One-key pilot well test control method and system for oil well

Abstract

The invention relates to a one-key pilot well test control method and system for an oil well. The method comprises the following steps that a test instruction is received; exporting a logged well and importing a to-be-logged well according to the test instruction and the logic rule of the pilot well test; monitoring the valve on the production manifold and the valve on the test manifold in real time, and obtaining the state of the valve on the production manifold and the state of the valve on the test manifold; according to the state of the valve on the production manifold and the state of the valve on the test manifold, whether the valve on the production manifold and the valve on the test manifold act normally or not is judged; if normal, well guiding is completed; and if not, the test is stopped, and an abnormal alarm is output. On the basis of the method, one-key well guiding can be achieved, operation can be simplified, meanwhile, the response speed can be remarkably increased, the human error risk of manual operation can be avoided, the testing progress and efficiency can be improved, the safety risk can be improved, and personnel injury can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of petrochemical industry, and more specifically to a one-key well pilot test control method and system for an oil well. Background Art

[0002] There are production and test manifolds in the wellhead area of ​​a certain platform. Both manifolds have shut-off valves for each oil well. When measuring a single well, operators are required to open and close these valves separately, which is a large workload and there is the possibility of human error.

[0003] The main issues at present are as follows:

[0004] The operation is cumbersome and prone to errors. Each step requires manual operation of the valve, which is prone to omissions and improper operation, affecting production operations;

[0005] Slow response speed. Manual operation is inefficient and cannot respond to emergencies quickly, which affects the progress and efficiency of the test.

[0006] There are safety risks. On-site personnel need to frequently contact process pipelines and manifold areas, which poses a risk of personal injury. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a one-key well pilot test control method and system for an oil well in view of the problems existing in the prior art.

[0008] The technical solution adopted by the present invention to solve the technical problem is: constructing a one-key well pilot test control method for an oil well, comprising the following steps:

[0009] Receive test instructions;

[0010] Exporting logged wells and importing wells to be tested according to the test instructions and the logic rules of the pilot well test;

[0011] Monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold;

[0012] Judging whether the valves on the production manifold and the valves on the test manifold operate normally according to the valve states on the production manifold and the valve states on the test manifold;

[0013] If normal, the pilot well is completed;

[0014] If it is abnormal, the test will be stopped and an abnormal alarm will be output.

[0015] In the one-key well pilot test control method for oil wells of the present invention, the logic rules include:

[0016] During the import period, open the valves on the test manifold first, then close the valves on the production manifold;

[0017] During logging, keep the valve on the production manifold of the well to be logged open.

[0018] In the one-key well pilot test control method for an oil well of the present invention, the method further comprises:

[0019] After importing the well to be tested, collect multiphase flow meter data;

[0020] The well to be tested is tested according to the multiphase flow meter data, the valve status on the production manifold, and the valve status on the test manifold.

[0021] In the one-key well pilot test control method for an oil well of the present invention, the method further comprises:

[0022] In the process of testing the well to be tested, collecting test data and test progress information of the well to be tested in real time;

[0023] The test data and the test progress information are output and displayed.

[0024] The present invention also provides a one-key well pilot test control system for an oil well, which is applied to the one-key well pilot test control method for an oil well described above, and comprises: a host computer and a PLC control system;

[0025] The host computer is used to send test instructions to the PLC control system and output and display the test data and test progress information of the well to be tested;

[0026] The PLC control system is used to:

[0027] Receive test instructions;

[0028] Exporting logged wells and importing wells to be tested according to the test instructions and the logic rules of the pilot well test;

[0029] Monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold;

[0030] Judging whether the valves on the production manifold and the valves on the test manifold operate normally according to the valve states on the production manifold and the valve states on the test manifold;

[0031] If normal, the pilot well is completed;

[0032] If it is abnormal, the test will be stopped and an abnormal alarm will be output.

[0033] In the one-key well pilot test control system for oil wells of the present invention, the PLC control system comprises: a first PLC control unit and a second PLC control unit;

[0034] The first PLC control unit and the second PLC control unit are redundantly configured.

[0035] In the one-key well pilot test control system for oil wells of the present invention, the first PLC control unit comprises: a first PLC controller, a first power supply module and a first communication module;

[0036] The first PLC controller is used for:

[0037] Exporting logged wells and importing wells to be tested according to the test instructions and the logic rules of the pilot well test;

[0038] Monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold;

[0039] Judging whether the valves on the production manifold and the valves on the test manifold operate normally according to the valve states on the production manifold and the valve states on the test manifold;

[0040] If normal, the pilot well is completed;

[0041] If it is abnormal, the test will be stopped and an abnormal alarm will be output;

[0042] The first power supply module is used to provide power to each module in the first PLC control unit;

[0043] The first communication module is used to perform communication between the first PLC controller and the host computer.

[0044] In the one-key well pilot test control system for oil wells of the present invention, the second PLC control unit comprises: a second PLC controller, a second power supply module and a second communication module;

[0045] The second PLC controller is used for:

[0046] Exporting logged wells and importing wells to be tested according to the test instructions and the logic rules of the pilot well test;

[0047] Monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold;

[0048] Judging whether the valves on the production manifold and the valves on the test manifold operate normally according to the valve states on the production manifold and the valve states on the test manifold;

[0049] If normal, the pilot well is completed;

[0050] If it is abnormal, the test will be stopped and an abnormal alarm will be output;

[0051] The second power supply module is used to provide power to each module in the second PLC control unit;

[0052] The second communication module is used to perform communication between the second PLC controller and the host computer.

[0053] In the one-key well pilot test control system of the oil well of the present invention, the control system further includes: a first I / O unit and a second I / O unit, the first I / O unit and the second I / O unit are respectively connected to the first PLC control unit and the second PLC control unit, and the first I / O unit and the second I / O unit are redundantly set;

[0054] The first I / O unit and the second I / O unit each include a plurality of I / O modules;

[0055] The multiple I / O modules are used to collect valve states on the production manifold and the test manifold of the well to be tested.

[0056] In the one-key well piloting test control system for oil wells of the present invention, the host computer comprises: a one-key well piloting monitoring interface;

[0057] The one-key well guidance monitoring interface includes: a valve status display area, a test data display area, and a real-time logging data trend display area;

[0058] The valve status display area is used to display the valve status on the test manifold;

[0059] The test data display area is used to display the test data of the well to be logged;

[0060] The real-time logging data trend display area is used to display the real-time test data trend.

[0061] The one-key well piloting test control method and system for oil wells implemented in the present invention have the following beneficial effects: including the following steps: receiving test instructions; exporting the wells that have been tested and importing the wells to be tested according to the test instructions and the logical rules of the well piloting test; real-time monitoring of the valves on the production manifold and the valves on the test manifold, and obtaining the valve status on the production manifold and the valve status on the test manifold; judging whether the valves on the production manifold and the valves on the test manifold are operating normally according to the valve status on the production manifold and the valve status on the test manifold; if normal, completing the well piloting; if abnormal, stopping the test and outputting an abnormal alarm. Based on the present invention, one-key well piloting can be realized, which can simplify the operation, and at the same time can significantly improve the response speed, which can avoid the risk of human error in manual operation, and can also improve the progress and efficiency of the test, improve safety risks, and avoid personal injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0063] Figure 1 It is a schematic flow chart of the one-key well pilot test control method for oil wells provided by the present invention;

[0064] Figure 2 It is a principle block diagram of the one-key well pilot test control system for oil wells provided by the present invention;

[0065] Figure 3 It is a prototype diagram of the one-key well pilot test control system for oil wells provided by the present invention;

[0066] Figure 4 It is a schematic diagram of the one-key well guidance monitoring interface provided by the present invention. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0068] refer to Figure 1 , FIG. 1 is a preferred embodiment of the one-key well pilot test control method for oil wells provided by the present invention.

[0069] Specifically, Figure 1 As shown, the one-key well pilot test control method of the oil well includes the following steps:

[0070] Step S101: receiving a test instruction.

[0071] Optionally, in an embodiment of the present invention, a test instruction may be generated by a host computer based on a user input operation trigger and sent to a PLC control system.

[0072] Step S102: exporting the logged wells and importing the wells to be logged according to the test instructions and the logic rules of the well pilot test.

[0073] Optionally, in an embodiment of the present invention, the logic rules of the well pilot test include: during the introduction, first open the valve on the test manifold and then close the valve on the production manifold; during the logging period, keep the valve on the production manifold of the well to be logged in an open state.

[0074] Step S103: monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold.

[0075] Step S104: judging whether the valves on the production manifold and the valves on the test manifold operate normally according to the valve states on the production manifold and the valve states on the test manifold.

[0076] Step S105: If normal, the well piloting is completed.

[0077] Step S106: If abnormal, stop the test and output an abnormal alarm.

[0078] Specifically, according to the instructions or information input by the user, the host computer sends the corresponding test instructions for controlling the oil well to the PLC control system, and the PLC control system completes the valve opening and closing operations on the production manifold and the test manifold according to the test instructions, so as to export the logged wells to the test manifold and import the wells to be tested into the test manifold, thereby realizing the automatic control of the oil well test. Among them, the well guiding process mainly includes the operation steps of opening the valves on the test manifold and closing the valves on the production manifold, and monitoring the status of each valve in real time to ensure the smooth completion of the operation.

[0079] Furthermore, in an embodiment of the present invention, after the well to be tested is introduced, multiphase flow meter data is collected; the well to be tested is tested based on the multiphase flow meter data and the valve status on the production manifold and the valve status on the test manifold.

[0080] Specifically, after importing the well to be tested, it is also necessary to read the oil well data of the multiphase flowmeter (i.e., multiphase flowmeter data), and realize one-key automatic well testing based on the multiphase flowmeter data, valve status, and test instructions, greatly reducing the manual time required for well testing. Among them, the multiphase flowmeter data can be uploaded through the MSG (information transmission) function block.

[0081] Furthermore, in the embodiment of the present invention, during the process of testing the well to be tested, the test data and test progress information of the well to be tested are collected in real time, and the test data and test progress information are output and displayed. The test data includes but is not limited to: process parameters such as valve status, pressure, flow, and production of the oil well.

[0082] Among them, the one-key well piloting test control method of the oil well of the present invention can realize the automatic piloting and testing of 5 oil wells at one time.

[0083] refer to Figure 2 , Figure 2 The principle block diagram of the one-key well pilot test control system for oil wells provided by the present invention is shown in Figure 1. The one-key well pilot test control system for oil wells can be applied to the one-key well pilot test control method for oil wells disclosed in the embodiment of the present invention.

[0084] Specifically, Figure 2 As shown, the one-key well pilot test control system of the oil well includes: a host computer and a PLC control system.

[0085] Among them, the host computer is used to send test instructions to the PLC control system and output and display the test data and test progress information of the well to be tested.

[0086] The PLC control system is used to: receive test instructions; export the logged wells and import the wells to be logged according to the test instructions and the logical rules of the well pilot test; monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold; determine whether the valves on the production manifold and the valves on the test manifold are operating normally according to the valve status on the production manifold and the valve status on the test manifold; if normal, complete the well pilot; if abnormal, stop the test and output an abnormal alarm.

[0087] Optionally, in an embodiment of the present invention, the PLC control system includes: a first PLC control unit and a second PLC control unit; the first PLC control unit and the second PLC control unit are redundantly configured.

[0088] like Figure 2 As shown, the first PLC control unit includes: a first PLC controller, a first power supply module and a first communication module.

[0089] Among them, the first PLC controller is used to: export the logged wells and import the wells to be logged according to the test instructions and the logical rules of the well pilot test; monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold; judge whether the valves on the production manifold and the valves on the test manifold are operating normally according to the valve status on the production manifold and the valve status on the test manifold; if normal, complete the well pilot; if abnormal, stop the test and output an abnormal alarm.

[0090] The first power supply module is used to provide power to each module in the first PLC control unit. The first communication module is used to perform communication between the first PLC controller and the host computer.

[0091] In an embodiment of the present invention, the second PLC control unit includes: a second PLC controller, a second power supply module and a second communication module; the second PLC controller is used to: derive the logged wells and import the wells to be logged according to the test instructions and the logic rules of the well pilot test; monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold; judge whether the valves on the production manifold and the valves on the test manifold are normal according to the valve status on the production manifold and the valve status on the test manifold; if normal, complete the well pilot; if abnormal, stop the test and output an abnormal alarm; the second power supply module is used to provide power to each module in the second PLC control unit; the second communication module is used to execute communication between the second PLC controller and the host computer.

[0092] Furthermore, in an embodiment of the present invention, the one-key well pilot test control system of the oil well also includes: a first I / O unit and a second I / O unit, the first I / O unit and the second I / O unit are respectively connected to the first PLC control unit and the second PLC control unit, and the first I / O unit and the second I / O unit are redundantly configured.

[0093] The first I / O unit and the second I / O unit both include a plurality of I / O modules; wherein the plurality of I / O modules are used to collect valve states on the production manifold and the test manifold of the well to be tested.

[0094] like Figure 3 As shown, Figure 3 A prototype diagram of the one-key well pilot test control system for oil wells provided by the present invention.

