CN210620733U - Device for treating odor of oil well overhead tank - Google Patents
Device for treating odor of oil well overhead tank Download PDFInfo
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- CN210620733U CN210620733U CN201921581252.2U CN201921581252U CN210620733U CN 210620733 U CN210620733 U CN 210620733U CN 201921581252 U CN201921581252 U CN 201921581252U CN 210620733 U CN210620733 U CN 210620733U
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Abstract
The utility model belongs to the technical field of the oil field environmental protection, concretely relates to device that oil well overhead tank foul gas was handled. The device mainly comprises a condenser, a demister, a gas conveying unit, a deodorization unit and a detection control unit, wherein the condenser, the demister, the gas conveying unit and the deodorization unit are sequentially connected, and the detection control unit controls the condenser, the deodorization unit and the gas conveying unit. The device adopts condensation and two-stage demisting processes, so that the content of water vapor in the inlet air of the deodorization tower is effectively reduced by more than 95%, and the effective rate of the deodorant is improved by more than 80%; the device adopts a high-capacity deodorant, has large desulfurization capacity, prolongs the treatment period by more than 60 months, and effectively reduces the labor intensity and the operation cost; the device not only solves the problem that the odor of the overhead tank affects the environment, but also realizes the resource utilization of the waste gas.
Description
Technical Field
The utility model belongs to the technical field of the oil field environmental protection, concretely relates to device that oil well overhead tank foul gas was handled.
Background
China has rich thick oil resources, and steam huff and puff is a main means for developing thick oil. In the process of heavy oil thermal recovery, sulfur-containing compounds in crude oil can generate a series of hydrothermal cracking reactions, hydrogen sulfide can be generated, and sulfur-containing compounds with foul smells such as rotten vegetables and garlic, such as methyl mercaptan and ethanethiol, can be generated, and the olfactory threshold of the hydrogen sulfide is 0.0067mg/m because the olfactory threshold of the methyl mercaptan and the ethanethiol is one order of magnitude lower than that of the hydrogen sulfide3And the olfaction thresholds of the methyl mercaptan and the ethyl mercaptan are 0.00073mg/m respectively3And 0.00083mg/m3. Most of the huff and puff wells in the victory oil field are produced by adopting an overhead tank oil pumping mode. The malodorous smell of mercaptans can be very easily smelled when the overhead tank is unloading oil. According to statistics, when 100 existing oil wells in an oil field are driven to produce overhead tanks and discharge oil after steam huff and puff, unpleasant odor exists around a well site, so that lives of oil extraction workers and surrounding residents are obviously affected, and partial oil wells are forced to stop due to severe odor. The foul smell of thermal production wells has become an important factor affecting the development of thick oil resources.
At present, two methods are mainly used for treating malodorous gas of thermal production wells such as methyl mercaptan, ethyl mercaptan and the like: (1) and (5) periodically washing the well by using strong alkali liquor. Although the method can eliminate the malodorous gas in the shaft, the method can only be used for shaft treatment before operation, has short period of validity and cannot be used for the treatment of normal production wells; (2) and continuously adding medicine into the well bore. The weakly oxidizing treating agent is added into the oil well casing pipe, and mercaptan is converted into tasteless or low-odor substances at the bottom of the well. Although the method can realize the treatment of the foul smell of the thermal production well, the method has the problems of large dosage, high treatment cost, high dosing labor intensity and the like. The dosage can reach 30-50 kg/d usually, the annual medicament cost is more than 10 ten thousand yuan, the dosing frequency is as high as 7-10 days/time, and the labor intensity is high. Therefore, there is an urgent need to develop a long-lasting treatment.
Disclosure of Invention
The utility model discloses to prior art not enough and provide a device that oil well overhead jar foul smell was handled. The utility model discloses utilize the gas transportation unit to take foul gas out from overhead tank deck, through dehumidification and deodorization unit in proper order, turn into odorless material with foul gas, use the residual gas recovery as the natural gas at last. The utility model discloses not only can eliminate the foul smell of oil well overhead tank, can prolong the processing cycle to more than 5 years by a wide margin moreover, effectively reduce the intensity of labour who frequently adds the medicine, practice thrift the treatment cost, still can avoid VOC (volatile organic hydrocarbon) to volatilize atmospheric pollution in addition.
The utility model discloses a device that oil well overhead tank foul smell was handled, the device mainly include condenser, defroster, gas conveying unit, deodorization unit and detection control unit. The condenser, the demister, the gas conveying unit and the deodorization unit are sequentially connected, and the detection control unit controls the condenser, the deodorization unit and the gas conveying unit.
The condenser mainly comprises a tube array, a header pipe and a condenser fan. The tube array is connected with the main pipe through welding, and an air outlet of the condenser fan is perpendicular to the tube array. The length of the tubes is 600-1200 mm, the number of the tubes is 20-30, the distance is 20-50 mm, the outer diameter is 10-30 mm, the wall thickness is 0.5-1.5 mm, and the material is copper. Fins are arranged outside the tubes, the width of each fin is 2-4 mm, and the fins are made of copper. The outer diameter of the header pipe is 50-90 mm, and the length of the header pipe is 600-1000 mm. The fan adopts an explosion-proof frequency conversion axial flowThe rated air quantity of the fan is 1000-2500 m3/h。
The demister mainly comprises a baffle plate, a wire mesh and a shell, wherein the baffle plate and the wire mesh are both positioned in the shell, and the wire mesh is positioned at a position 50-100mm right above the baffle plate. The height of the baffle plates is 200-300 mm, and the distance between the baffle plates is 10-30 mm. The baffle plate is made of polypropylene PP or stainless steel. The height of the screen mesh is 200-300 mm, and the diameter of the screen mesh is 0.10-0.28 mm. The shell is cylindrical and is made of stainless steel 304 or 316.
The gas conveying unit mainly comprises a conveying fan, a flowmeter and a pipeline, wherein the conveying fan is connected with the flowmeter through the pipeline. Air quantity of the fan is 5-10 m3And h, the exhaust pressure is 30KPa, and the fan is of a variable-frequency explosion-proof type. The flow range of the flowmeter is 0-15 m3H is used as the reference value. The pipeline is made of stainless steel 304 or 316, and the diameter is 50-80 mm.
The deodorization unit consists of a deodorization tower 1 and a deodorization tower 2, the structures of the two towers are the same, one of the towers is an operating tower, and the other tower is a standby tower.
The deodorization tower comprises tower body, supporting layer and filler, and the supporting layer is located the tower body inside, and the filler is located the supporting layer top.
Wherein the tower body is provided with an air inlet, a discharge opening, a charging opening, a sight glass and an air outlet. The air inlet is located the bottom of packed tower, and air inlet diameter is 80 ~ 100 mm. The discharge opening is located the air inlet top, and the lower edge of discharge opening is apart from 100 ~ 200mm on the air inlet, discharge opening diameter 300 ~ 500 mm. The charging opening is located under the gas outlet, and the upper edge of the charging opening is 100-200 mm away from the lower edge of the gas outlet, and the diameter of the discharging opening is 300-500 mm. The sight glass is located the upper portion of tower body, 100 ~ 200mm below the charging hole department.
The support layer consists of a support frame and a pore plate. The supporting frame is formed by welding channel steel into two concentric circles, and the outer concentric circle is welded with the inner wall of the tower body. The pore plate is a stainless steel stamping plate with the thickness of 3-5mm, round holes with the thickness of 2-2.5 mm are arranged on the pore plate, and the distance between the holes is 5-10 mm.
The height of the filler is 1200-1800 mm, the filler is a granular deodorant, and the diameter of deodorant granules is 3-5 mm. The deodorant is prepared by using active alumina as a carrier, soaking an oxidant solution, pressurizing, decompressing and drying. The deodorization capacity of the deodorant is 20-30%.
The detection control unit mainly comprises a hygrometer, a malodorous gas detector, a PLC (programmable logic controller), a frequency converter, an electric valve, a return fan and a one-way valve. Wherein, the hygrometer, the malodorous gas detector, the frequency converter, the electric valve and the return fan are respectively connected with the PLC. The hygrometer is installed at the outlet of the condenser. The inlet of the reflux fan is connected with the pipeline of the gas outlet of the deodorization tower through an electric valve, and the outlet of the reflux fan is connected with the gas inlet of the deodorization tower through a one-way valve. The adjusting range of the frequency converter is 0-50 Hz.
Compared with the prior art, the utility model have following advantage and beneficial effect:
(1) the device of the utility model adopts the forced wind power condensation and two-stage demisting process, effectively reduces the content of the water vapor in the air inlet of the deodorization tower by more than 95 percent, and improves the effective rate of the deodorant by more than 80 percent;
(2) the device of the utility model adopts a high-capacity deodorant, has large desulfurization capacity, prolongs the treatment period by more than 60 months, and effectively reduces the labor intensity and the operation cost;
(3) the device of the utility model not only solves the problem that the odor of the overhead tank affects the environment, but also realizes the resource utilization of the waste gas;
(4) the device of the utility model adopts two sets of deodorization towers, 1 is equipped with 1, can ensure the continuity of the deodorization process, and provides guarantee for the continuous production of the oil well.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
Example 1
The present invention will be further described with reference to fig. 1.
As shown in the attached figure 1, the device for treating the odor of the oil well overhead tank mainly comprises a condenser, a demister, a gas conveying unit, a deodorization unit and a detection control unit. The condenser, the demister, the gas conveying unit and the deodorization unit are sequentially connected, and the detection control unit controls the condenser, the deodorization unit and the gas conveying unit.
The condenser mainly comprises a tube array, a header pipe and a condenser fan. The tube array is connected with the main pipe through welding, and an air outlet of the condenser fan is perpendicular to the tube array. The length of the tubes is 600-1200 mm, the number of the tubes is 20-30, the distance is 20-50 mm, the outer diameter is 10-30 mm, the wall thickness is 0.5-1.5 mm, and the material is copper. Fins are arranged outside the tubes, the width of each fin is 2-4 mm, and the fins are made of copper. The outer diameter of the header pipe is 50-90 mm, and the length of the header pipe is 600-1000 mm. The fan adopts an explosion-proof frequency conversion axial flow fan, and the rated air quantity is 1000-2500 m3/h。
The demister mainly comprises a baffle plate, a wire mesh and a shell, wherein the baffle plate and the wire mesh are both positioned in the shell, and the wire mesh is positioned at a position 50-100mm right above the baffle plate. The height of the baffle plates is 200-300 mm, and the distance between the baffle plates is 10-30 mm. The baffle plate is made of polypropylene PP or stainless steel. The height of the screen mesh is 200-300 mm, and the diameter of the screen mesh is 0.10-0.28 mm. The shell is cylindrical and is made of stainless steel 304 or 316.
The gas conveying unit mainly comprises a conveying fan, a flowmeter and a pipeline, wherein the conveying fan is connected with the flowmeter through the pipeline. Air quantity of the fan is 5-10 m3And h, the exhaust pressure is 30KPa, and the fan is of a variable-frequency explosion-proof type. The flow range of the flowmeter is 0-15 m3H is used as the reference value. The pipeline is made of stainless steel 304 or 316, and the diameter is 50-80 mm.
The deodorization unit consists of a deodorization tower 1 and a deodorization tower 2, the structures of the two towers are the same, one of the towers is an operating tower, and the other tower is a standby tower.
The deodorization tower comprises tower body, supporting layer and filler, and the supporting layer is located the tower body inside, and the filler is located the supporting layer top.
Wherein the tower body is provided with an air inlet, a discharge opening, a charging opening, a sight glass and an air outlet. The air inlet is located the bottom of packed tower, and air inlet diameter is 80 ~ 100 mm. The discharge opening is located the air inlet top, and the lower edge of discharge opening is apart from 100 ~ 200mm on the air inlet, discharge opening diameter 300 ~ 500 mm. The charging opening is located under the gas outlet, and the upper edge of the charging opening is 100-200 mm away from the lower edge of the gas outlet, and the diameter of the discharging opening is 300-500 mm. The sight glass is located the upper portion of tower body, 100 ~ 200mm below the charging hole department.
The support layer consists of a support frame and a pore plate. The supporting frame is formed by welding channel steel into two concentric circles, and the outer concentric circle is welded with the inner wall of the tower body. The pore plate is a stainless steel stamping plate with the thickness of 3-5mm, round holes with the thickness of 2-2.5 mm are arranged on the pore plate, and the distance between the holes is 5-10 mm.
The height of the filler is 1200-1800 mm, the filler is a granular deodorant, and the diameter of deodorant granules is 3-5 mm. The deodorant is prepared by using active alumina as a carrier, soaking an oxidant solution, pressurizing, decompressing and drying. The deodorization capacity of the deodorant is 20-30%.
The detection control unit mainly comprises a hygrometer, a malodorous gas detector, a PLC (programmable logic controller), a frequency converter, an electric valve, a return fan and a one-way valve. Wherein, the hygrometer, the malodorous gas detector, the frequency converter, the electric valve and the return fan are respectively connected with the PLC. The hygrometer is installed at the outlet of the condenser. The inlet of the reflux fan is connected with the pipeline of the gas outlet of the deodorization tower through an electric valve, and the outlet of the reflux fan is connected with the gas inlet of the deodorization tower through a one-way valve. The adjusting range of the frequency converter is 0-50 Hz.
The device of the utility model adopts the forced wind power condensation and two-stage demisting process, effectively reduces the content of the water vapor in the air inlet of the deodorization tower by more than 95 percent, and improves the effective rate of the deodorant by more than 80 percent; the device of the utility model adopts a high-capacity deodorant, has large desulfurization capacity, prolongs the treatment period by more than 60 months, and effectively reduces the labor intensity and the operation cost; the device of the utility model not only solves the problem that the odor of the overhead tank affects the environment, but also realizes the resource utilization of the waste gas; the device of the utility model adopts two sets of deodorization towers, 1 is equipped with 1, can ensure the continuity of the deodorization process, and provides guarantee for the continuous production of the oil well.
Claims (10)
1. The device for treating the odor of the overhead tank of the oil well is characterized by mainly comprising a condenser, a demister, a gas conveying unit, a deodorizing unit and a detection control unit, wherein the condenser, the demister, the gas conveying unit and the deodorizing unit are sequentially connected, and the detection control unit controls the condenser, the deodorizing unit and the gas conveying unit.
2. The device for treating the odor of the overhead tank of the oil well according to claim 1, wherein the condenser mainly comprises a tube array, a header pipe and a condenser fan, the tube array is connected with the header pipe through welding, an air outlet of the condenser fan is perpendicular to the tube array, the length of the tube array is 600-1200 mm, the number of the tube array is 20-30, the distance between the tube array and the header pipe is 20-50 mm, the outer diameter of the tube array is 10-30 mm, the wall thickness of the tube array is 0.5-1.5 mm, and the material is copper; fins are arranged outside the tubes, the width of each fin is 2-4 mm, and the fins are made of copper; the outer diameter of the header pipe is 50-90 mm, and the length of the header pipe is 600-1000 mm; the fan adopts an explosion-proof frequency conversion axial flow fan, and the rated air quantity is 1000-2500 m3/h。
3. The device for treating the odor of the oil well overhead tank as claimed in claim 1 or 2, wherein the demister mainly comprises a baffle plate, a wire mesh and a shell, the baffle plate and the wire mesh are positioned in the shell, and the wire mesh is positioned at a position 50-100mm right above the baffle plate; the height of the baffle plates is 200-300 mm, and the distance between the baffle plates is 10-30 mm; the baffle plate is made of polypropylene PP or stainless steel; metal wires or engineering plastics with the height of the wire mesh being 200-300 mm and the diameter of the wire mesh being 0.10-0.28 mm; the shell is cylindrical and is made of stainless steel 304 or 316.
4. The device for treating the odor of the oil well overhead tank as claimed in claim 1 or 2, wherein the gas conveying unit mainly comprises a conveying fan, a flow meter and a pipeline, the conveying fan is connected with the flow meter through the pipeline, and the air volume of the fan is 5-10 m3The exhaust pressure is 30KPa, the fan is of a variable-frequency explosion-proof type, and the flow range of the flowmeter is 0-15 m3The material of the pipeline is 304 or 316 stainless steel, and the diameter is 50-80 mm.
5. The apparatus for treating the odor of the oil well overhead tank according to claim 1 or 2, wherein the deodorizing unit is composed of a deodorizing tower 1 and a deodorizing tower 2, the deodorizing tower 1 and the deodorizing tower 2 have the same structure, one of them is an operating tower, and the other is a standby tower.
6. The device for treating the odor of the oil well overhead tank as claimed in claim 5, wherein the deodorizing tower 1 and the deodorizing tower 2 are composed of a tower body, a supporting layer and a filler, the supporting layer is positioned in the tower body, and the filler is positioned above the supporting layer.
7. The device for treating the odor of the overhead tank of the oil well as the odor treatment tower of claim 6, wherein the tower body 1 and the odor removal tower 2 are provided with an air inlet, a discharge opening, a charging opening, a sight glass and an air outlet, the air inlet is positioned at the bottom of the filling tower, the diameter of the air inlet is 80-100 mm, the discharge opening is positioned above the air inlet, the lower edge of the discharge opening is 100-200 mm away from the upper edge of the air inlet, the diameter of the discharge opening is 300-500 mm, the charging opening is positioned under the air outlet, the upper edge of the charging opening is 100-200 mm away from the lower edge of the air outlet, and the sight glass is positioned at the upper part of.
8. The device for treating the odor of the overhead tank of the oil well according to claim 6, wherein the supporting layer comprises a supporting frame and a pore plate, the supporting frame is formed by welding channel steel into two concentric circles, the outer concentric circles are welded with the inner wall of the tower body, the pore plate is a stainless steel stamping plate with the thickness of 3-5mm, round holes with the thickness of 2-2.5 mm are arranged on the plate, and the distance between the holes is 5-10 mm.
9. The device for treating the odor of the oil well overhead tank as claimed in claim 6, wherein the height of the filler is 1200-1800 mm, the filler is a granular deodorant, the diameter of the deodorant granules is 3-5mm, the deodorant is prepared by soaking an oxidant solution in activated alumina as a carrier, pressurizing, decompressing and drying, and the deodorization capacity of the deodorant is 20-30%.
10. The device for treating the odor and the smell of the oil well overhead tank as claimed in claim 1 or 2, wherein the detection control unit mainly comprises a hygrometer, a smell detector, a PLC (programmable logic controller), a frequency converter, an electric valve, a return fan and a one-way valve, wherein the hygrometer, the smell detector, the frequency converter, the electric valve and the return fan are respectively connected with the PLC; the hygrometer is arranged at the outlet of the condenser; the inlet of the reflux fan is connected with the pipeline of the air outlet of the deodorization tower through an electric valve, and the outlet of the reflux fan is connected with the air inlet of the deodorization tower through a one-way valve; the adjusting range of the frequency converter is 0-50 Hz.
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| CN201921581252.2U CN210620733U (en) | 2019-09-20 | 2019-09-20 | Device for treating odor of oil well overhead tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467951A (en) * | 2019-09-20 | 2019-11-19 | 中国石油化工股份有限公司 | A kind of device and method of oil well elevated tank foul odour processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467951A (en) * | 2019-09-20 | 2019-11-19 | 中国石油化工股份有限公司 | A kind of device and method of oil well elevated tank foul odour processing |
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