CN208089518U - A kind of layer mining oil-well pump - Google Patents
A kind of layer mining oil-well pump Download PDFInfo
- Publication number
- CN208089518U CN208089518U CN201721889073.6U CN201721889073U CN208089518U CN 208089518 U CN208089518 U CN 208089518U CN 201721889073 U CN201721889073 U CN 201721889073U CN 208089518 U CN208089518 U CN 208089518U
- Authority
- CN
- China
- Prior art keywords
- pump
- valve
- assembly
- draining
- pump barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
A kind of oil tool technical field of separate zone production and anti-gas lock when the utility model belongs to oil extraction in oil field, and in particular to layer mining oil-well pump.Assembly for plunger is set in the pump barrel of pump barrel assembly, draining assembly is connected below pump barrel assembly, connects bridge-type connector below draining assembly, bridge-type connector lower end is connected and fixed valve assembly；Screen casing is arranged in the outside of bridge-type connector, and screen casing upper end connects the lower end outside of variable buckle box cupling, and screen casing lower end is connected and fixed the standing valve cover of valve assembly by screen casing support ring；Variable buckle box cupling upper end connects outer tube, variable buckle box cupling lower end inside connects bridge-type connector top, gas bag assembly is set on the upper pump barrel outer wall, annular space feed pathway and lateral feed pathway are provided on bridge-type connector, it is provided with gas-liquid channel and lower gas-liquid channel on upper pump barrel, venthole is offered on gas bag assembly.The interlayer interferences that the different oily interlayer pressure different bands of the utility model effective solution are come, avoid oil well pump due to gas lock phenomenon caused by gas.
Description
Technical field
The oil tool technical field of separate zone production and anti-gas lock when the utility model belongs to oil extraction in oil field, specifically relates to
And a kind of layer mining oil-well pump.
Background technology
During oil extraction in oil field, many oil wells have multiple crude oil layers for acquiring in shaft bottom, but the pressure of different oil reservoirs
Difference, if mixed adopt, it will cause stress high oil reservoir and the crude oil under it is pressed into ground end, therefore ordinary oil pump mixes layer oil pumping
Efficiency is very low；Natural gas is all accompanied by while some stratum are fuel-displaced to be discharged, gas can be built up in plunger lower piston cylinder,
Oil well pump is caused gas lock phenomenon occur；And existing oil well pump for separated zone operation all uses upper layer annular plate valve feed liquor structure at present, annular plate valve is by two
A or four check valve compositions, fail as long as one of failure of check valve whole device, so conventional batch layers apart pumps the longevity
Short, poor reliability is ordered, and cannot be used in the well with natural gas.
Invention content
The purpose of this utility model is that being provided for problems of the prior art, a kind of service life is long, operating mode is steady
Fixed reliable layer mining oil-well pump, the gas which avoids associated gas or inject later during oil extraction make oil well pump
At gas lock phenomenon.
The technical solution of the utility model is：
A kind of layer mining oil-well pump, including box cupling, pump barrel assembly, gas bag assembly, assembly for plunger, draining assembly, bridge-type
Connector, screen casing, screen casing support ring and fixed valve assembly, pump barrel assembly includes upper pump barrel, lower pump barrel, outer tube, outer tube joint, upper pump
Cylinder box cupling and lower pump barrel box cupling, the box cupling upper inside wall are equipped with the internal thread of connected pipes, and box cupling inner wall lower is equipped with interior spiral shell
Line is connected with upper pump barrel upper end, the upper end of the upper upper pump barrel box cupling of pump barrel lower end outside connection, and the connection of upper pump barrel box cupling lower end is outer
The lower end of the upper end of pipe fitting, outer tube joint connects outer tube, and outer tube is arranged in the outside of lower pump barrel, lower pump barrel box cupling upper end connection
The lower end of lower pump barrel, lower pump barrel box cupling lower end connect draining assembly, assembly for plunger, pump barrel assembly are arranged in the pump barrel of pump barrel assembly
Lower section connects draining assembly, connects bridge-type connector below draining assembly, bridge-type connector lower end is connected and fixed valve assembly；Screen casing is arranged
In the outside of bridge-type connector, screen casing upper end connects the lower end outside of variable buckle box cupling, and screen casing lower end is connected solid by screen casing support ring
Determine the standing valve cover of valve assembly；Variable buckle box cupling upper end connects outer tube, and variable buckle box cupling lower end inside connects bridge-type connector top, described
Upper pump barrel outer wall on gas bag assembly is set, be provided with annular space feed pathway and lateral feed pathway, upper pump barrel on bridge-type connector
On be provided with gas-liquid channel and lower gas-liquid channel, offer venthole on gas bag assembly.
Specifically, be provided on the inside of the upper pump barrel pump upper traveling valve cage, upper pump lower travelling valve cover, upper pump valve ball and
Upper pump valve seat, the upper pump valve ball of connection below upper pump upper traveling valve cage, upper pump valve ball seat is on upper pump valve seat, upper pump lower travelling valve cover
Lower section is connect with assembly for plunger；Be provided on the inside of the lower pump barrel lower pump upper traveling valve cage, lower pump valve ball, lower pump valve seat, under
Lower travelling valve cover is pumped, lower pump valve ball is connected below lower pump upper traveling valve cage, on lower pump valve seat, lower pump valve seat connects lower pump valve ball seat
Connect lower pump lower travelling valve cover.
Specifically, the gas bag assembly includes gas bag cap and gas inclusion, it is arranged between the gas bag cap and gas inclusion
Lengthen steel loop, steel loop, fixed ring is fixedly connected between gas bag cap and steel loop by surely following closely one, lengthen steel loop by surely follow closely two with
Upper pump barrel is fixedly connected, and fixed ring, which is set to, to be lengthened between steel loop and steel loop；Gas bag cap connect with gas inclusion externally threaded one
End is equipped with escape, which is connect with the first cambered surface and the second cambered surface successively by chamfered transition, and second cambered surface is logical
Chamfered transition is crossed to connect with the first half the circumference of the sleeve where it joins the shoulder of negative angle torque；Gas inclusion internal thread one end is equipped with and the first cambered surface on gas bag cap 3
With the second cambered surface successively corresponding conical surface and cylindrical surface and negative angle torque corresponding with the first half the circumference of the sleeve where it joins the shoulder of negative angle torque
Two half the circumference of the sleeve where it joins the shoulders, after the gas bag cap and gas inclusion screw-thread fit, primary seal structure, the second cambered surface by the first cambered surface to the conical surface
Secondary seal structure and the first half the circumference of the sleeve where it joins the shoulder of negative angle torque and the matched negative angle torque half the circumference of the sleeve where it joins the shoulder of the second half the circumference of the sleeve where it joins the shoulder to cylindrical surface is close
The three-level metal to metal interference seal of seal structure
Specifically, the assembly for plunger includes upper plug, lower plunger, double pin ends one, double pin ends two, pull rod and drawing
Knock-off joint；One lower end of double pin ends connects upper plug, the upper pump valve seat of upper end connection；Two upper end connecting rod of double pin ends, lower end
The lower plunger of connection；Lower travelling valve cover, lower end connecting rod are pumped in the connection of rod head upper end.
Specifically, the draining assembly includes pressure cover, draining cover, oil-releasing fixed valve cover, draining valve ball, draining valve bonnet, lets out
Beam hanger and draining pin, the pressure cover are linked together by draining pin and draining bar, and draining cover is threadedly attached in
Draining bar upper end, draining cover is interior to be arranged draining valve ball, and oil-releasing fixed valve cover is arranged above draining valve ball, is arranged below draining valve ball
Setting O types sealing ring two in draining valve bonnet, draining bar and pressure cover adapted space, draining bar is connect with lower pump barrel box cupling, draining bar
O-ring seal three is set in the space between lower pump barrel box cupling.
Specifically, the fixation valve assembly includes standing valve cover, valve ball, fixed valve base and fixed valve union；Fixed valve
Cover is connected to the lower end of bridge-type connector, and standing valve cover lower end is connected through a screw thread fixed valve union, and standing valve cover is internally provided with solid
Determine valve seat and valve ball.
Specifically, being arranged alternately mounting O-shaped sealing ring one and steel loop in space between the upper pump barrel and gas bag cap.
The utility model has the beneficial effects that：Compact-sized, dependable performance, this oil well pump can be connected directly between flow string
Upper use, there are two different oil inlet passages for layering oil well pump setting, ensure that the liquid in two oil reservoirs is not interfere with each other；Bridge
The setting of formula connector avoids the interlayer interference that different oily interlayer pressure different bands are come；The setting of gas bag assembly avoids oil recovery
When associated gas or the gas that injects later gas lock phenomenon is caused to oil well pump.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross-sectional view of bridge-type connector；
Fig. 3 is the connection diagram of gas bag cap and gas inclusion.
3 gas bag cap 4 of pump barrel lengthens one 6 steel loop 7 of steel loop 5O types sealing ring surely one 8 fixed rings 9 of nail on 1 box cupling 2
Pump valve ball on pump upper traveling valve cage 12 on 2 10 gas inclusions 11 of steady nail
17 rod head of lower travelling valve cover is pumped on 13 on 14 pairs of pin ends of pump valve seat, one 15 upper plug 16
19 pull rod of pump barrel box cupling, 20 pipe fitting, 21 times pump barrels, 22 outer tube, 23 pairs of pin ends two on 18
24 times plungers, 25 times pump lower travelling valve cover 26 times pump valve balls, 27 times pump valve seats
28 times 29 variable buckle box cuplings of pump lower travelling valve cover, 30 times pressure 32 draining covers of cover of pump barrel box cupling 31
33 oil-releasing fixed valve cover, 34 draining valve ball, 35 draining valve bonnet, 36 draining bar 37O types sealing ring two
38 42 standing valve cover of draining pin 39O types sealing ring 3 40 bridge-type connector, 41 screen casing, 43 valve ball
44 fixed valve base, 45 screen casing support ring 46 fixes 48 times gas-liquid channels of gas-liquid channel on valve union 47
49 50 lateral feed pathway of annular space feed pathway, 51 the first half the circumference of the sleeve where it joins the shoulder of negative angle torque
52 53 cylindrical surface of the second half the circumference of the sleeve where it joins the shoulder of negative angle torque, 54 conical surface, 55 escape, 56 second cambered surface
57 first cambered surfaces.
Specific implementation mode
It is a kind of structural schematic diagram of layer mining oil-well pump as shown in Figure 1.The oil well pump include box cupling 1, pump barrel assembly,
Gas bag assembly, assembly for plunger, draining assembly, bridge-type connector 40, screen casing 41, screen casing support ring 45 and fixed valve assembly.
Pump barrel assembly includes upper pump barrel 2, lower pump barrel 21, outer tube 22, outer tube joint 20, upper pump barrel box cupling 18 and lower pump barrel
Box cupling 30,1 upper inside wall of the box cupling are equipped with the internal thread of connected pipes, and 1 inner wall lower of box cupling is equipped with internal thread and upper pump barrel 2
Upper end is connected, and 2 lower end outside of upper pump barrel connects the upper end of upper pump barrel box cupling 18, and upper 18 lower end of pump barrel box cupling connects outer tube joint
The lower end of 20 upper end, outer tube joint 20 connects outer tube 22, and outer tube 22 is arranged in the outside of lower pump barrel 21, on lower pump barrel box cupling 30
The lower end of pump barrel 21 under the connection of end, lower 30 lower end of pump barrel box cupling connect draining assembly, and setting plunger is total in the pump barrel of pump barrel assembly
At connection draining assembly below pump barrel assembly, draining assembly lower section connection bridge-type connector 40,40 lower end of bridge-type connector is connected and fixed
Valve assembly；Screen casing 41 is arranged in the outside of bridge-type connector 40, and 41 upper end of screen casing connects the lower end outside of variable buckle box cupling 29, screen casing
41 lower ends are connected and fixed the standing valve cover 42 of valve assembly by screen casing support ring 45；29 upper end of variable buckle box cupling connects outer tube 22, becomes
29 lower end inside of snapping hoop connects 40 top of bridge-type connector, and gas bag assembly, bridge-type connector 40 is arranged on 2 outer wall of upper pump barrel
On be provided with annular space feed pathway 49 and lateral feed pathway 50, it is logical that gas-liquid channel 47 and lower gas-liquid are provided on upper pump barrel 2
Road 48 offers venthole on gas bag assembly.
2 inside of upper pump barrel is provided with pump upper traveling valve cage 11, upper pump lower travelling valve cover 16, upper 12 and of pump valve ball
Upper pump valve seat 13, the upper pump valve ball 12 of the lower section of upper pump upper traveling valve cage 11 connection, 12, upper pump valve ball on upper pump valve seat 13, on
16 lower section of pump lower travelling valve cover is connect with assembly for plunger；21 inside of the lower pump barrel be provided with lower pump upper traveling valve cage 25, under
Pump valve ball 26, lower pump valve seat 27, lower pump lower travelling valve cover 28, the lower pump valve ball 26 of 25 lower section connection of lower pump upper traveling valve cage, lower pump
Valve ball 26 pumps lower travelling valve cover 28 on lower pump valve seat 27 under the lower connection of pump valve seat 27.
The gas bag assembly includes gas bag cap 3 and gas inclusion 10, is arranged between the gas bag cap 3 and gas inclusion 10 and adds
Long steel loop 4, steel loop 6, fixed ring 8 are fixedly connected between gas bag cap 3 and steel loop 6 by surely following closely 1, lengthen steel loop 4 by surely following closely
29 are fixedly connected with upper pump barrel 2, and fixed ring 8, which is set to, to be lengthened between steel loop 4 and steel loop 6；The upper pump barrel 2 and gas bag cap 3 it
Between space in be arranged alternately installation O types sealing ring 1 and steel loop 6.Gas bag cap 3 connect with gas inclusion 10 externally threaded one
End is equipped with escape 55, which is connect with the first cambered surface 57 and the second cambered surface 56 successively by chamfered transition, and described the
Two cambered surfaces 56 are connect by chamfered transition with the first half the circumference of the sleeve where it joins the shoulder of negative angle torque 51；10 internal thread one end of gas inclusion is equipped with and gas bag cap
The first cambered surface and the second cambered surface on 3 successively the corresponding conical surface 54 and cylindrical surface 53 and with 51 phase of the first half the circumference of the sleeve where it joins the shoulder of negative angle torque
Corresponding the second half the circumference of the sleeve where it joins the shoulder of negative angle torque 52, after 10 screw-thread fit of the gas bag cap 3 and gas inclusion, the first cambered surface 57 is to the conical surface 54
Primary seal structure, the second cambered surface 56 is to the secondary seal structure and the first half the circumference of the sleeve where it joins the shoulder of negative angle torque 51 and negative angle on cylindrical surface 53
Spend the three-level metal to metal interference seal of 52 matched negative angle torque half the circumference of the sleeve where it joins the shoulder sealing structure of the second half the circumference of the sleeve where it joins the shoulder of torque.
The assembly for plunger includes upper plug 15, lower plunger 24, double pin ends 1, double pin ends 2 23, pull rod 19
With rod head 17；One 14 lower end of double pin ends connects upper plug 15, and upper end connects upper pump valve seat 13；2 23 upper end of double pin ends
Connecting rod 19, plunger 24 under the connection of lower end；Pump lower travelling valve cover 16, lower end connecting rod in the connection of 17 upper end of rod head
19。
The draining assembly include pressure cover 31, draining cover 32, oil-releasing fixed valve cover 33, draining valve ball 34, draining valve bonnet 35,
Draining bar 36 and draining pin 38, the pressure cover 31 are linked together by draining pin 38 and draining bar 36, draining cover 32
It is threadedly attached in 36 upper end of draining bar, draining valve ball 34 is set in draining cover 32,34 top setting draining of draining valve ball is solid
Determine valve bonnet 33,34 lower section setting draining valve bonnet 35 of draining valve ball, draining bar 36 and pressure cover and O-ring seal are arranged in 31 adapted spaces
37 2, draining bar 36 is connect with lower pump barrel box cupling 30, and it is close that O types are arranged in the space between draining bar 36 and lower pump barrel box cupling 30
Seal 39 3.
The fixation valve assembly includes standing valve cover 42, valve ball 43, fixed valve base 44 and fixed valve union 46；It is fixed
Valve bonnet 42 is connected to the lower end of bridge-type connector 40, and 42 lower end of standing valve cover is connected through a screw thread fixed valve union 46, standing valve cover
42 are internally provided with fixed valve base 44 and valve ball 43.
Lock compensation packer is connected under being needed when layer mining oil-well pump work provided by the utility model, by two oil
Layer is separated, and layer mining oil-well pump work is divided into two processes of oil pumping and oil extraction.
When pumping operation process, self-locking compensates packer setting, it would be desirable to which two oil reservoirs of oil recovery are separated；Pump barrel is total
At fixed, assembly for plunger uplink under the pulling force effect of pumping unit and sucker rod, upper plug 15 and the cooperation of upper pump barrel 2 exist
Negative pressure cavity one is formed in the upper pump barrel 2 below of upper plug 15；Lower plunger 24 and lower pump barrel 21 are in lower plunger lower pump barrel 21 below
Interior formation negative pressure cavity two；In the drive uplink of sucker rod, negative pressure cavity one and negative pressure cavity two increase assembly for plunger simultaneously.At this point,
Self-locking compensates the valve ball 43 of packer lower layer's mixing liquid fixed valve assembly open-top under pressure, through on bridge type connector 40
Annular space feed pathway 49 reach the annular chamber between variable buckle box cupling 29 and lower pump barrel box cupling 30, subsequently into outer tube 22 and under
The annular chamber of pump barrel 21 finally enters the annular space formed between upper pump barrel 2 and upper plug 15 using rod head 17；
Since specific gravity of gas is small so gas follows 15 uplink of upper plug closely, when rod head 17 goes upward to the position of gas bag assembly, because
It can be entered in gas bag assembly and stored by lower gas-liquid channel 48 for the factor gas of pressure difference；Self-locking simultaneously compensates packer
Supernatant liquid is by lateral feed pathway 50 of the screen casing 41 through bridge type connector 40, then through 36 open-top draining assembly of draining bar
Draining valve ball 34 is entered between lower pump barrel 21 and lower plunger 15 and is formed then in turn through oil-releasing fixed valve cover 33, pressure cover 31
Annular space.
When oil extraction process, sucker rod downlink, assembly for plunger downlink, the annular sky formed between upper pump barrel 2 and upper plug 15
Between, the annular space that is formed with lower plunger 24 of lower pump barrel 21 becomes smaller simultaneously；The annular space that lower pump barrel 21 and lower plunger 24 are formed
Interior liquid flows through lower travelling valve 16 after 17 open-top valve ball of rod head, and the annular between upper pump barrel 2 and upper plug 15 is empty
Between liquid accumulation；When the upward-traveling valves 11 of assembly for plunger are after upper gas-liquid channel 47, gas meeting in gas bag assembly and on
Liquid displacement inside pump barrel 2, gas proposes out of gas bag, and liquid enters top oil pipe by upper pump barrel 2, so reaches point
Layer exploitation and the purpose for preventing gas lock.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than limits it
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (7)
1. a kind of layer mining oil-well pump, including box cupling (1), pump barrel assembly, gas bag assembly, assembly for plunger, draining assembly, bridge-type
Connector (40), screen casing (41), screen casing support ring (45) and fixed valve assembly, pump barrel assembly includes upper pump barrel (2), lower pump barrel
(21), outer tube (22), outer tube joint (20), upper pump barrel box cupling (18) and lower pump barrel box cupling (30), box cupling (1) upper inside wall
Internal thread equipped with connected pipes, box cupling (1) inner wall lower are connected equipped with internal thread with upper pump barrel (2) upper end, upper pump barrel (2)
The upper end of the upper pump barrel box cupling (18) of lower end outside connection, the upper end of upper pump barrel box cupling (18) lower end connection outer tube joint (20), outside
The lower end connection outer tube (22) of pipe fitting (20), outer tube (22) are arranged on the outside of lower pump barrel (21), lower pump barrel box cupling (30)
The lower end of the lower pump barrel (21) of end connection, lower pump barrel box cupling (30) lower end connect draining assembly, which is characterized in that the pump of pump barrel assembly
Cylinder is interior to be arranged assembly for plunger, and draining assembly is connected below pump barrel assembly, connects bridge-type connector (40) below draining assembly, bridge-type connects
Head (40) lower end is connected and fixed valve assembly；Screen casing (41) setting becomes in the outside of bridge-type connector (40), the connection of screen casing (41) upper end
The lower end outside of snapping hoop (29), screen casing (41) lower end are connected and fixed the standing valve cover of valve assembly by screen casing support ring (45)
(42)；Variable buckle box cupling (29) upper end connects outer tube (22), and variable buckle box cupling (29) lower end inside connects bridge-type connector (40) top, institute
Gas bag assembly is set on upper pump barrel (2) outer wall stated, be provided on bridge-type connector (40) annular space feed pathway (49) and laterally into
Liquid channel (50) is provided with gas-liquid channel (47) and lower gas-liquid channel (48) on upper pump barrel (2), is offered on gas bag assembly logical
Stomata.
2. layer mining oil-well pump according to claim 1, which is characterized in that be provided on the inside of the upper pump barrel (2)
Pump upper traveling valve cage (11), upper pump lower travelling valve cover (16), upper pump valve ball (12) and upper pump valve seat (13), upper pump upper traveling valve cage
(11) the upper pump valve ball (12) of lower section connection, upper pump valve ball (12) seat is on upper pump valve seat (13), under upper pump lower travelling valve cover (16)
Side is connect with assembly for plunger；Be provided on the inside of the lower pump barrel (21) lower pump upper traveling valve cage (25), lower pump valve ball (26), under
Pump valve seat (27), lower pump lower travelling valve cover (28), the lower pump valve ball (26) of lower pump upper traveling valve cage (25) lower section connection, lower pump valve ball
(26) seat pumps lower travelling valve cover (28) on lower pump valve seat (27) under lower pump valve seat (27) connection.
3. layer mining oil-well pump according to claim 1, which is characterized in that the gas bag assembly includes gas bag cap (3)
With gas inclusion (10), setting lengthening steel loop (4), steel loop (6), fixed ring between the gas bag cap (3) and gas inclusion (10)
(8), be fixedly connected between gas bag cap (3) and steel loop (6) by surely following closely one (7), lengthen steel loop (4) by surely follow closely two (9) with it is upper
Pump barrel (2) is fixedly connected, and fixed ring (8), which is set to, to be lengthened between steel loop (4) and steel loop (6)；Gas bag cap (3) and gas inclusion
(10) connect externally threaded one end be equipped with escape (55), the escape (55) by chamfered transition successively with the first cambered surface
(57) connected by chamfered transition and the first half the circumference of the sleeve where it joins the shoulder of negative angle torque (51) with the second cambered surface (56) connection, second cambered surface (56)
It connects；Gas inclusion (10) internal thread one end is equipped with and the first cambered surface and the second cambered surface corresponding conical surface successively on gas bag cap (3)
(54) and cylindrical surface (53) and the second half the circumference of the sleeve where it joins the shoulder of negative angle torque corresponding with negative angle torque the first half the circumference of the sleeve where it joins the shoulder (51) (52), described
After gas bag cap (3) and gas inclusion (10) screw-thread fit, primary seal structure, second cambered surface of the first cambered surface (57) to the conical surface (54)
(56) the second half the circumference of the sleeve where it joins the shoulder of the secondary seal structure to cylindrical surface (53) and the first half the circumference of the sleeve where it joins the shoulder of negative angle torque (51) and negative angle torque
(52) the three-level metal to metal interference seal of matched negative angle torque half the circumference of the sleeve where it joins the shoulder sealing structure.
4. layer mining oil-well pump according to claim 2, which is characterized in that the assembly for plunger includes upper plug
(15), lower plunger (24), double pin ends one (14), double pin ends two (23), pull rod (19) and rod head (17)；Double pin ends
One (14) lower end connects upper plug (15), the upper pump valve seat (13) of upper end connection；Double pin ends two (23) upper end connecting rod (19),
The lower plunger (24) of lower end connection；Pump lower travelling valve cover (16) in the connection of rod head (17) upper end, lower end connecting rod (19).
5. layer mining oil-well pump according to claim 1, which is characterized in that the draining assembly includes pressure cover (31), lets out
Oil cover (32), oil-releasing fixed valve cover (33), draining valve ball (34), draining valve bonnet (35), draining bar (36) and draining pin (38),
The pressure cover (31) is linked together by draining pin (38) and draining bar (36), and draining cover (32) is threadedly attached in
Draining bar (36) upper end, the interior setting draining valve ball (34) of draining cover (32), oil-releasing fixed valve cover is arranged in draining valve ball (34) top
(33), setting is O-shaped close in setting draining valve bonnet (35) below draining valve ball (34), draining bar (36) and pressure cover (31) adapted space
Seal two (37), draining bar (36) are connect with lower pump barrel box cupling (30), the sky between draining bar (36) and lower pump barrel box cupling (30)
Interior setting O-ring seal three (39).
6. layer mining oil-well pump according to claim 1, which is characterized in that the fixation valve assembly includes standing valve cover
(42), valve ball (43), fixed valve base (44) and fixed valve union (46)；Standing valve cover (42) is connected under bridge-type connector (40)
End, standing valve cover (42) lower end are connected through a screw thread fixed valve union (46), and standing valve cover (42) is internally provided with fixed valve base
(44) and valve ball (43).
7. layer mining oil-well pump according to claim 2, which is characterized in that between the upper pump barrel (2) and gas bag cap (3)
Space in be arranged alternately mounting O-shaped sealing ring one (5) and steel loop (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889073.6U CN208089518U (en) | 2017-12-29 | 2017-12-29 | A kind of layer mining oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889073.6U CN208089518U (en) | 2017-12-29 | 2017-12-29 | A kind of layer mining oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208089518U true CN208089518U (en) | 2018-11-13 |
Family
ID=64065090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721889073.6U Active CN208089518U (en) | 2017-12-29 | 2017-12-29 | A kind of layer mining oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208089518U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611321A (en) * | 2018-11-09 | 2019-04-12 | 大港油田集团有限责任公司 | A kind of bilayer gas-tight separate extracting pump |
| CN110735607A (en) * | 2019-12-02 | 2020-01-31 | 延长油田股份有限公司南泥湾采油厂 | oil-well pump gap bridge pressing setting packer device and application method |
| CN111335852A (en) * | 2018-12-18 | 2020-06-26 | 中国石油天然气股份有限公司 | Oil-water separate production pipe column and oil-water separate production method |
-
2017
- 2017-12-29 CN CN201721889073.6U patent/CN208089518U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611321A (en) * | 2018-11-09 | 2019-04-12 | 大港油田集团有限责任公司 | A kind of bilayer gas-tight separate extracting pump |
| CN111335852A (en) * | 2018-12-18 | 2020-06-26 | 中国石油天然气股份有限公司 | Oil-water separate production pipe column and oil-water separate production method |
| CN110735607A (en) * | 2019-12-02 | 2020-01-31 | 延长油田股份有限公司南泥湾采油厂 | oil-well pump gap bridge pressing setting packer device and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208089518U (en) | A kind of layer mining oil-well pump | |
| US8535024B2 (en) | Sand plunger for downhole pump | |
| US9518457B2 (en) | Downhole tool for opening a travelling valve assembly of a reciprocating downhole pump | |
| US10738575B2 (en) | Modular top loading downhole pump with sealable exit valve and valve rod forming aperture | |
| US20080247893A1 (en) | High Compression Downhole Pump | |
| US9856864B2 (en) | Reciprocating subsurface pump | |
| CN201137564Y (en) | Down-hole oil pump | |
| US2797642A (en) | 2-zone pump | |
| CN206988079U (en) | A kind of fluid pressure type oil well pump | |
| CN103498785B (en) | Fire-driving oil-well pump | |
| CN203081734U (en) | Anti-airlock hydraulic feedback oil well pump | |
| RU2388901C1 (en) | Well operation device | |
| CN111188758A (en) | Anti-gas lock oil-gas mixed pump and pipe column | |
| RU2644797C1 (en) | Oil well pump | |
| CN102425396B (en) | A kind of sucker-rod pump oil extraction system for oil well | |
| CN201554632U (en) | Eccentric gap bridge separate-pumping mixed-recovery oil well pump | |
| RU168316U1 (en) | DRILLING PUMP UNIT FOR OPERATIONAL COLUMNS OF SMALL DIAMETER | |
| CN202017604U (en) | High-efficiency oil well pump | |
| CN201321968Y (en) | Layer mining oil-well pump | |
| CN103821703A (en) | Underground hydraulic piston pump | |
| RU2321772C1 (en) | Oil-well sucker-rod pump | |
| CN209875142U (en) | Oil-water separation system under pumping and production-injection integrated pump well | |
| CN203640970U (en) | Underground hydraulic piston pump | |
| CN209586343U (en) | A kind of layering gaslift reduces the flow string of bottom pressure | |
| CN203463264U (en) | Eccentric oil inlet respective-pumping and mixed-outtake oil pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |