CN103256012A - Multifunctional centralizing and oil increasing device - Google Patents
Multifunctional centralizing and oil increasing device Download PDFInfo
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- CN103256012A CN103256012A CN2012100375677A CN201210037567A CN103256012A CN 103256012 A CN103256012 A CN 103256012A CN 2012100375677 A CN2012100375677 A CN 2012100375677A CN 201210037567 A CN201210037567 A CN 201210037567A CN 103256012 A CN103256012 A CN 103256012A
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Abstract
A multifunctional centralizing and oil increasing device characterized by a rotary centralizer capable of being changed to a plunger and a matched check valve comprises a moving coupling, a rod, a floating nylon spiral guide sleeve, a fixed nylon spiral guide sleeve, a fixed coupling and a check valve. The moving coupling, the rod, the floating nylon spiral guide sleeve, the fixed nylon spiral guide sleeve and the fixed coupling are combined together to be installed between two sucker rods to form the rotary centralizer. In up moving, the floating nylon spiral guide sleeve and the fixed nylon spiral guide sleeve are meshed to have the effect of the plunger, the check valve is arranged on the close sucker rod disposed on the lower side and is semi-fixed on an oil pipe to have the effect of a fixed valve, and accordingly a set of integral oil-well pump is formed. By changing materials and structures, the multifunctional centralizing and oil increasing device integrates multiple functions such as centralizing, abrasion resisting, falling preventing, paraffin preventing, sand preventing, clamping preventing, energy saving and oil increasing, achieves the purpose of oil increasing in aspects of thermal washing oil consumption reducing, production time efficiency increasing, multi-stage pump oil extracting and pump efficiency improving, and can be widely applied to oil extracting of sucker-rod pumps of vertical shafts, directional wells, conventional heavy oil wells and common sand production wells.
Description
Technical field
The present invention relates to the sucker rod pumping of petroleum industry oil recovery machiner technology, especially the wax control that uses on the sucker rod, sand control, anti-eccentric wear, anti-breaking centralizer, paraffin scraper and the oil increasing device that takes off and increase oil.Under technical field be F04C 23/00, be specially adapted for the combination of two or more pumps of elastic fluid, each be rotary-piston type or the oscillating plunger pump type; Be specially adapted for the pumping installations of elastic fluid; Be specially adapted for the multistage pump of elastic fluid.
Background technology
Oil well, the especially operation of directional well sucker rod pumping generally face eccentric wear, wax deposition, shake out, holddown, disconnected rate and gas slip, the influence of the profit differentiation problems such as pump efficiency of pumping of taking off etc. when influence work.Existing centralizer and oil increasing device type are various, but function is single relatively, can only solve one or two problem wherein, and with deciding valve, oil increasing effect is unlimited.The disclosed patent that can find in the recent period for example, various centralizers can be protected sucker rod and oil pipe, and common problem all is function singleness, can only set upright anti-eccentric wear;
Application number 200830148466.1, the sucker rod wax scraping centralizer, advantage is that paraffin cutting is combined with setting upright, shortcoming is to solve anticreep sand control problem, can not increase considerably pump efficiency;
The application for a patent for invention that approaches with the present invention numbers 201110131210.0, beam hanger increases oil and rotates the paraffin cutting centralizer, above union, center-pole, bearing, paraffin cutting wheel, helical groove and lower pipe connection are formed, and the cylindrical periphery of taking turns at paraffin cutting is provided with several helical grooves; The lower end of paraffin cutting wheel; Be communicated with at the bottom of the helical groove of the outer cylindrical wall of great circle nest and paraffin cutting wheel, be set on the bearing that pushes up on the great circle nest on the dome platform of center-pole, the center-pole upper end is screwed in the screw of union lower end, the center-pole lower end is cemented in the upper end of lower pipe connection, last union and lower pipe connection install the well bar respectively, when the well bar is reciprocating, in the process that moves downward, the great circle nest of fluid below the paraffin cutting wheel flow in the helical groove, so make the rotation of paraffin cutting wheel, increase the fluid dynamic of fluid, experimental results show that: have the minimizing loss of plunger stroke, anti-eccentric wear, high temperature resistant, corrosion-resistant, increase on year-on-year basis that to adopt liquid measure be 12-15%.This centralizer advantage is simple in structure, has paraffin cutting, sets upright, increases oily multiple function, and shortcoming is sand control, anticreep effectively, does not have the plunger effect, and it is limited to increase oil.
With the immediate utility application of the present invention number 02289592.2, a kind ofly increase oily centralizer, by the body of rod, go up wiper block and following wiper block constitutes.The interface that is characterized in two wiper blocks is zigzag, and the recessed base angle of following wiper block zigzag interface top line has the inclination angle more than 30 °, and the upper/lower terminal portion of two wiper blocks outside oil guide groove is the fairing broadening.Be serially connected in during use on the sucker rod, not only can play centralizing function to sucker rod, and can improve crude output effectively.This centralizer advantage is simple in structure, has to set upright with plunger to increase functional oil, and shortcoming is effectively sand control, anticreep, does not have the standing valve effect, and it is limited to increase oil.
Utility model application numbers 200620012655.1, a kind of oil increasing device, comprise the last box cupling, supporting positive cover, following box cupling and the excessive box cupling that are socketed in successively from top to bottom on the sucker rod, be connected with one in the lower end of excessive box cupling by mandrel and increase plug cock, in increasing plug cock, offer and increase oily passage, increase the relative mandrel of plug cock surface and slide up and down, control increases the opening and closing of oily passage.This oil increasing device advantage is to have to set upright with plunger to increase functional oil, and shortcoming is to have only the rotation supporting positive cover, can not sand control, anticreep, there is not the standing valve effect, and it is limited to increase oil.
Summary of the invention
In order to overcome the relative single and limited deficiency of oil increasing effect with the oil increasing device function of existing centralizer, the present invention is by changing material and the structure of centralizer and oil increasing device, formation increases oily device with multi-functional the setting upright that the rotation centralizer that can be changed into plunger and supporting flap valve are feature, collection is set upright, abrasionproof, anticreep, wax control, sand control, anti-sticking, energy-conservation, to increase oily multiple function be one, reaches the multi-functional oily purpose that increases jointly.
The object of the invention is achieved through the following technical solutions:
Device of the present invention is formed: comprise movable box cupling, the body of rod, the nylon spiral stream guidance cover that moves about, fixedly nylon spiral stream guidance cover, fixedly box cupling and flap valve.The body of rod, fixedly box cupling, the processing of movable box cupling employing high performance alloys; Fixedly spiral stream guidance cover, the spiral stream guidance that moves about cover adopt the whole compression moulding of wear-resisting rare earth oil-containing nylon, become slight interference to excessively cooperating with oil pipe; The check valve structure uniqueness comprises valve body and cover plate, and the rotation pod apertures is arranged on the valve body, and check valve body and cover plate adopt the whole compression moulding of abrasion resistant polyurethane, and cover plate cuts out on the whole at flap valve.Fixedly box cupling and body of rod lower end are connected as a single entity, fixedly nylon spiral stream guidance cover is spliced on fixing box cupling, movable box cupling is suspended on the other end of the body of rod and can slides and rotation at the body of rod flexibly, and flap valve becomes interference fit with oil pipe, becomes with sucker rod excessively to cooperate.
Assembling and operating principle: movable box cupling, the body of rod, the spiral stream guidance cover that moves about, fixedly the spiral stream guidance cover, fixedly box cupling is combined and is installed between two sucker rods formation and rotates centralizer.Move about when up the spiral stream guidance cover, fixedly spiral stream guidance cover mesh the plunger effect, flap valve is installed on the adjacent following sucker rod of rotation centralizer, plays the standing valve effect, formation one is overlapped complete oil well pump.Multi-functionally set upright that flap valve is pushed into lower limit by rod collar when increasing oily device and going into the well, flap valve is because becoming interference fit semifixed on oil pipe automatically with oil pipe.When sucker rod moves downward, semifixed flap valve cuts out the rotation pod apertures because of cover plate nature lower cover and seals, the nylon spiral stream guidance that moves about cover and fixedly nylon spiral stream guidance cover disengagement, this moment, fixedly the guiding gutter of nylon spiral stream guidance cover caused the fluid rotation, move about nylon spiral stream guidance cover because spiral stream guidance concentrated flow body promotes to rotate freely at the body of rod, play the effect of rotation centralizer, the spiral stream guidance groove of two nylon jacket forms the fluid passage, tube fluid is static relatively in the vertical, and the footpath is rotation upwards; When sucker rod moves upward, the nylon spiral stream guidance that moves about cover glides relatively, its stupefied double wedge point inserts in the recessed crown of fixing nylon spiral stream guidance grooving and is meshed, the spiral stream guidance cover that moves about of this moment can not rotate, and the fluid passage is blocked, and centralizer plays the plunger effect, the above fluid of plunger is up with plunger, under the plunger, the cover plate of semifixed flap valve upwardly opens, under the valve fluid through rotation pod apertures and cover plate water conservancy diversion spiral enter semifixed end with valve on.
The realization of major function:
1. set upright.The present invention rotates the fixedly nylon spiral stream guidance cover on the centralizer, the nylon spiral stream guidance cover that moves about is axle with the sucker rod, and external diameter and oil pipe are slight interference fit, can make sucker rod placed in the middle in oil pipe, plays the drag reduction of nylon centralizer and sets upright function;
2. abrasionproof.The two spiral stream guidances cover that the present invention rotates on the centralizer adopts wear-resisting rare earth oil-containing nylon product, friction factor is very little, the wear extent of self is very little when pumping with sucker rod in oil pipe, and the spiral stream guidance that moves about overlaps continuous rotation can effectively prevent self eccentric wear, further prolongs spiral stream guidance and overlaps application life.Simultaneously, two nylon spiral stream guidances covers long-term motion can not cause noticeable wear to oil pipe yet, can avoid locate to wear and tear oil pipe or rub sucker rod such as directional well dog-leg;
3. breakage-proof.Two nylon spiral stream guidances of the present invention cover adopts wear-resisting rare earth oil-containing nylon product, has high strength, high resiliency, anticorrosive, high-low temperature resistant (30 ℃～150 ℃), anti-aging, low noise, self-lubricating, super wear-resisting characteristics; Flap valve adopts the whole compression moulding of abrasion resistant polyurethane, physical property such as have wear-resisting, oil resistant, acid and alkali-resistance, anti-ozone, chemical property such as ageing-resistant and tear-resistant, shock-resistant, high resiliency, absorbing power is strong, and the load support capacity is big.Even situations such as piece holddown are fallen in the centralizer fragmentation that wearing and tearing also can not occur often seeing;
4. wax control.When sucker rod pumps in oil pipe, be installed in a plurality of rotation centralizers on the wax deposition section sucker rod in the oil pipe (not adorning semifixed flap valve when being used for wax control) also moves up and down thereupon, spiral stream guidance cover surface is difficult for wax deposition, angle when up on the spiral stream guidance groove can easily scrape off the wax on the tubing wax section, fluid acts on the spiral stream guidance groove when descending, the constantly rotation of the nylon spiral stream guidance that moves about cover can further improve the paraffin cutting effect;
5. anticreep.Pump in oil pipe with sucker rod; owing to be subjected to up-down stroke varying load, hole deviation, fluid, wax resistance influence and the frictional force of oil pump plunger piston when pumping; usually can produce certain turning round refuses; refuse when releasing direction when turning round, other downhole tools that can force sucker rod in the oil pipe and sucker rod to connect rotate and thread off.Movable box cupling of the present invention rotates flexibly, can eliminate turning round of generation at any time and refuse, when simultaneously descending fixedly the guiding gutter of spiral stream guidance cover promoted by fluid, generation is necessarily linked closely to turn round and is refused, thereby plays the effect of threading off of preventing;
6. sand control.Chamfering and inclined-plane are arranged at two nylon spiral stream guidances cover top, and guiding gutter is unobstructed up and down, can avoid plunger sand card.Semifixed flap valve has than strong elasticity, can avoid the sand card.Main is since when descending the spiral stream guidance groove water conservancy diversion of two nylon spiral stream guidances cover make the fluid rotation, reduced to contain the sand subsidence velocity, plunger segmentation election effect has increased and has contained sand with the fluid uplink capacity when up, semifixed flap valve rotation pod apertures and cover plate water conservancy diversion make the fluid rotation under the plunger, can effectively control sand setting, avoid the sand card.
7. energy-conservation.Power saving function mainly realizes by following several respects: the first, and rotation centralizer oil-containing nylon reduces the frictional resistance with oil pipe; The second, the wax deposition resistance reduces; The 3rd, this device that is serially connected on the sucker rod constitutes multipole pump, fluid column is separated on the multistage carries, the fluid column segmentation has slowed down oil gas water (sand) gravitational differentiation with rotation and has separated, reduce the total water-oil factor of pit shaft, be conducive to reduce each section and oil pumper load, reduced loss of plunger stroke; The 4th, the fluid column segmentation has alleviated the head of liquid that acts on the oil pump plunger piston top, is conducive to improve the coefficient of fullness of oil well pump, reduces the wastage of oil well pump, directly improves pump efficiency, reduces energy loss.
8. increase oil.Increasing functional oil mainly realizes by following several respects: the first, because can wax deposition, have reduced cyclical heat and washed oil consumption; The second, sucker rod can not break and take off, and has reduced the shaft bottom sand setting, has fallen piece, adds and has reduced the oil well pump load, has prolonged the working life of pump in the down-hole, therefore, can prolong pump detection period significantly, rate when having increased production; The 3rd, the multipole pump configuration that the present invention is special directly increases the oil effect, and every suit device that is serially connected on the sucker rod all is equivalent to an oil well pump, and fluid column is separated on the multistage and carries, the fluid column segmentation has reduced oil gas water (sand) gravitational differentiation and has separated, and has reduced the total water-oil factor of pit shaft; The 4th, multipole pump has alleviated the head of liquid that acts on the oil pump plunger piston top, is conducive to improve the coefficient of fullness of oil well pump, reduces the wastage of oil well pump, directly plays to increase the oil effect.
This advantage:
1, material property is reasonable.Centralizer, oil increasing device material are unreasonable, and quick abrasion, to fall the piece holddown be the problem that sucker-rod pumping well, especially directional well often run into.Material property of the present invention is reasonable, frictional resistance little, super wear-resisting, do not fall piece, can effectively prolong pump detection period.The body of rod, fixedly employing such as box cupling, movable box cupling high performance alloys processing; Two nylon spiral stream guidances covers adopts wear-resisting rare earth oil-containing nylon product, and whole compression moulding has high strength, high resiliency, high-low temperature resistant (30 ℃～150 ℃), anticorrosive, anti-aging, low noise, self-lubricating, super wear-resisting characteristics; Flap valve adopts the whole compression moulding of abrasion resistant polyurethane product, physical property such as have wear-resisting, oil resistant, acid and alkali-resistance, anti-ozone, chemical property such as ageing-resistant and tear-resistant, shock-resistant, high resiliency, absorbing power is strong, and the load support capacity is big.
2, simple and practical.Two nylon spiral stream guidances cover adopts the whole press-formed product of wear-resisting rare earth oil-containing nylon, and flap valve adopts the whole press-formed product of abrasion resistant polyurethane, and easy to process, assembling is quick, can not fall piece, can multi-functional taking into account.
3, function is integrated comprehensively.Solved the various pit shaft problems of sucker rod pumping well more up hill and dale, comprise anti-eccentric wear, anti-breakingly take off, wax removal, sediment outflow, anti-sticking, anti-slip, anti-differentiation, drag reduction, energy-conservation, increase oil.
4, oil increasing effect is remarkable.Wash oil consumption by reducing cyclical heat, increase to carry in rate, the fluid segmentation when producing and reduce the fluid differentiation, improve the pump efficiency multipath and increase oil, effect is remarkable.
Of the present invention have a suitable effect:
Install of the present invention multi-functional set upright increase oily device after, collection is set upright, abrasionproof, anticreep, wax control, sand control, anti-sticking, energy-conservation, to increase oily multiple function be one, rate, multipole pump recover the oil, improve the several aspects of pump efficiency and realize increasing oily purpose when washing oil consumption, increase production from reducing heat, can not prolong 1～2 times of pump detection period than not installing, can energy-conservation 15%, can increase oily 15-25%, remarkable in economical benefits.The present invention can be widely used in straight well, directional well, conventional heavy oil wells, general sand output well sucker rod pumping.
Description of drawings
Fig. 1 is rotation centralizer structure figure, and order comprises from top to bottom: (1) movable box cupling; (2) body of rod; (3) the spiral stream guidance cover that moves about; (4) fixing spiral stream guidance cover; (5) fixing box cupling.Movable box cupling (1), the body of rod (2), fixedly box cupling (5) employing high performance alloys processing; Move about spiral stream guidance cover (3), fixedly spiral stream guidance cover (4) adopts the whole compression moulding of wear-resisting rare earth oil-containing nylon, becomes slight interference to excessively cooperating with oil pipe; Fixedly box cupling (5) and the body of rod (2) lower end are connected as a single entity, and fixedly nylon spiral stream guidance cover (4) is spliced on fixing box cupling (5), and the nylon spiral stream guidance cover (3) that moves about can also can rotate freely in the body of rod (2) at wander up and down on the body of rod (2).Fig. 2 is check valve structure figure, comprising: (6) flap valve cover plate; (7) check valve body; (8) rotation pod apertures.Check valve structure uniqueness, check valve body (2) and cover plate (1) adopt the whole compression moulding of abrasion resistant polyurethane, and cover plate (1) cuts out on the whole at flap valve, and flap valve becomes interference fit with oil pipe, becomes with sucker rod excessively to cooperate.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, structure and the effect of apparatus of the present invention further described.
In well, will rotate the movable box cupling of centralizer (1) and connect sucker rod, fixedly connect sucker rod under the box cupling (5); Flap valve is installed on the adjacent following sucker rod of rotation centralizer.Packing density is determined with different needs as the case may be, about 100 meters covers when being main purpose to increase oil; Determine according to the hole deviation degree when being main purpose to set upright, can about 30 meters one covers near the dog-leg; The wax deposition section is encrypted and is installed, and guarantees that adjacent rotation centralizer can join with the well section of stroke movement, and is not with flap valve.Multi-functionally set upright that flap valve is pushed into lower limit by rod collar when increasing oily device and going into the well, and because become interference fit semifixed on oil pipe automatically with oil pipe.When sucker rod moves downward, the natural lower cover of the cover plate of semifixed flap valve (6) upward seals rotation pod apertures (8) to valve body (7) and stops fluid descending, the nylon spiral stream guidance cover (3) that moves about is thrown off with fixing nylon spiral stream guidance cover (4), this moment, fixedly the guiding gutter of nylon spiral stream guidance cover (4) caused the fluid rotation, the nylon spiral stream guidance cover (3) that moves about promotes to rotate freely at the body of rod because of spiral stream guidance concentrated flow body, play the effect of rotation centralizer, the spiral stream guidance groove of two spiral stream guidances cover forms the fluid passage, the oil pipe inner fluid is static relatively in the vertical, and the footpath is rotation upwards; When sucker rod moves upward, the nylon spiral stream guidance cover (3) that moves about glides relatively, its stupefied double wedge point inserts in the recessed crown of fixing nylon spiral stream guidance cover (4) guiding gutter and is meshed, the spiral stream guidance cover that moves about of this moment can not rotate, fluid passage is blocked, centralizer plays the plunger effect, the above fluid of plunger is up, the cover plate of semifixed flap valve (6) is tilted upward and from valve body (7) rotation pod apertures (8) is opened, and the following fluid of semifixed flap valve enters on the semifixed flap valve through rotation pod apertures (8) and cover plate (6) water conservancy diversion spiral.
Claims (5)
1. multi-functional setting upright increases oily device, it is characterized in that forming comprise movable box cupling, the body of rod, the nylon spiral stream guidance cover that moves about, fixedly nylon spiral stream guidance cover, fixedly box cupling and flap valve.
2. multi-functional setting upright as claimed in claim 1 increases oily device, it is characterized in that movable box cupling, the body of rod, the spiral stream guidance cover that moves about, fixedly the spiral stream guidance cover, fixedly box cupling is combined to be installed between two sucker rods and is constituted the rotation centralizer, the spiral stream guidance that moves about when up cover has meshed the plunger effect with fixing spiral stream guidance cover, flap valve is installed on the adjacent following sucker rod of rotation centralizer, semifixedly play the standing valve effect at oil pipe, constitute the complete oil well pump of a cover.
3. multi-functional setting upright as claimed in claim 1 increases oily device, it is characterized in that semifixed check valve structure uniqueness, comprise valve body and cover plate, the rotation pod apertures is arranged on the valve body, check valve body and cover plate adopt the whole compression moulding of abrasion resistant polyurethane, cover plate cuts out on the whole at flap valve, and flap valve is because becoming interference fit semifixed on oil pipe automatically with oil pipe.
4. multi-functional setting upright as claimed in claim 1 increases oily device, it is characterized in that when sucker rod moves downward, the nylon spiral stream guidance that moves about cover and fixedly nylon spiral stream guidance cover disengagement, fixedly the guiding gutter of nylon spiral stream guidance cover causes the fluid rotation, the nylon spiral stream guidance cover that moves about promotes to rotate freely at the body of rod because of spiral stream guidance concentrated flow body, play the effect of rotation centralizer, the spiral stream guidance groove of two spiral stream guidances cover forms the fluid passage, when sucker rod moves upward, the nylon spiral stream guidance that moves about overlaps stupefied double wedge and is meshed and can not rotates with the fixing recessed crown of nylon spiral stream guidance grooving, the fluid passage is blocked, and centralizer plays the plunger effect.
5. multi-functional setting upright as claimed in claim 1 increases oily device, it is characterized in that when sucker rod moves downward semifixed flap valve cuts out the rotation pod apertures because of cover plate nature lower cover and seals, when sucker rod moves upward, the cover plate of semifixed flap valve upwardly opens, and plays the standing valve effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100375677A CN103256012A (en) | 2012-02-20 | 2012-02-20 | Multifunctional centralizing and oil increasing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100375677A CN103256012A (en) | 2012-02-20 | 2012-02-20 | Multifunctional centralizing and oil increasing device |
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| CN103256012A true CN103256012A (en) | 2013-08-21 |
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| CN2012100375677A Pending CN103256012A (en) | 2012-02-20 | 2012-02-20 | Multifunctional centralizing and oil increasing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105952392A (en) * | 2016-05-17 | 2016-09-21 | 铁岭米勒石油新材料有限公司 | Auxiliary oil pumping amplifier |
| CN108533218A (en) * | 2018-05-14 | 2018-09-14 | 中国石油集团西部钻探工程有限公司 | Scraping wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952392A (en) * | 2016-05-17 | 2016-09-21 | 铁岭米勒石油新材料有限公司 | Auxiliary oil pumping amplifier |
| CN105952392B (en) * | 2016-05-17 | 2019-01-25 | 铁岭米勒石油新材料有限公司 | A kind of auxiliary oil pumping synergistic device |
| CN108533218A (en) * | 2018-05-14 | 2018-09-14 | 中国石油集团西部钻探工程有限公司 | Scraping wall |
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Application publication date: 20130821 |