CN106593833A - Oil pumping device - Google Patents
Oil pumping device Download PDFInfo
- Publication number
- CN106593833A CN106593833A CN201611122706.0A CN201611122706A CN106593833A CN 106593833 A CN106593833 A CN 106593833A CN 201611122706 A CN201611122706 A CN 201611122706A CN 106593833 A CN106593833 A CN 106593833A
- Authority
- CN
- China
- Prior art keywords
- pump barrel
- plunger
- valve
- tapered portion
- buffer part
- 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.)
- Granted
Links
- 238000005086 pumping Methods 0.000 title abstract description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000007747 plating Methods 0.000 claims description 7
- 238000005524 ceramic coating Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 32
- 239000000919 ceramic Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 11
- 230000003139 buffering effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000010795 Steam Flooding Methods 0.000 description 4
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1002—Ball valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses an oil pumping device, comprising: an outer tube; a pump barrel fixed in the outer tube; the pump barrel is provided with a buffer mechanism which can buffer the elongation of the pump barrel when being heated; the plunger mechanism is positioned in the pump cylinder and can move up and down in the pump cylinder; the plunger mechanism comprises an upstream valve, a plunger and a downstream valve; the plunger is connected between the upstream valve and the downstream valve; the outer wall of the plunger is attached to the inner wall of the pump barrel; a fixed valve connected to a lower end of the outer tube, the fixed valve being open when the plunger mechanism is up-going and closed when the plunger is down-going.
Description
Technical field
The present invention relates to the thickened oil recovery lifting device used in a kind of oil field production, more particularly to a kind of oil rig.
Background technology
As the application that oil field development enters the Lifting Techniques such as middle and late stage, steam drive, horizontal well, SAGD will gradually increase
Plus, the Lifting Technique difficult problem such as bottom hole temperature (BHT) is high, lifting rate demand is big, corrosivity enhancing will become increasingly conspicuous.Opened with thick oil steam drive
As a example by adopting, downhole temperature can reach 300 DEG C or so, and formation fluid is entered after pit shaft, due to the change of pressure, correspondence water
Saturation temperature is reduced, and the sensible heat of part water becomes the latent heat of vapor, drastically vaporizes, and flash distillation and secondary flash occur, and is dodged twice
The gas of the oil well pump that steaming brings hits, gas lock phenomenon；And high temperature deformation, key components and partss working surface come off, peel strip comes
Holddown phenomenon can have a strong impact on lifting equipment.Again by taking SAGD as an example, bottom hole temperature (BHT) is up to 240 DEG C, and part well H2S contents reach
More than 1400ppm, as bottom hole temperature (BHT) is constantly raised, Korrosionsmedium is separated out in a large number, the aggravation of chemical attack phenomenon, working surface
Corrosion and fouling, can cause the wastage increase in lifting device work even to fail, the comprehensive function pair of these unfavorable factors
The impact of lifting equipment is very big.
At present, in sucker rod pump Lifting Technique, oil well pump adopts metal material, in recent years, domestic external-open substantially in selection
Send out and have developed ceramic pump lifting technology technology, its important composition part plunger and pump barrel adopt ceramic composite structures, but due to
There is the difference on the coefficient of expansion with ceramics in metal, and the connection between ceramic structure and metal structure mostly is and is directly connected to,
Such as it is threadedly coupled, so as to occur in that ceramic plunger causes fracture etc. with hardware dislocation, ceramic plunger shock metalwork
Phenomenon, the problems such as this just directly results in holddown, wastage and increases, has a strong impact on produced on-site.Therefore, it is necessary to develop one
New oil rig is planted, to meet the lifting demand of steam drive development middle and late stage, SAGD etc..
The content of the invention
In view of the deficiencies in the prior art, the present invention provides a kind of oil rig, can avoid producing mistake in piston structure
Position, improves structural stability, so as to meet the lifting demand of steam drive development middle and late stage, SAGD etc..
To reach above-mentioned purpose, the present invention is employed the following technical solutions：
A kind of oil rig, including：
Outer tube；
The pump barrel being fixed in the outer tube；The pump barrel is provided with buffer gear, and the buffer gear can buffer institute
State elongation when pump barrel is heated；
Plunger mechanism in the pump barrel, it can be moved up and down in pump barrel；The plunger mechanism includes upper travelling
Valve, plunger, lower travelling valve；The plunger is connected between the upward-traveling valves and the lower travelling valve；The outer wall of the plunger
Fit with the inwall of the pump barrel；
The standing valve of the outer tube lower end is connected to, the standing valve is opened and described when the plunger mechanism is up
Close when plunger is descending.
Used as a kind of preferred embodiment, the plunger is provided with anticorrosion portion；The anticorrosion portion is arranged at the post
On the surface of plug, to prevent the plunger from corroding.
Used as a kind of preferred embodiment, the pump barrel is provided with anticorrosion portion；The anticorrosion portion is arranged at the pump
On the surface of cylinder, to prevent the pump barrel from corroding.
Used as a kind of preferred embodiment, the anticorrosion portion plating is located on the lateral wall on the surface.
Used as a kind of preferred embodiment, the anticorrosion portion includes that plating sets Al on said surface203Base ceramics are applied
Layer.
As a kind of preferred embodiment, the Al203The thickness of base ceramic coating is 0.2 to 0.3 millimeter.
It is aluminium alloy as the material of a kind of preferred embodiment, the plunger and the pump barrel.
Used as a kind of preferred embodiment, the hardness of the plunger is 900 ± 20Hv；The hardness in the anticorrosion portion is
900Hv to 1800Hv.
Used as a kind of preferred embodiment, the hardness of the pump barrel is 1000 ± 20Hv；The hardness in the anticorrosion portion
For 900Hv to 1800Hv.
Used as a kind of preferred embodiment, the upper end of the plunger mechanism is connected with disconnection mechanism；The disconnection mechanism
Including disconnection pawl, guide sleeves, guiding tube, core bar, retaining ring, the first spring, axle sleeve, reducer union；
The disconnection pawl is connected with helmet；The guide sleeves are threadedly connected to the upper end of the guiding tube, the guiding tube
Lower end be threadedly coupled the retaining ring；The guide sleeves, the guiding tube and retaining ring connection rear enclosure is located at described
On core bar, the axle sleeve is arranged outside the core bar and positioned at the lower section of the retaining ring, and first spring housing is located at the core
Outside bar and between the axle sleeve and the core bar；The reducer union is connected to the lower end of the core bar；First bullet
Retaining ring described in the upper end contact of spring, reducer union described in the contact of lower end.
Used as a kind of preferred embodiment, the upward-traveling valves include upper delivery connection, upward-traveling valves ball, upward-traveling valves
Seat；The upward-traveling valves seat is fixedly installed in the upper delivery connection；The upward-traveling valves ball is located in the upper delivery connection
And be seated on the upward-traveling valves seat；The upper end of the upper delivery connection connects the reducer union；
The upper end of the plunger is connected with plunger connector；The plunger connector connects the lower end of the upper delivery connection；
The lower travelling valve includes travelling valve bonnet joint, travelling valve bonnet, lower travelling valve ball, lower travelling valve seat；It is described travelling
Valve bonnet joint connects the lower end of the plunger, and the travelling valve bonnet is connected to the lower end of the travelling valve bonnet joint；The downstream
Dynamic valve seat is fixedly installed in the travelling valve bonnet；The lower travelling valve ball be located at the travelling valve bonnet in and be seated at it is described under
In travelling valve seat；The lower end of the travelling valve bonnet is connected with plunger lower contact.
Used as a kind of preferred embodiment, the plunger includes the connected plunger tube of multiple endings.
As a kind of preferred embodiment, helmet that the outer tube includes being sequentially connected, releasing coupling, the first body,
Tubing coupling, the second body, pump barrel lower contact, support tube；The upper end of the pump barrel is connected with regulation ring；The regulation ring passes through
Adjust joint and connect second body；The inwall of the pump barrel lower contact is provided with the 3rd limited step；The lower end of the pump barrel
It is against on the 3rd limited step.
Used as a kind of preferred embodiment, the pump barrel includes upper pump barrel and lower pump barrel；The buffer gear includes setting
The first buffer part for being placed in the lower end of the upper pump barrel and the second buffer part of the upper end for being arranged at the lower pump barrel；It is described
First buffer part and second buffer part match locking with the elongation for buffering the upper pump barrel and when lower pump barrel is heated.
Used as a kind of preferred embodiment, first buffer part is arranged at the lateral wall of the upper pump barrel；Described
Two buffer parts are arranged at the medial wall of the lower pump barrel.
Used as a kind of preferred embodiment, first buffer part includes the first tapered portion and positioned at the first taper
First limited step of portion upper end；Second buffer part includes the second tapered portion and positioned at the of the second tapered portion upper end
Two limited steps；First tapered portion stretches into second tapered portion and locking of fitting with second tapered portion；Described
Gap, the upper end of second tapered portion and the described first limit are provided between the lower end of one tapered portion and second limited step
Gap is provided between the step of position.
