CN1699822A - Dehydrated ultra thick oil pipeline transportation method and corollary arrangement - Google Patents
Dehydrated ultra thick oil pipeline transportation method and corollary arrangement Download PDFInfo
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- CN1699822A CN1699822A CN 200510046519 CN200510046519A CN1699822A CN 1699822 A CN1699822 A CN 1699822A CN 200510046519 CN200510046519 CN 200510046519 CN 200510046519 A CN200510046519 A CN 200510046519A CN 1699822 A CN1699822 A CN 1699822A
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Abstract
The invention relates to an apparatus and method for pipeline transportation of the dehydrating super heavy crude which belongs to the art of pipeline crude transportation. The invention adopts the thermal insulating pipeline with skin effect, having fuel delivery pump, filter and heat exchanger installed on the oil pipelines which are lay under the ground; performing pre-heating before transportation, injecting oil after the water temperature in the pipeline comes to 75 degree. The method can ensure transporting dehydrating heavy crude in the pipeline of 30 kilometers length and 406 millimeters diameter.
Description
Technical field:
The invention belongs to pipeline Crude Oil Transportation technical field, particularly a kind of dehydrated ultra thick oil pipeline transportation method and match equipment.
Background technique:
At present, the super heavy oil production in Liaohe Oil Field has reached 2,000,000 tons/year, super viscous crude is because viscosity is big, the defeated automobile roping mode that always adopts of the big collection of pipe friction, seriously restricted the production of super viscous crude, the defeated process engineering of super viscous crude pipe is carried out the defeated technical study of super viscous crude pipe, mainly solve the environmental pollution that automobile roping mode is brought, serial problems such as traffic obstruction and oil loss, the viscous crude pipe is failed research work in Canada at present, viscous crude big countries such as Venezuela, obtain certain progress, and some technology comparative maturities, the main employing mixed conveying of fraction oil and the defeated technology of heat etc., but super merely heavy oil transportation yet there are no report at home and abroad.Data finding by retrieval:
1, daybreak one district super heavy oil pipeline heating power gathering-transferring technology research: special reservoirs 2002.9 (6) surplus five-pointed stars, Zheng Nanfang
The super viscous crude pipe opinion in the wrong that the Liaohe Oil Field branch company is pointed out has successfully solved the oil transportation of the pressure certainly technology between production platform, and defeated outward main line adopts yellow jacket tube, collection efficient companion hot mode, should super viscous crude be moisture super viscous crude, super viscous crude be moisture more than 70%, and the wall scroll pipeline is carried and is no more than 2.7 kilometers.
2, the application pre-test of submarine pipeline skin-effect electric heating in the oil gas field of south, the Bohai Sea.
China offshore oil and gas (engineering) 2003.15 (2) Guo Xiucui
The 13-1 platform submarine pipeline that the 26-2 platform is carried oil gas in Bohai Sea needs companion's heat apart from 13 kilometers of tail ends in the Bohai Sea.Skin-effect electric heating is fit to long-distance pipe companion heat, does not also have mature experience but be used for submarine pipeline in the world.
3、thermally?Insulated?Pipelines?woo//07824A1
This world patent is a kind of pipe insulation device, and wherein internal pipeline is a polyurethane foam by the annular space part filled heat insulating material that one deck jacket and outer cover separate between inner layer pipe and the jacket, is pressurized gas between jacket and the jacket layer.Jacket has the space result to be passed through from thermal insulation layer to allow gas.
Chisso engineering company has developed the skin-effect electric heating system; be applied in Korea S's seabed heavy oil transportation pipeline; snam company has developed electrical tracing Skin effect heating system; be applied in heating pipe and realize the line transportation of hyperviscosity viscous crude; above-mentioned super viscous crude all adopts at course of conveying and mixes the small diluted amount agent; reach emulsifier and under aqueous conditions, carry out delivery method; and pipeline is polyurethane foam insulation; the present invention uses the dehydrated ultra thick oil conveyance conduit; and polyurethane foam yellow jacket protection heatproof more than 130 ℃ technology and pipeline Skin effect companion thermal technology be applied to dehydrated ultra thick oil pipe insulation and companion's heat, no matter pipeline distance and delivery method are all above the index of 85 ℃ of general polyurethane foam heatproofs.
According to external report, fed sheet of a media is mainly general viscous crude crude oil and rock gas, and the kinetic viscosity (80 ℃) of the dehydration viscous crude that the present invention carries reaches 5464.3mpa.s, coagulates with 48 ℃ of points and above-mentioned retrieval of content fundamental difference.
The present invention has retrieved following document:
petrolerm?abstracts 1984～2004.6
Foreign oil and rock gas Digest Database 1986～2004
Chinese science and technology periodical 1989～2004.3
CNPC's digest 1985～2004.3
Chinese patent database 1985～2004
Meeting paper full-text database 1999～2004
The U. S. Patent database
The European patent database
Cnpc scientific and technological achievement database
Joint-stock company of CNPC scientific and technological achievement database
Summary of the invention:
The object of the invention is in order to overcome above-mentioned shortcoming, and a kind of dehydrated ultra thick oil pipeline transportation method and the match equipment thereof that provide.
This technology is meant that viscous crude grows a kind of method and the match equipment thereof that distance is carried to super viscous crude behind thermo-chemical setting dihydration.
It is by to choose reasonable oil transport pipeline and the pipe insulating layer through optimizing, and heat exchanger, oil well pump match equipment, and uses the Skin effect electric-heating technology in the oil transportation process, implements a kind of method that the long distance of dehydrated ultra thick oil is carried.
The present invention realizes like this
Dehydration thick oil pipeline transportation method of the present invention for achieving the above object comprises the steps:
1, at first is the spiral submerged arc welded steel pipe skin hard polyurethane fat foam yellow jacket insulation of L360 millimeter in pipeline specifications, and in thermal insulation layer, put into Skin effect and accompany hot device, then in the petroleum pipeline of forming thus water-filling and stand between logical ball cleaning and pipeline intensity work pressure test.
2, to the petroleum pipeline water-filling and adopt Skin effect companion thermal process to give heating coil.
The water discharge capacity was controlled at 75 meters when oil transfer pump was suppressed
3/ h heats to pipeline behind the complete water-filling of petroleum pipeline again, make water temperature in the whole piece pipeline rise to about 75 ℃～80 ℃ by 10 ℃ of initial temperatures till.
3, should begin to throw oily transportation work under the following conditions behind the petroleum pipeline heating coil.
I out-station temperature 〉=90 ℃, inlet temperature 〉=80 ℃
Ii pipeline overall coefficient of heat transfer K≤0.68w/m
2.c
Iii oil transportation amount 〉=130m
3/ h (V 〉=0.30m/s)
Implementing its match equipment of applied pipeline transportation method of the present invention is:
Institute's petroleum pipeline adopts L360 spiral submerged arc welded steel pipe; with steel band through the spiral roll-forming; carrying out submerged arc welding then forms; steel pipe is outer with the yellow jacket thermal insulation layer of modified polyurethane foam; 150 ℃ of its thermal insulation layer heatproofs; thickness is 60 millimeters, and it is 3 millimeters～3.5 millimeters that the thermal insulation layer external protection has adopted the yellow jacket of polyethylene to smear thickness.
Heat exchanger is the double hose floating head heat exchanger, heat exchange area: 390m
3, overall coefficient of heat transfer 50w/ (m
2.k), heat exchange efficiency 80%.
The viscous crude filter adopts conventional cartridge type strap clamp cover companion heat filter, screen specification 3～611.
Skin effect is accompanied hot device thermal insulation apparatus, be to imbed a heat traced pipeline in the yellow jacket thermal insulation layer of polyurethane in the petroleum pipeline skin as mixing the heat pipe cable of in metal tube, packing into then, end feeds electric current, and the alternation thermal field Skin effect that is produced on tube wall by alternating current heats up to output oil in the pipeline.
Oil transfer pump: the high pressure two screw pump that the super viscous crude output pump after the dehydration adopts Tianjin pump industry group company to produce, model: HPW220～37, pressure reduction 6.0mpa, rotating speed: 960r/min, air horsepower: 290kw, flow: 86m
3/ h, motor label YB355LZ-6, proud power flame-proof type threephase asynchronous pump power: 315KW.
The present invention compared with prior art has distinguishing feature:
The present invention more is difficult to characteristics in line transportation according to the general viscous crude of dehydration viscous crude, makes the dehydration viscous crude keep the hot operation state to make oily stream have good mobility in course of conveying all the time thereby adopted in the solution that is utilizing Skin effect companion thermal technology science on the oil transport pipeline.The dehydration viscous crude is carried once success in the pipeline of kilometer surplus 30.
The present invention has also adopted the heating coil technology of giving in addition, promptly throw in the transport pipe to give before the oil and in pipe, charge into earlier a certain amount of aqueous medium, with the heating of Skin effect oil supply pipeline, line temperature can be remained under 75 ℃ of left and right sides conditions throw oil then, thereby improved the oil transportation timeliness, and reduced energy consumption.
The characteristics that match equipment had of implementing this method are:
This oil transport pipeline has adopted L360 spiral submerged arc welded steel pipe, owing to do not contain acidic materials in super viscous crude (dehydration viscous crude) oil product, if conveyance conduit adopts seamless steel pipe, it costs an arm and a leg, and is uneconomical again, has adopted spiral submerged arc steel pipe when therefore selecting for use, this pipe is made type for circle, after submerged arc welding forms, has pipe diameter easily to adjust, stressed even, local deformation is little in the welding process, the strong characteristics of crack arrest ability, in addition, price is low, can satisfy the heavy oil transportation condition.
In the structure of oil transport pipeline, adopt skin in addition at oil pipe; be added with the yellow folder of the hardness polyurethane foam thermal insulation layer of one 60 millimeters thickness; the cable core that will have metal tube then in skin buries in the middle of thermal insulation layer; be coated with the yellow clipping layer protective layer of 3 millimeters polyethylene in the thermal insulation layer appearance again, utilize the thermal insulation layer effect of this transport pipe structure can reduce radiation loss expense 1/3 than 40,50,70 millimeters same thermal insulation layers.
Because heat exchanger is as the heating heat transmission equipment of the super viscous crude in petroleum transferring station dehydration back, medium is heated, be prone to the tube side coking, reduce the thermal efficiency, even burn out the boiler tube phenomenon, therefore the present invention selects the two-tube-pass shell and tube type floating head heat exchanger in the wall-type heat exchange device class for use, and this heat exchanger heat exchange area is 390m greatly
2, overall coefficient of heat transfer 50w/ (m
2.k), heat exchange efficiency 80%.
Filter is the device that is positioned at oil well pump the place ahead, because dehydration viscous crude character, the temperature of carrying in this oil transport pipeline are different with the common heavy oil medium with pressure, therefore a kind of suitable raising viscosity, the conventional formula band cover of the super viscous crude of high-solidification point companion heat filter have been adopted, can more help improving the pump intake medium temperature like this, improve the suction condition of pump, stop the media flow phenomenon for preventing in addition, the spy changes filter screen into 3 orders by 6 orders, efficiently solves the suction problem of pump.
Oil well pump, as the super viscous crude output pump after the dehydration application precedent is not arranged as yet at home, the present invention adopts the high pressure two screw pump performance of HPW220～37 models to have following feature: energy smooth operation during a 6.5m vacuum, the pump vibration is satisfied, the JB/T8097-1999 regulation, and noise is less than 95DB (A), leakage rate is not more than 10ml/h, pump Maximum differential pressure 7.0mpa, pump efficiency can satisfy the long distance of dehydration viscous crude and carry greater than 60.5%.
Dehydration heavy oil transportation method of the present invention and match equipment have been realized real meaning pipe long-distance conveying, solved not station employing automobile roping, the production difficult problem of the super viscous crude of serious restriction reaches pollution that the automobile roping brought and oil loss and to the influence of production safety.
Description of drawings:
Among the figure: process flow diagram of the present invention.
Among the figure by 1, filter, 2, oil well pump, 3, thermal insulation layer, 4, Skin effect accompanies hot device, 5, the intermediate heat pumping plant, 6, transport pipe, 7, terminal, 8, heat exchanger, 9, protective layer, 10, at first stop, 11, steel pipe forms.
Embodiment:
The present invention is provided by following examples, below in conjunction with accompanying drawing the present invention is described further.
Embodiment one
No. 2 station to super viscous crude petroleum pipelines of Liaohe River petro-chemical corporation of the special oil of first the super viscous crude petroleum pipeline dawn in world's on October 1st, 2004 are constructed and put into operation.This project purpose is to supply raw materials for Liaohe River petro-chemical corporation delayed coking unit, adopts following method during the dehydration heavy oil transportation:
This project starting point is positioned at special oily No. 2 initial station, and 10 terminate in the terminal 7 of petro-chemical corporation's (oil refinery), super viscous oil area pipeline oil transportation ability 100 * 14
4t/ a, have initial station 10, intermediate heat pumping plant 5 and oil pipeline terminal 7 and 26 kilometers petroleum pipelines, and outfit Skin effect companion thermic devices 4, No. 2 stations of the special oil of dawn viscous crude are super oily when 50 ℃ of temperature, and viscosity 115893.0mpa.s petroleum pipeline has used homemade L360 spiral submerged arc welded steel pipe, 7.9 millimeters of wall thickness, use this steel pipe from the caliber frictional resistance, the more economical rationality of comparing with similar D 457.0 specification steel pipes of diameter of steel tube and conveying equipment.
At the petroleum pipeline skin hard polyurethane fat foam yellow jacket thermal insulation layer is housed, accompanies Skin effect in this layer and accompany hot device 4, skin is coated with the yellow jacket protective coating 9 of the polyethylene of 3 millimeters thick.
Skin effect companion thermic devices 4 is housed in the middle of described hard polyurethane fat vacuole foam protective layer.
An oil transfer pump 2 is housed in the described initial station 10, and this pump is a high pressure two screw pump, (model: HPW220～37, pump power 315KW) and heat exchanger 9 and filter 1.
Described petroleum pipeline is also established respectively one of intermediate heat pumping plant 5 and terminal 7 in middle location except that initial station 1 is, the effect of intermediate heat pumping plant is to the piped oil additional heat by an oil transfer pump and heat exchanger.
Before throwing oil, at first petroleum pipeline is given the heating coil insulation during oil transportation, by initial station 1 oil transfer pump 26 water-fillings in the transport pipe, the pressurization treat pressure reach certain value be the pipeline pressure testing qualified after, accompany hot device to the petroleum pipeline heating coil of powering by Skin effect then, when whole pipeline rises to 75 ℃ of left and right sides by initial temperature, begin again to throw oil toward petroleum pipeline, at this moment, by oil transfer pump 2 dehydrated ultra thick oil is injected in the transport pipe 6 through filter 1 and heat exchanger 8, oil stream is through intermediate heat pumping plant 5 time, the heat energy that can obtain to replenish continues as the interior viscous crude of pipeline and heats, and oil flows in the terminal 7 to end, (even oil refinery).So far can finish the line transportation work of dehydrated ultra thick oil.
Embodiment 2
The present invention has used dehydrated ultra thick oil buried-pipe laying pipeline corrosion protection, insulating structure and petroleum pipeline Skin effect companion heat are by intermediate heat pumping plant 5 supplementary heating modes, therefore in the oil transportation process, not influenced by terrain environment and cooling, can oil transportation success in 30 kilometers long defeated processes.
Claims (3)
1, a kind of dehydrated ultra thick oil pipeline transportation method is characterized in that described delivery method comprises the steps:
1. at first be the spiral submerged arc welded steel pipe skin hard polyurethane fat foam yellow jacket insulation of L360 millimeter in pipeline specifications, and in thermal insulation layer, put into Skin effect and accompany hot device, then in the petroleum pipeline of forming thus water-filling and stand between logical ball cleaning and pipeline intensity work pressure test;
2. to the petroleum pipeline water-filling and adopt Skin effect companion thermal process to give heating coil,
The water discharge capacity was controlled at 75 meters when oil transfer pump was suppressed
3/ h heats to pipeline behind the complete water-filling of petroleum pipeline again, make water temperature in the whole piece pipeline rise to about 75 ℃～80 ℃ by 10 ℃ of initial temperatures till;
3. should begin to throw oily transportation work under the following conditions behind the petroleum pipeline heating coil,
I out-station temperature 〉=90 ℃, inlet temperature 〉=80 ℃
Ii pipeline overall coefficient of heat transfer K≤0.68w/m
2.c
Iii oil transportation amount 〉=130m
3/ h (V 〉=0.30m/s)
2, a kind of match equipment of implementing claim 1; it is characterized in that the spiral submerged arc welded steel pipe (11) that petroleum pipeline adopts; be behind the spiral roll-forming, to carry out submerged arc welding again with steel band to form; the outer thermal insulation layer (3) of steel pipe with 150 ℃ of the yellow jacket heatproofs of modified polyurethane foam; its thickness is 60 millimeters, and it is 3 millimeters～3.5 millimeters that thermal insulation layer external protection (9) has adopted the yellow jacket of polyethylene to smear thickness.
Heat exchanger (8) adopts two-tube shell-type floating head heat exchanger, this heat exchanger heat exchange area 390m
2, overall coefficient of heat transfer 50w/ (m
2.k), heat exchange efficiency 80%; Viscous crude filter (1) adopts conventional cartridge type strap clamp cover companion heat filter, screen specification 3～6 orders; It is to imbed a metal pipe line in the yellow jacket thermal insulation layer of polyurethane foam in the skin of petroleum pipeline (6) as mix heat pipe and cable one end of packing into feeds electric current in metal tube that Skin effect is accompanied hot device (4), utilizes the Skin effect of the alternation thermal field that alternating current produced on tube wall to heat up to oil transportation;
Oil transfer pump (6): the high pressure two screw pump that the super viscous crude output pump after the dehydration adopts Tianjin pump industry group company to produce, model: HPW220～37, pressure reduction 6.0mpa, rotating speed: 960r/min, air horsepower: 290kw, flow: 86m
3/ h, motor label YB355LZ-6, proud power flame-proof type threephase asynchronous pump power: 315KW.
3, applied pipeline transportation method according to claim 1 is characterized in that described transport pipe (6) adopts buried-pipe laying mode of heating anticorrosion and that utilize Skin effect companion's thermal technology and intermediate heat pumping plant 5 to replenish heat energy to carry out oil transportation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100465194A CN100436932C (en) | 2005-05-24 | 2005-05-24 | Dehydrated ultra thick oil pipeline transportation method and corollary arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100465194A CN100436932C (en) | 2005-05-24 | 2005-05-24 | Dehydrated ultra thick oil pipeline transportation method and corollary arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN1699822A true CN1699822A (en) | 2005-11-23 |
| CN100436932C CN100436932C (en) | 2008-11-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051462A (en) * | 2016-08-03 | 2016-10-26 | 常州大学 | Surfactant drag-reduction pipe capable of obtaining maximum drag reduction rate automatically |
| CN106641726A (en) * | 2016-11-21 | 2017-05-10 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline stirring rod |
| CN108561658A (en) * | 2018-04-20 | 2018-09-21 | 林继承 | A kind of oil transportation method |
| CN114561721A (en) * | 2022-03-03 | 2022-05-31 | 新疆隆炬新材料有限公司 | Drying system, drying method of fibrous material and carbon fiber production system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59118000A (en) * | 1982-12-24 | 1984-07-07 | Dainichi Seika Kogyo Kk | Transport apparatus for high-viscosity substance |
| JPH0612160B2 (en) * | 1987-10-16 | 1994-02-16 | 大平洋機工株式会社 | Method for pipe-transporting highly viscous materials by transport pump |
| CN1060853C (en) * | 1996-06-27 | 2001-01-17 | 徐长安 | Flow-controlled crude oil pipe-conveying method |
| US5894742A (en) * | 1997-09-16 | 1999-04-20 | L'air Liquide, Societe Anonyme Pour L'etude Et, L'exploitation Des Procedes Georges Claude | Methods and systems for delivering an ultra-pure gas to a point of use |
| CN1258054C (en) * | 2004-04-27 | 2006-05-31 | 浙江大学 | Rotating liquid ring pipeline delivery method and equipment for high viscosity fluid |
-
2005
- 2005-05-24 CN CNB2005100465194A patent/CN100436932C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051462A (en) * | 2016-08-03 | 2016-10-26 | 常州大学 | Surfactant drag-reduction pipe capable of obtaining maximum drag reduction rate automatically |
| CN106051462B (en) * | 2016-08-03 | 2018-02-02 | 常州大学 | The automatic surfactant drag reduction pipe for obtaining highest drag reducing efficiency |
| CN106641726A (en) * | 2016-11-21 | 2017-05-10 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline stirring rod |
| CN108561658A (en) * | 2018-04-20 | 2018-09-21 | 林继承 | A kind of oil transportation method |
| CN114561721A (en) * | 2022-03-03 | 2022-05-31 | 新疆隆炬新材料有限公司 | Drying system, drying method of fibrous material and carbon fiber production system |
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|---|---|
| CN100436932C (en) | 2008-11-26 |
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Address after: 124010 No. 98, oil street, Xinglongtai District, Liaoning, Panjin Patentee after: LIAOHE PETROLEUM EXPLORATION BUREAU Co.,Ltd. Address before: 124010 Xinglongtai District, Liaoning, Panjin Patentee before: Liaohe Petroleum Exploration Bureau |
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Effective date of registration: 20210302 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: LIAOHE PETROLEUM EXPLORATION BUREAU Co.,Ltd. Address before: 124010 No. 98, oil street, Xinglongtai District, Liaoning, Panjin Patentee before: LIAOHE PETROLEUM EXPLORATION BUREAU Co.,Ltd. |