On-line monitoring device for oil content of drilling fluid

Abstract

The utility model relates to an on-line monitoring device for the oil content of drilling fluid. The on-line monitoring device comprises a mounting bracket, and an image acquisition module, a camera cleaning module and a steam removal module which are positioned on the mounting bracket, the mounting bracket comprises two symmetrically arranged mounting plates, supporting rods are mounted at the tops of the two mounting plates, a cross beam is mounted between the two supporting rods, the image acquisition module and the camera cleaning module are mounted on the cross beam, and the steam removal module is mounted on one of the supporting rods; the image acquisition module comprises a first connecting piece, an ultraviolet camera and an ultraviolet light source; the camera cleaning module comprises a second connecting piece, a cleaning pump and a nozzle, the cleaning pump is installed at the bottom of the second connecting piece, and the nozzle is connected with a liquid outlet of the cleaning pump; the vapor removal module includes an industrial fan. The system provided by the utility model has the beneficial effects of reducing operation complexity and time cost, improving monitoring accuracy and real-time performance, and the like.

Description

Technical Field

[0001] The utility model relates to a device for monitoring the oil content of drilling fluid, in particular to an on-line monitoring device for the oil content of drilling fluid, belonging to the technical field of drilling engineering. Background Art

[0002] In oil drilling operations, when the drilling reaches the target layer, the drilling fluid returned to the ground contains some crude oil. Detecting the crude oil content in the drilling fluid is crucial for evaluating the oil-bearing situation of the formation, adjusting drilling parameters, and ensuring drilling safety. The current method is that when the drilling reaches the target layer, an operator uses a single-soldier camera to take pictures of the drilling fluid in the diversion trough, and then transmits the obtained pictures to the logging room. Experienced workers infer the oil-bearing grade of the corresponding formation based on the oil content in the drilling fluid. However, the manual experience-based judgment has a certain lag and poor accuracy, and it cannot be judged when the phenomenon is not obvious. In addition, more accurate detection is generally carried out in the laboratory, which requires sampling and a series of pre-treatments, increasing the complexity and time cost of the operation. Content of the Utility Model

[0003] The utility model mainly aims at the above problems existing in the prior art, and provides an on-line monitoring device for the oil content of drilling fluid. The device can be directly installed on the diversion trough, collect images through an ultraviolet camera, and is equipped with a series of modules to improve the imaging quality.

[0004] The purpose of the utility model is mainly achieved through the following scheme:

[0005] An on-line monitoring device for the oil content of drilling fluid includes a mounting bracket and an image acquisition module, a camera cleaning module, and a steam removal module located on the mounting bracket; the mounting bracket includes two symmetrically arranged mounting plates, the tops of the two mounting plates are both provided with support rods, a beam that can be adjusted up and down is installed between the two support rods, the image acquisition module and the camera cleaning module are both installed on the beam and can be adjusted along the length direction of the beam, and the steam removal module is installed on one of the support rods; the image acquisition module includes a first connector, an ultraviolet camera, and an ultraviolet light source, the first connector is connected to the beam, the ultraviolet camera is installed at the bottom of the first connector, and the ultraviolet light source is installed on one side of the first connector; the camera cleaning module includes a second connector, a cleaning pump, and a nozzle, the second connector is connected to the beam, the cleaning pump is installed at the bottom of the second connector, and the nozzle is connected to the liquid outlet of the cleaning pump; the steam removal module includes an industrial fan.

[0006] Preferably, a connection card slot is opened at the bottom of the mounting plate, and the mounting plate can be installed on the diversion trough through the connection card slot and the first fastening bolt.

[0007] Preferably, the bottom of the support rod is installed on the top of the mounting plate through a triangular fixing bracket, and the upper and lower ends of the triangular fixing bracket are respectively connected to the support rod and the mounting plate through second fastening bolts.

[0008] Preferably, a plurality of first threaded holes are provided on the support rod along its length direction, and the cross beam is fixedly connected to the support rod through a third fastening bolt passing through the first threaded hole, and first fixing screw holes corresponding to the first threaded holes are provided at both ends of the cross beam.

[0009] Preferably, a plurality of second threaded holes are provided on the cross beam along its length direction, the first connecting member is fixedly connected to the cross beam through a fourth fastening bolt passing through the second threaded hole, and the second connecting member is fixedly connected to the cross beam through a fifth fastening bolt passing through the second threaded hole.

[0010] Preferably, the first connecting member adopts a "mouth" - shaped structure, the first connecting member is slidably connected to the cross beam, and a second fixing screw hole corresponding to the second threaded hole is provided at the upper end of the first connecting member.

[0011] Preferably, the second connecting member adopts a "mouth" - shaped structure, the second connecting member is slidably connected to the cross beam, and a third fixing screw hole corresponding to the second threaded hole is provided at the upper end of the second connecting member.

[0012] Therefore, compared with the prior art, the present utility model has the following advantages:

[0013] (1) Through the provided mounting bracket, the present utility model can be directly erected on the diversion trough, without manual sampling, and can directly capture the surface image of the drilling fluid in real - time without any treatment of the drilling fluid, and transmit the image signal to the background, greatly improving the real - time performance of monitoring, and reducing the complexity and time cost of the operation;

[0014] (2) The mounting bracket provided by the present utility model is detachable, convenient for transportation, and has a wide application range. It can be adapted to different diversion troughs, and the positions of each module can be adjusted arbitrarily, which is convenient for adjustment;

[0015] (3) Through the provided camera cleaning module and steam removal module, the present utility model reduces the influence of harsh environments on imaging. Moreover, in the harsh working environment with a large amount of harmful gases and steam, which is harmful to the health of workers, this device can replace manual labor, protect workers from harm, and ensure the stability of long - term work;

[0016] (4) Through the provided ultraviolet camera and ultraviolet light source, the present utility model can enhance the imaging effect, the obtained images are easier to analyze and are basically not affected by ambient light, improving the accuracy of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic structural diagram of the present utility model;

[0018] Figure 2 It is the front view of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of the image acquisition module in the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the camera cleaning module in the present utility model.

[0021] Illustration: 1 - mounting bracket, 2 - image acquisition module, 3 - camera cleaning module, 4 - steam removal module, 5 - mounting plate, 6 - support rod, 7 - cross beam, 8 - first connecting piece, 9 - ultraviolet camera, 10 - ultraviolet light source, 11 - second connecting piece, 12 - cleaning pump, 13 - nozzle, 14 - industrial fan, 15 - connecting card slot, 16 - triangular fixing bracket, 17 - first threaded hole, 18 - first fastening bolt, 19 - second fastening bolt, 20 - third fastening bolt, 21 - second threaded hole, 22 - fourth fastening bolt, 23 - fifth fastening bolt, 24 - U-shaped frame, 25 - ultraviolet lamp. Detailed implementation manners

[0022] The technical solution of the present utility model will be further specifically described below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of the present utility model is not limited to the following embodiments, and any formal modification and / or change made to the present utility model will fall within the protection scope of the present utility model.

[0023] In the present utility model, unless otherwise specified, all parts and percentages are in weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the art. The methods in the following embodiments are conventional methods in the art unless otherwise specified. The components or equipment in the following embodiments are all standard parts or components known to those skilled in the art unless otherwise specified, and their structures and principles can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0024] Embodiment 1:

[0025] As Figure 1 、 2 shown, the present utility model provides a technical solution, an on-line monitoring device for the oil content of drilling fluid, which is composed of a mounting bracket 1 and an image acquisition module 2, a camera cleaning module 3 and a steam removal module 4 located on the mounting bracket 1.

[0026] The above-mentioned mounting bracket 1 includes two symmetrically arranged mounting plates 5. Support rods 6 are installed on the tops of the two mounting plates 5. A beam 7 that can be adjusted up and down is installed between the two support rods 6. The image acquisition module 2 and the camera cleaning module 3 are both installed on the beam 7 and can be adjusted along the length direction of the beam 7. The steam removal module 4 is installed on one of the support rods 6. For diversion grooves of different widths, only the beam 7 of different sizes needs to be replaced.

[0027] The above-mentioned image acquisition module 2 is composed of a first connector 8, an ultraviolet camera 9, and an ultraviolet light source 10. The first connector 8 is connected to the beam 7. The ultraviolet camera 9 is installed at the bottom of the first connector 8, and the ultraviolet light source 10 is installed on one side of the first connector 8.

[0028] The above-mentioned camera cleaning module 3 is composed of a second connector 11, a cleaning pump 12, and a nozzle 13. The second connector 11 is connected to the beam 7. The cleaning pump 12 is installed at the bottom of the second connector 11, and the nozzle 13 is connected to the liquid outlet of the cleaning pump 12.

[0029] The above-mentioned steam removal module 4 uses a high-power industrial fan 14 and is arranged facing the ultraviolet camera 9; since the temperature of the drilling fluid is relatively high, steam may affect the imaging quality. A high-power industrial fan is selected to blow away the steam brought by the high-temperature drilling fluid. The industrial fan is selected to ensure long-term stable operation in a harsh environment.

[0030] Embodiment 2:

[0031] As Figure 1 、 2 shown, the present utility model provides another technical solution. A device for on-line monitoring of the oil content of drilling fluid, different from Embodiment 1, is that a connection card slot 15 is opened at the bottom of the mounting plate 5. The mounting plate 5 can be installed on the diversion groove through the connection card slot 15 and the first fastening bolt 18. The connection card slot 15 at the bottom of the mounting plate 5 can be directly installed on the diversion groove and fastened by eight first fastening bolts 18 on both sides.

[0032] Specifically, the bottom of the support rod 6 is installed on the top of the mounting plate 5 through a triangular fixing frame 16, and the upper and lower ends of the triangular fixing frame 16 are detachably and fixedly connected to the support rod 6 and the mounting plate 5 respectively through second fastening bolts 19. The setting of the triangular fixing frame 16 can ensure the stability of the support rod 6.

[0033] Specifically, a plurality of first threaded holes 17 are provided on the support rod 6 along its length direction, which is convenient for adjusting the erection height of the beam 7. The beam 7 is fixedly connected to the support rod 6 through a third fastening bolt 20 passing through the first threaded hole 17. First fixing screw holes (not shown in the figure) corresponding to the first threaded holes 17 are provided at both ends of the beam 7.

[0034] Specifically, a plurality of second threaded holes 21 are provided along the length direction of the cross beam 7. The first connecting member 8 is fixedly connected to the cross beam 7 through a fourth fastening bolt 22 passing through the second threaded hole 21, and the second connecting member 11 is fixedly connected to the cross beam 7 through a fifth fastening bolt 23 passing through the second threaded hole 21, facilitating the adjustment of the positions of the image acquisition module and the camera cleaning module on the cross beam 7.

[0035] Embodiment 3:

[0036] As Figure 1 、 2 、shown in Fig. 3, the present utility model provides another technical solution, an on-line monitoring device for the oil content of drilling fluid. Different from Embodiment 1, the first connecting member 8 adopts a "mouth" - shaped structure. The first connecting member 8 is slidably connected to the cross beam 7, and a second fixing screw hole (not shown in the figure) corresponding to the second threaded hole 21 is provided at the upper end of the first connecting member 8.

[0037] In this embodiment, the ultraviolet camera 9 uses an ultraviolet camera with a three - proof housing. The images obtained by using the ultraviolet camera 9 are easier to process compared with ordinary industrial cameras. Ultraviolet images usually have higher contrast, making details that are difficult to distinguish under visible light become clear under ultraviolet light, which helps to more effectively identify and separate the target object from the background during image processing. At the same time, since the ultraviolet camera 9 operates within a specific spectral range, it can reduce the interference of factors such as ambient light and color changes, improving the accuracy of image processing. The camera lens is coated to prevent dirt and steam, and a pan - tilt head is integrated inside the camera to eliminate vibration.

[0038] The above - mentioned ultraviolet light source 10 is composed of a U - shaped frame 24 and an ultraviolet lamp 25. The U - shaped frame 24 is installed on one side of the first connecting member 8. The two sides of the ultraviolet lamp 25 are rotatably connected to the U - shaped frame 24, and the fixation between the U - shaped frame 24 and the ultraviolet lamp 25 is achieved through bolts, facilitating the adjustment of different irradiation angles of the ultraviolet lamp 25 and improving the imaging effect.

[0039] Embodiment 4:

[0040] As Figure 1 、 2 、shown in Fig. 4, the present utility model provides another technical solution, an on - line monitoring device for the oil content of drilling fluid. Different from Embodiment 1, the second connecting member 11 adopts a "mouth" - shaped structure. The second connecting member 11 is slidably connected to the cross beam 7, and a third fixing screw hole (not shown in the figure) corresponding to the second threaded hole 21 is provided at the upper end of the second connecting member 11.

[0041] Due to the relatively harsh environment at the operation site, even if the ultraviolet camera lens is coated, it is easy to stick with splashed mud and needs to be cleaned regularly. Usually, the nozzle 13 is far away from the camera to avoid affecting the vision of the ultraviolet camera. When cleaning the dirt on the ultraviolet camera lens, the position of the second connecting piece 11 is manually moved so that the nozzle 13 extends below the camera lens, and under the action of the high-pressure cleaning pump 12, cleaning liquid is sprayed onto the camera lens. After spraying, the second connecting piece 11 is manually returned to its original position. A push rod motor can also be installed at the bottom of the second connecting piece 11, and the cleaning pump 12 is installed at the telescopic end of the push rod motor, and the position change of the cleaning pump 12 and the nozzle 13 is realized through the push rod motor. Since a special lens cleaning liquid is used for lens coating, the cleaning liquid will not leave traces on the lens surface and affect the imaging quality. The cleaning liquid can be contained in a liquid storage bottle and installed on one side of the second connecting piece 11 or one side of the cleaning pump 12, and the liquid inlet of the cleaning pump 12 extends into the liquid storage bottle.

[0042] An on-line monitoring device for the oil content of drilling fluid provided by the present utility model should be equipped with a computer in the background. There is software for analyzing images in the computer, and the software process is as follows:

[0043] 1. Collect images of drilling fluid containing crude oil through an ultraviolet camera to establish a database. Preprocess the images to generate a dataset that can be used for machine learning. Sufficient images include a large number of images of drilling fluid with different crude oil contents, and when collecting images, the oil content of the drilling fluid corresponding to the images is recorded in detail to facilitate subsequent algorithm training and verification. When collecting a large number of images, a database of oil-bearing layer grades corresponding to different oil contents of drilling fluid should also be established. When the approximate oil content of the drilling fluid is detected, the oil-bearing grade of the formation can be inferred. Preprocess the data, including cleaning, normalizing, and enhancing the data to improve the generalization ability of the model;

[0044] 2. Establish an image area recognition algorithm to preliminarily analyze the images of oil-containing drilling fluid. Collect the characteristics of oil flowers and oil bubbles on the surface of the drilling fluid, determine the accuracy, processing speed, and robustness of the algorithm, select appropriate image preprocessing techniques, design object detection and segmentation methods, determine the feature extraction strategy, formulate specific steps for area calculation, and finally use programming languages and image processing libraries to convert the design into executable code;

[0045] 3. Establish a machine vision learning model. Define the performance indicators of the model, determine the type of the model, select appropriate hardware, and build a suitable software environment, including selecting a suitable operating system, installing necessary software and libraries, developing scripts for operations such as image resizing, cropping, normalizing, and enhancing, implementing an efficient data loading and batch processing mechanism, selecting a suitable neural network architecture, and designing the network structure, including the number of layers, the number of neurons, and activation functions, etc.;

[0046] 4. Train and validate the algorithm using the dataset and continuously optimize the algorithm. Repeat the processes of model training, evaluation, parameter tuning, and validation to continuously optimize the model. As the understanding of the data and the problem deepens, continuously adjust the model design and parameters.

[0047] 5. The ultraviolet camera collects images and transmits them to the computer in the background.

[0048] 6. Analyze the crude oil on the surface of the drilling fluid through the algorithm and the model, infer the true oil content, and generate a curve of the oil content change.

[0049] 7. Compare the oil content of the drilling fluid with the database to infer the oil content level of the formation being drilled at this time.

[0050] The software process provided above only provides an analysis method, but is not limited to the above method. Those skilled in the art can obtain it through common general knowledge, conventional means, or simple derivation in this field. Moreover, the computer, software, and its analysis method in the background are not within the protection scope of this application and will not be elaborated here. In addition, the computer is electrically connected to the cleaning pump, ultraviolet camera, ultraviolet lamp, and industrial fan. The computer controls the operation of the cleaning pump, ultraviolet camera, ultraviolet lamp, and industrial fan. The specific model specifications of the cleaning pump, ultraviolet camera, ultraviolet lamp, and industrial fan need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0051] An on-line monitoring device for the oil content of drilling fluid provided by the present utility model can be directly erected on the diversion trough through the provided mounting bracket, without manual sampling, and can directly capture the image on the surface of the drilling fluid in real time without any treatment of the drilling fluid, and transmit the image signal to the background, greatly improving the real-time performance of monitoring and reducing the complexity and time cost of the operation. The provided mounting bracket is detachable, convenient for transportation, and has a wide application range, can be adapted to different diversion troughs, and the positions of each module can be adjusted arbitrarily, which is convenient for adjustment. By setting the camera cleaning module and the steam removal module, the influence of the harsh environment on imaging is reduced. Moreover, the working environment at the operation site is harsh, with a large amount of harmful gases and steam, which harms the health of workers. This device can replace manual labor, protect workers from harm, and ensure the stability of long-term work. By setting the ultraviolet camera and the ultraviolet light source, the imaging effect can be enhanced, the obtained images are easier to analyze and are basically not affected by the ambient light, improving the accuracy of monitoring.

[0052] It should be understood that this embodiment is only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. An online monitoring device for oil content in drilling fluid, characterized in that: It comprises a mounting bracket (1) and an image acquisition module (2), a camera cleaning module (3) and a steam removal module (4) located on the mounting bracket (1); The mounting bracket (1) comprises two symmetrically arranged mounting plates (5), the tops of the two mounting plates (5) are both mounted with support rods (6), a vertically adjustable crossbeam (7) is mounted between the two support rods (6), the image acquisition module (2) and the camera cleaning module (3) are both mounted on the crossbeam (7) and can be adjusted along the length direction of the crossbeam (7), and the steam removal module (4) is mounted on one of the support rods (6); The image acquisition module (2) comprises a first connecting member (8), an ultraviolet camera (9) and an ultraviolet light source (10), wherein the first connecting member (8) is connected to the crossbeam (7), the ultraviolet camera (9) is mounted on the bottom of the first connecting member (8), and the ultraviolet light source (10) is mounted on one side of the first connecting member (8); The camera cleaning module (3) comprises a second connecting member (11), a cleaning pump (12) and a nozzle (13); the second connecting member (11) is connected to the crossbeam (7); the cleaning pump (12) is installed at the bottom of the second connecting member (11); and the nozzle (13) is connected to the liquid outlet of the cleaning pump (12); The steam removal module (4) comprises an industrial fan (14).

2. The on-line monitoring device for oil content in drilling fluid according to claim 1, characterized in that: A connecting slot (15) is provided at the bottom of the mounting plate (5), and the mounting plate (5) can be mounted on the guide groove via the connecting slot (15) and the first fastening bolt (18).

3. The on-line monitoring device for oil content in drilling fluid according to claim 2, characterized in that: The bottom of the support rod (6) is mounted on the top of the mounting plate (5) via a triangular fixing frame (16), and the upper and lower ends of the triangular fixing frame (16) are respectively connected to the support rod (6) and the mounting plate (5) via second fastening bolts (19).

4. The on-line monitoring device for oil content in drilling fluid according to claim 3, characterized in that: The support rod (6) is provided with a plurality of first threaded holes (17) along its length direction, and the cross beam (7) is fixedly connected to the support rod (6) by means of third fastening bolts (20) passing through the first threaded holes (17), and first fixing screw holes corresponding to the first threaded holes (17) are provided at both ends of the cross beam (7).

5. The on-line monitoring device for oil content in drilling fluid according to claim 4, characterized in that: The crossbeam (7) is provided with a plurality of second threaded holes (21) along its length direction; the first connecting member (8) is fixedly connected to the crossbeam (7) via a fourth fastening bolt (22) passing through the second threaded hole (21); and the second connecting member (11) is fixedly connected to the crossbeam (7) via a fifth fastening bolt (23) passing through the second threaded hole (21).

6. The on-line monitoring device for oil content in drilling fluid according to claim 1, characterized in that: The first connecting member (8) has a "mouth"-shaped structure, the first connecting member (8) is slidably connected to the crossbeam (7), and a second fixing screw hole corresponding to the second screw hole (21) is provided at the upper end of the first connecting member (8).

7. The on-line monitoring device for oil content in drilling fluid according to claim 1, characterized in that: The second connecting member (11) adopts a "mouth"-shaped structure, the second connecting member (11) is slidably connected to the crossbeam (7), and the upper end of the second connecting member (11) is provided with a third fixing screw hole corresponding to the second screw hole (21).

Images