CN204458326U - A kind of graded ceramic plunger - Google Patents
A kind of graded ceramic plunger Download PDFInfo
- Publication number
- CN204458326U CN204458326U CN201420872739.7U CN201420872739U CN204458326U CN 204458326 U CN204458326 U CN 204458326U CN 201420872739 U CN201420872739 U CN 201420872739U CN 204458326 U CN204458326 U CN 204458326U
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- Prior art keywords
- plunger
- ceramic
- ceramic plunger
- graded
- inner pipe
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- 239000000919 ceramic Substances 0.000 title claims abstract description 83
- 239000002184 metal Substances 0.000 claims abstract description 23
- 230000011218 segmentation Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 8
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010795 Steam Flooding Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
A kind of graded ceramic plunger, comprise plunger upper connection, metal inner pipe, ceramic plunger, the first plunger lower contact, described plunger upper connection is connected with metal inner pipe, described metal inner pipe is sheathed plunger bushing and ceramic plunger successively, described ceramic plunger segmentation, be provided with end washer therebetween, described end washer 8 is bell mouth shape and central axis angle is 35-45 degree.The utility model is when normally working, and graded ceramic plunger and metal washer there will not be inconsistent phenomenon, and ceramic plunger operates steadily in pump barrel, without holddown problem; Ceramic plunger and pump barrel effective sealing section can reach 900mm, fully meet clearance seal demand; Compared with metal plunger, ceramic plunger at high temperature swell increment is almost nil, can guarantee that ceramic plunger and pump barrel matching gap are stable, accurately.
Description
Technical field
The utility model relates to field of petroleum exploitation, is mainly used in the lifting of the hot extracting thick oil such as steam flooding, SAGD oil well, particularly a kind of graded ceramic plunger in petroleum production.
Background technique
In recent years, along with oil field development enters the middle and later periods, the heavy oil development technology such as lifting such as steam flooding, SAGD, horizontal well are in Liaohe Oil Field extensive use, and the Lifting Technique difficult problems such as bottom hole temperature (BHT) is high, lifting rate demand large, corrosivity enhancing become increasingly conspicuous, for SAGD, day production fluid demand 300m
3/ d, bottom hole temperature (BHT) up to 240 DEG C, part well H
2s content reaches more than 1400ppm, the lifting technology equipment of current employing can meet production requirement substantially, but along with bottom hole temperature (BHT) constantly raises, Korrosionsmedium is separated out in a large number, chemical corrosion phenomenon is aggravated, and the comprehensive function of these unfavorable factors is very large on the impact of lifting equipment, the particularly progressively enforcement of multimedium combination S AGD exploitation technology, also more serious high temperature, corrosion phenomenon be may there is while improving output, lifting equipment stability and working life had a strong impact on.
In current rod pump Lifting Technique, oil pump plunger piston substantially adopts metal material in selection, in recent years, develop both at home and abroad ceramicpump lifting technology technology in, its important composition parts plunger adopts ceramic composite structures, but due to metalwork and the ceramic difference that there is linear expansion coeffcient, and ceramic plunger and metallic matrix are unreasonable in structural design, there is the phenomenon such as ceramic plunger and hardware misplaces, ceramic plunger fracture, directly cause the problem such as holddown, wastage increase.Have a strong impact on produced on-site.Therefore, be necessary to develop Novel oil well pump ceramic plunger, the structure of reasonably optimizing plunger and stupalith, to meet the lifting demand of steam drive development middle and later periods, SAGD etc., for the hot extracting thick oil such as steam flooding, SAGD provides reliable technical support.
Model utility content
The utility model solves the design of ceramic oil-pump ceramic plunger, a research and development technology difficult problem, the full ceramic oil-pump Lifting Technique of final formation, the hot extracting thick oil such as steam flooding, SAGD oil well Lifting Technique demand can be met, for the heavy oil developments such as SAGD provide reliable technical support, for formed a set of efficient, high yield oil production technology offer help.For this reason, a kind of graded ceramic plunger is designed.
A kind of graded ceramic plunger, comprise plunger upper connection, metal inner pipe, ceramic plunger, the first plunger lower contact, wherein, described plunger upper connection is connected with metal inner pipe, described metal inner pipe is sheathed plunger bushing and ceramic plunger successively, described ceramic plunger segmentation, is provided with end washer therebetween, and described end washer is bell mouth shape and central axis angle is 35-45 degree.
Further, the total segment length 800mm-1000mm of described ceramic plunger, preferred 900mm.
Further, described ceramic plunger at least one section, preferably 5 sections, every segment length 170mm-190mm, preferred 180mm.
Further, described end washer material is 1Cr18Ni9Ti.
Further, described end washer is bell mouth shape and central axis angle preferably 40 degree.
Further, described ceramic plunger thickness is 7mm-9mm, preferred 8mm.
Further, described plunger upper connection one end connects upper travelling valve ball, upper delivery connection successively, and the sheathed setscrew nut of its cylindrical of the other end and butterfly spring, described butterfly spring is connected with described plunger bushing.
Further, described disk spring material is 60Si
2mn, adopts totally 8 groups of superpositions.
Further, pipe and ceramic plunger in described first plunger lower contact one end connection metal, the other end connects travelling valve bonnet, lower travelling valve ball and the second plunger lower contact successively.
The utility model beneficial effect:
(1), when normally working, graded ceramic plunger and metal washer there will not be inconsistent phenomenon, and ceramic plunger is at pump
Operate steadily, without holddown problem in cylinder.
(2) ceramic plunger and pump barrel effective sealing section can reach 900mm, fully meet clearance seal demand.
(3) compared with metal plunger, ceramic plunger at high temperature swell increment is almost nil, can guarantee that ceramic plunger and pump barrel matching gap are stable, accurately.
Accompanying drawing explanation
Fig. 1 is graded ceramic piston structure figure;
Fig. 2 is graded ceramic plunger A portion partial enlarged drawing;
Wherein, 1--upper delivery connection 2-upper travelling valve ball 3-plunger upper connection 4-setscrew nut 5-butterfly spring 6-plunger bushing 7-ceramic plunger 8-end washer 9-metal inner pipe 10-plunger lower contact 11-travelling valve bonnet 12-lower travelling valve ball 13-the second plunger lower contact.
Embodiment
Shown in Fig. 1, Fig. 2, a kind of graded ceramic plunger, comprise plunger upper connection 3, metal inner pipe 9, ceramic plunger 7, first plunger lower contact 10, wherein, described plunger upper connection 3 is connected with metal inner pipe 9, and described metal inner pipe 9 is sheathed plunger bushing 6 and ceramic plunger 7 successively, the segmentation of described ceramic plunger 7, be provided with end washer 8 therebetween, described end washer 8 is bell mouth shape and central axis angle is 35-45 degree.
Described ceramic plunger 7 total segment length 800mm-1000mm, preferred 900mm.At least one section of described ceramic plunger 7, preferably 5 sections, every segment length 170mm-190mm, preferred 180mm.Described end washer 8 material is 1Cr18Ni9Ti.Described end washer 8 is in bell mouth shape and central axis angle preferably 40 degree.Described ceramic plunger 7 thickness is 7mm-9mm, preferred 8mm.Described plunger upper connection 3 one end connects upper travelling valve ball 2, upper delivery connection 1 successively, and the sheathed setscrew nut 4 of its cylindrical of the other end and butterfly spring 5, described butterfly spring 5 is connected with described plunger bushing 6.Described butterfly spring 5 material is 60Si
2mn, adopts totally 8 groups of superpositions.Pipe 9 and ceramic plunger 7 in described first plunger lower contact 10 one end connection metal, the other end connects travelling valve bonnet 11, lower travelling valve ball 12 and the second plunger lower contact 13 successively.
The utility model is when assembling, ceramic plunger 7, end washer 8 are by metal inner pipe 9 axially locating, incremental extrusion is separated by end washer between the ceramic plunger of two ends, top butterfly spring 5 completes the axial restraint of a whole set of ceramic plunger 7 by plunger bushing 6, butterfly spring 5 is fixed by setscrew nut 4, thus completes a whole set of assembling.Above-mentioned parts are except ceramic plunger adopts silicon nitride composite ceramics, and all the other component all adopt metal material.
The following technology contents of the utility model collection forms the graded ceramic plunger of high-quality,
(1) ceramic plunger adopts segmentation processing technique, and for ensureing the effective sealing of pump barrel and plunger, design plunger seal segment length is 900mm, can meet the clearance seal demand between pump barrel and plunger.
(2) the every segment length of graded ceramic plunger is 180mm, and 5 sections of ceramic plungers are by metal inner pipe axially locating, and unified assembling, guarantees assembly precision under a certain pressure.
(3) adopt stainless steel end washer (1Cr18Ni9Ti) auxiliary positioning between graded ceramic plunger, avoid ceramic plunger section to contact, effectively can prevent from mutually extruding between ceramic plunger, make plunger section breakage problem.
(4) ceramic plunger assembly two ends design spring steel butterfly spring (60Si
2mn), by theoretical calculation analysis, adopt totally 8 groups of superpositions, effectively can discharge stress, during work, elasticity booster action can be played.
(5) plunger end face design oblique angle, end face seal effect during for guaranteeing that plunger piston assembly assembles, by theory calculate, design vertical angle 40 °, plunger end face coordinates with stainless steel end washer highi degree of accuracy simultaneously.Prevent plunger and packing ring from misplacing, improving sealing effect.
(6) according to silicon nitride ceramic material performance evaluation, ceramic plunger design thickness is 8mm, while guaranteeing ceramic plunger intensity, compared with metal plunger, can increase liquid area of passage in plunger.
Claims (12)
1. a graded ceramic plunger, comprises plunger upper connection (3), metal inner pipe (9), ceramic plunger (7), the first plunger lower contact (10),
It is characterized in that, described plunger upper connection (3) is connected with metal inner pipe (9), described metal inner pipe (9) is sheathed plunger bushing (6) and ceramic plunger (7) successively, described ceramic plunger (7) segmentation, be provided with end washer (8) therebetween, described end washer (8) in bell mouth shape and central axis angle be 35-45 degree.
2. graded ceramic plunger according to claim 1, is characterized in that, the total segment length of described ceramic plunger (7) is 800mm-1000mm.
3. graded ceramic plunger according to claim 2, is characterized in that, the total segment length of described ceramic plunger (7) is 900mm.
4. graded ceramic plunger according to claim 2, is characterized in that, described ceramic plunger (7) at least one section, and every segment length is 170mm-190mm.
5. graded ceramic plunger according to claim 4, is characterized in that, described ceramic plunger (7) is 5 sections, and every segment length is 180mm.
6. the graded ceramic plunger according to claim 1 or 4 or 5, is characterized in that, described end washer (8) material is 1Cr18Ni9Ti.
7. the graded ceramic plunger according to claim 1 or 4 or 5, is characterized in that, described end washer (8) is in bell mouth shape and central axis angle 40 degree.
8. the graded ceramic plunger according to claim 1 or 4 or 5, is characterized in that, described ceramic plunger (7) thickness is 7mm-9mm.
9. graded ceramic plunger according to claim 8, is characterized in that, described ceramic plunger (7) thickness is 8mm.
10. graded ceramic plunger according to claim 1, it is characterized in that, described plunger upper connection (3) one end connects upper travelling valve ball (2), upper delivery connection (1) successively, the sheathed setscrew nut of its cylindrical of the other end (4) and butterfly spring (5), described butterfly spring (5) is connected with described plunger bushing (6).
11. graded ceramic plungers according to claim 10, is characterized in that, described butterfly spring (5) material is 60Si
2mn, adopts totally 8 groups of superpositions.
12. graded ceramic plungers according to claim 1, it is characterized in that, pipe (9) and ceramic plunger (7) in described first plunger lower contact (10) one end connection metal, the other end connects travelling valve bonnet (11), lower travelling valve ball (12) and the second plunger lower contact (13) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872739.7U CN204458326U (en) | 2014-12-31 | 2014-12-31 | A kind of graded ceramic plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872739.7U CN204458326U (en) | 2014-12-31 | 2014-12-31 | A kind of graded ceramic plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458326U true CN204458326U (en) | 2015-07-08 |
Family
ID=53665225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420872739.7U Expired - Fee Related CN204458326U (en) | 2014-12-31 | 2014-12-31 | A kind of graded ceramic plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458326U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499613A (en) * | 2016-11-30 | 2017-03-15 | 中国石油天然气股份有限公司 | Oil well pump |
| CN106593833A (en) * | 2016-12-08 | 2017-04-26 | 中国石油天然气股份有限公司 | Oil control device |
| CN111823371A (en) * | 2020-07-13 | 2020-10-27 | 广东艾康环保科技有限公司 | High temperature resistant ceramic plunger machine |
-
2014
- 2014-12-31 CN CN201420872739.7U patent/CN204458326U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499613A (en) * | 2016-11-30 | 2017-03-15 | 中国石油天然气股份有限公司 | Oil well pump |
| CN106593833A (en) * | 2016-12-08 | 2017-04-26 | 中国石油天然气股份有限公司 | Oil control device |
| CN106593833B (en) * | 2016-12-08 | 2018-04-06 | 中国石油天然气股份有限公司 | A kind of oil rig |
| CN111823371A (en) * | 2020-07-13 | 2020-10-27 | 广东艾康环保科技有限公司 | High temperature resistant ceramic plunger machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 |