CN112610197A - Anti-erosion nozzle for oil field stratum fracturing - Google Patents
Anti-erosion nozzle for oil field stratum fracturing Download PDFInfo
- Publication number
- CN112610197A CN112610197A CN202011487898.1A CN202011487898A CN112610197A CN 112610197 A CN112610197 A CN 112610197A CN 202011487898 A CN202011487898 A CN 202011487898A CN 112610197 A CN112610197 A CN 112610197A
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- Prior art keywords
- hollow pipe
- wall
- thread groove
- fracturing
- threaded connection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003628 erosive effect Effects 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims description 18
- 229910045601 alloy Inorganic materials 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 229920000459 Nitrile rubber Polymers 0.000 claims description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 21
- 238000000034 method Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 238000010556 emulsion polymerization method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0078—Nozzles used in boreholes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention discloses an erosion-resistant nozzle for fracturing of an oil field stratum, and particularly relates to the technical field of fracturing of the oil field stratum, wherein the technical scheme is as follows: the nozzle comprises a connecting device, a nozzle body, an anti-erosion device and a fixing device, wherein the nozzle body consists of an upper hollow pipe, a jet hollow pipe and a lower hollow pipe; the fixing device comprises a connecting device and a moving plate; the inner wall of the injection hollow pipe is provided with positioning holes in a square arrangement, the inner wall of the top end of the injection hollow pipe is provided with a first thread groove, the middle end of the first thread groove is connected with two groups of positioning holes at the top, the inner wall of the bottom end of the injection hollow pipe is provided with a third thread groove, and the middle end of the third thread groove is connected with two groups of positioning holes at the bottom, so that the invention has the beneficial effects that: the nozzle body is formed by respectively connecting the upper hollow pipe and the lower hollow pipe on the spraying hollow pipe in a threaded manner, so that the nozzle body is convenient to assemble and disassemble, the resources are saved, and the investment of cost is reduced.
Description
Technical Field
The invention relates to the field of fracturing of oil field stratums, in particular to an erosion-resistant nozzle for fracturing of oil field stratums.
Background
The fracturing is a method for making oil-gas layer form crack by utilizing hydraulic action in the course of oil production or gas production, also called hydraulic fracturing, and the fracturing truck is used in the course of oil-gas layer fracturing process, and can be used for extruding high-pressure large-discharge liquid with a certain viscosity into oil layer, after the oil layer is pressed into several cracks, the propping agent can be added to fill into the cracks so as to raise permeability of oil-gas layer and can raise water injection quantity or oil production quantity, and the nozzle is one of main components in the oil-gas layer fracturing process.
The prior art has the following defects: the existing nozzle is generally integrated, if one part is damaged, the whole nozzle cannot be used, so that not only can resource waste be caused, but also the cost is increased, the erosion resistance of the existing nozzle is poor, and the service life of the nozzle is influenced.
Therefore, it is necessary to develop an erosion resistant nozzle for fracturing an oilfield formation.
Disclosure of Invention
Therefore, the invention provides an erosion-resistant nozzle for oil field stratum fracturing, which solves the problems that the existing nozzle is integrated and the existing nozzle has poor erosion resistance by connecting an erosion-resistant device in the inner walls of a jet hollow pipe and a lower hollow pipe in a threaded manner, then connecting an upper hollow pipe and the lower hollow pipe at the upper end and the lower end of the jet hollow pipe in a threaded manner respectively, and reinforcing the upper hollow pipe and the lower hollow pipe through a fixing device after fixing.
In order to achieve the above purpose, the invention provides the following technical scheme: an erosion-resistant nozzle for fracturing of an oilfield stratum comprises a connecting device, a nozzle body, an erosion-resistant device and a fixing device, wherein the nozzle body consists of an upper hollow pipe, a jet hollow pipe and a lower hollow pipe;
the fixing device comprises a connecting device and a moving plate;
the inner wall of the injection hollow pipe is provided with positioning holes in a square arrangement mode, the inner wall of the top end of the injection hollow pipe is provided with a first thread groove, the middle end of the first thread groove is connected with two groups of positioning holes at the top, the inner wall of the bottom end of the injection hollow pipe is provided with a third thread groove, the middle end of the third thread groove is connected with two groups of positioning holes at the bottom, and the inner walls of two ends of the middle part of the injection hollow pipe are provided;
a first small hollow pipe is fixedly installed at the bottom of the upper hollow pipe, fixing holes are formed in two ends of the inner wall of the first small hollow pipe, and the first small hollow pipe is in threaded connection with the inner wall of the thread groove;
a small hollow pipe II is fixedly installed at the top of the lower hollow pipe, the two ends of the inner wall of the small hollow pipe II are provided with the fixing holes, and the small hollow pipe II is in threaded connection with the inner wall of the thread groove III;
a telescopic rod is fixedly installed at the middle end of the outer wall of the movable plate, the telescopic rod is in threaded connection with the inner wall of the threaded groove II, and a spring is inserted in the inner wall of the telescopic rod;
the connecting device comprises a first baffle, round rods are connected with two ends of the inner wall of the movable plate in a threaded manner, the output ends of the round rods are inserted into the positioning holes and the inner wall of the fixed hole, the first baffle is fixedly installed at one end of the outer wall of the round rods, and a square plate is fixedly installed at the middle end of the outer wall of the first baffle;
the erosion resisting device is composed of hard alloy and a nitrile rubber layer, and the nitrile rubber layer is arranged on the circumference of the inner wall of the hard alloy.
Preferably, the connecting device further comprises a second baffle, one end of the outer wall of the round rod is fixedly installed on the second baffle, the second baffle is fixedly installed at two ends of the outer wall of the moving plate through hexagon socket head cap screws, and two ends of the inner wall of the moving plate are connected with the round rod in an inserting mode.
Preferably, the top of the injection hollow pipe is in threaded connection with the upper hollow pipe.
Preferably, the bottom of the spraying hollow pipe is in threaded connection with the lower hollow pipe.
Preferably, the top end of the hard alloy is in threaded connection with the inner wall of the injection hollow pipe.
Preferably, the bottom of the hard alloy is in threaded connection with the inner wall of the lower hollow pipe.
Preferably, a cylinder is fixedly arranged at the middle end of the outer wall of the moving plate.
Preferably, the moving plates are arranged in two groups.
The invention has the beneficial effects that:
1. the nozzle body is formed by respectively connecting the upper hollow pipe and the lower hollow pipe on the spraying hollow pipe in a threaded manner, so that the assembly and disassembly are convenient, the resources are saved, and the investment of cost is reduced;
2. the erosion resisting device is connected in the jet hollow pipe and the lower hollow pipe in a threaded manner, so that the erosion resisting performance is improved, and the service life of the nozzle is prolonged;
3. the connection between the injection hollow pipe and the upper hollow pipe and between the injection hollow pipe and the lower hollow pipe is reinforced through the fixing device, and the effect of improving the connection stability is achieved.
Drawings
FIG. 1 is a schematic front view of the structure of embodiment 1 provided by the present invention;
FIG. 2 is an enlarged schematic view of the front view area A of the structure of embodiment 1 provided by the present invention;
FIG. 3 is a schematic top view of a jet hollow tube provided by the present invention;
fig. 4 is a schematic front view of an explosive structure according to example 1 of the present invention;
FIG. 5 is a schematic front view of the structure of embodiment 2 provided by the present invention;
fig. 6 is an enlarged schematic view of the front view B region of the structure of embodiment 2 provided by the present invention.
In the figure: the nozzle comprises a connecting device 1, a first baffle plate 11, a square plate 12, a second baffle plate 13, a hexagon socket head cap screw 14, a nozzle body 2, an upper hollow pipe 3, a first small hollow pipe 31, a fixing hole 32, an injection hollow pipe 4, a positioning hole 41, a first thread groove 42, a second thread groove 43, a third thread groove 44, a lower hollow pipe 5, a second small hollow pipe 51, an anti-erosion device 6, a hard alloy 61, a nitrile rubber layer 62, a fixing device 7, a moving plate 71, a round rod 72, an expansion rod 73, a spring 74 and a cylinder 75.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
further, the nozzle body 2 is composed of an upper hollow pipe 3, a spraying hollow pipe 4 and a lower hollow pipe 5.
Further, the fixing device 7 includes a connecting device 1 and a moving plate 71.
Furthermore, the inner wall of the injection hollow tube 4 is provided with positioning holes 41 in a square arrangement, the inner wall of the top end of the injection hollow tube 4 is provided with a first thread groove 42, the middle end of the first thread groove 42 is connected with the two groups of positioning holes 41 at the top, the inner wall of the bottom end of the injection hollow tube 4 is provided with a third thread groove 44, the middle end of the third thread groove 44 is connected with the two groups of positioning holes 41 at the bottom, and the inner walls of the two ends of the middle part of the injection hollow tube 4 are provided.
Further, a small hollow pipe 31 is fixedly installed at the bottom of the upper hollow pipe 3, fixing holes 32 are formed in two ends of the inner wall of the small hollow pipe 31, the small hollow pipe 31 is in threaded connection with the inner wall of the thread groove 42, specifically, the thread groove 42 has a fixing effect on the small hollow pipe 31, and the threaded connection of the thread groove 42 and the small hollow pipe 31 has a fixing effect on the connection of the upper hollow pipe 3 and the injection hollow pipe 4.
Further, a small hollow tube II 51 is fixedly installed at the top of the lower hollow tube 5, the fixing holes 32 are formed in two ends of the inner wall of the small hollow tube II 51, the small hollow tube II 51 is in threaded connection with the inner wall of the thread groove III 44, specifically, the thread groove III 44 has a fixing effect on the small hollow tube II 51, and the threaded connection between the thread groove III 44 and the small hollow tube II 51 has a fixing effect on the connection between the lower hollow tube 5 and the injection hollow tube 4.
Further, movable plate 71 outer wall middle-end fixed mounting telescopic link 73, telescopic link 73 threaded connection be in two 43 inner walls of thread groove, telescopic link 73 inner wall grafting spring 74, it is concrete, movable plate 71 has the effect of stretching spring 74 through telescopic link 73, two 43 thread grooves have the fixed action to telescopic link 73, and spring 74 has the effect of producing the elasticity through taking place the deformation, and spring 74 has the effect that drives movable plate 71 and remove to the inboard through elasticity.
Further, the connecting device 1 comprises a first baffle 11, two ends of the inner wall of the moving plate 71 are in threaded connection with round rods 72, the output ends of the round rods 72 are inserted into the positioning holes 41 and the inner wall of the fixing hole 32, one end of the outer wall of the round rods 72 is fixedly provided with the first baffle 11, the middle end of the outer wall of the first baffle 11 is fixedly provided with the square plate 12, specifically, the moving plate 71 has a fixing effect on the round rods 72, the round rods 72 are inserted into the positioning holes 41 and the fixing hole 32 and have a reinforcing effect on the upper hollow tube 3 and the lower hollow tube 5, the first baffle 11 prevents the round rods 72 from falling off from the moving plate 71, and the square plate 12 has an effect of driving the round rods 72 to rotate through the first baffle 11.
Further, the erosion resistant device 6 is composed of a hard alloy 61 and a nitrile rubber layer 62, the nitrile rubber layer 62 is arranged on the circumference of the inner wall of the hard alloy 61, specifically, the erosion resistant device 6 has an effect of improving erosion resistance of the nozzle body 2, the hard alloy 61 is an alloy material which is made of a hard compound of refractory metals and bonding metals through a powder metallurgy process, the nitrile rubber layer 62 is made of butadiene and acrylonitrile through an emulsion polymerization method, the nitrile rubber is mainly produced through a low-temperature emulsion polymerization method, oil resistance is excellent, abrasion resistance is high, heat resistance is good, adhesion force is strong, and the erosion resistant device 6 has an effect of spraying liquid.
Further, the top of the injection hollow pipe 4 is in threaded connection with the upper hollow pipe 3, specifically, the injection hollow pipe 4 has a fixing effect on the upper hollow pipe 3, and the upper hollow pipe 3 has a liquid spraying effect.
Further, the bottom of the injection hollow pipe 4 is in threaded connection with the lower hollow pipe 5, specifically, the injection hollow pipe 4 has a fixing effect on the lower hollow pipe 5, and the lower hollow pipe 5 has an effect of connecting an external object.
Further, the top end of the hard alloy 61 is connected to the inner wall of the spraying hollow tube 4 in a threaded manner, specifically, the spraying hollow tube 4 has a fixing effect on the top end of the hard alloy 61, and the hard alloy 61 has a liquid spraying effect.
Further, the bottom of the hard alloy 61 is in threaded connection with the inner wall of the lower hollow tube 5, and specifically, the lower hollow tube 5 has a fixing effect on the bottom end of the hard alloy 61.
Further, a cylinder 75 is fixedly installed at the middle end of the outer wall of the moving plate 71, and specifically, the cylinder 75 has an effect of facilitating driving the moving plate 71 to move.
Further, the moving plates 71 are provided in two sets.
The using process of the invention is as follows: when the invention is used, the telescopic rod 73 is inserted into the second thread groove 43, after the telescopic rod 73 is inserted, the moving plate 71 is rotated, then the moving plate 71 drives the telescopic rod 73 to rotate, so that the telescopic rod 73 is in threaded connection with the second thread groove 43, when the telescopic rod 73 is in threaded connection with the second thread groove 43, the thread groove (not marked in the figure) on the moving plate 71 is aligned with the positioning hole 41, after the alignment, the round rod 72 is inserted into the thread groove (not marked in the figure), after the insertion, the square plate 12 is rotated, then the round rod 72 is driven to rotate by the first baffle plate 11, the rotating round rod 72 is inserted into the positioning hole 41 until the first baffle plate 11 is attached to the moving plate 71, so that the round rod 72 is fixed on the moving plate 71, after the fixing plate 71 is pulled outwards by the cylindrical column 75, then the moving plate 71 drives the spring 74 to extend by the telescopic rod 73, and the moving plate 71 drives the round rod 72 to move outwards at the, until the round rod 72 is positioned at one end of the first thread groove 42 and the third thread groove 44, then the first small hollow tube 31 is inserted into the first thread groove 42, after the insertion, the upper hollow tube 3 is rotated, then the upper hollow tube 3 drives the first small hollow tube 31 to rotate until the fixing hole 32 on the first small hollow tube 31 is aligned with the positioning hole 41, so that the upper hollow tube 3 is fixed, after the fixing, the top end of the erosion resisting device 6 is inserted into the injection hollow tube 4, and the erosion resisting device 6 is rotated until the erosion resisting device 6 is in threaded connection with the inner wall of the injection hollow tube 4, so that the injection hollow tube 4 is fixed against the erosion resisting device 6, then the second small hollow tube 51 is inserted into the third thread groove 44, after the insertion, the lower hollow tube 5 is rotated, then the lower hollow tube 5 drives the second small hollow tube 51 to rotate until the fixing hole 32 on the second small hollow tube 51 is aligned with the positioning hole 41, the second small hollow tube 51 is fixed, when the second small hollow tube 51 is screwed in the third thread groove 44, the bottom end of the erosion resisting device 6 is screwed in the lower hollow tube 5, so that the erosion resisting device 6 is fixed again, after the second small hollow tube 51 is fixed, the cylinder 75 is loosened, then the spring 74 drives the moving plate 71 to move inwards through elasticity, then the moving plate 71 drives the round rod 72 to move inwards, the round rod 72 moving inwards is inserted into the fixing hole 32, so that the upper hollow tube 3 and the lower hollow tube 5 are reinforced, after the reinforcement, the lower hollow tube 5 is connected with an external object, so that the formed nozzle body 2 is put into use, wherein the round rod 72 is fixed on the moving plate 71 through the first baffle plate 11 and the square plate 12, and the installation is convenient.
further, connecting device 1 still includes two 13 baffles, circle pole 72 outer wall one end fixed mounting two 13 baffles, two 13 baffles pass through hexagon socket head cap screw 14 fixed mounting and are in movable plate 71 outer wall both ends, peg graft at movable plate 71 inner wall both ends circle pole 72, it is specific, circle pole 72 has the fixed action to two 13 baffles, and two 13 baffles have the effect of fixing on movable plate 71 through hexagon socket head cap screw 14.
The using process of the invention is as follows: when the invention is used, the telescopic rod 73 is inserted into the second thread groove 43, after the telescopic rod 73 is inserted, the moving plate 71 is rotated, then the moving plate 71 drives the telescopic rod 73 to rotate, so that the telescopic rod 73 is in threaded connection with the second thread groove 43, when the telescopic rod 73 is in threaded connection with the second thread groove 43, a through hole (not marked in the figure) in the moving plate 71 is aligned with the positioning hole 41, after the through hole is aligned, the round rod 72 is inserted into the through hole (not marked in the figure) until the second baffle 13 is attached to the moving plate 71, after the attachment, the round rod 72 is fixed on the moving plate 71 through the hexagon socket head cap screw 14, after the fixation, the moving plate 71 is pulled outwards through the cylinder 75, then the moving plate 71 drives the spring 74 to extend through the telescopic rod 73, and the moving plate 71 also drives the round rod 72 to move outwards at the same time until the round rod 72 is positioned at one end, then, the first small hollow tube 31 is inserted into the first thread groove 42, after the first small hollow tube 31 is inserted, the upper hollow tube 3 is rotated, then the upper hollow tube 3 drives the first small hollow tube 31 to rotate until the fixing hole 32 on the first small hollow tube 31 is aligned with the positioning hole 41, so that the upper hollow tube 3 is fixed, after the fixing, the top end of the erosion resisting device 6 is inserted into the injection hollow tube 4, the erosion resisting device 6 is rotated until the erosion resisting device 6 is in threaded connection with the inner wall of the injection hollow tube 4, so that the injection hollow tube 4 is fixed against the erosion resisting device 6, then the second small hollow tube 51 is inserted into the third thread groove 44, after the insertion, the lower hollow tube 5 is rotated, then the second small hollow tube 51 is driven to rotate until the fixing hole 32 on the second small hollow tube 51 is aligned with the positioning hole 41, so that the second small hollow tube 51 is fixed, when the small hollow tube II 51 is screwed in the thread groove III 44, the bottom end of the erosion resisting device 6 is screwed in the lower hollow tube 5, so that the erosion resisting device 6 is fixed again, after the small hollow tube II is fixed, the cylinder 75 is loosened, then the spring 74 drives the moving plate 71 to move inwards through elasticity, then the moving plate 71 drives the round rod 72 to move inwards, the round rod 72 moving inwards is inserted into the fixing hole 32, so that the upper hollow tube 3 and the lower hollow tube 5 are reinforced, and after the reinforcement, the lower hollow tube 5 is connected with an external object, so that the formed nozzle body 2 is put into use, wherein the round rod 72 is fixed on the moving plate 71 through the baffle II 13 and the hexagon socket screw 14, and the stability is improved.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a nozzle that is used for anti erosion of oil field stratum fracturing, includes connecting device (1), nozzle body (2), anti erosion device (6) and fixing device (7), its characterized in that: the nozzle body (2) consists of an upper hollow pipe (3), a spraying hollow pipe (4) and a lower hollow pipe (5);
the fixing device (7) comprises a connecting device (1) and a moving plate (71);
positioning holes (41) are formed in the inner wall of the injection hollow pipe (4) in a square arrangement mode, a first thread groove (42) is formed in the inner wall of the top end of the injection hollow pipe (4), the middle end of the first thread groove (42) is connected with two groups of positioning holes (41) at the top, a third thread groove (44) is formed in the inner wall of the bottom end of the injection hollow pipe (4), the middle end of the third thread groove (44) is connected with two groups of positioning holes (41) at the bottom, and a second thread groove (43) is formed in the inner wall of two ends of the;
a first small hollow pipe (31) is fixedly installed at the bottom of the upper hollow pipe (3), fixing holes (32) are formed in two ends of the inner wall of the first small hollow pipe (31), and the first small hollow pipe (31) is in threaded connection with the inner wall of the first thread groove (42);
a second small hollow pipe (51) is fixedly installed at the top of the lower hollow pipe (5), the fixing holes (32) are formed in two ends of the inner wall of the second small hollow pipe (51), and the second small hollow pipe (51) is in threaded connection with the inner wall of the third thread groove (44);
an expansion rod (73) is fixedly installed at the middle end of the outer wall of the moving plate (71), the expansion rod (73) is in threaded connection with the inner wall of the second thread groove (43), and a spring (74) is inserted into the inner wall of the expansion rod (73);
the connecting device (1) comprises a first baffle plate (11), two ends of the inner wall of the moving plate (71) are in threaded connection with round rods (72), the output ends of the round rods (72) are inserted into the positioning holes (41) and the inner wall of the fixing hole (32), one end of the outer wall of each round rod (72) is fixedly provided with the first baffle plate (11), and the middle end of the outer wall of the first baffle plate (11) is fixedly provided with a square plate (12);
the anti-erosion device (6) is composed of a hard alloy (61) and a nitrile rubber layer (62), wherein the nitrile rubber layer (62) is arranged on the circumference of the inner wall of the hard alloy (61).
2. The erosion resistant nozzle for fracturing an oilfield formation according to claim 1, wherein: connecting device (1) still includes baffle two (13), pole (72) outer wall one end fixed mounting baffle two (13), baffle two (13) are in through hexagon socket head cap screw (14) fixed mounting moving plate (71) outer wall both ends, peg graft at moving plate (71) inner wall both ends pole (72).
3. The erosion resistant nozzle for fracturing an oilfield formation according to claim 1, wherein: the top of the injection hollow pipe (4) is in threaded connection with the upper hollow pipe (3).
4. The erosion resistant nozzle for fracturing an oilfield formation according to claim 1, wherein: the bottom of the injection hollow pipe (4) is in threaded connection with the lower hollow pipe (5).
5. The erosion resistant nozzle for fracturing an oilfield formation according to claim 1, wherein: the top end of the hard alloy (61) is in threaded connection with the inner wall of the jet hollow pipe (4).
6. The erosion resistant nozzle for fracturing an oilfield formation according to claim 1, wherein: the bottom of the hard alloy (61) is in threaded connection with the inner wall of the lower hollow pipe (5).
7. The erosion resistant nozzle for fracturing an oilfield formation according to claim 1, wherein: and a cylinder (75) is fixedly arranged at the middle end of the outer wall of the moving plate (71).
8. The erosion resistant nozzle for fracturing an oilfield formation according to claim 1, wherein: the moving plates (71) are arranged in two groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487898.1A CN112610197B (en) | 2020-12-16 | 2020-12-16 | Erosion-resistant nozzle for oilfield stratum fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487898.1A CN112610197B (en) | 2020-12-16 | 2020-12-16 | Erosion-resistant nozzle for oilfield stratum fracturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112610197A true CN112610197A (en) | 2021-04-06 |
| CN112610197B CN112610197B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011487898.1A Active CN112610197B (en) | 2020-12-16 | 2020-12-16 | Erosion-resistant nozzle for oilfield stratum fracturing |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020195248A1 (en) * | 2001-05-15 | 2002-12-26 | Ingram Gary D. | Fracturing port collar for wellbore pack-off system, and method for using same |
| CN201241674Y (en) * | 2008-07-16 | 2009-05-20 | 中国石油天然气集团公司 | Backwash-proof erosion structure of water power spray sand perforator |
| CN202152673U (en) * | 2011-07-08 | 2012-02-29 | 中国石油天然气股份有限公司 | Anti-erosion nozzle |
| WO2016172736A1 (en) * | 2015-04-27 | 2016-10-27 | Tejas Research & Engineering, Llc | Dual barrier injection valve with a variable orifice |
| CN206280059U (en) * | 2016-12-16 | 2017-06-27 | 华鼎鸿基石油工程技术(北京)有限公司 | Fluid erosion prevention exempts from sand card fracturing sliding bush |
| CN212143646U (en) * | 2020-04-10 | 2020-12-15 | 滁州贝安智能机器人科技有限公司 | Spray head convenient for angle adjustment and used for paint and rust removal intelligent cleaning robot |
-
2020
- 2020-12-16 CN CN202011487898.1A patent/CN112610197B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020195248A1 (en) * | 2001-05-15 | 2002-12-26 | Ingram Gary D. | Fracturing port collar for wellbore pack-off system, and method for using same |
| CN201241674Y (en) * | 2008-07-16 | 2009-05-20 | 中国石油天然气集团公司 | Backwash-proof erosion structure of water power spray sand perforator |
| CN202152673U (en) * | 2011-07-08 | 2012-02-29 | 中国石油天然气股份有限公司 | Anti-erosion nozzle |
| WO2016172736A1 (en) * | 2015-04-27 | 2016-10-27 | Tejas Research & Engineering, Llc | Dual barrier injection valve with a variable orifice |
| CN206280059U (en) * | 2016-12-16 | 2017-06-27 | 华鼎鸿基石油工程技术(北京)有限公司 | Fluid erosion prevention exempts from sand card fracturing sliding bush |
| CN212143646U (en) * | 2020-04-10 | 2020-12-15 | 滁州贝安智能机器人科技有限公司 | Spray head convenient for angle adjustment and used for paint and rust removal intelligent cleaning robot |
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| CN112610197B (en) | 2023-11-24 |
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