CN120253374A - A temperature-controlled gas-bearing formation simulation and acoustic parameter monitoring device - Google Patents
A temperature-controlled gas-bearing formation simulation and acoustic parameter monitoring device Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
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- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/11—Analysing solids by measuring attenuation of acoustic waves
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
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Abstract
本发明涉及一种温控式含气地层模拟及声学参数监测装置，包括：气体制备模块、气体输送模块、土体声学参数检测模块及数据采集与处理模块；土体声学参数检测模块，包括：用于提供实验土体容置空间的反应釜，以及用于对反应釜的实验温度环境进行调控的冷凝箱；气体制备模块、气体输送模块和反应釜通过管线连接，气体制备模块，用于制备含气地层模拟的气体，经气体输送模块输送气体，并调节实验的气体压力环境；数据采集与处理模块，包括：声学参数采集装置和计算机处理系统；声学参数采集装置，与反应釜相连接，用于在反应釜的实验温度环境和气体压力环境达到预设要求后，采集声学参数数据；计算机处理系统，对采集的声学参数数据进行处理和分析。
The invention relates to a temperature-controlled gas-bearing formation simulation and acoustic parameter monitoring device, comprising: a gas preparation module, a gas delivery module, a soil acoustic parameter detection module and a data acquisition and processing module; the soil acoustic parameter detection module comprises: a reactor for providing an experimental soil accommodating space, and a condenser for regulating the experimental temperature environment of the reactor; the gas preparation module, the gas delivery module and the reactor are connected through a pipeline, the gas preparation module is used to prepare gas for gas-bearing formation simulation, deliver the gas through the gas delivery module, and adjust the experimental gas pressure environment; the data acquisition and processing module comprises: an acoustic parameter acquisition device and a computer processing system; the acoustic parameter acquisition device is connected to the reactor and is used to collect acoustic parameter data after the experimental temperature environment and gas pressure environment of the reactor reach preset requirements; the computer processing system processes and analyzes the collected acoustic parameter data.
Description
Technical Field
The invention relates to the technical field of oil and gas exploration and development of finished products, in particular to a temperature control type gas-bearing stratum simulation and acoustic parameter monitoring device.
Background
In the oil and gas exploration and development process, an identification method aiming at shallow gas geological risks is needed. Shallow gas refers to hydrocarbon gas aggregation with burial depth less than 500 m, which is imposed on land formations, polar frozen earth zones and the like. The gas reservoir has the characteristics of abnormal pressure and irregular spatial distribution, is easy to induce engineering disasters such as blowout, stratum collapse and the like in drilling engineering, and forms a serious threat to the safety of conventional oil and gas resource exploration and development operation.
In the prior art, a report of analyzing a shallow gas stratum by establishing a physical model exists, however, the existing physical model has limited reduction degree on actual geological conditions and is high in construction and maintenance cost. In addition, the method is difficult to regulate and adjust different geological environments, has long experimental period, is difficult to carry out repeated experiments for many times to verify the stability of results, and cannot meet the requirements of oil gas production.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the temperature control type gas-containing stratum simulation and acoustic parameter monitoring device which can simulate different temperatures or soil parameters in the same device, is convenient for simulating test conditions required by testing the gas-containing stratum, and is time-saving, labor-saving, simple and efficient in acquiring the acoustic parameters of the gas-containing stratum based on the experimental device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
In a first aspect, the application provides a temperature control type gas-containing stratum simulation and acoustic parameter monitoring device, which comprises a gas preparation module, a gas conveying module, a soil acoustic parameter detection module and a data acquisition and processing module, wherein:
The soil acoustic parameter detection module comprises a reaction kettle for providing an experimental soil accommodating space for simulating a gas-containing stratum and a condensing box for regulating and controlling the experimental temperature environment of the reaction kettle;
The gas preparation module, the gas conveying module and the reaction kettle are sequentially connected through pipelines, and the gas preparation module is used for preparing gas simulated by a gas-containing stratum, conveying the gas through the gas conveying module and adjusting the experimental gas pressure environment;
The data acquisition and processing module comprises an acoustic parameter acquisition device and a computer processing system, wherein the acoustic parameter acquisition device is connected with the reaction kettle and is used for acquiring acoustic parameter data after the experimental temperature environment and the gas pressure environment of the reaction kettle reach preset requirements, and the computer processing system is used for processing and analyzing the acquired acoustic parameter data.
In one implementation mode, the reaction kettle adopts a nested structure of an inner layer box body and an outer layer box body, wherein the inner layer box body is used for accommodating experimental soil bodies, and a space between the inner layer box body and the outer layer box body is used for circulating condensate of the condensing box.
In an implementation mode, the reaction kettle comprises an outer layer box body, an inner layer box body, a condensate circulation interface, a detachable top layer cover plate and an anchor lug, wherein the outer layer box body is formed by sequentially connecting the left side face of the reaction kettle, the front face of the reaction kettle, the right side face of the reaction kettle and the back face of the reaction kettle, the top open type outer layer box body is formed, the length and width of the top open type outer layer box body are 1000mm in height, 900mm in height and 900mm in length, 900mm in length and 1500mm in length, the inner layer box body and the outer layer box body are coaxially nested, a closed annular flow channel is formed between the outer layer box body and the inner layer box body, the condensate circulation interface adopts a double-channel design, an experimental gas inlet (31) and an experimental gas outlet (34) are symmetrical to two sides of the box body and are higher than the air inlet, the detachable top layer cover plate is consistent with the inner layer box body in length and width and is used for sealing and heat insulation, and the anchor lug is located at the midpoint of each side of the top of the outer layer box body and the midpoint of the bottom.
In one implementation, the length, width and height dimensions of the whole condenser are 960mm x 760mm x 1330mm, and the whole condenser is connected by a condensate circulation interface through an extension pipeline and is provided with a ball valve group.
In one implementation mode, the gas preparation module consists of an air compressor, a pressure gauge, a buffer tank and an adsorption tower, wherein the pressure gauge is positioned at an outlet of the air compressor, the buffer tank is sequentially connected with the air compressor through a pipeline, a group of two valves of the valve group are connected to an inlet of the adsorption tower, and the adsorption tower adopts a top inlet-bottom outlet flow direction design.
In one implementation, the pipeline is a DN80 stainless steel seamless pipe with a pressure rating of 2.5MPa.
In one implementation, the gas delivery module consists of a nitrogen storage tank, a pressure relief valve, a thermal mass flowmeter, and a shut-off check valve.
In one implementation, the acoustic parameter acquisition device comprises an ultrasonic detector and a piezoelectric composite transducer.
In the temperature control type gas-containing stratum simulation and acoustic multi-parameter detection device, preferably, the adsorption tower adopts a top gas inlet-bottom gas outlet flow direction design, a porous structure (aperture phi 2-5 mm) and working pressure of 0.6-1.0 MPa (gauge pressure) are in accordance with ASME BPVC VIII pressure vessel specifications.
In one implementation, the nitrogen storage tank is made of carbon steel, and the design pressure is matched with the outlet pressure of the air compressor.
In one implementation, the pressure relief valve in the gas delivery module is a pilot pressure relief valve.
In one implementation mode, the flowmeter adopts a thermal mass flowmeter, can directly measure the mass flow of gas, does not need temperature and pressure compensation, and has the accuracy of +/-1% -1.5%.
In one implementation, the stop check valve is a double-plate check valve, and the valve body is made of SS304/316L material.
In an implementation mode, a reaction kettle in the temperature-pressure adjustable soil acoustic parameter detection module is composed of a reaction kettle left side 323, a reaction kettle front 324, a reaction kettle right side 325 and a reaction kettle back 326 which are sequentially connected to form an open top outer layer box, an inner layer box is designed in the outer layer box, the inner layer box and the outer layer box are coaxially nested and arranged to form a closed flow channel for condensate circulation, 321 is a reaction kettle outer layer box anchor lug located at the midpoint position of each side of the top and the midpoint position of two sides of the bottom for moving the reaction kettle, 322 is a reaction kettle detachable top cover plate for sealing and bearing a load to achieve the effect of compacting experimental soil, 331 and 332 are condensate circulation interfaces, 31 is a nitrogen inlet, and 34 is a nitrogen outlet.
In one implementation, the thermometer is an infrared thermometer.
In one implementation mode, the air inlet is used for realizing uniform distribution of nitrogen in the reaction kettle, and the air outlet is used for realizing uniform diffusion of nitrogen.
In one implementation, the condensate circulation interface is of a dual channel design, and the flow rate is set to be 0.5m/s.
In one implementation mode, the cooling box adopts a DLSB-100 model low-temperature cooling liquid circulating pump, a cold source is provided by a circulating pump conveying function, and the temperature adjustment range is-30 ℃ to room temperature, so that the temperature control function of the device is realized.
In one implementation, the ultrasonic detector in the data acquisition and processing module sends out 16 test signals, and the data acquisition system built in the tester can measure and record waveforms and data required by experiments.
In one implementation, the transducer is made of a piezoelectric composite material, has pressure resistance and waterproof sealing performance, and adopts dual channels to simultaneously measure and collect waveforms of longitudinal waves and transverse waves. Converted into digitized waveforms by CompuSope14100 acquisition cards and recorded in a computer.
In one implementation, the computer software processing system uses concrete sound wave detection analysis software to automatically analyze acoustic parameters such as sound velocity, frequency, amplitude and the like.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. The gas preparation, conveying, temperature and pressure regulation and acoustic detection module is in seamless connection, so that the integration of gas-bearing stratum simulation and multi-parameter detection is realized, and the tedious operation of the traditional split type equipment is avoided.
2. The invention adopts DLSB-100 type low-temperature circulating pump and infrared thermometer to realize continuous accurate adjustment (temperature control precision +/-0.5 ℃) from minus 30 ℃ to room temperature, and can simulate the temperature gradient from extremely frozen soil to normal-temperature stratum by combining the double-layer jacket structural design of the reaction kettle.
3. According to the invention, the independent regulation and control of the porosity (10% -45%), the water content (5% -30%) and the cementing strength are realized through the synergistic effect of the vertical double-layer buffer tank (volume matching coefficient 1.3) and the porous structure (aperture phi 2-5 mm).
4. The invention adopts a top inlet-bottom outlet flow direction design and a double-plate check valve (SS 304/316L material), and combines a nitrogen storage tank pressure matching technology (0.6-1.0 MPa gauge pressure) to ensure the uniformity of gas diffusion in the reaction kettle.
5. The invention realizes the gas-liquid-solid three-phase dynamic balance simulation in the freeze thawing cycle based on a double-channel condensate circulation interface (flow velocity of 0.5 m/s) and a thermal mass flowmeter (precision of +/-1% -1.5%).
6. The invention adopts ZT-805 nonmetal ultrasonic monitoring analyzer (16 test signals) and piezoelectric composite transducer (withstand voltage 20 MPa) to realize synchronous acquisition of longitudinal/transverse wave double channels (sampling rate 100 MHz), and waveform distortion rate is less than 0.5%.
7. The pipeline of the invention uses DN80 stainless steel seamless pipe (withstand voltage 2.5 MPa) and a pilot pressure reducing valve to ensure the safety of high-pressure gas delivery, and the reactor meets ASME BPVC VIII specifications, and the leakage rate is less than 0.005mL/min.
Drawings
FIG. 1 is a schematic diagram of a temperature-controlled gas-bearing stratum simulation and acoustic multi-parameter detection device according to the present invention;
FIG. 2 is an isometric view of a reactor apparatus provided by the present invention;
FIG. 3 is a right side view of the reaction kettle device provided by the invention;
In the present application, all of the figures are schematic drawings which are intended to illustrate the principles of the application only and are not to scale.
The figures are marked as follows:
11-air compressor, 12-manometer, 13-buffer tank, 14-valve group, 15-adsorption tower, 21-nitrogen storage tank, 22-relief valve, 23-flowmeter, 24-stop check valve, 31-air inlet, 32-reaction kettle, 33-condensate circulation interface, 34-air outlet, 35-ball valve group, 36-condensing box, 41-ultrasonic detector, 42-transducer, 43-computer software processing system, 321-anchor ear, 322-reaction kettle cover plate, 323-reaction kettle left side face, 324-reaction kettle front face, 325-reaction kettle right side face, 326-reaction kettle back face, 331-condensate circulation interface 1,332-condensate circulation interface 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
Aiming at the problems of the prior art, the embodiment of the invention provides a temperature control type gas-containing stratum simulation and acoustic parameter monitoring device, which comprises a gas preparation module, a gas conveying module, a soil acoustic parameter detection module and a data acquisition and processing module, wherein:
The soil acoustic parameter detection module comprises a reaction kettle for providing an experimental soil accommodating space for simulating a gas-containing stratum and a condensing box for regulating and controlling the experimental temperature environment of the reaction kettle;
The gas preparation module, the gas conveying module and the reaction kettle are sequentially connected through pipelines, and the gas preparation module is used for preparing gas simulated by a gas-containing stratum, conveying the gas through the gas conveying module and adjusting the experimental gas pressure environment;
The data acquisition and processing module comprises an acoustic parameter acquisition device and a computer processing system, wherein the acoustic parameter acquisition device is connected with the reaction kettle and is used for acquiring acoustic parameter data after the experimental temperature environment and the gas pressure environment of the reaction kettle reach preset requirements, and the computer processing system is used for processing and analyzing the acquired acoustic parameter data.
The device provided by the application and the details thereof are further described below in detail based on the drawings of the application, and the technical effects thereof are described.
As shown in FIG. 1, the temperature-controlled gas-containing stratum simulation and acoustic multi-parameter detection device comprises an air compressor 11, a pressure gauge 12, a buffer tank 13, a valve group 14 and an adsorption tower 15, which are used for preparing nitrogen for simulating a gas reservoir of a gas-containing stratum. It should be noted that the line 5 according to the present invention adopts DN80 stainless steel seamless tube.
As shown in FIG. 1, the device of the invention further comprises a nitrogen storage tank 21, a pressure gauge 22, a flow meter 23, a stop check valve 24, a pressure gauge 25, an air inlet 31, a reaction kettle 32, a condensate circulation interface 33, an air outlet 34, a ball valve group 35, a condensation tank 36, an ultrasonic detector 41, a transducer 42 and a computer software processing system 43. The nitrogen storage tank 21 provides stable pressure for conveying nitrogen, the pressure gauges 22 and 25 and the flowmeter 23 monitor nitrogen flow conditions, the stop check valve 24 prevents nitrogen backflow, the reaction kettle 32 and the condensing box 35 serve as devices to achieve a temperature control function, the transducer 42 collects acoustic multi-parameters at four positions, the position distribution is distinguished according to colors, the acoustic multi-parameters obtained by the ultrasonic detector 41 through the transducer 42 are converted into a waveform chart, and the computer software processing system 43 further analyzes the acoustic data to improve experimental accuracy.
In one or more embodiments, a temperature-controlled gas-bearing stratum simulation and acoustic multi-parameter detection device according to the present invention further includes a ball valve set 35 disposed between the condensate circulation interface 33 and the condensation tank 36.
The working principle of the device of the invention is as follows:
S1, gas preparation
The air compressor 11 and the buffer tank 13 are started, the valve group 14 is opened to enable the adsorption tower 15 to be in a working state, and the nitrogen storage tank 21 is opened to store nitrogen. Note that the number of pressure gauge 12 is required to be paid attention to in real time during the whole process of preparing nitrogen.
S2, configuring soil mass and presetting energy converter
A certain amount of mixed sand clay is prepared according to experimental requirements by using 1250-mesh bentonite and 80-mesh quartz sand, a chloroprene rubber air bag (not marked in the figure) with an inflating and deflating interface is prepared, the size of the chloroprene rubber air bag is 900mm by 200mm, the uncompacted mixed sand clay is filled into the chloroprene rubber air bag, the rest mixed sand clay is compacted into two blocks for standby (each block with the size of 900mm by 600 mm), a transducer 421 is fixed on the left side of the bottom of the reaction kettle 32, and a transducer 422 is fixed on the right side of the bottom of the reaction kettle 32.
S3, filling the first layer of soil body and starting the condensing box
Adding a piece of mixed sand clay compacted in the step S2 into the reaction kettle 32, fixing the transducer 3 on the left side of the plane, fixing the transducer 4 on the right side of the plane (the position schematic diagram is shown in figure 1 of the specification), opening a circulation function of the condensation tank 36, opening a ball valve 35 to add condensate into the condensation tank 36 until the condensate flows back to the condensation tank 36 from an interlayer runner of the reaction kettle 32, indicating that the condensate adding operation is completed, and opening a cooling function of the condensation tank 36.
S4, constructing a gas-bearing stratum
And (2) connecting the neoprene air bag interface in the step (S2) to an air inlet 31 and an air outlet 34 of a reaction kettle 32, opening a nitrogen storage tank 21 and a stop check valve 24, judging whether the stratum air content meets the experimental requirement according to a flowmeter 23, and closing the stop check valve after the stratum air content meets the experimental requirement. During the inflation, the transducers 5 and 6 are fixed on the upper surface of the neoprene balloon (the transducer 5 is vertical to the transducer 3 in the axial line, the transducer 6 is vertical to the transducer 1 in the axial line),
S5, filling the complete stratum to reach the experimental set temperature
Adding the residual compacted mixed sand clay in the step S3 to a reaction kettle, embedding transducers 7 and 8 at the top (the transducer 7 is vertical to the transducer 4 in an axial line, the transducer 8 is vertical to the transducer 2 in an axial line), covering the reaction kettle 32 by using a reaction kettle cover plate 322, taking down the reaction kettle cover plate 322 when the reaction kettle reaches the temperature required by the experiment, and starting the heat preservation function of the condensing box 36.
S6, data synchronous acquisition and processing
The ultrasonic detector 41 is used for exciting 16 test signals (frequency is 10 Hz-20 kHz), the transducers 1-8 are used for synchronously receiving longitudinal wave and transverse wave waveforms, compuSope14100 acquisition cards (sampling rate is 100 MHz) are used for converting the signals into digital sequences, acoustic parameters such as sound velocity, frequency, amplitude and the like are automatically analyzed through concrete sound wave detection analysis software V3.1 of the Zhongzhuoke instrument, and the computer processing system 43 is used for further analyzing and processing the acoustic parameters to calculate wave impedance and acoustic attenuation coefficients.
In the several embodiments provided by the present invention, it should be understood that the disclosed systems and methods may be implemented in other ways. For example, the above-described embodiments of the system apparatus are merely illustrative, and for example, the above-described division of module units is merely a logical function division, and there may be another division manner in actual implementation, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a Processor (Processor) to perform part of the steps of the method according to the embodiments of the present invention. The storage medium includes a U disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
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Citations (4)
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| CN101936833A (en) * | 2010-07-21 | 2011-01-05 | 中国海洋石油总公司 | A device and method for simulating the formation of natural gas hydrate and measuring its physical parameters |
| CN210834784U (en) * | 2019-08-20 | 2020-06-23 | 青岛海洋地质研究所 | Hydrate core sample preparation and its combined resistance imaging and acoustic detection device |
| CN216560402U (en) * | 2021-11-25 | 2022-05-17 | 青岛海洋地质研究所 | Low-frequency acoustic experimental setup for large-scale hydrate sediments |
| CN115932036A (en) * | 2021-08-16 | 2023-04-07 | 中国石油化工股份有限公司 | Device and method for measuring compressional wave velocity in shallow gas-bearing strata for deepwater drilling |
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2025
- 2025-03-26 CN CN202510363920.8A patent/CN120253374A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936833A (en) * | 2010-07-21 | 2011-01-05 | 中国海洋石油总公司 | A device and method for simulating the formation of natural gas hydrate and measuring its physical parameters |
| CN210834784U (en) * | 2019-08-20 | 2020-06-23 | 青岛海洋地质研究所 | Hydrate core sample preparation and its combined resistance imaging and acoustic detection device |
| CN115932036A (en) * | 2021-08-16 | 2023-04-07 | 中国石油化工股份有限公司 | Device and method for measuring compressional wave velocity in shallow gas-bearing strata for deepwater drilling |
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