CN203756135U - Assistant pumping device for deep well - Google Patents
Assistant pumping device for deep well Download PDFInfo
- Publication number
- CN203756135U CN203756135U CN201420099951.4U CN201420099951U CN203756135U CN 203756135 U CN203756135 U CN 203756135U CN 201420099951 U CN201420099951 U CN 201420099951U CN 203756135 U CN203756135 U CN 203756135U
- Authority
- CN
- China
- Prior art keywords
- periphery
- plunger
- sleeve
- plunger piston
- cylinder sleeve
- 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 - Lifetime
Links
- 238000005086 pumping Methods 0.000 title abstract description 14
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 14
- 230000008901 benefit Effects 0.000 description 4
- 239000011152 fibreglass Substances 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to an assistant pumping device for a deep well. The assistant pumping device can improve an assistant effect and is reliable in performance. The assistant pumping device comprises an upper plunger piston, a lower plunger piston, an upper rod flow dividing connector and a lower rod flow dividing connector. The periphery of the upper plunger piston and the periphery of the lower plunger piston are matched and sleeved with an upper cylinder jacket and a lower cylinder jacket respectively in a sliding mode. The periphery of the upper cylinder jacket and the periphery of the lower cylinder jacket are provided with an upper outer pipe and a lower outer pipe. The upper end of the upper outer pipe is in threaded connection with an upper outer connector connected with the periphery of the upper plunger piston in a sliding and supporting mode. The lower portion of the upper outer pipe is sequentially connected with the lower outer pipe through an adapter connector, an upper connecting sleeve and a lower connecting sleeve. The upper connecting sleeve is in threaded connection with the lower end of the upper cylinder jacket in a sealed mode. The inner side of the lower connecting sleeve is in threaded connection with the upper end of the lower cylinder jacket in a sealed mode. The lower end of the lower cylinder jacket is fixedly connected with the lower outer connector through a supporting ring in a supporting mode. The area of the cross section of the lower plunger piston is larger than that of the cross section of the upper plunger piston. The upper plunger piston and the lower plunger piston are fixedly connected through aligning and centering mechanism, and an air inlet channel is formed in the side direction of the upper connecting sleeve on the lower side of the supporting sleeve and used for preventing annular negative pressure between the upper plunger piston and the lower cylinder jacket.
Description
Technical field
The utility model relates to oil tool field, and particularly a kind of deep-well that is applicable to deeply taking out and can improves power-assisted effect, dependable performance helps picking device.
Background technology
Along with the increase of oil recovery percent of reserves, oil field development direction shifts to deeply buried reservoir, energy oil reservoir low, poor permeability gradually.For the exploitation of this class oil reservoir, the mining type that the little pump of main employing is taken out deeply at present.Deep oil well pump of the prior art mainly contains minor diameter series oil well pump, high-tensile sucker rod, glass fiber reinforced plastic oil pumping rod (density is little, lightweight), the large load oil pumping of long stroke equipment etc., for deeply taking out exploitation, has created certain means.But in application, mainly there is following problem:
1. high-tensile sucker rod, has the advantage that tensile strength is large, but its material is still steel, and density is large, and roofbolt weight is large.Be subject to the restriction of the outstanding rated load of pumping unit horsehead, the lower pump degree of depth is still restricted, and can not give full play to its advantage;
2. the oil pumper of changing larger model, its cost of investment is high, and energy consumption is large, and then causes that cost of crude oil production is high, oilfield economic benefit is low, and its promoted extension is limited;
3. glass fiber reinforced plastic oil pumping rod has advantages of that density is little, can deepen pump because of alleviating of roofbolt weight and hang, and realizes and deeply takes out object.But its mechanical property of materials a little less than, especially at aspects such as resistance to compression, antitorque, bending resistances, and underground working is severe, this glass fiber reinforced plastic oil pumping rod is fragile, oil well pump card, the fault such as touch, and also can cause multistage sucker rod to scrap, and increase operating cost.Be subject to the restriction of material of sucker rod performance, promoted extension is restricted.And glass fiber reinforced plastic oil pumping rod is expensive, the flaw detection equipment of specialty more needs high investment, and scene is difficult to promote.
The deficiency existing for solving above-mentioned deep oil well pump, in prior art, also develop a kind of deep-well and helped picking device, to utilize a certain node location inside and outside differential pressure of oil pipe in deep-well, drive " piston " mechanism, give lifting force making progress of rod string, thereby realize, strengthen pump extension, and reduce pumping unit horsehead polished rod load.The existing picking device that helps, adopts concentric hard connecting mode at present, and complicated in structure, there are the following problems: 1. sealing face leakage, and tubing string lost efficacy, and reliability is low; 2. plunger friction in down stroke is large, and node location generation roofbolt is disturbed song, the serious wear of holding concurrently; 3. manufacturing cost is high, and processing technology difficulty is large; 4. threading off voluntarily, dock success rate with operation low.
Utility model content
The utility model takes out for of the prior art the deficiency that instrument exists deeply, provides a kind of performance to help to take out effective, and friction in down stroke is little, and the deep-well that slows down plunger wear helps picking device.
The purpose of this utility model is to realize like this, a kind of deep-well helps picking device, comprise upper plug and lower plunger that center is communicated with and is fixedly connected with, described upper plug upper end and lower plunger lower end be threaded respectively upper boom tap and lower beam tap, described upper boom tap and lower beam tap side direction are respectively equipped with the side down hole being communicated with plunger center, described upper plug periphery and lower plunger periphery be slidably matched respectively sheathed upper cylinder half cover and lower cylinder sleeve, the periphery of described upper cylinder sleeve and lower cylinder sleeve respectively annular space is arranged with upper exterior tube and lower outer pipe, the upper socket that is threaded of described upper exterior tube upper end, described upper socket is connected with upper plug periphery sliding support, described upper exterior tube bottom is successively by variable buckle joint, upper joint sleeve is connected with lower outer pipe with lower joint sleeve, described upper joint sleeve center is provided with the support set of sliding support upper plug, the upper joint sleeve of described support set upside is connected with the lower end thread seal of upper cylinder sleeve, described lower joint sleeve inner side is connected with lower cylinder sleeve upper end thread seal, described lower cylinder sleeve lower end is connected by support ring fixed support with lower socket, the cross-sectional area of described lower plunger is greater than the cross-sectional area of upper plug, described upper plug is fixedly connected with by aligning righting mechanism with lower plunger, described aligning righting mechanism and lower cylinder sleeve and lower joint sleeve inwall are slidably matched, the upper joint sleeve side direction of described support set downside be provided with prevent upper plug and lower cylinder sleeve between the inlet channel of annular space negative pressure.
Deep-well of the present utility model helps picking device upper plug and lower plunger in upper cylinder sleeve and lower cylinder sleeve, to reciprocatingly slide, in use, upper boom tap upper end is connected with lower sucker rod with upper sucker rod respectively with lower beam tap lower end, lower sucker rod lower end connects deep well pump plunger and travelling valve, upper socket is connected with upper and lower oil pipe respectively with lower socket, and the lower end of lower oil pipe connects pump barrel and the standing valve of deep well pump.During upstroke, upper plug, lower plunger, deep well pump plunger move upward with upper and lower rod string, and now the travelling valve of deep well pump cuts out, and standing valve is opened, and completes feed liquor process.Meanwhile, help the upper plug of picking device different with the sectional area of lower plunger, in deep-well, device is inner exists fluid column pressure with outside, this sampling device self forms the extra thrust making progress, act on the plunger assembly of whole pumping tool, thereby give additional lifting force of bottom sucker rod.During down stroke, upper plug moves downward with upper lower sucker rod with lower plunger, and now the travelling valve of deep well pump is opened, and standing valve cuts out, and completes discharge opeing process.Connection between upper plug of the present utility model and lower plunger adopts aligning righting mechanism, make the upper and lower plunger can be with one heart placed in the middle well, has solved sucker rod and has disturbed that song, friction in down stroke are large, the problem of plunger eccentric wear, reliability and the life-span of having improved device.
As preferred version of the present utility model, described aligning righting mechanism comprises the connecting ring being threaded with upper plug lower end periphery, the aligning axle of the hollow that is threaded in week in described connecting ring lower end, the described aligning axle other end is provided with bulb, described connecting ring is arranged with cap that be threaded with lower plunger and tight with the aligning axle periphery between bulb, between described bulb and also tight cap and lower plunger, be fixed with respectively wear ring, between described wear ring and bulb, sphere is connected.In this structure, bulb and wear ring syndeton are set in the syndeton of upper plug and lower plunger, can make the poor upper plug of external diameter and lower plunger flexibly connects and with one heart placed in the middle all the time in cylinder sleeve, thereby avoid sucker rod to disturb song, reduce friction in down stroke, prevent plunger eccentric wear.
For avoiding impurity in inlet channel to enter, help be slidably matched surface wear cylinder sleeve and the plunger that is brought into plunger and cylinder sleeve in picking device, described inlet channel comprises the folding shape passage that the upper joint sleeve end face corresponding with lower joint sleeve is interlaced and form, and upper connecting rod cover side direction and the air inlet of rolling over shape channel connection.
Accompanying drawing explanation
Fig. 1 is the structural representation that deep-well of the present utility model helps picking device.
Wherein, 1 upper boom tap; Socket on 2; 3 upper plugs; Cylinder sleeve on 4; 5 upper exterior tubes; 6 variable buckle joints; 7 upper joint sleeves; 8 support sets; 9 air inlets; 10 lower joint sleeves; 11 lower outer pipes; 12 connecting rings; 13 regulate axle; 14 also tight caps; 15 wear rings; 16 lower plungers; 17 times cylinder sleeves; 18 times sockets; 19 support rings; 20 lower beam taps.
The specific embodiment
Be illustrated in figure 1 deep-well of the present utility model and help picking device, comprise upper plug 3 and lower plunger 16 that center is communicated with and is fixedly connected with, upper plug 3 upper ends and lower plunger 16 lower ends be threaded respectively upper boom tap 1 and lower beam tap 20, upper boom tap 1 and lower beam shunting connect 20 side direction and are respectively equipped with the side down hole being communicated with plunger center, upper plug 3 peripheries and lower plunger 16 peripheries be slidably matched respectively sheathed upper cylinder half cover 4 and lower cylinder sleeve 17, the periphery of upper cylinder sleeve 4 and lower cylinder sleeve 17 respectively annular space is arranged with upper exterior tube 5 and lower outer pipe 11, the upper socket 2 that is threaded of upper exterior tube 5 upper ends, upper socket 2 is connected with upper plug 3 periphery sliding supports, upper exterior tube 5 bottoms are successively by variable buckle joint 6, upper joint sleeve 7 is connected with lower outer pipe 11 with lower joint sleeve 10, upper joint sleeve 7 centers are provided with the support set 8 of sliding support upper plug 3, the upper joint sleeve 7 of support set 8 upsides is connected with the lower end thread seal of upper cylinder sleeve 4, lower joint sleeve 10 inner sides are connected with lower cylinder sleeve 17 upper end thread seals, lower cylinder sleeve 17 lower ends are connected by support ring 19 fixed supports with lower socket 18, the cross-sectional area of lower plunger 16 is greater than the cross-sectional area of upper plug 3, upper plug 3 is fixedly connected with by aligning righting mechanism with lower plunger 16, aligning righting mechanism and lower cylinder sleeve 17 and lower joint sleeve 10 inwalls are slidably matched, upper joint sleeve 7 side direction of support set 8 downsides be provided with prevent upper plug 3 and lower cylinder sleeve 17 between the inlet channel of annular space negative pressure, this inlet channel comprises the folding shape passage that upper joint sleeve 7 end face corresponding with lower joint sleeve 10 is interlaced and form, overlap 7 side direction and the air inlet 9 of rolling over shape channel connection with upper connecting rod.Above-mentioned aligning righting mechanism comprises the connecting ring 12 being threaded with upper plug 3 lower end peripheries, the aligning axle 13 of the hollow that is threaded in week in connecting ring 12 lower ends, aligning axle 13 other ends are provided with bulb, connecting ring 12 is arranged with cap 14 that be threaded with lower plunger 16 and tight with aligning axle 13 peripheries between bulb, between bulb and also tight cap 14 and lower plunger 16, be fixed with respectively wear ring 15, between wear ring 15 and bulb, sphere is connected.In this structure, bulb and wear ring syndeton are set in the syndeton of upper plug 3 and lower plunger 16, can make external diameter poor upper plug 3 and lower plunger 16 flexibly connect and with one heart placed in the middle all the time in cylinder sleeve, thereby avoid sucker rod to disturb song, reduce friction in down stroke, prevent plunger eccentric wear.
Of the present utility model helping in picking device, upper plug 3 is different from the sectional area of lower plunger 16, during upstroke, in deep-well, device is inner exists fluid column pressure with outside, this sampling device self forms the extra thrust making progress, act on the plunger assembly of whole pumping tool, thereby give additional lifting force of bottom sucker rod, obviously improve the pumping efficiency of whole deep well device, reduce plant energy consumption.In addition, between upper plug 3 of the present utility model and lower plunger 16, connect and adopt aligning righting mechanism, make the upper and lower plunger can be well with one heart placed in the middle, solved sucker rod and disturbed that song, friction in down stroke are large, the problem of plunger eccentric wear, reliability and the life-span of having improved device.
The utility model is not limited to above-described embodiment; every on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in the scope of the utility model protection.
Claims (3)
1. a deep-well helps picking device, it is characterized in that, comprise upper plug and lower plunger that center is communicated with and is fixedly connected with, described upper plug upper end and lower plunger lower end be threaded respectively upper boom tap and lower beam tap, described upper boom tap and lower beam tap side direction are respectively equipped with the side down hole being communicated with plunger center, described upper plug periphery and lower plunger periphery be slidably matched respectively sheathed upper cylinder half cover and lower cylinder sleeve, the periphery of described upper cylinder sleeve and lower cylinder sleeve respectively annular space is arranged with upper exterior tube and lower outer pipe, the upper socket that is threaded of described upper exterior tube upper end, described upper socket is connected with upper plug periphery sliding support, described upper exterior tube bottom is successively by variable buckle joint, upper joint sleeve is connected with lower outer pipe with lower joint sleeve, described upper joint sleeve center is provided with the support set of sliding support upper plug, the upper joint sleeve of described support set upside is connected with the lower end thread seal of upper cylinder sleeve, described lower joint sleeve inner side is connected with lower cylinder sleeve upper end thread seal, described lower cylinder sleeve lower end is connected by support ring fixed support with lower socket, the cross-sectional area of described lower plunger is greater than the cross-sectional area of upper plug, described upper plug is fixedly connected with by aligning righting mechanism with lower plunger, described aligning righting mechanism and lower cylinder sleeve and lower joint sleeve inwall are slidably matched, the upper joint sleeve side direction of described support set downside be provided with prevent upper plug and lower cylinder sleeve between the inlet channel of annular space negative pressure.
2. deep-well according to claim 1 helps picking device, it is characterized in that, described aligning righting mechanism comprises the connecting ring being threaded with upper plug lower end periphery, the aligning axle of the hollow that is threaded in week in described connecting ring lower end, the described aligning axle other end is provided with bulb, described connecting ring is arranged with cap that be threaded with lower plunger and tight with the aligning axle periphery between bulb, between described bulb and also tight cap and lower plunger, be fixed with respectively wear ring, between described wear ring and bulb, sphere is connected.
3. deep-well according to claim 1 and 2 helps picking device, it is characterized in that, described inlet channel comprises the folding shape passage that the upper joint sleeve end face corresponding with lower joint sleeve is interlaced and form, and upper connecting rod cover side direction and the air inlet of rolling over shape channel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099951.4U CN203756135U (en) | 2014-03-06 | 2014-03-06 | Assistant pumping device for deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099951.4U CN203756135U (en) | 2014-03-06 | 2014-03-06 | Assistant pumping device for deep well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756135U true CN203756135U (en) | 2014-08-06 |
Family
ID=51251422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420099951.4U Expired - Lifetime CN203756135U (en) | 2014-03-06 | 2014-03-06 | Assistant pumping device for deep well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855508A (en) * | 2019-11-28 | 2021-05-28 | 中国石油天然气股份有限公司 | Pipe type oil pump |
-
2014
- 2014-03-06 CN CN201420099951.4U patent/CN203756135U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855508A (en) * | 2019-11-28 | 2021-05-28 | 中国石油天然气股份有限公司 | Pipe type oil pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102400661B (en) | Balance valve for multi-layer fracturing operation of continuous oil pipe | |
| CN203756135U (en) | Assistant pumping device for deep well | |
| CN202914019U (en) | Packer seat sealing mechanism for coiled tubing | |
| CN201650203U (en) | Double rubber-barrel isolation packer | |
| CN201225114Y (en) | Downhole hydraulic self-sealing flexible plunger seal oil conduit type well head seal device | |
| CN203879719U (en) | Integrated gas injecting and oil extracting pump | |
| CN105697344A (en) | Large-diameter oil inlet valve type hydraulic feedback viscous oil pump | |
| CN205714693U (en) | Traveling valve tandem type long plunger gap bridge oil well pump | |
| CN210598927U (en) | Special downhole hydraulic motor for oil production | |
| CN208364108U (en) | A kind of downhole oil-gas separation device | |
| CN203394717U (en) | Traveling valve tandem type long plunger rod type oil well pump | |
| CN203189249U (en) | Tubing oil pump capable of achieving tool seat sealing under pump | |
| CN207004470U (en) | A kind of preventer of eccentric abrasion prevention formula | |
| CN202971146U (en) | Inserting sealing type deep suction power assisting device | |
| CN202937212U (en) | Top multistage pressure bearing type expandable construction device for expandable pipes | |
| CN108006006B (en) | Hollow hydraulic cylinder for operation under pressure | |
| CN102235346A (en) | Rod type deep-mining oil-well pump | |
| CN202157953U (en) | Load-reduction sucker rod string | |
| CN206681957U (en) | Three plunger mining pumps | |
| CN201206458Y (en) | Controllable switch hole sliding bush assembly | |
| CN101881142B (en) | Self-sealing setting ball seat | |
| CN202531079U (en) | Sucker rod ring-seal motive seal device | |
| CN203394718U (en) | Deep wall oil pump | |
| CN103362796A (en) | Load-shedding oil well pump for deep well | |
| CN202645951U (en) | Energy-saving rod-type deep well oil pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |