CN105158446A - High-temperature-resisting and high-pressure-resisting sealing piston, piston rod combination and thickened oil high-pressure texture analyzer - Google Patents
High-temperature-resisting and high-pressure-resisting sealing piston, piston rod combination and thickened oil high-pressure texture analyzer Download PDFInfo
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- CN105158446A CN105158446A CN201510685157.7A CN201510685157A CN105158446A CN 105158446 A CN105158446 A CN 105158446A CN 201510685157 A CN201510685157 A CN 201510685157A CN 105158446 A CN105158446 A CN 105158446A
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- high pressure
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- 238000007789 sealing Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 7
- 229920006169 Perfluoroelastomer Polymers 0.000 claims description 6
- 239000004642 Polyimide Substances 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention provides a high-temperature-resisting and high-pressure-resisting sealing piston, a piston rod combination and a thickened oil high-pressure texture analyzer and relates to an oil field high-pressure texture analyzing device. The invention aims at providing the high-temperature-resisting and high-pressure-resisting sealing piston, the piston rod combination and the analyzer, which can be used for carrying out a thickened oil PVT experiment under high-temperature and high-pressure conditions. The high-temperature-resisting and high-pressure-resisting sealing piston comprises a piston main body, wherein an annular flange is arranged on the surface of the piston main body; the annular flange is vertical to the axis of the piston main body; and on the surface of the piston main body, a high-temperature and high-pressure retainer ring, a high-temperature and high-pressure sealing ring, a high-temperature and high-pressure retainer ring, a guide supporting ring and a fastening nut are tightly and symmetrically arranged at the left and right ends of the piston main body respectively by taking the annular flange as the center.
Description
Technical field
The present invention relates to oil field high pressure property analytical equipment, particularly relate to piston, stopper rod combination and analyser.
Background technology
In heavy crude heat extraction research, because viscosity of thickened oil is comparatively large, so need to inject the fluid far above formation temperature in thermal recovery process, the viscosity of high temperature dramatic impact resident fluid and physical property, need formation physical property of fluid to carry out measuring and studying.At present, domestic related experiment equipment maximum operating temperature is 180 DEG C, is generally only applicable to the rarer crude oil of viscosity and carries out PVT experiment; The PVT equipment maximum operating temperature of ST company of France is 240 DEG C, and under can not meeting high-temperature and high-pressure conditions, viscous crude PVT tests.
Summary of the invention
(1) the technical problem to be solved in the present invention is to provide and a kind ofly can meets the high temperature high voltage resistant packed-piston carrying out viscous crude PVT experiment under high-temperature and high-pressure conditions.
A kind of high temperature high voltage resistant packed-piston of the present invention, comprising: piston main body;
Described piston main body surface is provided with annular flange flange, and the axes normal of described annular flange flange and described piston main body is arranged;
In the surface of described piston main body, centered by annular flange flange, the two ends, left and right respectively to piston main body are closely symmetrically arranged with High Temperature High Pressure back-up ring, High Temperature High Pressure O-ring seal, High Temperature High Pressure back-up ring, guide support ring and clamp nut.
A kind of high temperature high voltage resistant packed-piston of the present invention, wherein said annular flange flange is equal apart from the distance at two ends, piston main body left and right.
A kind of high temperature high voltage resistant packed-piston of the present invention, wherein said High Temperature High Pressure back-up ring material is polyimide, and High Temperature High Pressure O-ring seal material is perfluoroelastomers.
High temperature high voltage resistant packed-piston difference with the prior art of the present invention is that the piston main body surface that the present invention comprises is provided with annular flange flange, and is closely provided with High Temperature High Pressure back-up ring, High Temperature High Pressure O-ring seal, High Temperature High Pressure back-up ring, guide support ring and front standby nut respectively in order in the left and right sides of flange; Wherein because High Temperature High Pressure back-up ring, High Temperature High Pressure O-ring seal have the characteristic of high-temperature-resistant high-pressure-resistant, therefore the present invention stands good under high temperature and high pressure environment.Generally speaking, the present invention can meet carry out viscous crude PVT experiment under high-temperature and high-pressure conditions.
(2) the technical problem to be solved in the present invention be to provide a kind of can meet carry out under high-temperature and high-pressure conditions viscous crude PVT experiment stopper rod combination.
A kind of stopper rod combination that have employed described high temperature high voltage resistant packed-piston of the present invention, also comprises piston rod;
The right side of described piston main body has connecting screw hole, and the left end of described piston rod is provided with connecting thread; Described piston main body and described piston rod are coordinated by screw and screw thread, screw and are integrated.
A kind of stopper rod combination of the present invention, also comprise a stop collar, described stop collar is arranged at the left side of described piston rod, and in screw with piston main body right side described in piston rod precession.
Stopper rod combination difference with the prior art of the present invention is that the piston main body surface that the present invention comprises is provided with annular flange flange, and is closely provided with High Temperature High Pressure back-up ring, High Temperature High Pressure O-ring seal, High Temperature High Pressure back-up ring, guide support ring and front standby nut respectively in order in the left and right sides of flange; Wherein because High Temperature High Pressure back-up ring, High Temperature High Pressure O-ring seal have the characteristic of high-temperature-resistant high-pressure-resistant, therefore the present invention stands good under high temperature and high pressure environment.Generally speaking, the present invention can meet carry out viscous crude PVT experiment under high-temperature and high-pressure conditions.
(3) the technical problem to be solved in the present invention is to provide and a kind ofly can meets the viscous crude high pressure property analyser carrying out viscous crude PVT experiment under high-temperature and high-pressure conditions.
Have employed a viscous crude high pressure property analyser for described stopper rod combination, comprising: sampler and analytical equipment; Wherein:
Described sampler comprises: piston cylinder and the combination of described stopper rod, be wherein provided with entry/exit gas port and take out/pouring orifice in the front end of piston cylinder; Described high temperature high voltage resistant packed-piston is arranged in described piston cylinder, and moves along piston cylinder axis direction under the drive of piston rod;
Described analytical equipment comprises: analyzer and induction chip; Described induction chip is embedded at described piston cylinder inwall, and its output terminal is connected with the input end of described analyzer.
Viscous crude high pressure property analyser of the present invention, also comprise a stop collar, described stop collar is arranged at the left side of described piston rod, and in screw with piston main body right side described in piston rod precession.
Viscous crude high pressure property analyser of the present invention, wherein said annular flange flange is equal apart from the distance at two ends, piston main body left and right.
Viscous crude high pressure property analyser of the present invention, wherein said High Temperature High Pressure back-up ring material is polyimide, and High Temperature High Pressure O-ring seal material is perfluoroelastomers.
The piston main body surface that the present invention comprises is provided with annular flange flange, and is closely provided with High Temperature High Pressure back-up ring, High Temperature High Pressure O-ring seal, High Temperature High Pressure back-up ring, guide support ring and front standby nut respectively in order in the left and right sides of flange; When there being pressure in piston cylinder inner chamber, the High Temperature High Pressure O-ring seal on the left of annular flange flange along with pressure distortion, can be filled the slight gap between piston cylinder and High Temperature High Pressure back-up ring, plays the effect of sealing; In like manner, the High Temperature High Pressure O-ring seal on the right side of annular flange flange plays the effect of secondary seal.Therefore the present invention can meet carry out viscous crude PVT experiment under high-temperature and high-pressure conditions.
Below in conjunction with accompanying drawing, high temperature high voltage resistant packed-piston of the present invention, stopper rod combination and viscous crude high pressure property analyser are further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of viscous crude high pressure property analyser of the present invention;
Fig. 2 is the partial enlarged drawing at P place in Fig. 1.
Embodiment
(1) high temperature high voltage resistant packed-piston
As shown in Figure 1, a kind of high temperature high voltage resistant packed-piston of the present invention, comprising: piston main body 2; Piston main body 2 outside surface is provided with annular flange flange, and wherein annular flange flange and piston main body axes normal are arranged, and annular flange flange is equal apart from the distance at piston main body about 2 two ends.
In the surface of described piston main body 2, centered by annular flange flange, the two ends, left and right respectively to piston main body 2 are closely symmetrically arranged with High Temperature High Pressure back-up ring 7 (8), High Temperature High Pressure O-ring seal 6 (9), High Temperature High Pressure back-up ring 5 (10), guide support ring 4 (11) and clamp nut 3 (12).
Guide support ring 4,11 pairs of piston main bodies 2 play the effect of guide support, and it can prevent piston main body 2 from occurring directly to contact and rub with piston cylinder 1 in motion process, play the effect that protection piston cylinder 1 is not worn with piston main body 2.Front standby nut 3/ standby nut 12 plays the effect of fixing High Temperature High Pressure back-up ring, guide support ring and High Temperature High Pressure O-ring seal, avoids them to come off from piston main body 2.High Temperature High Pressure back-up ring and High Temperature High Pressure O-ring seal have stronger high-temperature-resistant high-pressure-resistant performance, and wherein, High Temperature High Pressure back-up ring material is preferably polyimide, and High Temperature High Pressure O-ring seal material is preferably perfluoroelastomers.
(2) stopper rod combination
As shown in Figure 1, a kind of stopper rod combination of the present invention, except comprising described high temperature high voltage resistant packed-piston, also comprises piston rod 14 and stop collar 13; Wherein:
The right side of piston main body 2 has connecting screw hole, and the left end of piston rod 14 is provided with connecting thread; In the screw of stop collar 13 with piston rod 14 precession piston main body right side, piston main body 2 and piston rod 14 form threaded engagement, stop collar 13 pairs of piston main bodies 2 and piston rod 14 spacing locking.
(3) viscous crude high pressure property analyser
As shown in Figure 1, viscous crude high pressure property analyser of the present invention, comprising: sampler and analytical equipment; Wherein: sampler comprises: piston cylinder 1 and stopper rod combination, be wherein provided with entry/exit gas port 15 and take out/pouring orifice 17 in the front end of piston cylinder; High temperature high voltage resistant packed-piston is arranged in piston cylinder 1, and moves along piston cylinder axis direction under the drive of piston rod 14; Wherein in order to realize heat resisting and pressure resisting excellent performance of the present invention, High Temperature High Pressure back-up ring material is polyimide, and High Temperature High Pressure O-ring seal material is perfluoroelastomers.
Analytical equipment comprises: analyzer (not shown) and induction chip 16,18; Induction chip 16,18 is embedded at piston cylinder 1 inwall, and induction chip 16,18 output terminal is connected with the input end of analyzer respectively, is sent to analyzer will collect data.
Further, in order to keep stability and the leakproofness of piston main body, the annular flange flange arranged on piston main body 2 surface is equal apart from the distance at two ends, piston main body left and right.Front standby nut 3 screws the left end at piston main body 2, and the left side of front standby nut 3 flushes with the left side of piston main body 2; Standby nut 12 screws the right-hand member at piston main body 2, and the right side of standby nut 12 flushes with the right side of piston main body 2.The benefit of design like this is, avoids between the two ends, left and right of piston main body 2 and piston cylinder 1 and produces gap.
Further, in order to prevent occurring between piston main body 2 and piston rod 14 to loosen, a stop collar 13 is also provided with in the left side of piston rod 14, in the screw of stop collar 13 with piston rod 14 precession piston main body right side.
The process using the present invention to analyze viscous crude physical property is as follows:
That first opens piston cylinder front end takes out/pouring orifice, and pull back piston rod, along with moving backward of piston, viscous crude is sucked in piston cylinder;
Then closure piston cylinder front end take out/pouring orifice, driven forward piston rod, along with moving forward of piston rod, the viscous crude pressure in piston cylinder becomes large gradually, until when pressure reaches preset value, stop push piston rod; Therebetween, the pressure in piston cylinder measured by analytical equipment always, and by visual result reaction on analyzer display screen;
The high pressure property of ultimate analysis device to viscous crude is analyzed.
The piston main body surface that the present invention comprises is provided with annular flange flange, and is closely provided with High Temperature High Pressure back-up ring, High Temperature High Pressure O-ring seal, High Temperature High Pressure back-up ring, guide support ring and front standby nut respectively in order in the left and right sides of flange; When there being pressure in piston cylinder inner chamber, the High Temperature High Pressure O-ring seal on the left of annular flange flange along with pressure distortion, can be filled the slight gap between piston cylinder and High Temperature High Pressure back-up ring, plays the effect of sealing; In like manner, the High Temperature High Pressure O-ring seal on the right side of annular flange flange plays the effect of secondary seal.The present invention can meet 300 DEG C, carry out viscous crude PVT experiment under the high-temperature and high-pressure conditions of 100Mpa.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (9)
1. a high temperature high voltage resistant packed-piston, comprising: piston main body; It is characterized in that:
Described piston main body surface is provided with annular flange flange, and the axes normal of described annular flange flange and described piston main body is arranged;
In the surface of described piston main body, centered by annular flange flange, the two ends, left and right respectively to piston main body are closely symmetrically arranged with High Temperature High Pressure back-up ring, High Temperature High Pressure O-ring seal, High Temperature High Pressure back-up ring, guide support ring and clamp nut.
2. a kind of high temperature high voltage resistant packed-piston according to claim 1, is characterized in that: described annular flange flange is equal apart from the distance at two ends, piston main body left and right.
