CN2241770Y - Underground high-efficiency electrothermal film heating device - Google Patents
Underground high-efficiency electrothermal film heating device Download PDFInfo
- Publication number
- CN2241770Y CN2241770Y CN 95226691 CN95226691U CN2241770Y CN 2241770 Y CN2241770 Y CN 2241770Y CN 95226691 CN95226691 CN 95226691 CN 95226691 U CN95226691 U CN 95226691U CN 2241770 Y CN2241770 Y CN 2241770Y
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- insulating layer
- oil
- heating film
- electrothermal tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- 238000005485 electric heating Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 16
- 239000010779 crude oil Substances 0.000 description 8
- 239000003129 oil well Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Images
Landscapes
- Resistance Heating (AREA)
Abstract
The utility model relates to an oil recovery equipment in the pit, especially an oil is electrothermal film heating device in the pit, it is by the switch board, power cable, the unit electrothermal tube, oil pipe, the signal line, temperature sensor etc. are constituteed, the unit electrothermal tube is by oil pipe, protection tube and seal assembly form annular airtight chamber, the electrothermal film and the direct preparation of insulating layer of intracavity are on the oil pipe outer wall, the unit electrothermal tube can be installed wantonly in the well, do not receive the restriction of segment number and degree of depth, temperature change condition accessible temperature sensor in the pit, the signal line, automatically controlled cabinet shows, and can automatic control.
Description
The utility model relates to down-hole oil production equipment, specifically, is a kind of down-hole high-efficiency electric-heating film heating device.
At present, be that crude oil flows into oil well and is inhaled into oil extraction pump with Mechanical Method from the prerequisite of underground oil recovery, be transported to ground through oil pipe, because highly viscous crude flow resistance in recovery process is big, is difficult to into pump production, or aborning because oil is thick, the paraffin content height, wax deposition seriously causes output low excessively.The existing mechanical paraffin removal, chemical viscosity reduction, steam viscosity reduction and cable heating etc., not only investment cost height, and efficient is low, and viscosity reduction paraffin removal effect is undesirable.
The utility model is exactly in order to solve the deficiencies in the prior art, and a kind of down-hole high-efficiency electric-heating film heating device is provided.It can not limited by the degree of depth in the multistage heating in the arbitrary position of oil well on the pump or under the pump, to reduce the crude oil viscosity, strengthen crude oil fluidity, satisfies the crude oil production needs.
The utility model is achieved in that it by AC power, switch board, and power cable, the unit electrothermal tube, oil pipe, holding wire, temperature pick ups etc. constitute down-hole high-efficiency electric-heating film heating device.Wherein, the unit electrothermal tube is connected with oil pipe, and AC power is through switch board, cable transmission is given the unit electrothermal tube, give heating crude oil by the Electric radiant Heating Film heating through tubing wall in the unit electrothermal tube, the downhole temperature situation of change is through temperature pick up, and holding wire is reflected to switch board and shows control.The exothermic material of unit heating tube is the high-efficiency electric-heating film, and insulating layer is that high strength is extended insulation materials.Insulating layer and Electric radiant Heating Film directly are placed on the oil-pipe external wall.The unit electrothermal tube forms the annular closed chamber that can bear the 30MPa external pressure by outer protection tube and oil pipe, and the control of temperature sectional shows.
Advantage of the present utility model: the unit electrothermal tube can be installed in any part in the well, and hop count is unrestricted; Insulating layer and Electric radiant Heating Film directly are placed on the oil-pipe external wall, and in conjunction with firm, the thermal efficiency can reach more than 90%.The power saving rate height, cost is low; Crude oil is heated up from the shaft bottom to the well head piecemeal flow out ground smoothly; The downhole temperature situation of change shows clear, controls sensitive and accurate.
Below in conjunction with accompanying drawing, describe the utility model in detail.
Fig. 1 is the utility model system schematic.
Fig. 2 is the utility model unit electrothermal tube sectional drawing.
In the drawings, the label of each parts is:
By above accompanying drawing as can be seen, oil pipe 5 is in pit shaft 2, on oil pipe 5 outer walls pipe collar 6 is arranged, also have temperature pick up 12 and thermometric joint 13 on the oil pipe 5, AC power is through power distribution cabinet 9, power cable 8, connect with the power line in the unit electrothermal tube 3, unit electrothermal tube 3 connects with oil pipe 5, and temperature controller 31 connects with power distribution cabinet 9 through holding wire 32.On the outer wall of oil pipe 5, an insulating layer 20 is arranged, an Electric radiant Heating Film 19 is arranged in insulating layer 20, electrode 21,23 is arranged on the Electric radiant Heating Film 19, wherein, the above high temperature of Electric radiant Heating Film 19 abilities, 300 degree, anti-3000 volts high pressure, the pressure of anti-30MPa.Electrode 21 is connected with power lead 22, in the upper and lower part of insulating layer 20 seal 17 is arranged respectively, clamp sleeve 25, and sealing ring 29, friction top 16, bolt 27 etc., there is protection tube 18 its outside, and these parts are formed annular seal space.
After the energising, the heat that Electric radiant Heating Film 19 produces is passed to crude oil by oil pipe 5, reducing crude oil viscosity is flowed smoothly, entering oil well pump 4 heats step by step and delivers to well head, deliver to the ground tank farm through petroleum pipeline 11, reach the raising crude output, repair the purpose of stripper well, abandoned well, the variation of downhole temperature is transported to power distribution cabinet 9 by temperature pick up 12 through holding wire 7, shows after microcomputer data processing.And heat fast, heat the automatic control that stops to heat at a slow speed.
Claims (5)
1, a kind of down-hole high-efficiency electric-heating film heating device, by power distribution cabinet, electric supply, unit electrothermal tube, oil pipe, temperature controller, holding wire, insulating layer, electrode, seal, clamp sleeve, sealing ring, friction top, protection tube, compositions such as bolt is characterized in that on the outer wall of oil pipe, one insulating layer is arranged, an Electric radiant Heating Film is arranged in insulating layer, electrode is arranged on the Electric radiant Heating Film; Upper and lower part at insulating layer has seal respectively, clamp sleeve, and sealing ring, friction top, bolt etc., there is protection tube its outside, and these parts are formed annular envelope chamber.
2, device according to claim 1 is characterized in that temperature controller is connected with power distribution cabinet through holding wire.
3, device according to claim 1 is characterized in that electrode is connected with power lead.
4, device according to claim 1 is characterized in that the above high temperature of Electric radiant Heating Film ability 300 degree, 3000 volts high pressure, the pressure of anti-30MPa.
5, device according to claim 1 is characterized in that having on the oil pipe temperature pick up and thermometric joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226691 CN2241770Y (en) | 1995-12-04 | 1995-12-04 | Underground high-efficiency electrothermal film heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226691 CN2241770Y (en) | 1995-12-04 | 1995-12-04 | Underground high-efficiency electrothermal film heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2241770Y true CN2241770Y (en) | 1996-12-04 |
Family
ID=33872778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95226691 Expired - Fee Related CN2241770Y (en) | 1995-12-04 | 1995-12-04 | Underground high-efficiency electrothermal film heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2241770Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790930A (en) * | 2015-04-15 | 2015-07-22 | 盘锦宏昌实业有限责任公司 | Thickened-oil step-lifting cable-free RC electric heating film heating oil extracting system |
| CN104912531A (en) * | 2015-04-15 | 2015-09-16 | 盘锦宏昌实业有限责任公司 | Condensate oil well reservoir RC electric heating film heating oil extraction system |
| CN106837280A (en) * | 2017-03-31 | 2017-06-13 | 中嵘能源科技集团有限公司 | Combined heated lifting device and its heating lifting method |
-
1995
- 1995-12-04 CN CN 95226691 patent/CN2241770Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790930A (en) * | 2015-04-15 | 2015-07-22 | 盘锦宏昌实业有限责任公司 | Thickened-oil step-lifting cable-free RC electric heating film heating oil extracting system |
| CN104912531A (en) * | 2015-04-15 | 2015-09-16 | 盘锦宏昌实业有限责任公司 | Condensate oil well reservoir RC electric heating film heating oil extraction system |
| CN104912531B (en) * | 2015-04-15 | 2017-11-03 | 盘锦宏昌实业有限责任公司 | Condensation oil reservoir RC heated by electrothermal film oil extraction systems |
| CN106837280A (en) * | 2017-03-31 | 2017-06-13 | 中嵘能源科技集团有限公司 | Combined heated lifting device and its heating lifting method |
| CN106837280B (en) * | 2017-03-31 | 2023-09-05 | 中嵘能源科技集团有限公司 | Combined heating lifting device and heating lifting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170234111A1 (en) | Device for Removing and Preventing Paraffin by Using Electric Heating Generated from Skin Effect-based Natural Gas Electricity and Application thereof | |
| CA2078872A1 (en) | Thermal mineral extraction system | |
| CN206091955U (en) | Defeated air -source heat pump circulation heating device of using is adopted to viscous crude well | |
| CN110344797A (en) | A kind of electric heater unit that underground high temperature is controllable and method | |
| CN2871836Y (en) | Depressed return-pressure accessory of oil well | |
| CN2241770Y (en) | Underground high-efficiency electrothermal film heating device | |
| CN203441440U (en) | Thickened oil recovery system for horizontal well | |
| CN210685937U (en) | Mineral insulation electric heating wax-melting prevention system for high-wax-content oil well and gas well | |
| CN204899868U (en) | Natural gas power electrical heating wax removal wax -proof equipment based on skin effect | |
| CN107178904A (en) | Temperature-adjustable paddy electricity accumulation of heat raw oil heater | |
| CN204804801U (en) | Oil well hot -fluid intelligence heating device | |
| CN201915904U (en) | Electric heating and efficient paraffin removal and well cleanup device for variable frequency electromagnetic oil pipe | |
| CN209115071U (en) | The bearing type wellhead assembly of geothermal well | |
| CN105649592A (en) | Heavy oil wells gas electric heating device | |
| CN207293087U (en) | A kind of hot-water cylinder electronic temperature controller of improvement | |
| CN206919402U (en) | Temperature-adjustable paddy electricity accumulation of heat raw oil heater | |
| CN2663653Y (en) | Heating system device under oil-submersible electric pump and well pump | |
| CN200961786Y (en) | Oil delivery pipe heater | |
| CN211777364U (en) | Oil-submersible multi-stage type shaft bottom electromagnetic heating device | |
| CN2330780Y (en) | Whole electric heater unit of oil well oil pumping pipe | |
| CN2799853Y (en) | Oil well heater | |
| CN210564484U (en) | Cold production and cold transportation oil production and transportation system from oil production well to metering station | |
| CN2385080Y (en) | Oil transportation heat tracing pipe | |
| CN2251044Y (en) | Petroleum production aid | |
| CN200949449Y (en) | Deep-well heater of oil field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |