CN113833441A - Oilfield water injection well water distributor with adjustable flow and use method thereof - Google Patents
Oilfield water injection well water distributor with adjustable flow and use method thereof Download PDFInfo
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- CN113833441A CN113833441A CN202111146248.5A CN202111146248A CN113833441A CN 113833441 A CN113833441 A CN 113833441A CN 202111146248 A CN202111146248 A CN 202111146248A CN 113833441 A CN113833441 A CN 113833441A
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- 238000002347 injection Methods 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 21
- 235000020681 well water Nutrition 0.000 title claims abstract description 18
- 239000002349 well water Substances 0.000 title claims abstract description 18
- 239000002332 oil field water Substances 0.000 title abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 130
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 210000001503 joint Anatomy 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses an oil field water injection well water distributor with adjustable flow, which comprises a sleeve, wherein a first screw cap and a threaded pipe are sleeved at the position, close to the top, of the outer edge of the sleeve, the threaded pipe is positioned above the first screw cap, a second screw cap is sleeved at the outer edge of the threaded pipe, a limiting mechanism is arranged at the position, close to the top end, of the outer edge of a fixed column, the water distributor with adjustable flow for the oil field water injection well and a using method thereof can adjust the position of a movable pipe according to the water supply pressure so as to adjust the position of a sealing ring, when the sealing ring moves to the position above a first water outlet hole, water injection is started, and when the sealing ring moves to a second water outlet hole so as to increase the water injection amount, compared with the prior art, the water distributor has various functions, the water injection amount depends on the water supply pressure, and water nozzles with different diameters are prevented from being processed on the water distributor, the processing difficulty is small, and the production cost is low.
Description
Technical Field
The invention relates to the technical field of petroleum industry, in particular to an oil field water injection well water distributor with adjustable flow and a use method thereof.
Background
The oilfield flooding is characterized in that water with a quality meeting the requirements is injected into an oil layer from a water injection well by using water injection equipment to maintain the pressure of the oil layer, the process is called oilfield flooding, the oilfield flooding is one of important means for supplementing energy to a stratum and improving the oil field recovery ratio in the oilfield development process, and the height of the water injection well management technical level determines the development effect of the oilfield and also determines the development life of the oilfield. The water distributor that the water injection well of oil field used more at present, the function is comparatively simple, how much of its water injection volume is mainly controlled by the size of water distributor water injection well diameter, and the processing degree of difficulty of this kind of water distributor is great, and manufacturing cost is higher promptly, along with the development of technique, people often can not satisfy the preparation in prior art, improves on prior art's basis, for this reason we bring an oil field water injection well water distributor and application method with adjustable flow.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an oil field water injection well water distributor with adjustable flow and a using method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
the water distributor for the oil field water injection well with the flow adjustable function comprises a sleeve, wherein a first nut and a threaded pipe are sleeved at the position, close to the top, of the outer edge of the sleeve, the threaded pipe is located above the first nut, a second nut is sleeved at the position, close to the top, of the outer edge of the threaded pipe, a fixed column is arranged in an inner cavity of the threaded pipe, a limiting mechanism is arranged at the position, close to the top, of the outer edge of the fixed column, butt joint positioning mechanisms are arranged on two sides of the fixed column, a movable pipe is arranged in the inner cavity of the sleeve, a spring and a second annular fixed plate are sleeved at the position, close to the top, of the outer edge of the movable pipe, the second annular fixed plate is fixedly connected to the outer edge of the movable pipe, the bottom end of the spring is fixedly connected with the second annular fixed plate, the top end of the spring is fixedly connected to the bottom end of the fixed column, a lower annular limiting plate is sleeved at the position, and a lower annular limiting plate is arranged at the position, close to the bottom end, of the outer edge of the movable pipe, Go up annular limiting plate and two sealing washers, two the sealing washer sets up from top to bottom, annular limiting plate is located the sealing washer bottom of below down, it is located the sealing washer top of top to go up annular limiting plate, down annular limiting plate and last annular limiting plate all with movable tube fixed connection, sheathed tube inner chamber fixedly connected with toper cover, the toper cover is located second annular fixed plate and goes up between the annular limiting plate, the first apopore of a plurality of has been seted up to sheathed tube outside edge, a plurality of second apopore has been seted up jointly to the outside edge of sleeve pipe and toper cover.
Preferably, the outer edge of the sleeve is provided with an external thread near the top end, the external thread is in threaded connection with the threaded pipe, the first nut is located below the external thread, and the first nut is fixedly connected with the sleeve.
Preferably, the second nut is fixedly connected with the threaded pipe, the top setting height of the second nut is lower than that of the threaded pipe, and the bottom setting height of the second nut is lower than that of the threaded pipe.
Preferably, the limiting mechanism comprises an annular supporting plate and a first annular fixing plate, the annular supporting plate and the first annular fixing plate are both sleeved at the position, close to the top end, of the outer edge of the fixing column, the first annular fixing plate is located above the annular supporting plate, the annular supporting plate is fixedly connected with the fixing column, the first annular fixing plate is fixedly connected to the position, close to the top end, of the inner cavity of the threaded pipe, a top plate is fixedly connected to the top of the fixing column, the top plate is located above the first annular fixing plate, and a transverse plate is fixedly connected to the top of the top plate.
Preferably, the butt joint positioning mechanism comprises a limiting strip, the limiting strip is fixedly connected to the side wall of the fixing column, the limiting strip is close to the bottom of the side wall of the fixing column, limiting grooves are formed in the positions, close to the top ends, of two sides of the inner cavity of the sleeve, and the limiting strip is movably connected to the inner cavities of the adjacent limiting grooves.
Preferably, the lateral wall cross-section of toper cover is triangle-shaped, just the end and the sleeve pipe fixed connection of toper cover triangular structure, the longer waist of toper cover triangular structure is down to one side, the shorter waist of toper cover triangular structure is up to one side.
Preferably, the distance between the two limiting grooves is greater than the diameter of the section circle of the annular supporting plate, the diameter of the section circle of the annular supporting plate is greater than the diameter of the section circle of the sleeve, and the diameters of the section circles of the top plate, the annular supporting plate and the first annular fixing plate are all smaller than the diameter of the section circle of the threaded pipe.
Preferably, lower annular groove has been seted up at the top of lower annular limiting plate, go up annular limiting plate's bottom and seted up the upper ring groove, lower annular groove and upper ring groove laminate with adjacent sealing washer each other respectively, lower annular limiting plate set up highly be higher than first apopore, the top that is located first apopore of second apopore.
A method for using an oilfield injection well water distributor with adjustable flow comprises the following steps:
the method comprises the following steps: connecting the sleeve with a water inlet end, applying a certain pressure to the inlet water, pushing the movable pipe to move upwards along with the increase of water pressure, discharging air above the movable pipe from the limiting groove, driving the second annular fixing plate, the upper annular limiting plate, the lower annular limiting plate and the two sealing rings to move upwards by the movable pipe, and compressing the spring;
step two: when the upper annular limiting plate, the lower annular limiting plate and the two sealing rings move upwards to the position above the first water outlet hole along with the movable pipe, and the height of the lower annular limiting plate is higher than that of the first water outlet hole, the water pressure is kept stable and inconvenient, and water is discharged from the first water outlet hole;
step three: when the water injection amount needs to be increased, the water pressure is increased, the movable pipe moves upwards along with the increase of the water pressure, the movable pipe continues to drive the second annular fixing plate, the upper annular limiting plate, the lower annular limiting plate and the two sealing rings to move upwards, the sealing rings move on the inner wall of the conical sleeve, the moving resistance of the movable pipe is increased, the water pressure is increased continuously, meanwhile, the spring continues to compress, and in the process, water is discharged from the first water outlet hole continuously;
step four: when the upper annular limiting plate, the lower annular limiting plate and the two sealing rings move upwards to the position above the second water outlet along with the movable pipe, the height of the lower annular limiting plate is higher than that of the second water outlet, the water pressure is kept stable and inconvenient, water is discharged from the second water outlet, the water is discharged from the first water outlet and the second water outlet at the moment, and the water injection amount is increased;
step five: when the movable pipe needs to be installed, the movable pipe, the fixed column, the spring, the threaded pipe and the second nut are moved integrally, one end of the movable pipe is inserted from the top of the sleeve, then the movable pipe is moved downwards, when the fixed column moves to the upper portion of the sleeve, the limiting strips on two sides of the fixed column are enabled to rotate the limiting grooves on two sides of the inner cavity of the sleeve, then the fixed column is pushed, the threaded pipe is sleeved with the outer edge of the sleeve, the first nut is clamped through a tool, then the second nut is screwed, the threaded pipe moves downwards on the outer edge of the sleeve, the threaded pipe drives the first annular fixed plate to move, the first annular fixed plate drives the annular supporting plate to move, the fixed column is further driven to move, and the movable pipe can be installed until the annular supporting plate moves to the top of the sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a water distributor with adjustable flow for an oil field water injection well and a use method thereof, which can adjust the position of a movable pipe according to the water supply pressure, further adjust the position of a sealing ring, start water injection when the sealing ring moves above a first water outlet hole, and increase the water injection amount when the sealing ring moves on a second water outlet hole;
2. the invention relates to a water distributor with adjustable flow for an oil field water injection well and a using method thereof, which can prevent a movable pipe from moving upwards due to smooth inner wall of a sleeve when the movable pipe moves to the position by the arrangement of a conical sleeve, thereby stably fixing the movable pipe at a specified position and ensuring the stability of water injection,
3. according to the oil field water injection well water distributor with the adjustable flow and the use method thereof, the spring is arranged on the inner wall of the sleeve, so that the spring is prevented from being corroded due to a humid environment in the water injection well, the service life of the spring is guaranteed, and the fixing column is convenient to install through the arrangement of the limiting groove and the limiting strip.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a cross-sectional perspective view of the present invention;
FIG. 4 is a perspective view of a second nut which is a component of the present invention;
FIG. 5 is a perspective view of a component movable tube of the present invention;
FIG. 6 is a perspective view of a component sleeve of the present invention;
FIG. 7 is an enlarged view taken at A in FIG. 3;
FIG. 8 is an enlarged view at B in FIG. 3;
FIG. 9 is a cut-away perspective view of a conical sleeve of a component of the present invention
Reference numbers in the figures: 1. a sleeve; 2. a first nut; 3. a second nut; 4. a threaded pipe; 5. a transverse plate; 6. a top plate; 7. a first water outlet; 8. an external thread; 9. an annular pallet; 10. a first annular fixed plate; 11. a limiting strip; 12. a lower annular limiting plate; 13. a seal ring; 14. an upper annular limiting plate; 15. fixing a column; 16. a spring; 17. a second annular fixing plate; 18. a limiting groove; 19. a conical sleeve; 20. a movable tube; 21. a lower annular groove; 22. an upper annular groove; 23. and a second water outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, the present invention provides a technical solution:
a water distributor with adjustable flow for an oil field water injection well comprises a casing 1, a first screw cap 2 and a threaded pipe 4 are sleeved on the outer edge of the casing 1 close to the top, an external thread 8 is arranged on the outer edge of the casing 1 close to the top, the external thread 8 is in threaded connection with the threaded pipe 4, the first screw cap 2 is positioned below the external thread 8, the first screw cap 2 is fixedly connected with the casing 1, the threaded pipe 4 is positioned above the first screw cap 2, a second screw cap 3 is sleeved on the outer edge of the threaded pipe 4, the second screw cap 3 is fixedly connected with the threaded pipe 4, the top of the second screw cap 3 is lower than the top of the threaded pipe 4, the bottom of the second screw cap 3 is lower than the bottom of the threaded pipe 4, a fixing column 15 is arranged in an inner cavity of the threaded pipe 4, and a limiting mechanism is arranged on the outer edge of the fixing column 15 close to the top, the limiting mechanism comprises an annular supporting plate 9 and a first annular fixing plate 10, the annular supporting plate 9 and the first annular fixing plate 10 are sleeved at the position, close to the top end, of the outer edge of a fixing column 15, the first annular fixing plate 10 is located above the annular supporting plate 9, the annular supporting plate 9 is fixedly connected with the fixing column 15, the first annular fixing plate 10 is fixedly connected to the position, close to the top end, of an inner cavity of a threaded pipe 4, a top plate 6 is fixedly connected to the top of the fixing column 15, the top plate 6 is located above the first annular fixing plate 10, and a transverse plate 5 is fixedly connected to the top of the top plate 6;
the butt joint positioning mechanism is arranged on two sides of the fixed column 15 and comprises a limiting strip 11, the limiting strip 11 is fixedly connected on the side wall of the fixed column 15, the limiting strip 11 is close to the bottom of the side wall of the fixed column 15, limiting grooves 18 are respectively formed in two sides of the inner cavity of the sleeve 1 close to the top end, the limiting strip 11 is movably connected with the inner cavity of the adjacent limiting groove 18, a movable tube 20 is arranged in the inner cavity of the sleeve 1, a spring 16 and a second annular fixing plate 17 are sleeved on the outer edge of the movable tube 20 close to the top end, the second annular fixing plate 17 is fixedly connected with the outer edge of the movable tube 20, the bottom end of the spring 16 is fixedly connected with the second annular fixing plate 17, the top end of the spring 16 is fixedly connected with the bottom end of the fixed column 15, a lower annular limiting plate 12, an upper annular limiting plate 14 and two sealing rings 13 are sleeved on the outer edge of the movable tube 20 close to the bottom end, and the two sealing rings 13 are arranged up and down, the lower annular limiting plate 12 is positioned at the bottom of the sealing ring 13 below, the upper annular limiting plate 14 is positioned at the top of the sealing ring 13 above, the top of the lower annular limiting plate 12 is provided with a lower annular groove 21, the bottom of the upper annular limiting plate 14 is provided with an upper annular groove 22, the lower annular groove 21 and the upper annular groove 22 are respectively attached to the adjacent sealing rings 13, the lower annular limiting plate 12 is higher than the first water outlet 7, the second water outlet 23 is positioned above the first water outlet 7, the lower annular limiting plate 12 and the upper annular limiting plate 14 are both fixedly connected with the movable tube 20, the inner cavity of the sleeve 1 is fixedly connected with a conical sleeve 19, the conical sleeve 19 is positioned between the second annular fixing plate 17 and the upper annular limiting plate 14, the cross section of the side wall of the conical sleeve 19 is triangular, the bottom of the triangular structure of the conical sleeve 19 is fixedly connected with the sleeve 1, the longer waist of the triangular structure of the conical sleeve 19 faces downwards, the short waist of the 19 triangle-shaped structure of toper cover is upwards inclined, the first apopore 7 of a plurality of has been seted up to the outside edge of sleeve pipe 1, a plurality of second apopore 23 has been seted up jointly to the outside edge of sleeve pipe 1 and toper cover 19, the distance between two spacing grooves 18 is greater than the cross-section circle diameter of annular layer board 9, the cross-section circle diameter of annular layer board 9 is greater than sleeve pipe 1's cross-section circle diameter, the cross-section circle diameter of roof 6, annular layer board 9 and first annular fixed plate 10 all is less than the cross-section circle diameter of screwed pipe 4.
A method for using an oilfield injection well water distributor with adjustable flow comprises the following steps:
the method comprises the following steps: the sleeve 1 is connected with a water inlet end, certain pressure is applied to inlet water, the movable pipe 20 is pushed to move upwards along with the increase of water pressure, air above the movable pipe 20 is discharged from the limiting groove 18, the movable pipe 20 drives the second annular fixing plate 17, the upper annular limiting plate 14, the lower annular limiting plate 12 and the two sealing rings 13 to move upwards, and meanwhile the spring 16 is compressed;
step two: when the upper annular limiting plate 14, the lower annular limiting plate 12 and the two sealing rings 13 move upwards to the position above the first water outlet hole 7 along with the movable pipe 20, and the height of the lower annular limiting plate 12 is higher than that of the first water outlet hole 7, the water pressure is kept stable and inconvenient, and water is discharged from the first water outlet hole 7;
step three: when the water injection amount needs to be increased, the water pressure is increased firstly, the movable pipe 20 moves upwards along with the increase of the water pressure, the movable pipe 20 continues to drive the second annular fixing plate 17, the upper annular limiting plate 14, the lower annular limiting plate 12 and the two sealing rings 13 to move upwards, the sealing rings 13 move on the inner wall of the conical sleeve 19, the moving resistance of the movable pipe 20 is increased, the water pressure is increased continuously, meanwhile, the spring 16 continues to compress, and in the process, the water is discharged from the first water outlet hole 7 continuously;
step four: when the upper annular limiting plate 14, the lower annular limiting plate 12 and the two sealing rings 13 move upwards to the position above the second water outlet 23 along with the movable pipe 20, and the height of the lower annular limiting plate 12 is higher than that of the second water outlet 23, the water pressure is kept stable and inconvenient, water is discharged from the second water outlet 23, and at the moment, the water is discharged from the first water outlet 7 and the second water outlet 23, so that the water injection amount is increased;
step five: when the movable tube 20 needs to be installed, the movable tube 20, the fixed column 15, the spring 16, the threaded tube 4 and the second nut 3 are moved integrally, one end of the movable tube 20 is inserted from the top of the sleeve 1, then the movable tube 20 is moved downwards, when the fixed column 15 moves to the upper part of the sleeve 1, the limiting strips 11 on the two sides of the fixed column 15 rotate the limiting grooves 18 on the two sides of the inner cavity of the sleeve 1, then the fixed column 15 is pushed, the threaded tube 4 is sleeved with the outer edge of the sleeve 1, the first nut 2 is clamped by a tool, then the second nut 3 is screwed, so that the threaded pipe 4 moves downwards on the outer edge of the sleeve 1, the threaded pipe 4 drives the first annular fixing plate 10 to move, the first annular fixing plate 10 drives the annular supporting plate 9 to move, and then the fixed column 15 is driven to move until the annular supporting plate 9 moves to the top of the sleeve 1, so that the movable pipe 20 is installed.
The working principle is as follows: the sleeve 1 is connected with a water inlet end, a certain pressure is applied to the inlet water, the movable pipe 20 is pushed to move upwards along with the increase of the water pressure, the air above the movable pipe 20 is discharged from the limiting groove 18, the movable pipe 20 drives the second annular fixing plate 17, the upper annular limiting plate 14, the lower annular limiting plate 12 and the two sealing rings 13 to move upwards, the sealing rings 13 move on the inner wall of the conical sleeve 19, the moving resistance of the movable pipe 20 is increased, meanwhile, the springs 16 are compressed, when the upper annular limiting plate 14, the lower annular limiting plate 12 and the two sealing rings 13 move upwards along with the movable pipe 20 to the position above the first water outlet 7, the height of the lower annular limiting plate 12 is higher than that of the first water outlet 7, the water pressure is kept stable and inconvenient, water is discharged from the first water outlet 7, when the water injection amount needs to be increased, the water pressure is increased firstly, the movable pipe 20 moves upwards along with the increase of the water pressure, and the movable pipe 20 continues to drive the second annular fixing plate 17, The upper ring-shaped limiting plate 14, the lower ring-shaped limiting plate 12 and the two sealing rings 13 move upwards, the sealing rings 13 move on the inner wall of the conical sleeve 19, the moving resistance of the movable pipe 20 becomes large, the water pressure continues to be increased, meanwhile, the spring 16 continues to be compressed, in the process, moisture continues to be discharged from the first water outlet 7, when the upper ring-shaped limiting plate 14, the lower ring-shaped limiting plate 12 and the two sealing rings 13 move upwards along with the movable pipe 20 to the position above the second water outlet 23, and the height of the lower ring-shaped limiting plate 12 is higher than that of the second water outlet 23, so that the water pressure is kept stable and inconvenient, through the arrangement of the conical sleeve 19, when the movable pipe 20 moves to the position, the movable pipe 20 is prevented from moving upwards due to the smoothness of the inner wall of the sleeve 1, so that the movable pipe is stably fixed at a specified position, the stability of water injection is guaranteed, the moisture is discharged from the second water outlet 23, and at the moment, the moisture is discharged from the first water outlet 7 and the second water outlet 23, increasing the water injection amount, when the movable pipe 20 needs to be installed, moving the movable pipe 20, the fixed column 15, the spring 16, the threaded pipe 4 and the second nut 3 into a whole, firstly inserting one end of the movable pipe 20 from the top of the sleeve 1, then moving the movable pipe 20 downwards, when the fixed column 15 moves to the upper part of the sleeve 1, rotating the limiting strips 11 at two sides of the fixed column 15 to the limiting grooves 18 at two sides of the inner cavity of the sleeve 1, then pushing the fixed column 15, then sleeving the threaded pipe 4 with the outer edge of the sleeve 1, clamping the first nut 2 by a tool, then screwing the second nut 3, so that the threaded pipe 4 moves downwards at the outer edge of the inner cavity of the sleeve 1, the threaded pipe 4 drives the first annular fixed plate 10 to move, the first annular fixed plate 10 drives the annular supporting plate 9 to move, further drives the fixed column 15 to move, until the annular supporting plate 9 moves to the top of the sleeve 1, thereby completing the installation of the movable pipe 20, through setting up spring 16 at the inner wall of sleeve pipe 1, avoid corroding spring 16 because of the moist environment in the water injection well to this guarantee spring 16's life, through the setting of spacing groove 18 and spacing strip 11, the fixed column 15 of easy to assemble.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An oilfield injection well water distributor with adjustable flow rate, comprising a casing (1), characterized in that: the outer edge of the sleeve (1) is provided with a first nut (2) and a threaded pipe (4) in a sleeved mode near the top, the threaded pipe (4) is located above the first nut (2), the outer edge of the threaded pipe (4) is provided with a second nut (3) in a sleeved mode, an inner cavity of the threaded pipe (4) is provided with a fixed column (15), the outer edge of the fixed column (15) is provided with a limiting mechanism near the top end, two sides of the fixed column (15) are provided with butt joint positioning mechanisms, the inner cavity of the sleeve (1) is provided with a movable pipe (20), the outer edge of the movable pipe (20) is provided with a spring (16) and a second annular fixing plate (17) in a sleeved mode near the top end, the second annular fixing plate (17) is fixedly connected to the outer edge of the movable pipe (20), and the bottom end of the spring (16) is fixedly connected with the second annular fixing plate (17), the top end of the spring (16) is fixedly connected to the bottom end of the fixed column (15), the outer edge of the movable tube (20) close to the bottom end is sleeved with a lower annular limiting plate (12), an upper annular limiting plate (14) and two sealing rings (13), the two sealing rings (13) are arranged up and down, the lower annular limiting plate (12) is located at the bottom of the sealing ring (13) below, the upper annular limiting plate (14) is located at the top of the sealing ring (13) above, the lower annular limiting plate (12) and the upper annular limiting plate (14) are both fixedly connected with the movable tube (20), the inner cavity of the sleeve (1) is fixedly connected with a conical sleeve (19), the conical sleeve (19) is located between the second annular fixing plate (17) and the upper annular limiting plate (14), and the outer edge of the sleeve (1) is provided with a plurality of first water outlet holes (7), the outer edges of the sleeve (1) and the conical sleeve (19) are provided with a plurality of second water outlet holes (23) together.
2. The oilfield injection well water distributor with adjustable flow rate of claim 1, wherein: the outer edge of the outer side of the sleeve (1) is close to the top end and is provided with an external thread (8), the external thread (8) is in threaded connection with the threaded pipe (4), the first nut (2) is located below the external thread (8), and the first nut (2) is fixedly connected with the sleeve (1).
3. The oilfield injection well water distributor with adjustable flow rate of claim 1, wherein: the screw cap is characterized in that the second screw cap (3) is fixedly connected with the threaded pipe (4), the top of the second screw cap (3) is arranged at a height lower than that of the threaded pipe (4), and the bottom of the second screw cap (3) is arranged at a height lower than that of the threaded pipe (4).
4. The oilfield injection well water distributor with adjustable flow rate of claim 1, wherein: stop gear includes annular layer board (9) and first annular fixed plate (10), annular layer board (9) and first annular fixed plate (10) are all established and are established the outside edge of fixed column (15) and are close to top department, first annular fixed plate (10) are located the top of annular layer board (9), annular layer board (9) and fixed column (15) fixed connection, the inner chamber of first annular fixed plate (10) fixed connection at screwed pipe (4) is close to top department, the top fixedly connected with roof (6) of fixed column (15), roof (6) are located the top of first annular fixed plate (10), the top fixedly connected with diaphragm (5) of roof (6).
5. An oilfield injection well water distributor with adjustable flow rate according to claim 4, wherein: the butt joint positioning mechanism comprises a limiting strip (11), the limiting strip (11) is fixedly connected to the side wall of the fixing column (15), the limiting strip (11) is close to the bottom of the side wall of the fixing column (15), limiting grooves (18) are formed in the positions, close to the top ends, of the two sides of the inner cavity of the sleeve (1), and the limiting strip (11) is movably connected to the inner cavity of the adjacent limiting grooves (18).
6. The oilfield injection well water distributor with adjustable flow rate of claim 1, wherein: the lateral wall cross-section of toper cover (19) is triangle-shaped, just the end and sleeve pipe (1) fixed connection of toper cover (19) triangle-shaped structure, the longer waist of toper cover (19) triangle-shaped structure is down to one side, the shorter waist of toper cover (19) triangle-shaped structure is up to one side.
7. An oilfield injection well water distributor with adjustable flow rate according to claim 5, wherein: the distance between the two limiting grooves (18) is larger than the diameter of the section circle of the annular supporting plate (9), the diameter of the section circle of the annular supporting plate (9) is larger than the diameter of the section circle of the sleeve (1), and the diameters of the section circles of the top plate (6), the annular supporting plate (9) and the first annular fixing plate (10) are smaller than the diameter of the section circle of the threaded pipe (4).
8. The oilfield injection well water distributor with adjustable flow rate of claim 1, wherein: lower annular groove (21) have been seted up at the top of lower annular limiting plate (12), go up annular groove (22) have been seted up to the bottom of annular limiting plate (14), lower annular groove (21) and last annular groove (22) are laminated with adjacent sealing washer (13) respectively each other, setting up of lower annular limiting plate (12) highly is higher than first apopore (7), the top that is located first apopore (7) of second apopore (23).
9. Use of an oilfield injection well water distributor with adjustable flow according to any of claims 1-8, characterized in that it comprises the following steps:
the method comprises the following steps: the sleeve (1) is connected with a water inlet end, certain pressure is applied to inlet water, the movable pipe (20) is pushed to move upwards along with the increase of water pressure, air above the movable pipe (20) is discharged from the limiting groove (18), the movable pipe (20) drives the second annular fixing plate (17), the upper annular limiting plate (14), the lower annular limiting plate (12) and the two sealing rings (13) to move upwards, and meanwhile the spring (16) compresses;
step two: when the upper annular limiting plate (14), the lower annular limiting plate (12) and the two sealing rings (13) move upwards to the position above the first water outlet hole (7) along with the movable pipe (20), and the height of the lower annular limiting plate (12) is higher than that of the first water outlet hole (7), the water pressure is kept stable and inconvenient, and water is discharged from the first water outlet hole (7);
step three: when the water injection amount needs to be increased, the water pressure is increased firstly, the movable pipe (20) moves upwards along with the increase of the water pressure, the movable pipe (20) continues to drive the second annular fixing plate (17), the upper annular limiting plate (14), the lower annular limiting plate (12) and the two sealing rings (13) to move upwards, the sealing rings (13) move on the inner wall of the conical sleeve (19), the movement resistance of the movable pipe (20) is increased, the water pressure continues to be increased, meanwhile, the spring (16) continues to be compressed, and in the process, water continues to be discharged from the first water outlet hole (7);
step four: when the upper annular limiting plate (14), the lower annular limiting plate (12) and the two sealing rings (13) move upwards to the position above the second water outlet hole (23) along with the movable pipe (20), the height of the lower annular limiting plate (12) is higher than that of the second water outlet hole (23), the water pressure is kept stable and inconvenient, water is discharged from the second water outlet hole (23), at the moment, the water is discharged from the first water outlet hole (7) and the second water outlet hole (23), and the water injection amount is increased;
step five: when the movable pipe (20) needs to be installed, the movable pipe (20), the fixed column (15), the spring (16), the threaded pipe (4) and the second nut (3) are moved integrally, one end of the movable pipe (20) is inserted from the top of the sleeve (1) firstly, then the movable pipe (20) is moved downwards, when the fixed column (15) moves to the upper side of the sleeve (1), the limiting strips (11) on the two sides of the fixed column (15) rotate the limiting grooves (18) on the two sides of the inner cavity of the sleeve (1), then the fixed column (15) is pushed, then the threaded pipe (4) is sleeved with the outer edge of the sleeve (1), the first nut (2) is clamped firstly through a tool, then the second nut (3) is screwed, so that the threaded pipe (4) moves downwards on the outer edge of the sleeve (1), the threaded pipe (4) drives the first annular fixing plate (10) to move, and the first annular fixing plate (10) drives the annular supporting plate (9) to move, and then the fixed column (15) is driven to move until the annular supporting plate (9) moves to the top of the sleeve (1), so that the movable pipe (20) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111146248.5A CN113833441A (en) | 2021-09-28 | 2021-09-28 | Oilfield water injection well water distributor with adjustable flow and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111146248.5A CN113833441A (en) | 2021-09-28 | 2021-09-28 | Oilfield water injection well water distributor with adjustable flow and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113833441A true CN113833441A (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111146248.5A Withdrawn CN113833441A (en) | 2021-09-28 | 2021-09-28 | Oilfield water injection well water distributor with adjustable flow and use method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110916A (en) * | 2022-07-25 | 2022-09-27 | 中国石油化工股份有限公司 | Pressure-adjustable vortex tube |
| CN117536590A (en) * | 2023-12-07 | 2024-02-09 | 盐城市弘通石油机械有限公司 | Bridge type concentric water distributor |
-
2021
- 2021-09-28 CN CN202111146248.5A patent/CN113833441A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110916A (en) * | 2022-07-25 | 2022-09-27 | 中国石油化工股份有限公司 | Pressure-adjustable vortex tube |
| CN117536590A (en) * | 2023-12-07 | 2024-02-09 | 盐城市弘通石油机械有限公司 | Bridge type concentric water distributor |
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