3. a kind of high temperature high voltage resistant packed-piston according to claim 1, is characterized in that: described High Temperature High Pressure back-up ring material is polyimide, and High Temperature High Pressure O-ring seal material is perfluoroelastomers.
4. one kind have employed the stopper rod combination of high temperature high voltage resistant packed-piston described in claim 1, it is characterized in that: also comprise piston rod;
The right side of described piston main body has connecting screw hole, and the left end of described piston rod is provided with connecting thread; Described piston main body and described piston rod are coordinated by screw and screw thread, screw and are integrated.
5. stopper rod according to claim 4 combination, is characterized in that: also comprise a stop collar, described stop collar is arranged at the left side of described piston rod, and in screw with piston main body right side described in piston rod precession.
6. have employed a viscous crude high pressure property analyser for stopper rod combination described in claim 4, comprising: sampler and analytical equipment; Wherein:
Described sampler comprises: piston cylinder and the combination of described stopper rod, be wherein provided with in the front end of piston cylinder and take out/pouring orifice and entry/exit gas port; Described high temperature high voltage resistant packed-piston is arranged in described piston cylinder, and moves along piston cylinder axis direction under the drive of piston rod;
Described analytical equipment comprises: analyzer and induction chip; Described induction chip is embedded at described piston cylinder inwall, and its output terminal is connected with the input end of described analyzer.
7. viscous crude high pressure property analyser according to claim 6, is characterized in that: also comprise a stop collar, described stop collar is arranged at the left side of described piston rod, and in screw with piston main body right side described in piston rod precession.
8. according to the viscous crude high pressure property analyser shown in claim 6, it is characterized in that: described annular flange flange is equal apart from the distance at two ends, piston main body left and right.
9. according to the viscous crude high pressure property analyser shown in claim 6, it is characterized in that: described High Temperature High Pressure back-up ring material is polyimide, and High Temperature High Pressure O-ring seal material is perfluoroelastomers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685157.7A CN105158446B (en) | 2015-10-20 | 2015-10-20 | High temperature high voltage resistant sealing piston, stopper rod combination and viscous crude high pressure property analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685157.7A CN105158446B (en) | 2015-10-20 | 2015-10-20 | High temperature high voltage resistant sealing piston, stopper rod combination and viscous crude high pressure property analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105158446A true CN105158446A (en) | 2015-12-16 |
| CN105158446B CN105158446B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510685157.7A Expired - Fee Related CN105158446B (en) | 2015-10-20 | 2015-10-20 | High temperature high voltage resistant sealing piston, stopper rod combination and viscous crude high pressure property analyzer |
Country Status (1)
| Country | Link |
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| CN (1) | CN105158446B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594285A (en) * | 2017-02-22 | 2017-04-26 | 扬州华宝石油仪器有限公司 | Digital hydraulic adjustment sealing structure |
| CN107017515A (en) * | 2017-03-31 | 2017-08-04 | 中航光电科技股份有限公司 | A kind of sealing structure and the rotary connector using the sealing structure |
| CN107218152A (en) * | 2017-07-27 | 2017-09-29 | 叶明� | Compression ratio plug structure applied to diesel cetane-number measuring machine |
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2015
- 2015-10-20 CN CN201510685157.7A patent/CN105158446B/en not_active Expired - Fee Related
Patent Citations (10)
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|---|---|---|---|---|
| US6302405B1 (en) * | 1999-06-24 | 2001-10-16 | Schlumberger Technology Corporation | Anti-extrusion seal |
| CN2613754Y (en) * | 2003-04-18 | 2004-04-28 | 石油大学(华东)石油仪器仪表研究所 | Preheatable constant-temp. three axial stress core holder |
| CN2791633Y (en) * | 2005-03-18 | 2006-06-28 | 中海油田服务股份有限公司 | Super-high-pressure fluid portable sampling tube |
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| CN106594285A (en) * | 2017-02-22 | 2017-04-26 | 扬州华宝石油仪器有限公司 | Digital hydraulic adjustment sealing structure |
| CN107017515A (en) * | 2017-03-31 | 2017-08-04 | 中航光电科技股份有限公司 | A kind of sealing structure and the rotary connector using the sealing structure |
| CN107218152A (en) * | 2017-07-27 | 2017-09-29 | 叶明� | Compression ratio plug structure applied to diesel cetane-number measuring machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105158446B (en) | 2017-12-12 |
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Granted publication date: 20171212 |