CN115717517B - Evaluation device and experimental method for influence of simulated drilling on hydrate inhibition and decomposition performance - Google Patents
Evaluation device and experimental method for influence of simulated drilling on hydrate inhibition and decomposition performance Download PDFInfo
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- CN115717517B CN115717517B CN202211522746.XA CN202211522746A CN115717517B CN 115717517 B CN115717517 B CN 115717517B CN 202211522746 A CN202211522746 A CN 202211522746A CN 115717517 B CN115717517 B CN 115717517B
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- 238000005553 drilling Methods 0.000 title claims abstract description 110
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 39
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 36
- 238000002474 experimental method Methods 0.000 title claims abstract description 26
- 238000011156 evaluation Methods 0.000 title claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 185
- 238000001816 cooling Methods 0.000 claims abstract description 179
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000012544 monitoring process Methods 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims abstract description 30
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 134
- 239000000110 cooling liquid Substances 0.000 claims description 57
- 239000012530 fluid Substances 0.000 claims description 48
- 238000001802 infusion Methods 0.000 claims description 35
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 28
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000009527 percussion Methods 0.000 claims description 5
- 239000012780 transparent material Substances 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 description 11
- 238000011069 regeneration method Methods 0.000 description 11
- 230000001276 controlling effect Effects 0.000 description 10
- 230000004660 morphological change Effects 0.000 description 8
- 239000012809 cooling fluid Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 150000004677 hydrates Chemical class 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 2
- -1 natural gas hydrates Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
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- 230000002194 synthesizing effect Effects 0.000 description 2
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 239000003208 petroleum Substances 0.000 description 1
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Abstract
The invention discloses an evaluation device and an experimental method for the influence of simulated drilling on hydrate inhibition and decomposition performance, and relates to the technical field of natural gas hydrate drilling, comprising a gas supply assembly, a first reaction kettle, a second reaction kettle, a first cooling kettle, a second cooling kettle and a monitoring assembly, wherein gas inlets of the first reaction kettle and the second reaction kettle are communicated with a gas outlet of the gas supply assembly; an electric stirrer is arranged on the first reaction kettle, the upper end of a stirring pipe is in transmission connection with an output shaft of a stirring motor, the lower end of the stirring pipe extends into the first reaction kettle, and the side wall of the stirring pipe is communicated with a liquid outlet of the first cooling kettle through a first liquid conveying pipe; the second reaction kettle is provided with an impactor fixing pipe, the upper end of the impactor fixing pipe is communicated with a liquid outlet of the second cooling kettle through a second liquid delivery pipe, and the lower end of the impactor fixing pipe is provided with a hydraulic impactor; the monitoring component is used for detecting the temperature and the pressure of the first reaction kettle and the second reaction kettle. The invention can study the influence of different drilling modes on the hydrate decomposition inhibition performance.
Description
Technical Field
The invention relates to the technical field of natural gas hydrate drilling, in particular to an evaluation device and an experimental method for influence of simulated drilling on hydrate decomposition inhibition performance.
Background
The natural gas hydrate is an ice-snow-like crystalline substance formed by natural gas and liquid water under the conditions of high pressure and low temperature, and is a clean energy source capable of replacing petroleum. It is widely distributed in large Liu Bianyuan submarine sediment and permanent frozen soil layers, and natural gas hydrate is found in frozen soil layers on the sea areas of south China sea and east China sea and Qilian mountain in China.
The research of natural gas hydrate is mainly carried out by means of geophysics, geochemistry, geological drilling and the like, but the geophysical and geochemical methods only can indirectly predict the existence of the natural gas hydrate. In particular, for the study of subsea natural gas hydrates, although the presence of hydrates can be confirmed by identifying a subsea simulated reflector (BSR for short, representing the acoustic reflection interface between hydrate-containing sediment and underlying non-hydrate) on a seismic section, BSR is not an accurate indicator of the presence of marker hydrates. Later studies showed that many locations where natural gas hydrates were collected did not have an indication of BSR, whereas locations where BSR was indicated did not necessarily have hydrates present. Geological drilling is currently the only means by which hydrate samples can be taken directly to the surface. The drilled hydrate core truly reflects the occurrence state of the hydrate while confirming the existence of the hydrate, and the physical and chemical properties of the hydrate are researched more accurately.
In the drilling process of natural gas hydrate, the problem of how to take out a complete natural gas hydrate sample is always faced. The pressure release or the temperature rise in the drilling process damages the occurrence condition of the natural gas hydrate, so that the natural gas hydrate is easy to decompose, and the coring quality and the stability of the well wall are seriously affected. Long-term researches prove that the thermodynamic equilibrium condition of the hydrate can be changed by adding a thermodynamic inhibitor, a kinetic inhibitor and other hydrate inhibitors into the drilling fluid, and the decomposition of the hydrate in the drilling process is reduced. Meanwhile, the selection of a proper hydrate drilling technology is also a key for greatly improving the coring quality.
The present application in hydrate drilling is both rotary and percussive. However, the conventional device for evaluating the hydrate inhibition decomposition capability is studied, and the conventional method for evaluating the hydrate inhibition decomposition capability cannot simulate different drilling technical conditions.
Therefore, there is an urgent need in the market for an evaluation device and experimental method for the influence of simulated drilling on hydrate inhibition and decomposition performance, which are used for solving the above problems.
Disclosure of Invention
The invention aims to provide an evaluation device and an experimental method for simulating the influence of drilling on hydrate inhibition and decomposition performance, which are used for simulating the influence of different drilling modes on the hydrate inhibition and decomposition performance.
In order to achieve the above object, the present invention provides the following solutions:
the invention discloses an evaluation device for inhibiting and decomposing performance influence of simulated drilling on hydrate, which comprises an air supply assembly, a first reaction kettle, a second reaction kettle, a first cooling kettle, a second cooling kettle and a monitoring assembly, wherein air inlets of the first reaction kettle and the second reaction kettle are communicated with an air outlet of the air supply assembly;
the first reaction kettle is provided with an electric stirrer, the electric stirrer comprises a stirring motor and a stirring pipe, the upper end of the stirring pipe is in transmission connection with an output shaft of the stirring motor, the lower end of the stirring pipe stretches into the first reaction kettle, and the side wall of the stirring pipe is communicated with a liquid outlet of the first cooling kettle through a first infusion pipe;
the upper end of the impactor fixing pipe is communicated with a liquid outlet of the second cooling kettle through a second infusion pipe, and a hydraulic impactor is arranged at the lower end of the impactor fixing pipe;
the monitoring component is used for detecting the temperature and the pressure of the first reaction kettle and the second reaction kettle.
Preferably, the first cooling kettle and the second cooling kettle have the same structure;
the first cooling kettle comprises a cooling inner cavity and a cooling jacket, the cooling jacket is arranged on the outer side of the cooling inner cavity, cooling liquid is filled in the cooling jacket, and the cooling jacket is used for refrigerating the cooling inner cavity.
Preferably, a first constant temperature water tank is arranged below the first reaction kettle, and the first constant temperature water tank is used for refrigerating the first reaction kettle;
the second constant temperature water tank is arranged below the second reaction kettle and is used for refrigerating the second reaction kettle.
Preferably, the first constant temperature water tank and the second constant temperature water tank have the same structure;
the first constant temperature water tank comprises a water tank main body and a lifting hydraulic cylinder, wherein cooling liquid is contained in the water tank main body, the telescopic end of the lifting hydraulic cylinder is fixed at the bottom of the water tank main body, and the lifting hydraulic cylinder drives the water tank main body to move up and down.
Preferably, the cooling device comprises a water cooling device, wherein the first cooling kettle, the second cooling kettle, the first constant-temperature water tank and the second constant-temperature water tank are communicated with the water cooling device, and the water cooling device respectively provides cooling liquid for the first cooling kettle, the second cooling kettle, the first constant-temperature water tank and the second constant-temperature water tank.
Preferably, a first pressure regulating valve is arranged on a pipeline between the air supply assembly and the first reaction kettle;
a second pressure regulating valve is arranged on a pipeline between the air supply assembly and the second reaction kettle;
the first infusion tube is provided with a first infusion valve and a first delivery pump;
the second infusion tube is provided with a second infusion valve and a second delivery pump;
a first cooling liquid control valve is arranged on a pipeline between the water cooling device and the first cooling kettle;
a second cooling liquid control valve is arranged on a pipeline between the water cooling device and the first constant-temperature water tank;
a third cooling liquid control valve is arranged on a pipeline between the water cooling device and the second cooling kettle;
and a fourth cooling liquid control valve is arranged on a pipeline between the water cooling device and the second constant-temperature water tank.
Preferably, the air supply assembly comprises an air storage tank and an air compressor, and an air supply valve is arranged on a pipeline between an air outlet of the air storage tank and an air inlet of the air compressor.
Preferably, the materials of the first reaction kettle and the second reaction kettle are transparent materials.
Preferably, the monitoring assembly comprises a first upper temperature sensor, a first lower temperature sensor, a first pressure sensor, a second upper temperature sensor, a second lower temperature sensor, a second pressure sensor and a camera;
the first upper temperature sensor, the first lower temperature sensor and the first pressure sensor are arranged in the first reaction kettle, and the first upper temperature sensor and the first lower temperature sensor are respectively arranged at the upper end and the lower end of the first reaction kettle;
the second upper temperature sensor, the second lower temperature sensor and the second pressure sensor are arranged in the second reaction kettle, and the second upper temperature sensor and the second lower temperature sensor are respectively arranged at the upper end and the lower end of the second reaction kettle;
the cameras are used for monitoring the internal conditions of the first reaction kettle and the second reaction kettle;
the monitoring assembly is electrically connected with the controller.
The invention also discloses an experimental method for simulating the device for evaluating the influence of drilling on the hydrate inhibition and decomposition performance, which comprises a rotary drilling experimental process and an impact drilling experimental process;
the rotary drilling experimental process comprises the following steps:
s1, methane gas is provided into a first reaction kettle by utilizing a gas supply assembly, water is added into the first reaction kettle by utilizing a first cooling kettle, a first constant-temperature water tank is controlled to cool the first reaction kettle, the temperature in the first reaction kettle is controlled, and the internal condition of the first reaction kettle is observed by utilizing a monitoring assembly until natural gas hydrate is generated in the first reaction kettle;
s2, adding drilling fluid into the first cooling kettle, and cooling the drilling fluid in the first cooling kettle;
s3, starting an electric stirrer and simultaneously conveying drilling fluid in the first cooling kettle into the first reaction kettle;
s4, observing the condition in the first reaction kettle by using a monitoring assembly;
the percussion drilling experiment process comprises the following steps:
s1, methane gas is provided into a second reaction kettle by utilizing a gas supply assembly, water is added into the second reaction kettle by utilizing a second cooling kettle, a first constant-temperature water tank is controlled to cool the second reaction kettle, the temperature in the second reaction kettle is controlled, and the internal condition of the second reaction kettle is observed by utilizing a monitoring assembly until natural gas hydrate is generated in the second reaction kettle;
s2, adding drilling fluid into the second cooling kettle, and cooling the drilling fluid in the second cooling kettle;
s3, starting the hydraulic impactor and simultaneously conveying the drilling fluid in the second cooling kettle into the second reaction kettle;
s4, observing the condition in the second reaction kettle by utilizing the monitoring assembly.
Compared with the prior art, the invention has the following technical effects:
firstly, different simulation devices are respectively arranged in a first reaction kettle and a second reaction kettle, so that two different technical conditions can be simulated, and the influence of different drilling technologies on the hydrate decomposition inhibition performance is researched;
secondly, the first cooling kettle and the second cooling kettle are arranged, so that the drilling fluid can be cooled to 0-4 ℃ before the drilling fluid contacts with the hydrate, and the temperature of the drilling fluid during underwater operation is more truly simulated;
third, the first reaction kettle and the second reaction kettle which are all transparent can visually observe the formation and decomposition forms of the natural gas hydrate without dead angles at 360 degrees, and the problem that the conventional all-metal kettle body cannot directly observe the formation process of the hydrate is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an evaluation device for influence of simulated drilling on hydrate inhibition and decomposition performance in this example;
fig. 2 is a schematic view of the structure of the first reaction vessel in the evaluation device for the influence of simulated drilling on hydrate inhibition and decomposition performance in the embodiment;
fig. 3 is a schematic view of the structure of the second reaction vessel in the evaluation device for the influence of simulated drilling on hydrate inhibition and decomposition performance in the embodiment;
fig. 4 is a schematic view showing the structure of a first constant temperature water tank in an evaluation apparatus for influence of simulated drilling on hydrate inhibition and decomposition performance in this embodiment;
fig. 5 is a schematic view showing the structure of a first cooling tank in an evaluation apparatus for influence of simulated drilling on hydrate degradation inhibition performance in this example;
in the figure: 1-an air storage tank; 2-an air compressor; 3-a first reaction kettle; 301-a stirring motor; 302-stirring tube; 303-infusion bearings; 4-a second reaction kettle; 401-impactor fixation tube; 402-a hydraulic impactor; 5-a first constant temperature water tank; 501-a sink body; 502-lifting hydraulic cylinders; 503-a water tank liquid inlet; 504-a water tank liquid outlet; 6-a second constant temperature water tank; 7-a first cooling kettle; 701-cooling the inner cavity; 702-a cooling jacket; 703-a cooling fluid inlet; 704-a cooling liquid outlet; 8-a second cooling kettle; 9-a water cooling device; 10-an air supply valve; 11-a first pressure regulating valve; 12-a second pressure regulating valve; 13-a first infusion valve; 14-a second infusion valve; 15-a first transfer pump; 16-a second transfer pump; 17-a first coolant control valve; 18-a second coolant control valve; 19-a third coolant control valve; 20-fourth coolant control valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide an evaluation device and an experimental method for simulating the influence of drilling on hydrate inhibition and decomposition performance, which are used for simulating the influence of different drilling modes on the hydrate inhibition and decomposition performance.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Embodiment 1,
As shown in fig. 1 to 5, the embodiment provides an evaluation device for inhibiting the influence of drilling simulation on the decomposing performance of hydrate, which comprises a gas supply assembly, a first reaction kettle 3, a second reaction kettle 4, a first cooling kettle 7, a second cooling kettle 8 and a monitoring assembly, wherein gas inlets of the first reaction kettle 3 and the second reaction kettle 4 are communicated with a gas outlet of the gas supply assembly, and the gas supply assembly is used for providing methane gas for the gas inlets;
as shown in fig. 2, the first reaction kettle 3 is provided with an electric stirrer, the electric stirrer includes a stirring motor 301 and a stirring tube 302, the upper end of the stirring tube 302 is in transmission connection with the output shaft of the stirring motor 301, the lower end of the stirring tube 302 extends into the first reaction kettle 3, it is to be noted that the diameter of the lower end of the stirring tube 302 is larger than that of the upper end of the stirring tube 302, the design is to simulate the actual situation more truly, the side wall of the stirring tube 302 is communicated with the liquid outlet of the first cooling kettle 7 through the first infusion tube, in order to achieve the technical effect, an infusion bearing 303 is required to be installed on the outer side wall of the stirring tube 302, the inner ring of the infusion bearing 303 is fixed on the outer wall of the stirring tube 302, a plurality of inner ring through holes corresponding to the inner ring through holes are formed on the inner ring of the stirring tube 302, the inner ring through holes are opposite to the tube through holes, and are mutually fixed, an outer ring through hole is formed on the outer ring of the infusion bearing 303, the through hole is connected to one end of the first infusion tube, when the outer ring is in use, and the infusion bearing 303 is not rotated to the inner ring through the through holes, and the inner ring through the through holes when the inner ring and the inner ring of the bearing 302 rotates in turn, and the infusion bearing is rotated in turn;
as shown in fig. 3, the second reaction kettle 4 is provided with an impactor fixing tube 401, the upper end of the impactor fixing tube 401 is located above the second reaction kettle 4, the lower end of the impactor fixing tube 401 is located in the second reaction kettle 4, the upper end of the impactor fixing tube 401 is communicated with the liquid outlet of the second cooling kettle 8 through a second liquid delivery tube, the lower end of the impactor fixing tube 401 is provided with a hydraulic impactor 402, the structure and working principle of the hydraulic impactor 402 are identical to those of the reaction hydraulic impactor 402 used in actual drilling work, the size of the hydraulic impactor can be properly adjusted according to actual needs, and the specific working principle of the hydraulic impactor belongs to common knowledge of a person skilled in the art, so that the hydraulic impactor 402 is not repeated herein;
the monitoring component is used for detecting the temperature and the pressure of the first reaction kettle 3 and the second reaction kettle 4.
In actual use, the first reaction kettle 3 and/or the second reaction kettle 4 can be selected according to actual needs, wherein the first reaction kettle 3 is used for simulating rotary drilling technology, and the second reaction kettle 4 is used for simulating percussion drilling technology, so that the first reaction kettle and the second reaction kettle can be used alternatively or synchronously.
In a specific use mode, taking the first reaction kettle 3 as an example, methane gas in the gas supply assembly is firstly conveyed into the first reaction kettle 3, meanwhile, water in the first cooling kettle 7 is conveyed into the first reaction kettle 3, and methane is mixed with water with a lower temperature for a period of time to produce natural gas hydrate. Then, the drilling fluid is added into the first cooling kettle 7, after a period of time, the low-temperature drilling fluid is conveyed into the first reaction kettle 3 through the first infusion tube, and meanwhile, the stirring motor 301 is required to be started, so that the real rotary drilling working environment is simulated. Finally, various data can be observed by utilizing the monitoring component, and the change condition of the natural gas hydrate can be intuitively observed. Thus, the influence of rotary drilling on hydrate decomposition inhibition performance can be obtained.
The operation of the second reaction kettle 4 is the same as that of the first reaction kettle 3, except that the hydraulic impactor 402 is required to be opened when drilling fluid is added, so as to simulate the working environment of percussion drilling. The other processes are basically the same as the working process of the first reaction kettle 3, so that the description is omitted.
In this embodiment, the first cooling tank 7 and the second cooling tank 8 have the same structure, and the first cooling tank 7 is taken as an example only for specific explanation;
as shown in fig. 5, the first cooling tank 7 includes a cooling inner cavity 701 and a cooling jacket 702, and the cooling jacket 702 is provided outside the cooling inner cavity 701. The upper end opening part of the cooling cavity 701 can be detachably connected with a cover body, the specific connection mode of the cover body can be threaded connection or hinged connection, and one end of the first conveying pipe can penetrate through the cover body and is communicated with the cooling cavity 701. The cooling jacket 702 contains a cooling liquid, and the cooling liquid in the cooling jacket 702 is used for refrigerating the cooling cavity 701. In addition, a cooling liquid inlet 703 and a cooling liquid outlet 704 are further arranged on the cooling jacket 702, after the cooling liquid enters from the cooling liquid inlet 703, the cooling liquid flows out from the cooling liquid outlet 704 after absorbing heat in the cooling cavity 701, so that the cooling liquid with lower temperature is always arranged in the cooling jacket 702, and the cooling effect is performed on the liquid in the cooling cavity 701.
The structure of the second cooling tank 8 is identical to that of the first cooling tank 7, and therefore, description thereof will be omitted.
In this embodiment, a first constant-temperature water tank 5 is disposed below the first reaction kettle 3, where the first constant-temperature water tank 5 is used to cool the first reaction kettle 3, and is used to ensure that the temperature in the first reaction kettle 3 is the same as the actual drilling environment temperature;
similarly, a second constant temperature water tank 6 is arranged below the second reaction kettle 4, and the second constant temperature water tank 6 is used for refrigerating the second reaction kettle 4 and ensuring that the temperature in the second reaction kettle 4 is the same as the actual drilling environment temperature.
In this embodiment, the first constant temperature water tank 5 and the second constant temperature water tank 6 have the same structure, and the first constant temperature water tank 5 is taken as an example only;
the first constant temperature water tank 5 comprises a water tank main body 501 and a lifting hydraulic cylinder 502, wherein the water tank main body 501 is filled with cooling liquid, and the cooling liquid in the water tank main body 501 is the same as the cooling liquid in the cooling jacket 702. The telescopic end of the lifting hydraulic cylinder 502 is fixed at the bottom of the water tank main body 501, and the lifting hydraulic cylinder 502 drives the water tank main body 501 to move up and down. When the first reaction kettle 3 is required to be cooled in actual use, the lifting hydraulic cylinder 502 is utilized to drive the water tank main body 501 to move upwards, so that the first reaction kettle 3 is positioned in the water tank main body 501 in the first constant-temperature water tank 5, and the temperature of the first reaction kettle 3 is reduced; when the first reaction kettle 3 does not need to be cooled, the lifting hydraulic cylinder 502 is utilized to drive the water tank main body 501 to descend, so that the water tank main body is not contacted with the first reaction kettle 3.
Further, the tank body 501 is provided with a tank liquid inlet 503 and a tank liquid outlet 504, and the cooling liquid enters from the tank liquid inlet 503 and flows out from the tank liquid outlet 504. Thereby, the cooling liquid with lower temperature is always contained in the water tank main body 501, and the first reaction kettle 3 can be effectively cooled and temperature-controlled.
Further, the lifting hydraulic cylinder 502 may be replaced by a device having a telescopic function, such as an air cylinder or a telescopic rod.
The structure of the second constant temperature water tank 6 is identical to that of the first constant temperature water tank 5, so that the description thereof will not be repeated.
In this embodiment, the cooling device further includes a water cooling device 9, the first cooling kettle 7, the second cooling kettle 8, the first constant temperature water tank 5 and the second constant temperature water tank 6 are all communicated with the water cooling device 9, the water cooling device 9 respectively provides cooling liquid for the first cooling kettle 7, the second cooling kettle 8, the first constant temperature water tank 5 and the second constant temperature water tank 6, and the cooling liquid can be ethylene glycol or absolute ethyl alcohol.
As for the specific structure of the water cooling device 9, an existing water cooling machine or a low-temperature constant-temperature reaction bath can be adopted.
For the first reaction vessel 3 and the second reaction vessel 4, the liquid outlet of the water cooling device 9 is communicated with the cooling liquid inlet 703 on the cooling jacket 702, and the cooling liquid outlet 704 of the cooling jacket 702 is communicated with the liquid inlet of the water cooling device 9, so that a circulation system is formed. The low-temperature cooling liquid in the water cooling device 9 enters the cooling jacket 702 through the cooling liquid inlet 703 in the cooling jacket 702, then the cooling liquid with a slightly higher temperature in the cooling jacket 702 flows out through the cooling liquid outlet 704 and enters the liquid inlet in the water cooling device 9 again, and then the cooling liquid is cooled in the water cooling device 9 and then waits for the next output.
Similarly, for the first constant temperature water tank 5 and the second constant temperature water tank 6, the liquid outlet of the water cooling device 9 is communicated with the water inlet 503 of the water tank body 501, and the water outlet 504 of the water tank body 501 is communicated with the liquid inlet of the water cooling device 9, so as to form a circulation system. The low-temperature cooling liquid in the water cooling device 9 can enter the water tank main body 501 through the water tank liquid inlet 503 in the water tank main body 501, then the cooling liquid with slightly higher temperature in the water tank main body 501 can flow out through the water tank liquid outlet 504 and enter the liquid inlet in the water cooling device 9 again, and then the cooling liquid waits for the next output after the cooling effect in the water cooling device 9.
In this embodiment, a first pressure regulating valve 11 is disposed on a pipeline between the gas supply assembly and the first reaction kettle 3 to regulate the gas flow rate for conveying the first reaction kettle 3;
similarly, a second pressure regulating valve 12 is arranged on a pipeline between the gas supply assembly and the second reaction kettle 4, so as to regulate the gas flow rate for conveying the second reaction kettle 4.
The first infusion tube is provided with a first infusion valve 13 and a first delivery pump 15, the first infusion valve 13 is used for controlling liquid circulation, and the first delivery pump 15 provides power for delivering liquid;
similarly, the second infusion tube is provided with a second infusion valve 14 and a second delivery pump 16, the second infusion valve 14 is used for controlling liquid circulation, and the second delivery pump 16 provides power for delivering liquid. And the first infusion valve 13 and the second infusion valve 14 are check valves, thereby preventing the reverse flow of liquid.
The liquid inlet and the liquid outlet (not shown) of the water cooling device 9 are respectively connected with four branches, and the four branches are respectively as follows:
a first cooling liquid control valve 17 is arranged on a pipeline between the water cooling device 9 and the first cooling kettle 7, and the first cooling liquid control valve 17 is used for controlling the circulation of liquid;
similarly, a second cooling liquid control valve 18 is arranged on a pipeline between the water cooling device 9 and the first constant temperature water tank 5, and the second cooling liquid control valve 18 is used for controlling the circulation of liquid;
similarly, a third cooling liquid control valve 19 is arranged on a pipeline between the water cooling device 9 and the second cooling kettle 8, and the third cooling liquid control valve 19 is used for controlling the circulation of liquid;
similarly, a fourth cooling liquid control valve 20 is arranged on a pipeline between the water cooling device 9 and the second constant temperature water tank 6, and the fourth cooling liquid control valve 20 is used for controlling the circulation of liquid.
In this embodiment, the air supply assembly includes an air storage tank 1 and an air compressor 2, and an air supply valve 10 is disposed on a pipeline between an air outlet of the air storage tank 1 and an air inlet of the air compressor 2, for controlling the flow of methane gas.
In this embodiment, the materials of the first reaction kettle 3 and the second reaction kettle 4 are transparent materials, the specific materials are monocrystalline sapphire, and the purpose of setting the transparent materials is to enable staff to visually observe the internal conditions of the first reaction kettle 3 and the second reaction kettle 4 from the outside.
Similarly, the water tank main body 501 in the first constant temperature water tank 5 and the second constant temperature water tank 6 is made of a transparent material, specifically, a transparent glass material. The purpose is also that the staff of being convenient for can more audio-visual observe the internal condition of first reation kettle 3 with second reation kettle 4 from the external world.
In this embodiment, the monitoring component includes a first upper temperature sensor, a first lower temperature sensor, a first pressure sensor, a second upper temperature sensor, a second lower temperature sensor, a second pressure sensor, and a camera;
the first upper temperature sensor, the first lower temperature sensor and the first pressure sensor are all arranged in the first reaction kettle 3, the first pressure sensor is used for monitoring pressure in real time, and the first upper temperature sensor and the first lower temperature sensor are respectively arranged at the upper end and the lower end in the first reaction kettle 3 and are used for measuring the temperature at the upper end and the lower end in real time;
similarly, the second upper temperature sensor, the second lower temperature sensor and the second pressure sensor are all arranged in the second reaction kettle 4, the second pressure sensor is used for monitoring pressure in real time, and the second upper temperature sensor and the second lower temperature sensor are respectively arranged at the upper end and the lower end in the second reaction kettle 4 and are used for measuring the temperatures at the upper end and the lower end in real time;
the cameras are used for monitoring the internal conditions of the first reaction kettle 3 and the second reaction kettle 4;
the monitoring assembly is electrically connected with a controller, which can be a control computer, can be used for receiving electric signals of pressure values and temperature values and performs relevant calculation by using the computer.
Embodiment II,
The embodiment provides an experimental method for simulating an experimental device for evaluating the influence of drilling on hydrate inhibition and decomposition performance, which comprises a rotary drilling experimental process and an impact drilling experimental process;
wherein, the rotary drilling experimental process comprises the following steps:
s1, an air supply valve 10 between an air storage tank 1 and an air compressor 2 is opened, methane gas is supplied to a first reaction kettle 3 by an air supply assembly, the pressure in the first reaction kettle 3 is controlled to reach the expected pressure by adjusting a first pressure regulating valve 11, water is added into the first reaction kettle 3 by a first cooling kettle 7, a computer is turned on, and the temperature and the pressure value in the first reaction kettle 3 are monitored in real time. The second cooling liquid control valve 18 is started, the cooling liquid of the water tank main body 501 in the first constant temperature water tank 5 is controlled to reach a certain temperature, and after the temperature is qualified, the lifting hydraulic cylinder 502 is controlled to drive the water tank main body 501 to ascend, and the first constant temperature water tank 5 is controlled to cool the first reaction kettle 3. The first cooling liquid control valve 17 is opened to enable the cooling liquid of the water cooling device 9 to enter the first reaction kettle 3, and the temperature in the first reaction kettle 3 is controlled in sequence to reach the expected temperature. Meanwhile, the monitoring assembly is used for observing the internal condition of the first reaction kettle 3 until natural gas hydrate is generated in the first reaction kettle 3;
s2, opening a cover body on the first cooling kettle 7, adding drilling fluid into the first cooling kettle 7, and simultaneously, conveying the cooling fluid in the water cooling device 9 into a cooling jacket 702 in the first cooling kettle 7 in size to cool the drilling fluid in the first cooling kettle 7;
s3, starting an electric stirrer, and simultaneously conveying the drilling fluid in the first cooling kettle 7 into the first reaction kettle 3, wherein the drilling fluid in the first cooling kettle 7 is conveyed into the first reaction kettle 3 under the drive of a first conveying pump 15 and a first infusion valve 13;
s4, observing the condition in the first reaction kettle 3 by utilizing a monitoring component, wherein experimental software in a computer records the pressure and temperature change in the first reaction kettle 3 when the electric stirrer is started and the drilling fluid pump is started. The ability to inhibit decomposition can be evaluated by directly comparing the pressure and temperature changes of different drilling fluid samples.
S5, starting a video recording function of computer experiment software, and recording the morphological change of the hydrate in the hydrate decomposition experiment process by using a high-definition camera. And the ability to inhibit decomposition can be evaluated by directly comparing the morphological changes of the hydrate.
The percussion drilling experiment process comprises the following steps:
s1, an air supply valve 10 between an air storage tank 1 and an air compressor 2 is opened, methane gas is supplied into a second reaction kettle 4 by utilizing an air supply assembly, the pressure in the second reaction kettle 4 is controlled to reach the expected pressure by adjusting a second pressure regulating valve 12, water is added into the second reaction kettle 4 by utilizing a second cooling kettle 8, a computer is turned on, and the temperature and the pressure value in the second reaction kettle 4 are monitored in real time. The second cooling liquid control valve 18 is started, the cooling liquid of the water tank main body 501 in the second constant temperature water tank 6 is controlled to reach a certain temperature, and after the temperature is qualified, the lifting hydraulic cylinder 502 is controlled to drive the water tank main body 501 to ascend, and the second constant temperature water tank 6 is controlled to cool the second reaction kettle 4. The second cooling liquid control valve 18 is opened to enable the cooling liquid of the water cooling device 9 to enter the second reaction kettle 4, and the temperature in the second reaction kettle 4 is controlled in sequence to reach the expected temperature. Meanwhile, the monitoring assembly is used for observing the internal condition of the second reaction kettle 4 until natural gas hydrate is generated in the second reaction kettle 4;
s2, opening a cover body on the second cooling kettle 8, adding drilling fluid into the second cooling kettle 8, and simultaneously, conveying the cooling fluid in the water cooling device 9 into a cooling jacket 702 in the second cooling kettle 8 in size to cool the drilling fluid in the second cooling kettle 8;
s3, starting an electric stirrer, and simultaneously conveying the drilling fluid in the second cooling kettle 8 into the second reaction kettle 4, wherein the drilling fluid in the second cooling kettle 8 is conveyed into the second reaction kettle 4 under the drive of a second conveying pump 16 and a second infusion valve 14;
s4, observing the condition in the second reaction kettle 4 by utilizing the monitoring component, wherein experimental software in a computer records the pressure and temperature change in the second reaction kettle 4 when the electric stirrer is started and the drilling fluid pump is started. The ability to inhibit decomposition can be evaluated by directly comparing the pressure and temperature changes of different drilling fluid samples.
S5, starting a video recording function of computer experiment software, and recording the morphological change of the hydrate in the hydrate decomposition experiment process by using a high-definition camera. And the ability to inhibit decomposition can be evaluated by directly comparing the morphological changes of the hydrate.
Third embodiment,
The embodiment provides an experimental method for simulating an influence evaluation device of drilling fluid on hydrate inhibition regeneration performance, which comprises a rotary drilling experimental process and an impact drilling experimental process;
wherein, the rotary drilling experimental process comprises the following steps:
s1, opening an air supply valve 10 between an air storage tank 1 and an air compressor 2, providing methane gas into a first reaction kettle 3 by using an air supply assembly, and controlling the pressure in the first reaction kettle 3 to reach the expected pressure by adjusting a first pressure regulating valve 11;
s2, opening a cover body on the first cooling kettle 7, adding drilling fluid into the first cooling kettle 7, and simultaneously, conveying the cooling fluid in the water cooling device 9 into a cooling jacket 702 in the first cooling kettle 7 in size to cool the drilling fluid in the first cooling kettle 7;
s3, starting an electric stirrer, and simultaneously conveying the drilling fluid in the first cooling kettle 7 into the first reaction kettle 3, wherein the drilling fluid in the first cooling kettle 7 is conveyed into the first reaction kettle 3 under the drive of a first conveying pump 15 and a first infusion valve 13, and the drilling fluid has moisture, so that raw materials for synthesizing hydrate can be provided;
s4, observing the condition in the first reaction kettle 3 by utilizing a monitoring component, wherein experimental software in a computer records the pressure and temperature change in the first reaction kettle 3 when the electric stirrer is started and the drilling fluid pump is started. The ability to inhibit regeneration can be evaluated by directly comparing the pressure and temperature changes of different drilling fluid samples.
S5, starting a video recording function of the computer experiment software, and recording the morphological change of the mixture in the hydrate regeneration experiment process by using a high-definition camera. And the ability to inhibit regeneration can be evaluated by directly comparing the morphological changes of the mixture.
Similarly, the percussive drilling experiment process comprises the following steps:
s1, opening an air supply valve 10 between an air storage tank 1 and an air compressor 2, providing methane gas into a second reaction kettle 4 by using an air supply assembly, and controlling the pressure in the second reaction kettle 4 to reach the expected pressure by adjusting a second pressure regulating valve 12;
s2, opening a cover body on the second cooling kettle 8, adding drilling fluid into the second cooling kettle 8, and simultaneously, conveying the cooling fluid in the water cooling device 9 into a cooling jacket 702 in the second cooling kettle 8 in size to cool the drilling fluid in the second cooling kettle 8;
s3, starting an electric stirrer, and simultaneously conveying the drilling fluid in the second cooling kettle 8 into the second reaction kettle 4, wherein the drilling fluid in the second cooling kettle 8 is conveyed into the second reaction kettle 4 under the drive of a second conveying pump 16 and a second infusion valve 14, and the drilling fluid has moisture, so that raw materials for synthesizing hydrate can be provided;
s4, observing the condition in the second reaction kettle 4 by utilizing the monitoring component, wherein experimental software in a computer records the pressure and temperature change in the second reaction kettle 4 when the electric stirrer is started and the drilling fluid pump is started. The ability to inhibit regeneration can be evaluated by directly comparing the pressure and temperature changes of different drilling fluid samples.
S5, starting a video recording function of the computer experiment software, and recording the morphological change of the mixture in the hydrate regeneration experiment process by using a high-definition camera. And the ability to inhibit regeneration can be evaluated by directly comparing the morphological changes of the mixture.
From this, it can be seen that the regeneration inhibition experiment is different from the decomposition inhibition experiment only in that there is a step of controlling the formation of hydrate, and if the formation of hydrate is first performed and then drilling fluid is added, the regeneration inhibition experiment is the decomposition inhibition experiment; this is an experiment to inhibit regeneration if methane gas and drilling fluid are added directly to the reactor.
The device can be used for both the regeneration inhibition experiment and the decomposition inhibition experiment, thereby improving the applicability of the device.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (7)
1. An evaluation device for the influence of simulated drilling on hydrate inhibition and decomposition performance is characterized in that: the device comprises an air supply assembly, a first reaction kettle, a second reaction kettle, a first cooling kettle, a second cooling kettle and a monitoring assembly, wherein air inlets of the first reaction kettle and the second reaction kettle are communicated with an air outlet of the air supply assembly;
the first reaction kettle is provided with an electric stirrer, the electric stirrer comprises a stirring motor and a stirring pipe, the upper end of the stirring pipe is in transmission connection with an output shaft of the stirring motor, the lower end of the stirring pipe stretches into the first reaction kettle, and the side wall of the stirring pipe is communicated with a liquid outlet of the first cooling kettle through a first infusion pipe;
the upper end of the impactor fixing pipe is communicated with a liquid outlet of the second cooling kettle through a second infusion pipe, and a hydraulic impactor is arranged at the lower end of the impactor fixing pipe;
the monitoring component is used for detecting the temperature and the pressure of the first reaction kettle and the second reaction kettle;
a first constant-temperature water tank is arranged below the first reaction kettle and is used for refrigerating the first reaction kettle; a second constant-temperature water tank is arranged below the second reaction kettle and is used for refrigerating the second reaction kettle;
the cooling device is used for providing cooling liquid for the first cooling kettle, the second cooling kettle, the first constant-temperature water tank and the second constant-temperature water tank respectively;
the experimental method of the experimental device for evaluating the influence of simulated drilling on hydrate inhibition and decomposition performance comprises a rotary drilling experimental process and an impact drilling experimental process;
the rotary drilling experimental process comprises the following steps:
s1, methane gas is provided into a first reaction kettle by utilizing a gas supply assembly, water is added into the first reaction kettle by utilizing a first cooling kettle, a first constant-temperature water tank is controlled to cool the first reaction kettle, the temperature in the first reaction kettle is controlled, and the internal condition of the first reaction kettle is observed by utilizing a monitoring assembly until natural gas hydrate is generated in the first reaction kettle;
s2, adding drilling fluid into the first cooling kettle, and cooling the drilling fluid in the first cooling kettle;
s3, starting an electric stirrer and simultaneously conveying drilling fluid in the first cooling kettle into the first reaction kettle;
s4, observing the condition in the first reaction kettle by using a monitoring assembly;
the percussion drilling experiment process comprises the following steps:
s1, methane gas is provided into a second reaction kettle by utilizing a gas supply assembly, water is added into the second reaction kettle by utilizing a second cooling kettle, a first constant-temperature water tank is controlled to cool the second reaction kettle, the temperature in the second reaction kettle is controlled, and the internal condition of the second reaction kettle is observed by utilizing a monitoring assembly until natural gas hydrate is generated in the second reaction kettle;
s2, adding drilling fluid into the second cooling kettle, and cooling the drilling fluid in the second cooling kettle;
s3, starting the hydraulic impactor and simultaneously conveying the drilling fluid in the second cooling kettle into the second reaction kettle;
s4, observing the condition in the second reaction kettle by utilizing the monitoring assembly.
2. The device for evaluating influence of simulated drilling on hydrate inhibition and decomposition performance according to claim 1, wherein: the first cooling kettle and the second cooling kettle have the same structure;
the first cooling kettle comprises a cooling inner cavity and a cooling jacket, the cooling jacket is arranged on the outer side of the cooling inner cavity, cooling liquid is filled in the cooling jacket, and the cooling jacket is used for refrigerating the cooling inner cavity.
3. The device for evaluating influence of simulated drilling on hydrate inhibition and decomposition performance according to claim 1, wherein: the first constant-temperature water tank and the second constant-temperature water tank have the same structure;
the first constant temperature water tank comprises a water tank main body and a lifting hydraulic cylinder, wherein cooling liquid is contained in the water tank main body, the telescopic end of the lifting hydraulic cylinder is fixed at the bottom of the water tank main body, and the lifting hydraulic cylinder drives the water tank main body to move up and down.
4. The device for evaluating influence of simulated drilling on hydrate inhibition and decomposition performance according to claim 1, wherein: a first pressure regulating valve is arranged on a pipeline between the air supply assembly and the first reaction kettle;
a second pressure regulating valve is arranged on a pipeline between the air supply assembly and the second reaction kettle;
the first infusion tube is provided with a first infusion valve and a first delivery pump;
the second infusion tube is provided with a second infusion valve and a second delivery pump;
a first cooling liquid control valve is arranged on a pipeline between the water cooling device and the first cooling kettle;
a second cooling liquid control valve is arranged on a pipeline between the water cooling device and the first constant-temperature water tank;
a third cooling liquid control valve is arranged on a pipeline between the water cooling device and the second cooling kettle;
and a fourth cooling liquid control valve is arranged on a pipeline between the water cooling device and the second constant-temperature water tank.
5. The device for evaluating influence of simulated drilling on hydrate inhibition and decomposition performance according to claim 1, wherein: the air supply assembly comprises an air storage tank and an air compressor, and an air supply valve is arranged on a pipeline between an air outlet of the air storage tank and an air inlet of the air compressor.
6. The device for evaluating influence of simulated drilling on hydrate inhibition and decomposition performance according to claim 1, wherein: the first reaction kettle and the second reaction kettle are made of transparent materials.
7. The device for evaluating influence of simulated drilling on hydrate inhibition and decomposition performance according to claim 1, wherein: the monitoring assembly comprises a first upper temperature sensor, a first lower temperature sensor, a first pressure sensor, a second upper temperature sensor, a second lower temperature sensor, a second pressure sensor and a camera;
the first upper temperature sensor, the first lower temperature sensor and the first pressure sensor are arranged in the first reaction kettle, and the first upper temperature sensor and the first lower temperature sensor are respectively arranged at the upper end and the lower end of the first reaction kettle;
the second upper temperature sensor, the second lower temperature sensor and the second pressure sensor are arranged in the second reaction kettle, and the second upper temperature sensor and the second lower temperature sensor are respectively arranged at the upper end and the lower end of the second reaction kettle;
the cameras are used for monitoring the internal conditions of the first reaction kettle and the second reaction kettle;
the monitoring assembly is electrically connected with the controller.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440832A (en) * | 2003-04-01 | 2003-09-10 | 中国地质大学（武汉） | Comprehensive test equipment for natural gas hydrate |
| CN101532936A (en) * | 2009-04-14 | 2009-09-16 | 中国地质大学（武汉） | Method and device for evaluating inhibiting ability of drilling fluid on formation and decomposition of hydrate |
| CN202229870U (en) * | 2011-10-11 | 2012-05-23 | 中国石油化工股份有限公司 | Petroleum drilling well impacter performance test device |
| CN103541654A (en) * | 2013-10-28 | 2014-01-29 | 陕西高新能源发展有限公司 | Hydraulic impactor |
| CN105301205A (en) * | 2015-11-30 | 2016-02-03 | 中国科学院广州能源研究所 | Visual gas hydrate dynamic experimental device |
| CN105735948A (en) * | 2016-03-23 | 2016-07-06 | 青岛海洋地质研究所 | Indoor experiment simulation method of gas hydrate drilling and producing technology |
| CN108301816A (en) * | 2018-01-09 | 2018-07-20 | 中国石油大学(华东) | The method and apparatus that chemical agent influences gas hydrate dissociation characteristic evaluation |
| CN108918183A (en) * | 2018-09-19 | 2018-11-30 | 吉林大学 | Micro- brill experimental provision and method are turned round in hydrate vibration in ocean |
| CN110286206A (en) * | 2019-06-13 | 2019-09-27 | 中国地质大学（武汉） | The experimental provision and method of hydrate dynamic formation in a kind of evaluation oil/gas drilling |
| CN112211599A (en) * | 2019-07-12 | 2021-01-12 | 中国石油天然气集团有限公司 | Device and method for simulating drilling fluid to invade reservoir stratum to induce hydrate decomposition |
| CN112855121A (en) * | 2021-01-14 | 2021-05-28 | 北京探矿工程研究所 | Medium-high voltage visual type leaking stoppage simulation evaluation device |
| CN113398855A (en) * | 2021-07-14 | 2021-09-17 | 清远市番亿聚氨酯有限公司 | But reation kettle is used in self-cleaning's polyurethane production |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453794B (en) * | 2014-11-20 | 2017-05-17 | 中国科学院广州能源研究所 | Simulation experiment system for whole process of natural gas hydrate exploitation and simulation method |
| CN105277660B (en) * | 2015-10-12 | 2016-09-07 | 中国石油大学(华东) | The device and method in decomposition of hydrate region under the different drilling method of monitoring |
-
2022
- 2022-11-30 CN CN202211522746.XA patent/CN115717517B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440832A (en) * | 2003-04-01 | 2003-09-10 | 中国地质大学（武汉） | Comprehensive test equipment for natural gas hydrate |
| CN101532936A (en) * | 2009-04-14 | 2009-09-16 | 中国地质大学（武汉） | Method and device for evaluating inhibiting ability of drilling fluid on formation and decomposition of hydrate |
| CN202229870U (en) * | 2011-10-11 | 2012-05-23 | 中国石油化工股份有限公司 | Petroleum drilling well impacter performance test device |
| CN103541654A (en) * | 2013-10-28 | 2014-01-29 | 陕西高新能源发展有限公司 | Hydraulic impactor |
| CN105301205A (en) * | 2015-11-30 | 2016-02-03 | 中国科学院广州能源研究所 | Visual gas hydrate dynamic experimental device |
| CN105735948A (en) * | 2016-03-23 | 2016-07-06 | 青岛海洋地质研究所 | Indoor experiment simulation method of gas hydrate drilling and producing technology |
| CN108301816A (en) * | 2018-01-09 | 2018-07-20 | 中国石油大学(华东) | The method and apparatus that chemical agent influences gas hydrate dissociation characteristic evaluation |
| CN108918183A (en) * | 2018-09-19 | 2018-11-30 | 吉林大学 | Micro- brill experimental provision and method are turned round in hydrate vibration in ocean |
| CN110286206A (en) * | 2019-06-13 | 2019-09-27 | 中国地质大学（武汉） | The experimental provision and method of hydrate dynamic formation in a kind of evaluation oil/gas drilling |
| CN112211599A (en) * | 2019-07-12 | 2021-01-12 | 中国石油天然气集团有限公司 | Device and method for simulating drilling fluid to invade reservoir stratum to induce hydrate decomposition |
| CN112855121A (en) * | 2021-01-14 | 2021-05-28 | 北京探矿工程研究所 | Medium-high voltage visual type leaking stoppage simulation evaluation device |
| CN113398855A (en) * | 2021-07-14 | 2021-09-17 | 清远市番亿聚氨酯有限公司 | But reation kettle is used in self-cleaning's polyurethane production |
Non-Patent Citations (1)
| Title |
|---|
| 天然气水合物微钻实验台设计;窦斌, 蒋国盛, 吴翔, 宁伏龙, 汤凤林;石油机械(第04期);4-7 * |
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