liquid discharge funnel is connected to the lower bottom surface in the shell of the atomization trapping device.
The condensation liquid removing device comprises a condensation liquid removing device shell, a radiating pipe, a compressor, a throttle valve, a cooling pipe, a flow guide partition plate and a third liquid discharge funnel; the diversion baffle is connected in the shell of the condensation liquid removing device and divides the inner cavity of the shell of the condensation liquid removing device into an upper cavity and a lower cavity, and the upper cavity is a heat dissipation cavity and a condensation cavity; the heat dissipation pipe and the compressor are arranged in the heat dissipation cavity, the cooling pipe and the throttle valve are arranged in the condensation cavity, and two ends of the heat dissipation pipe and the cooling pipe respectively penetrate through the flow guide partition plate and are connected through the compressor and the throttle valve; the third liquid discharge funnel is connected to the bottom of the condensation cavity, and a condensation liquid discharge port is formed in the bottom surface of the shell of the condensation liquid removal device and is connected with the liquid phase recovery device; a first gas phase inlet and a first gas phase outlet are formed in the side wall of a shell of the condensation liquid removing device of the condensation cavity, the first gas phase inlet is connected with the atomization and trapping device, and the first gas phase outlet is connected with the drying and filtering device.
The diversion baffle is horizontally connected in the shell of the condensation liquid removal device, the diversion baffle also comprises a vertical baffle, the vertical baffle is vertically connected with the transverse baffle, and the vertical baffle is arranged in the condensation cavity; the cooling pipe is S-shaped; and cooling media are filled in the radiating pipe and the cooling pipe.
The vertical partition plates are arranged in two pairs, the two pairs of vertical partition plates are respectively arranged at the top and the bottom of the condensation cavity, the two pairs of vertical partition plates are arranged in a staggered mode, and the cooling pipes are arranged between the two pairs of vertical partition plates in a staggered mode.
The drying and filtering device comprises a drying and filtering device shell, a drying mechanism and a molecular sieve; the molecular sieve is vertically connected in the drying and filtering device shell, the molecular sieve divides the inner cavity of the drying and filtering device shell into a drying cavity and an air collecting cavity, and the drying mechanism is vertically connected in the drying cavity; the upper end and the lower end of the drying mechanism are respectively connected with the upper bottom surface and the lower bottom surface of the shell of the drying and filtering device; a second gas phase inlet is formed in the side wall, located on the drying cavity, of the drying and filtering device shell, and the second gas phase inlet is connected with the condensation liquid removal device; and a second gas phase outlet is formed in the side wall of the drying and filtering device shell positioned in the gas collection cavity and is connected with an external gas boiler.
The liquid phase recovery device comprises a liquid phase recovery device shell and two baffles with different heights; the side wall of the shell of the liquid phase recovery device is provided with a liquid inlet, and the lower bottom surface of the shell of the liquid phase recovery device is provided with two liquid outlets and an oil phase outlet; the two baffles with different heights are vertically and uniformly connected to the inner bottom surface of the liquid phase recovery device shell, a gap is reserved between the upper end surface of the high baffle and the upper bottom surface of the liquid phase recovery device shell, and the high baffle is close to the liquid inlet; a first liquid outlet is formed in the bottom surface of the inner cavity between the high baffle and the liquid inlet, a second liquid outlet is formed in the bottom surface of the inner cavity between the high baffle and the low baffle, and an oil phase outlet is formed in the bottom surface of the inner cavity between the low baffle and the side wall, far away from the liquid inlet, of the phase recovery device shell.
An in-situ purification treatment method for a direct supply gas boiler of associated gas of a low-sulfur oil field comprises the following steps
The method comprises the following steps: energy storage and voltage stabilization
A sulfur-containing associated gas supply source and a desulfurizer supply liquid source respectively enter a gas storage cavity and a liquid storage cavity of the energy storage pressure stabilizing device through a gas inlet and a liquid inlet of the energy storage pressure stabilizing device, micro-gas-quantity sulfur-containing associated gas is intermittently collected, the sulfur-containing associated gas and the desulfurizer are stably output to an atomization and trapping device when the energy storage pressure stabilizing device is in a temporary high-pressure state, and the sulfur-containing associated gas and the desulfurizer falling into the bottom of the gas storage cavity are discharged into a liquid phase recovery device for treatment through a liquid outlet on the bottom surface of the energy storage pressure stabilizing;
step two: atomization and trapping
Carrying out mist bath chelation treatment on the sulfur-containing associated gas and the desulfurizer conveyed in the step one by the atomization and trapping device, enabling the treated gas to enter a condensation and liquid removal device, and discharging the desulfurization associated gas and liquid falling into the bottom of the atomization and trapping device into a liquid phase recovery device for treatment through a liquid discharge port on the bottom surface of the atomization and trapping device;
step three: condensed liquid removing agent
The gas conveyed in the second step is condensed by the condensation liquid removing device, the gas-liquid phase group associated with desulfurization is separated out, falls into a liquid outlet at the lower part of the condensation liquid removing device and is discharged into a liquid phase recovery device for treatment, and the gas in the condensation liquid removing device is discharged into a drying and filtering device;
step four: dry filtration and liquid phase recovery
The drying and filtering device carries out drying and filtering treatment and gas accumulation on the gas conveyed in the step three, and then the gas is input into a gas boiler of a crude oil gathering and transportation station; and the liquid phase of the desulfurized associated gas entering the liquid phase recovery device is further separated by the liquid phase recovery device, the desulfurized product and the water phase are discharged and recovered by a first liquid outlet and a second liquid outlet of the liquid phase recovery device, and the oil phase is recovered by an oil outlet to complete the in-situ purification treatment of the low-sulfur oil field associated gas.
Has the advantages that:
(1) the device closed-loop feedback control is realized through the energy storage pressure stabilizing device, the atomization and collection device, the refrigerant liquid removing device, the pressure rise and fall of associated gas in the drying and filtering device and the real-time signal change of the liquid level of a liquid discharge funnel at the bottom of the energy storage pressure stabilizing device, the atomization and collection device and the refrigerant liquid removing device.
(2) The invention solves the problems of large difficulty in centralized collection of micro-gas-content sulfur-containing associated gas of a dispersed oil well and easy atmospheric pollution and poisoning of peripheral personnel caused by emptying and burning, compared with the traditional natural gas desulfurization tower treatment device, the device is not limited by large natural gas amount and continuous operation conditions, realizes resource utilization of the sulfur-containing associated gas, and ensures that a gas source has no hydrogen sulfide, combustion products have no harm and an air supply pipeline has no condensate when the device is directly supplied to a gas boiler.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to clearly understand the technical solutions of the present invention and to implement the technical solutions according to the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of an energy storage and pressure stabilization device according to the present invention;
FIG. 3 is a schematic structural diagram of a refrigerant liquid removal device according to the present invention;
FIG. 4 is a schematic view of a drying and filtering apparatus according to the present invention;
FIG. 5 is a schematic view of the liquid phase recovery apparatus according to the present invention;
fig. 6 is a schematic structural view of the atomization trapping device of the present invention.
In the figure: 1-energy storage voltage stabilizer; 2-an atomization trapping device; 3-a condensation liquid removal device; 4-drying and filtering the device; 5-a liquid phase recovery unit; 6-an infusion pump; 7-air delivery pump; 8-electric drain valve; 9-electric infusion valve; 10-electric gas delivery valve; 11-an electric exhaust valve; 12-a liquid storage cavity; 13-gas storage cavity; 14-a first drainage funnel; 15-an elastic isolating balancing layer; 16-a heat dissipation cavity; 17-a compressor; 18-a flow-guiding partition plate; 19-a condensation chamber; 20-a throttle valve; 21-a cooling pipe; 22-a second drainage funnel; 23-a drying mechanism; 24-a molecular sieve; 25-a gas collection cavity; 26-a drying chamber; 27-a first gas phase inlet; 28-a first gas phase outlet; 29-a third drainage funnel; 30-radiating pipes; 31-an atomizing capture device housing; 32-an energy storage and voltage stabilization device shell; 33-an atomizing mechanism; 34-a condensate removal device housing; 35-a condensate drain port; 36-dry filtration device housing; 37-a second gas phase inlet; 38-a second gas phase outlet; 39-liquid phase recovery unit housing; 40-baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the in-situ purification treatment system of the associated gas direct-supply gas boiler of the low-sulfur oil field shown in fig. 1-6 comprises an energy storage and pressure stabilization device 1, an atomization and capture device 2, a condensation and liquid removal device 3, a drying and filtering device 4 and a liquid phase recovery device 5; the energy storage pressure stabilizing device 1, the atomization trapping device 2, the condensation liquid removing device 3 and the drying and filtering device 4 are sequentially connected from front to back, and the liquid phase recovery device 5 is respectively connected with the energy storage pressure stabilizing device 1, the atomization trapping device 2 and the condensation liquid removing device 3.
During the in-service use, contain sulphur associated gas air supply source and desulfurizer feed liquid source and get into energy storage voltage regulator device 1's gas storage chamber 13 and liquid storage chamber 12 through energy storage voltage regulator device 1's air inlet and inlet respectively, little gas volume contains sulphur associated gas is collected to the intermittent type, when waiting that energy storage voltage regulator device 1 is in interim high-pressure state, stably exports sulphur associated gas and desulfurizer to atomizing entrapment device 2, falls into the desulfurization associated gas-liquid of gas storage chamber 13 bottom and passes through the leakage fluid dram of energy storage voltage regulator device 1 bottom surface, discharges into liquid phase recovery unit 5 and handles. And (3) carrying out mist bath chelation treatment on the sulfur-containing associated gas and the desulfurizer conveyed in the step one by the atomization and capture device 2, enabling the treated gas to enter the condensation and liquid removal device 3, and discharging the desulfurization associated gas and liquid falling into the bottom of the atomization and capture device 2 into the liquid phase recovery device 5 for treatment through a liquid discharge port on the bottom surface of the atomization and capture device 2. The condensation liquid removing device 3 carries out condensation treatment with the gas that step two was carried, and desulfurization associated gas-liquid phase group goes out, falls into the 3 lower part leakage fluid dram of condensation liquid removing device, discharges into liquid phase recovery unit 5 and handles, and the gas in the condensation liquid removing device 3 discharges into dry filter equipment 4. The drying and filtering device 4 carries out drying and filtering treatment and gas accumulation on the gas conveyed in the step three, and then the gas is input into a gas boiler of a crude oil gathering and transportation station; and the gas phase and the liquid phase of the desulfurization associated gas entering the liquid phase recovery device 5 are further separated by the liquid phase recovery device 5, the desulfurization product and the water phase are discharged and recovered through a first liquid outlet and a second liquid outlet of the liquid phase recovery device 5, and the oil phase is recovered through an oil outlet to complete the in-situ purification treatment of the low-sulfur oil field associated gas.
The invention has convenient collection and no environmental pollution in the using process, realizes the resource recycling of the associated gas containing sulfur, and ensures that the gas source has no hydrogen sulfide, combustion products have no harm words and the gas supply pipeline has no condensate when the associated gas is directly supplied to the gas boiler.
Example two:
according to the in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler shown in fig. 1 and 2, the difference from the first embodiment is that: the energy storage and pressure stabilization device 1 comprises an energy storage and pressure stabilization device shell 32, an elastic isolation balance layer 15 and a first liquid discharge funnel 14, wherein the elastic isolation balance layer 15 is horizontally arranged in the energy storage and pressure stabilization device shell 32, the energy storage and pressure stabilization device shell 32 is divided into an upper cavity and a lower cavity, the upper part is a liquid storage cavity 12, the lower part is a gas storage cavity 13, the energy storage and pressure stabilization device shell 32 is provided with a liquid inlet, a gas inlet, a liquid outlet, a gas outlet and a liquid discharge port, the liquid inlet and the liquid outlet are arranged on the side wall of the liquid storage cavity 12, the gas inlet and the gas outlet are arranged on the side wall of the gas storage cavity 13, the liquid inlet is connected with a front end desulfurizing agent liquid supply source, the gas inlet is connected with a front end sulfur-containing associated gas; the first liquid discharge funnel 14 is arranged at the bottom of the gas storage cavity 13; the liquid outlet is arranged on the lower surface of the energy storage and pressure stabilization device shell 32.
Preferably, the energy storage and pressure stabilization device 1 further comprises a pressure sensor of an air delivery pump 7, an infusion pump 6, an electric liquid discharge valve 8, an electric infusion valve 9 and an electric air delivery valve 10; an air inlet of the energy storage and pressure stabilization device 1 is connected with a sulfur-containing associated gas supply source at the front end through an air transmission pump 7; the liquid inlet is connected with a liquid supply source of a desulfurizing agent at the front end through a liquid conveying pump 6; the liquid outlet is connected with a liquid phase recovery device 5 through an electric liquid discharge valve 8; the air outlet is connected with the atomization trapping device 2 through an electric air delivery valve 10; the liquid outlet is connected with the atomization capturing device 2 through an electric transfusion valve 9; the pressure sensor is arranged on the elastic isolation balance layer 15.
In actual use, the desulfurizer liquid supply tank in the prior art is connected with the liquid storage cavity 12 through a liquid conveying pipeline, and the liquid conveying pump 6 is arranged on the liquid conveying pipeline; the associated gas casing mouth of the oil well containing sulfur in the prior art is connected with the gas storage cavity 13 through a gas transmission pipeline, and the gas transmission pump 7 is arranged on the gas transmission pipeline.
The gas storage cavity 13 and the liquid storage cavity 12 are separated by an elastic isolation balance layer 15, a pressure sensor is arranged on the elastic isolation balance layer 15, and gas supply is stopped when the gas storage pressure reaches 0.5 Mpa.
The first liquid discharge funnel 14 is arranged at the bottom of the air storage cavity 13, and the top of the first liquid discharge funnel 14 is at a height 1/5 from the bottom of the air storage cavity 13.
The front end of the energy storage pressure stabilizing device 1 is respectively connected with a sulfur-containing associated gas supply source and a desulfurizer liquid supply source, micro-gas-quantity sulfur-containing associated gas can be intermittently collected, the pipeline is ensured to be in a temporary high-pressure state through accumulation energy storage, dynamic pressure is provided for system action, and the sulfur-containing associated gas and the desulfurizer are stably output to a next unit.
Example three:
according to the in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler shown in fig. 1 and 6, the difference from the first embodiment is that: the atomization capturing device 2 comprises an atomization capturing device shell 31, a second liquid discharge funnel 22 and an atomization mechanism 33; an air inlet and an air outlet are formed in the upper bottom surface of the atomization capturing device shell 31, a liquid outlet is formed in the lower upper bottom surface of the atomization capturing device shell 31, the air inlet is connected with the atomization capturing device shell 31, the air outlet is connected with the condensation liquid removing device 3, and the liquid outlet is connected with the liquid phase recovery device 5; the atomization mechanism 33 is connected in the atomization capturing device shell 31, and the upper end of the atomization mechanism 33 extends out of the atomization capturing device shell 31 and is connected with the energy storage and pressure stabilizing device 1; the second drain funnel 22 is connected to the lower bottom surface of the inside of the atomizing capture device housing 31.
During actual use, the arrangement of the atomization trapping device 2 ensures that equipment and facilities do not generate hydrogen sulfide stress corrosion cracking during oil-gas mixed transportation and treatment of the sulfur-containing oil well. The invention is not limited by the conditions of large natural gas flow and continuous operation, and the associated gas after the mist-bath chelation treatment by the atomization trapping device 2 is converged into the gathering and transportation pipeline through constant-pressure exhaust, so that the risk of stress corrosion cracking of hydrogen sulfide and personnel poisoning of downstream unorganized release points of the gathering and transportation pipeline is reduced during closed mixed transportation of oil gas.
Example four:
according to the in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler shown in fig. 1 and 3, the difference from the first embodiment is that: the condensation liquid-removing device 3 comprises a condensation liquid-removing device shell 34, a radiating pipe 30, a compressor 17, a throttle valve 20, a cooling pipe 21, a flow guide partition plate 18 and a third liquid discharge funnel 29; the diversion baffle 18 is connected in the condensation and liquid removal device shell 34 and divides the inner cavity of the condensation and liquid removal device shell 34 into an upper cavity and a lower cavity, and the upper cavity is a heat dissipation cavity 16 and a condensation cavity 19; the heat dissipation pipe 30 and the compressor 17 are arranged in the heat dissipation cavity 16, the cooling pipe 21 and the throttle valve 20 are arranged in the condensation cavity 19, and two ends of the heat dissipation pipe 30 and the cooling pipe 21 respectively pass through the diversion partition plate 18 and are connected through the compressor 17 and the throttle valve 20; the third liquid discharge funnel 29 is connected to the bottom of the condensation cavity 19, and a condensation liquid discharge port 35 is formed in the bottom surface of the condensation liquid removal device shell 34 and is connected with the liquid phase recovery device 5; the side wall of the condensation liquid removing device shell 34 of the condensation cavity 19 is provided with a first gas phase inlet 27 and a first gas phase outlet 28, the first gas phase inlet 27 is connected with the atomization capturing device 2, and the first gas phase outlet 28 is connected with the drying filtering device 4.
Preferably, the baffle plate 18 is horizontally connected in the shell 34 of the condensation and liquid removal device, the baffle plate 18 further comprises a vertical baffle plate, the vertical baffle plate is vertically connected with the transverse baffle plate, and the vertical baffle plate is arranged in the condensation cavity 19; the cooling pipe 21 is S-shaped; the radiating pipe 30 and the cooling pipe 21 are filled with a cooling medium.
Preferably, the vertical partition plates are arranged in two pairs, the two pairs of vertical partition plates are respectively arranged at the top and the bottom of the condensation cavity 19, the two pairs of vertical partition plates are arranged in a staggered manner, and the cooling pipes 21 are arranged between the two pairs of vertical partition plates in a staggered manner.
During the in-service use, cooling tube 21 sets up in condensation chamber 19, arranges into the calandria along "S type" water conservancy diversion passageway trend, cooling tube 30 sets up in the heat dissipation chamber 16, cooling tube 21 and the inside cooling medium that fills of cooling tube 30 just pass the water conservancy diversion baffle 18 that the level set up, water conservancy diversion baffle 18 is sealed to insulate against heat.
The outer wall of the condensation cavity 19 is subjected to heat insulation and sealing treatment, and throttling, pressure reduction and heat absorption are performed. The outer wall of the heat dissipation cavity 16 is subjected to heat dissipation treatment, the compression is boosted to release heat, a cooling medium passes through the cooling pipe 21 and the heat dissipation pipe 30 to circulate, and the desulfurization associated gas-liquid phase group in the condensation cavity 19 is analyzed.
The first gas phase outlet 28 is connected to the drying and filtering device 4. In practical use, the electric exhaust valve 11 is connected between the first gas phase outlet 28 and the drying and filtering device 4, so that the control and the maintenance are convenient.
A third drainage funnel 29 is arranged at the bottom of the condensation chamber 19, the top of the third drainage funnel 29 is at a height 1/5 from the bottom of the condensation chamber 19, and the third drainage funnel 29 is connected with a liquid phase recovery device 5. In actual use, the electric drain valve 8 is arranged between the third drain funnel 29 and the liquid phase recovery device 5, so that the control and maintenance are convenient.
The vertical partition plates are uniformly and alternately arranged at the top and the bottom of the condensation cavity 19 to form an S-shaped flow guide channel, so that the migration path and the retention time of the desulfurized associated gas are prolonged, and the condensation contact area is increased. The height of 2/5 is apart from condensation chamber 19 bottom to the vertical baffle lower limb in top, and the setting of the vertical baffle in bottom is on condensation chamber 19 bottom 1/5 height and the top edge is apart from condensation chamber 19 top 1/5 height for get into the desulfurization associated gas-liquid phase component of condensation liquid trap 3 and can effectually appear.
Example five:
according to the in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler shown in fig. 1 and 4, the difference from the first embodiment is that: the drying and filtering device 4 comprises a drying and filtering device shell 36, a drying mechanism 23 and a molecular sieve 24; the molecular sieve 24 is vertically connected in the drying and filtering device shell 36, the molecular sieve 24 divides the inner cavity of the drying and filtering device shell 36 into two cavities, namely a drying cavity 26 and an air collecting cavity 25, and the drying mechanism 23 is vertically connected in the drying cavity 26; the upper end and the lower end of the drying mechanism 23 are respectively connected with the upper bottom surface and the lower bottom surface of the drying and filtering device shell 36; the drying and filtering device shell 36 is provided with a second gas phase inlet 37 on the side wall of the drying cavity 26, and the second gas phase inlet 37 is connected with the condensation liquid removing device 3; the drying and filtering device housing 36 is provided with a second gas phase outlet 38 on the side wall of the gas collecting chamber 25, and the second gas phase outlet 38 is connected with an external gas boiler.
When in actual use, the dry and purified associated gas is accumulated in the gas collecting cavity 25, and when the output pressure is more than or equal to 0.2Mpa, the dry and purified associated gas can be directly supplied to a gas-fired boiler of a crude oil gathering and transportation station.
The molecular sieve 24 separates the drying cavity 26 from the air collecting cavity 25, and the thickness of the molecular sieve 24 is not less than 10mm, so that certain bearing strength can be ensured.
The drying mechanism 23 is arranged in the drying cavity 26, the drying mechanism 23 is designed in a layered multi-air-passage mode, drying agents are filled in the air passages, and the particle size of the drying agents is determined according to the diameter of the air passages and is not less than 5mm at least.
In a specific application, the second gas phase outlet 38 is connected with the gas boiler through the electric exhaust valve 11, and the electric exhaust valve 11 is connected between the second gas phase inlet 37 and the drying and filtering device 4.
The drying and filtering device 4 adopts the technical scheme, so that the drying degree of the gas entering the drying and filtering device 4 is effectively ensured, and the gas entering the gas boiler is ensured to meet the technical requirements.
Example six:
according to the in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler shown in fig. 1 and 5, the difference from the first embodiment is that: the liquid phase recovery device 5 comprises a liquid phase recovery device shell 39 and two baffles 40 with different heights; a liquid inlet is formed in the side wall of the liquid phase recovery device shell 39, and two liquid outlets and an oil phase outlet are formed in the lower bottom surface of the liquid phase recovery device shell 39; the two baffles 40 with different heights are vertically and uniformly connected to the inner bottom surface of the liquid phase recovery device shell 39, a gap is reserved between the upper end surface of the high baffle 40 and the upper bottom surface of the liquid phase recovery device shell 39, and the high baffle 40 is close to the liquid inlet; a first liquid outlet is formed in the bottom surface of the inner cavity between the high baffle 40 and the liquid inlet, a second liquid outlet is formed in the bottom surface of the inner cavity between the high baffle 40 and the low baffle 40, and an oil phase outlet is formed in the bottom surface of the inner cavity between the low baffle 40 and the side wall, far away from the liquid inlet, of the phase recovery device shell 39.
During the in-service use, baffle 40 that two co-altitude that set up in liquid phase recovery unit 5 for the liquid that gets into in liquid phase recovery unit 5 has carried out further separation, and the liquid of different properties after the separation gets into next reuse after discharging respectively from different passageways.
Example seven:
an in-situ purification treatment method for a direct supply gas boiler of associated gas of a low-sulfur oil field comprises the following steps
The method comprises the following steps: energy storage and voltage stabilization
A sulfur-containing associated gas supply source and a desulfurizer liquid supply source respectively enter a gas storage cavity 13 and a liquid storage cavity 12 of the energy storage pressure stabilizing device 1 through a gas inlet and a liquid inlet of the energy storage pressure stabilizing device 1, micro-gas-quantity sulfur-containing associated gas is intermittently collected, when the energy storage pressure stabilizing device 1 is in a temporary high-pressure state, the sulfur-containing associated gas and the desulfurizer are stably output to an atomization and trapping device 2, and the desulfurization associated gas and liquid falling into the bottom of the gas storage cavity 13 are discharged into a liquid phase recovery device 5 through a liquid outlet on the bottom surface of the energy storage pressure stabilizing device 1 for treatment;
step two: atomization and trapping
Carrying out mist bath chelation treatment on the sulfur-containing associated gas and the desulfurizer conveyed in the step one by the atomization and capture device 2, enabling the treated gas to enter the condensation and liquid removal device 3, and discharging the desulfurization associated gas and liquid falling into the bottom of the atomization and capture device 2 into a liquid phase recovery device 5 for treatment through a liquid discharge port on the bottom surface of the atomization and capture device 2;
step three: condensed liquid removing agent
The condensation liquid removing device 3 carries out condensation treatment on the gas conveyed in the step two, the gas-liquid phase group of the desulfurization associated gas is separated out, falls into a liquid outlet at the lower part of the condensation liquid removing device 3 and is discharged into a liquid phase recovery device 5 for treatment, and the gas in the condensation liquid removing device 3 is discharged into a drying and filtering device 4;
step four: dry filtration and liquid phase recovery
The drying and filtering device 4 carries out drying and filtering treatment and gas accumulation on the gas conveyed in the step three, and then the gas is input into a gas boiler of a crude oil gathering and transportation station; and the gas phase and the liquid phase of the desulfurization associated gas entering the liquid phase recovery device 5 are further separated by the liquid phase recovery device 5, the desulfurization product and the water phase are discharged and recovered through a first liquid outlet and a second liquid outlet of the liquid phase recovery device 5, and the oil phase is recovered through an oil outlet to complete the in-situ purification treatment of the low-sulfur oil field associated gas.
After the low-sulfur oil field associated gas is subjected to in-situ purification treatment, the problems that the concentrated collection difficulty of the micro-gas sulfur-containing associated gas of a dispersed oil well is high, and atmospheric pollution and poisoning of surrounding personnel are easily caused by emptying and burning are solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
In the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
The foregoing is illustrative of the preferred embodiments of the present invention, and the present invention is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
1. The in-situ purification treatment system of the low-sulfur-content oilfield associated gas direct-supply gas boiler is characterized in that: comprises an energy storage and pressure stabilization device (1), an atomization and trapping device (2), a condensation and liquid removal device (3), a drying and filtering device (4) and a liquid phase recovery device (5); the energy storage pressure stabilizing device (1), the atomization capturing device (2), the condensation liquid removing device (3) and the drying and filtering device (4) are sequentially connected from front to back, and the liquid phase recovery device (5) is respectively connected with the energy storage pressure stabilizing device (1), the atomization capturing device (2) and the condensation liquid removing device (3);
the energy storage and pressure stabilization device (1) comprises an energy storage and pressure stabilization device shell (32), an elastic isolation balance layer (15) and a first liquid discharge funnel (14), the elastic isolation balance layer (15) is horizontally arranged in the energy storage and pressure stabilization device shell (32), the energy storage and pressure stabilization device shell (32) is divided into an upper cavity and a lower cavity, the upper part is a liquid storage cavity (12), the lower part is a gas storage cavity (13), a liquid inlet, a gas inlet, a liquid outlet, a gas outlet and a liquid discharge port are arranged on the energy storage and pressure stabilization device shell (32), the liquid inlet and the liquid outlet are arranged on the side wall of the liquid storage cavity (12), the air inlet and the air outlet are arranged on the side wall of the air storage cavity (13), the liquid inlet is connected with a front end desulfurizer liquid supply source, the gas inlet is connected with a front end sulfur-containing associated gas supply source, and the liquid outlet and the gas outlet are respectively connected with the atomization trapping device (2); the first liquid discharge funnel (14) is arranged at the bottom of the gas storage cavity (13); the liquid outlet is arranged on the lower surface of the energy storage and pressure stabilization device shell (32);
the energy storage and pressure stabilization device (1) further comprises an air transmission pump (7), an infusion pump (6), an electric liquid discharge valve (8), an electric infusion valve (9), an electric air transmission valve (10) and a pressure sensor; an air inlet of the energy storage and pressure stabilization device (1) is connected with a sulfur-containing associated gas supply source at the front end through an air transmission pump (7); the liquid inlet is connected with a liquid supply source of a desulfurizing agent at the front end through an infusion pump (6); the liquid outlet is connected with a liquid phase recovery device (5) through an electric liquid discharge valve (8); the air outlet is connected with the atomization trapping device (2) through an electric air delivery valve (10); the liquid outlet is connected with the atomization trapping device (2) through an electric infusion valve (9); the pressure sensor is arranged on the elastic isolation balance layer (15).
2. The in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler according to claim 1, wherein the in-situ purification treatment system comprises: the atomization capturing device (2) comprises an atomization capturing device shell (31), a second liquid discharge funnel (22) and an atomization mechanism (33); an air inlet and an air outlet are formed in the upper top surface of the atomization capturing device shell (31), a liquid outlet is formed in the lower bottom surface of the atomization capturing device shell (31), the air inlet is connected with the atomization capturing device shell (31), the air outlet is connected with the condensation liquid removing device (3), and the liquid outlet is connected with the liquid phase recovery device (5); the atomization mechanism (33) is connected in the atomization capturing device shell (31), and the upper end of the atomization mechanism (33) extends out of the atomization capturing device shell (31) and is connected with the energy storage and pressure stabilization device (1); the second liquid discharge funnel (22) is connected to the inner lower bottom surface of the atomization capturing device shell (31).
3. The in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler according to claim 1, wherein the in-situ purification treatment system comprises: the condensation liquid-removing device (3) comprises a condensation liquid-removing device shell (34), a radiating pipe (30), a compressor (17), a throttle valve (20), a cooling pipe (21), a flow guide partition plate (18) and a third liquid discharge funnel (29); the flow guide partition plate (18) is connected in the shell (34) of the condensation and liquid removal device and divides the inner cavity of the shell (34) of the condensation and liquid removal device into an upper cavity and a lower cavity, wherein the upper cavity is a heat dissipation cavity (16) and the lower cavity is a condensation cavity (19); the heat dissipation pipe (30) and the compressor (17) are arranged in the heat dissipation cavity (16), the cooling pipe (21) and the throttle valve (20) are arranged in the condensation cavity (19), and two ends of the heat dissipation pipe (30) and the cooling pipe (21) respectively penetrate through the diversion partition plate (18) and are connected through the compressor (17) and the throttle valve (20); the third liquid discharge funnel (29) is connected to the bottom of the condensation cavity (19), a condensation liquid discharge port (35) is formed in the bottom surface of the condensation liquid removal device shell (34), and the condensation liquid discharge port (35) is connected with the liquid phase recovery device (5); a first gas phase inlet (27) and a first gas phase outlet (28) are formed in the side wall of a condensation liquid removal device shell (34) of the condensation cavity (19), the first gas phase inlet (27) is connected with the atomization capturing device (2), and the first gas phase outlet (28) is connected with the drying filtering device (4).
4. The in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler according to claim 3, wherein the in-situ purification treatment system comprises: the flow guide partition plate (18) is horizontally connected in the shell (34) of the condensation liquid removal device, the flow guide partition plate (18) further comprises a vertical partition plate, the vertical partition plate is vertically connected with the transverse partition plate, and the vertical partition plate is arranged in the condensation cavity (19); the cooling pipe (21) is S-shaped; and the radiating pipe (30) and the cooling pipe (21) are filled with cooling media.
5. The in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler according to claim 4, wherein the in-situ purification treatment system comprises: the vertical partition plates are arranged in two pairs, the two pairs of vertical partition plates are respectively arranged at the top and the bottom of the condensation cavity (19), the two pairs of vertical partition plates are arranged in a staggered mode, and the cooling pipes (21) are arranged between the two pairs of vertical partition plates in a staggered mode.
6. The in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler according to claim 1, wherein the in-situ purification treatment system comprises: the drying and filtering device (4) comprises a drying and filtering device shell (36), a drying mechanism (23) and a molecular sieve (24); the molecular sieve (24) is vertically connected in the drying and filtering device shell (36), the molecular sieve (24) divides the inner cavity of the drying and filtering device shell (36) into a drying cavity (26) and an air collecting cavity (25), and the drying mechanism (23) is vertically connected in the drying cavity (26); the upper end and the lower end of the drying mechanism (23) are respectively connected with the upper bottom surface and the lower bottom surface of the drying and filtering device shell (36); a second gas phase inlet (37) is formed in the side wall, located on the drying cavity (26), of the drying and filtering device shell (36), and the second gas phase inlet (37) is connected with the condensation liquid removal device (3); and a second gas phase outlet (38) is formed in the side wall, located on the gas collection cavity (25), of the drying and filtering device shell (36), and the second gas phase outlet (38) is connected with an external gas boiler.
7. The in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler according to claim 1, wherein the in-situ purification treatment system comprises: the liquid phase recovery device (5) comprises a liquid phase recovery device shell (39) and two baffles (40) with different heights; a liquid inlet is formed in the side wall of the liquid phase recovery device shell (39), and two liquid outlets and an oil phase outlet are formed in the lower bottom surface of the liquid phase recovery device shell (39); the two baffles (40) with different heights are vertically and uniformly connected to the inner bottom surface of the liquid phase recovery device shell (39), a gap is reserved between the upper end surface of the high baffle (40) and the upper bottom surface of the liquid phase recovery device shell (39), and the high baffle (40) is close to the liquid inlet; a first liquid outlet is formed in the bottom surface of the inner cavity between the high baffle (40) and the liquid inlet, a second liquid outlet is formed in the bottom surface of the inner cavity between the high baffle (40) and the low baffle (40), and an oil phase outlet is formed in the bottom surface of the inner cavity between the low baffle (40) and the side wall, far away from the liquid inlet, of the liquid phase recovery device shell (39).
8. The in-situ purification treatment method of the in-situ purification treatment system of the low-sulfur oilfield associated gas direct supply gas boiler, according to any one of claims 1 to 7, is characterized in that: comprises the following steps
The method comprises the following steps: energy storage and pressure stabilization;
a sulfur-containing associated gas supply source and a desulfurizer liquid supply source respectively enter a gas storage cavity (13) and a liquid storage cavity (12) of the energy storage pressure stabilizing device (1) through a gas inlet and a liquid inlet of the energy storage pressure stabilizing device (1), micro-gas-containing associated gas is intermittently collected, the sulfur-containing associated gas and the desulfurizer are stably output to an atomization and trapping device (2) when the energy storage pressure stabilizing device (1) is in a temporary high-pressure state, and the sulfur-containing associated gas and the desulfurizer falling into the bottom of the gas storage cavity (13) are discharged into a liquid phase recovery device (5) for treatment through a liquid outlet on the bottom surface of the energy storage pressure stabilizing device (1);
step two: atomizing and trapping;
carrying out mist bath chelation treatment on the sulfur-containing associated gas and the desulfurizer conveyed in the step one by the atomization and collection device (2), enabling the treated gas to enter the condensation and liquid removal device (3), and discharging the desulfurization associated gas and liquid falling into the bottom of the atomization and collection device (2) into a liquid phase recovery device (5) for treatment through a liquid discharge port on the bottom surface of the atomization and collection device (2);
step three: condensing and removing liquid;
the gas conveyed in the second step is condensed by the condensation liquid removing device (3), the gas-liquid phase group of the desulfurization associated gas is separated out, falls into a liquid outlet at the lower part of the condensation liquid removing device (3) and is discharged into the liquid phase recovery device (5) for treatment, and the gas in the condensation liquid removing device (3) is discharged into the drying and filtering device (4);
step four: drying, filtering and recovering liquid phase;
the drying and filtering device (4) carries out drying and filtering treatment and gas accumulation on the gas conveyed in the step three, and then the gas is input into a gas boiler of a crude oil gathering and transportation station; and (3) further separating the gas phase and the liquid phase of the desulfurization associated gas entering the liquid phase recovery device (5) through the liquid phase recovery device (5), discharging and recovering the desulfurization product and the water phase through a first liquid outlet and a second liquid outlet of the liquid phase recovery device (5), and recovering the oil phase through an oil outlet to complete the in-situ purification treatment of the low-sulfur oil field associated gas.
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| US8418457B2 (en) * | 2007-08-01 | 2013-04-16 | Energy & Enviromental Research Center Foundation | Application of microturbines to control emissions from associated gas |
| CN101760269A (en) * | 2009-12-17 | 2010-06-30 | 北京博奇电力科技有限公司 | Gasoline-associated gas comprehensively using system |
| CN102830630B (en) * | 2012-09-29 | 2016-01-20 | 河南理工大学 | Coal seam gas branch well mining control simulation device |
| CN206218559U (en) * | 2016-06-27 | 2017-06-06 | 北京鼎耀卓达科技发展有限公司 | A kind of dome-type tank gas low pressure recovery system |
| CN207987129U (en) * | 2018-03-20 | 2018-10-19 | 青岛北海石油装备技术有限公司 | A kind of novel oilfield associated gas Desulfovibrio alcohol system |
| CN209759402U (en) * | 2019-04-16 | 2019-12-10 | 四川迅升油气工程技术有限公司 | High-sulfur-content natural gas well safety liquid-removing desulfurization purification treatment device |
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