A storage-type logging instrument well control emergency suspension cap and its usage method

Abstract

This invention discloses a storage-type well control emergency suspension cap for logging instruments and its usage method, belonging to the field of oil well logging blowout preventer tools. The emergency suspension cap includes: a suspension part comprising a column with grooves on its sidewalls, a blind hole inside the suspension part, and a cylindrical structure extending outward from the opening of the blind hole, forming a protective cap with the blind hole and the cylindrical structure. The opening of the protective cap has internal threads, and the protective cap is used to accommodate the upper part of the logging instrument and is threadedly connected to the logging instrument; a limiting part, disposed within the protective cap and connected to the inner wall of the protective cap, the limiting part having a pin structure located on the inner wall of the protective cap, used to engage with the logging instrument housed within the protective cap to prevent rotation of the logging instrument; and a lifting part, which is elongated and has a pull hole, connected to the end of the suspension part away from the cylindrical structure. The emergency suspension cap provided by this invention allows the blowout preventer tool to be connected to the protective sleeve for well shut-in and treatment work without removing the logging instrument.

Description

Technical Field

[0001] This invention belongs to the technical field of oil well logging blowout prevention tools, specifically relating to a storage-type well control emergency suspension cap for well logging instruments and its usage method. Background Technology

[0002] Storage logging is an important logging technique in the oilfield. It involves connecting and suspending the logging instrument above the water inlet of the casing. After the instrument is lowered to the bottom of the well using drill strings, the mud pump is activated, and the flow of mud propels the instrument out of the casing, where it remains suspended at the bottom. The logging is then completed after tripping out of the well, and the collected data is stored inside the instrument. The data is then read and decoded after tripping out of the well. During on-site storage logging operations, wellhead removal and installation each take approximately 4 hours, with approximately 3 hours each for removing and installing the casing and approximately 1 hour for connecting the logging instrument. During these times, well control incidents may occur.

[0003] In existing technology, the emergency handling method for well control during the disconnection and reconnection of storage-type logging equipment is as follows: Before connection, the drilling team pre-connects the adapter and blowout preventer (BOP) to the protective casing and places them in an easily accessible location. After the protective casing is connected, if a well control hazard such as a blowout occurs during the connection of the logging instruments, all instruments inside the protective casing are immediately retrieved using a pneumatic winch on the drilling platform (because the logging instruments cannot be housed within the protective casing). Then, the BOP is connected to the protective casing, and the drilling team shuts in the well and handles the situation as needed. Therefore, if a blowout occurs during instrument connection, only the logging instruments can be retrieved; otherwise, the drilling team's BOP cannot be connected. However, the total length of the storage-type logging instrument is about 50m. If an overflow occurs when it is connected to a depth of more than 25m, the pneumatic winch cannot retrieve all the instruments inside the waterhole of the protective sleeve at once. It must be retrieved in at least two separate trips, which is not conducive to rapid well shut-in and poses a well control safety hazard. Therefore, a device is needed to solve the problem of long time consumption and inability to quickly shut in the well when the logging instrument cannot be placed in the protective sleeve during the lifting and lowering process in the event of a well control emergency. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention aims to provide a storage-type well control emergency suspension cap for logging instruments, which solves the problem of long time consumption and inability to quickly shut down the well when the logging instrument cannot be placed in the protective sleeve during the lifting and lowering process in the event of a well control emergency.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] This invention discloses a storage-type logging instrument well control emergency suspension cap, comprising:

[0007] The suspension part includes a column with grooves on its sidewalls, and a blind hole is provided inside the suspension part. A cylindrical structure extends outward from the opening of the blind hole. The outer diameter of the column is larger than the outer diameter of the cylindrical structure. The blind hole and the cylindrical structure form a protective cap. The opening of the protective cap is provided with an internal thread for accommodating one end of the logging instrument and for threaded connection with the logging instrument.

[0008] The limiting part, which has a pin structure, is set in the protective cap and connected to the inner wall of the protective cap; the limiting part is used to connect with the logging instrument housed in the protective cap to prevent the logging instrument from rotating.

[0009] The lifting part is mainly composed of a flat sheet and has a pull hole. The lifting part is connected to the end of the suspension part away from the cylindrical structure for lifting.

[0010] Preferably, the column of the suspension part is a cylinder, and a number of grooves are evenly spaced on the side wall of the column, with the grooves arranged along the length of the column.

[0011] More preferably, the groove is an arc-shaped groove.

[0012] Preferably, the limiting part includes a sleeve and a first limiting claw and a second limiting claw located at both ends of the sleeve; the sleeve is disposed inside the protective cap, and the outer wall of the sleeve cooperates with the inner wall of the protective cap; the inner wall of the protective cap is provided with a slot, and the first limiting claw is inserted into the slot; the second limiting claw extends toward the opening of the protective cap and is provided with a pin structure against the inner wall of the protective cap.

[0013] More preferably, the diameter of the blind hole is smaller than the inner diameter of the cylindrical structure, so that a stepped hole is formed inside the protective cap, and the slot is formed on the inner wall of the blind hole, extending from the step of the stepped hole into the depth of the blind hole.

[0014] Preferably, the outer wall of the cylindrical structure is provided with an elongated groove, which is arranged along the length of the cylindrical structure and is positioned corresponding to the pin structure inside the protective cap, serving as a guide.

[0015] Preferably, a stud is formed inside the end of the suspension part near the lifting part, and a threaded hole is formed at one end of the lifting part. The suspension part and the lifting part are threadedly connected through the threaded hole, and the suspension part and the lifting part are welded at the connection interface.

[0016] Preferably, the end connecting the lifting part and the suspension part is cylindrical, and an operating hole is provided on the side wall of the lifting part. The operating hole is used to insert a rotating tool, and the lifting part can rotate with the suspension part under the drive of the rotating tool.

[0017] More preferably, the number of operating holes is four, and the four operating holes are evenly spaced around the side wall of the lifting part.

[0018] Preferably, the end of the lifting part away from the suspension part is configured as a conical structure with a curved top, and an elongated through hole is provided between the operating hole and the conical structure of the lifting part to form a pull hole.

[0019] This invention also discloses a method for using the aforementioned storage-type logging instrument well control emergency suspension cap. In the event of a well control emergency, the logging instrument is first lifted, and the emergency suspension cap is connected to the logging instrument. The upper part of the logging instrument is housed in the protective cap by inserting the limiting part into the logging instrument. The lifting part drives the suspension part to rotate relative to the logging instrument, aligning the pin and thus connecting the emergency suspension cap to the logging instrument, achieving sealing and fixing of the upper part of the logging instrument. After the emergency suspension cap is connected to the logging instrument, the logging instrument is quickly lowered by connecting the U-shaped ring and the sling to the pull hole in the emergency suspension cap. The logging instrument is suspended in the lower section of the protective sleeve, and then the blowout preventer is connected to the protective sleeve to begin the subsequent logging operation procedure.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention provides a storage-type well control emergency suspension cap for logging instruments. The column sidewall of the suspension part has a groove, which increases the channel area for mud circulation, reduces circulation pump pressure, and meets the needs of well shut-in and well control operations. The outer diameter of the column is larger than the outer diameter of the cylindrical structure, allowing the connection between the suspension part of the emergency suspension cap and the cylindrical structure to be engaged with the adjusting inner diameter ring inside the protective sleeve, thus allowing the logging instrument to sit within the protective sleeve. The protective cap can accommodate the logging instrument and, after connection, ensures a seal on the upper part of the instrument, preventing mud from entering. The limiting part prevents the logging instrument from rotating and detaching from the protective cap, causing the instrument to fall into the well. The lifting part can drive the suspension part to rotate, thereby connecting the suspension cap and the logging instrument during installation, and aligning the limiting claw with the instrument slot. This emergency suspension cap houses the top of the logging instrument and connects it to the instrument, protecting the upper part of the instrument from potential breakage caused by mud scouring the upper part of the instrument during prolonged pumping and well control. The logging instrument is then suspended in the lower section of the protective sleeve, allowing the blowout preventer to be directly connected to the protective sleeve without removing the logging instrument, enabling rapid well shut-in and handling, thus shortening well control emergency response time.

[0022] Furthermore, the addition of multiple grooves increases the channel area for mud circulation, reduces circulation pump pressure, and minimizes the impact of mud and well fluid on storage logging instruments and well control emergency suspension caps.

[0023] Furthermore, the pin structure ensures the secure fixation of the logging instrument.

[0024] Furthermore, the combination of the elongated groove and the pin structure allows the user to determine the exact position of the pin structure in the protective cap based on the position of the elongated groove, so as to install logging instruments.

[0025] Furthermore, since the lifting part needs to be made relatively long to meet the usage requirements, it is not convenient to make the suspension part and the lifting part into a single structure. Therefore, in order for the two to be connected and securely connected, a threaded connection and welding method is adopted.

[0026] Furthermore, the operating hole is connected to a rotating tool, which allows the lifting part to rotate along with the suspension part, thereby connecting the suspension cap and the logging instrument during installation, and aligning the limiting claw with the long slot.

[0027] Furthermore, the pull holes allow the U-shaped ring and sling to be connected to the emergency suspension cap, enabling the emergency suspension cap to be raised and lowered.

[0028] This invention provides a method for using a storage-type well control emergency suspension cap for logging instruments. The cap uses a limiting part to connect with the logging instrument, thus accommodating and securing it. A lifting part rotates the suspension part, allowing the logging instrument to be housed and connected within the protective cap, and sealing the upper part of the instrument. This method is simple and easy to implement, with low manufacturing costs. It prevents the logging instrument from falling into the well while simultaneously connecting blowout preventers, eliminating the need to completely retrieve the logging instrument and saving time in responding to well control emergencies. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a storage-type logging instrument well control emergency suspension cap according to the present invention;

[0030] Figure 2 This is a partial cross-sectional structural schematic diagram of a well control emergency suspension cap for a storage-type logging instrument according to the present invention;

[0031] Figure 3 This is a schematic cross-sectional view of a well control emergency suspension cap for a storage logging instrument without a limiting part, according to the present invention.

[0032] Figure 4 for Figure 3 Enlarged view of the AA region;

[0033] Figure 5 This is a schematic diagram of the structure of a storage-type logging instrument well control emergency suspension cap according to the present invention;

[0034] Figure 6 for Figure 5 A magnified view of the BB area.

[0035] Wherein: 1-Suspension part; 11-Groove; 12-Blind hole; 13-Cylindrical structure; 131-Long groove; 14-Protective cap; 2-Limiting part; 21-Sleeve body; 22-First limiting claw; 23-Second limiting claw; 3-Lifting part; 31-Pull hole; 32-Operating hole. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "comprising" and "having" and any variations thereof in this invention are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0038] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof in the above description of exemplary embodiments of the invention. However, this disclosed apparatus should not be construed as reflecting an intention that the claimed invention requires more features than expressly recited in each claim. Rather, as reflected in the claims, inventive aspects lie in fewer than all features of a single disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0039] Those skilled in the art will understand that the components in the apparatus of the embodiments can be adaptively changed and disposed in one or more apparatuses different from that embodiment. Components in the embodiments can be combined into a single component, and furthermore, they can be divided into multiple sub-components. Except that at least some of such features are mutually exclusive, any combination can be employed to combine all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all components of any apparatus so disclosed. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature serving the same, equivalent, or similar purpose.

[0040] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination. Various component embodiments of the invention can be implemented in hardware or in combinations thereof.

[0041] The present invention will now be described in further detail with reference to the accompanying drawings:

[0042] This invention provides a storage-type well logging instrument well control emergency suspension cap, such as... Figures 1-6 As shown, the device includes a suspension section 1, which is a cylindrical structure. The outer diameter of the suspension section 1 (the diameter at the location where it sits on the lower section of the upper protective sleeve) is smaller than the diameter of the water eye at the top of the lower section of the upper protective sleeve, meaning the outer diameter of the suspension section 1 is larger than the inner diameter of the inner diameter adjustment ring inside the protective sleeve. Several grooves 11 for mud passage are evenly spaced on the side wall of the suspension section 1. These grooves 11 are arc-shaped grooves arranged along the length of the cylinder of the suspension section 1. The length of the grooves 11 is the same as the length of the suspension section 1. The number and size of the grooves are set according to the usage requirements. The grooves 11 allow mud to pass through, increasing the channel area for mud circulation, reducing the circulation pump pressure, and reducing the impact of mud and well fluid on the storage logging instrument and the well control emergency suspension cap, thus meeting the well shut-in and well control conditions of the well team.

[0043] The suspension part 1 has a blind hole 12 inside, and a cylindrical structure 13 extends outward from the opening of the blind hole 12. The cylindrical structure 13 is integrally formed with the suspension part 1. The outer diameter of the cylindrical structure 13 is smaller than the inner diameter of the inner diameter adjustment ring inside the protective sleeve. Since the outer diameter of the suspension part 1 is larger than the inner diameter of the inner diameter adjustment ring inside the protective sleeve, and the outer diameters of both the cylindrical structure 13 and the logging instrument are smaller than the inner diameter of the inner diameter adjustment ring inside the protective sleeve, the connection between the suspension part 1 and the cylindrical structure 13 can be locked at the inner diameter adjustment ring inside the protective sleeve, allowing the logging instrument connected to the emergency suspension cap to sit inside the protective sleeve. The blind hole 12 and the cylindrical structure 13 together form a protective cap 14. The diameter of the blind hole 12 is smaller than the inner diameter of the cylindrical structure 13, creating a stepped hole inside the protective cap 14. Figure 2As shown, a limiting part 2 with a pin structure is fixedly connected to the inner wall of the protective cap 14. The limiting part 2 is used to connect with the logging instrument housed in the protective cap 14 to prevent the logging instrument from rotating or falling off. The limiting part 2 includes a sleeve 21 and a first limiting claw 22 and a second limiting claw 23 located at both ends of the sleeve 21. The sleeve 21 is disposed inside the protective cap 14, and its outer wall cooperates with the inner wall of the protective cap 14. A slot is also provided on the inner wall of the protective cap 14. The slot is formed on the inner wall of the blind hole 12 and extends from the step of the stepped hole to the depth of the blind hole 12. The first limiting claw 22 is inserted into the slot, and the second limiting claw 23 extends toward the opening of the protective cap 14 and is disposed against the inner wall of the protective cap 14 to form a pin structure. The end of the sleeve 21 closest to the outer wall is provided with a serrated groove to increase friction when it mates with the inner wall of the protective cap 14. The first limiting claw 22 and the second limiting claw 23 can be symmetrically or asymmetrically arranged relative to the sleeve 21. The number of the first limiting claw 22 can be one, two, or more, and the number of the second limiting claw 23 is preferably one. Both the first limiting claw 22 and the second limiting claw 23 can be strip structures with a rectangular cross-section. The opening inside the cylindrical structure 13 is provided with an internal thread for threaded connection with the logging instrument, and the end where the internal thread is located can accommodate the logging instrument. The outer wall of the cylindrical structure 13 is provided with a long groove 131 that serves as a guide. The long groove 131 is arranged along the length of the cylindrical structure 13 and its position corresponds to the pin structure inside the protective cap 14. The user can determine the exact position of the pin structure in the protective cap 14 based on the position of the long groove 131 in order to install the logging instrument. The long groove 131 can be replaced by other structures that can serve as marking and guiding functions, and this invention is not limited thereto.

[0044] The end of the suspension part 1 away from the cylindrical structure 13 is welded with a lifting part 3 for pulling. The end of the suspension part 1 near the lifting part 3 has a stud structure inside. The suspension part 1 is connected to the screw hole inside the lifting part 3 through the stud structure. The double connection can make the connection more stable. In order to prevent detachment during use, the end of the suspension part 1 connected to the lifting part 3 can also be provided with a chamfer to reduce mud impact. The end of the lifting part 3 connected to the suspension part 1 is cylindrical. Four operating holes 32 are evenly spaced around the side wall of the cylindrical part. The operating holes 32 are used to insert the rotating tool. Under the drive of the rotating tool, the lifting part 3 can rotate the suspension part 1, so that the suspension cap and logging instrument are connected during the installation process, and the limiting claw and the long groove 131 are docked. The operating holes 32 can be set as through holes or blind holes, and their shape can be circular, rectangular or other shapes that can be used with rotating tools. The main body of the lifting section 3 is flat and has a pull hole 31 formed by an elongated through hole along its length. The pull hole 31 can be set into a suitable shape as needed for lifting operations. The end of the lifting section 3 away from the suspension section 1 is a conical structure with an arcuate surface. The pull hole 31 is located between the operating hole 32 and the conical structure of the lifting section 3. A connecting U-shaped ring can pass through the pull hole 31, and the U-shaped ring and the sling can be connected to the emergency suspension cap through the pull hole 31. In the event of a well control emergency, the user can use the hoisting equipment and sling of the well team to connect and lift the entire logging instrument string, which will then be lifted and placed inside the protective sleeve.

[0045] In order to have certain strength and corrosion resistance, the suspension part 1, the limiting part 2 and the lifting part 3 of the emergency suspension helmet of the present invention are preferably made of corrosion-resistant metal materials, such as stainless steel, and should meet the performance requirements of tensile strength ≥5t, compressive strength ≥5t and weight ≤20kg.

[0046] This invention provides a method for using a storage-type logging instrument well control emergency suspension cap. In the event of a well control emergency, the logging instrument is first lifted, and the emergency suspension cap is connected to the logging instrument. The exact position of the pin structure in the protective cap 14 is determined based on the position of the long groove 131 in the emergency suspension cap. The limiting part 2 in the emergency suspension cap is inserted into the logging instrument, and the top of the logging instrument is housed in the protective cap 14 of the emergency suspension cap. A rotating tool is inserted through the operating hole 32 in the emergency suspension cap, causing the lifting part 3 to drive the suspension part 1 to rotate relative to the logging instrument, aligning the pin, thereby connecting the emergency suspension cap to the logging instrument and achieving sealing and fixation of the upper part of the logging instrument. After the emergency suspension cap is connected to the logging instrument, the logging instrument is quickly lowered through the connection of the U-shaped ring and sling to the pull hole 31 in the emergency suspension cap. The logging instrument is then suspended in the lower section of the protective sleeve by the emergency suspension cap. The blowout preventer is then connected to the protective sleeve, and subsequent logging operations begin.

[0047] The specific steps are as follows:

[0048] If a well control hazard is encountered during the lowering of the logging instrument, first lift the logging instrument and connect it to the emergency suspension cap. The exact position of the pin structure in the protective cap 14 is determined based on the position of the long groove 131 in the emergency suspension cap. The upper part of the logging instrument is housed in the protective cap 14 of the emergency suspension cap by connecting the limiting part 2 in the emergency suspension cap. The rotating tool is connected through the operating hole 32 in the emergency suspension cap, so that the lifting part 3 drives the suspension part 1 to rotate relative to the logging instrument, aligning the pin and connecting the emergency suspension cap with the logging instrument, thus sealing and fixing the upper part of the logging instrument. After the emergency suspension cap is connected to the logging instrument, the logging instrument is quickly lowered by connecting the U-shaped ring and the sling to the pull hole 31 in the emergency suspension cap. The logging instrument is then secured to the lower section (i.e., the step of the protective sleeve) by the emergency suspension cap. Finally, the blowout preventer is connected to the protective sleeve, the well is shut in, and the emergency is controlled by pumping and mud flushing. Once the well control emergency has been resolved, the well will be opened, the emergency suspension cap will be removed, the instruments will be lowered back down, and subsequent logging procedures will begin.

[0049] If a well control hazard is encountered during the lifting process of the logging instrument, first lift the logging instrument and connect the upper part of the logging instrument to the emergency suspension cap. The exact position of the pin structure in the protective cap 14 is determined based on the position of the long groove 131 in the emergency suspension cap. The upper part of the logging instrument is housed in the protective cap 14 of the emergency suspension cap by connecting the limiting part 2 in the emergency suspension cap. The rotating tool is connected through the operating hole 32 in the emergency suspension cap, so that the lifting part 3 drives the suspension part 1 to rotate relative to the logging instrument, aligning the pin and connecting the emergency suspension cap with the logging instrument, thus sealing and fixing the upper part of the logging instrument. After the emergency suspension cap is connected to the logging instrument, the logging instrument is quickly lowered by connecting the U-shaped ring and the sling to the pull hole 31 in the emergency suspension cap. The logging instrument is then secured to the lower section (i.e., the step of the protective sleeve) by the emergency suspension cap. Finally, the blowout preventer is connected to the protective sleeve, the well is shut in, and the emergency is controlled by pumping and mud flushing. Once the well control hazard situation has been resolved, the well will be opened, the logging instruments will be retrieved, and subsequent logging operations will begin.

[0050] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A storage-type logging instrument well control emergency suspension cap, characterized in that, include: The suspension part (1) includes a cylinder with a plurality of grooves (11) evenly spaced on the sidewalls, the grooves (11) being arranged along the length of the cylinder; the suspension part (1) has a blind hole (12) inside, and a cylindrical structure (13) extends outward from the opening of the blind hole (12), the outer diameter of the cylinder being larger than the outer diameter of the cylindrical structure (13); the blind hole (12) and the cylindrical structure (13) form a protective cap (14), the diameter of the blind hole (12) being smaller than the inner diameter of the cylindrical structure (13), so that a stepped hole is formed inside the protective cap (14), a slot is provided on the inner wall of the blind hole (12), the slot extending from the step of the stepped hole into the depth of the blind hole (12); the opening of the protective cap (14) is provided with an internal thread for accommodating one end of the logging instrument and for threaded connection with the logging instrument; The limiting part (2) is used to connect with the logging instrument housed in the protective cap (14) to prevent the logging instrument from rotating. The limiting part (2) includes a sleeve (21) and a first limiting claw (22) and a second limiting claw (23) located at both ends of the sleeve (21). The sleeve (21) is disposed inside the protective cap (14), and the outer wall of the sleeve (21) is fitted with the inner wall of the protective cap (14). The first limiting claw (22) is inserted into the slot of the blind hole (12). The second limiting claw (23) extends toward the opening of the protective cap (14) and is provided with a pin structure against the inner wall of the protective cap (14). The lifting part (3) is mainly divided into a flat plate shape. The lifting part (3) is provided with a pull hole (31). The lifting part (3) is connected to the end of the suspension part (1) away from the cylindrical structure (13) for lifting. Among them, the end of the suspension part (1) near the lifting part (3) is a cylinder, and a stud is formed inside the cylinder. The side wall of the cylinder is provided with an operation hole (32) for inserting a rotating tool. Under the drive of the rotating tool, the lifting part (3) can rotate the suspension part (1). The end of the lifting part (3) near the suspension part (1) is provided with a screw hole. The suspension part (1) and the lifting part (3) are connected by a thread through the screw hole, and the suspension part (1) and the lifting part (3) are welded at the connection interface. The end of the lifting part (3) away from the suspension part (1) is set as a conical structure with a rounded curved surface at the top. The operation hole (32) and the conical structure of the lifting part (3) are provided with a long strip through hole to form a pull hole (31).

2. The storage-type logging instrument well control emergency suspension cap according to claim 1, characterized in that, The groove (11) is an arc-shaped groove.

3. The well control emergency suspension cap for a storage-type logging instrument according to claim 1, characterized in that, The outer wall of the cylindrical structure (13) is provided with a long groove (131), which is arranged along the length of the cylindrical structure (13) and is positioned to correspond to the pin structure inside the protective cap (14) and is used as a guide.

4. The method of using the storage-type logging instrument well control emergency suspension cap as described in claim 1, characterized in that, In the event of a well control emergency, first lift up the logging instrument, connect the emergency suspension cap to the logging instrument, and insert the limiting part (2) into the logging instrument to house the upper part of the logging instrument in the protective cap (14); drive the suspension part (1) through the lifting part (3) to rotate relative to the logging instrument, align the pin, and thus connect the emergency suspension cap to the logging instrument to achieve sealing and fixing of the upper part of the logging instrument; after the emergency suspension cap is connected to the logging instrument, quickly lower the logging instrument through the connection of the U-shaped ring and the sling to the pull hole (31) in the emergency suspension cap, suspend the logging instrument on the protective sleeve and in the lower section, then connect the blowout preventer to the protective sleeve and begin the subsequent logging operation procedure.

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