Used as a kind of preferred embodiment, the external diameter of the upper pump barrel gradually subtracts downwards in first tapered portion
It is little；The internal diameter of the lower pump barrel gradually increases upwards in second tapered portion.
Used as a kind of preferred embodiment, the buffer gear includes the 3rd buffering of the upper end for being arranged at the pump barrel
Portion and be arranged at the regulation ring lower end the 4th buffer part；The regulation joint pushes the regulation ring so that described
3rd buffer part and the 4th buffer part match locking, so as to buffer the elongation when pump barrel is heated.
Used as a kind of preferred embodiment, the pump barrel is structure as a whole.
Used as a kind of preferred embodiment, the standing valve includes standing valve top connection, spring base, second spring, valve
Body, push rod, valve pocket, fixed valve ball, fixed valve base, standing valve lower contact；
The upper end of the standing valve top connection connects the lower end of the support tube；The lower end connection of the standing valve top connection
The valve body；The spring base is sheathed on outside the push rod and in the standing valve top connection with the second spring；Institute
State valve pocket, the fixed valve ball and the fixed valve base to be located in the valve body；Work of the push rod in the second spring
The fixed valve ball is pushed with；The standing valve lower contact connects the lower end of the valve body.
By above technical scheme, the oil rig of the present invention by being provided with buffer gear in pump barrel, by buffer gear
Elongation buffering after pump barrel expanded by heating is fallen, it is to avoid structure dislocation occur, so that pump barrel is more stable in outer tube.Together
When, when the coefficient of expansion of pump barrel and outer tube is distinct, buffer gear can make connection of the pump barrel in outer tube more stable,
The situation of the extruding ceramic member rupture caused because of coefficient of expansion difference so as to existing conventional ceramic pump will not be produced to be directly connected to.
With reference to explanation hereinafter and accompanying drawing, only certain exemplary embodiments of this invention is disclose in detail, specify the original of the present invention
Reason can be in adopted mode.It should be understood that embodiments of the present invention are not so limited in scope.In appended power
In the range of the spirit and terms that profit is required, embodiments of the present invention include many changes, modifications and equivalent.
The feature for describing for a kind of embodiment and/or illustrating can be in same or similar mode one or more
It is combined with the feature in other embodiment used in individual other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but and
It is not excluded for the presence of one or more further features, one integral piece, step or component or additional.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those skilled in the art, without having to pay creative labor, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the oil rig structural representation that one embodiment of the present invention is provided；
Fig. 2 is the upper part-structure schematic diagram of oil rig shown in Fig. 1；
Fig. 3 is the mid portion structural representation of oil rig shown in Fig. 1；
Fig. 4 is the lower part-structure schematic diagram of oil rig shown in Fig. 1.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described enforcement
Example is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained on the premise of creative work is not made, should all belong to guarantor of the present invention
The scope of shield.
It should be noted that when element is referred to as " being arranged at " another element, it can directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field for belonging to the present invention
The implication that technical staff is generally understood that is identical.The term for being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that of the invention in limiting.Term as used herein "and/or" includes one or more
The arbitrary and all of combination of related Listed Items.
Fig. 1 to Fig. 4 is referred to, a kind of structural representation of the oil rig provided for one embodiment of the present invention.
In present embodiment, the oil rig includes：Outer tube；The pump barrel being fixed in the outer tube；The pump barrel is provided with buffer
Structure 100, the buffer gear 100 can buffer the elongation when pump barrel is heated；Plunger mechanism in the pump barrel,
It can be moved up and down in pump barrel；The plunger mechanism includes upward-traveling valves, plunger 20, lower travelling valve；The plunger 20 connects
Between the upward-traveling valves and the lower travelling valve；The outer wall of the plunger 20 is fitted with the inwall of the pump barrel；It is connected to
The standing valve of the outer tube lower end, the standing valve is opened when the plunger mechanism is up and closed when the plunger 20 is descending
Close.
By above technical scheme, the oil rig of present embodiment by being provided with buffer gear 100 in pump barrel, by slow
Punch mechanism 100 by after pump barrel expanded by heating elongation buffering fall, it is to avoid occur structure dislocation so that pump barrel in outer tube more
Plus it is stable.Meanwhile, when the coefficient of expansion of pump barrel and outer tube is distinct, buffer gear 100 can make pump barrel in outer tube
Connect more stable, the extruding ceramic member caused because of coefficient of expansion difference so as to existing conventional ceramic pump will not be produced to be directly connected to
The situation of rupture.
In the present embodiment, the upper end of the plunger mechanism is connected with disconnection mechanism；The disconnection mechanism includes disconnecting
Pawl 3, guide sleeves 5, guiding tube 4, core bar 7, retaining ring 8, the first spring 9, axle sleeve 10, reducer union 11.
The disconnection pawl 3 is connected with helmet 1；The guide sleeves 5 are threadedly connected to the upper end of the guiding tube 4, described to draw
The lower end of conduit 4 is threadedly coupled the retaining ring 8；After the guide sleeves 5, the guiding tube 4 and the retaining ring 8 connect
It is sheathed on the core bar 7, the axle sleeve 10 is arranged outside the core bar 7 and positioned at the lower section of the retaining ring 8, first bullet
Spring 9 is sheathed on outside the core bar 7 and between the axle sleeve 10 and the core bar 7；The reducer union 11 is connected to described
The lower end of core bar 7；Retaining ring 8 described in the upper end contact of first spring 9, reducer union 11 described in the contact of lower end.First bullet
Spring 9 is pressed between retaining ring 8 and reducer union 11.
Wherein, disconnection mechanism can be connected between sucker rod and plunger mechanism.In the present embodiment, using disconnection machine
Structure connecting with pumping rod and plunger mechanism are because that the external diameter of normal conditions lower plunger 20 exceedes the internal diameter of connected pipes, it is impossible to directly from
Enter under well head.Arranging disconnection mechanism is easy to plunger 20 to go into the well.
In the present embodiment, the upward-traveling valves include upper delivery connection 12, upward-traveling valves ball 14, upward-traveling valves seat
15；The upward-traveling valves seat 15 is fixedly installed in the upper delivery connection 12；The upward-traveling valves ball 14 is located at described fuel-displaced
Joint 12 is interior and is seated on the upward-traveling valves seat 15；The upper end of the upper delivery connection 12 connects the reducer union 11.
The upper end of the plunger 20 is connected with plunger connector 16；The plunger connector 16 connects the lower end of the upper delivery connection 12.
The lower travelling valve includes travelling valve bonnet joint 25, travelling valve bonnet 26, lower travelling valve ball 27, lower travelling valve seat 28；
The travelling valve bonnet joint 25 connects the lower end of the plunger 20, and the travelling valve bonnet 26 is connected to the travelling valve bonnet joint 25
Lower end；The lower travelling valve seat 28 is fixedly installed in the travelling valve bonnet 26；The lower travelling valve ball 27 is located at the trip
Dynamic valve bonnet 26 is interior and is seated on the lower travelling valve seat 28；The lower end of the travelling valve bonnet 26 is connected with plunger lower contact 29.
Wherein, plunger 20 is referred to as plunger tube, and the plunger 20 can include the connected plunger tube of multiple endings.
In the present embodiment, the plunger 20 can be provided with anticorrosion portion.The anticorrosion portion is arranged at the plunger
On 20 surface, to prevent the plunger 20 from corroding.Meanwhile, the pump barrel is provided with anticorrosion portion；The anticorrosion portion is arranged at
On the surface of the pump barrel, to prevent the pump barrel from corroding.
The anticorrosion portion plating sets on said surface.Such as, can be processed in the form of electroplating surface ceramics.Preferably
, the medial wall plating of the lateral wall of plunger 20 and pump barrel is provided with anticorrosion portion.The inwall (medial wall) of plunger 20 and pump barrel
Outer wall (lateral wall) the corrosion portion that sets up defences can be plated.
The anticorrosion portion includes that plating sets Al on said surface203Base ceramic coating (hard Al-based coating).So set
Put, the pump barrel of the oil rig of present embodiment, plunger 20 can be caused not only corrosion-resistant and wear-resistant and in high temperature
Under be unlikely to deform so that the oil rig of present embodiment can under high temperature well not holddown, do not miss, it is corrosion-resistant and do not tie
Dirt, so as to effectively extend the service life and pump efficiency of device, meets sucker rod pump lifting under thickened oil recovery hot environment
Job requirement.Further, the Al203The thickness of base ceramic coating is 0.2 to 0.3 millimeter.
Material for lift structure intensity, the plunger 20 and the pump barrel can be aluminium alloy.It is arranged such, is difficult to produce
The existing lifting device of life adopts the problem of the easy fragmentation of ceramic member.Specifically, the hardness of the plunger 20 is 900 ± 20Hv；It is described
The hardness in anticorrosion portion is 900Hv to 1800Hv.The hardness of the pump barrel is 1000 ± 20Hv；The hardness in the anticorrosion portion is
900Hv to 1800Hv.
The outer tube includes helmet 1, releasing coupling 2, the first body 4, tubing coupling 13, the second body being sequentially connected
19th, pump barrel lower contact 23, support tube 24；The upper end of the pump barrel is connected with regulation ring 18；The regulation ring 18 is connect by regulation
17 connections second body 19；The inwall of the pump barrel lower contact 23 is provided with the 3rd limited step 231；Under the pump barrel
End is against on the 3rd limited step 231.
In the present embodiment, buffer gear 100 is referred to as self-locking mechanism.Buffer gear 100 can be arranged at pump
The connecting portion of cylinder.When pump barrel receives thermal stretching, the cushion space of pump barrel elongation can be provided in the connecting portion of pump barrel.Should
Connecting portion can connect other assemblies or partial connecting portion for pump barrel, or the connecting portion of pump barrel therein
Position.Certainly, when pump barrel does not receive thermal stretching, the connecting portion of pump barrel can provide rigid support, it is to avoid connection is loosely.
In one embodiment, pump barrel can be constructed for split, connect to be formed by multistage, consequently facilitating manufacture.It is described
Pump barrel 21 includes upper pump barrel 21 and lower pump barrel 22.The buffer gear 100 includes being arranged at the of the lower end of the upper pump barrel 21
One buffer part and be arranged at the lower pump barrel 22 upper end the second buffer part；First buffer part is slow with described second
The portion of punching matches locking with the elongation for buffering the upper pump barrel 21 and when lower pump barrel 22 is heated.
Wherein, one of the first buffer part and the second buffer part can be arranged on lateral wall, another to be arranged on medial wall.
One of first buffer part and the second buffer part can be stretched into partly in another, and are brought into close contact.Specifically, as shown in figure 1, institute
State the lateral wall that the first buffer part is arranged at the upper pump barrel 21；Second buffer part is arranged at the inner side of the lower pump barrel 22
Wall.
As shown in figure 3, first buffer part includes the first tapered portion 102 and positioned at the upper end of the first tapered portion 102
First limited step 101.Second buffer part includes the second tapered portion 103 and positioned at the of the upper end of the second tapered portion 103
Two limited steps 104.Wherein, the external diameter of the upper pump barrel 21 is gradually reduced downwards in first tapered portion 102；Under described
The internal diameter of pump barrel 22 gradually increases upwards in second tapered portion 103.
First tapered portion 102 stretches into second tapered portion 103 and locking of fitting with second tapered portion 103.
Gap is provided between the lower end of first tapered portion 102 and second limited step 104, second tapered portion 103
Gap is provided between upper end and first limited step 101.
As shown in figure 3, the first tapered portion 102 with the second tapered portion 103 when such as figure position is fitted, the first tapered portion 102
Cannot continue to stretch in the second tapered portion 103 so that the two is clamped on such as figure position so that under first tapered portion 102
Hold and there is gap and second limited step 104 between, and the upper end of second tapered portion 103 is spacing with described first
There is gap between step 101.
In interstitial site, the first tapered portion 102 and the second tapered portion 103 leave the conical surface, so as to upper pump barrel 21 and under
When pump barrel 22 receives thermal stretching, upper pump barrel 21 can be easy to elongation downwards under the effect of the conical surface of interstitial site, lower pump barrel 22
It is easy to protrude upward under the conical surface effect of gap position, and then the elongation buffering of the two is fallen.Meanwhile, upper pump barrel 21 and lower pump barrel
After 22 further extend, the first tapered portion 102 and the second tapered portion 103 are further locked, and are more securely connected so as to provide
Construction, the stability of further reinforcement structure.
In another embodiment, the buffer gear 100 can also include being arranged at the upper end of the pump barrel 21
3rd buffer part and be arranged at the regulation ring 18 lower end the 4th buffer part.The regulation joint 17 pushes the tune
Section ring 18 locking so that the 3rd buffer part and the 4th buffer part match, so as to buffer when the pump barrel 21 is heated
Elongation.Wherein, adjusting between joint 17 and the second body 19 can be be threadedly coupled, can be by by rotating regulation joint 17
Pump barrel 21 is pressed between the limited step of regulation ring 18 and the 3rd.
Wherein, the 3rd buffer part may be referred to the first buffer part and the second buffering with the structure and function of the 4th buffer part
The structure and function in portion, no longer repeats one by one in present embodiment.
In the present embodiment, buffer gear 100 is arranged at the connecting portion of pump barrel 21 and miscellaneous part (regulation ring 18),
Therefore the therein of pump barrel 21 can arrange buffer gear 100, so in the present embodiment pump barrel 21 can be one
Body structure.
In the present embodiment, using the standing valve of strong on-off structure, by the way that water can be successfully managed using the standing valve
The fixed valve ball 36 occurred in horizontal well and thickened oil recovery cannot resilience problem.Specifically, the standing valve can include standing valve
Top connection 30, spring base 31, second spring 32, valve body 33, push rod 34, valve pocket 35, fixed valve ball 36, fixed valve base 37, fixation
Valve lower contact 38.
Wherein, the upper end of the standing valve top connection 30 connects the lower end of the support tube 24；The standing valve top connection
30 lower end connects the valve body 33；The spring base 31 is sheathed on outside the push rod 34 and positioned at institute with the second spring 32
State in standing valve top connection 30；The valve pocket 35, the fixed valve ball 36 and the fixed valve base 37 are located at the valve body 33
It is interior；The push rod 34 pushes the fixed valve ball 36 in the presence of the second spring 32；The standing valve lower contact 38 connects
Connect the lower end of the valve body 33.Wherein, the standing valve lower contact 38 can be connected with helmet 39.
The course of work of the oil rig that present embodiment is provided is described in detail with reference to Fig. 1, preferably to explain
Address the understanding present invention.
Under enter before, helmet 1 is removed on releasing coupling 2, untie being threadedly coupled for disconnection pawl 3 and helmet 1.By oil pumping dress
Put and be connected with oil pipe, in being lowered into oil reservoir.Then, after disconnection pawl 3 is connected with sucker rod, under enter in oil pipe, until disconnection pawl 3
Contact with core bar 7.Continue to transfer, disconnection pawl 3 catches the groove of core bar 7 in the presence of retaining ring 8, so as to complete sucker rod
With the connection work of plunger mechanism.
During upstroke, plunger 20 is above carried, space becomes big between lower travelling valve and standing valve, and pressure reduces, fixed
Valve is opened, and crude oil is entered in oil rig.During down stroke, space diminishes between lower travelling valve and standing valve, and pressure increases
Plus, force travelling valve to be opened, so that oil is entered in oil pipe, operation is repeated to complete the exploitation to oil reservoir.
When terminating exploitation, sucker rod is lifted outside well, drive and moved in plunger mechanism.When guide sleeves 5 are contacted with releasing coupling 2
When, because the external diameter of guide sleeves 5 is more than the internal diameter of releasing coupling 2, carrying in continuation will be such that disconnection pawl 3 separates with core bar 7, can use afterwards
Go out sucker rod, oil rig body (miscellaneous part) takes out with oil pipe.
Herein cited any digital value all include between lower limit to higher limit with the lower value of an incremented and
The all values of upper value, the interval that there are at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the value of the quantity or process variable (such as temperature, pressure, time etc.) of a part is from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then such as 15 to 85,22 are also clearly listed during purpose is to illustrate the description and is arrived
68th, 43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the description in a similar manner.
Unless otherwise stated, all scopes all include all numerals between end points and end points.It is used together with scope
" about " or " approximate " be suitable for two end points of the scope.Thus, " about 20 to 30 " are intended to cover that " about 20 to about
30 ", at least including the end points for indicating.
The all articles for disclosing and reference material, including patent application and publication, for various purposes by quoting knot
Together in this.The term " substantially by ... constitute " of description combination should include determined by element, composition, part or step and reality
Other elements, composition, part or the step of the basic novel feature of the combination are not affected in matter.Using term "comprising" or
" including " is describing the combination of element here, composition, part or step it is also contemplated that basic by these elements, composition, part
Or the embodiment that step is constituted.Here by using term " can with ", it is intended to which illustrate that " can with " include is described any
Attribute is all optional.
Multiple element, composition, part or step can be provided by single integrated component, composition, part or step.Alternative
Ground, single integrated component, composition, part or step can be divided into detached multiple element, composition, part or step.It is used for
The open "a" or "an" of description element, composition, part or step is not said to exclude other elements, composition, part
Or step.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouching
State, many embodiments and many applications outside the example for being provided all will be for a person skilled in the art aobvious and easy
See.Therefore, the scope of this teaching should not determine with reference to foregoing description, but should with reference to claims and this
The four corner of the equivalent that a little claim are possessed is determining.It is for comprehensive purpose, all articles and special with reference to including
The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in aforementioned claim
Any aspect is not intended to abandon the body matter, also should not be considered as inventor the theme is not thought of as it is disclosed
A part for subject matter.
Claims (20)
1. a kind of oil rig, it is characterised in that include：
Outer tube；
The pump barrel being fixed in the outer tube；The pump barrel is provided with buffer gear, and the buffer gear can buffer the pump
Elongation when cylinder is heated；
Plunger mechanism in the pump barrel, it can be moved up and down in pump barrel；The plunger mechanism includes upward-traveling valves, post
Plug, lower travelling valve；The plunger is connected between the upward-traveling valves and the lower travelling valve；The outer wall of the plunger with it is described
The inwall laminating of pump barrel；
The standing valve of the outer tube lower end is connected to, the standing valve is opened and in the plunger when the plunger mechanism is up
Close when descending.
2. oil rig as claimed in claim 1, it is characterised in that：The plunger is provided with anticorrosion portion；The anticorrosion portion
It is arranged on the surface of the plunger, to prevent the plunger from corroding.
3. oil rig as claimed in claim 1, it is characterised in that：The pump barrel is provided with anticorrosion portion；The anticorrosion portion
It is arranged on the surface of the pump barrel, to prevent the pump barrel from corroding.
4. oil rig as claimed in claim 2 or claim 3, it is characterised in that：The anticorrosion portion plating sets on said surface.
5. oil rig as claimed in claim 4, it is characterised in that：The anticorrosion portion includes that plating sets on said surface
Al203Base ceramic coating.
6. oil rig as claimed in claim 5, it is characterised in that：The Al203The thickness of base ceramic coating is 0.2 to 0.3
Millimeter.
7. the oil rig as described in claim 5 or 6, it is characterised in that：The material of the plunger and the pump barrel is aluminum conjunction
Gold.
8. the oil rig as described in Claims 2 or 3 is arbitrary, it is characterised in that：The hardness of the plunger is 900 ± 20Hv；
The hardness in the anticorrosion portion is 900Hv to 1800Hv.
9. the oil rig as described in Claims 2 or 3 is arbitrary, it is characterised in that：The hardness of the pump barrel is 1000 ± 20Hv；
The hardness in the anticorrosion portion is 900Hv to 1800Hv.
10. oil rig as claimed in claim 1, it is characterised in that：The upper end of the plunger mechanism is connected with disconnection mechanism；
The disconnection mechanism includes disconnection pawl, guide sleeves, guiding tube, core bar, retaining ring, the first spring, axle sleeve, reducer union；
The disconnection pawl is connected with helmet；The guide sleeves are threadedly connected to the upper end of the guiding tube, under the guiding tube
The end threaded connection retaining ring；The guide sleeves, the guiding tube and retaining ring connection rear enclosure is located at the core bar
On, the axle sleeve is arranged outside the core bar and positioned at the lower section of the retaining ring, first spring housing is outside the core bar
And between the axle sleeve and the core bar；The reducer union is connected to the lower end of the core bar；First spring
Retaining ring described in the contact of upper end, reducer union described in the contact of lower end.
11. oil rigs as claimed in claim 10, it is characterised in that：The upward-traveling valves include upper delivery connection, upstream
Dynamic valve ball, upward-traveling valves seat；The upward-traveling valves seat is fixedly installed in the upper delivery connection；The upward-traveling valves ball is located at institute
State in delivery connection and be seated on the upward-traveling valves seat；The upper end of the upper delivery connection connects the reducer union；
The upper end of the plunger is connected with plunger connector；The plunger connector connects the lower end of the upper delivery connection；
The lower travelling valve includes travelling valve bonnet joint, travelling valve bonnet, lower travelling valve ball, lower travelling valve seat；The travelling valve bonnet
Joint connects the lower end of the plunger, and the travelling valve bonnet is connected to the lower end of the travelling valve bonnet joint；The lower travelling valve
Seat is fixedly installed in the travelling valve bonnet；The lower travelling valve ball is located in the travelling valve bonnet and is seated at described lower travelling
On valve seat；The lower end of the travelling valve bonnet is connected with plunger lower contact.
12. oil rigs as claimed in claim 11, it is characterised in that：The plunger includes the connected plunger of multiple endings
Pipe.
13. oil rigs as described in claim 11 or 12, it is characterised in that：The outer tube include be sequentially connected helmet,
Releasing coupling, the first body, tubing coupling, the second body, pump barrel lower contact, support tube；The upper end of the pump barrel is connected with tune
Section ring；The regulation ring connects second body by adjusting joint；It is spacing that the inwall of the pump barrel lower contact is provided with the 3rd
Step；The lower end of the pump barrel is against on the 3rd limited step.
14. oil rigs as described in claim 1 or 10 or 11, it is characterised in that：The pump barrel includes upper pump barrel and lower pump
Cylinder；The buffer gear includes the first buffer part of the lower end for being arranged at the upper pump barrel and is arranged at the lower pump barrel
Second buffer part of upper end；First buffer part and second buffer part match locking with buffer the upper pump barrel and under
Elongation when pump barrel is heated.
15. oil rigs as claimed in claim 14, it is characterised in that：First buffer part is arranged at the upper pump barrel
Lateral wall；Second buffer part is arranged at the medial wall of the lower pump barrel.
16. oil rigs as claimed in claim 15, it is characterised in that：First buffer part include the first tapered portion, with
And positioned at the first limited step of the first tapered portion upper end；Second buffer part includes the second tapered portion and positioned at second
Second limited step of tapered portion upper end；First tapered portion stretches into second tapered portion and pastes with second tapered portion
Close locking；Be provided with gap between the lower end of first tapered portion and second limited step, second tapered portion it is upper
Gap is provided between end and first limited step.
17. oil rigs as claimed in claim 16, it is characterised in that：The external diameter of the upper pump barrel is in first tapered portion
On be gradually reduced downwards；The internal diameter of the lower pump barrel gradually increases upwards in second tapered portion.
18. oil rigs as claimed in claim 13, it is characterised in that：The buffer gear includes being arranged at the pump barrel
3rd buffer part of upper end and be arranged at the regulation ring lower end the 4th buffer part；The regulation joint pushes described
Regulation ring locking so that the 3rd buffer part and the 4th buffer part match, so as to buffer the stretching when pump barrel is heated
Long amount.
19. oil rigs as claimed in claim 18, it is characterised in that：The pump barrel is structure as a whole.
20. oil rigs as claimed in claim 13, it is characterised in that：The standing valve includes standing valve top connection, spring
Seat, second spring, valve body, push rod, valve pocket, fixed valve ball, fixed valve base, standing valve lower contact；
The upper end of the standing valve top connection connects the lower end of the support tube；The lower end connection of the standing valve top connection is described
Valve body；The spring base is sheathed on outside the push rod and in the standing valve top connection with the second spring；The valve
Set, the fixed valve ball and the fixed valve base are located in the valve body；The push rod is in the presence of the second spring
Push the fixed valve ball；The standing valve lower contact connects the lower end of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122706.0A CN106593833B (en) | 2016-12-08 | 2016-12-08 | Oil pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122706.0A CN106593833B (en) | 2016-12-08 | 2016-12-08 | Oil pumping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593833A true CN106593833A (en) | 2017-04-26 |
| CN106593833B CN106593833B (en) | 2018-04-06 |
Family
ID=58597527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611122706.0A Active CN106593833B (en) | 2016-12-08 | 2016-12-08 | Oil pumping device |
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| Country | Link |
|---|---|
| CN (1) | CN106593833B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852844A (en) * | 2019-04-30 | 2020-10-30 | 中国石油天然气股份有限公司 | Flexible metal oil well pump device in horizontal well and resetting device of fixed valve ball |
| CN113374678A (en) * | 2020-02-25 | 2021-09-10 | 中国石油天然气股份有限公司 | Forced reset wear-resistant, corrosion-resistant and sulfur-resistant oil well pump |
| CN114427354A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Ultra-deep oil and gas well supporting tube and manufacturing method thereof |
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| CN104929928A (en) * | 2015-06-01 | 2015-09-23 | 中国科学院力学研究所 | Oil well pump and manufacturing method thereof |
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| US4133516A (en) * | 1976-10-22 | 1979-01-09 | Christensen, Inc. | Shock absorber for well drilling pipe |
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| CN111852844A (en) * | 2019-04-30 | 2020-10-30 | 中国石油天然气股份有限公司 | Flexible metal oil well pump device in horizontal well and resetting device of fixed valve ball |
| CN113374678A (en) * | 2020-02-25 | 2021-09-10 | 中国石油天然气股份有限公司 | Forced reset wear-resistant, corrosion-resistant and sulfur-resistant oil well pump |
| CN113374678B (en) * | 2020-02-25 | 2023-11-28 | 中国石油天然气股份有限公司 | Forced reset wear-resistant corrosion-resistant sulfur-resistant oil pump |
| CN114427354A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Ultra-deep oil and gas well supporting tube and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN106593833B (en) | 2018-04-06 |
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