CN102620142A - Water film surface resistance-reduction ultra-viscous oil conveying technique - Google Patents
Water film surface resistance-reduction ultra-viscous oil conveying technique Download PDFInfo
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- CN102620142A CN102620142A CN2012101055394A CN201210105539A CN102620142A CN 102620142 A CN102620142 A CN 102620142A CN 2012101055394 A CN2012101055394 A CN 2012101055394A CN 201210105539 A CN201210105539 A CN 201210105539A CN 102620142 A CN102620142 A CN 102620142A
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Abstract
The invention relates to an easy-coagulation high-viscosity crude oil conveying technique, in particular to a water film surface resistance-reduction ultra-viscous oil conveying technique. The technique includes the steps: firstly, connecting a water film generator with an oil pipe; and secondly, filling water into the water film generator, feeding viscous oil through a body pipe of the water film generator to form an annular water film at a position close to the pipe wall, and changing water filling inlet speed of a water filling pipe of the water film generator to control the water content of the annular water film to range from 4% to 6%. The water film generator consists of the body pipe, the water filling pipe and a water film surface infiltration sieve pipe, and the water film surface infiltration sieve pipe is a cylindrical perforated plate and mounted in the body pipe. The annular water film which is low in water content, efficient and stable can be formed, the thickness of the water film can be adjusted according to different operating conditions, and accordingly viscous oil conveying cost is saved.
Description
Technical field:
The present invention relates to a kind of be prone to coagulate highly viscous crude delivery technology, particularly a kind of ultra viscous crude moisture film face drag reduction conveying technology.
Background technique:
Frictional resistance increase in the ubiquity pipe in ultra heavy oil pipeline transports at present; The phenomenon of carrying difficulty and energy consumption to rise day by day; Have a strong impact on pipeline transmission capacity and efficient; Therefore, develop the development trend that the defeated mode of collection that viscous crude resource and research and development save energy consumption more will become China oil gas field energetically.Moisture film oil transportation technology is that a kind of advanced pipeline is input into method.Moisture film carries frictional resistance very little, and oil transportation efficient is very high.A kind of advantages characteristic of this flowing state is that fluidised form is very stable in acceptable flow rates, water lubrication oil, can reduce discharge pressure loss greatly, the pressure loss and oil viscosity relation are little, this mode of movement is particularly suitable for moving highly viscous oil.
Density between two kinds of objectionable intermingling liquid is very close, but viscosity differences is very big.In transfer of highly viscous liquid process, make between tube wall and the high viscosity core flow (for example ultra viscous crude) with low viscous liquid (for example water) as the ring-type lubricating water film.Under certain operational condition, two kinds of fluids form the form of concentric pendular ring in pipe, and low viscosity fluid is forming liquid film near the tube wall place, therefore can avoid causing the higher pressure loss because of ultra viscous crude and tube wall directly contact.
But present ultra viscous crude moisture film face drag reduction conveying technology all has certain narrow limitation: 1, carry the formed annular moisture film moisture content of viscous crude higher, that is to say that water film thickness is bigger; 2, annular moisture film is unstable; 3, the import of moisture film generator and outlet diameter are inconsistent, are unfavorable for being applied on the pipeline of having built up; 4, the moisture film generator can not be according to different regulating working conditions water film thicknesses.
Summary of the invention:
The technical problem that the present invention will solve provides a kind of ultra viscous crude moisture film face drag reduction conveying technology, and this technology has realized forming the annular moisture film of low-water-content, efficient stable, and can practice thrift the heavy oil transportation cost according to different regulating working conditions water film thicknesses.Overcome that the annular moisture film moisture content that forms in the existing moisture film face drag reduction conveying technology is high, unstable, the moisture film generator can not be according to the deficiency of different regulating working conditions water film thicknesses.
