A rock desorption system and rock desorption method for oil and gas exploration

Abstract

A rock desorption system and a rock desorption method for oil and gas exploration relate to the technical field of oil and gas exploration. The rock desorption system comprises a desorption device, an analysis device for analyzing the desorbed gas composition, and a data processing device. The desorption device comprises a heater and an inner tank, the inner tank is arranged in the heating chamber of the heater, and the heating chamber is filled with a heat-conducting medium. The air outlet of the inner tank is connected to the air inlet of the analysis device. The analysis device is communicatively connected with the data processing device to transmit the desorbed gas analysis data to the data processing device. It has a simple structure, can realize continuous analysis of desorbed gas, has high analysis efficiency, can complete analysis data statistics at the same time, has high processing efficiency, and has low data error rate. The rock desorption method is simple to operate, easy to execute, has a small manual load, saves time and effort, and can greatly improve the analysis efficiency and data accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas exploration, and in particular to a rock desorption system and a rock desorption method for oil and gas exploration. Background Art

[0002] In the field of oil and gas exploration, it is necessary to analyze the desorbed gas from rocks. The existing analysis equipment has a single function and cannot achieve continuous analysis. Data statistics are not convenient and the analysis efficiency is low.

[0003] In view of this, this application is hereby filed. Summary of the invention

[0004] The first object of the present invention is to provide a rock desorption system for oil and gas exploration, which has a simple structure and can realize continuous analysis of desorbed gas with high analysis efficiency. At the same time, it can complete analysis data statistics with high processing efficiency and low data error rate.

[0005] The second object of the present invention is to provide a rock desorption method for oil and gas exploration, which is simple to operate, easy to execute, has a small manual load, saves time and effort, and can greatly improve analysis efficiency and data accuracy.

[0006] The embodiment of the present invention is achieved as follows:

[0007] A rock desorption system for oil and gas exploration comprises: a desorption device, an analysis device for analyzing desorbed gas components, and a data processing device. The desorption device comprises a heater and an inner liner, the inner liner is arranged in a heating chamber of the heater, and the heating chamber is filled with a heat-conducting medium. The gas outlet of the inner liner is connected to the gas inlet of the analysis device. The analysis device is connected to the data processing device for communication, so as to transmit the desorbed gas analysis data to the data processing device.

[0008] Furthermore, the inner tank is coaxially arranged with the heating chamber, and the heat transfer medium is heat transfer oil.

[0009] Furthermore, the air outlet of the inner container passes through the top wall of the heating chamber, and the inner container is rotatably matched with the heater through the air outlet, and the inner container is driven by a driver.

[0010] Furthermore, the side wall of the inner pot has a recessed portion, and the recessed portion is formed by the side wall of the inner pot being recessed toward the heating chamber along its radial direction.

[0011] Furthermore, the recessed portions are elliptical in shape, are evenly spaced along the circumference of the inner container, and are evenly spaced along the axial direction of the inner container.

[0012] Furthermore, the outer wall of the inner container is also provided with a protruding column, which protrudes from the outer wall of the inner container in the radial direction. Along the circumference of the inner container, there is a protruding column between two adjacent recessed parts, and the protruding columns are evenly spaced. Along the axial direction of the inner container, the protruding columns are also evenly spaced.

[0013] Furthermore, the end wall of the protruding column is arranged perpendicular to the central axis thereof.

[0014] Further, the gas quantity metering assembly of the analysis device includes: a first metering tank and a second metering tank. The bottoms of the first metering tank and the second metering tank are connected through a connecting pipe. The first metering tank and the second metering tank are both selectively connected to the gas inlet of the analysis device, and the first metering tank has a first exhaust pipe, and the second metering tank has a second exhaust pipe.

[0015] Furthermore, the rock desorption system also includes: a remote transmitting station and a central data center. The data processing device is connected to the remote transmitting station in communication, so that the analysis data processed by the data processing device can be transmitted outward through the remote transmitting station. The remote transmitting station is connected to the central data center in communication, so as to transmit the analysis data to the central data center for remote monitoring. Optionally, the remote transmitting station and the central data center are connected via 5G signal communication.

[0016] A rock desorption method using the rock desorption system for oil and gas exploration comprises: using a heater to heat the inner tank through a heat-conducting medium, so that the desorbed gas enters the analysis device through the gas outlet of the inner tank for analysis.

[0017] The beneficial effects of the embodiments of the present invention are:

[0018] During use of the rock desorption system provided by an embodiment of the present invention, rock particles (blocks) to be desorbed are loaded into an inner tank and heated by a heater. The heat is evenly transferred to the inner tank through a heat-conducting medium, thereby achieving uniform heating of the rock sample.

[0019] As the heating progresses, the desorbed gas is continuously emitted and transmitted through the gas outlet of the inner tank to the analysis device through the pipeline for desorbed gas component analysis. The analysis data is finally transmitted to the data processing device for sorting and collection.

[0020] Through this design, continuous real-time analysis of the desorbed gas can be achieved without first desorbing all the desorbed gas and then analyzing it. This not only allows for an overall analysis of the desorbed gas, but also allows for real-time monitoring of the desorption process, making it easier to evaluate the desorption process.

[0021] In general, the rock desorption system provided by the embodiment of the present invention has a simple structure, can realize continuous analysis of desorbed gas, has high analysis efficiency, can complete analysis data statistics, has high processing efficiency, and has low data error rate. The rock desorption method provided by the embodiment of the present invention is simple to operate, easy to execute, has a small manual load, saves time and effort, and can greatly improve analysis efficiency and data accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of the structure of a rock desorption system provided by an embodiment of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the internal structure of the heater of the medium rock desorption system;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of the inner liner of the medium rock desorption system from a first perspective;

[0026] Figure 4 for Figure 2 A schematic diagram of the structure of the inner liner of the rock desorption system from a second perspective;

[0027] Figure 5 for Figure 2 A schematic diagram of the structure of the rock desorption system from a first-person perspective with the inner liner in the open state;

[0028] Figure 6 for Figure 2 A schematic diagram of the structure of the rock desorption system from a second perspective with the inner liner in an open state;

[0029] Figure 7 for Figure 1 Schematic diagram of the flow chart of the gas quantity metering component of the analysis device of the rock desorption system;

[0030] Figure 8 for Figure 1 Schematic diagram of the structure of the gas quantity metering component of the analysis device of the rock desorption system.

[0031] Icons: rock desorption system 1000; desorption device 100; heater 110; heating chamber 111; inner tank 130; recessed portion 131; raised column 132; analysis device 200; first metering tank 210; first drain pipe 220; second metering tank 230; second drain pipe 240; connecting pipe 250; data processing device 300; remote transmitting station 400; central data center 500. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In addition, the terms "parallel", "vertical", etc. do not mean that the components must be absolutely parallel or vertical, but can be slightly tilted. For example, "parallel" only means that its direction is more parallel than "vertical", and does not mean that the structure must be completely parallel, but can be slightly tilted.

[0037] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] The terms "roughly" and "basically" are intended to explain that the relevant content does not require absolute accuracy, but can have certain deviations. For example, "roughly equal to" does not only mean absolute equality. Since it is difficult to achieve absolute "equality" in actual production and operation, there are generally certain deviations. Therefore, in addition to absolute equality, "roughly equal to" also includes the above-mentioned situation with certain deviations. Taking this as an example, in other cases, unless otherwise specified, the terms "roughly" and "basically" have similar meanings to the above.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example

[0041] Please refer to Figure 1 , this embodiment provides a rock desorption system 1000 for oil and gas exploration.

[0042] The rock desorption system 1000 comprises: a desorption device 100 , an analysis device 200 for analyzing the composition of the desorbed gas, and a data processing device 300 .

[0043] The desorption device 100 includes a heater 110 and an inner liner 130. The inner liner 130 is arranged in a heating chamber 111 of the heater 110. The heating chamber 111 is filled with a heat-conducting medium. The gas outlet of the inner liner 130 is connected to the gas inlet of the analysis device 200. The analysis device 200 is connected to the data processing device 300 for transmitting the desorption gas analysis data to the data processing device 300. The inner liner 130 is made of a heat-conducting material.

[0044] During use, the rock particles (blocks) to be desorbed are loaded into the inner liner 130 and heated by the heater 110. The heat is evenly transferred to the inner liner 130 through the heat-conducting medium, thereby achieving uniform heating of the rock sample.

[0045] As the heating progresses, the desorbed gas is continuously emitted and is transmitted through the gas outlet of the inner liner 130 to the analysis device 200 for desorbed gas component analysis. The analysis data is finally transmitted to the data processing device 300 for sorting and collection.

[0046] Through this design, continuous real-time analysis of the desorbed gas can be achieved without first desorbing all the desorbed gas and then analyzing it. This not only allows for an overall analysis of the desorbed gas, but also allows for real-time monitoring of the desorption process, making it easier to evaluate the desorption process.

[0047] In general, the rock desorption system 1000 has a simple structure, can realize continuous analysis of desorbed gas, has high analysis efficiency, and can complete analysis data statistics at the same time, has high processing efficiency and low data error rate.

[0048] In this embodiment, the heating chamber 111 of the heater 110 is cylindrical, the inner tank 130 is also roughly cylindrical, the inner tank 130 is coaxially arranged with the heating chamber 111, and the heat transfer medium is heat transfer oil.

[0049] Please combine Figures 2 to 6 The air outlet of the inner liner 130 penetrates the top wall of the heating chamber 111, and the inner liner 130 is rotatably matched with the heater 110 through the air outlet, and the inner liner 130 is driven by a driver (not shown in the figure). The air outlet of the inner liner 130 is rotatably connected to the desorption gas transmission pipe and is rotatably sealed.

[0050] The side wall of the inner container 130 has a recessed portion 131, which is formed by the side wall of the inner container 130 being recessed along its radial direction toward the heating chamber 111. The recessed portion 131 is elliptical. The recessed portions 131 are evenly spaced along the circumference of the inner container 130. The recessed portions 131 are also evenly spaced along the axial direction of the inner container 130.

[0051] The outer wall of the inner liner 130 is also provided with a protruding column 132, which protrudes radially from the outer wall of the inner liner 130. Along the circumference of the inner liner 130, there is a protruding column 132 between two adjacent recessed portions 131, and the protruding columns 132 are evenly spaced. Along the axial direction of the inner liner 130, the protruding columns 132 are also evenly spaced.

[0052] Through the above design, the recessed portion 131 can further increase the direct contact area between the heat transfer medium and the inner liner 130, thereby improving the heating efficiency. During the heating and desorption process, the inner liner 130 can be driven by a driver to rotate, so that the heat transfer medium can heat the inner liner 130 more evenly, thereby improving the uniformity of heating.

[0053] In addition, the presence of the recessed portion 131 can also disturb the heat-conducting medium to a certain extent during the rotation process, thereby promoting a more uniform heat distribution of the heat-conducting medium itself, thereby inevitably causing local temperature differences, and ultimately making the heat-conducting medium heat the inner tank 130 more uniformly.

[0054] On the other hand, during the rotation of the inner liner 130, the protruding column 132 can also stir the heat transfer medium, and the stirring effect is stronger, so that the heat transfer oil can better play a role in heat transfer. In this embodiment, along the radial direction of the inner liner 130, the length of the protruding column 132 is one tenth of the outer diameter of the inner liner 130, and the length of the protruding column 132 is one twentieth of the inner diameter of the heating chamber 111. Through this design, it is possible to effectively stir the heat transfer medium while avoiding excessive stirring of the heat transfer medium and preventing the heat transfer oil from splashing, thereby ensuring the overall stability of the oil phase and facilitating the uniform distribution and transfer of heat in the heat transfer oil.

[0055] In this embodiment, the end wall of the protruding column 132 is a plane wall and is arranged perpendicular to the central axis thereof. This can improve the stirring effect of the protruding column 132 on the heat transfer oil. During the stirring process, local eddies are easily generated at the end wall of the protruding column 132, thereby improving the disturbance capacity of the oil phase and facilitating the uniform distribution and transfer of heat in the heat transfer oil.

[0056] Furthermore, please combine Figures 7-8 The gas quantity measuring assembly of the analysis device 200 includes: a first measuring tank 210 and a second measuring tank 230. The bottoms of the first measuring tank 210 and the second measuring tank 230 are connected through a connecting pipe 250. The first measuring tank 210 and the second measuring tank 230 are both selectively connected to the gas inlet of the analysis device 200. The first measuring tank 210 has a first exhaust pipe 220, and the second measuring tank 230 has a second exhaust pipe 240.

[0057] During use, before the analysis device 200 directly analyzes and measures the components of the desorbed gas, it is necessary to calculate the amount of the desorbed gas entering the analysis device 200 , which is achieved by using the gas amount metering component.

[0058] The specific working mode of the gas quantity metering component is as follows: when the desorbed gas enters the analysis device 200, it is first metered by the gas quantity metering component. The first metering tank 210 and the second metering tank 230 are first pre-filled with some water.

[0059] First, the air inlet valve of the first metering tank 210 is opened, the first exhaust pipe 220 of the first metering tank 210 is closed, the air inlet valve of the second metering tank 230 is closed, and the second exhaust pipe 240 of the second metering tank 230 is opened. The desorbed gas enters the first metering tank 210, and as the desorbed gas enters, water is pressed into the second metering tank 230, so that the amount of gas entering the first metering tank 210 is counted.

[0060] When the first metering tank 210 is about to be filled with gas, the air inlet valve of the first metering tank 210 is closed, the first exhaust pipe 220 of the first metering tank 210 is opened, the air inlet valve of the second metering tank 230 is opened, and the second exhaust pipe 240 of the second metering tank 230 is closed. The desorbed gas no longer enters the first metering tank 210 but enters the second metering tank 230. As the desorbed gas enters, water is pressed into the first metering tank 210, so that the amount of gas entering the second metering tank 230 is counted.

[0061] As described above, when the second metering tank 230 is about to be full of desorbed gas, the first metering tank 210 is switched to collect the desorbed gas. This process is repeated to achieve continuous measurement of the desorbed gas without interruption. The first metering tank 210 and the second metering tank 230 can be used alternately to achieve continuous measurement.

[0062] It should be noted that if the analysis device 200 is only suitable for measuring the amount of desorbed gas, there is no need to connect the outlet ends of the first exhaust pipe 220 and the second exhaust pipe 240 to the analysis component of the analysis device 200, and the gas can be directly discharged into the collection tank. If it is necessary to perform component analysis on the desorption, the outlet ends of the first exhaust pipe 220 and the second exhaust pipe 240 can be connected to the analysis component of the analysis device 200 for analysis, or the desorbed gas can be collected uniformly and analyzed at the same time. The analysis method can be flexibly selected according to actual needs.

[0063] Furthermore, the rock desorption system 1000 also includes: a remote transmitting station 400 and a central data center 500. The data processing device 300 is connected to the remote transmitting station 400 in communication, so that the analysis data processed by the data processing device 300 can be transmitted to the outside through the remote transmitting station 400. The remote transmitting station 400 is connected to the central data center 500 in communication, so as to transmit the analysis data to the central data center 500, so as to perform remote monitoring. Optionally, the remote transmitting station 400 and the central data center 500 are connected through 5G signal communication.

[0064] Through the above design, the data processing device 300 and the remote transmitting station 400 can be set in the laboratory or analysis room or construction site, and the central data center 500 can be set in a unified office area or a unified management area to realize the unified collection and aggregation of data from various analysis locations. On the one hand, the monitoring information of the central data center 500 can be used to comprehensively reflect and monitor the data information of all analysis locations in real time, which is convenient for optimizing the management and mining work of each analysis location. The introduction of the central data center 500 realizes remote unified and transparent management, which is convenient for effectively improving the management quality of the landfill.

[0065] Furthermore, the remote transmission station 400 and the central data center 500 may be connected via 5G signal communication.

[0066] This embodiment also provides a rock desorption method using the above-mentioned rock desorption system 1000 for oil and gas exploration, which includes: using the heater 110 to heat the inner liner 130 through a heat-conducting medium, so that the desorbed gas enters the analysis device 200 through the gas outlet of the inner liner 130 for analysis.

[0067] In summary, the rock desorption system 1000 has a simple structure, can realize continuous analysis of desorbed gas, has high analysis efficiency, can complete analysis data statistics, has high processing efficiency, and has low data error rate. The rock desorption method is simple to operate, easy to execute, has low manual load, saves time and effort, and can greatly improve analysis efficiency and data accuracy.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rock desorption system for oil and gas exploration, characterized in that: include: A desorption device, an analysis device for analyzing the desorbed gas components, and a data processing device; The desorption device comprises a heater and an inner liner, wherein the inner liner is arranged in a heating chamber of the heater, and the heating chamber is filled with a heat-conducting medium; the gas outlet of the inner liner is connected to the gas inlet of the analysis device; the analysis device is communicatively connected to the data processing device to transmit the desorption gas analysis data to the data processing device; The inner tank is coaxially arranged with the heating chamber, and the heat transfer medium is heat transfer oil; The air outlet of the inner container passes through the top wall of the heating chamber, and the inner container is rotatably matched with the heater through the air outlet, and the inner container is driven by a driver; The side wall of the inner pot has a recessed portion, and the recessed portion is formed by the side wall of the inner pot being recessed toward the heating chamber along its radial direction; The recessed portions are elliptical in shape; along the circumference of the inner container, the recessed portions are evenly spaced; along the axial direction of the inner container, the recessed portions are also evenly spaced; The outer wall of the inner liner is also provided with a raised column, which protrudes radially from the outer wall of the inner liner; along the circumference of the inner liner, the raised column is provided between two adjacent recessed portions, and the raised columns are evenly spaced; along the axial direction of the inner liner, the raised columns are also evenly spaced.

2. The rock desorption system according to claim 1, characterized in that: The end wall of the protruding column is arranged perpendicular to the central axis thereof.

3. The rock desorption system according to claim 1, characterized in that: The gas quantity metering component of the analysis device includes: a first metering tank and a second metering tank; the bottoms of the first metering tank and the second metering tank are connected by a connecting pipe; the first metering tank and the second metering tank are selectively connected to the air inlet of the analysis device, the first metering tank has a first exhaust pipe, and the second metering tank has a second exhaust pipe.

4. The rock desorption system according to claim 1, characterized in that: The rock desorption system also includes: a remote transmitting station and a central data center; the data processing device is communicatively connected to the remote transmitting station so that the analysis data processed by the data processing device can be transmitted outward through the remote transmitting station; the remote transmitting station is communicatively connected to the central data center to transmit the analysis data to the central data center for remote monitoring; optionally, the remote transmitting station and the central data center are connected via 5G signal communication.

5. A rock desorption method using the rock desorption system for oil and gas exploration according to any one of claims 1 to 4, characterized in that: include: The heater is used to heat the inner container through the heat-conducting medium, so that the desorbed gas enters the analysis device through the gas outlet of the inner container for analysis.

Images