CN1715612A - Inner oil tube with heater of underwell oil pumping pipe - Google Patents
Inner oil tube with heater of underwell oil pumping pipe Download PDFInfo
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- CN1715612A CN1715612A CN 200410069552 CN200410069552A CN1715612A CN 1715612 A CN1715612 A CN 1715612A CN 200410069552 CN200410069552 CN 200410069552 CN 200410069552 A CN200410069552 A CN 200410069552A CN 1715612 A CN1715612 A CN 1715612A
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- heater
- tube
- oil
- inner oil
- pipe
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Abstract
The inner oil pipe of well oil pumping pipe includes inner oil pipe, oil pumping rod and heater set inside the oil pumping rod. The heater includes one additional steel pipe with outer insulating enamel layer, electrothermal film layer and electrically insulating and heat conducting layer, copper tube or rod as fire line to the ground power source inside the steel pipe, fire line electrode and zero line electrode on the electrothermal film layer, fire line conducting tab connecting the fire line electrode to the copper tube or rod and zero line conducting tab connecting the zero line electrode to the oil pumping rod as the zero line in the heating circuit. The present invention can heat the oil pumping pipe homogeneously and is energy saving.
Description
Technical field
The invention belongs to the down-hole raw oil heater of oil extraction, particularly relate to a kind of interior turbid pipe of down-hole oil pick-up tube that heater is set
Background technology
Down-hole viscosity of crude height, temperature are low excessively to be difficult to exploit.Prior art adopts the way that improves the oil temperature to down-hole input high-temperature steam, wastes a large amount of energy; Take the heating way poor stability of high voltage source in addition; The method of also useful PVC ribbon heater, Electric radiant Heating Film heating fuel sucking pipe, its weak point is a local team heat.Local temperature is too high.Make the crude oil charing rotten easily, and taken out in the process of ground at crude oil, it is very low that temperature can become gradually, poor effect.
Summary of the invention
Purpose of the present invention overcomes the deficiencies in the prior art exactly, and a kind of down-hole oil pick-up tube inner oil tube that heater is set is provided, with the problem of the safety in production in the oil pick-up tube heating process of solution down-hole, energy waste, poor effect.
The down-hole oil pick-up tube inner oil tube that heater is set of the present invention, comprise inner oil tube, sucker rod in the inner oil tube, the inner heater that is provided with of sucker rod, described heater sets gradually the insulation enamel layer for other establishes a steel pipe in its outside, electric membranous layer, the insulating heat-conductive layer, described steel duct is installed as live wire and is connected copper pipe or the copper rod of going up power supply altogether, on the described electric membranous layer firewire electrode is set, zero wire electrode, fire, the zero wire electrode sealed insulation is between insulation enamel layer and insulating heat-conductive layer, described firewire electrode passes the insulation enamel layer by live wire conductive, steel pipe is connected with copper pipe, copper pipe is connected with aboveground power supply, and zero wire electrode passes the insulating heat-conductive layer by neutral wire conductive and is connected zero line as heater circuit with sucker rod in the inner oil tube.
The length of described single heater is 0.5-9 rice; Electrothermal electrode on described each heater is connected in parallel, and voltage is 50V-380V, is preferably 50V-110V.
Electric radiant Heating Film resistance value on described each heater faces down from ground and diminishes successively according to voltage drop, and it is constant to keep single heating power.
Because heater of the present invention is outwards heated by sucker rod, avoid energy to loose to the oil well outside, save the energy; Power equalization in the actual heating process of each heater realizes that whole oil pick-up tube evenly heats; The operating voltage range of Electric radiant Heating Film is big, can adjust heating power supply voltage according to temperature in season, keeps higher crude oil temperature.
Description of drawings
Fig. 1 is the cross-sectional view of the single heating tube of the present invention;
Fig. 2 is the longitudinal section of the single heating tube of the present invention;
The specific embodiment
Below in conjunction with drawings and Examples structure of the present invention and heating principle are described further.The heater of present embodiment be in the installation process of whole oil rig with sucker rod connection one by one synchronously, can the heating of whole sucker rod and inner oil tube because of the structure of each heater is identical, only be described in detail single heater below.
As shown in the figure, present embodiment is provided with steel pipe 5 in sucker rod 1 inside, the outside of steel pipe 5 sets gradually insulation enamel layer 2, electric membranous layer 7, insulating heat-conductive layer 6, steel pipe 5 inside are provided as the copper pipe 3 that live wire connects aboveground power supply, firewire electrode 10, zero wire electrode 11 are set on the electric membranous layer 7, described firewire electrode 10 is connected with copper pipe 3 by live wire conductive 9, copper pipe 3 is connected with aboveground power supply, and zero wire electrode 11 is connected zero line as heater circuit by the interior sucker rod 1 of the neutral wire conductive 8 and the inner oil tube of down-hole.
The length of single steel pipe 5 is 0.5-9 rice, and the Electric radiant Heating Film 7 on each steel pipe 5 is connected in parallel, and voltage is 50V-380V, is preferably 50V-110V.Electric radiant Heating Film 7 resistance values of each steel pipe 5 face down from ground and diminish successively according to voltage drop, and it is constant to keep single heating power, so just can realize that whole oil pick-up tube evenly heats.
According to the concrete viscosity of season temperature Change and crude oil, by regulation voltage, inner control heating power on a large scale.
The present invention's benefit compared with prior art is:
1, this heater avoids using high voltage source, the flames of anger, when guaranteeing safety in production, has reduced The electric supply installation cost.
2, capacity usage ratio improves, and saves the energy.
3, homogeneous heating avoids hot-spot excessively cold.
4, by regulation voltage, can control crude oil temperature, enhance productivity.
Claims (5)
1, a kind of down-hole oil pick-up tube inner oil tube that heater is set, comprise inner oil tube, sucker rod in the inner oil tube, the inner heater that is provided with of sucker rod, it is characterized in that, described heater sets gradually the insulation enamel layer for other establishes a steel pipe in its outside, electric membranous layer, the insulating heat-conductive layer, described steel duct is installed copper pipe or the copper rod that connects aboveground power supply as live wire, on the described electric membranous layer firewire electrode is set, the zero wire electrode fire, the zero wire electrode sealed insulation is between insulation enamel layer and insulating heat-conductive layer, described firewire electrode passes steel pipe by live wire conductive and is connected with copper pipe, copper pipe is connected with aboveground power supply, and zero wire electrode passes the insulating heat-conductive layer by neutral wire conductive and is connected zero line as heater circuit with sucker rod in the inner oil tube.
2, according to the described down-hole oil pick-up tube inner oil tube that heater is set of claim 1, it is characterized in that the single length of described heater is 0.5-9 rice.
3, according to the described down-hole oil pick-up tube inner oil tube that heater is set of claim 1, it is characterized in that the electrothermal electrode of described each heater is connected in parallel, supply voltage is 50V-380V.
4, according to the described down-hole oil pick-up tube inner oil tube that heater is set of claim 3, it is characterized in that described heater supply voltage is 50V-110V.
According to the described down-hole of claim 1 oil pick-up tube heater, it is characterized in that 5, the Electric radiant Heating Film resistance value of described heater faces down from ground and diminishes successively according to voltage drop, single heating power is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410069552 CN1715612A (en) | 2004-07-04 | 2004-07-04 | Inner oil tube with heater of underwell oil pumping pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410069552 CN1715612A (en) | 2004-07-04 | 2004-07-04 | Inner oil tube with heater of underwell oil pumping pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1715612A true CN1715612A (en) | 2006-01-04 |
Family
ID=35821730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410069552 Pending CN1715612A (en) | 2004-07-04 | 2004-07-04 | Inner oil tube with heater of underwell oil pumping pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1715612A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476447B (en) * | 2009-02-02 | 2012-07-18 | 江苏联冠科技发展有限公司 | Hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe |
| 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 |
| CN107524431A (en) * | 2017-07-27 | 2017-12-29 | 方明环保科技(漳州)有限公司 | The conveying device for the material that mobility varies with temperature |
| CN111998141A (en) * | 2020-08-22 | 2020-11-27 | 嘉兴丹亭新材料有限公司 | Oil bailer pipeline for oil field drilling and preparation process thereof |
-
2004
- 2004-07-04 CN CN 200410069552 patent/CN1715612A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476447B (en) * | 2009-02-02 | 2012-07-18 | 江苏联冠科技发展有限公司 | Hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe |
| 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 |
| CN107524431A (en) * | 2017-07-27 | 2017-12-29 | 方明环保科技(漳州)有限公司 | The conveying device for the material that mobility varies with temperature |
| CN111998141A (en) * | 2020-08-22 | 2020-11-27 | 嘉兴丹亭新材料有限公司 | Oil bailer pipeline for oil field drilling and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |