CN103835689A - Oil layer electrical heating oil extracting device and using method thereof - Google Patents
Oil layer electrical heating oil extracting device and using method thereof Download PDFInfo
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- CN103835689A CN103835689A CN201410098385.XA CN201410098385A CN103835689A CN 103835689 A CN103835689 A CN 103835689A CN 201410098385 A CN201410098385 A CN 201410098385A CN 103835689 A CN103835689 A CN 103835689A
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Abstract
The invention discloses an oil layer electrical heating oil extracting device. The oil layer electrical heating oil extracting device comprises a special transformer, a control cabinet, an input cable used for connecting the special transformer and the control cabinet, an output cable, an oil pipe used for outputting thickened oil and a hollow screw pump. A plurality of steel armor heating cables are tightly fixed on the outer wall face of an oil conveying pipe through a plurality of cable clamps and are evenly distributed on the periphery of the oil pipe, and the ends, inside a pumping well, of the steel armor heating cables are connected through a heat tracing cable clamp to form a closed loop.
Description
Technical field
The present invention relates to a kind of oil reservoir electrical heating oil extracting appts, more particularly, relate to a kind of for viscous crude or high solidifying oily oil reservoir electrical heating oil extracting appts and the using method thereof of exploiting and be applicable to offshore oilfield.
Background technology
At present, what heavy crude producing or high solidifying oil generally adopted is steam injection method, and offshore oilfield, particularly oil field, Bohai Sea Gulf, mostly adopt matter viscous crude in water flooding regime exploitation, inject hot water rises reservoir temperature after oil reservoir, because the distance of offshore oilfield water filling is very long, but arrive the hot water temperature at oil reservoir place often lower than reservoir temperature, make oil reservoir be subject to cold damage, make on the contrary crude oil retrogradation in oil reservoir, recovery ratio is low, so must be heated to sufficiently high temperature to the water injecting, make it to become high-temperature-hot-water (or steam) and enter oil reservoir.So just must adopt jumbo heating furnace, heating furnace is large because of floor space, and has naked light dangerous, at sea in oil field, carries out.
Summary of the invention
Main purpose of the present invention is to provide a kind of oil reservoir heating oil extraction device and using method thereof, adopts this oil reservoir heating oil extraction device can meet existing oil well environmental requirement, more at sea in oil field, is widely used.
Oil reservoir electrical heating oil extracting appts in the present invention includes dedicated transformer, switch board, for connecting the input cable, output cable of dedicated transformer and switch board, for exporting oil pipe and the cored screw pump of viscous crude, be glued with many steel armour heating cable in the outside wall surface of described petroleum pipeline, described steel armour heating cable is evenly distributed in oil pipe around, and the end at described steel armour heating cable in pumpingh well is connected to form the loop of sealing by an accompanying-heat cable clamp.
Described steel armour heating cable is fixed and is close to the outside wall surface of described oil pipe by multiple strain relief clamps.
Described strain relief clamp is made up of two semi-circular arc steel, wherein one end of semi-circular arc steel is hinged by hinge, the other end is by bolt, the dismountable connection of nut, described strain relief clamp is fixedly installed the U-shaped draw-in groove consistent with described steel armour heating cable quantity at the inwall of described semi arch steel, and described U-shaped draw-in groove forms the fixing of half coated to described steel armour heating cable.
Described accompanying-heat cable clamp is made up of two semi-circular arc steel, wherein one end of semi-circular arc steel is hinged by hinge, the other end passes through bolt, the dismountable connection of nut, one end of described two semi-circular arc steel is formed for connecting the bending part of described steel armour heating cable, described accompanying-heat cable clamp is fixedly installed the U-shaped draw-in groove consistent with described steel armour heating cable quantity at the inwall of described semi arch steel, described U-shaped draw-in groove forms the fixing of half coated to described steel armour heating cable, and be at one end formed for connecting the bending part of described steel armour heating cable.
On the internal face of described two semi-circular arc steel, be provided with groove, and in each groove, be embedded and be fixed with described U-shaped draw-in groove, described steel armour heating cable is inserted in described U-shaped draw-in groove just.
Described steel armour heating cable is made up of steel tube dirt-proof boot and the heating cable penetrating in described steel tube dirt-proof boot, described steel tube dirt-proof boot and described heating cable composition kelvin effect calandria, and be provided with resistant to elevated temperatures insulating layer between steel tube dirt-proof boot and described heating cable.
Described steel tube dirt-proof boot is made up of mild steel, and the material of described insulating layer is the high temperature resistant polyethersulfone ketone at 250 ℃.
Described input cable is equipped with protection tube in non-buried-pipe laying section; described switch board is provided with the grounding wire of being made up of 40x4 galvanized flat steel simultaneously; described grounding wire is connected with the ground connector of being made up of 50x5x2500 Zinc-coated angle steel, and described ground connector directly inserts ground ground connection.
Described steel armour heating cable is connected with described output cable by anti-explosion terminal box.
In the present invention, the using method of oil reservoir electrical heating oil extracting appts is in the time of energising heating, inject the water of 10-20 ton every day outward at the oil pipe of oil well, the heated rear further heating oil reservoir of water injecting, make oil reservoir surface down the oil reservoir of 5～12m all obtain the temperature of 50～60 ℃, make the viscous crude in oil reservoir enter smoothly described oil pipe and be plucked out of the ground.
Oil reservoir electrical heating oil extracting appts in the present invention has simple in structure, and cost is lower, easy to adjust, easily is automated, and is the ideal tools of Offshore Heavy Oil Field exploitation.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil reservoir electrical heating oil extracting appts in the present invention.
Fig. 2 is the cross-sectional schematic of strain relief clamp and accompanying-heat cable clamp in the present invention.
Fig. 3 is longitudinal cross-sectional schematic of accompanying-heat cable clamp in the present invention.
Fig. 4 is longitudinal cross-sectional schematic of strain relief clamp in the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment in the present invention is elaborated.
As shown in Figure 1, oil reservoir electrical heating oil extracting appts in the present invention includes dedicated transformer 1, switch board 2, for connecting input cable 3, output cable 4, cored screw pump 17, the oil pipe 11 of dedicated transformer 1 and switch board 2 and being close to many steel armour heating cable 12 of oil pipe 11 outside wall surface, extend into end in pumpingh well and be connected to form by accompanying-heat cable clamp 20 loop of sealing at steel armour heating cable 12.Wherein:
Dedicated transformer 1 converts extraneous power supply to steel armour heating cable 12 required voltage; at the front end of dedicated transformer, master switch 21 is installed; dedicated transformer 1 is communicated with switch board 2 by input cable 3; and extend the position on ground at input cable 3; be that non-buried-pipe laying section is equipped with protection tube 5; prevent that input cable 3 is destroyed; switch board 2 is provided with the grounding wire 6 of being made up of 40x4 galvanized flat steel; grounding wire 6 is connected with the ground connector 7 of being made up of 50x5x2500 Zinc-coated angle steel; ground connector 7 is buried by standard, as shown in Figure 1.
Switch board 2 is connected with steel armour heating cable 12 by output cable 4, is communicated with by drive rod 10 on the pump of screw pump feed cable 8 and cored screw pump 17 simultaneously, respectively drive rod 10 on steel armour heating cable 12 and pump is controlled to operation by switch board 2.
When construction, the present invention is for the protection to steel armour heating cable 12; outside oil pipe 11 and between sleeve pipe 15, be provided with multiple tubing centrilizers 19; guarantee the position of oil pipe 11; on pump, between drive rod 10 and oil pipe 11, be also provided with centralizer 13 on multiple pumps simultaneously, guarantee the steady rotation of drive rod 10 on pump.
At the end of pumpingh well, be connected and fixed every steel armour heating cable 12 by an accompanying-heat cable clamp 20, when being fixed, steel armour heating cable 12 also make steel armour heating cable 12 form loop, can homogeneous heating under "on" position, thereby can make oil pipe 11 thermally equivalents that are close together with it, water to the viscous crude in oil pipe 11 or injection heats, and prevents that oil reservoir is subject to cold damage simultaneously, guarantees the mobility of crude oil in oil reservoir.
As shown in Figure 2 and Figure 4, strain relief clamp 14 is made up of two semi-circular arc steel, and wherein one end of semi-circular arc steel is hinged by hinge 22, and the other end is by bolt, the dismountable connection of nut 23.For better heating effect that oil pipe 11 is shaped, steel armour heating cable 12 is distributed on around oil pipe 11, simultaneously, for the fixing to steel armour heating cable 12, on the internal face of two semi-circular arc steel of strain relief clamp 14, be provided with groove 24, and be embedded and be fixed with U-shaped draw-in groove 25 in each groove 24, steel armour heating cable 12 can be inserted in this U-shaped draw-in groove 25 just, can arrange according to the quantity of steel armour heating cable 12 for quantity and the distribution of U-shaped draw-in groove 25.
As shown in Figures 2 and 3, the structure of accompanying-heat cable clamp 20 is basic identical with strain relief clamp 14, its difference is that accompanying-heat cable clamp 20 is to be bent to form the bending part 26 that connects steel armour heating cable 12 for conducting electricity in the lower end of strain relief clamp 14, also forms U-shaped draw-in groove corresponding with this bending part 26 by U-shaped draw-in groove 25 simultaneously.
What the steel armour heating cable 12 in the present invention adopted is that rated voltage is that 2.0kV, sectional area are at 25mm
2to 35mm
2between cable.Its steel tube dirt-proof boot and the heating cable penetrating in steel tube dirt-proof boot form, steel tube dirt-proof boot and heating cable composition kelvin effect calandria, and between steel tube dirt-proof boot and heating cable, be provided with resistant to elevated temperatures insulating layer.Heating cable includes for the cable core of heating part with for accompanying the cable core of heat part, wherein adopt for heating part cable core the constantan that φ 6 resistance are 16.6 Ω/km, for accompanying the cable core of heat part to adopt specification identical with for heating part cable core and meet the red copper bar of GB, for heating part with for accompanying cable core outer of heat part to be arranged with the cable insulation by the polyethersulfone ketone extrusion molding shaping of high temperature resistant 250 ℃.Be arranged with steel tube dirt-proof boot outward at cable insulation, steel tube dirt-proof boot adopts 10# low carbon steel pipe to make, and specification is 18(16) × 2.
In order to adapt to this steel armour heating cable 12, that the dedicated transformer 1 in the present invention is inputted is 6.3kV(or 10kV), power for being not more than 1000kVA, frequency is the three-phase voltage of 50 (60) Hz, output be that frequency is 50 (60) Hz, is not more than the three-phase voltage of 2.0kV, concrete magnitude of voltage designs as required, unfixing.
Oil reservoir electrical heating oil extracting appts in the present invention by three-phase alternating current conversion surface steel armour heating cable 12 needed voltages, and is transferred to drive rod 10 on the pump of steel armour heating cable 12 and cored screw pump 17 by dedicated transformer 1 by output cable 4 and screw pump feed cable 8.
Steel armour heating cable 12 need to be along with oil pipe 11 is lowered in pumpingh well in lower oil pipe 11, and while not being lowered to pumpingh well, steel armour heating cable 12 is on special cable hank.
It is 1kW/m that oil reservoir heats suitable heating power, and the heating power of a cable is 200W/m～300W/m, think the requirement that meets 1kW/m, must be lowered to the above steel armour heating cable 12 of 3 or 3.
The logical electrically heated while of steel armour heating cable 12 was injected to sewage (can be also oil-polluted water) in pumpingh well in the past, by the heating of steel armour heating cable 12, can make the water temperature of injecting reach 50～60 ℃, in pumpingh well, inject the water of 10-20 ton every day, the water injecting makes oil reservoir surface down obtain the temperature of 50～60 ℃ in the viscous crude place of 5～12m after being heated, make the viscous crude in oil reservoir enter smoothly oil pipe 11 and be plucked out of the ground.Economic effect can be better like this, and solved the problem of effluent discharge.
In the present invention, oil reservoir electrical heating oil extracting appts is accompanied by the setting of steel armour heating cable, can also be provided with test cable, this test cable is for testing temperature, the pressure under pumpingh well, and water injection rate, the output liquid measure etc. of testing ground can adopt measuring techniques for optical fiber simultaneously.
In sum, oil reservoir electrical heating oil extracting appts in the present invention is directly close to oil pipe surface by steel armour heating cable, and steel armour heating cable 12 is made up of steel tube dirt-proof boot and the heating cable penetrating in steel tube dirt-proof boot, steel tube dirt-proof boot and cable composition kelvin effect calandria, and between steel tube dirt-proof boot and heating cable, be provided with the insulating layer of high temperature resistant (250 ℃), thereby external surface does not have voltage and current the inner surface of steel tube dirt-proof boot is charged, fool proof reliable when work.And can realize the interior viscous crude of oil pipe 11 is heated uniformly, have simple in structurely, cost is lower, easy to adjust, easily is automated, it is the ideal equipment of Offshore Heavy Oil Field exploitation.
Claims (10)
1. an oil reservoir electrical heating oil extracting appts, include dedicated transformer, switch board, for connecting the input cable, output cable of dedicated transformer and switch board, for exporting oil pipe and the cored screw pump of viscous crude, it is characterized in that, be glued with many steel armour heating cable in the outside wall surface of described petroleum pipeline, described steel armour heating cable is evenly distributed in oil pipe around, and the end at described steel armour heating cable in pumpingh well is connected to form the loop of sealing by an accompanying-heat cable clamp.
2. according to the oil reservoir electrical heating oil extracting appts described in claim 1, it is characterized in that, described steel armour heating cable is fixed and is close to the outside wall surface of described oil pipe by multiple strain relief clamps.
3. according to the oil reservoir electrical heating oil extracting appts described in claim 2, it is characterized in that, described strain relief clamp is made up of two semi-circular arc steel, wherein one end of semi-circular arc steel is hinged by hinge, the other end is by bolt, the dismountable connection of nut, described strain relief clamp is fixedly installed the U-shaped draw-in groove consistent with described steel armour heating cable quantity at the inwall of described semi arch steel, and described U-shaped draw-in groove forms the fixing of half coated to described steel armour heating cable.
4. according to the oil reservoir electrical heating oil extracting appts described in claim 1, it is characterized in that, described accompanying-heat cable clamp is made up of two semi-circular arc steel, one end of described two halves arc of circle steel is hinged by hinge, the other end passes through bolt, the dismountable connection of nut, one end of described two semi-circular arc steel is formed for connecting the bending part of described steel armour heating cable, described accompanying-heat cable clamp is fixedly installed the U-shaped draw-in groove consistent with described steel armour heating cable quantity at the inwall of described semi arch steel, described U-shaped draw-in groove forms the fixing of half coated to described steel armour heating cable, and be at one end formed for connecting the bending part of described steel armour heating cable.
5. according to the oil reservoir electrical heating oil extracting appts described in claim 3 or 4, it is characterized in that, on the internal face of described two semi-circular arc steel, be provided with groove, and in each groove, be embedded and be fixed with described U-shaped draw-in groove, described steel armour heating cable is inserted in described U-shaped draw-in groove just.
6. according to the oil reservoir electrical heating oil extracting appts described in claim 2 or 3, it is characterized in that, described steel armour heating cable is made up of steel tube dirt-proof boot and the heating cable penetrating in described steel tube dirt-proof boot, described steel tube dirt-proof boot and described heating cable composition kelvin effect calandria, and be provided with resistant to elevated temperatures insulating layer between steel tube dirt-proof boot and described heating cable.
7. oil reservoir electrical heating oil extracting appts according to claim 6, is characterized in that, described steel tube dirt-proof boot is made up of mild steel, and the material of described insulating layer is the high temperature resistant polyethersulfone ketone at 250 ℃.
8. according to the oil reservoir electrical heating oil extracting appts described in claim 1; it is characterized in that; described input cable is equipped with protection tube in non-buried-pipe laying section; described switch board is provided with the grounding wire of being made up of 40x4 galvanized flat steel simultaneously; described grounding wire is connected with the ground connector of being made up of 50x5x2500 Zinc-coated angle steel, and described ground connector directly inserts ground ground connection.
9. according to the oil reservoir electrical heating oil extracting appts described in claim 1, it is characterized in that, described steel armour heating cable is connected with described output cable by anti-explosion terminal box.
10. the using method of the oil reservoir electrical heating oil extracting appts described in the claims, it is characterized in that, in the time of energising heating, inject the water of 10-20 ton every day outward at the oil pipe of oil well, the heated rear further heating oil reservoir of water injecting, make oil reservoir surface down the oil reservoir of 5～12m all obtain the temperature of 50～60 ℃, make the viscous crude in oil reservoir enter smoothly described oil pipe and be plucked out of the ground.
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| CN201410098385.XA CN103835689B (en) | 2014-03-17 | 2014-03-17 | Oil reservoir electrical heating oil extracting appts and using method thereof |
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| CN201410098385.XA CN103835689B (en) | 2014-03-17 | 2014-03-17 | Oil reservoir electrical heating oil extracting appts and using method thereof |
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| CN103835689B CN103835689B (en) | 2016-08-17 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989906A (en) * | 2015-08-12 | 2015-10-21 | 辽宁华孚石油高科技股份有限公司 | Continuous steel tube sheath cable electric heat tracing method |
| CN106194136A (en) * | 2016-08-29 | 2016-12-07 | 王国良 | A kind of screw pump oil production device with heating arrangements under pump and oil production method thereof |
| CN106869814A (en) * | 2017-03-03 | 2017-06-20 | 河北华通线缆集团股份有限公司 | Continuous umbilical and its manufacture method with blocking in limited location |
| CN107605447A (en) * | 2017-10-27 | 2018-01-19 | 安徽安泽电工有限公司 | A kind of reducing thick oil viscosity heater |
| CN107740902A (en) * | 2017-10-31 | 2018-02-27 | 天津德尔泰热控***有限公司 | A kind of clip for being used to fix metal armouring heating tape |
| CN110965995A (en) * | 2019-10-31 | 2020-04-07 | 中国石油天然气股份有限公司 | Oil-water distribution testing device and method for low-liquid-volume horizontal well |
| CN111980596A (en) * | 2020-09-02 | 2020-11-24 | 张东林 | Non-wax-deposition heat pipe type oil pipe for oil extraction in oil field |
| CN112081554A (en) * | 2020-09-22 | 2020-12-15 | 山东天汇石油技术有限公司 | Using method of viscosity reduction device of thick oil rodless submersible pump well |
| CN112984272A (en) * | 2021-02-19 | 2021-06-18 | 秦倩倩 | Auxiliary starting device for hot wax-containing crude oil pipeline for petrochemical industry |
| CN114758815A (en) * | 2022-04-19 | 2022-07-15 | 明达线缆集团有限公司 | Magnesium oxide mineral insulation rigid heating special cable |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989906A (en) * | 2015-08-12 | 2015-10-21 | 辽宁华孚石油高科技股份有限公司 | Continuous steel tube sheath cable electric heat tracing method |
| CN106194136A (en) * | 2016-08-29 | 2016-12-07 | 王国良 | A kind of screw pump oil production device with heating arrangements under pump and oil production method thereof |
| CN106194136B (en) * | 2016-08-29 | 2019-01-22 | 王国良 | A kind of screw pump oil production device and its oil production method with pump lower heating mechanism |
| CN106869814A (en) * | 2017-03-03 | 2017-06-20 | 河北华通线缆集团股份有限公司 | Continuous umbilical and its manufacture method with blocking in limited location |
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| CN107740902A (en) * | 2017-10-31 | 2018-02-27 | 天津德尔泰热控***有限公司 | A kind of clip for being used to fix metal armouring heating tape |
| CN110965995A (en) * | 2019-10-31 | 2020-04-07 | 中国石油天然气股份有限公司 | Oil-water distribution testing device and method for low-liquid-volume horizontal well |
| CN111980596A (en) * | 2020-09-02 | 2020-11-24 | 张东林 | Non-wax-deposition heat pipe type oil pipe for oil extraction in oil field |
| CN112081554A (en) * | 2020-09-22 | 2020-12-15 | 山东天汇石油技术有限公司 | Using method of viscosity reduction device of thick oil rodless submersible pump well |
| CN112984272A (en) * | 2021-02-19 | 2021-06-18 | 秦倩倩 | Auxiliary starting device for hot wax-containing crude oil pipeline for petrochemical industry |
| CN114758815A (en) * | 2022-04-19 | 2022-07-15 | 明达线缆集团有限公司 | Magnesium oxide mineral insulation rigid heating special cable |
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Effective date of registration: 20200131 Address after: 124013 Industrial Development Zone, Xinglongtai District, Panjin City, Dalian City, Liaoning Province Patentee after: Liaoning Huafu Petroleum High-tech Co., Ltd. Address before: 116600 No. 83 middle Huaihe Road, Dalian Economic Development Zone, Liaoning, China Patentee before: DALIAN ANDMIR EQUIPMENT CO., LTD. |