The technological scheme that the present invention taked is: a kind of ultra viscous crude moisture film face drag reduction conveying technology, and this technological step is following: at first the moisture film generator is connected with oil pipe; Then with being full of water in the moisture film generator; Body tube through the moisture film generator pours viscous crude again; Forming annular moisture film near the tube wall place, this moment, the water injecting pipe water filling flow inlet speed through changing the moisture film generator was controlled at the moisture content of annular moisture film between the 4%-6%; Employed moisture film generator is made up of body tube, water injecting pipe and moisture film face infiltration screen casing in this technology; Moisture film face infiltration screen casing is columniform perforated plate; Moisture film face infiltration screen casing is installed in the body tube, and moisture film face infiltration screen casing front end leaves the 100mm distance does not have perforate, the even perforate of remaining part; Water injecting pipe is installed in the body tube outside and is connected with body tube through water injection hole, and the position of water injection hole is over against the not tapping of moisture film face infiltration screen casing front end.
Moisture film face infiltration screen casing adopts stainless steel material to process.
The thickness of moisture film face infiltration screen casing is 1mm.
Added the polyacrylic amide of 0.5%-1.5% in the water through the injection of moisture film generator water injecting pipe.
The invention has the beneficial effects as follows: the present invention is owing to adopted the moisture film generator and the aqueous solution that has added the polyacrylic amide of 0.5%-1.5% that moisture film face infiltration screen casing is installed; Thereby has a function of the annular moisture film that can form low-water-content, efficient stable; And can practice thrift the heavy oil transportation cost according to different regulating working conditions water film thicknesses.
Description of drawings:
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Fig. 1 is the structural representation of moisture film generator.
Fig. 2 is the structural representation of moisture film face infiltration screen casing.
Embodiment:
Like Fig. 1, shown in Figure 2, a kind of ultra viscous crude moisture film face drag reduction conveying technology, this technological step is following: at first the moisture film generator is connected with oil pipe; Then with being full of water in the moisture film generator; Body tube 1 through the moisture film generator pours viscous crude again; Forming annular moisture film near the tube wall place, this moment, the water injecting pipe 2 water filling flow inlet speed through changing the moisture film generator were controlled at the moisture content of annular moisture film between the 4%-6%; Employed moisture film generator is made up of body tube 1, water injecting pipe 2 and moisture film face infiltration screen casing 3 in this technology; Moisture film face infiltration screen casing 3 is columniform perforated plate; Moisture film face infiltration screen casing 3 is installed in the body tube 1, and moisture film face infiltration screen casing 3 front ends leave the 100mm distance does not have perforate, the even perforate of remaining part; Water injecting pipe 2 is installed in body tube 1 outside and is connected with body tube 1 through water injection hole, and the position of water injection hole is over against the not tapping of moisture film face infiltration screen casing 3 front ends.
Moisture film face infiltration screen casing 3 adopts stainless steel material to process.The thickness of moisture film face infiltration screen casing 3 is 1mm.
Added the polyacrylic amide of 0.5%-1.5% in the water through 2 injections of moisture film generator water injecting pipe.
It is understandable that; More than about specific descriptions of the present invention; Only be used to the present invention is described and be not to be subject to the described technological scheme of the embodiment of the invention; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention, to reach identical technique effect; As long as satisfy the use needs, all within protection scope of the present invention.
Claims (4)
1. ultra viscous crude moisture film face drag reduction conveying technology, it is characterized in that: this technological step is following: at first the moisture film generator is connected with oil pipe; Then with being full of water in the moisture film generator; Body tube (1) through the moisture film generator pours viscous crude again; Forming annular moisture film near the tube wall place, this moment, water injecting pipe (2) the water filling flow inlet speed through change moisture film generator was controlled at the moisture content of annular moisture film between the 4%-6%; Employed moisture film generator is made up of body tube (1), water injecting pipe (2) and moisture film face infiltration screen casing (3) in this technology; Moisture film face infiltration screen casing (3) is columniform perforated plate; Moisture film face infiltration screen casing (3) is installed in the body tube (1); Moisture film face infiltration screen casing (3) front end leaves the 100mm distance does not have perforate; The even perforate of remaining part, water injecting pipe (2) are installed in body tube (1) outside and are connected with body tube (1) through water injection hole, and the position of water injection hole is over against the not tapping of moisture film face infiltration screen casing (3) front end.
2. according to the described ultra viscous crude moisture film face drag reduction conveying technology of claim 1, it is characterized in that: said moisture film face infiltration screen casing (3) adopts stainless steel material to process.
3. according to the described ultra viscous crude moisture film face drag reduction conveying technology of claim 1, it is characterized in that: the thickness of said moisture film face infiltration screen casing (3) is 1mm.
4. according to the described ultra viscous crude moisture film face drag reduction conveying technology of claim 1, it is characterized in that: the polyacrylic amide that has added 0.5%-1.5% in the said water through moisture film generator water injecting pipe (2) injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101055394A CN102620142A (en) | 2012-04-11 | 2012-04-11 | Water film surface resistance-reduction ultra-viscous oil conveying technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012101055394A CN102620142A (en) | 2012-04-11 | 2012-04-11 | Water film surface resistance-reduction ultra-viscous oil conveying technique |
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| CN102620142A true CN102620142A (en) | 2012-08-01 |
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| CN2012101055394A Pending CN102620142A (en) | 2012-04-11 | 2012-04-11 | Water film surface resistance-reduction ultra-viscous oil conveying technique |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953076A (en) * | 2016-05-20 | 2016-09-21 | 西南石油大学 | Thick oil flowing resistance reducing device and method by injecting foam from screw groove hole |
| CN106764444A (en) * | 2017-01-06 | 2017-05-31 | 汪梦林 | Concrete pump delivery line lubricating coupler |
| CN108815900A (en) * | 2018-07-04 | 2018-11-16 | 西南石油大学 | A kind of viscous crude Liquid jacket transportation generator |
| CN108870081A (en) * | 2018-07-13 | 2018-11-23 | 广州大学 | A kind of thin fluid ring heavy oil transportation stabilising arrangement |
| CN110043232A (en) * | 2019-04-24 | 2019-07-23 | 西南石油大学 | A kind of thick oil underground well pendular ring generator based on hollow rod |
| CN114719193A (en) * | 2021-01-04 | 2022-07-08 | 中国石油化工股份有限公司 | Crude oil gathering and transportation pipe bundle resistance reduction method and crude oil gathering and transportation pipe bundle |
Citations (2)
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| CN1031597A (en) * | 1987-07-13 | 1989-03-08 | 康诺科有限公司 | Injection by the die-type coupler improves solubility property |
| WO2005100517A1 (en) * | 2004-04-13 | 2005-10-27 | Aubin Limited | Improved method and additive for the viscosity of crude oil |
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2012
- 2012-04-11 CN CN2012101055394A patent/CN102620142A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031597A (en) * | 1987-07-13 | 1989-03-08 | 康诺科有限公司 | Injection by the die-type coupler improves solubility property |
| WO2005100517A1 (en) * | 2004-04-13 | 2005-10-27 | Aubin Limited | Improved method and additive for the viscosity of crude oil |
Non-Patent Citations (2)
| Title |
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| 徐丽等: "水膜发生器的研制及流场分析", 《油气储运》 * |
| 马文鑫等: "超稠油水膜面减阻输送技术的数值模拟", 《辽宁石油化工大学学报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953076A (en) * | 2016-05-20 | 2016-09-21 | 西南石油大学 | Thick oil flowing resistance reducing device and method by injecting foam from screw groove hole |
| CN106764444A (en) * | 2017-01-06 | 2017-05-31 | 汪梦林 | Concrete pump delivery line lubricating coupler |
| CN108815900A (en) * | 2018-07-04 | 2018-11-16 | 西南石油大学 | A kind of viscous crude Liquid jacket transportation generator |
| CN108870081A (en) * | 2018-07-13 | 2018-11-23 | 广州大学 | A kind of thin fluid ring heavy oil transportation stabilising arrangement |
| CN108870081B (en) * | 2018-07-13 | 2019-11-12 | 广州大学 | A kind of thin fluid ring heavy oil transportation stabilising arrangement |
| CN110043232A (en) * | 2019-04-24 | 2019-07-23 | 西南石油大学 | A kind of thick oil underground well pendular ring generator based on hollow rod |
| CN110043232B (en) * | 2019-04-24 | 2021-08-20 | 西南石油大学 | Underground thick oil liquid ring generator based on hollow sucker rod |
| CN114719193A (en) * | 2021-01-04 | 2022-07-08 | 中国石油化工股份有限公司 | Crude oil gathering and transportation pipe bundle resistance reduction method and crude oil gathering and transportation pipe bundle |
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Application publication date: 20120801 |