CN109340106A - A kind of anti-oil leakage device for screw pump oil production - Google Patents
A kind of anti-oil leakage device for screw pump oil production Download PDFInfo
- Publication number
- CN109340106A CN109340106A CN201811509996.3A CN201811509996A CN109340106A CN 109340106 A CN109340106 A CN 109340106A CN 201811509996 A CN201811509996 A CN 201811509996A CN 109340106 A CN109340106 A CN 109340106A
- Authority
- CN
- China
- Prior art keywords
- straight
- guide sleeve
- sphere
- screw pump
- leakage device
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000003921 oil Substances 0.000 claims description 56
- 238000012856 packing Methods 0.000 claims description 27
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C15/064—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
- F04C15/066—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention relates to exploitation technology fields, and in particular to a kind of anti-oil leakage device for screw pump oil production comprising: upper body has straight tube-like inner cavity；Lower body is three-port structure；Lower body, comprising: straight-through portion and side lead to portion；One end that side leads to portion is connected to straight-through portion；Upper body and straight-through portion are coaxially disposed；One end of upper body and one end of straight-through portion are connected by flange seal；Guide sleeve is embedded in upper body；Sphere is arranged in lower body, can lead in portion in straight-through portion and side and move；Side, which leads in portion, is provided with elastic component；One end top of elastic component is located on sphere, and the other end is limited in the predeterminated position that side leads to portion；After polished rod in guide sleeve falls off or is broken, for sphere under the action of elastic component, the port of guide sleeve can be blocked by being moved to straight-through portion.After the light rod-broken that can prevent screw pump using the present invention, oil liquid is flowed out by guide sleeve, and well head and well site is caused to pollute.
Description
Technical field
The present invention relates to exploitation technology field more particularly to a kind of anti-oil leakage devices for screw pump oil production.
Background technique
Currently, many oil fields are recovered the oil using screw pump artificial lifting way.When due to screw rod pump operation, polished rod rotation is generated
It swings, after long-time is worn, may cause light rod-broken, the de- polished rod that breaks is fallen into well, the guide pipe that oil liquid passes through polished rod
It is excessive, pollution well head and well site environment.
Summary of the invention
In view of this, the present invention provides a kind of anti-oil leakage device for screw pump oil production, main purpose is to prevent spiral shell
After the light rod-broken of bar pump, oil liquid is flowed out by guide sleeve, and well head and well site is caused to pollute.
In order to achieve the above objectives, present invention generally provides following technical solutions:
The embodiment of the present invention provides a kind of anti-oil leakage device for screw pump oil production, comprising: upper body, lower body,
Guide sleeve and sphere；
The upper body has straight tube-like inner cavity；
The lower body is three-port structure；The lower body includes: that straight-through portion and side lead to portion；The side lead to portion one end with
The straight-through portion connection；
The upper body and the straight-through portion are coaxially disposed；
One end of the upper body is connect with one end of the straight-through portion by flange seal；
The guide sleeve is embedded in the upper body, and one end of the guide sleeve extends in the straight-through portion, for giving
The polished rod of screw pump is oriented to；
The sphere is arranged in the lower body, can lead in portion in the straight-through portion and the side and move；The side
Elastic component is provided in logical portion；One end top of the elastic component is located on the sphere, and the other end is limited in the side
The predeterminated position in logical portion；In working condition, the sphere contacts the polished rod in screw pump under the action of the elastic component
On；After the polished rod in the guide sleeve falls off or is broken, the sphere is moved to described under the action of the elastic component
Straight-through portion can block the port of the guide sleeve.
Further, packing is provided in the inner cavity of the upper body, the packing is located at the top of the guide sleeve, with
Polished rod is connect with the bore seal of the upper body.
Further, the upper body includes: flange seat and cylinder body；
One end of the cylinder body is fixedly provided on the flange seat；The cylinder body and the flange seat are coaxially disposed；
Piston component is provided on the guide sleeve；The piston component is able to drive the guide sleeve in the cylinder body
It is slided in inner cavity；
The piston component is located at the lower section of the packing；
Sealed chamber is formed between the cylinder body, the flange seat and the piston component；
Channel is set on the cylinder body or the flange seat；The channel passes in and out the sealed chamber for oil liquid；
The sealed chamber injection oil liquid can push the piston component to move up.
Further, it is provided with injection hole on the cylinder body, for injecting lubricating oil to the packing.
Further, the upper end of the cylinder body is provided with gland, for the axial direction by the packing along the guide sleeve
It compresses.
Further, it is provided with hydraulic valve on the channel, for controlling the opening and closing in the channel.
Further, the side, which leads in portion, is provided with adjustment means；The adjustment means are for adjusting and limiting the bullet
The predeterminated position of power component.
Further, the internal diameter of the lower end of the guide sleeve is small compared with the outer diameter of the sphere；
The lower end of the guide sleeve extends in the straight-through portion, not less than the upper edge that the side leads to portion.
Further, the intracavity diameter of the straight-through portion on the upside of the logical portion in the side is big compared with the outer diameter of the sphere；
The intracavity diameter that the side leads to the straight-through portion of subordinate side is small compared with the outer diameter of the sphere；
The intracavity diameter that the side leads to portion is big compared with the outer diameter of the sphere.
Further, the adjustment means are wholely set with the elastic component；The adjustment means are connected through a screw thread
The side is arranged in lead in the inner cavity in portion；The adjustment means can lead to portion along the side and move axially.
By above-mentioned technical proposal, anti-oil leakage device of the present invention for screw pump oil production is at least had the advantage that
After the light rod-broken that can prevent screw pump, oil liquid is flowed out by guide sleeve, and well head and well site is caused to pollute.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the anti-oil leakage device for screw pump oil production provided in an embodiment of the present invention；
Fig. 2 is a kind of anti-oil leakage device for screw pump oil production provided in an embodiment of the present invention in sphere closure guide sleeve
Schematic diagram.
It is as shown in the figure:
1 is upper body, and 1-1 is cylinder body, and 1-2 is flange seat, and 2 be lower body, and 2-1 is straight-through portion, and 2-2 is that side leads to portion, and 3 are
Guide sleeve, 4 be sphere, and 5 be packing, and 6 be gland, and 6-1 is pressing sleeve, and 6-2 is outer cover, and 7 be injection hole, and 8 be hydraulic valve, and 9 are
Sealed chamber, 10 be piston component.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Specific embodiment, structure, feature and its effect applied according to the present invention is described in detail such as in attached drawing and preferred embodiment
Afterwards.In the following description, what different " embodiment " or " embodiment " referred to is not necessarily the same embodiment.In addition, one or more
Special characteristic, structure or feature in a embodiment can be combined by any suitable form.
As depicted in figs. 1 and 2, a kind of oil-leakage-prevention for screw pump oil production that one embodiment of the present of invention proposes fills
It sets, comprising: upper body 1, lower body 2, guide sleeve 3 and sphere 4；Upper body 1 has straight tube-like inner cavity, for accommodating guide sleeve 3；
The cross section of inner cavity is circle.Lower body 2 is three-port structure；Lower body 2 includes: that straight-through portion 2-1 and side lead to portion 2-2；Side leads to portion
One end of 2-2 is connected to straight-through portion 2-1；Upper body 1 and straight-through portion 2-1 are coaxially disposed；One end of upper body 1 and straight-through portion 2-1
One end pass through flange seal connect；So that guide sleeve 3 can be interspersed in the inner cavity of straight-through portion 2-1 and upper body 1.Guide sleeve
In 3 insertion upper bodies 1, one end of guide sleeve 3 is extended in straight-through portion 2-1, for the polished rod guiding to screw pump；Screw pump
Polished rod can pass through guide sleeve 3, carry out oil producing operation.It is tightly connected between guide sleeve 3 and upper body 1, piston structure can be passed through
Part 10 seals.Sphere 4 is arranged in lower body 2, can lead in portion 2-2 in straight-through portion 2-1 and side and move；Side, which leads in portion 2-2, to be set
It is equipped with elastic component；One end top of elastic component is located on sphere 4, and the other end is limited in the predeterminated position that side leads to portion 2-2；?
When working condition, i.e., when the polished rod of screw pump passes through guide sleeve 3, sphere 4 is contacted under the action of elastic component in screw pump
On polished rod；After the polished rod in guide sleeve 3 falls off or is broken, polished rod skids off downwards guide sleeve 3, work of the sphere 4 in elastic component
Under, the port of guide sleeve 3 can be blocked by being moved to straight-through portion 2-1, avoided crude oil and passed through the excessive pollution environment of guide sleeve 3.
As the preferred of above-described embodiment, packing 5 is provided in the inner cavity of upper body 1, packing 5 is located at the upper of guide sleeve 3
Side, polished rod is connect with the bore seal of upper body 1.Polished rod and the inner cavity of upper body 1 are sealed by packing 5, it is close
It is good to seal effect.
As the preferred of above-described embodiment, upper body 1 includes: flange seat 1-2 and cylinder body 1-1；One end of cylinder body 1-1 is fixed
Ground is arranged on flange seat 1-2；The preferred cylinder body 1-1 of the present embodiment and flange seat 1-2 integrated setting, connection are reliable；Certainly, cylinder
Body 1-1 can also be securely tightly connected with flange seat 1-2.Cylinder body 1-1 and flange seat 1-2 is coaxially disposed；The center flange seat 1-2
Opening diameter it is small compared with the internal diameter of cylinder body 1-1.Piston component 10 is provided on guide sleeve 3；Piston component 10 is interior with cylinder body 1-1's
Chamber sealed set.Piston component 10 is able to drive guide sleeve 3 and slides in the inner cavity of cylinder body 1-1；Piston component 10 is located at packing 5
Lower section；Sealed chamber 9 is formed between cylinder body 1-1, flange seat 1-2 and piston component 10；Sealed chamber 9 can accommodate oil liquid.
Channel is set on cylinder body 1-1 or flange seat 1-2；Channel passes in and out sealed chamber 9 for oil liquid；Sealed chamber 9 injects oil liquid can
Push piston component 10 to move up, and then guide sleeve 3 and packing 5 pushed to move up, can convenient and efficient replacement packing 5,
Replacement 5 labor intensity of packing is reduced, is improved work efficiency.
As the preferred of above-described embodiment, injection hole 7 is provided on cylinder body 1-1, for injecting lubricating oil to packing 5, with
Increase the sealing effect of packing 5.
As the preferred of above-described embodiment, the upper end of cylinder body 1-1 is provided with gland 6, is used for packing 5 along guide sleeve 3
Axial compression, to increase the sealing effect of packing 5.The preferred gland 6 of the present embodiment includes: pressing sleeve 6-1 and outer cover 6-2；Pressing sleeve
6-1 is circular ring shape, can be embedded in the inner cavity of cylinder body 1-1, is set on guide sleeve 3, right with the packing 5 that is wrapped on guide sleeve 3
It answers；Pressing sleeve 6-1 is squeezed by outer cover 6-2, can compress packing 5.It is provided with overflow valve on further preferred outer cover 6-2, to have
After oil liquid overflows packing 5, it can be flowed out by overflow valve.
As the preferred of above-described embodiment, hydraulic valve 8 is provided on channel, it, can be with for the opening and closing of control channel
It is connect with external oil liquid source, the oil liquid of high pressure is imported into sealed chamber 9, or the oil liquid of sealed chamber 9 is exported.This reality
It applies the preferred hydraulic valve 8 of example to connect with manual manual hydraulic device, manual hydraulic device is suppressed to sealed chamber 9, realizes piston
Component 10 moves up, and packing 5 is ejected cylinder body 1-1, is replaced to the packing 5 in cylinder body 1-1.
As the preferred of above-described embodiment, side, which leads in portion 2-2, is provided with adjustment means；Adjustment means are for adjusting and limiting
The predeterminated position of elastic component controls effect of the elastic component to sphere 4 by limiting the predeterminated position of elastic component.Into one
Preferably, adjustment means are wholely set step with elastic component；Adjustment means, which are connected through a screw thread, is arranged in the inner cavity that side leads to portion 2-2
In；Adjustment means can lead to portion 2-2 axial movement along side.Realize that adjustment means lead to portion 2-2 in side by rotation adjustment means
Interior movement can push elastic component to lead in portion 2-2 in side and move.
As the preferred of above-described embodiment, the internal diameter of the lower end of guide sleeve 3 is small compared with the outer diameter of sphere 4, so that sphere 4 is mobile
To the lower end of guide sleeve 3, the sealing to guide sleeve 3 can be realized under the effect of the pressure of oil liquid.Prolong the lower end of guide sleeve 3
It extends in straight-through portion 2-1, not less than the upper edge that side leads to portion 2-2, so that sphere 4 leads to after portion 2-2 enters straight-through portion 2-1 from side
The sealing to guide sleeve 3 can be fast implemented.When sphere 4 blocks 3 lower end of guide sleeve, straight-through portion 2-1 is pushed to by elastic component
Afterwards, sphere 4 can move up certain distance under the action of oil liquid, after sphere 4 moves up, in the effect of elastic component
Under, it can preferably block the end of guide sleeve 3.Elastic component can have upward elastic force to sphere 4.
As the preferred of above-described embodiment, side leads to outer diameter of the intracavity diameter compared with sphere 4 of the straight-through portion 2-1 on the upside of portion 2-2
Greatly, sphere 4 can be made to move down, realizes the sealing to guide sleeve 3.Side leads to the intracavity diameter of the straight-through portion 2-1 on the downside of portion 2-2
Outer diameter compared with sphere 4 is small, and sphere 4 is avoided to skid off downwards.The intracavity diameter that side leads to portion 2-2 is big compared with the outer diameter of sphere 4, so that sphere
4 can lead in portion 2-2 in side and slide.
As the preferred of above-described embodiment, sphere 4 is light material；The sealing of sphere 4 is small compared with the density of oil liquid, can float
It floats on oil liquid.The preferably materials such as Buddhist nun's human relations or resin can also be realized by hollow ball 4.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to
According to technical spirit any simple modification, equivalent change and modification to the above embodiments of the invention, this hair is still fallen within
In the range of bright technical solution.
Claims (10)
1. a kind of anti-oil leakage device for screw pump oil production characterized by comprising upper body, lower body, guide sleeve and ball
Body；
The upper body has straight tube-like inner cavity；
The lower body is three-port structure；The lower body includes: that straight-through portion and side lead to portion；The side lead to portion one end with it is described
Straight-through portion connection；
The upper body and the straight-through portion are coaxially disposed；
One end of the upper body is connect with one end of the straight-through portion by flange seal；
The guide sleeve is embedded in the upper body, and one end of the guide sleeve extends in the straight-through portion, for screw rod
The polished rod of pump is oriented to；
The sphere is arranged in the lower body, can lead in portion in the straight-through portion and the side and move；The side leads to portion
Inside it is provided with elastic component；One end top of the elastic component is located on the sphere, and the other end is limited in the side and leads to portion
Predeterminated position；In working condition, the sphere contacts on the polished rod of screw pump under the action of the elastic component；
After the polished rod in the guide sleeve falls off or is broken, the sphere is moved to described straight under the action of the elastic component
Logical portion can block the port of the guide sleeve.
2. the anti-oil leakage device according to claim 1 for screw pump oil production, which is characterized in that
Packing is provided in the inner cavity of the upper body, the packing is located at the top of the guide sleeve, by polished rod with it is described
The bore seal of upper body connects.
3. the anti-oil leakage device according to claim 2 for screw pump oil production, which is characterized in that
The upper body includes: flange seat and cylinder body；
One end of the cylinder body is fixedly provided on the flange seat；The cylinder body and the flange seat are coaxially disposed；
Piston component is provided on the guide sleeve；The piston component is able to drive the guide sleeve in the inner cavity of the cylinder body
Middle sliding；
The piston component is located at the lower section of the packing；
Sealed chamber is formed between the cylinder body, the flange seat and the piston component；
Channel is set on the cylinder body or the flange seat；The channel passes in and out the sealed chamber for oil liquid；
The sealed chamber injection oil liquid can push the piston component to move up.
4. the anti-oil leakage device according to claim 3 for screw pump oil production, which is characterized in that
It is provided with injection hole on the cylinder body, for injecting lubricating oil to the packing.
5. the anti-oil leakage device according to claim 4 for screw pump oil production, which is characterized in that
The upper end of the cylinder body is provided with gland, for the axial compression by the packing along the guide sleeve.
6. the anti-oil leakage device according to claim 5 for screw pump oil production, which is characterized in that
It is provided with hydraulic valve on the channel, for controlling the opening and closing in the channel.
7. the anti-oil leakage device according to claim 1 for screw pump oil production, which is characterized in that
The side, which leads in portion, is provided with adjustment means；The adjustment means are used to adjust and limit the default position of the elastic component
It sets.
8. the anti-oil leakage device according to claim 1 for screw pump oil production, which is characterized in that
The internal diameter of the lower end of the guide sleeve is small compared with the outer diameter of the sphere；
The lower end of the guide sleeve extends in the straight-through portion, not less than the upper edge that the side leads to portion.
9. the anti-oil leakage device according to claim 8 for screw pump oil production, which is characterized in that
The intracavity diameter that the side leads to the straight-through portion on the upside of portion is big compared with the outer diameter of the sphere；
The intracavity diameter that the side leads to the straight-through portion of subordinate side is small compared with the outer diameter of the sphere；
The intracavity diameter that the side leads to portion is big compared with the outer diameter of the sphere.
10. the anti-oil leakage device according to claim 7 for screw pump oil production, which is characterized in that
The adjustment means are wholely set with the elastic component；It is logical in the side that the adjustment means are connected through a screw thread setting
In the inner cavity in portion；The adjustment means can lead to portion along the side and move axially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509996.3A CN109340106A (en) | 2018-12-11 | 2018-12-11 | A kind of anti-oil leakage device for screw pump oil production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509996.3A CN109340106A (en) | 2018-12-11 | 2018-12-11 | A kind of anti-oil leakage device for screw pump oil production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340106A true CN109340106A (en) | 2019-02-15 |
Family
ID=65303848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811509996.3A Pending CN109340106A (en) | 2018-12-11 | 2018-12-11 | A kind of anti-oil leakage device for screw pump oil production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340106A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2084612C1 (en) * | 1993-05-26 | 1997-07-20 | Центральная научно-исследовательская лаборатория Производственного объединения "Оренбургнефть" | Well head shut-off valve |
| CN2611581Y (en) * | 2003-03-04 | 2004-04-14 | 中国石油天然气股份有限公司 | Guide sleeve of oil well polish rod |
| CN201915864U (en) * | 2010-11-02 | 2011-08-03 | 中国石油化工股份有限公司 | Automatic adjustment beam hanger for oil extractor |
| US20120085552A1 (en) * | 2010-10-12 | 2012-04-12 | Weatherford/Lamb, Inc. | Wellhead Rotating Breech Lock |
| CN202832400U (en) * | 2012-03-12 | 2013-03-27 | 中国石油化工股份有限公司 | Device capable of continuous pumping with break-off rod-pumped well polish rod |
| CN204532219U (en) * | 2015-04-23 | 2015-08-05 | 孙伟 | Self-pressure adjustable offset oil well head blowout prevention box |
| CN106150422A (en) * | 2016-08-24 | 2016-11-23 | 天津宝骏科技股份有限公司 | A kind of oil field pump sump well mouth sealing device |
| CN209145860U (en) * | 2018-12-11 | 2019-07-23 | 克拉玛依市尚正石油科技有限公司 | A kind of anti-oil leakage device for screw pump oil production |
-
2018
- 2018-12-11 CN CN201811509996.3A patent/CN109340106A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2084612C1 (en) * | 1993-05-26 | 1997-07-20 | Центральная научно-исследовательская лаборатория Производственного объединения "Оренбургнефть" | Well head shut-off valve |
| CN2611581Y (en) * | 2003-03-04 | 2004-04-14 | 中国石油天然气股份有限公司 | Guide sleeve of oil well polish rod |
| US20120085552A1 (en) * | 2010-10-12 | 2012-04-12 | Weatherford/Lamb, Inc. | Wellhead Rotating Breech Lock |
| CN201915864U (en) * | 2010-11-02 | 2011-08-03 | 中国石油化工股份有限公司 | Automatic adjustment beam hanger for oil extractor |
| CN202832400U (en) * | 2012-03-12 | 2013-03-27 | 中国石油化工股份有限公司 | Device capable of continuous pumping with break-off rod-pumped well polish rod |
| CN204532219U (en) * | 2015-04-23 | 2015-08-05 | 孙伟 | Self-pressure adjustable offset oil well head blowout prevention box |
| CN106150422A (en) * | 2016-08-24 | 2016-11-23 | 天津宝骏科技股份有限公司 | A kind of oil field pump sump well mouth sealing device |
| CN209145860U (en) * | 2018-12-11 | 2019-07-23 | 克拉玛依市尚正石油科技有限公司 | A kind of anti-oil leakage device for screw pump oil production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205001532U (en) | High -pressure wafer valve that surges of preventing leaking | |
| CN209145860U (en) | A kind of anti-oil leakage device for screw pump oil production | |
| CN205731848U (en) | A kind of ejector pin type glue dispensing valve | |
| CN109340106A (en) | A kind of anti-oil leakage device for screw pump oil production | |
| CN202417383U (en) | Wellhead blowout prevention sealing device | |
| CN201031791Y (en) | Equal-diameter strong start and stop oil-well pump | |
| CN110617211A (en) | Oil well pump and valve structure | |
| CN106838328A (en) | Self-tightening taper sealing component and application process | |
| CN203979418U (en) | A kind of reduction valve | |
| CN204827881U (en) | Long column stopper circulating pump | |
| CN201836429U (en) | Sleeve-type regulating valve | |
| CN209724846U (en) | A kind of low friction high-speed oil cylinder | |
| CN207229822U (en) | A kind of stop valve | |
| CN107387353B (en) | Ultrahigh pressure water pump | |
| CN107265332A (en) | A kind of secondary drawing jack and the application method of rising in double loop | |
| CN208764420U (en) | A kind of high pressure is surged throttle valve | |
| CN208546156U (en) | A kind of hydraulic control sliding sleeve | |
| CN107940076B (en) | Forced closing slurry switching valve | |
| CN202531142U (en) | Salvage-free adjustable water nozzle | |
| CN207261345U (en) | A kind of integrated hydraulic control cylinder | |
| CN207145818U (en) | A kind of pipeline on off mechanism | |
| CN217080973U (en) | Bidirectional hydraulic driving mechanism suitable for underground environment | |
| CN204371820U (en) | Without piston reciprocating oil hydraulic cylinder | |
| CN204402426U (en) | A kind of annular space hydraulic control security valve | |
| CN204371824U (en) | A kind of pressurized machine oil cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |