Continuous spectrum gas logging device

Abstract

The utility model relates to a continuous spectrum gas logging device which comprises a shell, a frame body, a first adjusting mechanism, a sample pool, a spectrograph and a signal processing module are installed in the shell, the frame body is connected with the inner top wall of the shell in a sliding mode, the first adjusting mechanism is connected with the bottom of the frame body, and the sample pool is connected with the spectrograph. The first adjusting mechanism is used for adjusting the distance from the frame body to the sample pool, a light source, a light source lens and a second adjusting mechanism are mounted in the frame body, the light source lens is located between the light source and the sample pool, and the second adjusting mechanism is used for adjusting the distance from the light source lens to the light source. According to the continuous spectrum gas logging device, the distance among the light source lamp, the light source lens and the sample pool can be adjusted conveniently, and the cleanliness of the lens can be guaranteed to a large extent in the adjusting process.

Description

Technical Field

[0001] The utility model relates to the technical field of logging equipment, in particular to a continuous spectrum gas logging device. Background Art

[0002] Logging is an important means to discover and judge oil and gas resources. During the drilling process, through gas logging technology, the alkane gas components in the formation fluid encountered during drilling can be measured and analyzed to obtain the content changes of alkane components such as methane, ethane, propane, butane, and pentane, so as to determine the oil and gas content of the formation encountered. Most of the existing ones are tested by a spectrometer in cooperation with a light source lamp. The light source lamp generates light that passes through a quartz lens, and the spectrometer collects information and sends the signal to an external receiving terminal through a signal processing module.

[0003] However, the distances between the light source lamp, the light source lens, and the sample cell in the existing continuous spectrum gas logging device are not easy to adjust according to actual needs. In addition, during the adjustment process, dust in the external air is easily contaminated on the lens, thus affecting the light path transparency. Therefore, a continuous spectrum gas logging device is needed to solve the above technical problems. Summary of the Utility Model

[0004] The utility model aims at the technical problems existing in the prior art and provides a continuous spectrum gas logging device.

[0005] The technical solution for the utility model to solve the above technical problems is as follows: A continuous spectrum gas logging device includes a housing, inside which a frame body, a first adjustment mechanism, a sample cell, a spectrometer, and a signal processing module are installed. The frame body is slidably connected to the inner top wall of the housing. The first adjustment mechanism is connected to the bottom of the frame body and is used to adjust the distance between the frame body and the sample cell. Inside the frame body, a light source, a light source lens, and a second adjustment mechanism are installed. The light source lens is located between the light source and the sample cell, and the second adjustment mechanism is used to adjust the distance between the light source lens and the light source.

[0006] Preferably, in the above continuous spectrum gas logging device, the first adjustment mechanism includes a second lead screw and a second guide rod. A screw rod bracket is fixed inside the housing. The second lead screw and the second guide rod are both installed on the screw rod bracket. A second hand wheel is installed at the end of the second lead screw, and a screw rod sleeve is sleeved outside the second lead screw.

[0007] Preferably, in the above continuous spectrum gas logging device, at least two sliders are fixedly connected to the bottom of the frame body. One of the sliders is fixedly connected to the top of the screw rod sleeve, and the slider is slidably connected to the second guide rod.

[0008] Preferably, in the above continuous spectrum gas logging device, a light source lens mounting bracket is installed inside the frame body, and the light source lens is mounted in the middle of the light source lens mounting bracket.

[0009] Preferably, in the above continuous spectrum gas logging device, the second adjustment mechanism includes a first lead screw and two first guide rods. The light source lens mounting bracket is slidably connected to the two first guide rods. The first lead screw passes through the light source lens mounting bracket, and a first hand crank is installed at the end of the first lead screw.

[0010] Preferably, in the above continuous spectrum gas logging device, an air inlet pipe and an exhaust pipe are connected to the top of the sample cell, and an air pump is connected to the front end of the air inlet pipe.

[0011] Preferably, in the above continuous spectrum gas logging device, air valves are installed on both the air inlet pipe and the exhaust pipe.

[0012] Preferably, in the above continuous spectrum gas logging device, a barometric pressure sensor is installed inside the sample cell.

[0013] Preferably, in the above continuous spectrum gas logging device, a temperature sensor is installed inside the housing.

[0014] The beneficial effects of the present utility model are as follows: The continuous spectrum gas logging device provided by the present utility model sets a frame body and a first adjustment mechanism inside the housing, sets the light source and the light source lens inside the frame body, and sets a second adjustment mechanism inside the frame body, which is convenient for adjusting the distances among the light source lamp, the light source lens, and the sample cell, and can ensure the cleanliness of the lens to a great extent during the adjustment process. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is Figure 1 the partial enlarged view of

[0017] In the drawings, the list of components represented by each reference numeral is as follows:

[0018] 1. Housing, 2. Sample cell, 3. Air inlet pipe, 4. Exhaust pipe, 5. Air valve, 6. Dry filter, 7. Frame body, 8. Barometric pressure sensor, 9. Sample cell lens, 10. First lead screw, 11. Spectrometer, 12. Signal processing module, 13. Temperature sensor, 14. Slide rail, 15. First cover plate, 16. Second cover plate, 17. Light source lens mounting bracket, 18. Light source, 19. Light outlet hole, 20. Second lead screw, 21. Second guide rod, 22. Lead screw sleeve, 23. Slide block, 24. Second hand crank, 25. First hand crank, 26. First guide rod. Specific embodiments

[0019] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0020] As Figure 1 、 Figure 2 shown, a continuous spectrum gas logging device includes a housing 1. Inside the housing 1, a frame 7, a sample cell 2, a spectrometer 11, and a signal processing module 12 are installed. Inside the frame 7, a light source 18, a light source lens mounting bracket 17, two first guide rods 26, and a first lead screw 10 are installed. A light source lens is installed in the middle of the light source lens mounting bracket 17. The light source lens mounting bracket 17 is slidably connected to the two first guide rods 26. The first lead screw 10 passes through the light source lens mounting bracket 17 and the two are threadedly connected. A first hand crank 25 is installed at the end of the first lead screw 10. Rotating the first hand crank 25 can drive the first lead screw 10 to rotate, thereby driving the light source lens mounting bracket 17 and the light source lens to move along the first guide rods 26, and further changing the distance between the light source and the light source lens.

[0021] A slide rail 14 is fixed on the inner top wall of the housing 1. The top of the frame 7 is slidably connected to the slide rail 14. At the bottom of the frame 7, a second lead screw 20 and a second guide rod 21 are provided. The second lead screw 20 and the second guide rod 21 are installed on a lead screw bracket, and the lead screw bracket is fixed to the bottom of the housing 1. A second hand crank 24 is installed at the end of the second lead screw 20. A lead screw sleeve 22 is sleeved outside the second lead screw 20. At least two sliders 23 are fixedly connected to the bottom of the frame 7. One of the sliders 23 is fixedly connected to the top of the lead screw sleeve 22. The slider 23 is slidably connected to the second guide rod 21. Rotating the second hand crank 24 can drive the second lead screw 20 to rotate, thereby driving the lead screw sleeve 22 and the slider 23 on its upper side to move, and further driving the frame 7 and all the sliders 23 at the bottom to move along the second guide rod 21, and further changing the distance between the light source lens and the sample cell.

[0022] During the above adjustment process, since the light source lens and the light source 18 are both located inside the frame 7 and are not exposed to the outside, the cleanliness of the lens can be maintained to a great extent. An optical outlet 19 is provided on one side of the frame 7, and the optical outlet 19 faces the sample cell lens 9 at one end of the sample cell 2. The sample cell lens 9 at the other end of the sample cell 2 faces the light inlet of the spectrometer. Both sample cell lenses 9 are hermetically connected to both ends of the sample cell.

[0023] Light emitted from the light source 18 passes through the light source lens, the light outlet hole 19, and the sample cell 2 and then enters the spectrometer. After being analyzed by the spectrometer, the signal is transmitted to the signal processing module 12. An air inlet pipe 3 and an exhaust pipe 4 are connected to the top of the sample cell 2 for continuously introducing the gas to be measured. The front end of the air inlet pipe 3 is connected to an air pump. Air valves 5 are installed on both the air inlet pipe 3 and the exhaust pipe 4 to control the air intake and exhaust volume, thereby controlling the air pressure value inside the sample cell 2. A pressure sensor 8 is installed inside the sample cell 2 to continuously monitor the internal air pressure value. A drying filter 6 is also installed on the air inlet pipe 3, mainly for filtering water vapor in the intake air. A temperature sensor 13 is installed inside the housing 1 to continuously monitor the internal temperature.

[0024] The housing 1 is provided with a first cover plate 15 and a second cover plate 16, which are respectively arranged at the first handwheel 25 and the second handwheel 24. When it is necessary to adjust each handwheel, the corresponding cover plate is opened for adjustment.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, specific orientation structure and operation. Therefore, it cannot be understood as a limitation to the present invention. In addition, "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" and the like 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 mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] The above has described in detail an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A continuous spectrum gas logging device, characterized in that: It includes a housing (1), inside which a frame (7), a first adjustment mechanism, a sample cell (2), a spectrometer (11), and a signal processing module (12) are installed. The frame (7) is slidably connected to the inner top wall of the housing (1). The first adjustment mechanism is connected to the bottom of the frame (7), and the first adjustment mechanism is used to adjust the distance between the frame (7) and the sample cell (2). Inside the frame (7), a light source (18), a light source lens, and a second adjustment mechanism are installed. The light source lens is located between the light source (18) and the sample cell (2), and the second adjustment mechanism is used to adjust the distance between the light source lens and the light source (18).

2. The continuous-spectrum gas logging device according to claim 1, wherein: The first adjustment mechanism includes a second lead screw (20) and a second guide rod (21). A lead screw bracket is fixed inside the housing (1). The second lead screw (20) and the second guide rod (21) are both installed on the lead screw bracket. A second handwheel (24) is installed at the end of the second lead screw (20), and a lead screw sleeve (22) is sleeved outside the second lead screw (20).

3. The continuous spectrum gas logging device according to claim 2, characterized in that: At least two sliders (23) are fixedly connected to the bottom of the frame (7). One of the sliders (23) is fixedly connected to the top of the lead screw sleeve (22), and the slider (23) is slidably connected to the second guide rod (21).

4. The continuous spectrum gas logging device according to claim 1, characterized in that: Inside the frame (7), a light source lens mounting bracket (17) is installed, and the light source lens is mounted in the middle of the light source lens mounting bracket (17).

5. The continuous spectrum gas logging device according to claim 4, wherein: The second adjustment mechanism includes a first lead screw (10) and two first guide rods (26). The light source lens mounting bracket (17) is slidably connected to the two first guide rods (26). The first lead screw (10) passes through the light source lens mounting bracket (17), and a first handwheel (25) is installed at the end of the first lead screw (10).

6. The continuous spectrum gas logging device according to claim 1, wherein: An intake pipe (3) and an exhaust pipe (4) are connected to the top of the sample cell (2), and an air pump is connected to the front end of the intake pipe (3).

7. The continuous spectrum gas logging device according to claim 6, wherein: Air valves (5) are installed on both the intake pipe (3) and the exhaust pipe (4).

8. The continuous spectrum gas logging device according to claim 1, characterized in that: A pressure sensor (8) is installed inside the sample cell (2).

9. The continuous spectrum gas logging device according to claim 1, characterized in that: A temperature sensor (13) is installed inside the housing (1).

Images