CN201218093Y - Thick oil borehole viscosity-reduction oil-extraction heating apparatus - Google Patents
Thick oil borehole viscosity-reduction oil-extraction heating apparatus Download PDFInfo
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- CN201218093Y CN201218093Y CNU2008200239968U CN200820023996U CN201218093Y CN 201218093 Y CN201218093 Y CN 201218093Y CN U2008200239968 U CNU2008200239968 U CN U2008200239968U CN 200820023996 U CN200820023996 U CN 200820023996U CN 201218093 Y CN201218093 Y CN 201218093Y
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- hollow rod
- instlated tubular
- insulated pipe
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Abstract
The utility model relates to a vicious oil pitshaft viscosity-reducing, oil recovering and heating device used in the technical field of crude oil thermal recovery in an oil field. The device adopts the technical proposal that an annular hollow cavity is formed after an insulated pipe is sleeved in a hollow sucker rod, the lower end part of the hollow sucker rod is communicated with the lower end port of the insulated pipe after being blocked, and the insulated pipe and the upper end port of the annular hollow cavity in a hollow rod are respectively connected with external circulation pipelines. The utility model has the advantages that the hot water circulation of a tube lever in a heavy oil well replaces the electric cable heating technology used at present, the energy and the equipment investment are saved, the disadvantages of the inaccurate measurement of the oil production, which is caused by doping hot water in heavy oil for oil production, are reduced, and the high cost of the chemical viscosity reduction and the chemical oil recovery as well as the pressure to the environmental pollution are avoided. Through the annular and hollow clearance properly left between the hollow sucker rod and the insulated pipe, the technology has the advantages that the independent heating system with a closed loop is formed, the energy is saved, the operation is simple, the use is safe and reliable, and the service life is long.
Description
Technical field
The utility model relates to a kind of thick oil well bore viscosity reduction oil recovery heating apparatus in the crude oil thermal recovery technical field.
Background technology
At present, adopt conventional oil pumping technology in the machine-pumped oil well of oil field Gao Ning, viscous crude, had a strong impact on liquid outlet quantity.In order to address this problem, each Oilfield using different thermal recovery technology, but effect is all undesirable.As: the application of electric heating tube bar is to put into the heating cable that single-core cable constitutes electric loop in the hollow rod, utilizes variable-frequency power sources, direct current pulse power source, the power supply of three-phase Power Regulation power supply respectively, this technology power consumption height, cost height.The admixture hot water technique is directly hot water to be injected down-hole oil tube by hollow rod in the hollow stem, though use easy, but easily fouling in the hollow stem, the water that adds flows out together with oil, can't calculate oil mass accurately, cause the load of dehydration to gathering system, and power consumption height, long flow path, input cost are big.What add the employing of chemical agent viscosity reduction method is to add the chemical agent viscosity reduction in down-hole casing and oil pipe annular space, cause the oil recovery cost of production to improve greatly, and adopt individual well dosing pump filling medicament to be subjected to the high restriction of casing pressure, be not durable, workload is big, the maintenance cost height, and untimely the causing of dosing stopped well, be difficult to resume production, and seriously polluted to environment.
The utility model content
The purpose of this utility model is exactly the defective that exists at prior art, provides that a kind of apparatus structure is simple, the thick oil well bore viscosity reduction oil recovery heating apparatus of water circulation use, energy conservation and water resource, reduction thermal recovery cost.
Its technical scheme is: form toroidal cavity between being set with behind the instlated tubular in hollow rod, lower port with instlated tubular after the bottom shutoff of hollow rod connects, and instlated tubular is connected with external pipeloop respectively with the upper port that the interior ring of hollow rod forms cavity.
The further improvement project of such scheme comprises: the linkage that is connected with the top sealing in the hollow rod upper end, linkage is provided with the interface that connects with instlated tubular outer ring cavity upper port, and instlated tubular is directly drawn the back separately from linkage and is connected with external pipeloop.Described external pipeloop be connected on circulation pump and the heating furnace into and out of pipeline, heating furnace comprises a kind of of combustion gas, fuel oil, fire coal or electric furnace.On pipeloop, also be connected with aqua storage tank and strainer.
The utility model and several prior art compare and have following effect: the pipe bar hot water circuit in heavy oil wells, replace the cable heating technique of using at present, and saved the energy and equipment input; Reduced the drawback of in viscous crude, mixing the hot water oil recovery and causing oil production accurately to measure; Avoided the pressure of chemical viscosity reduction cost for oil production height and environmental pollution.Present technique forms the independent heating system of closed circulation by leaving suitable annular clearance between hollow rod and the instlated tubular, and energy conservation is simple to operate, safe and reliable, long service life.
Description of drawings
Accompanying drawing 1 is a kind of overall structure schematic diagram that is applied in the embodiment on the oil pumper; Accompanying drawing 2 is structure for amplifying schematic diagrames of dotted portion among Fig. 1.
The specific embodiment:
With reference to accompanying drawing 1, oil pumper 1 is connected on this device by wire rope 2, polished rod clamp 3, solid polished rod 4.Linkage 8 one sides of this device are drawn into water interface 5 and water outlet interface 6 (being the external pipeloop interface in claims), wherein water outlet interface 6 connects heating furnace 14 to aqua storage tank, by the circulation pump 15 (draw 6 among the figure, can satisfy 1 mouthful to many mouthfuls oil wells simultaneously and use) that is connected on the aqua storage tank hot water is delivered to into water interface 5.Directly interior with being sleeved on hollow rod 9 instlated tubular 17 (with reference to accompanying drawing 2) of water inlet interface 5 is connected.Instlated tubular 17 reaches hollow rod 9 bottoms after hollow rod 9 runs through bottom surface wellhead assembly 10.Be connected on the oil well pump 13 by real core sucker rod 12 in hollow rod 9 bottoms.Also linking oil pipe 11 below the wellhead assembly 10.
With reference to accompanying drawing 2, water outlet interface 6 connects by the toroidal cavity between linkage 8 and instlated tubular 17 and the hollow rod 9, be provided with seal section 7 at an upper portion thereof, the bottom cavity of the lower port of instlated tubular 17 and hollow rod 9 connects, hot water enters the oil well bottom from instlated tubular 17 like this, return the water outlet interface 6 on top again by the toroidal cavity between hollow rod 9 and the instlated tubular 17, form the circulation canal of sealing.
The course of work of this device is: behind the hollow rod under the instlated tubular lower going-into-well, by in the return process of annular chamber the viscous crude of hollow rod external oil pipe being implemented heating, viscous crude is thinning through heating, thereby increases its flowability at hot water.When sucker rod moves up and down, the hot water of uniform temperature also in circular flow up and down, heat recycling once more by heating furnace, make its temperature remain on constant parameter by the hot water that returns simultaneously, guarantee the dilution temperature of viscous crude, thereby guaranteed its flowability.Because what this technology adopted is not Hybrid Heating of profit, increased the accuracy of oil pump capacity metering.Seen extraordinary volume increase joint Zhi Xiaoguo by The field.If the hot water that uses is through (can certainly use other heat-conducting medium) after the purified treatment on this basis, can prolong the application life of pipeline and sucker rod more, save production cost.
Claims (3)
1, a kind of thick oil well bore viscosity reduction oil recovery heating apparatus, it is characterized in that: form toroidal cavity between in hollow rod, being set with behind the instlated tubular, lower port with instlated tubular after the bottom shutoff of hollow rod connects, and the upper port of instlated tubular and hollow rod inner annular cavity is connected with external pipeloop respectively.
2, thick oil well bore viscosity reduction oil recovery heating apparatus according to claim 1, it is characterized in that: the linkage that is connected with the top sealing in the hollow rod upper end, linkage is provided with the interface that connects with instlated tubular outer ring cavity upper port, and instlated tubular is directly drawn the back separately from linkage and is connected with external pipeloop.
3, thick oil well bore viscosity reduction oil recovery heating apparatus according to claim 1 and 2 is characterized in that: described external pipeloop be connected on circulation pump and the heating furnace into and out of pipeline, heating furnace comprises a kind of of combustion gas, fuel oil, fire coal or electric furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200239968U CN201218093Y (en) | 2008-06-12 | 2008-06-12 | Thick oil borehole viscosity-reduction oil-extraction heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200239968U CN201218093Y (en) | 2008-06-12 | 2008-06-12 | Thick oil borehole viscosity-reduction oil-extraction heating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218093Y true CN201218093Y (en) | 2009-04-08 |
Family
ID=40540929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200239968U Expired - Lifetime CN201218093Y (en) | 2008-06-12 | 2008-06-12 | Thick oil borehole viscosity-reduction oil-extraction heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218093Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352744A (en) * | 2011-10-31 | 2012-02-15 | 徐龙欣 | Circulating hot water heavy oil thermal recovery system for ultra-deep well and process thereof |
| CN102434138A (en) * | 2011-10-14 | 2012-05-02 | 西南石油大学 | Hot water injection circulation viscosity reduction system for producing ultra-deep ultra-heavy oil and application method thereof |
| CN104818966A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Recovery well |
| CN106121588A (en) * | 2016-08-25 | 2016-11-16 | 山东创佳石油机械制造有限公司 | A kind of heavy oil wells hot water closed cycle adds heat drop adhesive-assembly and puts |
-
2008
- 2008-06-12 CN CNU2008200239968U patent/CN201218093Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434138A (en) * | 2011-10-14 | 2012-05-02 | 西南石油大学 | Hot water injection circulation viscosity reduction system for producing ultra-deep ultra-heavy oil and application method thereof |
| CN102352744A (en) * | 2011-10-31 | 2012-02-15 | 徐龙欣 | Circulating hot water heavy oil thermal recovery system for ultra-deep well and process thereof |
| CN104818966A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Recovery well |
| CN106121588A (en) * | 2016-08-25 | 2016-11-16 | 山东创佳石油机械制造有限公司 | A kind of heavy oil wells hot water closed cycle adds heat drop adhesive-assembly and puts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090408 |