CN112610197B - Erosion-resistant nozzle for oilfield stratum fracturing - Google Patents
Erosion-resistant nozzle for oilfield stratum fracturing Download PDFInfo
- Publication number
- CN112610197B CN112610197B CN202011487898.1A CN202011487898A CN112610197B CN 112610197 B CN112610197 B CN 112610197B CN 202011487898 A CN202011487898 A CN 202011487898A CN 112610197 B CN112610197 B CN 112610197B
- Authority
- CN
- China
- Prior art keywords
- wall
- hollow tube
- injection
- hollow pipe
- erosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003628 erosive effect Effects 0.000 title claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 42
- 239000007924 injection Substances 0.000 claims abstract description 42
- 239000000956 alloy Substances 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 229920000459 Nitrile rubber Polymers 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 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
- 238000000605 extraction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification 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
- 230000009286 beneficial effect Effects 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
- 238000010586 diagram Methods 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
- 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
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Nozzles (AREA)
Abstract
The invention discloses an erosion-resistant nozzle for oilfield stratum fracturing, and particularly relates to the technical field of oilfield stratum fracturing, which comprises the following technical scheme: the anti-erosion device 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 moving plate; the inner wall of the injection hollow tube is square, positioning holes are formed in the inner wall of the top end of the injection hollow tube, a first threaded groove is formed in the inner wall of the top end of the injection hollow tube, the middle end of the first threaded groove is connected with two groups of positioning holes at the top, a third threaded groove is formed in the inner wall of the bottom end of the injection hollow tube, and the middle end of the third threaded groove is connected with two groups of positioning holes at the bottom. The nozzle body is formed by respectively and threadedly connecting the upper hollow pipe and the lower hollow pipe on the injection hollow pipe, so that the assembly and the disassembly are convenient, the resources are saved, and the investment of the cost is reduced.
Description
Technical Field
The invention relates to the field of oilfield stratum fracturing, in particular to an erosion-resistant nozzle for oilfield stratum fracturing.
Background
The fracturing is a method for forming cracks on hydrocarbon reservoirs by utilizing the hydraulic action in the oil extraction or gas extraction process, which is also called hydraulic fracturing, a fracturing truck is used in the hydrocarbon reservoir fracturing process, high-pressure large-discharge liquid with certain viscosity is extruded into an oil layer, after a plurality of cracks are extruded out of the oil layer, propping agents are added to fill the cracks, so that the permeability of the hydrocarbon reservoir is improved, the water injection amount or the oil yield is increased, and a nozzle is one of main components in the hydrocarbon reservoir fracturing process.
The prior art has the following defects: the existing nozzle is generally integrated, if one part of the existing nozzle is damaged, the whole nozzle cannot be used, so that not only is the resource wasted, but also the cost input is increased, and the service life of the nozzle is influenced due to poor erosion resistance of the existing nozzle.
Accordingly, it is desirable to invent an erosion resistant nozzle for fracturing an oilfield formation.
Disclosure of Invention
The invention provides an anti-erosion nozzle for oilfield stratum fracturing, which solves the problems that the existing nozzle is integrated and the erosion resistance of the existing nozzle is poor by connecting an anti-erosion device in the inner walls of a jet hollow pipe and a lower hollow pipe in a threaded manner, connecting an upper hollow pipe and a lower hollow pipe at the upper end and the lower end of the jet hollow pipe in a threaded manner respectively, fixing the upper hollow pipe and the lower hollow pipe, and reinforcing the fixed upper hollow pipe and the fixed lower hollow pipe by a fixing device.
In order to achieve the above object, the present invention provides the following technical solutions: the anti-erosion nozzle for oilfield stratum fracturing 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 moving plate;
the inner wall of the injection hollow pipe is square, positioning holes are formed in the inner wall of the top end of the injection hollow pipe, a first thread groove is formed in the inner wall of the top end of the injection hollow pipe, the middle end of the first thread groove is connected with two groups of positioning holes on the top, a third thread groove is formed in the inner wall of the bottom end of the injection hollow pipe, the middle end of the third thread groove is connected with two groups of positioning holes on the bottom, and a second thread groove is formed in the inner walls of the two ends of the middle part of the injection hollow pipe;
the bottom of the upper hollow tube is fixedly provided with a small hollow tube I, two ends of the inner wall of the small hollow tube I are provided with fixing holes, and the small hollow tube I is in threaded connection with the inner wall of the thread groove I;
the top of the lower hollow tube is fixedly provided with a second small hollow tube, two ends of the inner wall of the second small hollow tube are provided with fixing holes, and the second small hollow tube is in threaded connection with the inner wall of the thread groove III;
the middle end of the outer wall of the movable plate is fixedly provided with a telescopic rod, the telescopic rod is in threaded connection with the inner wall of the threaded groove II, and the inner wall of the telescopic rod is inserted with a spring;
the connecting device comprises a first baffle, two ends of the inner wall of the movable plate are in threaded connection with round rods, the output ends of the round rods are inserted into the positioning holes and the inner wall of the fixed holes, one end of the outer wall of each round rod is fixedly provided with the first baffle, and the middle end of the outer wall of each baffle is fixedly provided with a square plate;
the anti-erosion device consists of hard alloy and a nitrile rubber layer, and the circumference of the inner wall of the hard alloy is provided with the nitrile rubber layer.
Preferably, the connecting device further comprises a second baffle plate, one end of the outer wall of the round rod is fixedly provided with the second baffle plate, the second baffle plate is fixedly provided with two ends of the outer wall of the movable plate through inner hexagon screws, and two ends of the inner wall of the movable plate are spliced with the round rod.
Preferably, the top of the injection hollow tube is in threaded connection with the upper hollow tube.
Preferably, the bottom of the injection hollow tube is in threaded connection with the lower hollow tube.
Preferably, the hard alloy top end is in threaded connection with the inner wall of the injection hollow tube.
Preferably, the hard alloy bottom is in threaded connection with the inner wall of the lower hollow tube.
Preferably, the middle end of the outer wall of the movable plate is fixedly provided with a cylinder.
Preferably, the moving plates are arranged in two groups.
The beneficial effects of the invention are as follows:
1. the nozzle body is formed by respectively connecting an upper hollow pipe and a lower hollow pipe on the injection hollow pipe in a threaded manner, so that the assembly and the disassembly are convenient, the resources are saved, and the investment of the cost is reduced;
2. the anti-erosion device is connected in the injection hollow pipe and the lower hollow pipe in a threaded manner, so that not only is the anti-erosion performance improved, but also the service life of the nozzle is prolonged;
3. the connection between the injection hollow pipe and the upper hollow pipe and the lower hollow pipe is reinforced by the fixing device, so that the connection stability is improved.
Drawings
FIG. 1 is a schematic front view of the structure of embodiment 1;
FIG. 2 is an enlarged schematic view of the front A area of the structure of example 1 according to the present invention;
FIG. 3 is a schematic top view of a hollow jet pipe according to the present invention;
FIG. 4 is a schematic front view of an explosive structure of example 1 according to the present invention;
FIG. 5 is a schematic front view of the structure of embodiment 2 according to the present invention;
fig. 6 is an enlarged schematic diagram of region B in front view of the structure of example 2 according to the present invention.
In the figure: the connecting device 1, the first baffle plate 11, the square plate 12, the second baffle plate 13, the inner hexagon screw 14, the nozzle body 2, the upper hollow tube 3, the small hollow tube 31, the fixing hole 32, the injection hollow tube 4, the positioning hole 41, the first thread groove 42, the second thread groove 43, the third thread groove 44, the lower hollow tube 5, the small hollow tube 51, the anti-erosion device 6, the hard alloy 61, the nitrile rubber layer 62, the fixing device 7, the moving plate 71, the round rod 72, the telescopic rod 73, the spring 74 and the cylinder 75.
Description of the embodiments
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Embodiment 1 referring to fig. 1-4, the invention provides an erosion-resistant nozzle for fracturing an oilfield stratum, which comprises a connecting device 1, a nozzle body 2, an erosion-resistant device 6 and a fixing device 7;
further, the nozzle body 2 is composed of an upper hollow tube 3, a spray hollow tube 4 and a lower hollow tube 5.
Further, the fixing means 7 comprise a moving plate 71.
Further, the inner wall of the injection hollow tube 4 is provided with positioning holes 41 in 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 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 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 with a second thread groove 43.
Further, the first small hollow tube 31 is fixedly installed at the bottom of the upper hollow tube 3, fixing holes 32 are formed in two ends of the inner wall of the first small hollow tube 31, the first small hollow tube 31 is in threaded connection with the inner wall of the first threaded groove 42, specifically, the first threaded groove 42 has a fixing effect on the first small hollow tube 31, and the threaded connection of the first threaded groove 42 and the first small hollow tube 31 has a fixing effect on the connection of the upper hollow tube 3 and the injection hollow tube 4.
Further, a second small hollow tube 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 second small hollow tube 51, the second small hollow tube 51 is in threaded connection with the inner wall of a third threaded groove 44, specifically, the third threaded groove 44 has a fixing effect on the second small hollow tube 51, and the threaded connection of the third threaded groove 44 and the second small hollow tube 51 has a fixing effect on the connection of the lower hollow tube 5 and the injection hollow tube 4.
Further, the middle end of the outer wall of the moving plate 71 is fixedly provided with a telescopic rod 73, the telescopic rod 73 is in threaded connection with the inner wall of the second threaded groove 43, the inner wall of the telescopic rod 73 is inserted with a spring 74, specifically, the moving plate 71 has the function of stretching the spring 74 through the telescopic rod 73, the second threaded groove 43 has the fixing function on the telescopic rod 73, the spring 74 has the function of generating elastic force through deformation, and the spring 74 has the function of driving the moving plate 71 to move towards the inner side through the elastic force.
Further, the connecting device 1 includes a first baffle 11, two ends of the inner wall of the moving plate 71 are connected with a round rod 72 in a threaded manner, the output end of the round rod 72 is inserted into the positioning hole 41 and the inner wall of the fixing hole 32, one end of the outer wall of the round rod 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 rod 72, the round rod 72 is inserted into the positioning hole 41 and the fixing hole 32 to have a reinforcing effect on the upper hollow tube 3 and the lower hollow tube 5, the first baffle 11 has a function of preventing the round rod 72 from falling off from the moving plate 71, and the square plate 12 has a function of driving the round rod 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 the effect of improving the erosion resistance of the nozzle body 2, the hard alloy 61 is an alloy material made of hard compounds 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, the oil resistance is excellent, the wear resistance is high, the heat resistance is good, the bonding force is strong, and the erosion-resistant device 6 has the effect of spraying liquid.
Further, the top of the ejector hollow tube 4 is screwed with the upper hollow tube 3, specifically, the ejector hollow tube 4 has a fixing function on the upper hollow tube 3, and the upper hollow tube 3 has a function of ejecting liquid.
Further, the bottom of the hollow injection tube 4 is screwed to the lower hollow tube 5, specifically, the hollow injection tube 4 has a fixing function on the lower hollow tube 5, and the lower hollow tube 5 has a function of connecting an external object.
Further, the top end of the cemented carbide 61 is screwed on the inner wall of the injection hollow tube 4, specifically, the injection hollow tube 4 has a fixing function on the top end of the cemented carbide 61, and the cemented carbide 61 has a function of injecting liquid.
Further, the bottom of the cemented carbide 61 is screwed on 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 cemented carbide 61.
Further, a cylinder 75 is fixedly mounted on the middle end of the outer wall of the moving plate 71, and specifically, the cylinder 75 has the function of conveniently driving the moving plate 71 to move.
Further, the moving plates 71 are provided in two groups.
The application process of the invention is as follows: in the use of the invention, the telescopic rod 73 is inserted into the threaded groove two 43, after the telescopic rod 73 is inserted, the movable plate 71 is rotated, then the movable plate 71 drives the telescopic rod 73 to rotate, so that the telescopic rod 73 is in threaded connection with the threaded groove two 43, when the telescopic rod 73 is in threaded connection with the threaded groove two 43, a threaded groove (not marked in the figure) on the movable plate 71 is aligned with the positioning hole 41, after the telescopic rod 73 is inserted into the threaded groove (not marked in the figure), after the telescopic rod is inserted, the square plate 12 is rotated, then the square plate 12 drives the round rod 72 to rotate through the baffle plate one 11, the rotating round rod 72 is inserted into the positioning hole 41 until the baffle plate one 11 is attached to the movable plate 71, so that the round rod 72 is fixed on the movable plate 71, after the fixing, the movable plate 71 is pulled outwards through the cylinder 75, then the movable plate 71 drives the spring 74 to stretch through the telescopic rod 73, 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 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 insertion, the upper hollow tube 3 is rotated, then the first small hollow tube 31 is driven to rotate by the upper hollow tube 3 until the fixing hole 32 on the first small hollow tube 31 is aligned with the positioning hole 41, thus fixing the upper hollow tube 3, after 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 connected with the inner wall of the injection hollow tube 4 in a threaded manner, 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 insertion, the lower hollow tube 5 is rotated, then the second small hollow tube 51 is driven to rotate by the lower hollow tube 5, until the fixing hole 32 on the second hollow tube 51 is aligned with the positioning hole 41, the second hollow tube 51 is fixed, when the second hollow tube 51 is in threaded connection with the third threaded groove 44, the bottom end of the erosion resisting device 6 is in threaded connection with the lower hollow tube 5, so that the erosion resisting device 6 is fixed again, after the fixation, 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 plate 11 and the square plate 12, and the effect of convenience in installation is achieved.
Embodiment 2, referring to fig. 5-6, the invention provides an erosion-resistant nozzle for fracturing an oilfield stratum, which comprises a connecting device 1, a nozzle body 2, an erosion-resistant device 6 and a fixing device 7;
further, the connecting device 1 further includes a second baffle 13, one end of the outer wall of the round rod 72 is fixedly provided with the second baffle 13, the second baffle 13 is fixedly provided with two ends of the outer wall of the moving plate 71 through the socket head cap screw 14, two ends of the inner wall of the moving plate 71 are inserted with the round rod 72, specifically, the round rod 72 has a fixing function on the second baffle 13, and the second baffle 13 has a fixing function on the moving plate 71 through the socket head cap screw 14.
The application process of the invention is as follows: in the use of the invention, the telescopic rod 73 is inserted into the threaded groove II 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 threaded groove II 43, when the telescopic rod 73 is in threaded connection with the threaded groove II 43, a through hole (not marked in the figure) on the moving plate 71 is aligned with the positioning hole 41, after the telescopic rod 73 is aligned, the round rod 72 is inserted into the through hole (not marked in the figure) until the baffle II 13 is attached to the moving plate 71, after the baffle II 13 is attached, the round rod 72 is fixed on the moving plate 71 through the hexagon socket head cap screw 14, after the round rod 72 is fixed, the moving plate 71 is pulled outwards through the cylinder 75, then the moving plate 71 drives the spring 74 to stretch through the telescopic rod 73, and the moving plate 71 simultaneously drives the round rod 72 to move outwards until the round rod 72 is positioned at one end of the threaded groove I42 and the threaded groove III 44, then, the first small hollow tube 31 is inserted into the first threaded groove 42, after the first small hollow tube 31 is inserted, the upper hollow tube 3 is rotated, then the first small hollow tube 31 is driven to rotate by the upper hollow tube 3 until the fixing hole 32 on the first small hollow tube 31 is aligned with the positioning hole 41, then the upper hollow tube 3 is fixed, after the fixing, the top end of the anti-erosion device 6 is inserted into the injection hollow tube 4, and the anti-erosion device 6 is rotated until the anti-erosion device 6 is connected with the inner wall of the injection hollow tube 4 in a threaded manner, so that the injection hollow tube 4 is fixed against the erosion device 6, then the second small hollow tube 51 is inserted into the third threaded groove 44, after the insertion, the lower hollow tube 5 is rotated, then the second small hollow tube 51 is driven to rotate by the lower hollow tube 5 until the fixing hole 32 on the second small hollow tube 51 is aligned with the positioning hole 41, thus the second small hollow tube 51 is fixed, when the second hollow tube 51 is in threaded connection with the third threaded groove 44, the bottom end of the anti-erosion device 6 is in threaded connection with the lower hollow tube 5, so that the anti-erosion device 6 is fixed again, after the anti-erosion device 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 fixed on the moving plate 71 through the second baffle 13 and the inner hexagon screw 14, and the stability is improved.
The above description is of the preferred embodiments of the present invention, and any person skilled in the art may modify the present invention or make modifications to the present invention with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present invention falls within the scope of the protection claimed by the present invention.
Claims (6)
1. An erosion resistant nozzle for oilfield formation fracturing, comprising a connecting device (1), a nozzle body (2), an erosion resistant device (6) and a fixing device (7), characterized in that: the nozzle body (2) consists of an upper hollow tube (3), a jet hollow tube (4) and a lower hollow tube (5);
the fixing device (7) comprises a moving plate (71);
the inner wall of the injection hollow tube (4) is square, positioning holes (41) are formed in the inner wall of the top end of the injection hollow tube (4), first screw grooves (42) are formed in the inner wall of the top end of the injection hollow tube (4), the middle end of the first screw grooves (42) is connected with two groups of top positioning holes (41), third screw grooves (44) are formed in the inner wall of the bottom end of the injection hollow tube (4), the middle end of the third screw grooves (44) is connected with two groups of bottom positioning holes (41), and second screw grooves (43) are formed in the inner walls of the two ends of the middle of the injection hollow tube (4);
a small hollow tube I (31) is fixedly arranged at the bottom of the upper hollow tube (3), fixing holes (32) are formed in two ends of the inner wall of the small hollow tube I (31), and the small hollow tube I (31) is connected with the inner wall of the thread groove I (42) in a threaded manner;
a second small hollow pipe (51) is fixedly arranged at the top of the lower hollow pipe (5), the two ends of the inner wall of the second small hollow pipe (51) are provided with the fixing holes (32), and the second small hollow pipe (51) is in threaded connection with the inner wall of the third threaded groove (44);
a telescopic rod (73) is fixedly arranged in the middle of the outer wall of the moving plate (71), the telescopic rod (73) is in threaded connection with the inner wall of the second threaded groove (43), and a spring (74) is inserted into the inner wall of the telescopic rod (73);
the connecting device (1) comprises a first baffle (11), two ends of the inner wall of the movable plate (71) are in threaded connection with round rods (72), the output ends of the round rods (72) are inserted into the inner walls of the positioning holes (41) and the fixing holes (32), one end of the outer wall of each round rod (72) is fixedly provided with the first baffle (11), and the middle end of the outer wall of the first baffle (11) is fixedly provided with a square plate (12);
the anti-erosion device (6) consists 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);
the top end of the hard alloy (61) is connected with the inner wall of the injection hollow pipe (4) in a threaded manner;
the bottom of the hard alloy (61) is connected with the inner wall of the lower hollow tube (5) through threads.
2. An erosion resistant nozzle for fracturing an oilfield formation according to claim 1, wherein: the connecting device (1) further comprises a second baffle (13), one end of the outer wall of the round rod (72) is fixedly provided with the second baffle (13), the second baffle (13) is fixedly provided with two ends of the outer wall of the movable plate (71) through inner hexagon screws (14), and two ends of the inner wall of the movable plate (71) are inserted into the round rod (72).
3. An 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. An 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. An 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).
6. An 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 CN112610197A (en) | 2021-04-06 |
| CN112610197B true CN112610197B (en) | 2023-11-24 |
Family
ID=75239700
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112610197B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | Erosion-resistant nozzles |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6695057B2 (en) * | 2001-05-15 | 2004-02-24 | Weatherford/Lamb, Inc. | Fracturing port collar for wellbore pack-off system, and method for using same |
-
2020
- 2020-12-16 CN CN202011487898.1A patent/CN112610197B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | Erosion-resistant nozzles |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112610197A (en) | 2021-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104213861A (en) | Expansion tube expansion technological method and tool system | |
| CN112610197B (en) | Erosion-resistant nozzle for oilfield stratum fracturing | |
| CN202914018U (en) | Pressure test anti-spraying multifunctional plug | |
| CN206571659U (en) | A kind of long plunger sand control can just wash energy-conserving and environment-protective oil well pump | |
| CN105484721B (en) | A kind of efficient pressing crack construction process pipe string of horizontal well and pressing crack construction technique | |
| CN209924950U (en) | Drilling tool blowout prevention valve with liquid flow impact resistance and liquid flow erosion resistance | |
| CN209510356U (en) | A kind of novel high-strength anchor pole | |
| CN108868674A (en) | Negative pressure unfreezing antiscale hydraulic anchor | |
| CN204357698U (en) | Mud piston quick replacement device | |
| CN220748281U (en) | Glass fiber reinforced plastic jacking pipe grouting hole structure | |
| CN210087274U (en) | Sand-flushing hydraulic cutting knife | |
| CN108868842B (en) | Recoverable high-prestress constant-resistance anchor rod locking device | |
| CN112814635B (en) | A pulsed pressurized water injection pipe string | |
| CN213298249U (en) | oil pump plunger | |
| CN211342873U (en) | Drilling and pipe fixing device | |
| CN203239288U (en) | A fishable high-pressure gas lift valve | |
| CN109505525B (en) | Drill rod and drill bit shank sealing structure for anchor rod drilling machine | |
| CN206581914U (en) | A kind of coal mine gas drainage holes hole flushing device | |
| CN109386248B (en) | Hydraulic shock release tool | |
| CN204851157U (en) | An anti-splash device for testing oil swabbing | |
| CN206845455U (en) | A kind of mud pump for petroleum drilling hydraulic cylinder structure | |
| CN202203103U (en) | Novel prevent sand setting card pump device | |
| CN222207873U (en) | Gas well injection liquid drawing device | |
| CN215725500U (en) | Hole plugging device for tunnel drilling blasting | |
| CN222716888U (en) | Hydraulic sand blasting perforating gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |