Remote electric control blowout preventer applied to test logging

Abstract

The invention relates to the technical field of test well logging control, in particular to a remote electric control blowout preventer applied to test well logging. The remote electric control blowout preventer comprises a ground control wireless transmission system and a wellhead electric control blowout preventer, the ground control wireless transmission system is connected with the wellhead electric control blowout preventer, the wellhead electric control blowout preventer is connected with a cable, and the ground control wireless transmission system controls the lowering speed and tightness of the cable through the wellhead electric control blowout preventer. The ground control wireless transmission system can carry out wired control and wireless remote control on the wellhead electric control blowout preventer. According to the remote electric control blowout preventer applied to the test well logging, the top gland and the overflow hole are controlled, so that the problems of sudden well fluid splashing and overlarge overflow quantity are solved, and the operation environmental protection property and the test full accuracy rate are guaranteed; and control transmission is carried out through a ground control wireless transmission system, so that the purpose of controlling within a safe distance by an operator is achieved, and the operation safety is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of test logging control, and in particular to a remote electric-controlled blowout prevention device used in test logging. Background Technology

[0002] The test logging blowout preventer is a safety protection device used to prevent high-temperature, high-pressure fluids in the well from spraying out of the wellhead during logging work, causing safety accidents and environmental pollution. In the application and testing and adjustment work, in order to ensure the accuracy of test data and improve the qualified rate of water injection, there are also extremely high requirements for the overflow and leakage of the blowout preventer.

[0003] The traditional blowout preventer has a simple structure and relies on packing seals, and has poor controllability over the overflow in the well, which is manifested as follows: First, it is impossible to control sudden well fluid splashing: During the test, due to the wear of the packing or the change of well pressure, the well fluid suddenly splashed from the pressure cap of the blowout preventer, and it could not be handled in time, causing large-scale environmental pollution; Second, there are safety risks during operation: When dealing with well fluid splashing accidents at the packing cap position, the operating staff needs to quickly climb the narrow operating platform at a height of 4 meters, tighten the packing cap with a pipe clamp, compress the internal packing to reduce well fluid splashing pollution, and there are safety risks such as falling from a high altitude and high-pressure water stabbing during the operation; Third, there is no overflow control mechanism that affects the full accuracy of the test: when the instrument is lowered 200m below the pipe string, there are problems of high pressure and difficulty in lowering. Traditional blowout preventers are equipped with a pressure-relief overflow channel, which reduces the pressure in the device cavity through overflow leakage and increases the speed of instrument lowering. However, since traditional blowout preventers do not have overflow control components, the overflow will flow out uncontrollably, and the maximum overflow volume will reach 100L / h, seriously affecting the accuracy of test data and the effect of water injection development. Fourth, it does not meet the current process and standard application requirements: At present, enterprises are promoting the wide application of the results of no-climbing blowout preventers in order to improve quality and efficiency and ensure safe production. However, no-climbing devices do not have climbing ladders and operating platforms. During the splashing of well fluid, employees cannot climb up to deal with it. At the same time, in the standardized on-site operation standards, enterprises do not allow operating employees to approach the wellhead within 15-20m to ensure the personal safety of operators. The main cause of the problem is analyzed through the above problems and phenomena. The tightness of the packing in the blowout preventer cannot be controlled. The packing is too tight or too loose, which directly affects the instrument's downward state and the size of the overflow volume.

[0004] Traditional blowout preventers are divided into two types: those with overflow channels and those without overflow channels. The sealing methods are basically the same. The process structure has not changed since the early days of the development of Daqing Oilfield. Most of the connections between the device and the top of the blowout preventer are threaded. The currently used high-efficiency test and adjustment blowout preventer has no overflow control function; it is impossible to achieve the function of remote control and adjustment of the packing tightness. Therefore, in view of the above shortcomings, a remote electric control blowout preventer for testing and logging is proposed. Summary of the invention

[0005] (1) Technical problem to be solved The present invention provides a remotely electrically controlled blowout preventer for testing well logging, so as to overcome the problems in the prior art that during the operation of overflow during logging and adjustment, it brings safety risks to operators, causes large-area environmental pollution, affects the accuracy of testing and water injection development, easily breaks expensive testing instruments and cables, and causes a large amount of economic losses in operation costs, affecting work efficiency.

[0006] (2) Technical solution To solve the above problems, the present invention provides a remotely electrically controlled blowout preventer for testing well logging, including: A ground control wireless transmission system and a wellhead electrically controlled blowout preventer. The ground control wireless transmission system is connected to the wellhead electrically controlled blowout preventer. The wellhead electrically controlled blowout preventer is connected to a cable. The ground control wireless transmission system controls the lowering speed and tightness of the cable through the wellhead electrically controlled blowout preventer. The ground control wireless transmission system can perform wired control and wireless remote control on the wellhead electrically controlled blowout preventer; The ground control wireless transmission system includes a ground control instrument, a transmission line, and a wireless device. The ground control instrument is connected to the wellhead electrically controlled blowout preventer through the transmission line, and the wireless device is connected to the wellhead electrically controlled blowout preventer through a signal; The wellhead electrically controlled blowout preventer includes a rotating vertical shaft. A compression packing, a planetary gear, and a power supply assembly are installed on the rotating vertical shaft. The outside of the rotating vertical shaft is a tightening gland. An overflow hole is installed on one side of the tightening gland. The overflow hole can be opened and closed. The lower side of the tightening gland is connected to a blowout prevention main body. A receiving control chip is embedded inside the blowout prevention main body. The lower side of the planetary gear is an axial motor, and the axial motor can rotate.

[0007] Preferably, the ground control instrument is provided with a control knob and a control box. The control knob can move forward and backward, and the tightening speed and tightening depth are adjusted by rotating the control knob; the control box includes a single-chip microcomputer and a circuit board. Programming programs are provided inside the single-chip microcomputer and the circuit board. A wireless receiving device is installed inside the control box to achieve remote control.

[0008] Preferably, the power supply mode of the wellhead electrically controlled blowout preventer is AC or DC. The power supply of the wellhead electrically controlled blowout preventer is a portable battery or a vehicle-mounted inverter power supply, and the power supply voltage of the wellhead electrically controlled blowout preventer does not exceed 24V.

[0009] Preferably, the ground control instrument is magnetically connected to the power supply assembly, and the power supply assembly controls the rotation of the axial motor by transmitting current.

[0010] Preferably, the wireless device includes control software and a wireless transmission line. The control software is connected to a receiving control chip through the wireless transmission line, and the receiving control chip is connected to a ground control instrument through a wireless signal.

[0011] Preferably, the wireless transmission line includes Bluetooth transmission or wireless network transmission, and both Bluetooth or the wireless network can achieve signal conduction.

[0012] Preferably, the inside of the screw-down gland is an overflow chamber. The vertically advancing shaft inside the overflow chamber is connected to a compression packing. A cavity is provided at the lower part of the blowout preventer body. The lower end of the vertically advancing shaft inside the cavity is connected to a planetary gear, and the tail end of the vertically advancing shaft is connected to a power supply assembly.

[0013] Preferably, the axial motor drives the planetary gear to rotate through rotation, and the planetary gear drives the vertically advancing shaft to move up and down.

[0014] Preferably, the compression packing is provided with a central channel, and the compression packing is compressed or released through the movement of the vertically advancing shaft.

[0015] Preferably, the overflow hole is provided with an overflow channel, and the movement of the vertically advancing shaft can open or close the overflow channel.

[0016] (III) Beneficial effects The remotely controlled electric blowout preventer device applied to test logging provided by the present invention realizes the prevention of sudden well fluid splashing and excessive overflow by real-time control of the screw-down gland and the overflow hole, ensuring the environmental protection of the operation and the accuracy rate of the test; through the control transmission of the ground control wireless transmission system, the purpose of controlling within the safe distance of the operator is realized, ensuring the safety of the operation. Description of the drawings

[0017] Figure 1 It is a schematic structural diagram of the remotely controlled electric blowout preventer device applied to test logging in an embodiment of the present invention; Figure 2 It is a schematic structural diagram of the wellhead electric blowout preventer device in an embodiment of the present invention.

[0018] Legend description: 1 - vertically advancing shaft; 2 - screw-down gland; 3 - overflow hole; 4 - compression packing; 5 - blowout preventer body; 6 - planetary gear; 7 - receiving control chip; 8 - axial motor; 9 - power supply assembly; 10 - transmission line; 11 - ground control instrument. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by "upper", "lower", "inner", "outer", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. The purpose is only to facilitate the description of the present invention and simplify the description, and does not indicate or imply that the components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] Figure 1 It is a schematic structural diagram of a remote electric control blowout preventer applied to test logging in an embodiment of the present invention. Figure 2 It is a schematic structural diagram of a wellhead electric control blowout preventer in an embodiment of the present invention. As Figure 1 and Figure 2 shown, the present invention provides a remote electric control blowout preventer applied to test logging, which specifically includes: A ground control wireless transmission system and a wellhead electric control blowout preventer. The ground control wireless transmission system is connected to the wellhead electric control blowout preventer. The wellhead electric control blowout preventer is connected to a cable. The ground control wireless transmission system controls the lowering speed and tightness of the cable through the wellhead electric control blowout preventer. The ground control wireless transmission system can perform wired control and wireless remote control on the wellhead electric control blowout preventer. The ground control wireless transmission system includes a ground control instrument 11, a transmission line 10, and a wireless device. The ground control instrument 11 is connected to the wellhead electric control blowout preventer through the transmission line 10. The wireless device is connected to the wellhead electric control blowout preventer through a signal. The wellhead electric control blowout preventer includes a rotating vertical shaft 1. A compression packing 4, a planetary gear 6, and a power supply assembly 9 are installed on the rotating vertical shaft 1. The outside of the rotating vertical shaft 1 is a tightening gland 2. An overflow hole 3 is installed on one side of the tightening gland 2. The overflow hole 3 can be opened and closed. The lower side of the tightening gland 2 is connected to a blowout prevention main body 5. A receiving control chip 7 is embedded inside the blowout prevention main body 5. The lower side of the planetary gear 6 is an axial motor 8, and the axial motor 8 can rotate.

[0022] In practical applications, the ground control instrument 11 is provided with a control knob and a control box. The control knob can move forward and backward, and the tightening speed and tightening depth are adjusted by rotating the control knob. The control box includes a single-chip microcomputer and a circuit board. A programming program is provided inside the single-chip microcomputer and the circuit board. A wireless receiving device is installed inside the control box to achieve remote control.

[0023] In this device, the material of the wellhead electric control blowout preventer is titanium alloy. Its maximum outer diameter is 50 mm, height is 150 mm, and weight is 2.5 kg. The power supply mode of the wellhead electric control blowout preventer is AC or DC, and its power supply is a portable battery or a vehicle-mounted inverter power supply. The power supply voltage of the wellhead electric control blowout preventer does not exceed 24V.

[0024] It should be noted that a first central hole is provided at the center of the tightening gland 2, and a second central hole is provided at the center of the blowout prevention main body 5. The screwing-in vertical shaft 1 passes through the first central hole and the second central hole in sequence. The cable can pass through all the central holes provided in the wellhead electric control blowout preventer. In addition, the packing gland 4, the planetary gear 6 and the power supply assembly 9 are all of annular structures. Therefore, the cable also passes through the packing gland 4, the planetary gear 6 and the power supply assembly 9 in sequence.

[0025] In practical applications, the ground control instrument 11 is magnetically connected to the power supply assembly 9. The power supply assembly 9 controls the rotation of the axial motor 8 by transmitting current. In addition, the wireless device includes control software and a wireless transmission line. The control software is connected to the receiving control chip 7 through the wireless transmission line, and the receiving control chip 7 is connected to the ground control instrument 11 through a wireless signal.

[0026] It should be noted that the wireless transmission line includes Bluetooth transmission or wireless network transmission. Both Bluetooth and wireless network can achieve signal conduction. In practical applications, the control software is mostly a mobile APP software.

[0027] In this device, the inside of the tightening gland 2 is an overflow cavity. The screwing-in vertical shaft inside the overflow cavity is connected to the packing gland 4. A cavity is provided at the lower part of the blowout prevention main body 5. The lower end of the screwing-in vertical shaft 1 inside the cavity is connected to the planetary gear 6, and the tail end of the screwing-in vertical shaft 1 is connected to the power supply assembly 9.

[0028] In practical applications, the axial motor 8 drives the planetary gear 6 to rotate through rotation. The planetary gear 6 drives the screwing-in vertical shaft 1 to move up and down. The packing gland 4 is provided with a central channel. The packing gland 4 is compressed or released through the movement of the screwing-in vertical shaft 1. The overflow hole 3 is provided with an overflow channel. The movement of the screwing-in vertical shaft 1 can open or close the overflow channel.

[0029] In this device, the axial motor 8 is installed inside the blowout prevention main body 5. The axial motor 8 and the planetary gear 6 are used to cooperate with the displacement of the screwing-in vertical shaft 1 to compress or release the packing gland 4 at the tightening gland 1 at the top; the wellhead electric control blowout preventer adopts magnetic adsorption power supply, and the power supply is a safe voltage of 24V, with two modes of DC and AC; the overflow hole 3 reserves an overflow channel, and according to the on-site operation situation, the channel opening can be closed by the upward or downward displacement of the screwing-in vertical shaft 1; the ground control instrument 11 uses signal transmission and adopts two control methods: ground control and remote control.

[0030] It should be noted that the technical keys of this device are the direct supply motor overload protection function, remote signal transmission function, flow sensing self-regulation function, and the opening, closing and sealing functions of the overflow hole. This device integrates the power drive device, remote control system with the structure and functions of the blowout preventer device, transforming from the traditional manual passive sealing to real-time electric control active sealing, meeting the index requirements of instrument lowering and overflow sealing. This device has four technical key indicators, among which, the ground inverter DC power supply is ≤120V; the motor torque is ≥15N·m; single-core coding and DC two-way carrier are adopted; the resistance is ≤85Ω / km.

[0031] In actual application, the operation safety range of this device is 15 - 30 meters away from the wellhead, and it is remotely controlled through the ground control instrument 11 or wireless transmission line, meeting the operation distance requirement, avoiding the safety risks of traditional high-altitude climbing operations, ensuring the timeliness of real-time flow control, and preventing the expansion of the pollution area; this device uses a portable DC battery to supply power to the axial motor 8 inside the device, drives the internal gear screw through the motor, compresses and releases the packing, realizes the adjustable tightness of the packing in the bin, solves the problem that it is difficult to adjust the tightness of the cable during normal lowering and lifting, and achieves the purpose of sealing the straight spray of well fluid; this device uses a 24V DC battery for power supply and magnetic contact power supply, ensuring the rapid application during the application process of the power supply system of the blowout preventer device, and effectively ensuring the operation safety and stability; this device realizes the purpose of controlling the size of the overflow amount through the overflow cut-off function, can achieve instantaneous closing, and can open or block the overflow port as needed; it avoids the well fluid spray caused by the packing wear of the device gland and the change of the well pressure.

[0032] In addition, this device effectively increases the service life of the cable by continuously providing electric control assistance for lowering and improving the centering structure of the device, reducing the damage to the cable caused by the traditional method, and preventing the occurrence of operation problems caused by the broken strands and broken wires of the cable.

[0033] Currently, the main structure of the latest generation of blowout preventer device applied in the testing industry includes packing gland, blowout preventer body, two-stage isolation inner cavity, resin packing, pressure adding hole, drain hole, packing bin and pressure relief baffle, etc. The application method of the traditional blowout preventer device is that a steel wire or cable passes through the central holes of the blowout preventer device and the packing group, and is installed on the top of the blowout preventer pipe through screw threads; by adjusting the tightness of the blowout preventer device gland, the state of the top well fluid spray and the instrument lowering speed is controlled.

[0034] Traditional dredging devices utilize their structural characteristics to perform a certain function of preventing well fluid from splashing and ensuring the lowering of the instrument cable. They are standard accessories for testing. Currently, various blowout preventers used in oilfield injection wells do not have the functions of remote electric control, real-time plugging of well fluid splashing, and adjustment of the overflow volume. Therefore, during the operation of measuring and adjusting the overflow problem, it brings safety risks to operators, causes large-scale environmental pollution, affects the accuracy of testing and water injection development, easily breaks expensive testing instruments and cables, and causes a large amount of economic losses in operation costs, affecting work efficiency. In order to further improve the controllability of the packing adjustment of the testing blowout preventer, avoid the safety risks of personnel climbing heights for operation, and achieve the purpose of safe operation and environmental protection operation, it is necessary to develop a remotely controllable blowout preventer.

[0035] In practical applications, about 130 wells / times have been put into production and application. The sealing rate of the packing cap has increased from 40% in the past to 90%, the overflow volume has decreased from 100 liters per hour to 10 liters per hour, and the operation time for controlling the overflow has been shortened from 5 minutes in the past to 1 minute; effectively avoiding environmental pollution and safety risks, and improving the accuracy rate of testing. The following specifically describes the implementation process of this remotely controlled electric blowout preventer applied to well logging: In this embodiment, the connection method is that the wire or cable passes through the blowout preventer and the packing group, and is connected to the measuring and adjusting instrument through a screw thread, and is installed on the top of the blowout preventer pipe.

[0036] It should be noted that in practical applications, a Ø3.5 steel armored or wire armored cable is used to penetrate the wellhead electric blowout preventer and connect to the measuring and adjusting instrument; the instrument is sent into the blowout preventer pipe, and the wellhead electric blowout preventer is installed at the pipe coupling at the top of the blowout preventer pipe for threaded rotation connection; the overflow hole 3 outside the device is connected to the overflow pipe to the liquid discharge cylinder; the ground control instrument 11 is connected to the wellhead electric blowout preventer through the transmission line 10, and the connection method is magnetic attraction, and the output voltage is 36V DC.

[0037] In practical applications, the application method is through remote control. The axial motor 8 drives the planetary gear 6, so that the advancing vertical shaft 1 moves up and down, compresses the pressing packing 4 to increase the wrapping ability, and realizes the function of controlling the flow rate of the overflow channel; adjusts the tightness of the gland of the blowout preventer to control the state of the top well fluid splashing and the instrument lowering speed.

[0038] It should be noted that according to the overflow state, the surface control instrument 11 realizes the pressing action by rotating the control knob forward or the relaxation action by rotating it backward; when the electric control overflow device receives the command signal, the axial motor 8 operates and drives the planetary gear 6 to increase the torque; the planetary gear 6 acts on the pressing and advancing vertical shaft 1 through the axial helical gear, driving the advancing vertical shaft 1 to compress or relax the packing gland 4 in the electric control device. During the upward movement of the advancing vertical shaft 1, the packing gland 4 will squeeze and seal the tightening gland 2, ensuring the control effect of the upper liquid splash. At the same time during the upward movement, due to the compression and expansion of the packing gland 4, the overflow hole 3 will also be blocked, achieving the purpose of overflow control.

[0039] In this embodiment, the power supply method is to supply 24V safety voltage by a portable battery or an in-vehicle inverter power supply, and a magnetic adsorption connector is adopted, which increases the sealing performance and safety.

[0040] In practical applications, there are two control methods, namely remote data connection control through a wireless transmission line; the surface control instrument 11 can achieve wired control, and the control knob can move forward and backward, and the tightening speed and tightening depth can be adjusted as needed; the single-chip microcomputer and circuit board of the control box are improved by software programming. By installing a wireless receiving device in the control box, remote control can be achieved by receiving wireless signals through the control software.

[0041] The working principle of this remotely controlled electric blowout preventer applied to test logging will be specifically described below: In this embodiment, the power supply method is to connect to an external DC power cord and contact the main body in a magnetic adsorption manner, and the power supply component 9 supplies AC or DC power; through remote mobile phone Bluetooth connection, an operation instruction is sent from the APP; after the internal receiving control chip 7 receives the instruction, the axial motor 8 inside the blowout preventer main body 5 rotates forward and backward. Under the speed change and force increasing action of the planetary gear 6, the advancing vertical shaft 1 moves up and down, and the tightening gland 2 and the advancing vertical shaft 1 are integrated to perform relaxation and tightening synchronously, causing the internal rubber packing gland 4 to be compressed and deformed, the outside of the packing expands, and the inner hole diameter shrinks, achieving the purpose of blocking the overflow hole 3 and the central channel of the packing gland.

[0042] In practical applications, the blowout preventer can control the overflow, and the overflow discharge blocking rate reaches 93%; it has the function of preventing the cable from being offset and worn, and the utilization rate of the test cable is increased by 35%; magnetic connection, no exposed cables, and the waterproof and insulation sealing rate is 100%; made of titanium alloy, light in weight and sufficient in strength, and the tensile strength of the connection part reaches 20KN.

[0043] In practical applications, this achievement is mainly applied to cable testing in domestic oilfields. Due to its common problems, it has a wide range of applications. In addition, in terms of economic benefits, according to the "Environmental Protection Penalty Regulations", enterprises can avoid economic losses of 200,000 yuan per year caused by overflow environmental pollution; improve work efficiency by 30%, reduce operation man-hours; the safety benefit cost calculation can create benefits of 200,000 yuan per year; increase the service life of the cable by 1 / 3. Calculated at 0.8 million yuan per reel of cable, 640,000 yuan can be saved per year in 80 teams, with a total of 1.14 million yuan.

[0044] The remote electric control blowout preventer provided by the present invention for well logging testing can change the closed operation mode of sudden well fluid splashing at the gland of the traditional blowout preventer, and solve the problems of high-altitude falling, object hitting, and high-pressure water stabbing in the process of entering the safety risk area; in the case of sudden well fluid splashing, through ground remote control, it can effectively and real-time control the overflow, avoiding the problem of causing large-area environmental pollution; through the research and development of the structural reorganization of the device overflow control component, matching the overflow channel parameters of the blowout preventer, the size of the overflow can be controlled, thereby reducing the impact of overflow loss on the accuracy of the test; reducing the workload of waste liquid treatment caused by overflow discharge, improving work efficiency; matching the application of new technologies and processes such as the current non-climbing blowout preventer pipe, and applying Bluetooth data transmission for remote control, achieving the purpose of improving quality and efficiency.

[0045] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention shall be defined by the claims.

Claims

1. A remote electric control blowout prevention device used for testing well logging, characterized in that: include: A ground control wireless transmission system and a wellhead electric control blowout preventer, wherein the ground control wireless transmission system is connected to the wellhead electric control blowout preventer, and the wellhead electric control blowout preventer is connected to a cable. The ground control wireless transmission system controls the lowering speed and tightness of the cable through the wellhead electric control blowout preventer, and the ground control wireless transmission system can perform wired control and wireless remote control on the wellhead electric control blowout preventer; The ground control wireless transmission system comprises a ground control instrument (11), a transmission line (10) and a wireless device, wherein the ground control instrument (11) is connected to the wellhead electronically controlled blowout preventer via the transmission line (10), and the wireless device is connected to the wellhead electronically controlled blowout preventer via a signal; The wellhead electric control blowout preventer comprises a screw-in vertical shaft (1), on which a compression packing (4), a planetary gear (6) and a power supply assembly (9) are mounted, the outer side of the screw-in vertical shaft (1) is a screw-in gland (2), one side of the screw-in gland (2) is mounted with an overflow hole (3), the overflow hole (3) can be opened and closed, the lower side of the screw-in gland (2) is connected to a blowout preventer body (5), the interior of the blowout preventer body (5) is inlaid with a receiving control chip (7), and the lower side of the planetary gear (6) is an axial motor (8), and the axial motor (8) can rotate.

2. The remote electric control blowout prevention device for testing well logging according to claim 1 is characterized in that: The ground control instrument (11) is provided with a control knob and a control box. The control knob can move forward and backward, and the tightening speed and tightening depth are adjusted by rotating the control knob. The control box includes a single-chip microcomputer and a circuit board. The single-chip microcomputer and the circuit board are provided with programming programs. A wireless receiving device is installed inside the control box to realize remote control.

3. The remote electric control blowout prevention device for testing well logging according to claim 1 is characterized in that: The wellhead electronically controlled blowout preventer is powered by AC or DC, the power supply of the wellhead electronically controlled blowout preventer is a portable battery or a vehicle-mounted inverter power supply, and the power supply voltage of the wellhead electronically controlled blowout preventer does not exceed 24V.

4. The remote electric control blowout prevention device for testing well logging according to claim 1, characterized in that: The ground control instrument (11) is connected to the power supply component (9) by magnetic attraction, and the power supply component (9) controls the rotation of the axial motor (8) by transmitting current.

5. The remote electric control blowout prevention device for testing and logging according to claim 1 is characterized in that: The wireless device comprises control software and a wireless transmission line, the control software is connected to a receiving control chip (7) via the wireless transmission line, and the receiving control chip (7) is connected to a ground control instrument (11) via a wireless signal.

6. The remote electric control blowout prevention device for testing well logging according to claim 5, characterized in that: The wireless transmission line includes Bluetooth transmission or wireless network transmission, and the Bluetooth or wireless network can achieve signal conduction.

7. The remote electric control blowout prevention device for testing and logging according to claim 1 is characterized in that: The interior of the tightening gland (2) is an overflow chamber, the screw-in vertical shaft (1) inside the overflow chamber is connected to the compression packing (4), a cavity is provided at the lower part of the blowout prevention body (5), the lower end of the screw-in vertical shaft (1) inside the cavity is connected to the planetary gear (6), and the tail end of the screw-in vertical shaft (1) is connected to the power supply assembly (9).

8. The remote electric control blowout prevention device for testing well logging according to claim 1, characterized in that: The axial motor (8) drives the planetary gear (6) to rotate by rotating, and the planetary gear (6) drives the screw-in vertical shaft (1) to move up and down.

9. The remote electric control blowout prevention device for testing well logging according to claim 8, characterized in that: The compression packing (4) is provided with a central channel, and the compression packing (4) is compressed or released by screwing into the vertical shaft (1).

10. The remote electric control blowout prevention device for testing well logging according to claim 8, characterized in that: The overflow hole (3) is provided with an overflow channel, and the movement of the screw-in vertical shaft (1) can open or close the overflow channel.

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