CN205638872U - Oil -well pump of passing a bridge is filled in to long column - Google Patents
Oil -well pump of passing a bridge is filled in to long column Download PDFInfo
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- CN205638872U CN205638872U CN201620282987.5U CN201620282987U CN205638872U CN 205638872 U CN205638872 U CN 205638872U CN 201620282987 U CN201620282987 U CN 201620282987U CN 205638872 U CN205638872 U CN 205638872U
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Abstract
The utility model relates to an oil industry mechanical oil extraction field, concretely relates to oil -well pump of passing a bridge is filled in to long column, including passing a bridge the outer tube, pass a bridge the both ends of outer tube and connect a top connection and a lower clutch respectively, at the outer tube endotheca pubescent pump barrel pump line under with of passing a bridge, short pump barrel upper end is unsettled, short pump barrel lower extreme and lower pump pipe thread connection, the pump line lower extreme is connected with lower connector thread down, short pump barrel has the long column stopper with lower pump line endotheca, long column stopper and short pump barrel sliding fit, the length of long column stopper is greater than the length of short pump barrel, the upper and lower both ends correspondence of long column stopper is connected with the valve bonnet that moves about from top to bottom, the outer diameter of valve bonnet of moving about is greater than short pump barrel internal diameter size, be connected with the filling valve on the lower clutch, the utility model discloses can realize the promotion of crude oil in the pit, solve interior scale deposit of pump barrel and the cracked problem of last traveling valve, improve its suitability, specially adapted deep well or pump need the load tail to hang the oil well down.
Description
Technical field
This utility model relates to petroleum industry mechanical oil recovery field, particularly to a kind of long-plunger gap bridge oil well pump.
Background technology
At present, at low permeability oil field, along with the large area in ultra-low penetration oil field is developed, stripper well " sky is taken out " phenomenon generally exists, and uses 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, and its strength and stiffness are poor, pump barrel flexural deformation often occurring in transport and use, causes 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 female 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, annular space is had between pump barrel and outer pillar, righting circle is had 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, pump barrel is played centralizing function.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 female 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 Acting is 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 trocar sheath bending can occur time serious, and impact is normal to be used.
Therefore, Chinese patent: 201520547927.2 provide a kind of integeral tube pumping pump, including trocar sheath, the two ends of trocar sheath connect a top connection and a lower contact respectively, being cased with pump barrel in trocar sheath, pump barrel upper end is connected with the pump barrel female thread of top connection, and the lower end of pump barrel is suspended at the righting of lower contact, being provided with the assembly for plunger slided up and down along pump barrel in pump barrel, lower contact connects inlet valve.
This utility model trocar sheath is connected with the oil pipe female 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 female 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 suitability.
Top connection one end described in the utility model is oil pipe female thread, the other end is oil pipe female thread and the combinative structure of pump barrel female thread, same one end of top connection connects outer sleeve and pump barrel, use oil pipe female thread and the combinative structure of pump barrel female 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 the low problem of rigidity, and meeting needs to load tail and hang the use requirement of oil well under deep-well or pump.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.
Summary of the invention
The purpose of this utility model is to solve fouling and the problem of upward-traveling valves fracture in pump barrel, to this end, this utility model provides a kind of long-plunger gap bridge oil well pump, it is possible to realize 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 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, short pump barrel and lower pump line it is cased with in gap bridge outer tube, short pump barrel upper end is unsettled, threaded with lower pump line in short pump barrel lower end, threaded 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, the lower end of long-plunger is connected with lower travelling valve cover and lower travelling valve seated connection head in turn, and lower contact connects inlet valve.
The upper end of described long-plunger is connected with upward-traveling valves seated connection head and upper traveling valve cage in turn.
The inside of described upper traveling valve cage and lower travelling valve cover is respectively provided with a travelling valve ball and a travelling valve seat.
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 female thread of lower contact.
Described short pump barrel and the work pump barrel of lower pump line composition oil well pump, the lower pump line lower end of described oil well pump work pump barrel only lower end is connected with the female thread of the lower contact of gap bridge outer tube lower end, and upper end is unsettled.
Compared with prior art, this utility model has the advantages that
1) this utility model provides a kind of 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 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 pump line lower end to be connected with the female thread of the lower contact of gap bridge outer tube lower end, upper end is unsettled, avoid 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 suitability.
2) this utility model provides a kind of 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 time, 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 at pump barrel and long-plunger surface formation of deposits dirt layer.
3) this utility model one long-plunger gap bridge oil well pump, the outside dimension of described upper traveling valve cage, more than the internal diameter size of short pump barrel, 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.
Accompanying drawing explanation
Fig. 1 is this utility model example one long-plunger gap bridge oil well pump structural representation.
Description of reference numerals:
1, upper traveling valve cage, 2, travelling valve ball, 3, travelling valve seat, 4, upward-traveling valves seated connection head, 5, top connection, 6, long-plunger, 7, gap bridge outer tube, 8, short pump barrel, 9, lower pump line, 10, lower travelling valve cover, 11, lower travelling valve seated connection head, 12, lower contact, 13, 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 this utility model provides a kind of long-plunger gap bridge oil well pump, it is capable of the lifting of downhole crude, solve fouling and the problem of upward-traveling valves fracture in pump barrel, improve its suitability, meet the use requirement needing to load tail extension oil well under deep-well or pump.
The technical solution adopted in the utility model is:
A kind of long-plunger gap bridge oil well pump, as shown in Figure 1, including gap bridge outer tube 7, the two ends of gap bridge outer tube 7 connect a top connection 5 and a lower contact 12 respectively, short pump barrel 8 and lower pump line 9 it is cased with in gap bridge outer tube 7, short pump barrel 8 upper end is unsettled, threaded with lower pump line 9 in short pump barrel 8 lower end, threaded with lower contact 12 in lower pump line 9 lower end, it is cased with long-plunger 6 in short pump barrel 8 and lower pump line 9, long-plunger 6 is slidably matched with short pump barrel 8, and lower contact 12 connects has inlet valve 13, inlet valve 13 to be connected on the female thread of lower contact 12.
In the present embodiment, the upper end of described long-plunger 6 is connected with upward-traveling valves seated connection head 4 and upper traveling valve cage 1 in turn, the lower end of long-plunger 6 is connected with lower travelling valve cover 10 and lower travelling valve seated connection head 11 in turn, the inside of upper traveling valve cage 1 and lower travelling valve cover 10 is respectively provided with a travelling valve ball 2 and a travelling valve seat 3, the outside dimension of upper traveling valve cage 1 is more than short pump barrel 8 internal diameter size, do not enter when upper traveling valve cage 1 works in short pump barrel 8, can take to increase the modes such as wall thickness, improve upper traveling valve cage intensity, the problem solving upward-traveling valves fracture.
Work process of the present utility model is: during up stroke, long-plunger 6 is up, upward-traveling valves ball and the lower travelling valve ball of long-plunger 6 lower end connection that long-plunger 6 upper end connects are closed under gravity, crude oil in short pump barrel 8 pump chamber is promoted to ground, meanwhile, the lower pump line 9 pump chamber volume of long-plunger 6 lower end increases, and pressure reduces, inlet valve 13 is opened under pump inside and outside differential pressure effect, and in well, crude oil enters into lower pump line 9 pump chamber by inlet valve 13.
During down stroke, long-plunger 6 is descending, inlet valve 13 cuts out under Gravitative Loads, lower pump line 9 pump chamber volume-diminished, pressure raises, upward-traveling valves ball and the lower travelling valve ball of long-plunger 6 lower end connection that long-plunger 6 upper end connects are opened, and the crude oil in lower pump line 9 pump chamber flows into short pump barrel 8 pump chamber through long-plunger 6 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, described gap bridge outer tube 7 is connected with the female thread of top connection 5 and lower contact 12, the supporter of composition long-plunger gap bridge oil well pump, short pump barrel 8 and lower pump line 9 to its inside play a protective role, described short pump barrel 8 and lower pump line 9 form the work pump barrel of long-plunger gap bridge oil well pump, lower pump line 9 lower end of the work pump barrel only lower end of described long-plunger gap bridge oil well pump is connected with the female thread of the lower contact 12 of gap bridge outer tube 7 lower end, upper end is unsettled, avoid 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 long-plunger gap bridge oil well pump, improve its suitability.
Embodiment 3:
On the basis of embodiment 1, the length of described long-plunger 6 is more than the length of short pump barrel 8, i.e. long-plunger 6 pump supreme, bottom dead centre time, short pump barrel 8 is all stretched out in the upper end of long-plunger 6 or lower end, thus ensureing that whole stroke procedure middle long column plug 6 has relative motion all the time with the full section of short pump barrel 8 so that incrustation ion is not easy at pump barrel and plunger surface formation of deposits dirt layer.
Inlet valve 13 is existing product, describes the most in detail.
Claims (7)
1. a long-plunger gap bridge oil well pump, it is characterized in that: include gap bridge outer tube (7), the two ends of gap bridge outer tube (7) connect a top connection (5) and a lower contact (12) respectively, short pump barrel (8) and lower pump line (9) it is cased with in gap bridge outer tube (7), short pump barrel (8) upper end is unsettled, threaded with lower pump line (9) in short pump barrel (8) lower end, threaded with lower contact (12) in lower pump line (9) lower end, it is cased with long-plunger (6) in short pump barrel (8) and lower pump line (9), long-plunger (6) is slidably matched with short pump barrel (8), the lower end of long-plunger (6) is connected with lower travelling valve cover (10) and lower travelling valve seated connection head (11) in turn, the upper connection of lower contact (12) has inlet valve (13).
A kind of long-plunger gap bridge oil well pump the most according to claim 1, it is characterised in that: the upper end of described long-plunger (6) is connected with upward-traveling valves seated connection head (4) and upper traveling valve cage (1) in turn.
A kind of long-plunger gap bridge oil well pump the most according to claim 2, it is characterised in that: described upper traveling valve cage (1) and the inside of lower travelling valve cover (10) are respectively provided with a travelling valve ball (2) and a travelling valve seat (3).
A kind of long-plunger gap bridge oil well pump the most according to claim 1, it is characterised in that: the length of described long-plunger (6) is more than the length of short pump barrel (8).
A kind of long-plunger gap bridge oil well pump the most according to claim 2, it is characterised in that: the outside dimension of described upper traveling valve cage (1) is more than short pump barrel (8) internal diameter size.
A kind of long-plunger gap bridge oil well pump the most according to claim 1, it is characterised in that: described inlet valve (13) is connected on the female thread of lower contact (12).
A kind of long-plunger gap bridge oil well pump the most according to claim 1, it is characterized in that: described short pump barrel (8) and the work pump barrel of lower pump line (9) composition oil well pump, lower pump line (9) lower end of described oil well pump work pump barrel only lower end is connected with the female thread of the lower contact (12) of gap bridge outer tube (7) lower end, and upper end is unsettled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620282987.5U CN205638872U (en) | 2016-04-07 | 2016-04-07 | Oil -well pump of passing a bridge is filled in to long column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620282987.5U CN205638872U (en) | 2016-04-07 | 2016-04-07 | Oil -well pump of passing a bridge is filled in to long column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638872U true CN205638872U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620282987.5U Active CN205638872U (en) | 2016-04-07 | 2016-04-07 | Oil -well pump of passing a bridge is filled in to long column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638872U (en) |
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2016
- 2016-04-07 CN CN201620282987.5U patent/CN205638872U/en active Active
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