Simulation device for formation resistance information

Abstract

The utility model discloses a simulation device for formation resistance information, which comprises a box body, a panel of the box body is provided with a socket hole group for plugging a soft connection wire, and the socket hole group comprises a first power supply socket hole, a second power supply socket hole, a first measurement socket hole and a second measurement socket hole; a resistor network is arranged in the box body and comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, two eighth resistors, a first ninth resistor and a tenth resistor which are sequentially connected in series, and one end of the first resistor is connected with the first measuring socket hole; one end of the tenth resistor is connected with the second measuring socket hole, a rotary switch is further arranged in the box body, the knob end of the rotary switch is exposed to the outside, and the rotary switch is connected with the resistor network and connected with the first power supply socket hole, the first measuring socket hole and the second measuring socket hole. According to the invention, the number and range of analog resistors are increased, and the operation complexity is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a simulation device for formation resistance information. Background Technique

[0002] The measurement of formation resistivity is an important geophysical exploration method. It obtains the physical properties of underground rocks and fluids by measuring the resistance of the formation to current. In the field of petroleum geological exploration, the measurement of formation resistance can achieve purposes such as lithology division, determination of the resistivity of permeable layers and invasion zones, determination of formation thickness, cross-section comparison, determination of the true resistivity of rock formations, and qualitative judgment of oil and gas layers.

[0003] The resistivity logging instrument is a device for measuring formation resistivity and is widely used in the field of petroleum geological exploration. Whether the resistivity logging instrument can accurately measure formation data plays a crucial role in later data analysis and formation information determination. Therefore, it is very necessary to calibrate and test the accuracy of the resistivity logging instrument through a simulation device for formation resistance information.

[0004] In related technologies, problems such as the small number of selected resistors and low resistance values of the simulation device for formation resistance information limit the use scenarios of the calibration box, and it is impossible to simulate high-resistance formations. Moreover, when switching the internal resistance, two rotary switches need to be rotated, which increases the complexity of the operation and also increases the failure rate of the calibration box. Content of the Utility Model

[0005] In order to solve the above problems, the utility model provides a simulation device for formation resistance information to solve this problem.

[0006] To achieve the above object, the present application provides the following technical solutions:

[0007] A simulation device for formation resistance information includes a box body. Socket hole groups for plugging flexible wires are provided on the panel of the box body. The socket hole groups include a first power supply socket hole, a second power supply socket hole, a first measurement socket hole, and a second measurement socket hole. A resistance network is arranged in the box body. The resistance network includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, two eighth resistors, a first ninth resistor, and a tenth resistor connected in series in sequence. One end of the first resistor is connected to the first measurement socket hole, and one end of the tenth resistor is connected to the second measurement socket hole. A rotary switch is also arranged in the box body, and the knob end of the rotary switch is exposed to the outside. The rotary switch is connected to the resistance network and is connected to the first power supply socket hole, the first measurement socket hole, and the second measurement socket hole.

[0008] Further set as: both ends of the first resistor are respectively connected with a first contact point and a first contact point ', both ends of the second resistor are respectively connected with a second contact point and a second contact point ', both ends of the third resistor are respectively connected with a third contact point and a third contact point ', both ends of the fourth resistor are respectively connected with a fourth contact point and a fourth contact point ', a fifth contact point is connected to the wire between the fourth resistor and the fifth resistor, a fifth contact point'is connected to the wire between the fifth resistor and the sixth resistor, a sixth contact point is connected between the sixth resistor and the seventh resistor, a seventh contact point is connected between the seventh resistor and the eighth resistor, an eighth contact point is connected between the eighth resistor and the ninth resistor, a ninth contact point is connected between the ninth resistor and the tenth resistor, and the other end of the tenth resistor is connected with a tenth contact point.

[0009] Further set as: the rotary switch is a three - blade twelve - position band switch, and the rotary switch includes a first rotary blade, a second rotary blade, and a third rotary blade.

[0010] Further set as: the 1 - pin of the first rotary blade is connected to the first power supply socket hole of the power supply circuit, the 2 - pin of the first rotary blade is connected to the 3 - pin - 11 - pin through a wire, the 11 - pin of the first rotary blade is connected to the ninth contact point, and the 12 - pin of the first rotary blade is connected to the tenth contact point.

[0011] Further set as: the 1 - pin of the second rotary blade is connected to the first measurement socket hole of the measurement circuit, the 2 - pin of the second rotary blade is connected to the 2 - pin of the third rotary blade through a wire, the 3 - pin of the second rotary blade is connected to the first contact point ', the 4 - pin is connected to the second contact point ', the 5 - pin is connected to the third contact point ', the 6 - pin is connected to the fourth contact point ', the 7 - pin is connected to the fifth contact point ', the 8 - pin is connected to the sixth contact point, the 9 - pin is connected to the seventh contact point, the 10 - pin is connected to the eighth contact point, the 11 - pin is connected to the ninth contact point, and the 12 - pin is connected to the tenth contact point.

[0012] Further set as: the 1 - pin of the third rotary blade is connected to the second measurement socket hole of the measurement circuit, the 2 - pin of the third rotary blade is connected to the 3 - pin of the third rotary blade through another wire on the wire connecting to the 2 - pin of the second rotary blade, and the 3 - pin of the third rotary blade is connected to the first contact point, the 4 - pin is connected to the second contact point, the 5 - pin is connected to the third contact point, the 6 - pin is connected to the fourth contact point; the 7 - pin of the third rotary blade is connected to the 8 - pin - 12 - pin of the third rotary blade through a wire, and the 12 - pin of the third rotary blade is connected to the fifth contact point.

[0013] Further set as: there is a marked letter A engraved on the box body at the first power supply socket hole, a marked letter B engraved on the box body at the second power supply socket hole, a marked letter M engraved on the box body at the first measurement socket hole, and a marked letter N engraved on the box body at the second measurement socket hole.

[0014] It is further set that: around the knob end of the rotary switch on the box body, a circle of numbers marked from 0 to 10 are evenly provided.

[0015] It is further set that: the first resistor, the second resistor, the third resistor and the fourth resistor all use four-wire resistors.

[0016] It is further set that: the fifth resistor, the sixth resistor, the seventh resistor, the eighth resistor, the ninth resistor and the tenth resistor all use EE1 / 10 resistors.

[0017] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0018] 1. Increase the number and range of analog resistors: By selecting resistors with various resistance values, the present utility model realizes the resistance value distribution from 0.01 ohm to 200 ohms, expanding the coverage of simulation. The specific resistance values include 0.01 ohm, 0.05 ohm, 0.2 ohm, 0.5 ohm, 2 ohms, 3 ohms, 5 ohms, 30 ohms, 200 ohms; for small-value resistors (0.5 ohm and below), four-wire resistors are used to ensure that the accuracy of the resistor itself reaches ±0.5%; for large-value resistors (2 ohms and above), EE1 / 10 high-precision resistors are used to ensure that the accuracy of the resistor itself reaches 0.1%.

[0019] 2. Simplify the operation complexity: The present utility model uses a three-knife twelve-contact rotary switch as the user operation medium, reducing the operation steps and the operation difficulty. There is only one operation way for the gear shift, reducing the errors caused by complex operations.

[0020] 3. Improve the reliability and durability: The present utility model selects a rotary switch of the ceramic substrate series to ensure the reliability of the contacts during repeated switching and reduce the failure rate.

[0021] 4. Clear marking: The outside of the present utility model uses a rectangular box made of metal as the carrier, with a rotary switch knob and 4 jacks on it, and marked with the letters A, M, N, B, which is consistent with the electrode logging instrument and used to connect the electrode array instrument. A circle of numbers from 0 to 10 is marked around the rotary switch to indicate the gear, making it small, beautiful and clearly marked, meeting the usage specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Front view schematic diagram of the box body of the present invention;

[0024] Figure 2 Schematic diagram of the circuit connection inside the box body of the present invention;

[0025] Figure 3 For Figure 2 Enlarged right side schematic diagram of the resistor network shown;

[0026] Figure 4 For Figure 2 Enlarged left side schematic diagram of the resistor network shown;

[0027] Figure 5 For Figure 2 Schematic diagram of the first rotary blade, the second rotary blade, and the third rotary blade shown;

[0028] Figure 6 Structural diagram of the rotary switch.