[0095] like Figure 3 As shown, the one-key well pilot test control system of the oil well of the present invention is implemented in a modular manner. Specifically, Figure 3In the embodiment, the first PLC control unit and the second PLC control unit are redundantly configured. The first PLC control unit and the second PLC control unit both further include: a redundant module (respectively a first redundant module and a second redundant module) and an Ethernet module (respectively a first Ethernet module and a second Ethernet module).

[0096] like Figure 3 As shown in the figure, the PLC hardware adopts redundant settings, including processors, power modules and communication modules. Under normal circumstances, the two processors run as the main and standby processors to jointly complete the control task. Once the main processor fails, the system can automatically switch to the standby processor to ensure the continuity and reliability of control.

[0097] In addition, each I / O module includes digital input (DI) and digital output (DO) channels for collecting valve status feedback signals and outputting valve opening and closing commands. Furthermore, in order to ensure reliable transmission of field signals, the I / O module and the PLC controller are connected using a redundant ControlNet (referring to a control network with coaxial cable as the medium) communication network.

[0098] The present invention adopts PLC hardware with SIL2 certification as the core control unit, the processor (i.e., the first PLC controller and the second PLC controller) adopts redundant configuration, and the control network also adopts redundant design, thereby improving the fault tolerance of the system and ensuring the reliability and safety of the system. In addition, the system of the present invention adopts a modular design and has the characteristics of flexible expansion to meet the needs of expanding the number of oil wells in the later stage. When guiding the well, the system can automatically complete the well guidance operation according to the user's instructions, such as opening the test manifold valve and closing the production valve, and a series of operations, while monitoring the status of each valve in real time to ensure that the operation is completed smoothly. During the test process, the system will monitor the operating status of each link in real time. Once an abnormality is found, such as valve jamming, pressure exceeding the limit, etc., the system will immediately stop the test and send out an audible and visual alarm to remind the on-site personnel to handle it. After the abnormal cause is checked, the system can automatically resume the test.

[0099] like Figure 4 As shown, the host computer includes: a one-key well pilot monitoring interface. The one-key well pilot monitoring interface includes: a valve status display area, a test data display area, and a real-time logging data trend display area.

[0100] In the embodiment of the present invention, the valve status display area is used to display the valve status on the test manifold; the test data display area is used to display the test data of the well to be tested; and the real-time logging data trend display area is used to display the real-time test data trend.

[0101] Specifically, in the valve status display area, the status of the corresponding valve on the test manifold can be intuitively displayed, such as closed valves are displayed in red, and open valves are displayed in green. The test data display area can directly display the current well logging, such as Figure 4 Well logging status: Well A4 is in the well logging status. At the same time, the well logging data, such as temperature, pressure, water content, liquid flow, oil flow, etc., can be displayed in real time, as well as the progress information of the entire test process, so that production personnel can grasp the test operation status at any time.

[0102] The present invention collects the opening feedback signals of the electric valves on the production manifolds and test manifolds of 5 oil wells in real time through the I / O module to realize the collection and monitoring of the valve status. At the same time, the opening and closing status of the manual valves can also be collected. These data are used as the input basis of the subsequent processor to realize the monitoring of the valve status.

[0103] According to the test instructions, the system automatically outputs an open / close command to the corresponding electric drive device (device used to drive the valve) to control the opening and closing of each valve on the production manifold and the test manifold. At the same time, the system will also monitor the opening and closing status of the valve, identify the status of the valve based on the feedback signal of the collected valve status, and ensure the correctness of the operation.

[0104] During the test, the system will monitor the operating status of each link in real time. Once an abnormality is found, such as valve jamming, the system will immediately stop the test and issue an alarm to remind on-site personnel to handle it.

[0105] Of course, it is understandable that in some other embodiments, an industrial computer can be used to replace the PLC controller, that is, the host computer hardware uses an industrial computer equipped with an IO card to realize valve status collection and switch control.

[0106] The present invention collects the valve status of each oil well on the production and test manifolds, performs functional configuration based on the logical rules of the well guide, responds quickly according to the input information, and outputs the corresponding valve opening and closing command signals to the corresponding shut-off valves. Specifically, the system will automatically complete the export and import operations of the oil wells on the test manifold according to the user's test instructions, and control the oil and gas to flow from the formation into the test pipeline by controlling the opening or closing of the corresponding valves. At the same time, the system will monitor the status of each valve in real time. Once an abnormal situation is found, the test will be stopped immediately and an alarm will be issued to ensure the safety and reliability of the entire process.

[0107] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0108] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0109] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0110] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot limit the scope of protection of the present invention. All equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A one-key well pilot test control method for an oil well, characterized in that: The following steps are involved: Receive test instructions; Exporting logged wells and importing wells to be tested according to the test instructions and the logic rules of the pilot well test; Monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold; Judging whether the valves on the production manifold and the valves on the test manifold operate normally according to the valve states on the production manifold and the valve states on the test manifold; If normal, the pilot well is completed; If it is abnormal, the test will be stopped and an abnormal alarm will be output.

2. The one-key well pilot test control method for oil wells according to claim 1, characterized in that: The logic rules include: During the import period, open the valves on the test manifold first, then close the valves on the production manifold; During logging, keep the valve on the production manifold of the well to be logged open.

3. The one-key well pilot test control method for oil wells according to claim 1, characterized in that: The method further comprises: After importing the well to be tested, collect multiphase flow meter data; The well to be tested is tested according to the multiphase flow meter data, the valve status on the production manifold, and the valve status on the test manifold.

4. The one-key well pilot test control method for oil wells according to claim 1, characterized in that: The method further comprises: In the process of testing the well to be tested, collecting test data and test progress information of the well to be tested in real time; The test data and the test progress information are output and displayed.

5. A one-key well pilot test control system for an oil well, applied to the one-key well pilot test control method for an oil well according to any one of claims 1 to 4, characterized in that: include: Host computer and PLC control system; The host computer is used to send test instructions to the PLC control system and output and display the test data and test progress information of the well to be tested; The PLC control system is used to: Receive test instructions; Exporting logged wells and importing wells to be tested according to the test instructions and the logic rules of the pilot well test; Monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold; Judging whether the valves on the production manifold and the valves on the test manifold operate normally according to the valve states on the production manifold and the valve states on the test manifold; If normal, the pilot well is completed; If it is abnormal, the test will be stopped and an abnormal alarm will be output.

6. The one-key well pilot test control system for oil wells according to claim 5, characterized in that: The PLC control system comprises: a first PLC control unit and a second PLC control unit; The first PLC control unit and the second PLC control unit are redundantly configured.

7. The one-key well pilot test control system for oil wells according to claim 6, characterized in that: The first PLC control unit includes: a first PLC controller, a first power supply module and a first communication module; The first PLC controller is used for: Exporting logged wells and importing wells to be tested according to the test instructions and the logic rules of the pilot well test; Monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold; Judging whether the valves on the production manifold and the valves on the test manifold operate normally according to the valve states on the production manifold and the valve states on the test manifold; If normal, the pilot well is completed; If it is abnormal, the test will be stopped and an abnormal alarm will be output; The first power supply module is used to provide power to each module in the first PLC control unit; The first communication module is used to perform communication between the first PLC controller and the host computer.

8. The one-key well pilot test control system for oil wells according to claim 6, characterized in that: The second PLC control unit includes: a second PLC controller, a second power supply module and a second communication module; The second PLC controller is used for: Exporting logged wells and importing wells to be tested according to the test instructions and the logic rules of the pilot well test; Monitor the valves on the production manifold and the valves on the test manifold in real time, and obtain the valve status on the production manifold and the valve status on the test manifold; Judging whether the valves on the production manifold and the valves on the test manifold operate normally according to the valve states on the production manifold and the valve states on the test manifold; If normal, the pilot well is completed; If it is abnormal, the test will be stopped and an abnormal alarm will be output; The second power supply module is used to provide power to each module in the second PLC control unit; The second communication module is used to perform communication between the second PLC controller and the host computer.

9. The one-key well pilot test control system for oil wells according to claim 6, characterized in that: Also includes: A first I / O unit and a second I / O unit, wherein the first I / O unit and the second I / O unit are connected to the first PLC control unit and the second PLC control unit respectively, and the first I / O unit and the second I / O unit are redundantly configured; The first I / O unit and the second I / O unit each include a plurality of I / O modules; The multiple I / O modules are used to collect valve states on the production manifold and the test manifold of the well to be tested.

10. The one-key well pilot test control system for oil wells according to claim 5, characterized in that: The host computer includes: a one-key well guidance monitoring interface; The one-key well guidance monitoring interface includes: a valve status display area, a test data display area, and a real-time logging data trend display area; The valve status display area is used to display the valve status on the test manifold; The test data display area is used to display the test data of the well to be logged; The real-time logging data trend display area is used to display the real-time test data trend.

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