Hole diameter logger control system and control device

Abstract

The utility model discloses a caliper logger control system which comprises an alternating-current transformer, the output end of the alternating-current transformer is connected with a first switch, the first switch divides current into an opening circuit and a converging circuit, the two circuits are respectively connected with a rectifier bridge, the rectifier bridges are electrically connected with a relay, a branch circuit is branched from the opening circuit and communicated with a switching power supply, and the switching power supply is connected with a relay. The switching power supply is electrically connected with the relay, and the relay is electrically connected with a connector. The system further comprises a control device carrying the system. The device has the advantage of being easy to operate, and the problems that when an existing caliper logging instrument is daily maintained, line connection between the caliper logging instrument and a telemetry instrument or a logging ground system is complex, the maintenance difficulty is high, and the maintenance efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of well diameter logging instrument control system, and relates to a control device carrying the system. BACKGROUND

[0002] In the process of oil exploitation, the drilling construction is very important, and cement needs to be injected into the well for well cementing after the drilling rig drilling is completed, but the cement amount required for well cementing cannot be accurately estimated due to the different inner diameters of the drilled wells, so the inner diameter data of the well need to be obtained by the well diameter logging instrument before the cement is injected.

[0003] In the conventional logging, the well diameter logging instrument is usually directly connected to the lower end of the remote instrument to carry out logging work. In terms of the opening and closing operation of the push arm, under the condition of the main power supply of the instrument, the opening or closing instruction can be directly clicked on the system interface window of the remote instrument to realize the opening or closing of the push arm of the well diameter logging instrument. After the instruction is issued, the remote instrument obtains the information of the well diameter by the current information of different opening angles of the push arm, and the staff can directly observe the change of the well diameter X and Y values by the information collected by the well diameter logging instrument. However, the remote instrument has a complex structure, and needs to be connected to multiple lines when connected to the well diameter logging instrument, and also needs to be connected to other ground systems for collecting and calculating information while controlling the well diameter logging instrument push arm, so the process is relatively complicated. However, during the daily inspection and maintenance of the well diameter logging instrument, only the opening and closing of the push arm need to be controlled, which is convenient for maintenance work, and there is no need to collect and calculate information, so the connection of the complex line increases the cost required for daily maintenance, resulting in low maintenance efficiency. Therefore, a device for controlling the opening and closing of the push arm through simple connection is needed to improve the maintenance efficiency during the daily maintenance of the well diameter logging instrument. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a well diameter logging instrument control system, which solves the problem of low maintenance efficiency caused by complex line connection during the daily maintenance of the well diameter logging instrument in the prior art.

[0005] The utility model adopts the technical scheme that the input end of the alternating current transformer is connected with the fuse, the output end of the alternating current transformer is connected with the first switch, the current is divided into the opening circuit and the closing circuit by the first switch, the two circuits are connected with the rectifier bridge respectively, the rectifier bridge is connected with the relay in electric property, the opening circuit is connected with the switch power supply, the switch power supply is connected with the relay in electric property, and the relay is connected with the connector in electric property.

[0006] The utility model has the characteristics that:

[0007] The input end of the alternating current transformer is connected with the fuse.

[0008] The first switch is a rocker button switch.

[0009] The second switch is arranged between the opening circuit upper branch and the rectifier bridge.

[0010] The second switch is a contact pressing switch.

[0011] The switch power supply is a JMD20-A type switch power supply.

[0012] The rectifier bridge is a full-bridge rectifier bridge composed of four diodes.

[0013] Another technical solution adopted by the utility model is that the control device of the above system comprises a control box body, the surface of the control box body is connected with a box cover plate through bolts, the box cover plate is fixedly connected with a socket group, a side of the control box body is fixedly connected with a connector corresponding to the input end of the alternating current transformer.

[0014] A handle is fixedly connected to the side wall of the control box body.

[0015] Beneficial effects:

[0016] The utility model discloses a well diameter logging instrument control system, and the well diameter logging instrument is connected with the remote instrument and the ground system, and only needs to be connected with the control circuit of the well diameter logging instrument through the connector, so that the opening and closing of the push arm can be controlled through the first switch and the second switch, the line connection is less, the operation mode is simple, the well diameter logging instrument can be preliminarily controlled without long-time learning, the maintenance time of the well diameter logging instrument and the labor intensity of the staff can be reduced, and the maintenance efficiency is improved. DRAWINGS

[0017] Figure 1 It is the structure schematic view of the well diameter logging instrument control system of the utility model;

[0018] Figure 2 It is the structure schematic view of the well diameter logging instrument control device of the utility model.

[0019] In the drawing: 1, alternating current transformer;2, first switch;3, opening circuit;4, closing circuit;5, rectifier bridge;6, relay;7, switch power supply;8, connector;9, fuse;10, second switch;11, control box body;12, box cover plate;13, socket group;14, handle. DETAILED DESCRIPTION

[0020] The utility model will be described in detail in combination with the drawings and specific embodiments.

[0021] Example one:

[0022] As Figure 1As shown, it includes an AC transformer 1, the output terminal of the AC transformer 1 is connected to a first switch 2, the first switch 2 divides the current into an opening circuit 3 and a closing circuit 4, the two circuits are respectively connected to a rectifier bridge 5, the rectifier bridge 5 is electrically connected to a relay 6, a branch is branched off from the opening circuit 3 and connected to a switching power supply 7, the switching power supply 7 is electrically connected to the relay 6, and the relay 6 is electrically connected to a connector 8.

[0023] The external power supply voltage is converted into a voltage suitable for the device by the AC transformer 1, and the opening and closing of the logging tool push arm is adjusted by the circuit connected by the first switch 2.

[0024] When the first switch 2 is connected to the convergence circuit 4, the AC power output from the AC transformer 1 enters the rectifier bridge 5 through the convergence circuit 4 and is converted into DC power. Then, it is transmitted to the logging instrument connected to the connector 8 through the relay 6, so that the push arm on the logging instrument remains in the convergence state.

[0025] When the first switch 2 is connected to the opening circuit 3, the AC power output from the AC transformer 1 enters the rectifier bridge 5 through the opening circuit 3. At the same time, a portion of the current enters the switching power supply 7 through a branch. The switching power supply 7 converts the AC power into DC power and inputs it into the relay 6, changing the connection mode of the circuit inside the relay 6. At this time, the current in the rectifier bridge 5 enters the logging instrument connected to the connector 8 through the relay 6, causing the push arm on the logging instrument to open.

[0026] Example 2:

[0027] like Figure 1 As shown, it includes an AC transformer 1, the output terminal of the AC transformer 1 is connected to a first switch 2, the first switch 2 divides the current into an opening circuit 3 and a closing circuit 4, the two circuits are respectively connected to a rectifier bridge 5, the rectifier bridge 5 is electrically connected to a relay 6, a branch is branched off from the opening circuit 3 and connected to a switching power supply 7, the switching power supply 7 is electrically connected to the relay 6, and the relay 6 is electrically connected to a connector 8.

[0028] A fuse 9 is connected to the input terminal of AC transformer 1.

[0029] Fuse 9 is used to protect other components in the system. When the circuit rises abnormally, it automatically cuts off the circuit by melting itself. It can effectively protect other electronic equipment in the control system and the well logging instrument connected to it from overload and short circuit, thus improving the stability and safety of the device.

[0030] Example 3:

[0031] like Figure 1As shown, it includes an AC transformer 1, the output terminal of the AC transformer 1 is connected to a first switch 2, the first switch 2 divides the current into an opening circuit 3 and a closing circuit 4, the two circuits are respectively connected to a rectifier bridge 5, the rectifier bridge 5 is electrically connected to a relay 6, a branch is branched off from the opening circuit 3 and connected to a switching power supply 7, the switching power supply 7 is electrically connected to the relay 6, and the relay 6 is electrically connected to a connector 8.

[0032] The first switch 2 is a rocker arm toggle switch.

[0033] The first switch 2 needs to connect to the AC transformer 1, the opening circuit 3, and the closing circuit 4, and has multi-level adjustment requirements. Furthermore, the switching of the first switch 2 between the opening circuit 3 and the closing circuit 4 is the main action for adjusting the opening and closing of the push arm of the wellbore logging tool. It is necessary to prevent accidental activation that could cause the push arm to open or close. The rocker arm toggle switch requires a certain amount of force to push, which can effectively prevent accidental activation.

[0034] Example 4:

[0035] like Figure 1 As shown, it includes an AC transformer 1, the output terminal of the AC transformer 1 is connected to a first switch 2, the first switch 2 divides the current into an opening circuit 3 and a closing circuit 4, the two circuits are respectively connected to a rectifier bridge 5, the rectifier bridge 5 is electrically connected to a relay 6, a branch is branched off from the opening circuit 3 and connected to a switching power supply 7, the switching power supply 7 is electrically connected to the relay 6, and the relay 6 is electrically connected to a connector 8.

[0036] A second switch 10 is provided between the branch of the open circuit 3 and the rectifier bridge 5.

[0037] In well logging tools, the push arm is generally a linkage mechanism formed by connecting multiple links. When it is in the open state, the outward-extending links are easily bent under external impact, which affects the monitoring of the well caliper. Therefore, in addition to the first switch 2 used to adjust the opening and closing of the push arm, a second switch 10 is added to the opening circuit 3 to control the opening state of the push arm, so as to avoid unnecessary losses caused by accidental operation that causes the push arm to open.

[0038] Example 5:

[0039] like Figure 1 As shown, it includes an AC transformer 1, the output terminal of the AC transformer 1 is connected to a first switch 2, the first switch 2 divides the current into an opening circuit 3 and a closing circuit 4, the two circuits are respectively connected to a rectifier bridge 5, the rectifier bridge 5 is electrically connected to a relay 6, a branch is branched off from the opening circuit 3 and connected to a switching power supply 7, the switching power supply 7 is electrically connected to the relay 6, and the relay 6 is electrically connected to a connector 8.

[0040] A second switch 10 is provided between the branch of the open circuit 3 and the rectifier bridge 5.

[0041] The second switch 10 is a contact pressing switch.

[0042] The contact pressing switch only connects the circuit when pressed, causing the electronic components in the circuit to start running. However, the push arm of the caliper logging instrument is prone to bending under external impact when in the open state, resulting in the push arm not working normally. By using a contact pressing switch to control the open state of the push arm, the power source of the push arm can be disconnected in the event of a loss of pressure. This greatly shortens the time window for the push arm to be in the open state, effectively avoiding the potential damage risk caused by long-term exposure. At the same time, this also means that even in an emergency situation requiring quick evacuation or unexpected situation, the device can still be protected in time, reducing the maintenance cost and downtime caused by accidents.

[0043] Embodiment six:

[0044] As shown in Figure 1 , it includes an AC transformer 1, the output end of the AC transformer 1 is connected with a first switch 2, the first switch 2 divides the current into an opening circuit 3 and a converging circuit 4, two circuits are respectively connected with a rectifier bridge 5, the rectifier bridge 5 is electrically connected with a relay 6, a branch of the opening circuit 3 is connected with a switching power supply 7, the switching power supply 7 is electrically connected with the relay 6, and the relay 6 is electrically connected with a connector 8.

[0045] The switching power supply 7 is a JMD20-A type switching power supply.

[0046] The rectifier bridge 5 is a full-bridge rectifier bridge composed of four diodes.

[0047] The full-bridge rectifier bridge is composed of four diodes in pairs, which can ensure that no matter how the input voltage changes, the output end can always obtain a pulsating direct current voltage with unchanged direction, providing a stable energy source for the caliper logging instrument, thereby adjusting the convergence and opening of the push arm.

[0048] Embodiment seven:

[0049] As shown in Figure 2 , it includes a control box 11, the surface of the control box 11 is connected with a box cover plate 12 through bolts, the box cover plate 12 is fixedly connected with a socket group 13, corresponding to the input end of the AC transformer 1, one side of the control box 11 is fixedly connected with the connector 8.

[0050] The side wall of the control box 11 is fixedly connected with a handle 14.

[0051] The handle 14 is provided to make the device portable, improving the portability of the device.

[0052] Use method and working principle:

[0053] Step 1: connect the joint 8 with the well caliper, then connect the power supply with the AC transformer 1 under the condition that the first switch 2 is connected with the convergence circuit 4.

[0054] At this time, the current changes the voltage in the AC transformer 1, then is converted into direct current in the rectifier bridge 5, enters the well caliper through the relay 6 and the joint 8, and drives the motor to recover the push arm, so that the well caliper is switched to the convergence state.

[0055] Step 2: when the push arm of the well caliper needs to be opened, the first switch 2 is connected with the opening circuit 3, and then the second switch 10 is pressed.

[0056] When the first switch 2 is connected with the opening circuit 3, the current output by the AC transformer 1 first enters the switch power supply 7 from the branch of the opening circuit 3, the switch power supply 7 converts the alternating current into direct current and inputs the relay 6, so that the circuit connection mode in the relay 6 is changed, thereby adjusting the flow direction of the current controlled by the relay 6.

[0057] After the second switch 10 is pressed, the convergence circuit 4 is connected with the rectifier bridge 5, the current output by the AC transformer 1 enters the rectifier bridge 5, and then enters the well caliper through the relay 6 and the joint 8. Since the circuit connection mode in the relay 6 has been changed at this time, the relay 6 changes the current direction of the current output by the rectifier bridge 5 and inputs the well caliper, so that the motor drives the push arm to be switched to the open state.

[0058] Step 3: after the relevant operation is completed, the first switch 2 is connected with the convergence circuit 4, so that the push arm of the well caliper is converged, then the connection between the AC transformer 1 and the power supply is disconnected, and finally the joint is disconnected with the well caliper.

[0059] The utility model discloses a kind of well caliper control systems provided by circuit design, for controlling the well caliper driven by single motor push arm movement, by AC transformer 1, the voltage inputted from outside is converted into the voltage suitable for the operation of remaining devices in system, simultaneously by the connection condition of first switch 2 and second switch 10 control circuit, so as to adjust the opening and convergence of push arm.

[0060] By adopting the control device equipped with the system, the operator can easily control the opening and closing of the push arm of the well diameter logging instrument without complex wiring work. This improvement not only greatly reduces the technical difficulty in the operation process, but also reduces the physical labor intensity required by the staff when performing related tasks. In addition, the maintenance process is simplified, making daily maintenance of the well diameter logging instrument more convenient and efficient. Overall, such design improves the work efficiency during equipment maintenance and provides a more friendly and intuitive operation experience for on-site technicians, which helps to improve the safety and reliability of the entire exploration or production operation.

Claims

1. A caliper tool control system characterized by, Including alternating current transformer (1), the output of alternating current transformer (1) is connected with first switch (2), first switch (2) divides into opening circuit (3) and convergence circuit (4), two circuits are connected with rectifier bridge (5) respectively, rectifier bridge (5) is electrically connected with relay (6), a branch of opening circuit (3) is connected with switching power supply (7), switching power supply (7) is electrically connected with relay (6), relay (6) is electrically connected with connector (8); Second switch (10) is arranged between the branch of opening circuit (3) and rectifier bridge (5). The input of alternating current transformer (1) is connected with fuse (9).

2. The caliper tool control system of claim 1, wherein, First switch (2) is rocker button switch.

3. The caliper tool control system of claim 1, wherein, Second switch (10) is contact pressing switch.

4. The caliper tool control system of claim 1, wherein, Switching power supply (7) is JMD20-A type switching power supply.

5. The caliper tool control system of claim 1, wherein, Rectifier bridge (5) is full-bridge rectifier bridge composed of four diodes.

6. Control device, characterized in that The well diameter logging instrument control system of any one of claims 1-5 is applied, including control box body (11), the surface of control box body (11) is connected with box cover plate (12) through bolt, the box cover plate (12) is fixedly connected with socket group (13), corresponding the input of alternating current transformer (1), one side of control box body (11) is fixedly connected with connector (8).

7. The control device of claim 6, wherein The side wall of control box body (11) is fixedly connected with handle (14).

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