[0029] Reference numerals: 1. Box body; 2. Rotary switch; An analog device for formation resistance information 1. First power supply socket hole; An analog device for formation resistance information 2. First measurement socket hole; An analog device for formation resistance information 3. Second measurement socket hole; An analog device for formation resistance information 4. Second power supply socket hole; R1. First resistor; R2. Second resistor; R3. Third resistor; R4. Fourth resistor; R5. Fifth resistor; R6. Sixth resistor;

[0030] R7. Seventh resistor; R8. Eighth resistor; R9. Ninth resistor; R10. Tenth resistor; T1. First contact point; T1'. First contact point'; T2. Second contact point; T2'. Second contact point'; T3. Third contact point; T3'. Third contact point'; T4. Fourth contact point; T4'. Fourth contact point'; T5. Fifth contact point; T5'. Fifth contact point'; T6. Sixth contact point; T7. Seventh contact point; T8. Eighth contact point; T9. Ninth contact point; T10. Tenth contact point; SW1-1. First rotary blade; SW1-2. Second rotary blade; SW1-3. Third rotary blade. Specific embodiments

[0031] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0032] The terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Embodiment

[0035] Refer to Figures 1-5 , a simulation device for formation resistance information disclosed by the present utility model, which includes a box body 1. The box body 1 is made of an aluminum alloy plate and is rectangular in shape. On the panel of the box body 1, there is a socket hole group for plugging in flexible wires, and the socket hole group includes a first power supply socket hole X1, a second power supply socket hole X4, a first measurement socket hole X2, and a second measurement socket hole X3;

[0036] Among them, there is a marked letter A engraved on the box body 1 at the first power supply socket hole X1, a marked letter B engraved on the box body 1 at the second power supply socket hole X4, a marked letter M engraved on the box body 1 at the first measurement socket hole X2, and a marked letter N engraved on the box body 1 at the second measurement socket hole X3;

[0037] This simulation device is used to connect the electrode system short section of a general resistivity logging tool with the telemetry short section, connect the downhole tool with the electrode horsehead, and the EILog surface system issues commands to make the instrument in the logging state.

[0038] In this embodiment, the socket hole group is used for the connection of the electrode horsehead. Specifically, the two power supply electrodes A and B of the electrode horsehead are respectively connected to the first power supply socket hole X1 and the second power supply socket hole X4 through short wires, thereby forming a power supply circuit for simulating the situation where the electrodes provide current to the formation in actual logging. The two 4-meter measurement electrodes 4M and 4N of the electrode horsehead are connected to the first measurement socket hole X2 and the second measurement socket hole X3 through short wires, thereby forming a measurement circuit for simulating the situation where the electrodes measure the formation resistivity in actual logging.

[0039] A resistance network and a rotary switch 2 are arranged in the box body 1, and the knob end of the rotary switch 2 is exposed to the outside for screwing.

[0040] The resistance network includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, two eighth resistors R8, a first ninth resistor R9, and a tenth resistor R10 that are connected in series through wires in sequence. One end of the first resistor R1 is connected to the second power supply socket hole X4; and one end of the tenth resistor R10 is connected to the first power supply socket hole X1;

[0041] Among them, the first resistor R1, the second resistor R2, the third resistor R3, and the fourth resistor R4 all use four-wire resistors to ensure that the accuracy of the resistor itself reaches ±0.5%. Specifically, their resistance values are 0.01 ohm, 0.05 ohm, 0.2 ohm, and 0.5 ohm in sequence;

[0042] The fifth resistor R5, the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, the ninth resistor R9, and the tenth resistor R10 all use EE1 / 10 high-precision resistors. Specifically, their resistance values are 2 ohms, 3 ohms, 5 ohms, 5 ohms, 30 ohms, and 200 ohms in sequence;

[0043] In this embodiment, a first contact point T1 and a first contact point 'T1' are respectively connected to both ends of the first resistor R1, a second contact point T2 and a second contact point 'T2' are respectively connected to both ends of the second resistor R2, a third contact point T3 and a third contact point 'T3' are respectively connected to both ends of the third resistor R3, a fourth contact point T4 and a fourth contact point 'T4' are respectively connected to both ends of the fourth resistor R4, a fifth contact point T5 is connected to the wire between the fourth resistor R4 and the fifth resistor R5, a fifth contact point 'T5' is connected to the wire between the fifth resistor R5 and the sixth resistor R6, a sixth contact point T6 is connected between the sixth resistor R6 and the seventh resistor R7, a seventh contact point T7 is connected between the seventh resistor R7 and the eighth resistor R8, an eighth contact point T8 is connected between the eighth resistor R8 and the ninth resistor R9, a ninth contact point T9 is connected between the ninth resistor R9 and the tenth resistor R10, and a tenth contact point T10 is connected to the other end of the tenth resistor R10;

[0044] In this embodiment, the rotary switch 2 is a three-knife and twelve-position band switch, which includes a first rotary blade SW1-1, a second rotary blade SW1-2, and a third rotary blade SW1-3. Among them, the pin 1 of the first rotary blade SW1-1 is connected to the first power supply socket hole X1 of the power supply circuit, the pin 2 of the first rotary blade SW1-1 is connected to the pins 3-11 through a wire, the pin 11 of the first rotary blade SW1-1 is connected to the ninth contact point T9, and the pin 12 of the first rotary blade SW1-1 is connected to the tenth contact point T10.

[0045] The pin 1 of the second rotary blade SW1-2 is connected to the first measurement socket hole X2 of the measurement circuit. The pin 2 of the second rotary blade SW1-2 is connected to the pin 2 of the third rotary blade SW1-3 through a wire. The pin 3 of the second rotary blade SW1-2 is connected to the first contact point T1, the pin 4 is connected to the second contact point T2, the pin 5 is connected to the third contact point T3, the pin 6 is connected to the fourth contact point T4, the pin 7 is connected to the fifth contact point T5, the pin 8 is connected to the sixth contact point T6, the pin 9 is connected to the seventh contact point T7, the pin 10 is connected to the eighth contact point T8, the pin 11 is connected to the ninth contact point T9, and the pin 12 is connected to the tenth contact point T10.

[0046] The pin 1 of the third rotary blade SW1-3 is connected to the second measurement socket hole X3 of the measurement circuit. The pin 2 of the third rotary blade SW1-3 is connected to the pin 3 of the third rotary blade SW1-3 through another wire on the wire connecting to the pin 2 of the second rotary blade SW1-2. And the pin 3 of the third rotary blade SW1-3 is connected to the first contact point T1, the pin 4 is connected to the second contact point T2, the pin 5 is connected to the third contact point T3, and the pin 6 is connected to the fourth contact point T4. The pin 7 of the third rotary blade SW1-3 is connected to the pins 8-12 of the third rotary blade SW1-3 through a wire, and the pin 12 of the third rotary blade SW1-3 is connected to the fifth contact point T5.

[0047] On the box body 1 around the knob end of the rotary switch 2, a circle of numbers from 0 to 10 is evenly provided to indicate the gear position.

[0048] The working principle of the present utility model is as follows:

[0049] When it is necessary to simulate the formation resistance information, the electrode pony head is connected to the resistivity logging instrument:

[0050] When the knob end points to the number 0, the overall analog device is in the 0th gear. At this time, pin 1 and pin 2 of the third rotary blade SW1-3 are connected, pin 1 and pin 2 of the second rotary blade SW1-2 are connected, and pin 1 and pin 2 of the first rotary blade SW1-1 are connected. The current flows in from point A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measurement point N is connected to the first contact point T1 through the third rotary blade SW1-3, and the measurement point M is connected to the first contact point T1 through the second rotary blade SW1-2. The resistance between the corresponding measurement points is 0;

[0051] When the knob end points to the number 1, the overall analog device is in the 1st gear. At this time, pin 1 and pin 3 of the third rotary blade SW1-3 are connected, pin 1 and pin 3 of the second rotary blade SW1-2 are connected, and pin 1 and pin 3 of the first rotary blade SW1-1 are connected. The current flows in from A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measurement point N is connected to the first contact point T1 through the third rotary blade SW1-3, and the measurement point M is connected to the first contact point 'T1' through the second rotary blade SW1-2. The resistance between the corresponding measurement points is the first resistor R1 (0.01Ω);

[0052] When the knob end points to the number 2, the overall analog device is in the 2nd gear. At this time, pin 1 and pin 4 of the third rotary blade SW1-3 are connected, pin 1 and pin 4 of the second rotary blade SW1-2 are connected, and pin 1 and pin 4 of the first rotary blade SW1-1 are connected. The current flows in from A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measurement point N is connected to the second contact point T2 through the third rotary blade SW1-3, and the measurement point M is connected to the second contact point 'T2' through the second rotary blade SW1-2. The resistance between the measurement points is the second resistor R2 (0.05Ω);

[0053] When the knob end points to the number 3, the overall analog device is in the 3rd gear. At this time, pin 1 and pin 5 of the third rotary blade SW1-3 are connected, pin 1 and pin 5 of the second rotary blade SW1-2 are connected, and pin 1 and pin 5 of the first rotary blade SW1-1 are connected. The current flows in from A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measurement point N is connected to the third contact point T3 through the third rotary blade SW1-3, and the measurement point M is connected to the third contact point 'T3' through the second rotary blade SW1-2. The resistance between the measurement points is the third resistor R3 (0.2Ω);

[0054] When the knob end points to the number 4, the overall analog device is in the 4th gear. At this time, pin 1 and pin 6 of the third rotary blade SW1-3 are connected, pin 1 and pin 6 of the second rotary blade SW1-2 are connected, and pin 1 and pin 6 of the first rotary blade SW1-1 are connected. Current flows in from A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measurement point N is connected to the fourth contact point T4 through the third rotary blade SW1-3, the measurement point M is connected to the fourth contact point 'T4' through the second rotary blade SW1-2, and the resistance between the measurement points is the fourth resistor R4 (0.5 Ω).

[0055] When the knob end points to the number 5, the overall analog device is in the 5th gear. At this time, pin 1 and pin 7 of the third rotary blade SW1-3 are connected, pin 1 and pin 7 of the second rotary blade SW1-2 are connected, and pin 1 and pin 7 of the first rotary blade SW1-1 are connected. Current flows in from A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measurement point N is connected to the fifth contact point T5 through the third rotary blade SW1-3, the measurement point M is connected to the fifth contact point 'T5' through the second rotary blade SW1-2, and the resistance between the measurement points is the fifth resistor R5 (2 Ω).

[0056] When the knob end points to the number 6, the overall analog device is in the 6th gear. At this time, pin 1 and pin 8 of the third rotary blade SW1-3 are connected, pin 1 and pin 8 of the second rotary blade SW1-2 are connected, and pin 1 and pin 8 of the first rotary blade SW1-1 are connected. Current flows in from A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measurement point N is connected to the fifth contact point T5 through the third rotary blade SW1-3, the measurement point M is connected to the sixth contact point T6 through the second rotary blade SW1-2, and the resistance between the measurement points is the sum of the fifth resistor R5 and the sixth resistor R6 (5 Ω).

[0057] When the knob end points to the number 7, the overall analog device is in the 7th gear. At this time, pin 1 and pin 9 of the third rotary blade SW1-3 are connected, pin 1 and pin 9 of the second rotary blade SW1-2 are connected, and pin 1 and pin 9 of the first rotary blade SW1-1 are connected. Current flows in from A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measurement point N is connected to the fifth contact point T5 through the third rotary blade SW1-3, the measurement point M is connected to the seventh contact point T7 through the second rotary blade SW1-2, and the resistance between the measurement points is the sum of the fifth resistor R5, the sixth resistor R6 and the seventh resistor R7 (10 Ω).

[0058] When the knob end points to the number 8, the overall analog device is in the 8th gear. At this time, pin 1 and pin 10 of the third rotary blade SW1-3 are connected, pin 1 and pin 10 of the second rotary blade SW1-2 are connected, and pin 1 and pin 10 of the first rotary blade SW1-1 are connected. Current flows in from A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measuring point N is connected to the fifth contact point T5 through the third rotary blade SW1-3, and the measuring point M is connected to the eighth contact point T8 through the second rotary blade SW1-2. The resistance between the measuring points is the sum of the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, and two eighth resistors R8 (20Ω);

[0059] When the knob end points to the number 9, the overall analog device is in the 9th gear. At this time, pin 1 and pin 11 of the third rotary blade SW1-3 are connected, pin 1 and pin 11 of the second rotary blade SW1-2 are connected, and pin 1 and pin 11 of the first rotary blade SW1-1 are connected. Current flows in from A, passes through the first rotary blade SW1-1 to reach the ninth interface, flows through the resistor network and then flows out from point B. At this time, the measuring point N is connected to the fifth contact point T5 through the third rotary blade SW1-3, and the measuring point M is connected to the ninth interface through the second rotary blade SW1-2. The resistance between the measuring points is the sum of the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, two eighth resistors R8, and a ninth resistor R9 (50Ω);

[0060] When the knob end points to the number 10, the overall analog device is in the 10th gear. At this time, pin 1 and pin 12 of the third rotary blade SW1-3 are connected, pin 1 and pin 12 of the second rotary blade SW1-2 are connected, and pin 1 and pin 12 of the first rotary blade SW1-1 are connected. Current flows in from A, passes through the first rotary blade SW1-1 to reach the tenth contact point T10, flows through the resistor network and then flows out from point B. At this time, the measuring point N is connected to the fifth contact point T5 through the third rotary blade SW1-3, and the measuring point M is connected to the tenth interface through the second rotary blade SW1-2. The resistance between the measuring points is the sum of the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, two eighth resistors R8, a ninth resistor R9, and a tenth resistor R10 (250Ω).

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An analog device for formation resistance information, characterized in that It includes a box body (1). On the panel of the box body (1), there are socket hole groups for plugging in flexible wires. The socket hole groups include a first power supply socket hole (X1), a second power supply socket hole (X4), a first measurement socket hole (X2), and a second measurement socket hole (X3). A resistance network is arranged in the box body (1). The resistance network includes a first resistor (R1), a second resistor (R2), a third resistor (R3), a fourth resistor (R4), a fifth resistor (R5), a sixth resistor (R6), a seventh resistor (R7), two eighth resistors (R8), a first ninth resistor (R9), and a tenth resistor (R10) connected in series in sequence. One end of the first resistor (R1) is connected to the second power supply socket hole (X4). One end of the tenth resistor (R10) is connected to the first power supply socket hole (X1). A rotary switch (2) is also arranged in the box body (1), and the knob end of the rotary switch (2) is exposed to the outside. The rotary switch (2) is connected to the resistance network and is connected to the first power supply socket hole (X1), the first measurement socket hole (X2), and the second measurement socket hole (X3).

2. The simulation device for formation resistance information according to claim 1, characterized in that Both ends of the first resistor (R1) are respectively connected with a first contact point (T1) and a first contact point' (T1'). Both ends of the second resistor (R2) are respectively connected with a second contact point (T2) and a second contact point' (T2'). Both ends of the third resistor (R3) are respectively connected with a third contact point (T3) and a third contact point' (T3'). Both ends of the fourth resistor (R4) are respectively connected with a fourth contact point (T4) and a fourth contact point' (T4'). A fifth contact point (T5) is connected to the wire between the fourth resistor (R4) and the fifth resistor (R5). A fifth contact point' (T5') is connected to the wire between the fifth resistor (R5) and the sixth resistor (R6). A sixth contact point (T6) is connected between the sixth resistor (R6) and the seventh resistor (R7). A seventh contact point (T7) is connected between the seventh resistor (R7) and the eighth resistor (R8). An eighth contact point (T8) is connected between the eighth resistor (R8) and the ninth resistor (R9). A ninth contact point (T9) is connected between the ninth resistor (R9) and the tenth resistor (R10). The other end of the tenth resistor (R10) is connected to a tenth contact point (T10).

3. The simulation device for formation resistance information according to claim 2, wherein The rotary switch (2) is a three - knife twelve - position band switch. The rotary switch (2) includes a first rotary blade (SW1 - 1), a second rotary blade (SW1 - 2), and a third rotary blade (SW1 - 3).

4. The simulation device for formation resistance information according to claim 3, wherein The 1 - foot of the first rotary blade (SW1 - 1) is connected to the first power supply socket hole (X1) of the power supply circuit. The 2 - foot of the first rotary blade (SW1 - 1) is connected to the 3 - foot - 11 - foot through a wire. The 11 - foot of the first rotary blade (SW1 - 1) is connected to the ninth contact point (T9). The 12 - foot of the first rotary blade (SW1 - 1) is connected to the tenth contact point (T10).

5. The simulation device for formation resistance information according to claim 3, characterized in that The pin 1 of the second rotary blade (SW1-2) is connected to the first measurement socket hole (X2) of the measurement circuit. The pin 2 of the second rotary blade (SW1-2) is connected to the pin 2 of the third rotary blade (SW1-3) through a wire. The pin 3 of the second rotary blade (SW1-2) is connected to the first contact point '(T1') and the pin 4 is connected to the second contact point '(T2') and the pin 5 is connected to the third contact point '(T3') and the pin 6 is connected to the fourth contact point '(T4') and the pin 7 is connected to the fifth contact point '(T5') and the pin 8 is connected to the sixth contact point (T6) and the pin 9 is connected to the seventh contact point (T7) and the pin 10 is connected to the eighth contact point (T8) and the pin 11 is connected to the ninth contact point (T9) and the pin 12 is connected to the tenth contact point (T10).

6. The simulation device for formation resistance information according to claim 3, wherein The pin 1 of the third rotary blade (SW1-3) is connected to the second measurement socket hole (X3) of the measurement circuit. The pin 2 of the third rotary blade (SW1-3) is connected to the pin 3 of the third rotary blade (SW1-3) through another wire on the wire connecting to the pin 2 of the second rotary blade (SW1-2). And the pin 3 of the third rotary blade (SW1-3) is connected to the first contact point (T1) and the pin 4 is connected to the second contact point (T2) and the pin 5 is connected to the third contact point (T3) and the pin 6 is connected to the fourth contact point (T4). The pin 7 of the third rotary blade (SW1-3) is connected to the pins 8-12 of the third rotary blade (SW1-3) through a wire, and the pin 12 of the third rotary blade (SW1-3) is connected to the fifth contact point (T5).

7. The analog device for formation resistance information according to claim 1, characterized in that, There is a marked letter A engraved on the box body (1) at the first power supply socket hole (X1), a marked letter B engraved on the box body (1) at the second power supply socket hole (X4), a marked letter M engraved on the box body (1) at the first measurement socket hole (X2), and a marked letter N engraved on the box body (1) at the second measurement socket hole (X3).

8. The simulation device for formation resistivity information according to claim 1, characterized in that, A circle of numbers from 0 to 10 are evenly arranged around the knob end of the rotary switch (2) on the box body (1).

9. The simulation device for formation resistance information according to claim 1, characterized in that, The first resistor (R1), the second resistor (R2), the third resistor (R3) and the fourth resistor (R4) all use four-wire resistors.

10. The simulation device for formation resistivity information according to claim 1, characterized in that The fifth resistor (R5), the sixth resistor (R6), the seventh resistor (R7), the eighth resistor (R8), the ninth resistor (R9), and the tenth resistor (R10) all use EE1 / 10 resistors.

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