CN209011806U - Upright double-fixed-valve-ball eccentric oil-drainage oil pump - Google Patents
Upright double-fixed-valve-ball eccentric oil-drainage oil pump Download PDFInfo
- Publication number
- CN209011806U CN209011806U CN201821682120.4U CN201821682120U CN209011806U CN 209011806 U CN209011806 U CN 209011806U CN 201821682120 U CN201821682120 U CN 201821682120U CN 209011806 U CN209011806 U CN 209011806U
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- China
- Prior art keywords
- oil
- eccentric
- cylinder
- draining
- valve ball
- 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.)
- Expired - Fee Related
Links
- 239000003129 oil well Substances 0.000 claims abstract description 15
- 239000000446 fuel Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 abstract description 45
- 239000010779 crude oil Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000005086 pumping Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 6
- 239000013043 chemical agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
An oil-discharging oil-well pump with two eccentric fixed valve balls. The problem that crude oil in a pump barrel and an upper oil pipe cannot be completely discharged during the existing pump detection operation is mainly solved. The method is characterized in that: the outer side of the bottom of the fixed valve upper joint (8) is connected with a fixed valve outer cylinder (20), an eccentric cylinder (10) is arranged inside the fixed valve outer cylinder (20), a longitudinal eccentric oil drainage channel (A) is formed in the eccentric cylinder (10), an oil drainage valve ball (15) is arranged inside the eccentric cylinder (10), an oil drainage valve ball pressing cap (14) is arranged on the upper portion of the oil drainage valve ball (15), and the oil drainage valve ball pressing cap (14) is fixed on the eccentric cylinder (10) through a pin (13). When the oil pump capable of draining oil is used, after the pumping rod and the plunger are lifted out during pump checking operation, the fixed valve ball can be opened through simple positive pressing operation, and the oil draining passage is opened, so that crude oil in the oil pipe is completely drained into the oil sleeve space.
Description
Technical field
The utility model relates to the oil well pump field used in oil field, it is specifically a kind of just setting double standing valve ball eccentric type can
Draining oil well pump.
Background technique
Oil well pump is the important downhole tool that crude oil is given rise to ground, in pump detection and workover, in pump barrel and top oil pipe
Crude oil can not release, and taking ground to will increase environmental protection construction investment and environmentally friendly risk.The existing dress realizing crude oil in oil pipe and releasing
There are mainly two types of setting, one is bleeder is installed additional in the case where pumping upper tubing string or pump, another kind is oil drain pump.
Wherein the application of bleeder has the following problems: first is that the bleeders such as the sleeve type installed additional on pump, rotary cannot
It fully achieves pump barrel and crude oil in oil pipe releases, and mechanically actuated success rate is low.Second is that pump is lower to install hammering oil discharger additional, by
Viscosity of crude, wax deposition situation etc. influence, and bleeder draining success rate is low, draining speed is slow.Third is that the oil leak hole of bleeder needs
It seals, corrosive environment caused by the temperature, pressure and dosing by underground complexity is influenced, and easily there are problems that poorly sealed leakage.Four
It is install bleeder additional at high cost, promotes that investment is big, consumption is big, the period is long, it can not overall application.
The application of existing oil drain pump has the following problems: first is that oil drain pump of the oil leak hole on pump barrel wall top, long pump barrel
The crude oil of lower part can not release completely.Second is that throwing the oil drain pump that bar hits draining pin, substantially oil well pump is let out with impacting type
The combining form of oily device has that hammering oil discharger draining success rate is low, draining speed is slow.Third is that decentralization plunger rotation
Formula oil drain pump is operated by mechanical rotary sucker rod and is realized, easy damaged roofbolt；And the rubber material that draining channel seal uses
Matter, in underground the Temperature-pressure Conditions of complexity and add chemical agent viscosity reduction in the environment of, be easy to appear leakage.Fourth is that using pulling method
Oil drain pump, drainage device is opened by force by pulling and running tool, not only to increase flow charts, increase operating cost, there is also uses more
Rubber material sealing draining duct the Temperature-pressure Conditions of underground complexity and plus in the environment of chemical agent viscosity reduction, be easy to appear
Leakage problem, and mechanical fishing success ratio is low.
The reason of can not releasing from pump barrel when causing pump detection and workover and top crude oil in oil pipe, is analyzed it is found that having its source in pumping
Fixed valve ball is set in the fixed valve assembly of oil pump, it is currently used can draining oil well pump mainly realized in the form of aperture itself
Draining, there is no solve the problems, such as that oil well pump can draining from the root.
Summary of the invention
Pump barrel and top crude oil in oil pipe can not release completely when in order to overcome the shortcomings of existing pump detection and workover, this is practical
It is novel provide it is a kind of just setting double standing valve ball eccentric type can draining oil well pump, double standing valve ball eccentric type is just being set using this can draining
Oil well pump when pump detection and workover, after sucker rod and plunger rise, can open fixed valve ball by simply just suppressing operation,
Drain path is opened, leaks into crude oil in oil pipe completely in oil jacket space.
The technical solution of the utility model is: one kind just setting double standing valve ball eccentric type can draining oil well pump, including above connect
Head, top connection bottom connect pump barrel, and pump barrel bottom is connected with lower contact, and lower contact bottom is connected with fixed valve top connection, described
Fixed valve top connection bottom outside is connected with fixed valve outer cylinder, and fixed valve outer barrel is equipped with eccentric cylinder, the eccentric cylinder top
It is connected with standing valve cover, standing valve cover bottom is equipped with fixed valve ball；It is provided on the eccentric cylinder of the standing valve cover side longitudinal
Eccentric drain path, eccentric drain path inside transverse flow channels and eccentric cylinder by communicating, and eccentric drain path sealed bottom；
The eccentric cylinder bottom is sealed by silk plug, draining valve seat is equipped with inside eccentric cylinder, and gate gurgle valve seat is located at the upper of transverse flow channels
Portion, draining valve seat top are equipped with draining valve ball, and draining valve ball top is equipped with draining valve ball pressure cap, and draining valve ball pressure cap passes through pin
Nail is fixed on eccentric cylinder.
Side in the middle part of the eccentric cylinder is provided with fuel feed hole.
The utility model has the following beneficial effects: (1) draining effect is good, crude oil is not remained in pump, is solved from the root
The problem of crude oil can not release completely in oil pipe and pump barrel；(2) draining success rate is high, is opened by just suppressing mode to oil pipe
Bottom draining valve ball is pumped, compared to mechanical means such as shock, rotation, salvagings, is not influenced by viscosity of crude and wax deposition situation；(3) it seals
Effect is good, and setting for bivalve ball is realized by the precision-fit of valve ball and valve seat, need not add at pin with eccentric cylinder
Seal is encrypted, without considering the influence of underground Temperature-pressure Conditions and additional chemical agent to sealing；(4) it does not influence to suppress pump, well-flushing etc.
Oil pumping pump condition is verified, handles work；(5) purpose that cleaning tubing inner wall can be achieved, just suppressing high-temperature-hot-water will be former in oil pipe
Oil replacement flowline, tube inner wall are cleaned, and the water in oil pipe need to only be released by acting process；(6) it may be reused, only need
Pin is replaced, does not have to consider sealing problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of fixed valve assembly.
1- top connection in figure, the upper oil-release valve cover of 2-, 3- upper valve ball, 4- upper valve ball seat, 5- plunger, 6- pump barrel, 7- lower contact,
8- fixed valve top connection, 9- standing valve cover, 10- eccentric cylinder, 11- fixed valve ball, 12- fixed valve base, 13- pin, 14- gate gurgle valve
Ball pressure cap, 15- draining valve ball, 16- draining valve seat, 17- silk plug, 18- eccentric cylinder side wall technique is stifled, 19- eccentric cylinder bottom technique
It is stifled.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Fig. 1, Fig. 2, one kind just setting double standing valve ball eccentric type can draining oil well pump, including top connection 1, top connection
1 bottom connects pump barrel 6, is assembly for plunger inside pump barrel 6, is equipped with upper oil-release valve cover 2 inside assembly for plunger, in upper oil-release valve cover 2
Portion is equipped with upper valve ball 3, and 3 bottom of upper valve ball is equipped with upper valve ball seat 4, and upper valve ball seat 4 is connected on oil-release valve cover 2, it is described on
3 bottom of oil-release valve cover is connected with hollow plunger 5.6 bottom of pump barrel is connected with lower contact 7, and 7 bottom of lower contact is connected with fixed valve
Top connection 8,8 bottom outside of fixed valve top connection are connected with fixed valve outer cylinder 20, are equipped with bias inside fixed valve outer cylinder 20
Cylinder 10,10 top of eccentric cylinder are connected with standing valve cover 9, and 9 bottom of standing valve cover is equipped with fixed valve ball 11,11 bottom of fixed valve ball
Portion is fixed valve base 12, and fixed valve base 12 is pressed on the step of eccentric cylinder 10.In the standing valve cover 9 and fixed valve ball 11
The heart is eccentric relative to fixed valve top connection 8.Longitudinal eccentric drain path is provided on the eccentric cylinder 10 of 9 side of standing valve cover
A, the bottom eccentric drain path A is by stifled 19 sealing of eccentric cylinder bottom technique, and eccentric drain path A is by transverse flow channels B and partially
It is communicated inside heart cylinder 10, and the outside of transverse flow channels B passes through stifled 18 sealing of eccentric cylinder side wall technique.10 bottom of eccentric cylinder is logical
The sealing of silk plug 17 is crossed, has draining valve seat 16 inside eccentric cylinder 10, and draining valve seat 16 is located at the top of transverse flow channels B, gate gurgle valve
16 bottoms of seat are connected on silk plug 17, and by the step positioning on 10 inner wall of eccentric cylinder, 16 top of draining valve seat is equipped with and lets out on top
Oil valve ball 15,15 top of draining valve ball is equipped with draining valve ball pressure cap 14, and draining valve ball pressure cap 14 is fixed on partially by pin 13
On heart cylinder 10.The side at 10 middle part of eccentric cylinder is provided with fuel feed hole, and the draining valve ball pressure cap 14 is located at the lower section of fuel feed hole.
14 inner surface of draining valve ball pressure cap is provided with several big grooves, pin 13 cutting after, draining valve ball 15 to
Upper unlatching, crude oil successively passes through draining valve seat 16, draining valve ball 15, gate gurgle valve by the drain path in eccentric cylinder in pump barrel 6
14 internal groove of ball pressure cap, fuel feed hole are further connected to oil jacket space, realize complete draining.The pin 13 select rigidity it is strong,
The good material of brittleness, fixed draining valve ball pressure cap 14 realize tightly setting for draining valve ball 15, the energy when shearing force reaches requirement
Enough moment fractures, open draining valve ball 15.
The oil well pump operate normally when, fixed valve ball 11 it is normally-open with set；When needing pump detection and workover, sucker rod with
After assembly for plunger rises, by just suppressing oil pipe to certain pressure, cut pin 13, draining valve ball 15 is opened, gate gurgle valve
Ball 15 above mentions under the action of pressure difference with draining valve ball pressure cap 14, and crude oil successively passes through along eccentric cylinder drain path A in pump barrel 6
Interconnection B, draining valve seat 16, draining valve ball 15,14 internal groove of draining valve ball pressure cap, fuel feed hole, are further connected to oil jacket
Complete draining is realized in space.
Claims (2)
1. one kind just setting double standing valve ball eccentric type can draining oil well pump, including top connection (1), top connection (1) bottom connection pump
Cylinder (6), pump barrel (6) bottom are connected with lower contact (7), and lower contact (7) bottom is connected with fixed valve top connection (8), and feature exists
In: fixed valve top connection (8) bottom outside is connected with fixed valve outer cylinder (20), and bias is equipped with inside fixed valve outer cylinder (20)
Cylinder (10), eccentric cylinder (10) top are connected with standing valve cover (9), and standing valve cover (9) bottom is equipped with fixed valve ball (11)；Institute
It states and is provided with longitudinal eccentric drain path (A) on the eccentric cylinder (10) of standing valve cover (9) side, eccentric drain path (A) passes through
It is communicated inside transverse flow channels (B) and eccentric cylinder (10), and eccentric drain path (A) sealed bottom；Eccentric cylinder (10) bottom
It is sealed by silk plug (17), is equipped with draining valve seat (16) inside eccentric cylinder (10), and draining valve seat (16) is located at transverse flow channels (B)
Top, draining valve seat (16) top be equipped with draining valve ball (15), draining valve ball (15) top be equipped with draining valve ball pressure cap (14),
And draining valve ball pressure cap (14) is fixed on eccentric cylinder (10) by pin (13).
2. double standing valve ball eccentric type according to claim 1 of just setting can draining oil well pump, it is characterised in that: the bias
Side in the middle part of cylinder (10) is provided with fuel feed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682120.4U CN209011806U (en) | 2018-10-17 | 2018-10-17 | Upright double-fixed-valve-ball eccentric oil-drainage oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682120.4U CN209011806U (en) | 2018-10-17 | 2018-10-17 | Upright double-fixed-valve-ball eccentric oil-drainage oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209011806U true CN209011806U (en) | 2019-06-21 |
Family
ID=66838896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821682120.4U Expired - Fee Related CN209011806U (en) | 2018-10-17 | 2018-10-17 | Upright double-fixed-valve-ball eccentric oil-drainage oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209011806U (en) |
-
2018
- 2018-10-17 CN CN201821682120.4U patent/CN209011806U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190621 Termination date: 20211017 |