CN115372590A - Simulation device for deep in-situ film-forming quality-guaranteeing coring while drilling - Google Patents
Simulation device for deep in-situ film-forming quality-guaranteeing coring while drilling Download PDFInfo
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Abstract
The invention provides a simulation device for deep in-situ film-forming quality-guaranteeing coring while drilling, which relates to the technical field of scientific drilling of rocks and comprises a simulation cabin for placing a coring module and a rock core, wherein a pushing mechanism is hermetically arranged at the upper part of the simulation cabin and connected with the coring module, an air outlet is arranged at the upper part of one side of the simulation cabin, a liquid inlet is arranged on the simulation cabin below the air outlet, and a heating device is arranged outside the simulation cabin. When the existing simulation device simulates coring, a rock core moves upwards and enters a coring barrel, the actual coring process of the engineering is opposite, the coring process of the device is that the rock core is not moved, and a coring device moves downwards to obtain the rock core, which is the same as the actual coring process of the engineering.
Description
Technical Field
The invention relates to the technical field of scientific drilling of rocks, in particular to a simulation device for deep in-situ film formation while drilling quality guarantee coring.
Background
The method has great scientific significance for obtaining the rock core sample which accurately reflects the real information of the deep in-situ stratum, and can provide guidance for the accurate exploration and evaluation of deep oil and gas resources, the cause research of the deep oil and gas resources and the scientific exploration of deep microorganism life bodies. However, the conventional core-taking process lacks effective protection for the core during the whole process of core drilling, transferring and testing. The rock core directly contacts with the drilling fluid or the sealing fluid, so that the diffusion and the loss of substances in the pores of the rock core are difficult to avoid, the analysis result of the rock core is distorted, the original microorganisms are eliminated, and the mysterious course of deep life science cannot be researched. Therefore, there is a need to develop deep in situ quality-preserving, moisture-preserving, and light-preserving coring techniques. A layer of compact polymer solid film with high barrier property uniformly grows on the surface of the rock core in the dynamic process while drilling, and the film can store volatile oil and gas components in the rock core, keep the internal humidity stability of the rock core and keep the in-situ dark and lightless environment, so that a rock core sample storing the deep in-situ real state can be really obtained.
In order to realize the engineering application of the deep in-situ quality-guaranteeing and moisture-preserving light-preserving technology, a deep in-situ coring working condition state needs to be established in a laboratory at first, and the simulation verification of the film formation while drilling under the in-situ working condition is realized.
Disclosure of Invention
The invention aims to provide a simulation device for deep in-situ film-forming quality-guaranteeing coring while drilling, and solves the technical problems that the simulation device in the prior art has a structure and cannot well simulate the actual working state of coring.
The invention discloses a simulation device for deep in-situ film formation while drilling, quality guaranteeing and coring, which comprises a simulation cabin for placing a coring module and a core, wherein a pushing mechanism is hermetically arranged at the upper part of the simulation cabin and connected with the coring module, an air outlet is arranged at the upper part of one side of the simulation cabin, a liquid inlet is arranged on the simulation cabin below the air outlet, and a heating device is arranged outside the simulation cabin.
The working principle is as follows: when the core taking device is used, the core is firstly placed at the bottom of the simulation cabin, then the core taking module is placed, then the core taking module is connected with the pushing mechanism for sealing, medium liquid such as oil, water or drilling fluid is injected into the simulation cabin from the liquid inlet, air in the simulation cabin is discharged from the air outlet, and then the pushing mechanism is used for pushing the core taking module to simulate core taking. Through setting up heating device, can heat for the simulation cabin, simulate the temperature of true coring in-process, can obtain the more accurate operating condition of coring module. Through setting up push mechanism, can link with the module of coring, carry out the simulation of action of coring.
Further, the pushing mechanism is an oil cylinder pushing mechanism.
Furthermore, a piston is arranged in the oil cylinder pushing mechanism, and the oil cylinder is divided into an upper oil cylinder and a lower oil cylinder by the piston.
Through setting up the piston, can cut apart into last cylinder and lower hydro-cylinder with the hydro-cylinder, rethread oiling control piston reciprocates to control coring module carries out simulation work.
Furthermore, the piston is connected with a push rod, and the push rod is connected with the coring module.
Through setting up the push rod, the push rod can reciprocate under the drive of piston to drive the module of coring and carry out analog work.
Furthermore, the push rod is connected with the dynamic sealing mechanism through dynamic sealing.
Through setting up the dynamic seal and connecting, can guarantee that push rod top hydro-cylinder is isolated with bottom simulation cabin pressure, ensure that the push rod can stably reciprocate, trigger the simulation process of coring.
Furthermore, the number of the push rods is 2-4.
Through setting up push rod quantity, enable the module of coring and receive even driving force, enough guarantee the steady operation of module of coring.
Furthermore, the upper oil cylinder is connected with a first oil filling opening, and the first oil filling opening extends to the top of the upper oil cylinder.
Through setting up first oiling mouth and first oiling mouth extended position, can carry out the oiling to last cylinder, realize moving down of piston.
Further, the lower oil cylinder is connected with a second oil filling opening, and the second oil filling opening extends to the bottom of the lower oil cylinder.
Through setting up second oiling mouth and second oiling mouth extended position, can carry out the oiling to lower hydro-cylinder, realize moving up of piston.
Further, the heating device is a heating coil.
Through setting up heating coil, the controlled temperature that can be convenient, because the annular design, heating area is bigger, can produce a large amount of heats in the short time.
Furthermore, a dynamic sealing mechanism is arranged at the joint of the pushing mechanism and the simulation cabin.
By arranging the dynamic sealing mechanism, hydraulic oil of the oil cylinder at the upper part of the pushing mechanism is isolated from medium liquid in the simulation cabin, so that the liquid communication is prevented from losing pressure; meanwhile, the push rod mechanism is centered, so that the push rod can stably run.
Furthermore, a central rod hoisting platform is arranged in the simulation cabin.
Through setting up well core rod hoist and mount platform, the installation of the module of coring of being convenient for makes the module of coring can remain stable in the course of the work, well core rod quiescent behavior when the simulation is cored simultaneously.
Further, a core base is arranged at the bottom of the simulation cabin.
Through setting up the rock core base, can fix the rock core, guarantee that coring can stably go on.
Furthermore, a protective cover is sleeved outside the sealed cabin.
Through setting up the protection casing, isolated simulation cabin outer wall heating collar high temperature is scalded to prevent that pressure from revealing the hidden danger and causing the injury to the experimenter.
Furthermore, an upper sealing cover is arranged at the upper part of the protective cover.
And the high-pressure thread sealing is carried out on the top of the simulation cabin by arranging the upper sealing cover.
Further, a lower sealing cover is arranged at the lower part of the protective cover.
And the bottom of the simulation cabin is subjected to high-pressure thread sealing by arranging the lower sealing cover.
Furthermore, a fixing base used for fixing the protective cover is arranged at the bottom of the lower sealing cover.
Through setting up unable adjustment base, can be fixed the protection casing, guarantee the normal clear of simulation.
Furthermore, the coring module comprises a central rod, a self-isolation and dynamic migration-while-drilling mechanism is sleeved on the upper portion of the central rod, a coring barrel is sleeved outside the self-isolation and dynamic migration-while-drilling mechanism, a film-forming liquid self-triggering migration-while-drilling control mechanism is connected to the lower portion of the self-isolation and dynamic migration-while-drilling mechanism, a film-forming liquid in-situ self-polymerization curing film-forming control mechanism is connected to the lower portion of the film-forming liquid self-triggering migration-while-drilling control mechanism, and the self-isolation and dynamic migration-while-drilling mechanism is connected with the pushing mechanism.
By arranging the film forming liquid in-situ self-polymerization curing film forming control mechanism, the liquid A and the liquid B can be fully self-polymerized after being released, and the coring effect is ensured.
Further, the self-isolation and dynamic migration mechanism while drilling comprises two calandria pipes for self-isolation and self-migration of the film forming liquid, the upper part of each calandria pipe is connected with an extrusion mechanism, and the extrusion mechanism is connected with the pushing mechanism.
Through setting up extrusion mechanism and calandria, extrusion mechanism can extrude the calandria, drives A liquid and B liquid in the calandria and moves from the migration.
Further, the calandria is a flexible calandria.
Through setting up flexible calandria, be convenient for drive from the migration to A liquid and B liquid in the calandria.
Furthermore, the extrusion mechanism comprises a reducing piece, and the reducing piece is fixedly connected with the coring barrel.
During the use, the undergauge piece is in the drive of coring section of thick bamboo and is removed downwards, realizes the extrusion to the calandria, no longer increases extra push mechanism.
Further, the reducing part comprises a pressing section for pressing the pipe bank.
Through setting up the section of sticising, can sticiss the calandria on well core rod, avoid well core rod and calandria to produce relative slip.
Furthermore, the lower part of the compressing section is connected with an inclined section.
Through setting up the slope section, can reduce the resistance that the undergauge piece received, be convenient for the migration of A liquid and B liquid.
Further, the self-triggering migration control mechanism for the film-forming liquid while drilling comprises a liquid releasing flow channel, and the liquid releasing flow channel is used for communicating the two calandria.
Furthermore, the liquid releasing channel comprises two vertical channels which are respectively communicated with the two calandria, and the two vertical channels are communicated through a horizontal channel.
By providing the vertical flow channel and the horizontal flow channel, the liquid a and the liquid B can be self-polymerized to the horizontal flow channel through the vertical flow channel.
Furthermore, sealing elements are respectively arranged in the two vertical flow passages, and the sealing elements are connected with a moving mechanism which enables the sealing elements to displace.
Through setting up the sealing member, can keep apart the runner, avoid A liquid and B liquid to leak before coring, moving mechanism removes the sealing member after the beginning coring, can realize self polymerization, unpacks apart after the coring is accomplished and resets.
Further, the sealing element is a sealing piston.
Further, the moving mechanism comprises two sliding blocks, and grooves for placing the sealing elements are formed in the sliding blocks.
Through setting up slider and recess, the spout is at the in-process that removes, and the sealing member can fall into the recess automatically under gravity and A liquid B liquid pressure effect, realizes the intercommunication of vertical runner and horizontal runner.
Furthermore, a fixed base is connected between the two sliding blocks, and an elastic piece is connected between the fixed base and the sliding blocks.
Through setting up base and elastic component, the slider takes place the displacement under the effect of external force to extrude the elastic component, the slider makes the recess remove to the sealing member below after taking place the displacement, and the sealing member falls into the recess under the action of gravity, realizes the intercommunication of vertical runner and horizontal runner.
Further, the elastic member is a spring.
Furthermore, one end of each sliding block, which is close to the core barrel, is provided with an inclined plane, and the initial position of each sliding block is positioned on the core barrel moving path.
Through setting up the inclined plane, the in-process of coring barrel moving down contacts the inclined plane earlier, and the inclined plane inwards takes place the displacement under the motion of coring barrel, realizes the removal of slider.
Furthermore, the horizontal flow channel is also connected with one end of a converging flow channel, and the other end of the converging flow channel is connected with a film forming control mechanism for in-situ self-polymerization curing of film forming liquid.
Furthermore, a plurality of self-polymerization flow channels are arranged in the film-forming control mechanism for in-situ self-polymerization curing of the film-forming liquid, two adjacent self-polymerization flow channels are communicated with each other, and a static mixer is arranged in each self-polymerization flow channel.
Through setting up a plurality of self polymerization runners, can set up the static mixer of sufficient length, improve the stroke and the time of carrying out rotation, shearing and mixing recombination effect between A liquid and B liquid fluid, guarantee A liquid and B liquid trigger abundant self polymerization filming reaction.
Further, the static mixer is of SV type, SL type or SX type.
Furthermore, the number of the self-polymerization flow channels is 5-10.
By setting the number of the self-polymerization flow channels, enough strokes can be provided to enable the liquid A and the liquid B to be self-polymerized, and the liquid A and the liquid B can be fully self-polymerized.
And the solution A and the solution B are fully self-polymerized to form a film forming solution, the film forming solution covers the top, side and bottom spaces between the core barrel and the core while drilling, and the film forming solution is solidified to form a protective film after a period of time.
Compared with the prior art, the invention has the beneficial effects that:
1. when the existing simulation device simulates coring, a core moves upwards and enters a coring barrel, the process is opposite to the actual process of engineering coring, the core is not moved in the coring process of the device, a coring device moves downwards to obtain the core, the process is the same as the actual process of engineering coring, and the simulation degree of the coring process is improved;
2. through setting up heating device, can heat for the simulation cabin, simulate the temperature of true coring in-process, can obtain the more accurate operating condition of coring module. The pushing mechanism is arranged, so that the pushing mechanism can be linked with the coring module to simulate coring actions;
3. the oil cylinder can be divided into an upper oil cylinder and a lower oil cylinder by arranging the piston, and the piston is controlled by oil injection to move up and down, so that the coring module is controlled to perform simulation work;
4. through the arrangement of the push rod, the push rod can move up and down under the driving of the piston, so that the coring module is driven to perform simulation work;
5. the sealing connection form is changed from a flange type to a thread type, so that the bearing capacity of the simulation platform is improved, and the simulation of a higher-temperature and higher-pressure environment can be realized;
6. the stable work of the coring module can be ensured by setting the number of the push rods;
7. the upper oil cylinder can be filled with oil by arranging the first oil filling port and the extending position of the first oil filling port, so that the downward movement of the piston is realized;
8. the lower oil cylinder can be oiled by arranging the second oil filling port and the extending position of the second oil filling port, so that the piston can move upwards;
9. the heating coil is arranged, so that the temperature can be conveniently controlled, and the heating area is larger due to the annular design, so that a large amount of heat can be generated in a short time;
10. by arranging the dynamic sealing mechanism, hydraulic oil of the oil cylinder at the upper part of the pushing mechanism is isolated from medium liquid in the simulation cabin, so that the liquid communication is prevented from losing pressure; meanwhile, the push rod mechanism is centered, so that the push rod can stably run;
11. the installation of the coring module is facilitated by arranging the center rod hoisting table, so that the coring module can be kept stable in the working process;
12. the core base is arranged, so that the core can be fixed, and the core can be stably cored;
13. through setting up the protection casing, isolated simulation cabin outer wall heating collar high temperature is scalded to prevent that pressure from revealing the hidden danger and causing the injury to the experimenter.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a coring simulation apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of a coring module according to the present invention;
FIG. 3 is a schematic view of another angle structure of the coring module of the present invention;
FIG. 4 is a schematic structural diagram of the self-isolation and while-drilling dynamic migration mechanism of the present invention;
FIG. 5 is a cross-sectional structural view of the self-isolation and while-drilling dynamic migration mechanism of the present invention;
FIG. 6 is a schematic structural view of a self-triggering migration control mechanism while drilling for the deposition solution according to the present invention;
FIG. 7 is another schematic structural view of the self-triggering migration control mechanism while drilling for the deposition solution of the present invention;
FIG. 8 is a schematic structural view of the in-situ self-polymerization curing film-forming control mechanism of the film-forming solution of the present invention.
In the figure: 1-a simulation cabin, 2-a pushing mechanism, 3-a coring module, 4-an air outlet, 5-a liquid inlet, 6-a heating device, 7-a piston, 8-an upper oil cylinder, 9-a lower oil cylinder, 10-a push rod, 11-a first oil injection port, 12-a second oil injection port, 13-a dynamic sealing mechanism, 14-a central rod hoisting platform, 15-a core base, 16-a protective cover, 17-an upper sealing cover, 18-a lower sealing cover, 19-a fixed base, 20-a central rod, 21-a self-isolation and dynamic migration mechanism while drilling, 22-a coring barrel, 23-a film-forming liquid self-triggering migration control mechanism while drilling, 24-a film-forming liquid in-situ self-polymerization and solidification film-forming control mechanism, 25-a calandria 26-an extrusion mechanism, 27-a reducing piece, 28-a pressing section, 29-an inclined section, 30-a liquid flow channel, 31-a vertical flow channel, 32-a horizontal flow channel, 33-a sealing piece, 34-a migration mechanism, 35-a sliding block, 36-a groove, 37-a fixed base, 38-an elastic piece, 39-a confluence flow channel, a bevel-40-a static mixer, and a static mixer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.
A quality-guaranteeing coring module for deep in-situ film forming while drilling is structurally shown in figures 2-8, wherein the coring module 3 comprises a central rod 20, a self-isolation and dynamic migration while drilling mechanism 21 is sleeved on the upper portion of the central rod 20, a coring barrel 22 is sleeved outside the self-isolation and dynamic migration while drilling mechanism 21, a film forming liquid self-triggering migration while drilling control mechanism 23 is connected to the lower portion of the self-isolation and dynamic migration while drilling mechanism 21, a film forming liquid self-polymerization curing film forming control mechanism 24 is connected to the lower portion of the film forming liquid self-triggering migration while drilling control mechanism 23, the self-isolation and dynamic migration while drilling mechanism 21 comprises two calandria 25 for self-isolation and self-migration of the film forming liquid, an extrusion mechanism 26 is connected to the upper portion of the calandria 25, the extrusion mechanism 26 is connected to the pushing mechanism 2, and the calandria 25 is a flexible calandria.
The extrusion mechanism 26 comprises a reducing part 27, the reducing part 27 is fixedly connected with the coring barrel 22, the reducing part 27 comprises a pressing section 28 for pressing the calandria 25, the lower part of the pressing section 28 is connected with an inclined section 29, the film-forming liquid self-triggering migration control mechanism 23 comprises a liquid releasing channel 30, and the liquid releasing channel 30 is used for communicating the two calandria 25.
The liquid releasing flow channel 30 comprises two vertical flow channels 31, the two vertical flow channels 31 are respectively communicated with the two discharge pipes 25, the two vertical flow channels 31 are communicated through a horizontal flow channel 32, sealing elements 33 are respectively arranged in the two vertical flow channels 31, the sealing elements 33 are connected with a moving mechanism 34 which enables the sealing elements 33 to displace, the sealing elements 33 are sealing pistons 7, the moving mechanism 34 comprises two sliding blocks 35, grooves 36 for placing the sealing elements 33 are formed in the sliding blocks 35, a fixed base 3719 is connected between the two sliding blocks 35, an elastic element 38 is connected between the fixed base 3719 and the sliding blocks 35, the elastic element 38 is a spring, the horizontal flow channel 32 is further connected with one end of a converging flow channel 40, the other end of the converging flow channel 40 is connected with a film forming liquid in-situ self-polymerization curing film-forming control mechanism 24, a plurality of self-polymerization flow channels 41 are arranged in the film forming liquid in-situ self-polymerization curing film-forming control mechanism 24, the two adjacent self-polymerization flow channels 41 are communicated, and a static mixer 42 is arranged in each self-polymerization flow channel 41.
Each of the sliders 35 is provided with a slope 39 at an end thereof near the core barrel 22, and the initial position of the slider 35 is on the moving path of the core barrel 22.
By arranging the film forming liquid in-situ self-polymerization curing film forming control mechanism 24, the liquid A and the liquid B can be fully self-polymerized after being released, and the coring effect is ensured.
By providing the squeezing mechanism 26 and the discharge pipe 25, the squeezing mechanism 26 can squeeze the discharge pipe 25 and drive the liquid a and the liquid B in the discharge pipe 25 to move by themselves.
Through setting up flexible calandria 25, be convenient for extrude calandria 25, drive A liquid and B liquid carry out from the migration.
When the extrusion device is used, the reducing piece 27 is driven by the core barrel 22 to move downwards, so that the discharge pipe 25 is extruded, and an additional pushing mechanism 2 is not added.
By providing the pressing section 28, the rack pipe 25 can be pressed on the central rod 20, and the relative sliding between the central rod 20 and the rack pipe 25 is avoided.
By providing the inclined section 29, the resistance to the reducing member 27 can be reduced, facilitating the self-movement of the liquid a and the liquid B.
By providing the vertical flow channel 31 and the horizontal flow channel 32, the liquid a and the liquid B can be self-polymerized to the horizontal flow channel 32 through the vertical flow channel 31.
Through setting up sealing member 33, can keep apart the runner, avoid A liquid and B liquid to leak before coring, moving mechanism 34 takes away sealing member 33 after the beginning coring, can realize self polymerization, unpacks apart after the coring is accomplished and resets.
Through setting up slider 35 and recess 36, the spout is at the in-process that removes, and sealing member 33 can fall into recess 36 automatically under the action of gravity and liquid B liquid pressure, realizes the intercommunication of vertical runner 31 and horizontal runner 32.
Through setting up base and elastic component 38, slider 35 takes place the displacement under the effect of external force to extrusion elastic component 38, slider 35 makes recess 36 move to sealing member 33 below after taking place the displacement, and sealing member 33 drops into recess 36 under the action of gravity, realizes the intercommunication of vertical runner 31 and horizontal runner 32.
By providing the inclined surface 39, the core barrel 22 first contacts the inclined surface 39 during the downward movement, and the inclined surface 39 is displaced inward by the movement of the core barrel 22, thereby moving the slide block 35.
By arranging a plurality of self-polymerization flow channels 41, a static mixer 42 with enough length can be arranged, the stroke and time of rotation, shearing, mixing and recombination between the fluid A and the fluid B are improved, and the liquid A and the liquid B are ensured to trigger sufficient self-polymerization film-forming reaction.
Example 1
The utility model provides a analogue means that is used for deep normal position to bore and is become quality guarantee and core along with boring, uses above-mentioned coring module 3, and its concrete structure is as shown in figure 1, including the simulation cabin 1 that is used for placing coring module 3 and rock core, the sealed push mechanism 2 that is provided with in simulation cabin 1 upper portion, push mechanism 2 with coring module 3 is connected, simulation cabin 1 one side upper portion is provided with gas outlet 4, be provided with inlet 5 on the simulation cabin 1 of gas outlet 4 below, simulation cabin 1 is provided with heating device 6 outward.
The working principle is as follows: when the device is used, firstly, a rock core is placed at the bottom of the simulation cabin 1, then the coring module 3 is placed, then the coring module 3 is connected with the pushing mechanism 2 for sealing, medium liquid such as oil, water or drilling fluid is injected into the simulation cabin 1 from the liquid inlet 5, air in the simulation cabin 1 is exhausted from the air outlet 4, then the pushing mechanism 2 is used for pushing the extruding mechanism 26, the extruding mechanism 26 extrudes the flexible calandria 25, and liquid A and liquid B in the flexible calandria 25 are released from the film-forming liquid self-triggering transport control mechanism 23 along with drilling to the film-forming liquid in-situ self-polymerization curing film-forming control mechanism 24 for mixing. Through setting up heating device 6, can heat for simulation cabin 1, simulate the temperature of the true in-process of coring, can obtain the more accurate operating condition of coring module 3. Through setting up push mechanism 2, can link with coring module 3, carry out the simulation of coring action.
Example 2
As a preferred embodiment of the present invention, the specific structure is as shown in fig. 1, and on the basis of embodiment 1, the following improvement is disclosed, in which the pushing mechanism 2 is an oil cylinder pushing mechanism 2, a piston 7 is disposed in the oil cylinder pushing mechanism 2, the oil cylinder is divided into an upper oil cylinder 8 and a lower oil cylinder 9 by the piston 7, the piston 7 is connected to a push rod 10, the push rod 10 is connected to the coring module 3 through a thread, the number of the push rods 10 is 4, the upper oil cylinder 8 is connected to a first oil injection port 11, the first oil injection port 11 extends to the top of the upper oil cylinder 8, the lower oil cylinder 9 is connected to a second oil injection port 12, and the second oil injection port 12 extends to the bottom of the lower oil cylinder 9.
Through setting up piston 7, can cut apart into upper cylinder 8 and lower cylinder 9 with the hydro-cylinder, rethread oiling control piston 7 reciprocates to control coring module 3 carries out the simulation work.
Through setting up push rod 10, push rod 10 can reciprocate under the drive of piston 7 to drive coring module 3 and carry out the analog operation.
Through setting up the dynamic seal and connecting, can guarantee that push rod 10 top hydro-cylinder is isolated with 1 pressure in bottom simulation cabin, ensures that push rod 10 can stably reciprocate, triggers the simulation process of coring.
By setting the number of the push rods 10, stable operation of the coring module 3 can be ensured.
By arranging the first oil filling port 11 and the extending position of the first oil filling port 11, the upper oil cylinder 8 can be filled with oil, and the downward movement of the piston 7 is realized.
By setting the second oil filling port 12 and the extending position of the second oil filling port 12, the lower oil cylinder 9 can be filled with oil, and the piston 7 can move upwards.
Example 3
The embodiment is a preferred embodiment of the present invention, and the specific structure is as shown in fig. 1, which discloses the following improvement on the basis of embodiment 2, where the heating device 6 is a heating coil, a movable sealing mechanism 13 is arranged at a joint of the pushing mechanism 2 and the simulation cabin 1, a central rod hoisting table 14 is arranged in the simulation cabin 1, a core base 15 is arranged at the bottom of the simulation cabin 1, a protective cover 16 is sleeved outside the sealing cabin, an upper sealing cover 17 is arranged at the upper part of the protective cover 16, a lower sealing cover 18 is arranged at the lower part of the protective cover 16, and a fixing base 19 for fixing the protective cover 16 is arranged at the bottom of the lower sealing cover 18.
Through setting up heating coil, the controlled temperature that can be convenient, because the annular design, heating area is bigger, can produce a large amount of heats in the short time.
By arranging the dynamic sealing mechanism 13, hydraulic oil of an oil cylinder at the upper part of the pushing mechanism 2 is isolated from medium liquid in the simulation cabin 1, so that the liquid communication is prevented from losing pressure; meanwhile, the push rod 10 mechanism is centered, which is beneficial to keeping the push rod 10 running stably.
Through setting up well core rod hoist and mount platform 14, the installation of the module 3 of coring of being convenient for makes the module 3 of coring can remain stable in the course of the work, well core rod 20 quiescent behavior when the simulation is cored simultaneously.
Through setting up rock core base 15, can be fixed with the rock core, guarantee that coring can stably go on.
Through setting up protection casing 16, isolated 1 outer wall in simulation cabin heating collar high temperature scalds to prevent that pressure from revealing the hidden danger and cause the injury to the experimenter.
The top of the simulation cabin 1 is sealed by high-pressure threads through the arrangement of an upper sealing cover 17.
The bottom of the simulation cabin 1 is sealed by high-pressure threads through the arrangement of a lower sealing cover 18.
Through setting up unable adjustment base 19, can be fixed protection casing 16 and lower closing cap 18, guarantee the normal clear of simulation.
The above embodiments are just exemplified in the present embodiment, but the present embodiment is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining with each other according to the above embodiments, and any other various embodiments can be obtained by anyone in light of the present embodiment. The above detailed description should not be construed as limiting the scope of the present embodiments, which should be defined in the claims, and the description should be used for interpreting the claims.
Claims (10)
1. The utility model provides a analogue means that is used for deep normal position to follow boring film-forming quality guaranteeing coring, is including simulation cabin (1) that is used for placing coring module (3) and rock core, simulation cabin (1) upper portion is sealed to be provided with push mechanism (2), push mechanism (2) with coring module (3) are connected, simulation cabin (1) one side upper portion is provided with gas outlet (4), be provided with on simulation cabin (1) of gas outlet (4) below inlet (5), simulation cabin (1) is provided with heating device (6) outward.
2. The simulation device for deep in-situ film formation while drilling quality assurance coring according to claim 1, wherein: the pushing mechanism (2) is an oil cylinder pushing mechanism (2).
3. The simulation device for deep in-situ film-forming while drilling quality-guaranteeing coring as recited in claim 2, wherein: a piston (7) is arranged in the oil cylinder pushing mechanism (2), and the oil cylinder is divided into an upper oil cylinder (8) and a lower oil cylinder (9) by the piston (7).
4. The deep in-situ filming quality-guaranteeing coring simulation device according to claim 3, wherein a push rod (10) is connected to the piston (7), and the push rod (10) is connected to the coring module (3).
5. The simulation device for deep in-situ during-drilling film formation quality-guaranteeing coring according to claim 4, wherein: the push rod (10) is connected with the coring module (3) through threads.
6. The simulation device for deep in-situ film-forming while drilling quality-guaranteeing coring as recited in claim 3, wherein: go up hydro-cylinder (8) and be connected with first oiling mouth (11), first oiling mouth (11) extend to go up hydro-cylinder (8) top.
7. The simulation device for deep in-situ during-drilling film formation quality-guaranteeing coring according to claim 3, wherein: the lower oil cylinder (9) is connected with a second oil filling opening (12), and the second oil filling opening (12) extends to the bottom of the lower oil cylinder (9).
8. The simulation device for deep in-situ film formation while drilling quality assurance coring according to claim 1, wherein: and a dynamic sealing mechanism (13) is arranged at the joint of the pushing mechanism (2) and the push rod (10).
9. The simulation device for deep in-situ film formation while drilling quality assurance coring according to claim 1, wherein: the coring module (3) comprises a center rod (20), a self-isolation and while-drilling dynamic migration mechanism (21) is sleeved on the upper portion of the center rod (20), a coring barrel (22) is sleeved outside the self-isolation and while-drilling dynamic migration mechanism (21), the lower portion of the self-isolation and while-drilling dynamic migration mechanism (21) is connected with a film forming solution self-triggering migration control mechanism (23) while drilling, the lower portion of the film forming solution self-triggering migration control mechanism (23) while drilling is connected with a film forming solution in-situ self-polymerization curing film forming control mechanism (24), and the self-isolation and while-drilling dynamic migration mechanism (21) is connected with the pushing mechanism (2).
10. Use of a simulation apparatus for deep in situ formation-while-drilling quality-guaranteed coring according to any one of claims 1-9, wherein: the method is used for simulating in-situ quality-guaranteeing coring of deep rocks.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116181262A (en) * | 2022-12-19 | 2023-05-30 | 四川大学 | In-situ film-forming quality-guaranteeing coring device and coring method for combustible ice |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116181262A (en) * | 2022-12-19 | 2023-05-30 | 四川大学 | In-situ film-forming quality-guaranteeing coring device and coring method for combustible ice |
| CN116181262B (en) * | 2022-12-19 | 2024-05-10 | 四川大学 | In-situ film-forming quality-guaranteeing coring device and coring method for combustible ice |
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