CN114607324A - Energy release capacity expansion device and method - Google Patents
Energy release capacity expansion device and method Download PDFInfo
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- CN114607324A CN114607324A CN202210308987.8A CN202210308987A CN114607324A CN 114607324 A CN114607324 A CN 114607324A CN 202210308987 A CN202210308987 A CN 202210308987A CN 114607324 A CN114607324 A CN 114607324A
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- 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
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
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- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
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- 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
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to the technical field of perforation completion of oil and gas wells, and discloses an energy release capacity expansion device and method. The invention is used for establishing the pressure difference between the stratum and the shaft at the moment of the detonation of the perforator, so that the pressure of the stratum is higher than the pressure of a liquid column in the shaft, thereby flushing metal, cement, rock and other fragments in the perforated hole into the shaft, and further realizing the purposes of cleaning the perforated hole, expanding the volume of the hole and improving the flow guiding capacity of the hole.
Description
Technical Field
The invention relates to the technical field of perforation completion of oil and gas wells, in particular to an energy-releasing capacity-expanding device and method.
Background
In the field of petroleum engineering, perforation is an important step of oil well completion construction, when perforation is carried out, a perforating device filled with perforating charges is lowered to a preset underground position through an oil pipe, and then a detonating mechanism in the perforating device is triggered in a mode of pressing the interior of an oil pipe column, so that the perforating charges are detonated.
The invention relates to an energy-releasing capacity-expanding perforating device according to Chinese patent number CN202010109349.4, belonging to the field of oil field well completion construction process equipment, in particular to an energy-releasing capacity-expanding perforating device, which comprises an initiation mechanism, a gun body, a cartridge frame, a detonating cord and a perforating bullet, wherein a firing pin is arranged in the initiation mechanism, and during initiation, the firing pin slides downwards under the action of pressure and then detonates the perforating bullet by detonating the detonating cord; the energy-releasing capacity-expanding body structurally comprises an energy-releasing capacity-expanding body shell and a compound medicament filled in the energy-releasing capacity-expanding body shell. When the perforating bullet is detonated, the jet flow reclaims the pore channel, and simultaneously, the high-energy particles in the energy-releasing expansion body are brought into the perforating pore channel by the eddy current field gravitation caused by the high-speed jet flow, the cloud-atomized high-energy particles are focused, collided and interacted in the pore channel to cause local glow ignition, the transformation from deflagration to spiral detonation is quickly completed, then the pore channel compaction layer influencing oil discharge is destroyed, and the pore channel volume can be further improved.
According to Chinese patent No. CN03201346.9, the high-hole density perforating device for the oil well, a perforating device used in the oil exploitation completion operation. The perforating gun is characterized by comprising a charge carrier fixed in a perforating gun and perforating charge groups fixed on the charge carrier, wherein each perforating charge group is provided with 2-3 perforating charges, the perforating charges of each perforating charge group are uniformly distributed in the circumferential direction, the axes of the perforating charges of each perforating charge group are on the same straight line or the same plane, and the straight line or the plane is vertical to the axis of the charge carrier. The utility model discloses a having solved and having carried out the technical problem that secondary perforation caused the injury to the sleeve pipe because of unit length charge density is low in perforating device, having improved the charge density on the unit length by times, reduced the operating cost.
The purpose of the perforations is to create an effective oil and gas flow path. In recent years, with the development of high-performance perforators such as deep penetration and large aperture, the perforation completion effect is improved. However, the pore passage is formed by 'extrusion', a compaction zone with reduced permeability exists around the pore passage, and perforation residues exist in the pore passage, so that the diversion capacity of the pore passage is reduced, and the capacity expansion and efficiency enhancement device for the perforation pore passage for the oil-gas well is invented. The method mainly solves the problems that after perforation, a compaction zone with reduced permeability exists around a duct, perforation residues exist inside the duct, the diversion capacity of the duct is reduced, the number of perforation layers in oil pipe conveying perforation construction is large, and all perforation layers cannot be cleaned by the existing perforation technology. The invention provides an oil-gas well perforation operation method. The device is used for establishing pressure difference between a stratum and a shaft at the moment of detonation of the perforator, so that the pressure of the stratum is higher than the pressure of a liquid column in the shaft, metal, cement, rock and other fragments in a perforated hole channel are flushed into the shaft, the purposes of cleaning the perforated hole channel, expanding the volume of the hole channel and improving the flow guiding capacity of the hole channel are achieved, and the friction between the device and the shaft wall is large in the process of descending the perforated hole in the conventional device and the conventional device.
Disclosure of Invention
The present invention is directed to an energy releasing expansion device and method to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an energy-releasing capacity-expanding device and a method thereof comprise a conveying pipe body, a first auxiliary device, a spray gun, an energy-releasing capacity-expanding device, a second auxiliary device, a depressurization short connecting pipe and perforation spouts, wherein the first auxiliary device and the second auxiliary device are alternately and fixedly arranged outside the conveying pipe body, the spray gun is fixedly arranged on the conveying pipe body and is positioned below the first auxiliary device, the energy-releasing capacity-expanding device and the depressurization short connecting pipe are fixedly arranged on the conveying pipe body and are positioned below the spray gun, and the perforation spouts are uniformly arranged on the spray gun;
the first auxiliary device comprises a sliding part and a first fastening lantern ring, the first fastening lantern ring is fixedly installed in the middle of the sliding part, the sliding part comprises a first fastening snap ring, a first installation frame and a first rotation adjusting body, the first installation frame is fixedly installed outside the first fastening snap ring, and the first rotation adjusting body is uniformly and fixedly installed on the first installation frame;
the first rotary adjusting body comprises a first buffer adjusting spring, a first rotary adjusting wheel, a first rotary frame and a first mounting frame, the first rotary frame is symmetrically and rotatably mounted inside the first mounting frame, the first rotary adjusting wheel is rotatably mounted in the middle of the front end of the first rotary frame, and the first buffer adjusting spring is fixedly mounted between the middle parts of the first rotary frame;
the second auxiliary device comprises a second rotation adjusting main body, a second fastening snap ring and a second fastening lantern ring, the second rotation adjusting main body is uniformly and fixedly installed outside the second fastening snap ring, the second fastening lantern ring is fixedly installed in the middle of the second fastening snap ring, fastening threaded columns are uniformly and threadedly inserted into two ends of the second fastening lantern ring and the first fastening lantern ring, the outer sides of two ends of the second fastening snap ring are fixedly connected with an installation fixing frame, and the upper end of the installation fixing frame is fixedly connected with a fixed snap ring through a fixing bolt;
the second rotation adjusting main body comprises a second mounting frame, a second buffer adjusting spring, a second rotation adjusting wheel and a second rotating frame, the second rotating frame is symmetrically and rotatably mounted inside the second mounting frame, the second rotation adjusting wheel is rotatably mounted in the middle of the front end of the second rotating frame, and the second buffer adjusting spring is fixedly mounted between the middle parts of the second rotating frame;
the energy-releasing capacity-expanding device comprises a righting sleeve, a shearing screw, an O-shaped ring, a piston, a backstop sheet, a righting disc, a shearing pin, a righting pipe and a shell, the shear screw is fixedly arranged in the shell, the centering pipe is fixedly arranged in the middle of the shell through the centering disc and the shear pin, the anti-return sheet is fixedly arranged in the middle of the shell, the piston is fixedly arranged in one end of the shell, the O-shaped rings are uniformly and fixedly distributed in the shell, the shearing screws are fixedly arranged in one end of the shell, the centering sleeve is fixedly arranged in one end of the shell, and one end of the righting sleeve is connected with two ends of the righting pipe, the righting disc and the shearing pin are positioned at one end of the piston, and the shearing screw is positioned at one end, far away from the righting disc, of the piston.
Preferably, the conveying pipe body is clamped and fixed in the first fastening sleeve ring and the second fastening sleeve ring, and the front end of the fastening threaded column is in compression contact with the outer wall of the conveying pipe body;
preferably, the fixed clamping ring is arranged in a semi-annular shape, and the inner wall of the fixed clamping ring is provided with protective grains;
preferably, the second rotary regulating wheel rotates transversely.
Preferably, the first rotary regulating wheel rotates longitudinally.
Preferably, the number of the second fastening lantern ring, the number of the first rotation adjusting body and the number of the second rotation adjusting body are six, and the second fastening snap ring and the first fastening snap ring are arranged in a hexagonal prism shape.
Preferably, the center of the fixing snap ring and the center of the second fastening lantern ring are vertically positioned on the same straight line.
Preferably, the front end of the fastening threaded column is fixedly connected with a fastening pressing sheet.
Preferably, the fastening extrusion piece is arranged in an arc shape, and the fastening extrusion piece is made of stainless steel.
A method for using an energy release expansion device comprises the following specific steps:
s1, the lower part of the spray gun can be moved to the designated position of the well drilling through the conveying pipe body, and the perforation treatment is completed through the perforation nozzle;
s2, in the process that the conveying pipe body drives the spray gun and the energy-releasing expansion device to the inside of a drill hole, the first rotating adjusting wheel in the first auxiliary device rotates in the vertical direction to enable the device to slide in the process of drilling the hole below the device, friction between the device and the well wall can be reduced through rotation of the first rotating adjusting wheel, and the first rotating adjusting wheel is extruded to enable the first buffering adjusting spring to be compressed or expand outwards to enable the first rotating adjusting wheel to be in full contact with the well wall according to difference of a well mouth;
s3, the position of the device can be adjusted smoothly in the well through the rotation of a second rotation adjusting wheel in a second auxiliary device, and the second rotation adjusting wheel can be in full contact with the well wall through a second buffer adjusting spring, so that the friction force between the device and the well wall can be greatly reduced in the rotating process in the using process of the device;
s4, the energy-releasing capacity-expanding device uses detonation energy in a spray gun as power to push a piston to move, a liquid inlet hole in a device main body is opened, residual detonation energy of a perforating bullet in a shaft is absorbed quickly in an instant, shaft pressure is reduced quickly, a large negative pressure difference is formed, a perforating duct is cleaned by utilizing quick impact backflow, and pollution of a perforating compaction belt is relieved.
Compared with the prior art, the invention has the following beneficial effects:
first, the first auxiliary device is arranged, so that the device can drive the spray gun and the energy release expansion device to be placed in a well to be smoothly placed when being placed in the well to work, friction between the device and the well wall can be greatly reduced, and the device cannot be scratched to damage the well wall.
Second, the invention can make the device rotate and adjust and control the angle and position of use in the well by arranging the second auxiliary device, so that the adjustment and control are convenient.
The energy-releasing expansion device is used for establishing pressure difference between a stratum and a shaft at the moment of detonation so that the stratum pressure is higher than the liquid column pressure in the shaft, thereby flushing metal, cement, rock and other fragments in the shaft after perforation into the shaft, further realizing the purposes of cleaning the perforation shaft, expanding the volume of the shaft and improving the flow conductivity of the shaft.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a schematic structural diagram of a first auxiliary device according to the present invention;
FIG. 3 is a schematic exploded view of a first auxiliary device according to the present invention;
FIG. 4 is a schematic view of the sliding part structure of the present invention;
FIG. 5 is a schematic view of a first rotational adjustment body of the present invention;
FIG. 6 is a schematic structural diagram of a second auxiliary device according to the present invention;
FIG. 7 is a schematic exploded view of a second auxiliary device according to the present invention;
FIG. 8 is a schematic view of a second fastening clip structure of the present invention;
FIG. 9 is a schematic view of a second rotational adjustment body of the present invention;
FIG. 10 is a schematic view of the internal structure of the energy-releasing expansion device of the present invention;
fig. 11 is a schematic structural view of a second embodiment of the second fastening collar of the present invention.
In the figure: 1-conveying pipe body, 2-first auxiliary device, 3-spray gun, 4-energy releasing and expanding device, 5-second auxiliary device, 6-pressure reducing nipple, 7-perforating spout, 8-sliding part, 9-first fastening lantern ring, 10-first fastening snap ring, 11-first mounting rack, 12-first rotation adjusting main body, 13-first buffer adjusting spring, 14-first rotation adjusting wheel, 15-first rotation rack, 16-first mounting rack, 17-second rotation adjusting main body, 18-second fastening snap ring, 19-second fastening lantern ring, 20-fastening threaded column, 21-mounting fixing rack, 22-fixing snap ring, 23-fixing bolt, 24-second mounting rack, 25-second buffer adjusting spring, 26-a second rotary adjusting wheel, 27-a second rotating frame, 28-a fastening extrusion sheet, 29-a centering sleeve, 30-a shearing screw, 31-an O-shaped ring, 32-a piston, 33-a backstop sheet, 34-a centering disc, 35-a shearing pin, 36-a centering pipe and 37-a shell.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is further described below with reference to the accompanying drawings.
Example 1
Referring to fig. 1, an embodiment of the present invention: an energy release capacity expansion device and a method thereof comprise a conveying pipe body 1, a first auxiliary device 2, a spray gun 3, an energy release capacity expansion device 4, a second auxiliary device 5, a pressure reduction short connecting pipe 6 and a perforation nozzle 7, wherein the first auxiliary device 2 and the second auxiliary device 5 are alternately and fixedly arranged outside the conveying pipe body 1, the spray gun 3 is fixedly arranged on the conveying pipe body 1, the spray gun 3 is positioned below the first auxiliary device 2, the energy release capacity expansion device 4 and the pressure reduction short connecting pipe 6 are fixedly arranged on the conveying pipe body 1, the energy release capacity expansion device 4 and the pressure reduction short connecting pipe 6 are positioned below the spray gun 3, and the perforation nozzle 7 is uniformly arranged on the spray gun 3;
referring to fig. 2, 3 and 4, the first auxiliary device 2 includes a sliding portion 8 and a first fastening collar 9, the first fastening collar 9 is fixedly installed at the middle portion of the sliding portion 8, the sliding portion 8 includes a first fastening snap ring 10, a first mounting frame 11 and a first rotation adjusting body 12, the first mounting frame 11 is fixedly installed at the outer portion of the first fastening snap ring 10, the first rotation adjusting body 12 is uniformly and fixedly installed on the first mounting frame 11, the first auxiliary device 2 is arranged to enable the device to drive the spray gun 3 and the energy-releasing expansion device 4 to be placed in the well to be smooth when working, so that the friction between the device and the well wall can be greatly reduced, the device and the well wall are not scratched to cause damage, the second auxiliary device 5 is arranged to enable the device to be capable of rotating, adjusting and controlling the angle and position of use in the well in the using process, so that the adjustment and the control are convenient;
referring to fig. 5, the first rotation adjusting body 12 includes a first buffer adjusting spring 13, a first rotation adjusting wheel 14, a first rotating frame 15 and a first mounting frame 16, the first rotating frame 15 is symmetrically and rotatably mounted inside the first mounting frame 16, the first rotation adjusting wheel 14 is rotatably mounted in the middle of the front end of the first rotating frame 15, the first buffer adjusting spring 13 is fixedly mounted between the middle of the first rotating frame 15, and the first rotation adjusting wheel 14 rotates to contact with the well wall, so that the device is convenient to be placed below;
referring to fig. 6, 7 and 8, the second auxiliary device 5 includes a second rotation adjusting body 17, a second fastening snap ring 18 and a second fastening collar 19, the second rotation adjusting body 17 is uniformly and fixedly installed outside the second fastening snap ring 18, the second fastening collar 19 is fixedly installed in the middle of the second fastening snap ring 18, two ends of the second fastening collar 19 and the first fastening collar 9 are uniformly screwed and rotatably inserted with fastening threaded posts 20, outer sides of two ends of the second fastening snap ring 18 are fixedly connected with mounting brackets 21, an upper end of the mounting bracket 21 is fixedly connected with a fixing snap ring 22 through a fixing bolt 23, and the conveying pipe body 1 can be firmly and fixedly connected through the second fastening snap ring 18 and the second fastening collar 19;
referring to fig. 9, the second rotation adjusting body 17 includes a second mounting frame 24, a second buffer adjusting spring 25, a second rotation adjusting wheel 26 and a second rotating frame 27, the second rotating frame 27 is symmetrically and rotatably mounted inside the second mounting frame 24, the second rotation adjusting wheel 26 is rotatably mounted in the middle of the front end of the second rotating frame 27, the second buffer adjusting spring 25 is fixedly mounted between the middle portions of the second rotating frame 27, and the position of the apparatus can be rotatably adjusted in the well through the second rotation adjusting wheel 26;
referring to fig. 10, the energy-releasing expansion device 4 includes a centering sleeve 29, a shear screw 30, an O-ring 31, a piston 32, a stop plate 33, a centering plate 34, a shear pin 35, a centering tube 36 and a housing 37, the shear screw 30 is fixedly installed inside the housing 37, the centering tube 36 is fixedly installed in the middle of the housing 37 through the centering plate 34 and the shear pin 35, the stop plate 33 is fixedly installed in the middle of the housing 37, the piston 32 is fixedly installed inside one end of the housing 37, the O-ring 31 is uniformly and fixedly distributed inside the housing 37, the shear screw 30 is fixedly installed inside one end of the housing 37, the centering sleeve 29 is fixedly installed inside one end of the housing 37, one end of the centering sleeve 29 is connected to two ends of the centering tube 36, the centering plate 34 and the shear pin 35 are located at one end of the piston 32, the shear screw 30 is located at one end of the piston 32 far from the centering plate 34, the energy-releasing expansion device 4 uses detonation energy in the lance 3 as power, the device is used for establishing pressure difference between a stratum and the shaft at the moment of 3 detonating to enable the stratum pressure to be higher than liquid column pressure in the shaft, so that metal, cement, rock and other fragments in the perforated hole are flushed into the shaft after perforation, the perforated hole is cleaned, the volume of the hole is enlarged, and the flow conductivity of the hole is improved.
Referring to fig. 1, the conveying pipe 1 is clamped and fixed inside the first fastening collar 9 and the second fastening collar 19, and the front end of the fastening threaded column 20 is in pressing contact with the outer wall of the conveying pipe 1, so that the conveying pipe 1 is firmly fixed inside the first fastening collar 9 and the second fastening collar 19;
referring to fig. 8, the fixing clip 22 is disposed in a semi-annular shape, and the inner wall of the fixing clip 22 is provided with a protective pattern to firmly fix the conveying pipe 1;
referring to fig. 1, the second rotary regulating wheel 26 rotates transversely to reduce friction.
Referring to fig. 1, the first rotatable adjustment wheel 14 rotates longitudinally to reduce friction.
Referring to fig. 1, six second fastening rings 19, six first rotation adjusting bodies 12 and six second rotation adjusting bodies 17 are provided, and the second fastening snap ring 18 and the first fastening snap ring 10 are disposed in a hexagonal prism shape, so that the device can rotate smoothly in the well.
Referring to fig. 7, the center of the fixing snap ring 22 and the center of the second fastening ring 19 are vertically aligned, and the conveying pipe body 1 can be firmly clamped between the mounting fixing frame 21 and the fixing snap ring 22 by screwing the fixing bolt 23, so that the conveying pipe body 1 can be firmly and fixedly connected.
In the embodiment, the first auxiliary device 2 is arranged to drive the spray gun 3 and the energy-releasing expansion device 4 to be placed in a well to work, so that the friction force between the device and the well wall can be greatly reduced, the device cannot be scratched to cause damage to the well wall, the second auxiliary device 5 is arranged to enable the device to rotate in the well in the using process, adjust and control the using angle and position, so that the adjustment and control are convenient, the energy-releasing expansion device 4 uses the detonation energy in the spray gun 3 as power to push the piston 32 to move, open the liquid inlet hole in the device main body, instantly and quickly absorb the residual detonation energy of the perforating bullet in the well shaft, quickly reduce the pressure of the well shaft, form a larger negative pressure difference, clean the perforating pore passage by utilizing quick impact backflow, and relieve the pollution of a perforating compaction belt, the device is used for establishing pressure difference between a stratum and a shaft at the moment of detonation of the detonation device 3, so that the pressure of the stratum is higher than the pressure of a liquid column in the shaft, and therefore, metal, cement, rock and other fragments in a perforated hole channel are flushed into the shaft, the perforated hole channel is cleaned, the volume of the hole channel is expanded, and the flow conductivity of the hole channel is improved.
Example 2
In example 1, as shown in fig. 11, a fastening pressing piece 28 is fixedly connected to the front end of the fastening threaded column 20, the fastening pressing piece 28 is provided in an arc shape, and the fastening pressing piece 28 is made of stainless steel.
In the embodiment, the fastening screw column 20 can be sufficiently pressed into contact with the outer wall of the conveying pipe body 1 by the fastening pressing piece 28 by screwing, so that the conveying pipe body 1 can be firmly fixed in the middle of the second auxiliary device 5 of the first auxiliary device 2.
A method for using an energy release expansion device comprises the following specific steps:
s1, the lower part of the spray gun 3 can be moved to a specified position of a well drilling through the conveying pipe body 1, and perforation treatment is completed through the perforation nozzle 7;
s2, in the process that the conveying pipe body 1 drives the spray gun 3 and the energy-releasing expansion device 4 to the inside of a drill hole, the first rotating adjusting wheel 14 in the first auxiliary device 2 rotates in the vertical direction to enable the device to drill hole below the drill hole smoothly, friction force between the device and a well wall can be reduced through rotation of the first rotating adjusting wheel 14, and the first buffering adjusting spring 13 is compressed or expanded outwards through extrusion of the first rotating adjusting wheel 14 according to different well mouths so that the first rotating adjusting wheel 14 can be in full contact with the well wall;
s3, the position of the device can be adjusted smoothly in the well through the rotation of the second rotation adjusting wheel 26 in the second auxiliary device 5, and the second rotation adjusting wheel 26 can be in full contact with the well wall through the second buffer adjusting spring 25, so that the friction force between the device and the well wall can be greatly reduced in the rotating process in the using process of the device;
s4, the energy-releasing expansion device 4 uses detonation energy in the spray gun 3 as power to push the piston 32 to move, opens the liquid inlet hole on the device main body, instantly and quickly absorbs residual detonation energy of the perforating bullet in the shaft, quickly reduces the shaft pressure, forms a larger negative pressure difference, cleans the perforating hole channel by utilizing quick impact backflow, and relieves the pollution of perforating compaction belt.
The working principle is as follows: the lower part of the spray gun 3 can be placed at a designated position of a well through the conveying pipe body 1, perforation treatment is completed through the perforation nozzles 7, the conveying pipe body 1 drives the spray gun 3 and the energy-releasing expansion device 4 to be placed in the drill hole, the first rotary adjusting wheel 14 in the first auxiliary device 2 rotates in the vertical direction to enable the lower part of the device to slide smoothly in the drilling process, the first rotary adjusting wheel 14 rotates to reduce the friction force between the device and the well wall, the first buffer adjusting spring 13 is compressed or expanded to enable the first rotary adjusting wheel 14 to be in full contact with the well wall by extruding the first rotary adjusting wheel 14 according to the difference of a well mouth, the second rotary adjusting wheel 26 in the second auxiliary device 5 rotates to enable the device to slide smoothly in the well at a rotary adjusting position, and the second rotary adjusting wheel 26 can be in full contact with the well wall by the second buffer adjusting spring 25, so that the friction force between the energy-releasing expansion device 4 and the wall of a well can be greatly reduced in the rotating process in the using process of the device, the energy-releasing expansion device 4 takes detonation energy in the spray gun 3 as power to push the piston 32 to displace and open a liquid inlet hole on the device main body, the residual detonation energy of a perforating bullet in the well bore is quickly absorbed instantly, the pressure of the well bore is quickly reduced, a large negative pressure difference is formed, a perforating pore passage is cleaned by utilizing quick impact backflow, the pollution of a perforating compaction zone is relieved, the device is used for establishing the pressure difference between a stratum and the well bore at the moment of 3 detonation, the stratum pressure is higher than the liquid column pressure in the well bore, so that metal, cement, rock and other debris in the pore passage after perforation are flushed into the well bore, the pore passage cleaning, the pore passage volume is enlarged, the flow guide pore passage capacity is improved, and the fastening and extrusion sheet 28 can be in full extrusion contact with the outer wall of the conveying pipe body 1 by screwing the fastening threaded column 20, thereby making the conveying pipe body 1 firmly fixed in the middle of the second auxiliary device 5 of the first auxiliary device 2, and firmly clamping the conveying pipe body 1 between the installation fixing frame 21 and the fixing snap ring 22 by screwing the fixing bolt 23, so that the conveying pipe body 1 can be firmly and fixedly connected.
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 (10)
1. The utility model provides a release can flash unit, includes conveying body (1), first auxiliary device (2), spray gun (3), releases can flash unit (4), second auxiliary device (5), step-down nipple (6) and perforation spout (7), its characterized in that: the first auxiliary device (2) and the second auxiliary device (5) are alternately and fixedly arranged outside the conveying pipe body (1), the spray gun (3) is fixedly arranged on the conveying pipe body (1), the spray gun (3) is positioned below the first auxiliary device (2), the energy-releasing capacity-expanding device (4) and the depressurization short connecting pipe (6) are fixedly arranged on the conveying pipe body (1), the energy-releasing capacity-expanding device (4) and the depressurization short connecting pipe (6) are positioned below the spray gun (3), and the perforating nozzles (7) are uniformly arranged on the spray gun (3);
the first auxiliary device (2) comprises a sliding part (8) and a first fastening collar (9), the first fastening collar (9) is fixedly installed in the middle of the sliding part (8), the sliding part (8) comprises a first fastening clamping ring (10), a first installation frame (11) and a first rotation adjusting body (12), the first installation frame (11) is fixedly installed outside the first fastening clamping ring (10), and the first rotation adjusting body (12) is uniformly and fixedly installed on the first installation frame (11);
the first rotary adjusting body (12) comprises a first buffer adjusting spring (13), a first rotary adjusting wheel (14), a first rotary frame (15) and a first mounting frame (16), the first rotary frame (15) is symmetrically and rotatably mounted inside the first mounting frame (16), the first rotary adjusting wheel (14) is rotatably mounted in the middle of the front end of the first rotary frame (15), and the first buffer adjusting spring (13) is fixedly mounted between the middle parts of the first rotary frame (15);
the second auxiliary device (5) comprises a second rotation adjusting main body (17), a second fastening snap ring (18) and a second fastening sleeve ring (19), the second rotation adjusting main body (17) is uniformly and fixedly installed outside the second fastening snap ring (18), the second fastening sleeve ring (19) is fixedly installed in the middle of the second fastening snap ring (18), fastening threaded columns (20) are uniformly screwed and rotatably inserted into two ends of the second fastening sleeve ring (19) and the first fastening sleeve ring (9), an installation fixing frame (21) is fixedly connected to the outer sides of two ends of the second fastening snap ring (18), and the upper end of the installation fixing frame (21) is fixedly connected with a snap ring (22) through a fixing bolt (23);
the second rotary adjusting body (17) comprises a second mounting frame (24), a second buffer adjusting spring (25), a second rotary adjusting wheel (26) and a second rotary frame (27), the second rotary frame (27) is symmetrically and rotatably mounted inside the second mounting frame (24), the second rotary adjusting wheel (26) is rotatably mounted in the middle of the front end of the second rotary frame (27), and the second buffer adjusting spring (25) is fixedly mounted between the middle parts of the second rotary frame (27);
the energy-releasing capacity-expanding device (4) comprises a centering sleeve (29), a shearing screw (30), an O-shaped ring (31), a piston (32), a backstop sheet (33), a centering disc (34), a shearing pin (35), a centering pipe (36) and a shell (37), wherein the shearing screw (30) is fixedly installed in the shell (37), the centering pipe (36) is fixedly installed in the middle of the shell (37) through the centering disc (34) and the shearing pin (35), the backstop sheet (33) is fixedly installed in the middle of the shell (37), the piston (32) is fixedly installed in one end of the shell (37), the O-shaped ring (31) is uniformly and fixedly distributed in the shell (37), the shearing screw (30) is fixedly installed in one end of the shell (37), the centering sleeve (29) is fixedly installed in one end of the shell (37), one end of the centering sleeve (29) is connected with two ends of the centering pipe (36), the centering disc (34) and the shearing pin (35) are located at one end of the piston (32), and the shearing screw (30) is located at one end, far away from the centering disc (34), of the piston (32).
2. An energy releasing capacity enlarging apparatus according to claim 1, wherein: the conveying pipe body (1) is clamped and fixed in the first fastening sleeve ring (9) and the second fastening sleeve ring (19), and the front end of the fastening threaded column (20) is in compression contact with the outer wall of the conveying pipe body (1).
3. An energy releasing capacity enlarging apparatus according to claim 2, wherein: the fixed snap ring (22) is arranged in a semi-annular mode, and the inner wall of the fixed snap ring (22) is provided with protective grains.
4. An energy releasing capacity enlarging apparatus according to claim 3, wherein: the second rotary regulating wheel (26) rotates transversely.
5. An energy releasing capacity expanding device according to claim 4, wherein: the first rotatable adjustment wheel (14) rotates longitudinally.
6. An energy releasing capacity enlarging apparatus according to claim 5, wherein: the second fastening lantern ring (19), the first rotation adjusting body (12) and the second rotation adjusting body (17) are all provided with six, and the second fastening clamping ring (18) and the first fastening clamping ring (10) are all arranged in a hexagonal prism shape.
7. An energy releasing capacity expanding device according to claim 6, wherein: the center of the fixing snap ring (22) and the center of the second fastening lantern ring (19) are vertically positioned on the same straight line.
8. An energy releasing capacity enlarging apparatus according to claim 7, wherein: the front end of the fastening threaded column (20) is fixedly connected with a fastening extrusion sheet (28).
9. An energy releasing capacity enlarging apparatus according to claim 8, wherein: the fastening extrusion piece (28) is arranged in an arc shape, and the fastening extrusion piece (28) is made of stainless steel.
10. The method of claim 9, wherein the method includes the following steps:
s1, the lower part of the spray gun (3) can be moved to a specified position of a well drilling through the conveying pipe body (1), and perforation treatment is completed through the perforation nozzle (7);
s2, the conveying pipe body (1) drives the spray gun (3) and the energy-releasing capacity expansion device (4) to rotate in the vertical direction through the first rotating adjusting wheel (14) in the first auxiliary device (2) in the process from the lower part to the inside of a drill hole, so that the drilling process below the device can be smooth, the friction force between the device and the well wall can be reduced through the rotation of the first rotating adjusting wheel (14), and the first rotating adjusting wheel (14) is compressed or expanded to enable the first rotating adjusting wheel (14) to be fully contacted with the well wall through extruding the first rotating adjusting wheel (14) according to the difference of a well mouth;
s3, the position of the device can be adjusted smoothly in the well through rotation of a second rotation adjusting wheel (26) in a second auxiliary device (5), and the second rotation adjusting wheel (26) can be in full contact with the well wall through a second buffer adjusting spring (25), so that the friction force between the device and the well wall can be greatly reduced in the rotating process in the using process of the device;
s4, the energy release capacity expansion device (4) uses detonation energy in the spray gun (3) as power to push the piston (32) to shift, opens the liquid inlet hole on the device main body, instantly and quickly absorbs the residual detonation energy of the perforating charge in the shaft, quickly reduces the shaft pressure, forms a larger negative pressure difference, cleans the perforating channel by utilizing quick impact backflow, and relieves the pollution of perforating compaction belt.
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| CN114607324B (en) | 2023-01-17 |
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