CN105158446B - High temperature high voltage resistant sealing piston, stopper rod combination and viscous crude high pressure property analyzer - Google Patents
High temperature high voltage resistant sealing piston, stopper rod combination and viscous crude high pressure property analyzer Download PDFInfo
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- CN105158446B CN105158446B CN201510685157.7A CN201510685157A CN105158446B CN 105158446 B CN105158446 B CN 105158446B CN 201510685157 A CN201510685157 A CN 201510685157A CN 105158446 B CN105158446 B CN 105158446B
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Abstract
High temperature high voltage resistant sealing piston, stopper rod combination and viscous crude high pressure property analyzer of the present invention are related to oil field high pressure property analytical equipment.Its purpose is to provide to disclosure satisfy that the high temperature high voltage resistant sealing piston for carrying out viscous crude PVT experiments under high-temperature and high-pressure conditions, stopper rod combination and analyzer.A kind of high temperature high voltage resistant sealing piston of the present invention, including：Piston main body；The piston main body surface is provided with annular flange, and the annular flange and the axis of the piston main body are vertically arranged；In the surface of the piston main body, centered on annular flange, HTHP back-up ring, HTHP sealing ring, HTHP back-up ring, guide support ring and clamp nut are closely symmetrically arranged with to the left and right ends of piston main body respectively.
Description
Technical field
The present invention relates to oil field high pressure property analytical equipment, more particularly to the combination of piston, stopper rod and analyzer.
Background technology
In heavy crude heat extraction research, because viscosity of thickened oil is larger, so, need injection to be far above during oil recovery by heating
The fluid of formation temperature, the viscosity and physical property of high temperature dramatic impact formation fluid to formation fluid physical property, it is necessary to enter
Row measurement and research.At present, domestic related experiment equipment maximum operating temperature is 180 DEG C, and it is diluter to be typically only applicable to viscosity
Crude oil carries out PVT experiments；The PVT equipment maximum operating temperature of French ST companies is 240 DEG C, can not meet high-temperature and high-pressure conditions
Lower viscous crude PVT experiments.
The content of the invention
(1) it disclosure satisfy that the technical problem to be solved in the present invention is to provide one kind and viscous crude carried out under high-temperature and high-pressure conditions
The high temperature high voltage resistant sealing piston of PVT experiments.
A kind of high temperature high voltage resistant sealing piston of the present invention, including：Piston main body；
The piston main body surface is provided with annular flange, and the annular flange is vertical with the axis of the piston main body
Set；
It is closely right to the left and right ends of piston main body respectively centered on annular flange in the surface of the piston main body
Title is provided with HTHP back-up ring, HTHP sealing ring, HTHP back-up ring, guide support ring and clamp nut；Two phases
The adjacent HTHP back-up ring clamps the HTHP sealing ring, and the guide support ring set is located on the piston main body,
The guide support ring is bonded the HTHP back-up ring close to one end of the annular flange, and the guide support ring is away from institute
The one end for stating annular flange connects the clamp nut.
A kind of high temperature high voltage resistant sealing piston of the present invention, wherein distance of the annular flange away from piston main body left and right ends
It is equal.
A kind of high temperature high voltage resistant sealing piston of the present invention, wherein the HTHP back-up ring material is polyimides, high temperature
High-pressure seal ring material is perfluoroelastomers.
High temperature high voltage resistant sealing piston difference with the prior art of the present invention is the piston main body surface that the present invention includes
Annular flange is provided with, and HTHP back-up ring, HTHP are closely provided with sequence respectively in the left and right sides of flange
Sealing ring, HTHP back-up ring, guide support ring and preceding standby nut；Wherein due to HTHP back-up ring, HTHP sealing ring
Characteristic with high-temperature-resistant high-pressure-resistant, therefore the present invention stands good under high temperature and high pressure environment.Sum it up, the present invention can
Meet to carry out viscous crude PVT experiments under high-temperature and high-pressure conditions.
(2) it disclosure satisfy that the technical problem to be solved in the present invention is to provide one kind and viscous crude carried out under high-temperature and high-pressure conditions
The stopper rod combination of PVT experiments.
A kind of stopper rod combination for employing the high temperature high voltage resistant sealing piston of the present invention, in addition to piston rod；
The right side of the piston main body is provided with connecting screw hole, and the left end of the piston rod is provided with connection screw thread；It is described
Piston main body, by the cooperation of screw and screw thread, is screwed and is integrated with the piston rod.
A kind of stopper rod combination of the present invention, in addition to a locating snap ring, the locating snap ring are arranged at the left side of the piston rod,
And with described in piston rod precession in the screw of piston main body right side.
Stopper rod combination difference with the prior art of the present invention is that the piston main body surface that the present invention includes is provided with annular
Flange, and closely it is provided with HTHP back-up ring, HTHP sealing ring, high temperature in sequence respectively in the left and right sides of flange
High pressure back-up ring, guide support ring and preceding standby nut；Wherein because HTHP back-up ring, HTHP sealing ring have high temperature resistant resistance to
The characteristic of high pressure, therefore the present invention stands good under high temperature and high pressure environment.Sum it up, the present invention disclosure satisfy that in high temperature height
Viscous crude PVT experiments are carried out under the conditions of pressure.
(3) it disclosure satisfy that the technical problem to be solved in the present invention is to provide one kind and viscous crude carried out under high-temperature and high-pressure conditions
The viscous crude high pressure property analyzer of PVT experiments.
A kind of viscous crude high pressure property analyzer for employing the stopper rod combination, including：Sampler and analytical equipment；Its
In：
The sampler includes：Piston cylinder and stopper rod combination, wherein being provided with entry/exit gas in the front end of piston cylinder
Mouthful and take out/pouring orifice；The high temperature high voltage resistant sealing piston is arranged in the piston cylinder, and is lived in the drive lower edge of piston rod
Plug tube axis direction moves；
The analytical equipment includes：Analyzer and induction chip；The induction chip is embedded at the piston cylinder inwall, and
Its output end is connected with the input of the analyzer.
Viscous crude high pressure property analyzer of the present invention, in addition to a locating snap ring, the locating snap ring are arranged at the piston rod
Left side, and with described in piston rod precession in the screw of piston main body right side.
Viscous crude high pressure property analyzer of the present invention, wherein distance phase of the annular flange away from piston main body left and right ends
Deng.
Viscous crude high pressure property analyzer of the present invention, wherein the HTHP back-up ring material is polyimides, HTHP
Sealing ring material is perfluoroelastomers.
The piston main body surface that the present invention includes is provided with annular flange, and in the left and right sides of flange difference in sequence
Closely it is provided with HTHP back-up ring, HTHP sealing ring, HTHP back-up ring, guide support ring and preceding standby nut；Work as work
When having pressure in plug tube inner chamber, the HTHP sealing ring on the left of annular flange can fill piston cylinder and height with pressure distortion
Slight gap between warm high pressure back-up ring, plays a part of sealing；Similarly, the HTHP sealing ring on the right side of annular flange plays
The effect of secondary seal.Therefore the present invention disclosure satisfy that the progress viscous crude PVT experiments under high-temperature and high-pressure conditions.
High temperature high voltage resistant sealing piston of the present invention, stopper rod combination and viscous crude high pressure property analyzer are made below in conjunction with the accompanying drawings
Further illustrate.
Brief description of the drawings
Fig. 1 is the structural representation of viscous crude high pressure property analyzer of the present invention；
Fig. 2 is the partial enlarged drawing at P in Fig. 1.
Embodiment
(1) high temperature high voltage resistant sealing piston
As shown in figure 1, a kind of high temperature high voltage resistant sealing piston of the present invention, including：Piston main body 2；In the appearance of piston main body 2
Face is provided with annular flange, and wherein annular flange is vertically arranged with piston main body axis, and annular flange is away from piston main body 2 or so
The distance at both ends is equal.
It is close to the left and right ends of piston main body 2 respectively centered on annular flange in the surface of the piston main body 2
It is symmetrically arranged with HTHP back-up ring 7 (8), HTHP sealing ring 6 (9), HTHP back-up ring 5 (10), guide support ring 4
And clamp nut 3 (12) (11).
4,11 pairs of piston main bodies 2 of guide support ring play a part of guide support, and it can prevent piston main body 2 being moved through
Occur directly to contact and rub with piston cylinder 1 in journey, play a part of protecting piston cylinder 1 not to be worn with piston main body 2.It is preceding standby
The standby nut 12 of nut 3/ plays a part of fixed HTHP back-up ring, guide support ring and HTHP sealing ring, avoids it
Come off from piston main body 2.HTHP back-up ring and HTHP sealing ring have stronger high-temperature-resistant high-pressure-resistant performance, its
In, HTHP back-up ring material is preferably polyimides, and HTHP sealing ring material is preferably perfluoroelastomers.
(2) stopper rod combines
As shown in figure 1, a kind of stopper rod combination of the present invention, in addition to including the high temperature high voltage resistant sealing piston, in addition to
Piston rod 14 and locating snap ring 13；Wherein：
The right side of piston main body 2 is provided with connecting screw hole, and the left end of piston rod 14 is provided with connection screw thread；Locating snap ring 13 with
Piston rod 14 is together in the screw of precession piston main body right side, and piston main body 2 forms screw thread with piston rod 14 and coordinated, locating snap ring
13 pairs of piston main bodies 2 and piston rod 14 are spacing locking.
(3) viscous crude high pressure property analyzer
As shown in figure 1, viscous crude high pressure property analyzer of the present invention, including：Sampler and analytical equipment；Wherein：Sampling
Device includes：Piston cylinder 1 and stopper rod combination, wherein being provided with entry/exit gas port 15 in the front end of piston cylinder and taking out/pouring orifice 17；
High temperature high voltage resistant sealing piston is arranged in piston cylinder 1, and is moved under the drive of piston rod 14 along piston cylinder axis direction；Its
In in order to realize the heat resisting and pressure resisting excellent performance of the present invention, HTHP back-up ring material is polyimides, HTHP sealing ring
Material is perfluoroelastomers.
Analytical equipment includes：Analyzer (not shown) and induction chip 16,18；Induction chip 16,18 is embedded at work
The inwall of plug tube 1, and induction chip 16,18 output ends are connected with the input of analyzer respectively, will collect data and be sent to
Analyzer.
Further, in order to keep the stability of piston main body and seal, in the convex annular that the surface of piston main body 2 is set
Distance of the edge away from piston main body left and right ends is equal.Preceding standby nut 3 screws the left end in piston main body 2, and a left side for preceding standby nut 3
End face flushes with the left side of piston main body 2；Standby nut 12 screws the right-hand member in piston main body 2, and the right side of standby nut 12
End face flushes with the right side of piston main body 2.Being so designed that is advantageous in that, avoids left and right ends and the work of piston main body 2
Gap is produced between plug tube 1.
Further, in order to prevent from loosening between piston main body 2 and piston rod 14, also set in the left side of piston rod 14
A locating snap ring 13 is equipped with, in screw of the locating snap ring 13 with the precession piston main body right side of piston rod 14.
The process analyzed using the present invention viscous crude physical property is as follows：
First turn on piston cylinder front end takes out/pouring orifice, pulls back piston rod, with being moved rearwards for piston, viscous crude
It is sucked into piston cylinder；
Be then shut off piston cylinder front end takes out/pouring orifice, promotes piston rod forward, living with the forward movement of piston rod
Viscous crude pressure in plug tube becomes larger, until when pressure reaches preset value, stops push piston rod；Therebetween, analytical equipment one
The directly pressure in measurement piston cylinder, and by visual result reaction on analyzer display screen；
Ultimate analysis device is analyzed the high pressure property of viscous crude.
The piston main body surface that the present invention includes is provided with annular flange, and in the left and right sides of flange difference in sequence
Closely it is provided with HTHP back-up ring, HTHP sealing ring, HTHP back-up ring, guide support ring and preceding standby nut；Work as work
When having pressure in plug tube inner chamber, the HTHP sealing ring on the left of annular flange can fill piston cylinder and height with pressure distortion
Slight gap between warm high pressure back-up ring, plays a part of sealing；Similarly, the HTHP sealing ring on the right side of annular flange plays
The effect of secondary seal.The present invention disclosure satisfy that carries out viscous crude PVT experiments under 300 DEG C, 100Mpa high-temperature and high-pressure conditions.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (9)
1. a kind of high temperature high voltage resistant sealing piston, including：Piston main body；It is characterized in that：
The piston main body surface is provided with annular flange, and the annular flange is vertical with the axis of the piston main body sets
Put；
In the surface of the piston main body, centered on annular flange, closely symmetrically set to the left and right ends of piston main body respectively
It is equipped with HTHP back-up ring, HTHP sealing ring, HTHP back-up ring, guide support ring and clamp nut；Two adjacent institutes
State HTHP back-up ring and clamp the HTHP sealing ring, the guide support ring set is located on the piston main body, described
Guide support ring is bonded the HTHP back-up ring close to one end of the annular flange, and the guide support ring is away from the ring
One end of shape flange connects the clamp nut.
A kind of 2. high temperature high voltage resistant sealing piston according to claim 1, it is characterised in that：The annular flange is away from piston
The distance of main body left and right ends is equal.
A kind of 3. high temperature high voltage resistant sealing piston according to claim 1, it is characterised in that：The HTHP back-up ring material
Matter is polyimides, and HTHP sealing ring material is perfluoroelastomers.
A kind of 4. stopper rod combination for employing high temperature high voltage resistant sealing piston described in claim 1, it is characterised in that：Also include living
Stopper rod；
The right side of the piston main body is provided with connecting screw hole, and the left end of the piston rod is provided with connection screw thread；The piston
Main body, by the cooperation of screw and screw thread, is screwed and is integrated with the piston rod.
5. stopper rod combination according to claim 4, it is characterised in that：Also include a locating snap ring, the locating snap ring is set
In the left side of the piston rod, and with described in piston rod precession in the screw of piston main body right side.
6. a kind of viscous crude high pressure property analyzer for employing stopper rod described in claim 4 and combining, including：Sampler and analysis
Device；Wherein：
The sampler includes：Piston cylinder and the stopper rod combination, wherein be provided with the front end of piston cylinder take out/pouring orifice and
Entry/exit gas port；The high temperature high voltage resistant sealing piston is arranged in the piston cylinder, and along piston cylinder under the drive of piston rod
Axis direction moves；
The analytical equipment includes：Analyzer and induction chip；The induction chip is embedded at the piston cylinder inwall, and its is defeated
Go out end with the input of the analyzer to be connected.
7. viscous crude high pressure property analyzer according to claim 6, it is characterised in that：Also include a locating snap ring, it is described
Locating snap ring is arranged at the left side of the piston rod, and with described in piston rod precession in the screw of piston main body right side.
8. the viscous crude high pressure property analyzer according to claim 6, it is characterised in that：The annular flange is away from piston main body
The distance of left and right ends is equal.
9. the viscous crude high pressure property analyzer according to claim 6, it is characterised in that：The HTHP back-up ring material is
Polyimides, HTHP sealing ring material are 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 |
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| Publication Number | Publication Date |
|---|---|
| CN105158446A CN105158446A (en) | 2015-12-16 |
| CN105158446B true CN105158446B (en) | 2017-12-12 |
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| CN201510685157.7A Active 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 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594285B (en) * | 2017-02-22 | 2017-12-08 | 扬州华宝石油仪器有限公司 | Digital hydraulic adjusts sealing structure |
| CN107017515B (en) * | 2017-03-31 | 2021-01-29 | 中航光电科技股份有限公司 | Sealing structure and rotary connector adopting same |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102094593B (en) * | 2011-01-26 | 2013-10-02 | 才永存 | Sealing device and mechanical sealing packer |
| CN202417491U (en) * | 2011-12-30 | 2012-09-05 | 北京捷威思特科技有限公司 | Pressure-volume-temperature (PVT) sample barrel and sample transferring tool |
| CN202883334U (en) * | 2012-05-14 | 2013-04-17 | 崔迺林 | Fluid power drive oil well pump |
| CN103452554B (en) * | 2012-06-03 | 2017-04-26 | 新疆科力新技术发展股份有限公司 | Flash evaporation prevention sealed sampling and metering device for high-temperature high-pressure saturated liquid |
| CN103161458B (en) * | 2013-02-28 | 2016-03-23 | 中国海洋石油总公司 | The experimental facilities of simulation heavy crude reservoir gas auxiliary steam oil recovery by heating and special purpose model system thereof |
| CN204200218U (en) * | 2014-09-15 | 2015-03-11 | 中法渤海地质服务有限公司 | A kind of direct-reading manometer for downhole fluid high pressure physical property sample |
| CN205038211U (en) * | 2015-10-20 | 2016-02-17 | 北京瑞莱博石油技术有限公司 | High temperature and high pressure seals piston, cock stem combination and viscous crude high pressure rerum natura analysis appearance |
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