Crude oil water content detection system

Abstract

The invention belongs to the technical field of crude oil water content detection, and particularly provides a crude oil water content detection system. The crude oil water content detection system comprises an upper barrel position, an information identification position, a cover opening position, a cover placing position, a heating position, a detection position, a cleaning position, a lower barrel position and a transfer device for transferring oil barrels among different stations. The upper barrel position is used for storing an oil barrel to be detected, the lower barrel position is used for storing the detected oil barrel, and each station is provided with related matching devices. When the water content of crude oil is detected, the detection system can automatically complete the operation of detecting and cleaning the oil drum, and the labor intensity of workers is relieved.

Description

Technical Field

[0001] This invention belongs to the field of crude oil water content detection technology, and in particular relates to a crude oil water content detection system. Background Technology

[0002] In oilfield exploration and crude oil production, it is necessary to measure the water cut of crude oil in order to determine the crude oil production of each well and formulate well development strategies. Currently, there are two methods for measuring crude oil water cut: online detection and laboratory testing. Online detection refers to installing an online detection analyzer on the oil pipeline to directly measure the water cut of the crude oil inside the pipeline. Laboratory testing involves taking a certain amount of oil samples from different wells and then testing the water cut in a laboratory.

[0003] Of the two methods mentioned above, laboratory testing yields more accurate results. However, current laboratory testing procedures are generally manual, including tasks such as moving sample containers, recording sample container information, manual testing, and manual cleaning of the tested sample containers, which are labor-intensive. Summary of the Invention

[0004] The purpose of this invention is to provide a crude oil water content detection system to solve the technical problem of high manual labor intensity in laboratory testing of crude oil water content in the prior art.

[0005] To achieve the above objectives, the technical solution of the crude oil water content detection system provided by this invention is as follows: A crude oil water content detection system includes an upper barrel position for storing oil drums to be tested, an information identification position, a lid opening position, a lid placement position for placing the lid, a heating position, a detection position, a cleaning position, a lower barrel position for storing the tested oil drums, and a transfer device for transporting the oil drums between the various positions. The information identification position is equipped with an identification device for identifying oil drum information. The lid opening position is equipped with a lid opening device for opening the lid. The heating position is equipped with a heating device for heating the crude oil inside the oil drum. The detection position is equipped with a detection probe that can reciprocate to insert and remove the oil drum. The cleaning position is equipped with an oil collection tank and a cleaning water nozzle. The transfer device between the cleaning position and the detection position is a barrel-turning robot. The barrel-turning robot has a multi-degree-of-freedom robotic arm for turning the oil drum over to pour out the crude oil inside and aligning the drum opening with the cleaning water nozzle.

[0006] As a further improvement, the transfer device for the oil drum to flow between the information identification position, the lid opening position, the heating position, and the detection position is a ring conveyor. The lid placement position is located on the transverse side of the ring conveyor. The ring conveyor, from upstream to downstream in the conveying direction, forms the information identification position corresponding to the position of the information identification device, the lid opening position corresponding to the position of the lid opening mechanism, the heating position corresponding to the position of the heating device, and the detection position corresponding to the position of the detection device.

[0007] As a further improvement, the distance between any two adjacent information recognition positions, lid opening positions, heating positions, and detection positions is equal.

[0008] As a further improvement, the circular conveyor has a front extension section located upstream of the information identification position and a rear extension section located downstream of the detection position in the conveying direction. The front extension section is provided with a front waiting position for placing oil drums sent from the upper drum position. The distance between the front waiting position and the information identification position is equal to the distance between any two adjacent positions. The rear extension section is provided with a rear waiting position for temporarily placing oil drums that have been detected by the detection position and are waiting to be picked up by the drum-flipping robot.

[0009] As a further improvement, a drying station is also provided between the cleaning station and the lowering station in the upstream and downstream direction of the oil drum flow. The drying station is equipped with a drying device for drying the oil drum, and the range of motion of the mechanical arm of the drum-turning robot is sufficient to transfer the oil drum from the cleaning station to the drying station.

[0010] As a further improvement, a lid-closing position is provided between the drying position and the lowering position in the upstream and downstream direction of the oil drum flow. The range of motion of the mechanical arm of the drum-turning robot is sufficient to send the oil drum dried in the drying position to the lid-closing position. The detection system also includes a multi-functional robot with a multi-degree-of-freedom mechanical arm. The lid-opening device is composed of an adsorption device installed at the end of the mechanical arm of the multi-functional robot, which can adsorb and lower the lid. The range of motion of the mechanical arm of the multi-functional robot is sufficient to transfer the adsorbed lid from the lid-opening position to the lid-placing position, and from the lid-placing position to the lid-closing position to fasten it to the oil drum located at the lid-closing position.

[0011] As a further improvement, the adsorption device is an electromagnetic chuck.

[0012] As a further improvement, the heating position is also equipped with a flue gas recovery device to collect the flue gas generated during the heating process.

[0013] As a further improvement, the heating device includes an electric heating rod that can reciprocate to insert and remove the oil drum.

[0014] As a further improvement, the identification device includes an NFC scanner that can reciprocate to engage and disengage with the NFC module on the lid.

[0015] This invention is a pioneering invention with the following beneficial effects: Based on the concept of an automated production line, this invention provides a crude oil water content detection system. According to this system, when detecting the water content of crude oil, the oil drum to be tested, located at the upper drum position, can be transferred to the information identification position by a transfer device. The information identification position can identify the oil well information corresponding to the crude oil inside each drum. Then, following the normal detection sequence, the crude oil inside the drum is heated and tested. After the test is completed, a drum-turning robot can send the drum from the testing position to the cleaning position and pour out the crude oil, and adjust the drum to a position where it can be rinsed by the cleaning water nozzles. The cleaned drum can finally be sent to the lower drum position for storage. Analysis shows that, using the crude oil water content detection system of this invention, each major process is completed by the corresponding supporting devices configured at each position, thereby reducing the labor intensity of workers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall detection process of the crude oil water content detection system embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the relevant devices installed in the middle cleaning position.

[0017] Explanation of reference numerals in the attached figures: 1. Fence; 2. Front waiting position; 3. Circular conveyor; 4. Information recognition position; 5. Lid placement position; 6. Lid opening position; 7. Heating position; 8. Detection position; 9. Rear waiting position; 10. Tumbler robot; 11. Washing position; 12. Drying position; 13. Tumbler placement position; 14. Lid closing position; 15. Tumbler robot; 16. Multifunctional robot; 17. Tumbler loading robot; 18. Tumbler loading position; 19. Oil drum; 20. Bracket; 101. Fence gate; 111. Oil collection tank; 112. Cleaning water nozzle; 113. Washing machine. Detailed Implementation

[0018] To address the technical problem of high labor intensity for personnel testing crude oil water content in laboratories, the basic technical concept of this invention is to provide a crude oil water content testing system based on an automated production line. This system includes at least the following steps: loading (loading into barrels), barrel information identification, automatic barrel opening, heating crude oil, testing crude oil, cleaning barrels, and unloading (unloading from barrels). Each step is equipped with relevant auxiliary devices as needed. When testing the water content of crude oil, the system can automatically complete the testing and barrel cleaning operations, reducing the intensity of manual labor. The invention will be further described in detail below with reference to embodiments.

[0019] Specific embodiments of the crude oil water content detection system provided by this invention: The crude oil water content detection system provided in this embodiment is as follows: Figure 1As shown, the crude oil water content detection system involves the process of oil drums moving between different locations. Following the upstream and downstream flow sequence of the oil drums, the system includes an upper drum position 18, an information identification position 4, a cap opening position 6, a cap placing position 5, a heating position 7, a detection position 8, a cleaning position 11, and a lower drum position 13. The upper drum position 18 is used to store the oil drum to be tested, and the lower drum position 13 is used to store the oil drum after testing. Of course, to ensure the normal operation of the detection work, the crude oil water content detection system also includes a transfer device for transferring the oil drums between different positions.

[0020] Specifically, the upper barrel position 18 is used to store the oil barrels to be inspected. Workers can operate a forklift or use an AGV (Automated Guided Vehicle) to deliver the oil barrels to the upper barrel position 18. A transfer device between the upper barrel position 18 and the information identification position 4 can transfer the oil barrels to be inspected from the upper barrel position 18 to the information identification position 4. In a preferred embodiment, the transfer device between the upper barrel position 18 and the information identification position 4 can be a barrel-loading robot 17. The barrel-loading robot 17 is an industrial robot with a multi-degree-of-freedom robotic arm. Specifically, it can directly adopt existing multi-degree-of-freedom industrial robots; the structure of the barrel-loading robot 17 will not be described here. The end of the robotic arm of the barrel-loading robot 17 is equipped with a gripper capable of holding the oil barrel.

[0021] Furthermore, such as Figure 1 and Figure 2 As shown, in order to inspect more oil drums at once, in a preferred embodiment, a bracket 20 can be set up to place nine oil drums 19 on the bracket 20 at a time. The oil drums 19 must be positioned such that they do not slide out of the bracket 20 when the bracket 20 is tilted at a certain angle. Specifically, clamps or similar devices can be installed in the bracket 20. In this case, the gripper of the drum loading robot 17 holds the bracket 20.

[0022] In other implementations, it is also possible to use a crane to transfer the oil drum between the upper drum position 18 and the information identification position 4.

[0023] Information identification position 4 is equipped with an identification device for identifying information on the oil drum. During testing, crude oil samples from different oil wells are stored in different oil drums, and an identification code marking the corresponding oil well information is affixed to each drum. Specifically, the drum lid is not easily contaminated or obstructed, and the identification code can be placed on the lid. Preferably, an NFC module can be integrated into the lid, and the corresponding oil well information can be stored in the NFC module. Accordingly, the identification device should include an NFC scanner capable of reading the NFC module. Specifically, the NFC scanner also needs to be able to reciprocate. When the oil drum is delivered to information identification position 4, the scanner moves to a position where it is in contact with the NFC module, thereby enabling it to read the information from the NFC module. After the oil drum information is identified, the scanner moves to a position where it is separated from the NFC module to prevent the NFC scanner from interfering with the normal subsequent transport of the oil drum. The reciprocating motion referred to here can be a straight up-and-down reciprocating motion, a vertical swinging motion, or even a horizontal swinging motion. It can be implemented by configuring corresponding cylinders, electric push rods, or other structures, which will not be described here. NFC communication technology does not rely on surface image features and can accurately read information even when there are crude oil droplets on the surface of the bucket lid.

[0024] Of course, in other implementations, it is also possible to use methods such as attaching QR codes or barcodes to the surface of the barrel lid and equipping the identification device with a barcode scanner. However, care should be taken to ensure that the QR codes or barcodes are not contaminated by crude oil.

[0025] The lid opening position 6 is equipped with a lid opening device for opening the barrel lid. The oil barrel sent to the lid opening position 6 via the information identification position 4 can have its lid opened by the lid opening device, thus enabling subsequent inspection. The lid placement position 5 is used to store the barrel lid after it has been opened by the lid opening device.

[0026] Heating position 7 is equipped with a heating device for heating crude oil, which can be heated to 50-60°C as needed. Specifically, as a low-cost and high-efficiency heating method, the heating device is equipped with a reciprocating electric heating rod that can move to insert into the oil drum to heat the crude oil and then be pulled out of the oil drum after heating is complete. Of course, other embodiments may also use water bath heating, infrared heating, etc.

[0027] In a further preferred embodiment, considering environmental protection requirements, the heating position 7 is also provided with a flue gas collection device, which is used to collect the flue gas generated during the heating process.

[0028] Detection position 8 is equipped with a detection probe. Similarly, the detection probe also needs to reciprocate, preferably in a straight up-and-down motion. The downward movement of the detection probe allows it to be inserted into the oil drum to detect the water content of the heated crude oil. After the test is completed, the detection probe moves upward and is pulled out of the oil drum. The specific detection probe is a commonly used laboratory probe in existing technology. Of course, to upload the test results in real time, the detection system can also be configured with a host computer that communicates with the detection probe. The communication protocol can adopt several commonly used data transmission protocols in existing technology.

[0029] like Figure 2 As shown, the cleaning station 11 is equipped with an oil collection tank 111, where the crude oil in the oil drums measured by the detection station 8 can be directly poured into the oil collection tank 111. Simultaneously, the cleaning station 11 is also equipped with a cleaning water nozzle 112. When the oil drums need cleaning, the cleaning water nozzle 112 can be connected to a cleaning machine 113. The cleaning machine 113 pressurizes clean water and sprays it onto the inner wall of the oil drum to rinse away any residual crude oil. The transfer device between the detection station 8 and the cleaning station 11 is a drum-tilting robot 10. The drum-tilting robot 10 is also an industrial robot with a multi-degree-of-freedom robotic arm. When the oil drums need cleaning, the drum-tilting robot 10 can grab the oil drum or the support 20 to tilt the oil drum and pour out the crude oil inside, while simultaneously adjusting the oil drum so that its opening faces the cleaning water nozzle 112.

[0030] As a further preferred implementation, such as Figure 1 As shown, the conveying device that transfers oil drums between information identification position 4, lid opening position 6, heating position 7, and detection position 8 is a circular conveyor 3. Specifically, the circular conveyor 3 can be a belt conveyor or a chain conveyor as used in existing technologies. In other words, information identification position 4, lid opening position 6, heating position 7, and detection position 8 are arranged in the upstream and downstream directions of the conveying direction of the circular conveyor 3. From upstream to downstream, information identification position 4 corresponds to the position of the information identification device, lid opening position 6 corresponds to the position of the lid opening mechanism, heating position 7 corresponds to the position of the heating device, and detection position 8 corresponds to the position of the detection device. For ease of detection, the information identification device, heating device, and detection device can be directly installed above the circular conveyor 3. The lid placement position 5 is located on the transverse side of the circular conveyor 3 (the upstream and downstream conveying direction is longitudinal). The circular conveyor 3 can realize continuous conveying in an assembly line manner, eliminating the need for frequent lifting and grabbing of oil drums, and improving the flow efficiency of oil drums between the above workstations.

[0031] Based on the above, in a further optimized implementation, the distances between information identification position 4 and lid opening position 6, between lid opening position 6 and heating position 7, and between heating position 7 and detection position 8 are all equal. Simply put, the distance between any two adjacent information identification position 4, lid opening position 6, heating position 7, and detection position 8 is equal. This enables continuous detection of the oil drums, allowing multiple stations to operate simultaneously. Each step of the circular conveyor 3 covers one of the aforementioned distances, ensuring that the oil drums flow precisely between different stations. This provides higher efficiency when the detection volume is large.

[0032] As a further optimized implementation, the circular conveyor 3 has a relatively long conveying length, with a front extension upstream of the information identification position 4 and a rear extension downstream of the detection position 8 in the conveying direction. The front extension has a front waiting position 2, which is used to place oil drums sent from the upper drum position 18, and the distance between the front waiting position 2 and the information identification position 4 is equal to the distance between the information identification position 4 and the lid opening position 6. In this way, the oil drums grabbed by the upper drum robot 17 can be placed in the front waiting position 2 to wait, and the circular conveyor 3 can deliver the oil drums to the information identification position 4 in one step. The rear extension has a rear waiting position 9, which is used to temporarily hold oil drums that have been detected by the detection position 8 and are waiting to be grabbed by the drum-turning robot 10. In this preferred embodiment, combining the detection process with feeding drums to the circular conveyor 3 and taking drums out of the circular conveyor 3 for cleaning can further improve the turnover efficiency of oil drums.

[0033] In another preferred embodiment, the crude oil water content detection system is further equipped with a drying station 12. The drying station 12 is equipped with a drying device for drying oil drums. The drying station 12 is located between the cleaning station 11 and the lower drum station 13. Oil drums cleaned at the cleaning station 11 can be transported to the drying station 12 by the drum-turning robot 10. The drying device at the drying station 12 can dry the water remaining on the inner wall of the oil drum. At this time, the range of motion of the end effector of the drum-turning robot 10 needs to be sufficient to transport the oil drum from the cleaning station 11 to the drying station 12. The drying device can be a conventional hot air drying device, and its specific structure is not limited. In this embodiment, the crude oil water content detection system integrates the drying station 12, further expanding the functionality of the detection system and ensuring that the oil drums transferred to the lower drum station 13 are dry, facilitating direct use for the next detection.

[0034] Based on the above, in a further optimized embodiment, a lid-closing position 14 is also provided between the drying position 12 and the lower barrel position 13. After the oil barrel is sent to the lid-closing position 14, it can wait for the barrel lid to be sent. After the barrel lid is put on, it can directly form a complete oil barrel. Specifically, the activity range of the barrel-turning robot 10 is sufficient to send the oil barrel dried in the drying position 12 to the lid-closing position 14. In order to send the barrel lid from the lid-placement position 5 to the lid-closing position 14, in this embodiment, the detection system also includes a multi-functional robot 16. Similarly, the multi-functional robot 16 has a multi-degree-of-freedom robotic arm, and the end of the multi-degree-of-freedom robotic arm is provided with an adsorption device, which can adsorb the barrel lid. In fact, in this embodiment, the lid-opening device provided at the lid-opening position 6 is composed of the adsorption device at the end of the robotic arm of the multi-functional robot 16. Preferably, the adsorption device is an electromagnetic adsorption device. Compared with a vacuum adsorption device equipped with an air nozzle, the electromagnetic adsorption device is more reliable and can adsorb the barrel lid even if there is oil stains at the lid position. Based on the configuration of the multi-functional robot 16, the movement of the barrel lid at each position is completed by the multi-functional robot 16. The range of motion of its robotic arm is sufficient to transfer the adsorbed barrel lid from the opening position 6 to the placing position 5, and then from the placing position 5 to the closing position 14 to fasten it onto the oil barrel located at the closing position 14. Of course, to facilitate the transfer of the barrel lid from the placing position 5 to the closing position 14, such as... Figure 1 As shown, the washing station 11, drying station 12, and lid closing station 14 are located on the transverse side of the circular conveyor 3, and the flow direction is opposite to the conveying direction of the circular conveyor 3. This allows the lid closing station 14 to be close to the lid placement station 5, which facilitates the operation of the multi-functional robot 16.

[0035] The oil drum with its lid already closed at the lid-closing position 14 can be transported to the lower drum position 13 for storage. It will then be transported away by a forklift or AGV for future use. Similarly, the transfer device that transports the oil drum from the lid-closing position 14 to the lower drum position 13 can also be a multi-degree-of-freedom robot, namely the lower drum robot 15.

[0036] It should be noted that in some other embodiments, the drying station 12 may not be configured. After cleaning, the oil drum is sent to the lower drum station 13, and the oil drum in the lower drum station 13 is sent to other workshops for drying. The lid of the lid station 5 is sent away separately.

[0037] In addition, when the crude oil water content detection system is set up in the laboratory, an independent detection area can be divided and maintained by a fence 1. The fence 1 needs to leave a passage for sending oil drums inward and pulling oil drums outward, and a fence gate 101 can be set at the entrance of the passage.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crude oil water content detection system, characterized in that, It includes an upper barrel position for storing oil drums to be tested, an information identification position, a lid opening position, a lid placement position for placing the lid, a heating position, a detection position, a cleaning position, a lower barrel position for storing oil drums after testing, and a transfer device for transporting oil drums between the various workstations. The information identification position is equipped with an identification device for identifying oil drum information. The lid opening position is equipped with a lid opening device for opening the lid. The heating position is equipped with a heating device for heating the crude oil inside the oil drum. The detection position is equipped with a detection probe that can reciprocate to insert and remove the oil drum. The cleaning position is equipped with an oil collection tank and a cleaning water nozzle. The transfer device between the cleaning position and the detection position is a barrel-turning robot. The barrel-turning robot has a multi-degree-of-freedom robotic arm for turning the oil drum over to pour out the crude oil inside and making the drum opening face the cleaning water nozzle.

2. The crude oil water content detection system according to claim 1, characterized in that, The transfer device for transferring oil drums between the information identification position, the lid opening position, the heating position, and the detection position is a circular conveyor. The lid placement position is located on the transverse side of the circular conveyor. The circular conveyor, from upstream to downstream in the conveying direction, forms the information identification position corresponding to the position of the information identification device, the lid opening position corresponding to the position of the lid opening mechanism, the heating position corresponding to the position of the heating device, and the detection position corresponding to the position of the detection device.

3. The crude oil water content detection system according to claim 2, characterized in that, The distance between any two adjacent information identification positions, lid opening positions, heating positions, and detection positions is equal.

4. The crude oil water content detection system according to claim 3, characterized in that, The circular conveyor has a front extension section located upstream of the information identification position and a rear extension section located downstream of the detection position in the conveying direction. The front extension section is provided with a front waiting position for placing oil drums sent from the upper drum position. The distance between the front waiting position and the information identification position is equal to the distance between any two adjacent positions. The rear extension section is provided with a rear waiting position for temporarily placing oil drums that have been detected by the detection position and are waiting to be picked up by the drum-flipping robot.

5. The crude oil water content detection system according to any one of claims 1-4, characterized in that, In the upstream and downstream direction of the oil drum flow, there is also a drying position between the cleaning position and the lowering position. The drying position is equipped with a drying device for drying the oil drum. The range of motion of the mechanical arm of the drum-turning robot is sufficient to transfer the oil drum from the cleaning position to the drying position.

6. The crude oil water content detection system according to claim 5, characterized in that, In the upstream and downstream direction of the oil drum flow, there is also a lid-closing position between the drying position and the lower drum position. The range of motion of the mechanical arm of the drum-turning robot is sufficient to send the oil drum dried in the drying position to the lid-closing position. The detection system also includes a multi-functional robot with a multi-degree-of-freedom mechanical arm. The lid-opening device is composed of an adsorption device installed at the end of the mechanical arm of the multi-functional robot, which can adsorb and lower the lid. The range of motion of the mechanical arm of the multi-functional robot is sufficient to transfer the adsorbed lid from the lid-opening position to the lid-placing position, and from the lid-placing position to the lid-closing position to fasten it to the oil drum located in the lid-closing position.

7. The crude oil water content detection system according to claim 6, characterized in that, The adsorption device is an electromagnetic chuck.

8. The crude oil water content detection system according to any one of claims 1-4, characterized in that, The heating unit is also equipped with a flue gas recovery device to collect the flue gas generated during the heating process.

9. The crude oil water content detection system according to any one of claims 1-4, characterized in that, The heating device includes an electric heating rod that can reciprocate to insert and remove the oil drum.

10. The crude oil water content detection system according to any one of claims 1-4, characterized in that, The identification device includes an NFC scanner that can reciprocate to engage and disengage with the NFC module on the lid.

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