CN205714693U - Traveling valve tandem type long plunger gap bridge oil well pump - Google Patents
Traveling valve tandem type long plunger gap bridge oil well pump Download PDFInfo
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- CN205714693U CN205714693U CN201620282985.6U CN201620282985U CN205714693U CN 205714693 U CN205714693 U CN 205714693U CN 201620282985 U CN201620282985 U CN 201620282985U CN 205714693 U CN205714693 U CN 205714693U
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- 239000003129 oil well Substances 0.000 title claims abstract description 33
- 239000003921 oil Substances 0.000 abstract description 10
- 239000010779 crude oil Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 14
- 230000003628 erosive effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model relates to a petroleum industry mechanical oil recovery field, concretely relates to traveling valve serial-type long plunger gap bridge oil-well pump, including the outer tube of passing a bridge, an upper joint and a lower clutch are connected respectively to the outer tube of passing a bridge both ends, there are short pump barrel and lower pump line at the outer tube of passing a bridge endotheca, short pump barrel upper end is unsettled, short pump barrel lower extreme and lower pump line threaded connection, lower pump line lower extreme and lower clutch threaded connection, short pump barrel and lower pump line endotheca have the long plunger, long plunger and short pump barrel sliding fit, the length of long plunger is greater than the length of short pump barrel, the upper end of long plunger is connected with the valve bonnet that moves about, the external diameter size of the valve bonnet that moves about on is greater than short pump barrel internal diameter size, the lower extreme of long plunger has connected gradually two sets of low traveling valve bonnet series connection's two traveling valve series structures that. The utility model discloses can realize the promotion of crude oil in the pit, solve scale deposit in the pump barrel and go up the cracked problem of traveling valve, improve its suitability, the oil well is hung to the needs loading tail under specially adapted deep well or the pump.
Description
Technical field
The utility model relates to petroleum industry mechanical oil recovery field, particularly to a kind of travelling valve tandem long-plunger gap bridge oil well pump.
Background technology
At present, at low permeability oil field, large area exploitation with ultra-low penetration oil field, use the low pump efficiency of huge discharge oil well pump, high energy consumption, the short principal contradiction having become benefit mechanical oil recovery in service life; the popularization of small pump diameter integeral tube pumping pump, the particularly popularization of internal diameter 28mm integeral tube pumping pump to a certain degree solve low pump efficiency, high energy consumption problem.But small pump diameter integeral tube pumping pump only has a pump barrel, and pump barrel maximum outside diameter is little, its strength and stiffness difference, in transport and often there is pump barrel flexural deformation in using, cause plunger jam, fault rate remains high, and has had influence on and has promoted the use of.
The integeral tube pumping pump of the reinforced pump barrel of Chinese patent: ZL201020579945.0, main by pump joint, outer pillar, pump barrel, assembly for plunger, righting circle and inlet valve composition, there is internal thread at the two ends of pump joint, pillar two ends connect a pump joint respectively outside, it is cased with pump barrel outside in pillar, the inner face of pump barrel and two pump joints compresses and seals, there is annular space between pump barrel and outer pillar, there is righting circle in annular space between pump barrel and outer pillar, the structure of righting circle is to have an annular disconnecting mouth, righting circle is respectively fitted over two ends and the pump barrel pars intermedia position of pump barrel, righting circle relies on self radial contracting forces, it is clamped on pump barrel, centralizing function is played to pump barrel.Assembly for plunger is in pump barrel, and assembly for plunger is slidably matched with pump barrel, and inlet valve is connected on the pump joint internal thread of outer pillar lower end.
Pump joint is threadeded with outer pillar, the supporter of composition oil well pump, plays a protective role the pump barrel of its inside, it is to avoid external force acts on pump barrel；Outer pillar selects the tubing material of high intensity, can improve the strength and stiffness of the pump housing.
The integeral tube pumping pump of this reinforced pump barrel described in the utility model, solve small pump diameter integeral tube pumping pump because of pump barrel pump footpath little, its intensity and poor rigidity, transport and use in the flexible deformation of pump barrel, the problem causing plunger jam, improves the dependability of small pump diameter integeral tube pumping pump.But, the integeral tube pumping pump of this reinforced pump barrel structurally there are pump barrel at axis direction by the problem of pump joint extruding force, can cause pump barrel crimp, and pump barrel and outer tube bending can occur when serious, and impact is normal to be used.
Therefore, Chinese patent: 201520547927.2 provide a kind of integeral tube pumping pump, including outer tube, the two ends of outer tube connect a top connection and a lower contact respectively, being cased with pump barrel in outer tube, pump barrel upper end is connected with the pump barrel internal thread of top connection, and the lower end of pump barrel is suspended at the righting of lower contact, it is provided with the assembly for plunger sliding up and down along pump barrel in pump barrel, lower contact is connected with inlet valve.
The utility model outer tube is connected with the oil pipe internal thread of top connection and lower contact, the supporter of composition oil well pump, plays a protective role the pump barrel of its inside；Pump barrel only upper end is connected with the pump barrel internal thread of the top connection of outer sleeve upper, lower end is suspended at the righting of lower contact, avoid pump barrel and bear, at axis direction, the problem that pressure solves the integeral tube pumping pump pump barrel compressive deformation of reinforced pump barrel simultaneously, improve its applicability.
Top connection one end described in the utility model is oil pipe internal thread, the other end is oil pipe internal thread and the combining structure of pump barrel internal thread, same one end of top connection connects outer sleeve and pump barrel, use the combining structure of oil pipe internal thread and pump barrel internal thread, the connection avoiding outer sleeve and pump barrel is uneven, it is to avoid pump barrel bears pressure at axis direction.
It is little that this integeral tube pumping pump described in the utility model solves small pump diameter integeral tube pumping pump pump footpath, pump barrel intensity and rigidly low problem, meets the use needing to load tail extension oil well under deep-well or pump and requires.But this integeral tube pumping pump uses long pump barrel and short-plunger structure, in use there is also the easy fouling in position that pump barrel inner plunger cannot arrive at, in causing holddown and upward-traveling valves pump barrel to be entered into, outside dimension is limited, and intensity is low, the problem being easily broken off.
Content of the invention
The purpose of this utility model is the problem solving fouling and upward-traveling valves fracture in pump barrel, to this end, the utility model provides a kind of travelling valve tandem long-plunger gap bridge oil well pump, is capable of the lifting of downhole crude, and the property promoted the use of is greatly improved.
The technical solution adopted in the utility model is: a kind of travelling valve tandem long-plunger gap bridge oil well pump,
Including gap bridge outer tube, the two ends of gap bridge outer tube connect a top connection and a lower contact respectively, it is cased with short pump barrel and lower pump line in gap bridge outer tube, short pump barrel upper end is unsettled, threadeds with lower pump line in short pump barrel lower end, threadeds with lower contact in lower pump line lower end, it is cased with long-plunger in short pump barrel and lower pump line, long-plunger is slidably matched with short pump barrel, and the lower end of long-plunger is connected with double travelling valve cascaded structure and lower travelling valve seated connection head in turn, and lower contact is connected with inlet valve.
Described double travelling valve cascaded structures are in series by two set lower travelling valve covers.
The inside of two described set lower travelling valve covers is respectively provided with a travelling valve ball and a travelling valve seat.
The upper end of described long-plunger is connected with upper traveling valve cage.
The length of described long-plunger is more than the length of short pump barrel.
The outside dimension of described upper traveling valve cage is more than short pump barrel internal diameter size.
Described inlet valve is connected on the internal thread of lower contact.
Compared with prior art, the utility model has the advantages that
1) the utility model provides a kind of travelling valve tandem long-plunger gap bridge oil well pump, it is capable of the lifting of downhole crude, improve intensity and the rigidity of pump barrel, the work pump barrel of this travelling valve tandem long-plunger gap bridge oil well pump described in the utility model is made up of short pump barrel and lower pump line, and only descend the internal thread of the lower contact with gap bridge outer tube lower end for the pump line lower end to be connected, upper end is unsettled, avoid travelling valve tandem long-plunger gap bridge oil well pump work pump barrel and bear pressure at axis direction, the problem solving work pump barrel compressive deformation, improves its applicability.
2) the utility model provides a kind of travelling valve tandem long-plunger gap bridge oil well pump, the length of long-plunger is more than the length of short pump barrel, i.e. long-plunger pump supreme, bottom dead centre when, short pump barrel is all stretched out in the upper end of long-plunger or lower end, thus ensures that whole stroke procedure incrustation ion is not easy to deposit at pump barrel and long-plunger surface to form dirt layer.
3) the utility model provides a kind of travelling valve tandem long-plunger gap bridge oil well pump, do not place travelling valve ball in described upper traveling valve cage, it is to avoid the fracture that the erosive wear to upper traveling valve cage inwall for the travelling valve ball causes.
4) a kind of travelling valve tandem long-plunger gap bridge oil well pump of the utility model, the outside dimension of described upper traveling valve cage is more than the internal diameter size of short pump barrel, do not enter in short pump barrel during upper traveling valve cage work, can take to increase the modes such as wall thickness, improve upper traveling valve cage intensity, the problem solving upward-traveling valves fracture.
Brief description
Fig. 1 is a kind of travelling valve tandem long-plunger gap bridge oil well pump structural representation of the utility model example.
Description of reference numerals:
1st, upper traveling valve cage, the 2nd, top connection, the 3rd, long-plunger, the 4th, gap bridge outer tube, the 5th, short pump barrel, the 6th, lower pump barrel, the 7th, lower travelling valve cover, the 8th, move about valve ball, and 9 move about valve seat, the 10th, lower travelling valve seated connection head, the 11st, lower contact, the 12nd, inlet valve.
Detailed description of the invention
Embodiment 1:
For the easy fouling in position overcoming existing pump barrel inner plunger to arrive at, in causing holddown and upward-traveling valves pump barrel to be entered into, outside dimension is limited, intensity is low, the problem being easily broken off, and the utility model provides a kind of travelling valve tandem long-plunger gap bridge oil well pump, it is capable of the lifting of downhole crude, the problem solving fouling and upward-traveling valves fracture in pump barrel, improves its applicability, and meeting needs to load tail and hang the use of oil well and require under deep-well or pump.
As shown in Figure 1, the technical solution adopted in the utility model is: a kind of travelling valve tandem long-plunger gap bridge oil well pump, it is characterized in that: include gap bridge outer tube 4, the two ends of gap bridge outer tube 4 connect a top connection 2 and a lower contact 11 respectively, it is cased with short pump barrel 5 and lower pump line 6 in gap bridge outer tube 4, short pump barrel 5 upper end is unsettled, threaded with lower pump line 6 in short pump barrel 5 lower end, threaded with lower contact 11 in lower pump line 6 lower end, it is cased with long-plunger 3 in short pump barrel 5 and lower pump line 6, long-plunger 3 is slidably matched with short pump barrel 5, the lower end of long-plunger 3 is connected with double travelling valve cascaded structure and lower travelling valve seated connection head 10 in turn, it is connected with inlet valve 12 in lower contact 11, inlet valve 12 is connected on the internal thread of lower contact 11.
In the present embodiment, the upper end of long-plunger 3 is connected with upper traveling valve cage 1, the lower end of long-plunger 3 is connected with double travelling valve cascaded structure and lower travelling valve seated connection head 10 in turn, described double travelling valve cascaded structures are in series by two set lower travelling valve covers 7, the inside of two set lower travelling valve covers 7 is respectively provided with a travelling valve ball 8 and a travelling valve seat 9, the tandem of travelling valve avoids the erosive wear of the valve to upstream for the upper valve ball, upward-traveling valves is overhead, travelling valve ball is not placed in described upper traveling valve cage, avoid the fracture that the erosive wear to upper traveling valve cage inwall for the travelling valve ball causes.
This novel course of work is: during up stroke, long-plunger 3 is up, the lower travelling valve ball 8 that long-plunger 3 lower end connects is closed under gravity, crude oil in short pump barrel 5 pump chamber is promoted to ground, meanwhile, the lower pump barrel 6 pump chamber volume of long-plunger 3 lower end increases, and pressure reduces, inlet valve 12 is opened under pump inside and outside differential pressure effect, and in well, crude oil enters into lower pump barrel 6 pump chamber by inlet valve 12.
Down stroke, long-plunger 3 is descending, and inlet valve 12 cuts out under Gravitative Loads, lower pump barrel 6 pump chamber volume-diminished, and pressure raises, and the travelling valve ball 8 on long-plunger is opened, and the crude oil in lower pump barrel 6 pump housing flows into short pump barrel 5 pump chamber through long-plunger 3 centre bore.
And so forth, it is achieved that downhole crude is constantly promoted to ground, completes whole oil pumping process.
Embodiment 2:
On the basis of embodiment 1, the length of described long-plunger 3 is more than the length of short pump barrel 5, i.e. long-plunger 3 pump supreme, bottom dead centre when, short pump barrel 5 is all stretched out in the upper end of long-plunger 3 or lower end, thus ensureing that whole stroke procedure middle long column plug 3 has relative motion all the time with the full section of short pump barrel 5 so that incrustation ion is not easy to deposit at pump barrel and plunger surface to form dirt layer.
Embodiment 3:
On the basis of embodiment 1, described gap bridge outer tube 4 is connected with the internal thread of top connection 2 and lower contact 11, the supporter of composition long-plunger gap bridge oil well pump, the short pump barrel 5 and lower pump line 6 of its inside is played a protective role, described short pump barrel 5 and lower pump line 6 form the work pump barrel of long-plunger gap bridge oil well pump, the internal thread of the lower contact 11 with gap bridge outer tube 7 lower end for lower pump line 6 lower end of the work pump barrel only lower end of described long-plunger gap bridge oil well pump is connected, upper end is unsettled, avoid travelling valve tandem long-plunger gap bridge oil well pump work pump barrel and bear pressure at axis direction, the problem solving the work pump barrel compressive deformation of travelling valve tandem long-plunger gap bridge oil well pump, improve its applicability.
Embodiment 4:
On the basis of embodiment 1, the outside dimension of upper traveling valve cage 1 described in the utility model is more than short pump barrel 5 internal diameter size, does not enter in short pump barrel during upper traveling valve cage work, can take to increase the modes such as wall thickness, improve upper traveling valve cage intensity, the problem solving upward-traveling valves fracture.
Inlet valve 12 is existing product, does not describes in detail.
Claims (7)
1. a travelling valve tandem long-plunger gap bridge oil well pump, it is characterized in that: include gap bridge outer tube (4), the two ends of gap bridge outer tube (4) connect a top connection (2) and a lower contact (11) respectively, it is cased with short pump barrel (5) and lower pump line (6) in gap bridge outer tube (4), short pump barrel (5) upper end is unsettled, threaded with lower pump line (6) in short pump barrel (5) lower end, threaded with lower contact (11) in lower pump line (6) lower end, it is cased with long-plunger (3) in short pump barrel (5) and lower pump line (6), long-plunger (3) is slidably matched with short pump barrel (5), the lower end of long-plunger (3) is connected with double travelling valve cascaded structure and lower travelling valve seated connection head (10) in turn, it is connected with inlet valve (12) in lower contact (11).
2. a kind of travelling valve tandem long-plunger gap bridge oil well pump according to claim 1, it is characterised in that: described double travelling valve cascaded structures are in series by two sets lower travelling valve cover (7).
3. a kind of travelling valve tandem long-plunger gap bridge oil well pump according to claim 2, it is characterised in that: the inside of two described sets lower travelling valve cover (7) is respectively provided with a travelling valve ball (8) and a travelling valve seat (9).
4. a kind of travelling valve tandem long-plunger gap bridge oil well pump according to claim 1, it is characterised in that: the upper end of described long-plunger (3) is connected with upper traveling valve cage (1).
5. a kind of travelling valve tandem long-plunger gap bridge oil well pump according to claim 1, it is characterised in that: the length of described long-plunger (3) is more than the length of short pump barrel (5).
6. a kind of travelling valve tandem long-plunger gap bridge oil well pump according to claim 4, it is characterised in that: the outside dimension of described upper traveling valve cage (1) is more than short pump barrel (5) internal diameter size.
7. a kind of travelling valve tandem long-plunger gap bridge oil well pump according to claim 1, it is characterised in that: described inlet valve (12) is connected on the internal thread of lower contact (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620282985.6U CN205714693U (en) | 2016-04-07 | 2016-04-07 | Traveling valve tandem type long plunger gap bridge oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620282985.6U CN205714693U (en) | 2016-04-07 | 2016-04-07 | Traveling valve tandem type long plunger gap bridge oil well pump |
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| Publication Number | Publication Date |
|---|---|
| CN205714693U true CN205714693U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620282985.6U Active CN205714693U (en) | 2016-04-07 | 2016-04-07 | Traveling valve tandem type long plunger gap bridge oil well pump |
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| CN (1) | CN205714693U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320859A (en) * | 2022-01-18 | 2022-04-12 | 东北石油大学 | Flexible oil-well pump of valves tracking motion type horizontal well |
| CN114687707A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Quick flowing back tubular column of machine pump anti-sticking |
-
2016
- 2016-04-07 CN CN201620282985.6U patent/CN205714693U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687707A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Quick flowing back tubular column of machine pump anti-sticking |
| CN114320859A (en) * | 2022-01-18 | 2022-04-12 | 东北石油大学 | Flexible oil-well pump of valves tracking motion type horizontal well |
| CN114320859B (en) * | 2022-01-18 | 2023-09-01 | 东北石油大学 | Valve group tracking movement type flexible oil pump for horizontal well |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |