CN110500265A - A kind of long oil well pump of long plunger sand control equipped with resistance sand hydrotubator - Google Patents

A kind of long oil well pump of long plunger sand control equipped with resistance sand hydrotubator Download PDF

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Publication number
CN110500265A
CN110500265A CN201910785890.4A CN201910785890A CN110500265A CN 110500265 A CN110500265 A CN 110500265A CN 201910785890 A CN201910785890 A CN 201910785890A CN 110500265 A CN110500265 A CN 110500265A
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sand
liquid
resistance sand
resistance
hydrotubator
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CN110500265B (en
Inventor
程雅雯
王皓
杨怀龙
沙志文
韩玉君
向锋
臧伟伟
范宝江
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Aoais Petroleum Engineering Service Chengdu Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/34Arrangements for separating materials produced by the well
    • E21B43/38Arrangements for separating materials produced by the well in the well
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/005Sand trap arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Check Valves (AREA)

Abstract

The present invention relates to a kind of long oil well pumps of long plunger sand control equipped with resistance sand hydrotubator.Its technical solution is: the lower end connection resistance sand hydrotubator of fixed valve, the upper end of the outer barrel of the resistance sand hydrotubator is equipped with top connection, the lower end inner wall of outer barrel installs the first inner cone nut, it is successively arranged resistance sand from bottom to top in the inner cavity of outer barrel and leads to liquid circulation plates, it hinders sand and leads to liquid reflecting plate, it hinders sand and leads to liquid collecting board and booster, inlet opening leads to liquid reflecting plate with resistance sand and corresponds to each other, booster is equipped with bellmouth, liquid leads to liquid reflecting plate by resistance sand by the logical liquid circulation plates of resistance sand and carries out first order resistance sand, liquid, which leads to the logical liquid collecting board of liquid reflecting plate flow direction resistance sand using resistance sand, realizes that the second level hinders sand, liquid is using the pressure for improving liquid, pass through fixed valve valve again, pump barrel extraction.Beneficial effect is: resistance sand leads to liquid reflecting plate and hinders sand and leads under the blocking that liquid collecting board can fully achieve sand, to realize good sand controlling result, can reach the purpose for extending pump efficiency.

Description

A kind of long oil well pump of long plunger sand control equipped with resistance sand hydrotubator
Technical field
The present invention relates to a kind of petroleum industry sand control device for oil-well pump and methods, in particular to a kind of to lead to liquid equipped with resistance sand The long oil well pump of the long plunger sand control of device.
Background technique
Currently, being influenced in oil exploitation by complicated geological structure, containing the oil well of fine silt in oil liquid, in the whole nation Various regions oil field is all generally existing, when being produced in these oil wells using conventional oil well pump, the general oil well pump for using long-plunger, but It is that often will appear sand card, the defects such as pump efficiency is low make oil well pump premature failure, oil well is caused to stop production, operation is frequent, the life of crude oil Cost is produced to improve.
Chinese patent literature Publication No. 102146911A, patent name are " a kind of long plunger type sand-control oil well pump ", are equipped with Under pump barrel, the standing valve being connect with pump barrel end, the plunger in pump barrel, the upper traveling valve being connect with upper end and plunger The lower travelling valve of connection is held, outer sleeve is provided with outside pump barrel of the invention, there is ring-like cavity between outer sleeve and pump barrel, it is ring-like Cavity lower part is connect with bilateral sand sediment pipe.Plunger of the invention is long-plunger, and the length of long-plunger is greater than the length of integral barrel tubing pump. The lower end inside of long-plunger is arranged in lower travelling valve of the invention, is provided with locating detent above lower travelling valve.Oil well pump work When making, long-plunger exceeds outside pump barrel always, and long-plunger blocks sand grains, and sand grains is just not easy to enter in pump barrel, and sand grains is along ring-like Cavity deposits to downwards in bilateral sand sediment pipe, this method can a degree of realization sand control the problem of.
In addition, Chinese patent literature Publication No. 204805078U, patent name is a kind of " long plunger sand control card oil pumping Pump ", the upper end of long-plunger assembly is equipped with delivery valve, and the outside of long-plunger assembly is provided with pump barrel assembly, pump barrel assembly it is outer Portion is provided with desilting outer tube;Long-plunger assembly lower end is equipped with bleeder, and bleeder is internally provided with travelling valve, bleeder lower end Fixed valve assembly is installed.Suitable for oil well of the sand content less than 0.8%, it is mainly used for recovering the oil in the biggish oil well of sand production rate Operation using sand controlling result ideal pump barrel assembly and long-plunger assembly structure, while increasing sand setting outer tube, makes to pump Pump can be good at for the part sand grains that crude oil carries being blocked in except pump barrel assembly in pumping process, simultaneously because sand grains weight The effect of power makes sand fallout in the annular space between pump barrel assembly and statement outer tube, and this method can be a degree of The problem of realizing sand control.
The present invention realizes the probability for reducing sand grains and entering pump barrel using resistance sand hydrotubator and sand setting chamber is added, and improves length The service life of plunger oil-well pump.
Summary of the invention
The purpose of the present invention is to drawbacks described above of the existing technology, provide a kind of length equipped with resistance sand hydrotubator The long oil well pump of plunger sand control may be implemented multistage resistance sand to greatly reduce the sand in oil liquid and substantially extend dress The service life set.
A kind of long oil well pump of long plunger sand control equipped with resistance sand hydrotubator that the present invention mentions, technical solution is: including Pump barrel (3), long-plunger (4), connecting tube (5), fixed valve (6), resistance sand hydrotubator (7), upper traveling valve (10), lower travelling valve (11), the upper end of the pump barrel (3) connects flow string (2), and the lower end of pump barrel (3) is connected and fixed valve (6), in fixed valve (6) Fixed valve valve (12) are installed;It is equipped with long-plunger (4) in the pump barrel (3), it is all that the lower end of long-plunger (4) is equipped with lower travelling The upper end of that (11), long-plunger (4) is equipped with upper traveling valve (10), it is characterized in that: the lower end connection resistance sand of the fixed valve (6) Hydrotubator (7), the resistance sand hydrotubator (7) include top connection (7.1), booster (7.2), resistance sand logical liquid collecting board (7.3), resistance Sand leads to liquid reflecting plate (7.4), resistance sand leads to liquid circulation plates (7.5), outer barrel (7.6) and the first inner cone nut (7.7), the outer cylinder The upper end of body (7.6) is equipped with top connection (7.1), and the lower end inner wall of outer barrel (7.6) installs the first inner cone nut (7.7), outside It is logical that the inner cavity of cylinder (7.6) is successively arranged resistance sand logical liquid circulation plates (7.5), resistance sand logical liquid reflecting plate (7.4), resistance sand from bottom to top Liquid collecting board (7.3) and booster (7.2), the resistance sand lead to liquid circulation plates (7.5) and are equipped with the first inlet opening, inlet opening and resistance sand Logical liquid reflecting plate (7.4) correspond to each other, and resistance sand leads to the centrally disposed place of the second inlet opening of liquid reflecting plate (7.4), and resistance sand leads to liquid Collecting board (7.3) is equipped with third inlet opening, and booster (7.2) is equipped with bellmouth, and liquid leads to liquid circulation plates (7.5) warp by resistance sand It crosses resistance sand and leads to liquid reflecting plate (7.4) progress first order resistance sand, liquid hinders sand using resistance sand logical liquid reflecting plate (7.4) flow direction and leads to liquid Collecting board (7.3) realizes that the second level hinders sand, and liquid leads to liquid collecting board (7.3) using resistance sand and flows to booster (7.2) raising liquid The pressure of body, then extracted out by fixed valve valve (12), pump barrel (3).
Preferably, above-mentioned resistance sand lead to liquid circulation plates (7.5) include circular body (7.5.1), the first inlet opening (7.5.2), Centre bore (7.5.3) is equipped with centre bore (7.5.3) at the center of circular body (7.5.1), in the outer ring of centre bore (7.5.3) Equipped with multiple first inlet openings (7.5.2), first inlet opening (7.5.2) is the bellmouth of lower thick upper thin, centre bore (7.5.3) is lower thin and upper thick bellmouth.
Preferably, it includes reflecting plate main body (7.4.1) and the second inlet opening that above-mentioned resistance sand, which leads to liquid reflecting plate (7.4), (7.4.2), the center of reflecting plate main body (7.4.1) are equipped with the second inlet opening (7.4.2) of lower thick upper thin.
Preferably, it includes collecting board circular body (7.3.1), third inlet opening that above-mentioned resistance sand, which leads to liquid collecting board (7.3), (7.3.2) is equipped with more than four groups of third inlet opening (7.3.2), the third feed liquor on collecting board circular body (7.3.1) Hole (7.3.2) is the bellmouth of lower thick upper thin.
Preferably, above-mentioned booster (7.2) includes intensifier body (7.2.1) and pressurized hole (7.2.2), the booster The center of main body (7.2.1) is equipped with the pressurized hole (7.2.2) of the pyramidal structure of lower thick upper thin.
Preferably, the outer diameter of above-mentioned first inner cone nut (7.7) is cylinder, and passes through external screw thread and resistance sand hydrotubator (7) outer barrel (7.6) is flexibly connected, and the inner wall of the first inner cone nut (7.7) is inner cone shape, and lower mouth is thick, suitable for reading Carefully.
Preferably, above-mentioned fixed valve (6) includes valve seat (6.1), fixes valve body (6.2) and fixed valve valve (12), Gu Determining valve body (6.2) is the thick reducer union in the thin lower end in upper end, and upper end is connect by external screw thread with the lower end of pump barrel (3), lower end It is flexibly connected by internal screw thread with the top connection (7.1) of resistance sand hydrotubator (7), valve seat (6.1) is located under fixed valve body (6.2) Side, fixed valve valve (12) are located in the cavity between valve seat (6.1) and the upper end of fixed valve body (6.2).
Preferably, above-mentioned resistance sand leads to liquid reflecting plate (7.4) and resistance sand leads between liquid circulation plates (7.5) equipped with the second inner cone spiral shell Cap (7.8) leads between liquid collecting board (7.3), resistance sand logical liquid reflecting plate (7.4) in resistance sand and is equipped with third inner cone nut (7.9).
The beneficial effects of the present invention are: present invention employs resistance sand hydrotubators, and in the liquid containing sand oil during above mentioning, solid Granular sand passes through multiple impacts, generates and downward kinetic energy occurs, and when long-plunger moves down, oil liquid loses the dynamic of rising Can, at this moment the sand of solid granular continues to move down acceleration sinking;Wherein, resistance sand leads to liquid reflecting plate and the logical liquid of resistance sand is collected Multistage resistance sand may be implemented in plate, to greatly reduce the sand in oil liquid;Since long-plunger is in the upper distance for mentioning and moving down It is very short, so the oil liquid capacity proposed upwards every time is seldom, only account for 1/1 to tens percent appearance of sand setting chamber volume Product, therefore, the oil flow of supplement when rising are slow, resistance sand lead to liquid reflecting plate and resistance sand lead to liquid collecting board can be completely real Under the blocking of existing sand, to realize good sand controlling result;
In addition, the present invention is additionally arranged sand setting chamber below fixed valve, it may be convenient to will occur above fixed valve valve a small amount of Sand falls into sand setting chamber, can reach the purpose for extending pump efficiency.
Detailed description of the invention
Attached drawing 1 is structural schematic diagram of the invention;
Attached drawing 2 is the semi-cutaway for hindering sand hydrotubator;
Attached drawing 3 is the structural schematic diagram for hindering sand and leading to liquid circulation plates;
Attached drawing 4 is the sectional view for hindering sand and leading to liquid circulation plates;
Attached drawing 5 is the structural schematic diagram for hindering sand and leading to liquid reflecting plate;
Attached drawing 6 is the sectional view for hindering sand and leading to liquid reflecting plate;
Attached drawing 7 is the structural schematic diagram of booster;
Attached drawing 8 is the structural schematic diagram for hindering sand and leading to liquid collecting board;
Attached drawing 9 is the sectional view for hindering sand and leading to liquid collecting board;
Attached drawing 10 is the structural schematic diagram for hindering the embodiment 2 of sand hydrotubator;
In upper figure: sucker rod 1, flow string 2, pump barrel 3, long-plunger 4, connecting tube 5, fixed valve 6, resistance sand hydrotubator 7, oil well set Pipe 8, artificial bottom of a well 9, upper traveling valve 10, lower travelling valve 11, fixed valve valve 12, sand setting chamber 13;
Top connection 7.1, booster 7.2, resistance sand leads to liquid collecting board 7.3, resistance sand leads to liquid reflecting plate 7.4, resistance sand leads to liquid circulation plates 7.5, outer barrel 7.6, the first inner cone nut 7.7, the second inner cone nut 7.8, third inner cone nut 7.9;Reflecting plate main body 7.4.1 With the second inlet opening 7.4.2.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1, referring to attached drawing 1-2, a kind of long oil pumping of long plunger sand control equipped with resistance sand hydrotubator that the present invention mentions Pump, including pump barrel 3, long-plunger 4, connecting tube 5, fixed valve 6, resistance sand hydrotubator 7, upper traveling valve 10, lower travelling valve 11, institute The upper end connection flow string 2 of pump barrel 3 is stated, the lower end of pump barrel 3 is connected and fixed valve 6, fixed valve valve is equipped in fixed valve 6 12;Long-plunger 4 is installed, the lower end of long-plunger 4 is equipped with lower travelling valve 11, and the upper end of long-plunger 4 is equipped with upper in the pump barrel 3 Travelling valve 10, it is characterized in that: the lower end connection resistance sand hydrotubator 7 of the fixed valve 6, the resistance sand hydrotubator 7 includes above connecing First 7.1, booster 7.2, resistance sand lead to liquid collecting board 7.3, resistance sand leads to liquid reflecting plate 7.4, resistance sand leads to liquid circulation plates 7.5, outer barrel 7.6 and the first inner cone nut 7.7, the upper end of the outer barrel 7.6 be equipped with top connection 7.1, the lower end inner wall of outer barrel 7.6 is installed It is anti-to be successively arranged the logical liquid circulation plates 7.5 of resistance sand, the logical liquid of resistance sand in the inner cavity of outer barrel 7.6 from bottom to top for first inner cone nut 7.7 Plate 7.4, the logical liquid collecting board 7.3 of resistance sand and booster 7.2, the resistance sand is penetrated to lead to liquid circulation plates 7.5 and be equipped with the first inlet opening, feed liquor Hole leads to liquid reflecting plate 7.4 with resistance sand and corresponds to each other, and resistance sand leads to the centrally disposed place of the second inlet opening of liquid reflecting plate 7.4, hinders sand Logical liquid collecting board 7.3 is equipped with third inlet opening, and booster 7.2 is equipped with bellmouth, and liquid leads to liquid circulation plates 7.5 by resistance sand and passes through It hinders sand and leads to the progress first order resistance sand of liquid reflecting plate 7.4, liquid leads to the flow direction of liquid reflecting plate 7.4 using resistance sand and hinders the logical liquid collecting board of sand 7.3 realize that the second level hinders sand, and liquid leads to liquid collecting board 7.3 using resistance sand and flows to the pressure of the raising liquid of booster 7.2, then leads to Cross fixed valve valve 12, pump barrel 3 is extracted out.
Referring to attached drawing 3-4, it includes circular body 7.5.1, the first inlet opening 7.5.2, centre bore that resistance sand, which leads to liquid circulation plates 7.5, 7.5.3, the center of circular body 7.5.1 be equipped with centre bore 7.5.3, the outer ring of centre bore 7.5.3 be equipped with multiple first into Fluid apertures 7.5.2, the first inlet opening 7.5.2 are the bellmouth of lower thick upper thin, and centre bore 7.5.3 is lower thin and upper thick taper Hole.
Referring to attached drawing 5-6, it includes reflecting plate main body 7.4.1 and the second inlet opening that resistance sand of the invention, which leads to liquid reflecting plate 7.4, 7.4.2, the center of reflecting plate main body 7.4.1 is equipped with the second inlet opening 7.4.2 of lower thick upper thin.
Referring to attached drawing 8-9, it includes collecting board circular body 7.3.1, third feed liquor that resistance sand of the invention, which leads to liquid collecting board 7.3, Hole 7.3.2 is equipped with more than four groups of third inlet opening 7.3.2, the third inlet opening on collecting board circular body 7.3.1 It 7.3.2 is the bellmouth of lower thick upper thin.
Referring to attached drawing 7, booster 7.2 of the invention includes intensifier body 7.2.1 and pressurized hole 7.2.2, the pressurization The center of device main body 7.2.1 is equipped with the pressurized hole 7.2.2 of the pyramidal structure of lower thick upper thin.
In addition, the outer diameter of the first inner cone nut 7.7 is cylinder, and pass through the outer barrel of external screw thread and resistance sand hydrotubator 7 7.6 are flexibly connected, and the inner wall of the first inner cone nut 7.7 is inner cone shape, and lower mouth is thick, suitable for reading thin.
The fixed valve 6 that the present invention mentions includes valve seat 6.1, fixed valve body 6.2 and fixed valve valve 12, fixed valve body 6.2 be the thick reducer unions in the thin lower end in upper end, and upper end connect by external screw thread with the lower end of pump barrel 3, lower end pass through internal screw thread and The top connection 7.1 for hindering sand hydrotubator 7 is flexibly connected, and valve seat 6.1 is located at fixed 6.2 downside of valve body, and fixed valve valve 12 is located at In cavity between valve seat 6.1 and the upper end of fixed valve body 6.2.In addition, sand setting chamber 13 is additionally arranged below fixed valve 6, it can With a small amount of sand that will easily occur above fixed valve valve, sand setting chamber is fallen into, can reach the purpose for extending pump efficiency.
Above-mentioned resistance sand leads to liquid reflecting plate 7.4 and resistance sand leads between liquid circulation plates 7.5 equipped with the second inner cone nut 7.8, is hindering Sand leads to liquid collecting board 7.3, resistance sand leads between liquid reflecting plate 7.4 equipped with third inner cone nut 7.9.
The application method for the long oil well pump of long plunger sand control equipped with resistance sand hydrotubator that the present invention mentions, being includes following step It is rapid:
Firstly, assembling resistance sand hydrotubator, first screws in booster 7.2 in 7.6 inner cavity of outer barrel, then install through third inner cone nut 7.9 lead to the lower section that liquid collecting board 7.3 screws in and is fixed on booster 7.2 for sand is hindered;It then, will by the second inner cone nut 7.8 Resistance sand leads to the lower section that liquid reflecting plate 7.4 is fixed on third inner cone nut 7.9;Resistance sand is led to by liquid by the first inner cone nut 7.7 again Circulation plates 7.5 are fixed on the lower section of the second inner cone nut 7.8, complete the assembling of resistance sand hydrotubator;
Second, the long oil well pump of long plunger sand control is assembled, assembled resistance sand hydrotubator is movably connected in admittedly by top connection 7.1 Determine the lower end of valve 6, and install fixed valve valve 12 on the valve seat of fixed valve 6, the upper end of fixed valve 6 is movably connected in pump barrel 3 Lower end;Then, it will be inserted into pump barrel 3 equipped with the long-plunger 4 of upper traveling valve 10 and lower travelling valve 11, completes long plunger sand control The assembling of long oil well pump;Then pass through flow string 2 for pump barrel 3, connecting tube 5, fixed valve 6, resistance 7 tripping in oil well set of sand hydrotubator The bottom of pipe 8, close at artificial bottom of a well 9;The upper end of the long-plunger 4 is connected to the lower end of sucker rod 1;
Third drives sucker rod 1 to move up and down by the pumping unit of well head, when sucker rod 1 drives long-plunger 4 to move up, fixed valve Valve 12 is raised above, and the liquid containing sand oil at oil well casing 8 and artificial bottom of a well 9 successively leads to liquid by the resistance sand of resistance sand hydrotubator 7 Circulation plates 7.5, resistance sand lead to liquid reflecting plate 7.4, resistance sand leads to liquid collecting board 7.3 and booster 7.2, after multiple impacts hinder sand, The feed pathway that oil liquid is formed after being risen by fixed valve valve 12 moves up, and passes through long-plunger 4, upper traveling valve 10 and downstream The cooperation of dynamic valve 11 and pump barrel 3, mentions oil liquid above to well head along oil pipe.
Preferably, in step 3, detailed process is as follows by resistance sand hydrotubator 7 for liquid containing sand oil:
Before start-up operation, the entire sand hydrotubator 7 that hinders submerges below the liquid level of the liquid containing sand oil, and the top of the liquid containing sand oil is opened due to one The beginning sand content that remains static is less;
One, when long-plunger 4 starts to move up:
Fixed valve valve 12 is opened, and the oil liquid positioned at sand setting chamber 13 rises along fixed valve 6, and is smoothly promoted to pump barrel 3 and length In the cavity that plunger 4 is formed;
Lead to liquid collecting board 7.3 positioned at resistance sand and hinder the oil liquid that sand leads to cavity between liquid reflecting plate 7.4, along third inlet opening 7.3.2 rise, and add to sand setting chamber 13 by booster 7.2;
Lead to liquid reflecting plate 7.4 positioned at resistance sand and hinder the liquid containing sand oil that sand leads to cavity between liquid circulation plates 7.5, it is anti-to lead to liquid along resistance sand The the second inlet opening 7.4.2 for penetrating plate 7.4 rises, and the sand of solid granular collides the collecting board that resistance sand leads to liquid collecting board 7.3 Circular body 7.3.1 is moved down, and oil liquid continues on third inlet opening 7.3.2 rising;
The liquid containing sand oil for hindering logical 7.5 lower section of liquid circulation plates of sand then leads to the rising of liquid circulation plates 7.5 by resistance sand, follows since resistance sand leads to liquid Ring flat-plate 7.5 is equipped with the first inlet opening 7.5.2 of the multiple lower thick upper thins of circle, and centre is equipped with lower thin and upper thick centre bore 7.5.3, When liquid containing sand oil passes through the first inlet opening 7.5.2 of outer ring, flow velocity is speeded;Pass through the flow velocity of the liquid containing sand oil of centre bore 7.5.3 Slow down;And the liquid containing sand oil of the rising speeded by the first inlet opening 7.5.2 flow velocity collides resistance sand and leads to the anti-of liquid reflecting plate 7.4 Plate main body 7.4.1 is penetrated, after the sand rebound of solid particle, the slower liquid containing sand oil with the flow velocity of centre bore 7.5.3 rising It collides and sinks or partial suspended again;
Two, when long-plunger 4 is inverted and pushed down on: the sinking of fixed valve valve 12 is set on valve seat, pump barrel 3 and long-plunger 4 Oil liquid in the cavity of formation is above mentioned in flow string 2;
If containing a small amount of sand in the oil liquid of sand setting chamber 13, sand can realize sinking under the effect of gravity;
If containing a small amount of sand in the oil liquid of 7.2 inner cavity of booster, sand can realize sinking under the effect of gravity;
Lead to liquid collecting board 7.3 positioned at resistance sand and hinder the oil liquid that sand leads to cavity between liquid reflecting plate 7.4, a small amount of sand contained also can It realizes under the effect of gravity, and the sand collided accelerates to sink under the drive of not ascending liquid;
Lead to liquid reflecting plate 7.4 positioned at resistance sand and hinder the liquid containing sand oil that sand leads to cavity between liquid circulation plates 7.5, the sand collided exists Do not have under the drive of ascending liquid, accelerates to sink;
Lead to the liquid containing sand oil of 7.5 lower section of liquid circulation plates positioned at resistance sand, the sand collided adds under the drive of not ascending liquid Speed is sunk;
Three, when long-plunger 4 moves up again, continue the movement for repeating step 1,2 inner fluid of flow string continues above to mention, and hinders Sand hydrotubator then realizes the multistage resistance sand for the oil liquid taken out;In the circulate operation for constantly moving up and moving down of long-plunger 4, underground Oil liquid by bit by bit be retracted to well head.
The principle for the technique that the present invention is able to achieve is: the law that liquid follows is that Pascal's law is moved to all directions It is dynamic, and being suspended in the intracorporal suspended particulate of liquid i.e. suspension is that crystal has its basic exercise of anisotropy: meet Newton's law And collision principle.Liquid is the substance of molecule and atomic level, and particle size diameter rank is angstrom level i.e. 10-10The granularity of m and colloid Rank is 10-9~10-7Between m, and the granularity of the suspended particulate of suspension is greater than 10-7M's, and the filtering accuracy one of sand screen As for greater than 0.1mm i.e. 10-4M, that is, suspended particulate volume and quality are more much larger than fluid molecule.
Embodiment 2, a kind of long oil well pump of long plunger sand control equipped with resistance sand hydrotubator that the present invention mentions, with embodiment 1 It is a difference in that:
Referring to attached drawing 10, resistance sand hydrotubator 7 is that level-one hinders sand structure, and specific structure includes top connection 7.1, booster 7.2, resistance sand Logical liquid reflecting plate 7.4, resistance sand lead to liquid circulation plates 7.5, outer barrel 7.6 and the first inner cone nut 7.7, the outer barrel 7.6 it is upper End is equipped with top connection 7.1, and the lower end inner wall of outer barrel 7.6 installs the first inner cone nut 7.7, in the inner cavity of outer barrel 7.6 under To being above successively arranged, the logical liquid circulation plates 7.5 of resistance sand, resistance sand leads to liquid reflecting plate 7.4 and booster 7.2, the resistance sand lead to liquid circulation plates 7.5 are equipped with the first inlet opening, and inlet opening leads to liquid reflecting plate 7.4 with resistance sand and corresponds to each other, hinder the second of the logical liquid reflecting plate 7.4 of sand into The centrally disposed place of fluid apertures, booster 7.2 are equipped with bellmouth, and it is anti-by the logical liquid of resistance sand that liquid passes through the logical liquid circulation plates 7.5 of resistance sand It penetrates plate 7.4 and carries out first order resistance sand, liquid leads to liquid collecting board 7.3 using resistance sand and flows to the pressure that booster 7.2 improves liquid, It is extracted out again by fixed valve valve 12, pump barrel 3.
The comparative experimental data used in oil wells in field of the invention is as follows:
1. facing the oblique XX well of XX-: the well complete well date of test is on December 16th, 2008 (for Shengli Oil Field Internal Experiment)
It is electrolysed serial number 28 29 30 51 55 59 62 63 66
Layer position s2s s2s s2s s2x s2x s2x s2x s2x s2x
Porosity 16.5 17.9 18.3 13.4 13.4 16.0 18.4 17.9 18.3
Permeability 37.8 141.5 42.0 33.4 30.9 52.9 245.1 9.60 104.6
Shale content 12.1 10.8 19.9 13.1 13.0 8.9 13.3 15.5 29.5
It is deep (m) that hole deviation is penetrated in fact 4.50 5.70 2.50 9.10 4.70 3.80 3.90 3.00 1.7
Remarks Produce layer Produce layer Produce layer Produce layer Produce layer Sand seal Sand seal Sand seal Sand seal
Explanation results Oily dried layer Oily dried layer Oily dried layer Oily dried layer Oily dried layer Oil reservoir Water Flooding Layer Water Flooding Layer Oily dried layer
This well and correlation face well production status
2009.1.22 bring in a well test, operation layer position s2x, is electrolysed serial number 59,62,63,66, well section 3435.5-3500.5m (this non-fractured layer), 4 layers of perforation 12.4m, initial stage day liquid 3.3t, aqueous 100%, latter stage day liquid 0.9t, day oil 0, it is aqueous 95%, the stage tires out oil 5t, and the stage tires out water 65t.
2009.4.29 back-up sand well section 3435.5-3500.5m sand face 3389.77m above returns 28,29,30 wells (this non-pressure break Layer) well section 2895.8-2937.3m, initial stage day liquid 11.3t, day oil 10.1t, aqueous 10%, hydrodynamic face 257m.
S2x2 perforation 3351.2-3360.3m is returned under 2016.11,3364.7-3369.4m, 11.8m(are this fracturing section), Conjunction is adopted, initial stage day liquid 0.8t, day oil 0.4t, the aqueous liquid 0.7t of the day before yesterday on the 37.5%, day oil 0.4t, and aqueous 43.6%.
The service condition of the well pump:
It is to start on December 2nd, 2009 to complete lower pumping liquid on December 25th, 2009 to start to try to be evacuated to 2009 after time complete well The long plunger sand control pump that on April 29 in the new well examination pumping stage uses, stops taking out because pump is long.
Start the resistance sand hydrotubator that oil well pump is connect under long plunger sand control pump on probation November 29 days to 2016 April in 2009, There is not sand phenomenon, shale content 29 therein is 141.5, it can be seen that the resistance sand effect of resistance sand hydrotubator.
In November, 2016, the oil well pump used was still centre long plunger pump, at this moment under centre long plunger pump on July 29th, 2018 Using two groups is to hinder sand hydrotubator group with the connected series connection of pipe nipple (1.5m), because changing production technology (well 2018 After be changed to oil production by layer technique), specifically when examining pump, have no fine silt in fixed valve assembly, specifically use long-plunger Structure of the sand-preventing pump suspended from resistance sand hydrotubator group.
In conclusion
Serial number 1 2 3
Tool Long plunger sand control pump Long plunger sand control pump+level-one hinders sand hydrotubator Long plunger sand control pump+second level hinders sand hydrotubator group
Time About 5 months 7 months 1 year 1 month 2 years
Effect Stop taking out because of sand card There is certain sand content in fixed valve assembly Sand grains is had no in fixed valve assembly
The above is only part preferred embodiment of the invention, and anyone skilled in the art is possibly also with upper Equivalent technical solution is modified or be revised as to the technical solution for stating elaboration.Therefore, technical solution according to the present invention Any simple modification carried out or substitute equivalents, belong to the greatest extent the scope of protection of present invention.

Claims (8)

1. it is a kind of equipped with resistance sand hydrotubator the long oil well pump of long plunger sand control, it is characterized in that: include pump barrel (3), long-plunger (4), Connecting tube (5), fixed valve (6), resistance sand hydrotubator (7), upper traveling valve (10), lower travelling valve (11), the pump barrel (3) Upper end connects flow string (2), and the lower end of pump barrel (3) is connected and fixed valve (6) by connecting tube (5), is equipped in fixed valve (6) Fixed valve valve (12);It is equipped with long-plunger (4) in the pump barrel (3), the lower end of long-plunger (4) is equipped with lower travelling valve (11), the upper end of long-plunger (4) is equipped with upper traveling valve (10), it is characterized in that: the lower end connection resistance sand of the fixed valve (6) is logical Liquid device (7), the resistance sand hydrotubator (7) include top connection (7.1), booster (7.2), resistance sand logical liquid collecting board (7.3), resistance sand Logical liquid reflecting plate (7.4), resistance sand lead to liquid circulation plates (7.5), outer barrel (7.6) and the first inner cone nut (7.7), the outer barrel (7.6) upper end is equipped with top connection (7.1), and the lower end inner wall of outer barrel (7.6) installs the first inner cone nut (7.7), in outer cylinder The inner cavity of body (7.6) is successively arranged resistance sand logical liquid circulation plates (7.5) from bottom to top, resistance sand leads to liquid reflecting plate (7.4), resistance sand leads to liquid Collecting board (7.3) and booster (7.2), the resistance sand lead to liquid circulation plates (7.5) and are equipped with the first inlet opening, and inlet opening and resistance sand are logical Liquid reflecting plate (7.4) corresponds to each other, and resistance sand leads to the centrally disposed place of the second inlet opening of liquid reflecting plate (7.4), and resistance sand, which leads to liquid, to be received Collect plate (7.3) and be equipped with third inlet opening, booster (7.2) is equipped with bellmouth, and liquid leads to liquid circulation plates (7.5) by resistance sand and passes through Resistance sand leads to liquid reflecting plate (7.4) and carries out first order resistance sand, and liquid is received using the logical liquid of resistance sand logical liquid reflecting plate (7.4) flow direction resistance sand Collect plate (7.3) and realize that the second level hinders sand, liquid flows to booster (7.2) using resistance sand logical liquid collecting board (7.3) and improves liquid Pressure, then be drawn upwardly out pump barrel (3) by fixed valve valve (12).
2. the long plunger sand control long oil well pump according to claim 1 equipped with resistance sand hydrotubator, it is characterized in that: the resistance sand Logical liquid circulation plates (7.5) include circular body (7.5.1), the first inlet opening (7.5.2), centre bore (7.5.3), in circular body The center of (7.5.1) is equipped with centre bore (7.5.3), is equipped with multiple first inlet openings in the outer ring of centre bore (7.5.3) (7.5.2), first inlet opening (7.5.2) are the bellmouth of lower thick upper thin, and centre bore (7.5.3) is lower thin and upper thick taper Hole.
3. the long plunger sand control long oil well pump according to claim 1 equipped with resistance sand hydrotubator, it is characterized in that: the resistance sand Logical liquid reflecting plate (7.4) include reflecting plate main body (7.4.1) and the second inlet opening (7.4.2), in reflecting plate main body (7.4.1) The heart is equipped with the second inlet opening (7.4.2) of lower thick upper thin.
4. the long plunger sand control long oil well pump according to claim 1 equipped with resistance sand hydrotubator, it is characterized in that: the resistance sand Logical liquid collecting board (7.3) include collecting board circular body (7.3.1), third inlet opening (7.3.2), in collecting board circular body (7.3.1) is equipped with more than four groups of third inlet opening (7.3.2), and the third inlet opening (7.3.2) is the cone of lower thick upper thin Shape hole.
5. the long plunger sand control long oil well pump according to claim 1 equipped with resistance sand hydrotubator, it is characterized in that: the pressurization Device (7.2) includes intensifier body (7.2.1) and pressurized hole (7.2.2), and the center of the intensifier body (7.2.1) is equipped with down The slightly pressurized hole (7.2.2) of upper thin pyramidal structure.
6. the long plunger sand control long oil well pump according to claim 1 equipped with resistance sand hydrotubator, it is characterized in that: described first The outer diameter of inner cone nut (7.7) is cylinder, and is flexibly connected by external screw thread with the outer barrel (7.6) for hindering sand hydrotubator (7), The inner wall of the first inner cone nut (7.7) is inner cone shape, and lower mouth is thick, suitable for reading thin.
7. the long plunger sand control long oil well pump according to claim 1 equipped with resistance sand hydrotubator, it is characterized in that: the fixation Valve (6) includes valve seat (6.1), fixed valve body (6.2) and fixed valve valve (12), and fixed valve body (6.2) are under upper end is thin Thick reducer union is held, upper end is connect by external screw thread with the lower end of pump barrel (3), and lower end passes through internal screw thread and resistance sand hydrotubator (7) top connection (7.1) is flexibly connected, and valve seat (6.1) is located on the downside of fixed valve body (6.2), and fixed valve valve (12) is located at In cavity between valve seat (6.1) and the upper end of fixed valve body (6.2).
8. the long plunger sand control long oil well pump according to claim 1 equipped with resistance sand hydrotubator, it is characterized in that: the resistance sand Logical liquid reflecting plate (7.4) and resistance sand, which lead to, is equipped with the second inner cone nut (7.8) between liquid circulation plates (7.5), lead to liquid in resistance sand and collect Plate (7.3), resistance sand, which lead to, is equipped with third inner cone nut (7.9) between liquid reflecting plate (7.4).
CN201910785890.4A 2019-08-23 2019-08-23 Long plunger sand prevention long oil well pump with sand blocking liquid through device Active CN110500265B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2483346A1 (en) * 2002-04-23 2003-11-06 Theodore A. Kampfen Sand and particle separator for fluid pumping systems
CN201306276Y (en) * 2008-09-11 2009-09-09 陈玉祥 Self-cleaning sand-screening pipe pumping unit
CN102146911A (en) * 2010-02-08 2011-08-10 孙德盛 Sand-prevention oil-well pump with long plunger
US20130039780A1 (en) * 2011-08-09 2013-02-14 Weatherford/Lamb, Inc. Reciprocating Rod Pump for Sandy Fluids
CN206571659U (en) * 2017-03-27 2017-10-20 盐城华远石油机械有限公司 A kind of long plunger sand control can just wash energy-conserving and environment-protective oil well pump
CN208436509U (en) * 2018-05-23 2019-01-29 杭州科以才成科技有限公司 A kind of multilayer water conservancy diversion plate washer orientation desilting sand discharge filter device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2483346A1 (en) * 2002-04-23 2003-11-06 Theodore A. Kampfen Sand and particle separator for fluid pumping systems
CN201306276Y (en) * 2008-09-11 2009-09-09 陈玉祥 Self-cleaning sand-screening pipe pumping unit
CN102146911A (en) * 2010-02-08 2011-08-10 孙德盛 Sand-prevention oil-well pump with long plunger
US20130039780A1 (en) * 2011-08-09 2013-02-14 Weatherford/Lamb, Inc. Reciprocating Rod Pump for Sandy Fluids
CN206571659U (en) * 2017-03-27 2017-10-20 盐城华远石油机械有限公司 A kind of long plunger sand control can just wash energy-conserving and environment-protective oil well pump
CN208436509U (en) * 2018-05-23 2019-01-29 杭州科以才成科技有限公司 A kind of multilayer water conservancy diversion plate washer orientation desilting sand discharge filter device

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