CN117343709B - Non-explosive energy release blocking removal medicament and preparation method and application thereof - Google Patents

Non-explosive energy release blocking removal medicament and preparation method and application thereof Download PDF

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CN117343709B
CN117343709B CN202311648803.3A CN202311648803A CN117343709B CN 117343709 B CN117343709 B CN 117343709B CN 202311648803 A CN202311648803 A CN 202311648803A CN 117343709 B CN117343709 B CN 117343709B
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energy release
reaction chamber
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medicament
explosive
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CN117343709A (en
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禹栽星
张楠楠
侯玉波
阎春丰
房磊
毕晓琪
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Daqing Jinxiangyu Technology Co ltd
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Daqing Jinxiangyu Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/536—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning characterised by their form or by the form of their components, e.g. encapsulated material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/66—Compositions based on water or polar solvents
    • C09K8/665—Compositions based on water or polar solvents containing inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/70—Compositions for forming crevices or fractures characterised by their form or by the form of their components, e.g. foams
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/84—Compositions based on water or polar solvents
    • C09K8/845—Compositions based on water or polar solvents containing inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/92—Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
    • 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
    • E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/10—Nanoparticle-containing well treatment fluids

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Abstract

The invention discloses a non-explosive energy release blocking removal medicament, a preparation method and application thereof, and belongs to the technical field of oil gas exploitation pressure cracking blocking. The invention solves the problems of low energy utilization rate, high cost, complex procedures and the like of the traditional oilfield blocking removal agent. The invention provides an energy release medicament of water thermal shock supercritical phase transition based on a thermite, which takes liquid water as base liquid and is contained in a non-explosive energy release blocking remover, the thermal chemical reaction of the non-explosive heat release thermite is triggered by current to release heat rapidly in water, the liquid water absorbs heat and changes phase transition into supercritical state within 1-5s, volume expansion rapidly occurs to do work externally, and the physical method of high-temperature high-pressure blocking removal or fracturing seam making is realized through rapid energy conversion to finish the transformation of an oil and gas layer.

Description

Non-explosive energy release blocking removal medicament and preparation method and application thereof
Technical Field
The invention relates to a non-explosive energy release blocking removal medicament, a preparation method and application thereof, and belongs to the technical field of oil gas exploitation pressure blocking removal.
Background
At present, the measures of hydraulic fracturing, acid fracturing, high-energy gas fracturing, composite perforation fracturing and the like are mainly adopted at home and abroad for the fracturing blocking removal improvement of oil gas and water injection well conditions so as to improve the oil gas yield or reduce the water injection pressure and improve the water injection quantity. Although the acidizing reaction treatment and the fracturing to create new cracks can restore the productivity of the oil and gas well to a certain extent, the hydraulic fracturing and the acidizing fracturing have large construction work and work amount and high cost; the high-energy gas fracturing, the composite perforation fracturing and the like belong to the control range of explosive dangerous goods, and the control of the materials is strict, so that the related equipment is complicated in links such as transportation, use and the like, and the related explosive procedures must be handled for construction. In addition, the loading amount, the loading combustion work performance and the like of the gunpowder or the solid propellant are limited by the underground temperature, pressure and other environmental conditions, the energy utilization rate is low, and the construction operation effect is limited.
In order to solve the problems, a non-explosive energy release blocking removal medicament, a preparation method and application thereof are needed.
Disclosure of Invention
The invention provides a non-explosive energy release blocking removal medicament, a preparation method and application thereof, and aims to solve the problems of low energy utilization rate, high cost, complex procedures and the like of the conventional oilfield blocking removal medicament.
The technical scheme of the invention is as follows:
one of the purposes of the invention is to provide a non-explosive energy releasing and blocking removing medicament, which comprises a first energy releasing medicament and a second energy releasing medicament, wherein,
the primary energy release agent comprises aluminum powder and ferric oxide powder;
the secondary energy release agent comprises sodium carbonate and water.
Further defined, the weight of sodium carbonate in the secondary energy-releasing agent is 1.11 times the weight of aluminum powder in the primary energy-releasing agent, and the weight of water is 2 times the weight of sodium carbonate.
Further defined, the weight ratio of the aluminum powder to the ferric oxide powder in the primary energy release medicament is (2-4): (6-8).
Further defined, the weight ratio of the aluminum powder to the ferric oxide powder in the primary energy release medicament is 2:8.
further defined, the weight ratio of the aluminum powder to the ferric oxide powder in the primary energy release medicament is 3:7.
further defined, the weight ratio of the aluminum powder to the ferric oxide powder in the primary energy release medicament is 4:6.
further defined, the aluminum powder is spherical with a particle size of 3-6 nm.
Further defined, the iron oxide powder is spherical with a particle size of 3-6 nm.
The second purpose of the invention is to provide a preparation method of the non-explosive energy release blocking remover, which comprises a preparation method of a first-stage energy release remover and a preparation method of a second-stage energy release remover, wherein the preparation method of the first-stage energy release remover comprises the following steps: mixing ferric oxide powder and aluminum powder in a powder mixer for not less than 50min; the preparation method of the secondary energy release medicament comprises the following steps: after heating the water to 50 ℃, pouring the water into sodium carbonate and stirring the water uniformly.
The invention further provides a device for using the non-explosive energy release blocking remover, the device comprises a gun head, a reaction chamber, a blocking joint, a screen pipe and a gun tail, the reaction chamber comprises a first-stage reaction chamber and a second-stage reaction chamber, the upper ends of the first-stage reaction chamber and the second-stage reaction chamber are connected with the gun head, the first-stage reaction chamber is arranged in the second-stage reaction chamber, the lower end of the second-stage reaction chamber is connected with the blocking joint, the lower end of the blocking joint is connected with the screen pipe, the lower end of the screen pipe is connected with the gun tail, the upper end and the lower end of the first-stage reaction chamber are sealed, the first-stage reaction chamber is filled with the first-stage energy release remover, an electric heating element is arranged in the first-stage reaction chamber and is connected with an ignition device, the upper end and the lower end of a container outer barrel of the second-stage reaction chamber are respectively sealed through the gun head and the blocking joint, the container outer barrel is filled with the second-stage energy release remover, a piston is arranged in a central hole of the blocking joint, and a plurality of round holes are formed in the radial direction in the screen pipe.
Still further prescribe a limit to, the one-level reaction chamber includes top connection, container body, plug screw shutoff and sealing rubber cover, the top connection upper end links to each other with the rifle head, sealing rubber cover suit is on the top connection, the container body is plugged into to top connection lower part, sealing rubber cover rises and extrudees on the inner wall of container body, container body lower extreme is provided with one-level medicament and fills the mouth, one-level medicament fills mouth and plug screw shutoff sealing connection.
Further limited, the sealing rubber sleeve is sleeved with a tightening ring, a backup cap spiral ring is arranged above the tightening ring, and the backup cap spiral ring is in threaded connection with the upper joint.
Further defined, the electric heating element is arranged at the axis of the lower end of the upper connector, a wire harness channel is arranged on the upper connector, and the wire harness penetrates through the wire harness channel to be connected with the electric heating element and the ignition device.
Still further limiting, the shutoff joint includes plug, screw plug and shear pin, the piston sets up in the plug, the clearance of piston and plug passes through the rubber ring and seals, the piston side passes through the shear pin and links to each other with the plug, set up the second grade medicament on the plug lateral wall and load the mouth, the second grade medicament loads the mouth and is located the piston top, the second grade medicament loads mouth and screw plug sealing connection, the plug upper end links to each other with second grade reaction chamber lower extreme, the plug lower extreme links to each other with the screen pipe.
Still further defined, the electrical heating element comprises a nichrome wire wrapped around an insulating tube having a length of 100mm and an insulating tube.
Further limited, the container outer cylinder is a 32CrMo4 seamless alloy steel pipe, and the pipe wall thickness is not less than 10mm.
Further limited, the screen pipe is a seamless alloy steel pipe, and the pipe body is provided with a plurality of round holes with the diameter of 20 mm.
The invention aims at providing the application of the non-explosive energy release blocking remover, and particularly provides a primary energy release agent and a secondary energy release agent of the non-explosive energy release blocking remover, which are filled in a using device and are used for blocking removal or fracturing modification of an oil-water well.
The beneficial effects are that:
(1) The invention provides an energy release medicament of water thermal shock supercritical phase transition based on a thermite, which takes liquid water as base liquid and is contained in a non-explosive energy release blocking remover, the thermal chemical reaction of the non-explosive heat release thermite is triggered by current to release heat rapidly in water, the liquid water absorbs heat and changes phase transition into supercritical state within 1-5s, volume expansion rapidly occurs to do work externally, and the physical method of high-temperature high-pressure blocking removal or fracturing seam making is realized through rapid energy conversion to finish the transformation of an oil and gas layer. In conclusion, the energy release blocking removal medicament provided by the invention has the advantages of high heat energy conversion rate after thermochemical reaction, short phase change time of a reaction medium, more complete thermochemical reaction, more rapid formation of section pressure in a well and the like, and is more suitable for fracturing and blocking removal reconstruction of near-well geological rock gaps of oil-water wells.
(2) The non-explosive energy-releasing blocking remover provided by the invention belongs to a non-hazardous chemical, the chemical property of raw materials is safe and stable, the thermal chemical reaction of the energy-releasing blocking remover of the thermite is triggered at a high temperature, the trigger temperature is near thousand ℃, the thermal chemical reaction can not occur at normal temperature and normal pressure, the safety and the reliability of the energy-releasing blocking remover in the process of processing, storing and transporting are ensured, and any dangerous chemical procedure is not required to be handled in the whole process from production and processing to operation and use.
(3) The non-explosive energy release blocking removal agent provided by the invention has the advantages of high heat energy conversion rate after thermochemical reaction, short phase change time of a reaction medium, more complete thermochemical reaction, more rapid formation of section pressure in a well, simple and safe preparation method, and more suitability for fracturing and blocking removal modification of near-well geological rock gaps of oil-water wells.
Drawings
FIG. 1 is a schematic cross-sectional view of an all-non-explosive energy-releasing blocking remover according to the present invention;
FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1 according to the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1 according to the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 1 according to the present invention;
FIG. 6 is a schematic cross-sectional view of a primary reaction chamber according to the present invention;
FIG. 7 is a schematic cross-sectional view of a secondary reaction chamber according to the present invention;
FIG. 8 is a schematic cross-sectional view of a plugged connector according to the present invention;
FIG. 9 is a graph showing the pressure recorded by a PT instrument over time during the course of the work with the unblocking agent prepared in example 1.
In the figure: 1-gun head, 3-plugging connector, 4-screen pipe, 5-gun tail, 21-first-stage reaction chamber, 22-second-stage reaction chamber, 211-upper connector, 212-container tube body, 213-electric heating element, 214-screw plug plugging, 215-first-stage energy release medicament, 216-sealing rubber sleeve, 217-tightening ring, 218-cap-prepared spiral ring, 221-container outer cylinder, 222-second-stage energy release medicament, 30-plugging sleeve, 31-screw plug, 32-shear pin, 33-piston and 34-rubber ring.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The experimental methods used in the following examples are conventional methods unless otherwise specified. The materials, reagents, methods and apparatus used, without any particular description, are those conventional in the art and are commercially available to those skilled in the art.
Example 1
(1) The non-explosive energy release blocking remover provided in this embodiment includes a first-stage energy release remover and a second-stage energy release remover, wherein:
the primary energy release medicament comprises 2 parts of spherical analytically pure aluminum powder with the particle size of 3-6nm and 8 parts of spherical analytically pure ferric oxide powder with the particle size of 3-6 nm;
the secondary energy release agent comprises 1.11 times of sodium carbonate by weight of aluminum powder and 2 times of water by weight of sodium carbonate.
(2) The preparation method of the non-burst energy release blocking removal medicament provided by the embodiment comprises the following steps:
the preparation method of the first-level energy release medicament comprises the following steps: and sequentially pouring ferric oxide powder and aluminum powder into a powder mixer, and starting the powder mixer to mix for 50min.
The preparation method of the secondary energy release medicament comprises the following steps: after heating the water to 50 ℃, sodium carbonate is added and stirred uniformly.
Example 2
(1) The non-explosive energy release blocking remover provided in this embodiment includes a first-stage energy release remover and a second-stage energy release remover, wherein:
the primary energy release medicament comprises 3 parts of spherical analytically pure aluminum powder with the particle size of 3-6nm and 7 parts of spherical analytically pure ferric oxide powder with the particle size of 3-6 nm;
the secondary energy release agent comprises 1.11 times of sodium carbonate by weight of aluminum powder and 2 times of water by weight of sodium carbonate.
(2) The preparation method of the non-burst energy release blocking removal medicament provided by the embodiment comprises the following steps:
the preparation method of the first-level energy release medicament comprises the following steps: and sequentially pouring ferric oxide powder and aluminum powder into a powder mixer, and starting the powder mixer to mix for 60min.
The preparation method of the secondary energy release medicament comprises the following steps: after heating the water to 50 ℃, sodium carbonate is added and stirred uniformly.
Example 3
(1) The non-explosive energy release blocking remover provided in this embodiment includes a first-stage energy release remover and a second-stage energy release remover, wherein:
the primary energy release medicament comprises 4 parts of spherical analytically pure aluminum powder with the particle size of 3-6nm and 6 parts of spherical analytically pure ferric oxide powder with the particle size of 3-6 nm;
the secondary energy release agent comprises 1.11 times of sodium carbonate by weight of aluminum powder and 2 times of water by weight of sodium carbonate.
(2) The preparation method of the non-burst energy release blocking removal medicament provided by the embodiment comprises the following steps:
the preparation method of the first-level energy release medicament comprises the following steps: and sequentially pouring ferric oxide powder and aluminum powder into a powder mixer, and starting the powder mixer to mix for 80 minutes.
The preparation method of the secondary energy release medicament comprises the following steps: after heating the water to 50 ℃, sodium carbonate is added and stirred uniformly.
Effect example 1
The non-explosive energy release blocking remover prepared in the above embodiments 1 to 3 is respectively filled in a using device, wherein the using device is a full non-explosive energy release blocking remover, as shown in fig. 1 to 8, and comprises a gun head 1, a reaction chamber, a blocking joint 3, a screen pipe 4 and a gun tail 5, the reaction chamber comprises a first-stage reaction chamber 21 and a second-stage reaction chamber 22, the upper ends of the first-stage reaction chamber 21 and the second-stage reaction chamber 22 are connected with the gun head 1, the first-stage reaction chamber 21 is arranged in the second-stage reaction chamber 22, the lower end of the second-stage reaction chamber 22 is connected with the blocking joint 3, the lower end of the blocking joint 3 is connected with the screen pipe 4, the lower end of the screen pipe 4 is connected with the gun tail 5, the upper end and the lower end of the first-stage reaction chamber 21 are sealed, the first-stage reaction chamber 21 is filled with the first-stage energy release agent 215, the first-stage reaction chamber 21 is internally provided with an electric heating element 213, the electric heating element 213 is connected with an ignition device, the upper end and lower end of a container outer barrel 221 of the second-stage reaction chamber 22 is respectively connected with the gun head 1 and the gun head 1, the lower end and the lower end of the container outer barrel 221 are respectively provided with a plurality of round holes 33, the second-stage reaction chamber 22 is provided with a plurality of round holes 33, and the blocking joint 3 is provided with a plurality of round holes 33.
The primary reaction chamber 21 is a sealable container, the primary reaction chamber 21 comprises an upper connector 211, a container tube 212, a screw plug 214 and a sealing rubber sleeve 216, an external thread is arranged at the upper end of the upper connector 211, the external thread at the upper end of the upper connector 211 is connected with an internal thread at the lower end of the gun head 1, the sealing rubber sleeve 216 is sleeved on the upper connector 211, a tightening ring 217 is sleeved on the sealing rubber sleeve 216, a cap spiral ring 218 is arranged above the tightening ring 217, and the cap spiral ring 218 is connected with the upper connector 211 through threads. The lower part of the upper joint 211 is plugged into the upper port of the container tube 212, the cap screw ring 218 is screwed to push the sealing rubber sleeve 216 downwards, the sealing rubber sleeve 216 is extruded on the inner wall of the container tube 212, and the upper port of the primary reaction chamber 21 is plugged. The lower end of the container tube 212 is provided with a primary medicament filling port, and a primary energy release medicament 215 is filled from the primary medicament filling port, and the primary medicament filling port is blocked by a screw plug block 214 and a sealing rubber ring.
The upper end screw thread of the container outer cylinder 221 of the secondary reaction chamber 22 is connected with the outer screw thread of the lower end of the gun head 1, the connecting gap is sealed by a rubber ring, the lower end screw thread of the container outer cylinder 221 is connected with the upper end screw thread of the plugging joint 3, so that the secondary reaction chamber 22 becomes a closed container.
The plugging connector 3 comprises a plugging sleeve 30, a threaded plug 31 and a shear pin 32, wherein the piston 33 is arranged in the plugging sleeve 30, a gap between the piston 33 and the plugging sleeve 30 is sealed through a rubber ring 34, the side surface of the piston 33 is connected with the plugging sleeve 30 through the shear pin 32, a secondary medicament filling port is formed in the side wall of the plugging sleeve 30, the secondary medicament filling port is positioned above the piston 33, a secondary medicament 222 is filled through the secondary medicament filling port, the secondary medicament filling port is in sealing connection with the threaded plug 31 with a sealing rubber ring, the upper end of the plugging sleeve 30 is connected with the lower end of the secondary reaction chamber 22, and the lower end of the plugging sleeve 30 is connected with the sieve tube 4.
The lower end of the plugging joint 3 is in threaded connection with the screen pipe 4, and the screen pipe 4 is in threaded connection with the gun tail 5; the plugging joint 3 is used for connecting the screen pipe 4, and also is used for isolating the secondary reaction chamber 22 from the screen pipe 4 and sealing the secondary reaction chamber 22, so that the secondary reaction chamber 22 becomes a sealed container.
When the second-stage reaction is carried out by the fully non-explosive unblocking, the pressure of the second-stage reaction chamber 22 reaches a certain threshold value, the shear pin 32 is sheared and pushed downwards to push out the piston 33, and the reaction heat and the generated high-pressure in the second-stage reaction chamber 22 can act on the operation well section through the screen pipe 4 instantaneously to unblock and fracture the oil-water well.
The container tube 212 of the primary reaction chamber 21 is made of metal or other organic material that can be ablated at high temperature. The outer container cylinder 221 of the secondary reaction chamber 22 is a 32CrMo4 seamless alloy steel pipe or a high-pressure-resistant pipe, and the wall thickness of the outer container cylinder is not less than 10mm; the screen pipe 4 is a high-strength seamless alloy steel pipe, and a plurality of round holes with the diameter of 20mm are formed in the pipe body; the electric heating element 213 comprises a nichrome wire and an insulating tube, the nichrome wire is wound on the insulating tube with the length of 100mm, the manufactured electric heating element 213 is centrally adhered and fixed at the axle center of the lower end of the upper joint 211 of the primary reaction chamber 21 by using hot melt adhesive, a wire harness channel is arranged on the upper joint 211, the wire harness passes through the wire harness channel and is connected with the electric heating element 213 and an ignition device, and 220V voltage and 5A current are used for triggering the thermochemical reaction of the primary energy release medicament 215 during operation.
Before operation, firstly opening a screw plug block 214, opening a primary medicament filling port, filling the mixed primary energy-releasing medicament 215 into the primary reaction chamber 21 from the primary medicament filling port, and then filling the screw plug block 214 to seal the primary reaction chamber 21; the primary reaction chamber 21 filled with the primary energy release medicament 215 is connected with the gun head 1, then the container outer barrel 221 is connected with the gun head 1, the plugging connector 3 is assembled at the lower end of the container outer barrel 221, the plugging connector 3 is connected with the screen pipe 4, the screen pipe 4 is connected with the gun tail 5, then the threaded plug 31 is opened, the secondary energy release medicament 222 is filled into the secondary reaction chamber 22, and the assembled full non-explosive energy release plug removing device can enter an operation site to implement operation construction.
When in operation construction, the cable horse head is connected to the gun head 1 of the device, then the cable is used for lifting the full non-explosive energy release blocking remover to convey the full non-explosive energy release blocking remover to a downhole operation interval, the control panel is operated on the ground, the device is calibrated by using the magnetic positioning instrument, the ignition device is started after the depth is fixed accurately, the primary energy release agent 215 of the primary reaction chamber 21 is excited by the electric heating element 213 to perform thermochemical reaction, after the primary reaction is completed, the container tube 212 is broken by reaction heat and pressure, the reaction product is further subjected to secondary reaction with the secondary energy release agent 222 of the secondary reaction chamber 22, high heat and carbon dioxide gas are continuously generated, the test result shows that the temperature in the reaction chamber reaches more than 1000 ℃, the pressure is more than 10, the shear pin 32 is sheared under the action of the energy, and all the energy of the reaction chamber is pushed downwards through the round holes formed in the screen pipe 4, so that the oil-water well is unblocked or reformed.
In order to further verify the use effect of the plugging removal agent prepared in the above embodiment 1 on plugging removal or fracturing reformation of an oil-water well, a pressure monitoring instrument (PT instrument for short) is hung at the lower end of a using device, namely, is connected at the lower end of a gun tail 5 during field application, pressure during action is recorded through well liquid pressure transmission, the PT instrument is taken out after the well action is completed, and the curve of pressure change with time recorded by the PT instrument is replayed on the ground through a computer, as shown in fig. 9, the result shows that the test peak pressure reaches 70MPa (the peak pressure measured for many times reaches 70 MPa) and exceeds the fracture pressure (10-30 MPa) of a stratum, and the field application effect is achieved.
After the operation is completed, the recovery cable is retracted to fully retract the non-explosive energy release blocking remover, so that the blocking removal or fracturing modification of the oil-water well is completed.
The full non-explosive energy release blocking remover is used for pressure blocking removal and reconstruction of an oil-water well, and a reaction chamber of the blocking remover consists of a first-stage reaction chamber 21 and a second-stage reaction chamber 22. The primary reaction chamber 21 is an independent closed chamber structure, the secondary reaction chamber 22 is a high-pressure container, and the container wall is a thick-wall alloy steel tube. The tube body of the sieve tube 4 is provided with a plurality of round holes with the diameter of 20mm for discharging energy of thermochemical reaction. Meanwhile, the screen pipe 4 can collect residues possibly generated after the operation of the primary reaction chamber 21, so that the occurrence of down-hole falling objects is prevented.
While the invention has been described in terms of preferred embodiments, it is not intended to be limited thereto, but rather to enable any person skilled in the art to make various changes and modifications without departing from the spirit and scope of the present invention, which is therefore to be limited only by the appended claims.

Claims (7)

1. The device is characterized by comprising a gun head, a reaction chamber, a plugging connector, a screen pipe and a gun tail, wherein the reaction chamber comprises a primary reaction chamber and a secondary reaction chamber, the upper ends of the primary reaction chamber and the secondary reaction chamber are connected with the gun head, the primary reaction chamber is arranged in the secondary reaction chamber, the lower end of the secondary reaction chamber is connected with the plugging connector, the lower end of the plugging connector is connected with the screen pipe, the lower end of the screen pipe is connected with the gun tail, the upper end and the lower end of the primary reaction chamber are sealed, the primary reaction chamber is filled with the primary energy-releasing medicament, an electric heating element is arranged in the primary reaction chamber and is connected with an ignition device, the upper end and the lower end of a container outer barrel of the secondary reaction chamber are respectively sealed through the gun head and the plugging connector, the container outer barrel is filled with the secondary energy-releasing medicament, a piston is arranged in a central hole of the plugging connector, and a plurality of round holes are formed in the radial direction of the screen pipe;
the primary energy release agent comprises aluminum powder and ferric oxide powder;
the secondary energy release medicament comprises sodium carbonate and water;
the weight ratio of the aluminum powder to the ferric oxide powder in the primary energy release medicament is (2-4): (6-8);
the weight of sodium carbonate in the secondary energy release medicament is 1.11 times of that of aluminum powder in the primary energy release medicament, and the weight of water is 2 times of that of sodium carbonate.
2. The device for using the non-explosive energy release blocking remover according to claim 1, wherein the weight ratio of the aluminum powder to the ferric oxide powder in the primary energy release agent is 2:8.
3. the device for using the non-explosive energy release blocking remover according to claim 1, wherein the weight ratio of the aluminum powder to the ferric oxide powder in the primary energy release agent is 3:7.
4. the device for using the non-explosive energy release blocking remover according to claim 1, wherein the weight ratio of the aluminum powder to the ferric oxide powder in the primary energy release agent is 4:6.
5. the device for using a non-explosive energy releasing blocking remover according to claim 1, wherein the aluminum powder is spherical with a particle size of 3-6 nm; the ferric oxide powder is spherical with the particle size of 3-6 nm.
6. The device for using a non-explosive energy release blocking remover according to any one of claims 1 to 5, wherein the preparation method of the first-order energy release agent is as follows: mixing ferric oxide powder and aluminum powder in a powder mixer for not less than 50min;
the preparation method of the secondary energy release medicament comprises the following steps: after heating the water to 50 ℃, pouring the water into sodium carbonate and stirring the water uniformly.
7. The application of the non-explosive energy release blocking remover according to claim 1, wherein the primary energy release agent and the secondary energy release agent are filled in the non-explosive energy release blocking remover for blocking removal or fracturing modification of an oil-water well.
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CN117343709B (en) * 2023-12-05 2024-02-27 大庆金祥寓科技有限公司 Non-explosive energy release blocking removal medicament and preparation method and application thereof
CN117365419B (en) * 2023-12-05 2024-02-27 大庆金祥寓科技有限公司 Full non-explosive energy release blocking remover

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