CN201386541Y - Wax removal and well cleanout device for gas heat carrier - Google Patents
Wax removal and well cleanout device for gas heat carrier Download PDFInfo
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- CN201386541Y CN201386541Y CN200920148100U CN200920148100U CN201386541Y CN 201386541 Y CN201386541 Y CN 201386541Y CN 200920148100 U CN200920148100 U CN 200920148100U CN 200920148100 U CN200920148100 U CN 200920148100U CN 201386541 Y CN201386541 Y CN 201386541Y
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Abstract
The utility model provides a wax removal and well cleanout device, which comprises a high-temperature gas generator as well as an air compressor, a high-pressure oil injection pump, a gas analysis system, another high-pressure oil injection pump, a vapourization water jet pump and a cooling water pump which are controlled by a controller. The high-temperature gas generator comprises a cylinder block, a cooling water tank, an air fuel mixer, a compressed air inlet, a cooling water inlet, a cooling water outlet, an igniter, a combustion chamber, a vapourization blending chamber and a vapourization water injection chamber; and a high-temperature gas spout is formed at the lower end of the vapourization blending chamber. The device can burn diesel oil and associated natural gas produced by an oilwell directly; and therefore, the utility model has the advantages of environmental protection, energy conservation, low running cost, convenient fuel source, small size, light weight, flexibility and convenience, and has good application prospect in wax removal and dirt cleaning of the oilwell.
Description
Technical field:
The utility model provides a kind of well washing apparatus of removing wax deposition, fouling in the oil recovery well casing.
Background technology:
In the oil exploitation process, often wax deposition, fouling is tapered pipe aperture in the oil recovery well casing, influences oil yield efficiency, and the well output of fluid is reduced; Simultaneously the oil pipe internal pressure increases, and adds the petroleum pump load, shortens oil pump application life.Existing wax removal technology mainly is to adopt mechanical paraffin removal and heating power wax removal, and mechanical paraffin removal is not thoroughly and influence oil well output.The heating power wax removal is generally used boiler heat hot carrier, as deep fat, hot water etc., brings heat energy into pit shaft, improves temperature in wellbore, makes its fusing point that surpasses wax, thereby wax is dissolved reach the purpose of wax removal.Utilize Hot oil too high as the heat transfer medium cost.Utilize boiler to produce hot water and inject the down-hole, its shortcoming is that the thermal efficiency is low, and the flushing fluid of usefulness is many, may damage the sensitiveness oil reservoir; This mode equipment is big, energy consumption is high, efficient is low, exhaust emission is big; The oil well task difficulty higher for the well pressure ratio is big; The difficulty that oil well and the heavy oil wells high to the content of wax, its wax removal are washed dirt work is bigger.
Along with the oil large scale mining, the conventional oil resource is fewer and feweri, and the cry that improves existing oil field efficient and exploitation viscous crude field is very strong, is badly in need of a kind of high efficiency, low running cost, does not injure the removing paraffin and washing well technology and equipment of oil reservoir.
Summary of the invention:
The utility model provides a kind of device for removing paraffin and washing well that is suitable for oil exploitation, be used for producing well wax removal, well-flushing, wash clean-out services such as dirt, de-plugging, pipeline purging, also be suitable for improving oil recovery and exploitation viscous crude, high waxy oil well use.
A kind of device for removing paraffin and washing well by gas heat carrier comprises high temperature gas generator and air compressor, high-pressure injection pump, gas analysis system, high-pressure injection pump, gasification water jet pump, the cooling water pump controlled by controller; High temperature gas generator comprises that cylinder block, bosh, air fuel blender, compressed air inlet, cooling water inlet, coolant outlet, igniter, combustion chamber, vaporization blending chamber, vaporization waterjet inlet, vaporization lower end, blending chamber are the high-temperature gas spout.
High temperature gas generator adopts the frame mode of overcoat bosh, igniter and air fuel blender are housed on the end cap of gas generator body upper end closed, air fuel blender upper end is provided with fuel inlet and air intake, the center is fuel inlet and external high-pressure injection pump or natural gas compressor, air intake is a two-way, the two-way air outlet slit intersects with oblique angle mode and fuel outlet at the fuel outlet bilateral, the gas generator body is made up of the combustion chamber on top and the vaporization blending chamber of bottom, vaporization blending chamber section is provided with the vaporization hole for water spraying, and vaporization lower end, blending chamber is the high-temperature gas spout.
Air fuel blender two-way air outlet slit is the 30-60 degree at the oblique angle of fuel outlet bilateral;
The length ratio of combustion chamber and vaporizer is 4: 1.
The external vaporization water jet pump of vaporization hole for water spraying.
This device comprise high temperature gas generator and by controller directly control and act on high temperature gas generator as lower device, comprise igniter, air fuel blender, natural gas compressor.
Device for removing paraffin and washing well by gas heat carrier, by central controller controls air compressor, high-pressure injection pump, analysis result according to gas analysis system, adjust air compressor, high-pressure injection pump, high-pressure hydraulic pump by central controller, guaranteeing this device operate as normal and injecting mine gas is optimal parameter.
Comprise high temperature gas generator in apparatus of the present invention, this high temperature gas generator adopts the cylinder of diesel engine theory of combustion and uses for reference its frame mode, the cancellation piston, become the continuous burning mode, produce high-temperature gas continuously and inject oil sets annular space, wax deposition and dirt are melted, fade away, reach the purpose that wax removal is washed dirt.
Combustion chamber and blending vaporizer adopt the integral type connected mode, and the combustion chamber diameter is 50-150mm, and blending vaporizer diameter is 50-120mm.
The air fuel blender of this high temperature gas generator adopts the bilateral oblique angle to blowing the hybrid mode of fuel, make fuel-supplying pressure exceed 3-5 doubly than air supply pressure, so that fuel press to change still can atomize when big good mixing and fully burning at well, be optimal parameter with the gas heat carrier of guaranteeing to inject the down-hole.
This high temperature gas generator adopts the cylinder of diesel engine theory of combustion and uses for reference its frame mode, can utilize the use for diesel engine high-pressure injection pump of standard, can reduce cost under the prerequisite that guarantees reliability.
The gas heat carrier temperature of device for removing paraffin and washing well by gas heat carrier can be pressed the removing paraffin and washing well technological requirement and be set or adjust between 100 ℃-350 ℃, the injection pressure of gas heat carrier can be pressed with well and be changed, and regulates automatically from 0-35MPa.
High temperature gas generator, can burning diesel oil and the association natural gas that produces of producing well, the part cooling water mixes and 100 ℃-350 ℃ the gas heat carrier of formation of vaporizing with high-temperature gas after the burning, inject oil sets annular space after gas analysis system detects, heat transfer medium is discharged from oil pipe by oil well pump together with the well liquid of output, the wax deposition and the high-melting-point dirt of heating and flushing oil inside pipe wall, be heated inside and outside the oil pipe, wax deposition and dirt are melted, and fade away, and reach the purpose that wax removal is washed dirt.Can wash while taking out, not influence oil well ordinary production and other operations.
Beneficial effect:
Because this device adopts the high-temperature gas heat transfer medium, has compared remarkable advantages with the existing machinery wax removal with the boiler heating power wax removal, do not influence oil well ordinary production and other operations.Not only oil reservoir is not had injury, and help improving recovery ratio.This device can burning diesel oil and the direct association natural gas of burning oil well generation, environmental protection and energy saving, and running cost is low, fuel source is convenient.Device volume is little, in light weight, flexible, and washing in paraffin removal from oil well has good application prospects aspect dirty.
Device for removing paraffin and washing well by gas heat carrier, this device have designed fuel oil, combustion gas two cover fuel system.The utilization of the natural gas of producing well association not only can be saved operating cost, and can reduce the discharging of greenhouse gases.
Device for removing paraffin and washing well can manufacture vehicular or skid-mounted type, and flexible Application is in the place that needs well-flushing.
Device for removing paraffin and washing well provided by the invention is compared with existing well-flushing boiler, the gas that injects the down-hole is not single steam, more not hot water, but the high-temperature gas of nitrogen, steam and carbon dioxide about 100 ℃-350 ℃, serviceability temperature not simultaneously its gas component ratio change to some extent, its ratio is about: nitrogen 35%-60%, steam 30%-60%, carbon dioxide 5%-10%.Because the mass dryness fraction of high-temperature gas is greater than 1, to the wax deposition on the oil well tube wall and heating of high-melting-point dirt and flushing; Steam can bring oil pipe big heat energy, quickens to be heated inside and outside the oil pipe, and wax deposition and dirt are melted fast, thereby improves wax removal, wash dirty efficient.This device can also combine with the clear anti-wax technique of chemistry, and employed chemical agent is dissolved in the vaporize water, together injects the down-hole through oil sets annular space with the high-temperature gas mixture body, improves clear wax control result.
This device has been compared remarkable advantages with the existing machinery wax removal with the boiler heating power wax removal, can save energy about 50%, raises the efficiency more than one times., be particularly suitable for having the place of strict restriction to use to volume and weight.
Description of drawings:
Fig. 1 is the device for removing paraffin and washing well by gas heat carrier schematic diagram
Fig. 2 is the structural representation of the high temperature gas generator among Fig. 1
Fig. 3 is the air fuel mixer structure key diagram among Fig. 2
The specific embodiment describes in conjunction with Fig. 1-3.
The specific embodiment
Example 1: Fig. 1 is the device for removing paraffin and washing well by gas heat carrier schematic diagram, comprises high temperature gas generator 1, igniter 2, controller 3, protection system 4, gas analysis system 5, air compressor 6, high-pressure injection pump 7, fuel tank 8, natural gas compressor 9, natural gas storage tank 10, gasification water jet pump 11, gasification water tank 12, cooling water pump 13, cooling water tank 14, high-temperature gas row geat 15.Because most producing wells all have the natural gas and the gathering system thereof of association, so this device has designed fuel oil, combustion gas two cover fuel system.
Fig. 2 is a high temperature gas generator, comprises gas generator body 1, igniter 2, air fuel blender 16, bosh 22, cooling water inlet 21, coolant outlet 20, combustion chamber 23, vaporizer 24, gasification hole for water spraying 19, combustion gas spout 15.This high temperature gas generator adopts the frame mode of overcoat bosh, not only can reduce fabricating cost greatly, and can improve cooling effect.
Fig. 3 air fuel blender comprises compressed air inlet 18, fuel inlet 17.This air fuel blender adopts the bilateral oblique angle to blowing the hybrid mode of fuel, make fuel-supplying pressure exceed 3-5 doubly than air supply pressure, so that fuel press to change still can atomize when big good mixing and fully burning at well, be optimal parameter with the gas heat carrier of guaranteeing to inject the down-hole.
Control air compressor 6 by controller during work, gasification water jet pump 11, cooling water pump 13 is started working earlier, control high-pressure injection pump 7 or natural gas compressor 9 work (selecting) then according to on-the-spot fuel, igniter 2 begins igniting simultaneously, fuel is fully burning in combustion chamber 23, its burning produces the nitrogen that reaches 2000 ℃ of high temperature, the carbon dioxide high-temperature gas, high-temperature gas after the vaporize water that enters the vaporization hole for water spraying through gasification water jet pump 11 and the burning mixes also endothermic gasification, after gas analysis system 5 detects, inject oil sets annular space by combustion gas spout 15, heat transfer medium is discharged from oil pipe by oil well pump together with the well liquid of output, the wax deposition and the high-melting-point dirt of heating and flushing oil inside pipe wall, be heated inside and outside the oil pipe, wax deposition and dirt are melted, and fade away, and reach the purpose that wax removal is washed dirt.Can wash while taking out, not influence oil well ordinary production and other operations.This device can also combine with the clear anti-wax technique of chemistry, and employed chemical agent is dissolved in the vaporize water, together injects the down-hole through oil sets annular space with the high-temperature gas mixture body, improves clear wax control result.The temperature of gas heat carrier can be set between 100 ℃-350 ℃ or adjust by the removing paraffin and washing well technological requirement, and the injection pressure of gas heat carrier can be pressed with well and be changed, and regulates automatically from 0-30MPa.
Example 2 is substantially with example 1
Device for removing paraffin and washing well by gas heat carrier explanation: device for removing paraffin and washing well by gas heat carrier; comprise high temperature gas generator 1; igniter 2; controller 3; protection system 4; gas analysis system 5; air compressor 6; high-pressure injection pump 7; fuel tank 8; natural gas compressor 9; natural gas storage tank 10; gasification water jet pump 11; gasification water tank 12; cooling water pump 13; cooling water tank 14; high-temperature gas row geat 15, bosh 22; cooling water inlet 21; coolant outlet 20; combustion chamber 23; vaporizer 24; gasification hole for water spraying 19; air fuel blender 16 comprises compressed air inlet 18; fuel inlet 17.This air fuel blender adopts bilateral 45 degree oblique angles to blowing the hybrid mode of fuel, and the fuel port diameter is (natural gas) 3mm, and the compressed air inlet diameter is the hole of 2 * 6mm, and vaporization hole for water spraying diameter is 2 * 1mm.The length ratio of combustion chamber and vaporizer is 4: 1, and the combustion chamber diameter is 100mm, and blending vaporizer diameter is 80mm.
Fuel-supplying pressure exceeds 3 times than air supply pressure, so that fuel press to change still can atomize when big good mixing and fully burning at well, is optimal parameter with the gas heat carrier of guaranteeing to inject the down-hole.
Control air compressor 6 by controller during work, gasification water jet pump 11, cooling water pump 13 is started working earlier, control natural gas compressor 9 work then, igniter 2 begins igniting simultaneously, fuel is fully burning in combustion chamber 23, its burning produces the nitrogen that reaches 2000 ℃ of high temperature, the carbon dioxide high-temperature gas, high-temperature gas after vaporize water and the burning mixes also endothermic gasification, after gas analysis system 5 detects, inject oil sets annular space by combustion gas spout 15, heat transfer medium is discharged from oil pipe by oil well pump together with the well liquid of output, the wax deposition and the high-melting-point dirt of heating and flushing oil inside pipe wall reach wax removal and wash dirty purpose.Said process is all realized by controller FEEDBACK CONTROL analytical system, high-pressure injection pump, gasification water jet pump, cooling water pump.The temperature of gas heat carrier is set in 230 ℃ by the removing paraffin and washing well technological requirement, and the injection pressure of gas heat carrier is pressed with well and changed, and regulates automatically from 0-35MPa.
Claims (5)
1. device for removing paraffin and washing well by gas heat carrier, comprise high temperature gas generator and the air compressor of controlling by controller, high-pressure injection pump, gas analysis system, high-pressure injection pump, the gasification water jet pump, cooling water pump, it is characterized in that described high temperature gas generator overcoat bosh, igniter and air fuel blender are housed on the end cap of high temperature gas generator body upper end closed, air fuel blender upper end is provided with fuel inlet and air intake, external high-pressure injection pump of fuel inlet or natural gas compressor, air intake is a two-way, the two-way air outlet slit intersects with oblique angle mode and fuel outlet at the fuel outlet bilateral, the gas generator body is made up of the combustion chamber on top and the vaporization blending chamber of bottom, vaporization blending chamber section is provided with the vaporization hole for water spraying, and vaporization lower end, blending chamber is the high-temperature gas spout.
2. a kind of device for removing paraffin and washing well by gas heat carrier as claimed in claim 1 is characterized in that described air fuel blender two-way air outlet slit is the 30-60 degree at the oblique angle of fuel outlet bilateral.
3. a kind of device for removing paraffin and washing well by gas heat carrier as claimed in claim 1, the length ratio that it is characterized in that described combustion chamber and vaporizer is 4: 1.
4. a kind of device for removing paraffin and washing well by gas heat carrier as claimed in claim 1 is characterized in that the external vaporization water jet pump of described vaporization hole for water spraying.
5. a kind of device for removing paraffin and washing well by gas heat carrier as claimed in claim 1 or 2 is characterized in that described air fuel blender two-way air outlet slit is 45 degree at the oblique angle of fuel outlet bilateral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920148100U CN201386541Y (en) | 2009-04-09 | 2009-04-09 | Wax removal and well cleanout device for gas heat carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920148100U CN201386541Y (en) | 2009-04-09 | 2009-04-09 | Wax removal and well cleanout device for gas heat carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386541Y true CN201386541Y (en) | 2010-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200920148100U Expired - Fee Related CN201386541Y (en) | 2009-04-09 | 2009-04-09 | Wax removal and well cleanout device for gas heat carrier |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858205B (en) * | 2009-04-09 | 2013-01-16 | 侯宇 | Device for removing paraffin and washing well by gas heat carrier |
| CN103291268A (en) * | 2013-05-08 | 2013-09-11 | 江苏大江石油科技有限公司 | Gas combined heat carrier generator system |
| CN104265250A (en) * | 2014-09-17 | 2015-01-07 | 中国海洋石油总公司 | Rapid induced flow completion pipe column for subsurface nitrogen making gas well |
| CN109882142A (en) * | 2019-04-12 | 2019-06-14 | 李柏峰 | A kind of thermal well flushing plugging releasing oil displacement method and device thereof |
-
2009
- 2009-04-09 CN CN200920148100U patent/CN201386541Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858205B (en) * | 2009-04-09 | 2013-01-16 | 侯宇 | Device for removing paraffin and washing well by gas heat carrier |
| CN103291268A (en) * | 2013-05-08 | 2013-09-11 | 江苏大江石油科技有限公司 | Gas combined heat carrier generator system |
| WO2014180067A1 (en) * | 2013-05-08 | 2014-11-13 | 江苏大江石油科技有限公司 | Gas-type combined heat carrier generation system |
| CN103291268B (en) * | 2013-05-08 | 2016-03-09 | 江苏大江石油科技有限公司 | Combustion gas composite heat carrier generator system |
| CN104265250A (en) * | 2014-09-17 | 2015-01-07 | 中国海洋石油总公司 | Rapid induced flow completion pipe column for subsurface nitrogen making gas well |
| CN109882142A (en) * | 2019-04-12 | 2019-06-14 | 李柏峰 | A kind of thermal well flushing plugging releasing oil displacement method and device thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20120409 |