CN112983342B - Reinforcing device and reinforcing method for preventing and treating collapse of broken stratum - Google Patents
Reinforcing device and reinforcing method for preventing and treating collapse of broken stratum Download PDFInfo
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- CN112983342B CN112983342B CN201911289259.1A CN201911289259A CN112983342B CN 112983342 B CN112983342 B CN 112983342B CN 201911289259 A CN201911289259 A CN 201911289259A CN 112983342 B CN112983342 B CN 112983342B
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000003814 drug Substances 0.000 claims abstract description 106
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 102
- 239000003999 initiator Substances 0.000 claims abstract description 102
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 239000000178 monomer Substances 0.000 claims abstract description 41
- 229920000642 polymer Polymers 0.000 claims abstract description 41
- 238000004880 explosion Methods 0.000 claims abstract description 30
- 239000002360 explosive Substances 0.000 claims abstract description 8
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 30
- 238000002955 isolation Methods 0.000 claims description 19
- 238000003801 milling Methods 0.000 claims description 18
- 239000011435 rock Substances 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 14
- 239000002775 capsule Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
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- 238000012546 transfer Methods 0.000 claims description 7
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 16
- 239000003208 petroleum Substances 0.000 abstract description 2
- 108010066278 cabin-4 Proteins 0.000 description 29
- 239000000463 material Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000007596 consolidation process Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
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- 229910000799 K alloy Inorganic materials 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
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- 239000003345 natural gas Substances 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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- 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)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The application discloses a reinforcing device and a reinforcing method for preventing and treating collapse of a broken stratum, and belongs to the technical field of petroleum drilling. This reinforcing apparatus includes: the connecting module is connected with the transmission module and the drill rod; the medicament cabin is positioned inside the transmission module; the control module is connected with the medicament cabin; the agent cabin comprises a curing agent cabin and an initiator cabin; the curing agent cabin and the initiator cabin are annular cabins, and the curing agent cabin is sleeved outside the initiator cabin; the drill rod drives the connecting module to move downwards, when the medicament cabin is delivered to a broken stratum, the drill rod conveys polymer monomers to the broken stratum, the control module controls at least two initiators in the initiator cabin to be mixed, explosion occurs, the medicament cabin is exploded and cracked by high pressure generated by explosion, the polymer monomers are contacted with curing agents in the curing agent cabin, an explosive polymerization reaction is generated under the condition of high temperature and high pressure, expansion occurs and is extruded into gaps of the broken stratum, and the broken stratum is reinforced.
Description
Technical Field
The application relates to the technical field of petroleum drilling, in particular to a reinforcing device and a reinforcing method for preventing and treating collapse of a broken stratum.
Background
At present, with the increasing demand of people for oil and natural gas, the drilling technology is widely applied. In the drilling process of petroleum and natural gas exploration and development, a broken stratum zone is frequently drilled, broken rocks in a well wall in a shaft easily fall and collapse, accidents such as drilling sticking, burying of a drilling tool, side drilling during filling can be caused seriously, and the exploration and development process of oil and gas resources is seriously influenced.
Disclosure of Invention
The embodiment of the application provides a reinforcing device and a reinforcing method for preventing and treating collapse of a broken stratum, and the problem of the phenomenon of collapse of the broken stratum in the related art can be solved. The technical scheme provided by the embodiment of the application is as follows:
according to a first aspect that this application embodiment provided, provide a reinforcing apparatus that prevention and cure broken stratum collapses, reinforcing apparatus includes: the device comprises a control module, a connecting module, a transmission module and a medicament cabin;
the connecting module is connected with the transmission module and the drill rod;
the medicament capsule is located inside the transfer module;
the control module is connected with the medicament cabin;
the medicament cabin comprises a curing agent cabin and an initiator cabin; the curing agent cabin is used for storing curing agents; the initiator cabin is used for storing at least two initiators;
the curing agent cabin and the initiator cabin are annular cabins, and the curing agent cabin is sleeved on the outer side of the initiator cabin;
the drill rod drives the connecting module to move downwards, when the agent cabin is delivered to a broken stratum, the drill rod conveys polymer monomers to the broken stratum, the control module controls at least two initiators in the initiator cabin to be mixed and explode, high pressure generated by explosion explodes the agent cabin, a curing agent in the curing agent cabin is in contact with the polymer monomers, an explosion reaction is generated under the conditions of high temperature and high pressure, the curing agent expands and extrudes into gaps of the broken stratum, and the curing agent cabin and stratum rocks in the broken stratum are bonded into a whole to reinforce the broken stratum.
In one possible implementation, the initiator capsule comprises at least two empty slots and at least one isolation plate, the at least two empty slots are separated by the at least one isolation plate, and each empty slot stores one initiator;
the control module comprises a ground controller, a cable and an electric control switch;
the ground controller is connected with the electric control switch through the cable;
the electric control switch is connected with the at least one isolation plate;
the ground controller is used for controlling the electric control switch to be opened through the cable, and the electric control switch controls the at least one isolation plate to be opened, so that the at least two initiators in the initiator cabin are mixed and explode.
In another possible implementation manner, the control module further comprises a pressure sensor, and the pressure sensor is connected with the ground controller;
the pressure sensor is located inside the transmission module and is used for transmitting the detected pressure to the ground controller.
In another possible implementation manner, the connecting module comprises a connecting body, a connecting end, a pin and a ball seat;
the connecting body is connected with the transmission module and is connected with the drill rod through the connecting end;
the pin is positioned at the upper end of the medicament cabin and connected with the connecting body and the medicament cabin, and the ball seat is fixedly arranged on the inner wall of the medicament cabin;
the connecting body is of an annular structure, and the inner cavity of the medicament cabin is communicated with the inner cavity of the connecting body;
the valve ball entering the reinforcing device is erected on the ball seat to block the inner cavity of the medicament cabin, so that the reinforcing device is sealed;
the inner chamber is pressurized, the pin is cut off, the medicament cabin falls, the top of the medicament cabin is clamped with the bottom of the transmission module, the ball seat is broken, the valve ball drops and opens the inner chamber of the medicament cabin, the drill rod passes through the inner chamber and conveys the polymer monomer to the stratum, the control module controls at least two initiators in the initiator cabin to be mixed and explode, the high pressure generated by explosion leads to the explosive cracking of the medicament cabin, the curing agent in the curing agent cabin is contacted with the polymer monomer, an explosive polymerization reaction is generated under the condition of high temperature and high pressure, and the expansion extrusion is carried out in a gap of the broken stratum, and the inner chamber is bonded with the stratum rock in the broken stratum into a whole to reinforce the broken stratum.
In another possible implementation, the connection ends include an upper connection end and a lower connection end;
the upper connecting end is in threaded connection with the drill rod;
the lower connecting end is in threaded connection with the connecting body.
In another possible implementation, the transmission module comprises a shell, a limiting sealing groove and milling teeth;
the lower end of the shell is bent inwards to form a limiting sealing groove, and the protruding structure at the upper end of the medicament cabin is clamped above the limiting sealing groove;
the milling teeth are located below the limiting sealing grooves and rotate to remove drill chip settled sand below the reinforcing device.
In another possible implementation, the reinforcement device further comprises a sealing ring (5);
the sealing ring is located in a gap between the transfer module and the medicament compartment.
According to a second aspect provided by an embodiment of the present application, there is provided a reinforcing method for preventing a fractured formation from collapsing, which is applied to the reinforcing device of the first aspect, and the reinforcing device includes: the device comprises a control module, a connecting module, a transmission module and a medicament cabin; the connecting module is connected with the transmission module and the drill rod; the medicament cabin comprises a curing agent cabin and an initiator cabin; the curing agent cabin is used for storing curing agents; the initiator cabin is used for storing at least two initiators; the curing agent cabin and the initiator cabin are annular cabins, and the curing agent cabin is sleeved outside the initiator cabin;
the method comprises the following steps:
the drill rod drives the connecting module to move downwards, when the agent cabin is delivered to a broken stratum, the drill rod conveys polymer monomers to the broken stratum, the control module controls at least two initiators in the initiator cabin to be mixed and explode, high pressure generated by explosion explodes the agent cabin, a curing agent in the curing agent cabin is in contact with the polymer monomers, an explosion reaction is generated under the conditions of high temperature and high pressure, the curing agent expands and extrudes into gaps of the broken stratum, and the curing agent cabin and stratum rocks in the broken stratum are bonded into a whole to reinforce the broken stratum.
In one possible implementation, the initiator capsule comprises at least two empty slots and at least one partition plate, the at least two empty slots are separated by the at least one partition plate, and each empty slot stores one initiator; the control module comprises a ground controller, a cable and an electric control switch; the ground controller is connected with the electric control switch through the cable; the electric control switch is connected with the at least one isolation plate; the control module controls at least two initiators in the initiator cabin to mix and explode, and the control module comprises:
the ground controller controls the electric control switch to be opened through the cable, and the electric control switch controls the at least one isolation plate to be opened, so that the at least two initiators are mixed and explode.
In another possible implementation manner, the control module further comprises a pressure sensor, and the pressure sensor is connected with the ground controller; the pressure sensor is located inside the transmission module, the method further comprising:
the pressure sensor transmits the detected pressure to the surface controller.
In another possible implementation manner, the connecting module comprises a connecting body, a connecting end, a pin and a ball seat; the connecting body is connected with the transmission module and is connected with the drill rod through the connecting end; the pin is positioned at the upper end of the medicament cabin and connected with the connecting body and the medicament cabin, and the ball seat is fixedly arranged on the inner wall of the medicament cabin; the connecting body is of an annular structure, and the inner cavity of the medicament cabin is communicated with the inner cavity of the connecting body; the method further comprises the following steps:
the valve ball entering the reinforcing device is erected on the ball seat to block the inner cavity of the medicament cabin, so that the reinforcing device is sealed;
applying pressure to the inner cavity, cutting the pin, pushing the medicament cabin to move downwards, clamping the top of the medicament cabin with the bottom of the transmission module to form a closed space, continuing to suppress pressure to break the ball seat, dropping the valve ball and the ball seat, opening the inner cavity of the medicament cabin, conveying a polymer monomer to the broken stratum through the inner cavity by the drill rod, controlling at least two initiators in the initiator cabin to be mixed by the control module, exploding the medicament cabin by high pressure generated by explosion, contacting a curing agent in the curing agent cabin with the polymer monomer, generating an explosive polymerization reaction under the conditions of high temperature and high pressure, expanding and extruding into a gap of the broken stratum, bonding the curing agent cabin with stratum rocks in the broken stratum into a whole, and reinforcing the broken stratum;
in another possible implementation, the transmission module comprises a shell, a limiting sealing groove and milling teeth; the lower end of the shell is bent inwards to form a limiting sealing groove, and the protruding structure at the upper end of the medicament cabin is clamped above the limiting sealing groove; the milling teeth are located below the limiting sealing groove, and the method further comprises the following steps:
and the milling teeth rotate to remove the settled sand of the drill cuttings below the reinforcing device.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:
the embodiment of the application provides a reinforcing apparatus, connect transmission module and drilling rod through connecting module, the drilling rod drives connecting module downstream, it moves reinforcing apparatus downstream also to be, and when reaching broken stratum with the medicament cabin, the drilling rod stops moving, and the drilling rod carries the polymer monomer to broken stratum, two kind at least initiators in the control module control initiator cabin mix, the explosion takes place, the high pressure that the explosion produced explodes the medicament cabin and splits, the curing agent contact in polymer monomer and the curing agent cabin, produce the implosion reaction under the high temperature high pressure condition, take place the inflation and crowd into broken stratum gap, it is as an organic whole to bond with the stratum rock in the broken stratum, consolidate broken stratum, improve wall of a well stability fast, this reinforcing apparatus's simple structure, and is easy and simple to handle, and reinforced efficient.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic illustration of a reinforcing apparatus for preventing a fractured formation from collapsing, according to an exemplary embodiment;
FIG. 2 is a schematic illustration of a reinforcing apparatus for preventing a fractured formation from collapsing, according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating a consolidation method for preventing a fractured formation from collapsing, according to an example embodiment.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram illustrating a reinforcement device for preventing a fractured formation from collapsing according to an exemplary embodiment, where the reinforcement device includes: the device comprises a control module 1, a connecting module 2, a transmission module 3 and a medicament cabin 4.
The connection module 2 is connected with the transmission module 3, the connection module 2 is connected with the drill rod, the connection module 2 is respectively connected with the transmission module 3 and the drill rod, and the connection module 2 can connect the drill rod with the reinforcing device.
In a possible implementation, the connection module 2 may be screwed to the transmission module 3 and the drill rod, respectively, or the connection module 2 may be screwed to the drill rod, welded to the transmission module 3.
The medicament capsule 4 is located inside the transfer module 3 and the control module 1 is connected to the medicament capsule 4. And the control module 1 is located on the ground for controlling the opening of the medicament compartment 4.
The medicament cabin 4 comprises a curing agent cabin 403 and an initiating agent cabin 404, the curing agent cabin 403 and the initiating agent cabin 404 are annular cabins, and the curing agent cabin 403 is sleeved outside the initiating agent cabin 404.
In one possible implementation, the curing agent compartment 403 and the initiator compartment 404 constitute hollow concentric cylinders.
Wherein, the curing agent cabin 403 is used for storing curing agent; the curing agent may be an amino-based basic curing agent material such as aliphatic polyamine or aromatic polyamine. The initiator tank 404 is used to store at least two initiators. For example, the at least two initiators are sodium potassium alloy and water, and the sodium potassium alloy NaK and water undergo a very violent exothermic reaction after being mixed, so that high-temperature and large-amount hydrogen gas and sodium hydroxide and potassium hydroxide alkaline substances are generated.
Wherein, the materials of the curing agent chamber 403 and the initiator chamber 404 are glass or other types of materials.
After the connection module 2 is connected with the drill rod, the drill rod drives the connection module 2 to move downwards, namely, the reinforcing device is driven to move downwards, when the medicament cabin 4 is delivered to a broken stratum, the drill rod stops moving, the drill rod conveys a polymer monomer to the broken stratum, the control module 1 controls at least two initiators in the initiator cabin 404 to be mixed and explode, high pressure generated by explosion explodes the medicament cabin 4, the polymer monomer is contacted with a curing agent in the curing agent cabin 403, an implosion reaction is generated under the conditions of high temperature and high pressure, and the polymer monomer expands and extrudes into a gap of the broken stratum and is bonded with stratum rocks in the broken stratum into a whole to reinforce the broken stratum.
The polymer monomer material may be an environment-friendly thermosetting resin material, such as an epoxy resin material, or other types of materials.
The embodiment of the application provides a reinforcing apparatus, connect transmission module and drilling rod through connecting module, the drilling rod drives connecting module downstream, it moves reinforcing apparatus downstream also to be, and when reaching broken stratum with the medicament cabin, the drilling rod stops moving, and the drilling rod carries the polymer monomer to broken stratum, two kind at least initiators in the control module control initiator cabin mix, the explosion takes place, the high pressure that the explosion produced explodes the medicament cabin and splits, the curing agent contact in polymer monomer and the curing agent cabin, produce the implosion reaction under the high temperature high pressure condition, take place the inflation and crowd into broken stratum gap, it is as an organic whole to bond with the stratum rock in the broken stratum, consolidate broken stratum, improve wall of a well stability fast, this reinforcing apparatus's simple structure, and is easy and simple to handle, and reinforced efficient.
In one possible implementation, fig. 2 is a schematic structural diagram illustrating a reinforcement device according to an exemplary embodiment, and as shown in fig. 2, the initiator tank 404 includes at least two empty slots 401 and at least one isolation plate 402, the at least two empty slots 401 are separated by the at least one isolation plate 402, and each empty slot 401 stores one initiator.
The at least one baffle 402 is located within the initiator capsule 404, dividing the initiator capsule 404 into at least two empty slots 401. For example, when only one isolation plate 402 is included in the initiator capsule 404, then the initiator capsule 404 includes two empty slots 401. And when two insulation panels 402 are included in the initiator tank 404, the initiator tank 404 includes three empty tanks 401.
In addition, the control module 1 comprises a ground controller 101, a cable 102 and an electronic control switch 103, the ground control module 1 is located on the ground, the ground controller 101 is connected with the electronic control switch 103 through the cable 102, and the electronic control switch 103 is connected with at least one isolation plate 402.
When at least one isolation board 402 in the initiator cabin 404 needs to be opened, the ground controller 101 controls the electric control switch 103 to be opened through the cable 102, and the electric control switch 103 controls at least one isolation board 402 to be opened, so that at least two initiators in the initiator cabin 404 are mixed and explode.
In one possible implementation, the control module 1 further comprises a pressure sensor, which is connected to the surface controller 101. The pressure sensor is located inside the transmission module 3.
In another possible implementation, the pressure sensor is located on the inner surface of the top end of the transmission module 3, or may also be located elsewhere.
The pressure sensor is used for measuring the pressure inside the transmission module 3 and transmitting the measured pressure inside the transmission module 3 to the ground controller 101, and the ground controller 101 can display the pressure sent by the pressure sensor.
The pressure sensor provided by the embodiment of the application can measure the pressure inside the transmission module 3, transmits the pressure to the ground controller 101, and is displayed by the ground controller 101, when at least two initiators in the chemical agent cabin 4 are mixed and explode, the pressure inside the transmission module 3 can also increase, and when the pressure displayed by the ground controller 101 increases, the pressure sensor indicates that the at least two initiators in the chemical agent cabin 4 complete the explosion.
In another possible implementation, the pressure sensor is located inside the medicament compartment 4.
The pressure sensor is used for measuring the pressure inside the medicine cabin 4, and transmitting the measured pressure inside the medicine cabin 4 to the ground controller 101, so that the ground controller 101 can display the pressure sent by the pressure sensor.
The pressure sensor provided by the embodiment of the application can measure the pressure inside the medicament cabin 4, and transmits the pressure to the ground controller 101, and the ground controller 101 displays that when at least two initiators in the medicament cabin 4 are mixed and explode, the pressure inside the medicament cabin 4 can also increase, when the glass cabin body of the medicament cabin 4 is exploded, the pressure inside the medicament cabin 4 can decrease, and when the ground controller 101 detects that the pressure value inside the medicament cabin 4 is suddenly increased and then decreased, the explosion of at least two initiators in the medicament cabin 4 is completed.
In one possible implementation, referring to fig. 1, the connection module 2 includes a connection body 201, a connection end 202, a pin 203, and a ball seat 204, and the connection body 201 is connected to the transmission module 3 and connected to the drill pipe through the connection end 202.
The pin 203 is located at the upper end of the medicament compartment 4 and connected with the connecting body 201 and the medicament compartment 4, and the ball seat 204 is fixedly installed on the inner wall of the medicament compartment 4.
Moreover, the medicament cabin 4 is an annular cabin, the connecting body 201 is an annular structure, and the inner cavity of the medicament cabin 4 is communicated with the inner cavity of the connecting body 201, so that after the reinforcing device is lowered to the position of a broken stratum, a valve ball is thrown into the communicated inner cavity, the valve ball entering the reinforcing device is erected on the ball seat 204, the inner cavity of the medicament cabin 4 is blocked, and the reinforcing device is sealed.
In addition, pressure is applied to the inner cavity through the drill rod, the pin 203 is cut off, the medicament cabin 4 falls, the top of the medicament cabin 4 is clamped with the bottom of the transmission module 3, the ball seat 204 is broken by continuously applying pressure, the valve ball falls off the ball seat 204, the inner cavity of the medicament cabin 4 is opened, the drill rod conveys polymer monomers to the broken stratum through the inner cavity, the control module 1 controls at least two initiators in the initiator cabin 4 to be mixed and explode, high pressure generated by explosion explodes the medicament cabin 4, the polymer monomers are contacted with curing agents in the curing agent cabin 403, an explosion reaction is generated under the high-temperature and high-pressure condition, the polymer monomers expand and squeeze into gaps of the broken stratum, and are bonded with stratum rocks in the broken stratum into a whole to reinforce the broken stratum.
In one possible implementation, the connection end 202 includes an upper connection end and a lower connection end. The upper connecting end is in threaded connection with the drill rod, and the lower connecting end is in threaded connection with the connecting body 201.
Wherein, should go up the link and the link down can be the screw thread, or can be the link of other types.
In a possible implementation manner, referring to fig. 1, the transmission module 3 includes a housing 301, a limiting seal groove 302 and a milling tooth 303, a lower end of the housing 301 is bent inward to form the limiting seal groove 302, and a protruding structure at an upper end of the medicament compartment 4 is clamped above the limiting seal groove 302.
The housing 301 may be made of stainless steel or other materials, and the hardness of the housing 301 needs to be stronger than that of the housing of the medicine compartment 4.
After the drill rod drives the reinforcing device to move to the position of a broken stratum gap, pressure is applied to the reinforcing device, the medicament cabin 4 falls off, and when the protruding structure at the upper end of the medicament cabin 4 is in contact with the upper part of the limiting sealing groove 302, the medicament cabin 4 is clamped in the limiting sealing groove 302.
In addition, milling teeth 303 are located below the restriction seal groove 302. In the process that the drill rod drives the reinforcing device to move downwards, the drill rod drives the reinforcing device to rotate, the milling teeth 303 on the reinforcing device rotate, the drill cuttings sand setting below the reinforcing device is cleared, and the soil in the stratum is prevented from blocking the reinforcing device to move downwards.
In one possible implementation, see fig. 1, the reinforcement means further comprises a sealing ring 5, which sealing ring 5 is located in the gap between the transfer module 3 and the medicament capsule 4 and prevents pressure from being applied by the space between the transfer module 3 and the medicament capsule 4.
Wherein, the sealing ring can be a metal sealing ring or other types of sealing rings.
It should be noted that at least two structures in the above embodiments may be combined with each other, and the present application is not limited specifically.
In a possible implementation manner, when the reinforcing device includes each structure in the above embodiments, after the reinforcing device is assembled, the reinforcing device is moved to the position of the broken stratum through a drill rod, in the moving process, the milling teeth 303 are rotated by rotation, the milling teeth 303 can repair the broken stratum, sand and mud are cleaned, after the reinforcing device is moved to the position of the broken stratum gap, a valve ball is put into the reinforcing device, the valve ball is erected on a ball seat 204, the reinforcing device is sealed, pressure is applied to the valve ball, due to the action of the pressure, a pin 203 is sheared, a medicament cabin 4 falls, a sealing ring 5 in the medicament cabin 4 is clamped with a limiting sealing groove 302, the pressure is continuously applied, the ball seat 204 and the valve ball fall, a polymer monomer material is fed into the reinforcing device through the drill rod, a wellhead is sealed by using a plugging device on the ground, an electronic control switch 103 is opened through a ground controller 101, the electronic control switch 103 opens at least one isolation plate 402 in an initiator cabin 404, a sodium-potassium alloy is mixed with water to generate explosion, high-pressure generated by the explosion, the medicament cabin 4 is cracked, and the polymer monomer is expanded to react with the high-temperature rock-breaking stratum, and the reinforcing agent is extruded into the broken stratum gap.
Fig. 3 is a flowchart illustrating a consolidation method for preventing and treating a fractured formation from collapsing according to an exemplary embodiment, where the consolidation method is applied to a consolidation apparatus for preventing and treating a fractured formation from collapsing, as shown in fig. 3, and the consolidation apparatus includes: the device comprises a control module, a connecting module, a transmission module and a medicament cabin; the connecting module is connected with the transmission module and the drill rod; the agent cabin comprises a curing agent cabin and an initiator cabin; the curing agent cabin is used for storing curing agent; the initiator cabin is used for storing at least two initiators; the curing agent cabin and the initiator cabin are annular cabins, and the curing agent cabin is sleeved outside the initiator cabin; the method further comprises the following steps:
311. the drill rod drives the connecting module to move downwards.
312. When the medicament cabin is delivered to a broken stratum, the drill rod delivers the polymer monomer to the broken stratum.
313. The control module controls at least two initiators in the initiator cabin to be mixed, explosion occurs, and the high pressure generated by the explosion explodes the agent cabin.
314. The polymer monomer contacts with the curing agent in the curing agent cabin, and the polymer monomer generates a implosion reaction under the conditions of high temperature and high pressure, expands and extrudes into cracks of the broken stratum, and is bonded with stratum rocks in the broken stratum into a whole to reinforce the broken stratum.
The method provided by the embodiment of the application, the transmission module is connected with the drill rod through the connection module, the drill rod drives the connection module to move downwards, namely, the reinforcing device is driven to move downwards, when the agent cabin is delivered to a broken stratum, the drill rod stops moving, the drill rod conveys polymer monomers to the broken stratum, at least two initiators in the initiator cabin are controlled by the control module to be mixed, explosion occurs, high pressure generated by explosion explodes the agent cabin, the polymer monomers are contacted with a curing agent in the curing agent cabin, an explosion reaction is generated under the conditions of high temperature and high pressure, expansion and extrusion are generated in gaps of the broken stratum, the polymer monomers are bonded with stratum rocks in the broken stratum into a whole, the broken stratum is reinforced, the stability of a well wall is rapidly improved, the reinforcing device is simple in structure and convenient to operate, and the reinforcing efficiency is high.
In one possible implementation, the initiator tank comprises at least two empty tanks and at least one partition plate, the at least two empty tanks are separated by the at least one partition plate, and each empty tank stores one initiator; the control module comprises a ground controller, a cable and an electric control switch; the ground controller is connected with the electric control switch through a cable; the electric control switch is connected with at least one isolation plate; the control module controls at least two initiators in the agent compartment to mix and explode, including:
the ground controller controls the electric control switch to be turned on through the cable, and the electric control switch controls at least one isolation plate to be turned on, so that at least two initiators are mixed to explode.
In one possible implementation manner, the control module further comprises a pressure sensor, and the pressure sensor is connected with the ground controller; the pressure sensor is located inside the transmission module, and the method further comprises:
the pressure sensor transmits the detected pressure to the surface controller.
In another possible implementation manner, the connecting module comprises a connecting body, a connecting end, a pin and a ball seat; the connecting body is connected with the transmission module, and the connecting end is connected with the drill rod; the pin is positioned at the upper end of the medicament cabin and is connected with the connecting body and the medicament cabin, and the ball seat is fixedly arranged on the inner wall of the medicament cabin; the connecting body is of an annular structure, and the inner cavity of the medicament cabin is communicated with the inner cavity of the connecting body; the method further comprises the following steps:
the valve ball entering the reinforcing device is erected on the ball seat to block the inner cavity of the medicament cabin, so that the reinforcing device is sealed;
applying pressure to the inner cavity to cut the pin and push the agent cabin to fall, clamping the top of the agent cabin with the bottom of the transmission module to form a closed space, continuously applying pressure to break the ball seat, dropping the valve ball and the ball seat to open the inner cavity of the agent cabin, conveying a polymer monomer to a broken stratum through the inner cavity by a drill rod, controlling at least two initiators in the initiator cabin to be mixed by the control module to explode, exploding the agent cabin by high pressure generated by explosion, contacting the polymer monomer with a curing agent in the curing agent cabin, generating an explosive reaction under the conditions of high temperature and high pressure, expanding and extruding the polymer monomer into a broken stratum gap, bonding the polymer monomer with stratum rocks in the broken stratum into a whole, and reinforcing the broken stratum;
in another possible implementation, the transmission module comprises a shell, a limiting sealing groove and milling teeth; the lower end of the shell is bent inwards to form a limiting sealing groove, and the protruding structure at the upper end of the medicament cabin is clamped above the limiting sealing groove; the milling teeth are positioned below the limiting sealing groove, and the method further comprises the following steps:
and (5) the milling teeth rotate to remove the drilling cuttings and the settled sand below the reinforcing device.
The above description is only for facilitating the understanding of the technical solutions of the present application by those skilled in the art, and is not intended to limit the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. A reinforcing apparatus for preventing and treating a broken ground layer from collapsing, the reinforcing apparatus comprising: the device comprises a control module (1), a connecting module (2), a transmission module (3) and a medicament cabin (4);
the connecting module (2) is connected with the transmission module (3), and the connecting module (2) is connected with a drill rod;
the medicament compartment (4) is located inside the transfer module (3);
the control module (1) is connected with the medicament cabin (4);
the medicament cabin (4) comprises a curing agent cabin (403) and an initiating agent cabin (404); the curing agent cabin (403) is used for storing curing agent; the initiator tank (404) is used for storing at least two initiators;
the curing agent cabin (403) and the initiator cabin (404) are annular cabins, and the curing agent cabin (403) is sleeved outside the initiator cabin (404);
the drill rod drives the connecting module (2) to move downwards, when the agent cabin (4) is conveyed to a broken stratum, the drill rod conveys polymer monomers to the broken stratum, the control module (1) controls at least two initiators in the initiator cabin (404) to be mixed and explode, high pressure generated by explosion is used for exploding the agent cabin (4), a curing agent in the curing agent cabin (403) is in contact with the polymer monomers to generate an explosive polymerization reaction under the condition of high temperature and high pressure, and the curing agent expands and extrudes into gaps of the broken stratum to be bonded with stratum rocks in the broken stratum into a whole to reinforce the broken stratum.
2. The reinforcement device according to claim 1, characterized in that the initiator tank (404) comprises at least two empty tanks (401) and at least one insulation plate (402), the at least two empty tanks (401) being separated by the at least one insulation plate (402), each empty tank (401) having one initiator stored therein;
the control module (1) comprises a ground controller (101), a cable (102) and an electric control switch (103);
the ground controller (101) is connected with the electric control switch (103) through the cable (102);
the electric control switch (103) is connected with the at least one isolation plate (402);
the ground controller (101) is used for controlling the electric control switch (103) to be opened through the cable (102), and the electric control switch (103) is used for controlling the at least one isolation plate (402) to be opened, so that the at least two initiators in the initiator cabin (404) are mixed and explode.
3. The reinforcement device according to claim 2, characterized in that the control module (1) further comprises a pressure sensor connected to the ground controller (101);
the pressure sensor is located inside the transmission module (3) for transmitting the detected pressure to the surface controller (101).
4. The reinforcement device according to claim 1, characterized in that the connection module (2) comprises a connection body (201), a connection end (202), a pin (203) and a ball seat (204);
the connecting body (201) is connected with the transmission module (3) and is connected with the drill rod through the connecting end (202);
the pin (203) is positioned at the upper end of the medicament cabin (4) and connected with the connecting body (201) and the medicament cabin (4), and the ball seat (204) is fixedly arranged on the inner wall of the medicament cabin (4);
the connecting body (201) is of an annular structure, and the inner cavity of the medicament cabin (4) is communicated with the inner cavity of the connecting body (201);
a valve ball entering the reinforcing device is erected on the ball seat (204) to seal the inner cavity of the medicament cabin (4) so as to seal the reinforcing device;
applying pressure to the inner cavity, cutting the pin (203), dropping the medicament cabin (4), clamping the top of the medicament cabin (4) with the bottom of the transmission module (3), continuously applying pressure to break the ball seat (204), dropping the valve ball with the ball seat (204), opening the inner cavity of the medicament cabin (4), conveying the polymer monomer to the broken stratum through the inner cavity, controlling at least two initiators in the initiator cabin (404) to be mixed by the control module (1), exploding with the high pressure generated by explosion, exploding the medicament cabin (4), contacting the curing agent in the curing agent cabin (403) with the polymer monomer, generating an explosive reaction under the condition of high temperature and high pressure, expanding and extruding into the gap of the broken stratum, bonding the rock stratum in the broken stratum into a whole, and reinforcing the broken stratum.
5. The reinforcement device according to claim 4, characterized in that the connection ends (202) comprise an upper connection end and a lower connection end;
the upper connecting end is in threaded connection with the drill rod;
the lower connecting end is in threaded connection with the connecting body (201).
6. The reinforcement device according to claim 1, characterized in that the transmission module (3) comprises a housing (301), a containment seal groove (302) and milling teeth (303);
the lower end of the shell (301) is bent inwards to form a limiting sealing groove (302), and the protruding structure at the upper end of the medicament cabin (4) is clamped above the limiting sealing groove (302);
the milling teeth (303) are located below the limiting sealing groove (302), and the milling teeth (303) rotate to remove drill cuttings and settled sand below the reinforcing device.
7. The reinforcement device according to claim 1, characterized in that it further comprises a sealing ring (5);
the sealing ring (5) is located in a gap between the transfer module (3) and the medicament capsule (4).
8. A reinforcement method for preventing and treating collapse of a broken stratum is characterized by being applied to a reinforcement device for preventing and treating collapse of a broken stratum, and the reinforcement device comprises: the device comprises a control module, a connecting module, a transmission module and a medicament cabin; the connecting module is connected with the transmission module and the drill rod; the medicament cabin comprises a curing agent cabin and an initiator cabin; the curing agent cabin is used for storing curing agents; the initiator cabin is used for storing at least two initiators; the curing agent cabin and the initiator cabin are annular cabins, and the curing agent cabin is sleeved outside the initiator cabin;
the method comprises the following steps:
the drill rod drives the connecting module to move downwards, when the agent cabin is delivered to a broken stratum, the drill rod conveys polymer monomers to the broken stratum, the control module controls at least two initiators in the initiator cabin to be mixed and explode, high pressure generated by explosion explodes the agent cabin, a curing agent in the curing agent cabin is in contact with the polymer monomers, an explosion reaction is generated under the conditions of high temperature and high pressure, the curing agent expands and extrudes into gaps of the broken stratum, and the curing agent cabin and stratum rocks in the broken stratum are bonded into a whole to reinforce the broken stratum.
9. The method of claim 8, wherein the initiator capsule comprises at least two pockets separated by at least one separator plate, each pocket having an initiator stored therein; the control module comprises a ground controller, a cable and an electric control switch; the ground controller is connected with the electric control switch through the cable; the electric control switch is connected with the at least one isolation plate; the control module controls at least two initiators in the initiator cabin to be mixed and explode, and the control module comprises:
the ground controller controls the electric control switch to be opened through the cable, and the electric control switch controls the at least one isolation plate to be opened, so that the at least two initiators are mixed and explode.
10. The method of claim 9, wherein the control module further comprises a pressure sensor coupled to the surface controller; the pressure sensor is located inside the transmission module, the method further comprising:
the pressure sensor transmits the detected pressure to the surface controller.
11. The method of claim 8, wherein the connection module comprises a connector, a connector end, a pin, and a ball seat; the connecting body is connected with the transmission module and is connected with the drill rod through the connecting end; the pin is positioned at the upper end of the medicament cabin and connected with the connecting body and the medicament cabin, and the ball seat is fixedly arranged on the inner wall of the medicament cabin; the connecting body is of an annular structure, and the inner cavity of the medicament cabin is communicated with the inner cavity of the connecting body; the method further comprises the following steps:
the valve ball entering the reinforcing device is erected on the ball seat to block the inner cavity of the medicament cabin, so that the reinforcing device is sealed;
applying pressure to the inner cavity, cutting the pin, pushing the medicament cabin to move downwards, clamping the top of the medicament cabin with the bottom of the transmission module to form a closed space, breaking the ball seat by continuing to suppress pressure, dropping the valve ball and the ball seat, opening the inner cavity of the medicament cabin, and conveying polymer monomers to the broken stratum through the inner cavity by the drill rod, the control module controls at least two initiators in the initiator cabin to be mixed and explode, high pressure generated by explosion explodes the agent cabin, curing agents in the curing agent cabin are in contact with the polymer monomer to generate an explosive polymerization reaction under the conditions of high temperature and high pressure, the curing agents expand and squeeze into gaps of the broken stratum, and the curing agents and the ground rock in the broken stratum are bonded into a whole to reinforce the broken stratum.
12. The method of claim 8, wherein the transmission module comprises a housing, a containment seal groove, and milled teeth; the lower end of the shell is bent inwards to form a limiting sealing groove, and the protruding structure at the upper end of the medicament cabin is clamped above the limiting sealing groove; the milling teeth are located below the limiting seal groove, and the method further comprises:
and the milling teeth rotate to remove the settled sand of the drill cuttings below the reinforcing device.
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