CN101476447A - Hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe - Google Patents
Hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe Download PDFInfo
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- CN101476447A CN101476447A CNA2009100085206A CN200910008520A CN101476447A CN 101476447 A CN101476447 A CN 101476447A CN A2009100085206 A CNA2009100085206 A CN A2009100085206A CN 200910008520 A CN200910008520 A CN 200910008520A CN 101476447 A CN101476447 A CN 101476447A
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- oil pumping
- heating film
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Abstract
The invention relates to an oil pumping tube for an oil well, in particular to an ultra-high molecular weight polyethylene composite oil pumping tube with a hot film heating layer. The oil pumping tube belongs to the technical field of petroleum industry. The hot film type ultra-high molecular weight polyethylene composite oil pumping tube comprises a metal outer tube and an ultra-high molecular weight polyethylene inner tube, wherein an electroheat film is preset in an inner tube interlayer, and the electroheat film covers an insulation heat transfer layer; the insulation heat transfer layer is made of insulation heat transfer materials of mica, quartz sand, plutonium tetrafluoride ethylene, heat conduction silicone grease, and the like. The heat conduction silicone grease is preferable. The tail end of the electroheat film is connected with a heat sensor and a temperature controller, and a metal powder heat-conducting medium layer is coated between the inner tube and the insulation heat transmission layer of the electroheat film. The product of the oil pumping tube improves the oil pumping efficiency and reduces the oil pumping cost.
Description
Technical field
The present invention relates to a kind of oil well oil-pumping tubing, a kind of ultrahigh molecular weight polyethylene composite oil pumping pipe in the time of especially with hotting mask zone of heating.The technical field that belongs to petroleum industry.
Background technology
At present, China's each crude oil great majority of having found and having developed are the ＂ three high ＂ crude oil of the high content of wax, high viscosity, high-solidification point.Difference according to its flowing property can be divided into two big classes: a class is the cerul crude oil of the higher high-solidification point of wax content, this quasi-oil is when temperature is higher than wax precipitation temperature, viscosity is lower, and vary with temperature little, belong to Newtonian fluid, but when temperature was reduced near freezing point, viscosity is anxious to be increased, and the characteristic of non-newtonian fluid is arranged; Another kind of is the high high viscosity oil of gum level, and the freezing point of this crude oil is lower, and has the characteristic of Newtonian fluid all the time, but because its gum level height, flow resistance is bigger, and with the reduction of temperature, its flow resistance increases.
Most of waxy crude oil all have the characteristic of non-newtonian fluid at low temperatures.Just can not adopt simply, be that common oil pick-up tube extracts conveying for such crude oil, must adopt the method that adds hot-plug, its objective is that the temperature so as to improving crude oil reduces its viscosity, its temperature is remained on the freezing point, reduce the frictional resistance loss when extracting, increase oil pump capacity.
UHMWPE (is Ultra high molecular weight polyethylene on the other hand, ultra-high molecular weight polyethylene) tubing excellent combination property, its cost performance height when being used as the wear-and corrosion-resistant pipeline, the mesohigh that can be widely used in various corrosivity, abrasiveness, adhesion, fouling tendency medium is carried.Develop a focus of the current especially plastics development of the compound enhancing tubing of UHMWPE on this basis.Along with the maturation day by day of UHMWPE tubing production technology and the further raising of UHMWPE pipe performance, the epoch that replace part metals pipeline, line with rubber pipeline and other plastic conduits with the UHMWPE pipeline arrive.
Add the mode that thermal recovery is followed heating during generally for oil pumping, but do not have a kind of heating means that are applicable to the UHMWPE pumping pipelines at present.The present invention has just provided a kind of pipeline that has UHMWPE pipeline good characteristic simultaneously concurrently and have heating efficiency.
Summary of the invention
The objective of the invention is to obtain a kind of oil pick-up tube that can use at low temperatures, and reach energy-conservation effect.
A kind of hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe of the present invention, comprise: pipe in metal outer pipe, the ultra-high molecular weight polyethylene, the prescription of ultra-high molecular weight polyethylene following (percentage by weight): polyvinyl resin with super-high molecular weight 85-88 part, sliding agent 3-9 part, nucleator 0.1-1; The molecular weight of ultra-high molecular weight polyethylene (UHMWPE) is not less than 3,000,000, and sliding agent selects kollag, and is preferred: calcium stearate, graphite, macromolecule wax; Above-mentioned nucleator is a mineral-type, preferably certainly: zeolite, kaolin or silica.
Above-mentioned ultrahigh molecular weight polyethylene Preparation Method is as follows: put into extruder after component is mixed according to above-mentioned ratio, about 150 degrees centigrade, the material of preheating is squeezed in the mould, moulding gets final product.
Wherein, preset Electric radiant Heating Film in the described interior pipe clamp layer,
Above-mentioned Electric radiant Heating Film is coating the insulation heat transfer layer; The insulation heat transfer layer is selected from: mica, quartz sand, tetrafluoroethylene, heat-conducting silicone grease, and preferred: heat-conducting silicone grease; The advantage of insulation heat transfer layer is heater strip and metal outer pipe conduction or the short circuit that prevents on the Electric radiant Heating Film, guarantees that simultaneously the heat that heater strip produces can heat pipeline.Adopt the common process means can reach goal of the invention of the present invention.
Above-mentioned Electric radiant Heating Film end is connected with heat sensor and temperature controller; Advantage is with viscosity different temperature to be set according to the quality of different oils, so that the oil pumping effect reaches best.
The sticking metal dust heat-conducting medium layer that scribbles between the insulation heat transfer layer of above-mentioned Electric radiant Heating Film and the described interior pipe.
Another one implementation method of the present invention is exactly in above-mentioned Electric radiant Heating Film just can being compressed on when the extrusion molding in the pipe; In being preset at when interior pipe moulding, Electric radiant Heating Film among the UHMWPE of pipe, can make heating film even.The UHMWPE that the present invention uses is the polyethylene of molecular weight more than 3,000,000, it has excellent abrasion resistance, the good low-temperature resistance impact, and nontoxic, water-fast, chemical-resistant resistance, it is mobile poor, viscosity is very high under the fusion, is to be elastomeric high viscoplasticity, can be with compacting, sintering, extrude, the method moulding of injection moulding and blowing.UHMWPE raw material sources of the present invention are in business procurement.
Because Electric radiant Heating Film is can be preferably bonding and area is bigger with polyethylene, can heat internal layer preferably, the Electric radiant Heating Film that is preset should can be heated with the oil in the pipe in guaranteeing on the one hand with interior at 2cm preferably apart from the bore side, and thicker interior external diameter of pipe can obtain heat insulation effect preferably on the one hand.
The above-mentioned Electric radiant Heating Film ground wire utmost point that presets is exposed between interior pipe and the outer tube, and and metal outer pipe connect the electrode ground wire and can directly outer metal tube be used as ground wire between pipe and the outer tube in being arranged on, when distance is longer, only need the single-phase electricity just can be to managing interior heating;
The live wire level of above-mentioned Electric radiant Heating Film connects on the lead that is embedded in the interior pipe; The lead of interior pipe has preset a lead, and lead links to each other with the live wire level of Electric radiant Heating Film, and the entire circuit device has been equivalent between two leads a heating resistor in parallel, and the long more resistance of pipeline is more little, and heating power is big more.
Above-mentioned metal outer pipe is steel pipe or copper pipe; The main effect of metal outer pipe is the booster action of internal pipe on the one hand, and one side is as a polar conductor of heating film.
In above-mentioned Electric radiant Heating Film just is compressed on when extrusion molding in the pipe; In being preset at when interior pipe moulding, Electric radiant Heating Film among the UHMWPE of pipe, can make heating film even.
Above-mentioned interior pipe by the size reducing machine undergauge after the sizing fairlead be pulled in the outer tube, mainly may further comprise the steps: at first select the ultrahigh molecular weight polyethylene tubing of its external diameter for use than the internal diameter big 2%～5% of selected steel pipe, make ultrahigh molecular weight polyethylene tubing pass through the size reducing machine undergauge then, make that the external diameter of ultrahigh molecular weight polyethylene tubing is more smaller than the internal diameter of steel pipe, under the effect of tractor, ultrahigh molecular weight polyethylene tubing enters into steel pipe by the sizing fairlead.After after a while, because of ultrahigh molecular weight polyethylene tubing has memory function, ultrahigh molecular weight polyethylene tubing will closely be combined with each other with steel pipe.
The invention effect
Product of the present invention can improve pumping efficiency, regulates the temperature of oil pick-up tube from increasing Electric radiant Heating Film and electric transducer and temperature controller, and pipe also can increase pumping efficiency in the UHMWPE.
Another one inventive point of the present invention is exactly a coated insulation heat transfer layer on Electric radiant Heating Film, the use Electric radiant Heating Film was once arranged in the prior art, but owing to cause current potential to descend with Metal Contact, so it is bad to add thermal effect, through after the technology of coated insulation heat transfer layer on the Electric radiant Heating Film, heating-up temperature can reach more than 280 degrees centigrade, but energy consumption has reduced by 15%.Simultaneously, the present inventor has done the test of multiple insulation heat transfer layer, and the effect of finding heat-conducting silicone grease is far above other spendable insulation heat transfer layer materials.
Description of drawings
The cross-sectional type figure of Fig. 1 hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe of the present invention;
The cross-sectional type figure of the another kind of form of Fig. 2 hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe of the present invention.
The specific embodiment
Embodiment 1
As Fig. 1, hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe comprises: pipe 2 in metal outer pipe 1, the ultra-high molecular weight polyethylene, preset Electric radiant Heating Film 3 in the above-mentioned interior pipe clamp layer; Because Electric radiant Heating Film is can be preferably bonding and area is bigger with polyethylene, can heat internal layer preferably, the Electric radiant Heating Film that is preset should can be heated with the oil in the pipe in guaranteeing on the one hand with interior at 2cm preferably apart from the bore side, and thicker interior external diameter of pipe can obtain heat insulation effect preferably on the one hand.
The above-mentioned Electric radiant Heating Film ground wire utmost point 4 that presets is exposed between interior pipe and the outer tube, and connect with metal outer pipe, can directly outer metal tube be used as ground wire between pipe and the outer tube in the electrode ground wire is arranged on, when distance only needs single-phase electricity when longer just can be to managing interior heating.
The live wire level of above-mentioned Electric radiant Heating Film connects on the lead that is embedded in the interior pipe; Pre-buried lead in the interior pipe, lead links to each other with the live wire level of Electric radiant Heating Film, and the entire circuit device is equivalent to heating resistor in parallel between two leads, and the long more resistance of pipeline is more little, and heating power is big more.
Above-mentioned metal outer pipe is a steel pipe; The main effect of metal outer pipe is the booster action of internal pipe on the one hand, and one side is as a polar conductor of heating film.
Electric radiant Heating Film 3 ends are connected with heat sensor and temperature controller.
In above-mentioned Electric radiant Heating Film just is compressed on when extrusion molding in the pipe; In being preset at when interior pipe moulding, Electric radiant Heating Film among the UHMWPE of pipe, can make heating film even.
Above-mentioned interior pipe by the size reducing machine undergauge after the sizing fairlead be pulled in the outer tube, mainly may further comprise the steps: at first select the ultrahigh molecular weight polyethylene tubing of its external diameter for use than the internal diameter big 2%～5% of selected steel pipe, make ultrahigh molecular weight polyethylene tubing pass through the size reducing machine undergauge then, make that the external diameter of ultrahigh molecular weight polyethylene tubing is more smaller than the internal diameter of steel pipe, under the effect of tractor, ultrahigh molecular weight polyethylene tubing enters into steel pipe by the sizing fairlead.After after a while, because of ultrahigh molecular weight polyethylene tubing has memory function, ultrahigh molecular weight polyethylene tubing will closely be combined with each other with steel pipe.
As Fig. 2, hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe comprises: pipe 2 in metal outer pipe 1, the ultra-high molecular weight polyethylene, preset Electric radiant Heating Film 3 between above-mentioned outer tube and the interior pipe; Electric radiant Heating Film 3 outsides are coated with the insulation heat transfer layer, itself and described in stickingly between the pipe 2 scribble metal dust heat-conducting medium layer, can guarantee on the one hand in oil in the pipe can be heated preferably, thicker interior external diameter of pipe can obtain heat insulation effect preferably on the one hand.The advantage of this mode is a handling ease, need not Electric radiant Heating Film 3 is joined in the interior pipe 2.
The above-mentioned Electric radiant Heating Film ground wire utmost point 4 that presets is exposed between interior pipe and the outer tube, and connect with metal outer pipe, can directly outer metal tube be used as ground wire between pipe and the outer tube in the electrode ground wire is arranged on, when distance only needs single-phase electricity when longer just can be to managing interior heating.
Above-mentioned metal outer pipe is a steel pipe; The main effect of metal outer pipe is the booster action of internal pipe on the one hand, and one side is as a polar conductor of heating film.
Electric radiant Heating Film 3 ends are connected with heat sensor and temperature controller.
In above-mentioned Electric radiant Heating Film just is compressed on when extrusion molding in the pipe; In being preset at when interior pipe moulding, Electric radiant Heating Film among the UHMWPE of pipe, can make heating film even.
Claims (6)
1, a kind of hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe, comprise: pipe in metal outer pipe, the ultra-high molecular weight polyethylene, it is characterized in that: the prescription of ultra-high molecular weight polyethylene following (percentage by weight): polyvinyl resin with super-high molecular weight 85-88 part, sliding agent 3-9 part, nucleator 0.1-1;
Wherein: preset Electric radiant Heating Film in the pipe clamp layer in described, Electric radiant Heating Film is coating the insulation heat transfer layer; The insulation heat transfer layer is selected from: insulating properties Heat Conduction Materials such as mica, quartz sand, tetrafluoroethylene, heat-conducting silicone grease, and preferred: heat-conducting silicone grease;
Described Electric radiant Heating Film end is connected with heat sensor and temperature controller;
The sticking metal dust heat-conducting medium layer that scribbles between the insulation heat transfer layer of described Electric radiant Heating Film and the described interior pipe;
2, hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe according to claim 1 is characterized in that: the described Electric radiant Heating Film ground wire utmost point that presets is exposed between interior pipe and the outer tube, and connects with metal outer pipe;
3, hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe according to claim 1 is characterized in that: the live wire level of described Electric radiant Heating Film connects on the lead that is embedded in the interior pipe;
4, according to the described hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe of claim 1-3, it is characterized in that: described metal outer pipe is common metal pipes such as steel pipe or copper pipe; Preferred copper pipe;
5, hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe according to claim 3 is characterised in that: in described Electric radiant Heating Film just is compressed on when extrusion molding in the pipe;
6, hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe according to claim 5 is characterised in that: described in pipe by the size reducing machine undergauge after the sizing fairlead be pulled in the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009100085206A CN101476447B (en) | 2009-02-02 | 2009-02-02 | Hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe |
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| CN2009100085206A CN101476447B (en) | 2009-02-02 | 2009-02-02 | Hot diaphragm type ultrahigh molecular weight polyethylene composite oil pumping pipe |
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| CN101476447A true CN101476447A (en) | 2009-07-08 |
| CN101476447B CN101476447B (en) | 2012-07-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089160A (en) * | 2011-11-08 | 2013-05-08 | 高玉森 | Sucker rod with ultra-high molecular weight polyethylene protective layer |
| CN104879576A (en) * | 2015-04-09 | 2015-09-02 | 克拉玛依市科能防腐技术有限责任公司 | Special polyethylene lining oil pipe manufacturing process |
| CN105101491A (en) * | 2014-05-25 | 2015-11-25 | 廊坊市爱帝工业控制技术有限公司 | Electric heating pipe |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1715612A (en) * | 2004-07-04 | 2006-01-04 | 金德健 | Inner oil tube with heater of underwell oil pumping pipe |
| CN1789654A (en) * | 2005-12-15 | 2006-06-21 | 江苏联冠科技发展有限公司 | Oil well oil-pumping tubing |
-
2009
- 2009-02-02 CN CN2009100085206A patent/CN101476447B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089160A (en) * | 2011-11-08 | 2013-05-08 | 高玉森 | Sucker rod with ultra-high molecular weight polyethylene protective layer |
| CN105101491A (en) * | 2014-05-25 | 2015-11-25 | 廊坊市爱帝工业控制技术有限公司 | Electric heating pipe |
| CN104879576A (en) * | 2015-04-09 | 2015-09-02 | 克拉玛依市科能防腐技术有限责任公司 | Special polyethylene lining oil pipe manufacturing process |
| 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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| Publication number | Publication date |
|---|---|
| CN101476447B (en) | 2012-07-18 |
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Owner name: JIANGSU LIANGUAN SCIENCE AND TECHNOLOGY DEVELOPMEN Free format text: FORMER OWNER: HUANG XUEXIANG Effective date: 20090821 |
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Effective date of registration: 20090821 Address after: Zhangjiagang City, Jiangsu province Sanxing bear Road No. 2 Fengzhen Jin post encoding: 215624 Applicant after: Jiangsu Lianguan Technology Development Co., Ltd. Address before: Zhangjiagang City, Jiangsu province Sanxing bear Road No. 2 Fengzhen Jin post encoding: 215624 Applicant before: Huang Xuexiang |
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