CN201957271U - Electric ribbon heater for thick oil well - Google Patents
Electric ribbon heater for thick oil well Download PDFInfo
- Publication number
- CN201957271U CN201957271U CN2011200361213U CN201120036121U CN201957271U CN 201957271 U CN201957271 U CN 201957271U CN 2011200361213 U CN2011200361213 U CN 2011200361213U CN 201120036121 U CN201120036121 U CN 201120036121U CN 201957271 U CN201957271 U CN 201957271U
- Authority
- CN
- China
- Prior art keywords
- ribbon heater
- oil well
- electric
- thick oil
- sheath
- 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 - Lifetime
Links
- 239000003129 oil well Substances 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 6
- 229920002620 polyvinyl fluoride Polymers 0.000 claims abstract description 4
- 239000000295 fuel oil Substances 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000009954 braiding Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 14
- 238000005485 electric heating Methods 0.000 description 8
- 241001325280 Tricardia watsonii Species 0.000 description 6
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000009854 Cucurbita moschata Nutrition 0.000 description 1
- 240000001980 Cucurbita pepo Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Pipe Accessories (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to an electric ribbon heater for a thick oil well, mainly aiming at solving the problem that the existing serial electric heat tracing bands are hardly suitable for heating an oil pipe under a well. The electric ribbon heater for the thick oil well is characterized in that the electric ribbon heater sequentially consists of cores (1), insulating layers (2), a combined sheath (3), a metal braiding layer (4), a reinforcing layer (5) and an armor layer (6) from the inside to the outside, wherein the number of the cores (1) is at least three; the combined sheath (3) is made of a polyvinyl fluoride material and is in a structure which is cross-linked by at least three hollow cylinders (7); and the cores (1) are arranged in the hollow cylinders (7). The electric ribbon heater for the thick oil well has the characteristics of high power per unit length, simple structure, corrosion resistance, high compression strength, high-temperature resistance and good insulating performance, can realize the heat tracing function of an ultra-long or ultra-short pipeline, and can effectively reduce the viscosity of produced liquid and relieve the wax precipitation and the scaling of the pipeline after the electric ribbon heater is used for the thick oil well.
Description
Technical field
The utility model relates to a kind of companion's thermic devices of down-hole oil tube, specifically, relates to a kind of electric energy that utilizes down-hole oil tube is realized electrically heat tracing device.
Background technology
In the oil recovery field, cross the oil extraction amount that serial problems such as the low oil well high waxy oil that causes, oil pipe fouling and thickened oil recovery are restricting the northern area of China always owing to the winter environment temperature.In order to address this problem, once the someone attempted the tandem electric-heating belt is used for this field.The tandem electric-heating belt is exactly a kind of special cable by electric energy heating back heating, has been widely used at present being used for heat-preserving anti-freezing and thermostatic control in the industries such as oil, chemical industry, medicine and food.Its principle is: when heart yearn passed through big electric current, itself produced Joule heat, thereby realized producing electrically heat tracing effect.But existing tandem electric-heating belt cable finds that the ribbon heater unit length power of this existing structure is too little after experimental application after a while, can't realize companion's heat needs of extra long distance pipeline.And, existing electric-heating belt all is to be used on the ground or shallow-layer uses with burying, and working environment at coal mines is abominable, all has higher requirements for corrosion resistance, compressive resistance, resistance to elevated temperatures and the insulation property etc. of electric-heating belt, therefore, existing electric-heating belt is difficult to directly be suitable for.
Summary of the invention
The problems of the prior art that propose in order to solve in the background technology, the utility model provides a kind of heavy oil wells heat tape that is specifically designed to the down-hole, this kind heavy oil wells heat tape has the high-power characteristics of unit length, can realize companion's hot merit energy of overlength or very-short-reach pipeline, have simple in structure, corrosion-resistant, compressive resistance is high, the characteristics of high temperature resistant and good insulation preformance, after being applied on the oil well, can effectively reduce the extraction fluid viscosity, alleviate the situation of wax deposition, fouling.
The technical solution of the utility model is: this kind heavy oil wells heat tape, comprise the heart yearn that has insulating barrier, wherein, described heavy oil wells heat tape is followed successively by heart yearn, insulating barrier and sheath, wire sheathing, reinforced layer and armour from inside to outside, wherein, the number of described heart yearn is at least 3; Described and sheath is made after for the extruding of polyvinyl fluoride material, and described polyvinyl fluoride promptly refers to ETFE, is the copolymer material of tetrafluoroethene and ethene, and the space structure of sheath is at least 3 structures that hollow cylinder is mutually crosslinked; Described heart yearn is arranged in described hollow cylinder, is interference fit between the two.
In addition, for further increasing the electric energy transmitting distance, reduce loss, can also increase the conductive core line of at least three resistance values less than the heart yearn resistance value in described heavy oil wells heat tape, described conductive core line also is arranged in the hollow cylinder on described and the sheath.
The utlity model has following beneficial effect: after taking the described structure of such scheme, owing to comprise three metal core wire at least among this inner chamber, when inserting the power supply line, can adopt three-phase alternating-current supply to be connected to the head end of three metal core wire respectively, and the tail end of three metal core wire is connected, form " star " load, thereby make the power of unit length be increased; In addition, owing to have that the copolymer of an employing ETFE tetrafluoroethene and ethene is made and sheath, this material abbreviates F40 as, be abbreviated as ETFE, have very good heat transfer, insulating properties, corrosion resistance and have support performance preferably, can realize that electric-heating belt has the higher heat efficiency, rigidity and has long useful life thousands of meters down-holes.And, the improvement project that on the basis of this programme, draws, at least three heart yearns that are specifically designed to conduction have been increased, like this, carry out oil pipe accompanies when hot in the down-hole, these three heart yearns can be specifically designed to next section accompanying-heat cable electric energy transmitting, thereby make this programme have the performance of overlength pipeline tracing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is described in the utility model and the structural representation of sheath.
Fig. 3 is the structural representation of scheme described in the utility model claim 2.
1-heart yearn among the figure, 2-insulating barrier, 3-and sheath, 4-wire sheathing, 5-reinforced layer, 6-armour, 7-hollow cylinder, 8-conductive core line.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this kind heavy oil wells heat tape is followed successively by heart yearn 1 and sheath 3, wire sheathing 4, reinforced layer 5 and the armour 6 of insulating barrier 2 from inside to outside, and wherein, the number of described heart yearn 1 is at least 3; Described and sheath 3 is made for the copolymer material of ETFE tetrafluoroethene and ethene, is the mutually crosslinked structure of at least 3 hollow cylinders 7; Described heart yearn 1 is arranged in described hollow cylinder 7.Make and sheath employing squash type, rather than pull-tube type, thereby three heart yearns and insulating barrier evenly are squeezed in the inside.
During concrete the application, at well head three-phase alternating-current supply is connected to the head end of three heart yearns respectively, and the tail end of three heart yearns is connected, form " star " load, by fixed mount heating tape is fixed in outside the oil pipe then, go into the well jointly with oil pipe.Like this, under the condition that does not change the original industry of recovering the oil of oil well, the heat that utilizes electric heating system to produce, be delivered to liquid medium by oil pipe, the well mouth of oil well crude oil temperature is got a promotion, make liquid medium reach required technological temperature, alleviate situations such as wax deposition, fouling, realize effective viscosity reduction, thereby promote output, increase the benefit.
In addition, for further improving remote companion's heat energy power, can also carry out following improvement: as shown in Figure 3, to increase the conductive core line that be mainly used in electric energy transmitting 8 of at least three resistance values much smaller than heart yearn 1 resistance value in this heavy oil wells heat tape, described conductive core line 8 also is arranged in the hollow cylinder 7 on described and the sheath 3.Carry out oil pipe in the down-hole and accompany when hot, these three heart yearns can be specifically designed to next section accompanying-heat cable electric energy transmitting, thereby make this programme have the performance of overlength pipeline tracing.
Claims (2)
1. heavy oil wells heat tape, comprise the heart yearn (1) that has insulating barrier (2), it is characterized in that: described heavy oil wells heat tape is followed successively by heart yearn (1), insulating barrier (2) and sheath (3), wire sheathing (4), reinforced layer (5) and armour (6) from inside to outside, wherein, the number of described heart yearn (1) is at least 3; Described and sheath (3) is made after for the extruding of polyvinyl fluoride material, is the mutually crosslinked structure of at least 3 hollow cylinders (7); Described heart yearn (1) is arranged in described hollow cylinder (7), is interference fit between the two.
2. heavy oil wells heat tape according to claim 1, it is characterized in that: described heavy oil wells heat tape also includes the conductive core line (8) of at least three resistance values less than heart yearn (1) resistance value, and described conductive core line (8) also is arranged in the hollow cylinder (7) on described and the sheath (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200361213U CN201957271U (en) | 2011-02-11 | 2011-02-11 | Electric ribbon heater for thick oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200361213U CN201957271U (en) | 2011-02-11 | 2011-02-11 | Electric ribbon heater for thick oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201957271U true CN201957271U (en) | 2011-08-31 |
Family
ID=44501372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200361213U Expired - Lifetime CN201957271U (en) | 2011-02-11 | 2011-02-11 | Electric ribbon heater for thick oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201957271U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152848A (en) * | 2013-03-13 | 2013-06-12 | 江苏东南电缆有限公司 | Crosslinking heating band |
| CN104735829A (en) * | 2015-03-28 | 2015-06-24 | 安徽华瑞电气有限公司 | Anti-corrosion anti-tensile electric heating band |
| CN105072720A (en) * | 2015-08-12 | 2015-11-18 | 安邦电气集团有限公司 | Series-connected electric tracing ribbon used for oil well long-distance transmission pipeline |
| CN105101494A (en) * | 2015-08-12 | 2015-11-25 | 安邦电气集团有限公司 | Series-type electric tracing band for large tank long transmission pipeline |
| CN112188648A (en) * | 2019-07-03 | 2021-01-05 | 康明斯动力技术有限公司 | Automatic heating control device for engine oil pipeline of laboratory |
-
2011
- 2011-02-11 CN CN2011200361213U patent/CN201957271U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152848A (en) * | 2013-03-13 | 2013-06-12 | 江苏东南电缆有限公司 | Crosslinking heating band |
| CN104735829A (en) * | 2015-03-28 | 2015-06-24 | 安徽华瑞电气有限公司 | Anti-corrosion anti-tensile electric heating band |
| CN105072720A (en) * | 2015-08-12 | 2015-11-18 | 安邦电气集团有限公司 | Series-connected electric tracing ribbon used for oil well long-distance transmission pipeline |
| CN105101494A (en) * | 2015-08-12 | 2015-11-25 | 安邦电气集团有限公司 | Series-type electric tracing band for large tank long transmission pipeline |
| CN105101494B (en) * | 2015-08-12 | 2019-07-05 | 安邦电气集团有限公司 | A kind of large size trough pool long-distance transport pipes tandem electric-heating belt |
| CN105072720B (en) * | 2015-08-12 | 2019-07-05 | 安邦电气集团有限公司 | A kind of oil well long-distance transport pipes tandem electric-heating belt |
| CN112188648A (en) * | 2019-07-03 | 2021-01-05 | 康明斯动力技术有限公司 | Automatic heating control device for engine oil pipeline of laboratory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DAQING TIANHONG ELECTRICAL HEATING EQUIPMENT CO., Free format text: FORMER OWNER: GU JIANZHONG Effective date: 20120121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120121 Address after: Lake Ranghulu District Heilongjiang city of Daqing province Heilongjiang province Daqing city 163458 street MH22A Patentee after: Daqing Tianhong Electrical Heating Equipment Co., Ltd. Address before: 163458 Heilongjiang province Daqing Lake City Ranghulu District Street MH22A Patentee before: Gu Jianzhong |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |