Dynamic measurement nipple for pressure, vibration and impact parameters while drilling and logging-while-drilling equipment

Abstract

The utility model discloses a dynamic measurement short section for pressure, vibration and impact parameters while drilling and logging while drilling equipment, and relates to the technical field of oil drilling equipment, in particular to a dynamic measurement short section for pressure, vibration and impact parameters while drilling. The pressure detection assembly comprises a first pressure sensor and a second pressure sensor which are relatively fixed; the first pressure sensor is arranged in the side wall of the shell and is communicated with the outside of the shell; the second pressure sensor is arranged in the side wall of the shell and is communicated with the inner cavity of the shell; according to the dynamic measurement nipple for the pressure, vibration and impact parameters while drilling and the logging-while-drilling equipment, the stress directions of the pressure sensors used for measuring the pressure inside and outside the shell are limited, so that the stress of the pressure detection assembly tends to be balanced, and the measurement precision and durability of the pressure detection assembly are guaranteed; and the sensors except the acceleration sensor are arranged on the side wall of the shell, so that the interference caused by rotation of the instrument is reduced, and the maintenance convenience of the instrument is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of petroleum drilling equipment, more particularly to a dynamic measurement nipple of drilling pressure, vibration and impact parameters, in addition, the utility model relates to a logging while drilling equipment comprising the dynamic measurement nipple of drilling pressure, vibration and impact parameters. BACKGROUND

[0002] Logging while drilling equipment is generally valuable, between several million yuan and tens of millions of yuan, so in the process of oil logging while drilling, the state parameters of the environment of downhole instruments need to be known in real time, especially drilling mud pressure, annular mud pressure and vibration and impact, on the one hand, to avoid instrument damage or reduce instrument wear, on the other hand, to match appropriate or optimal drilling parameters, such as mud injection pressure, displacement provided by the ground wellhead, and drilling speed, which cannot be separated from the values of drilling mud pressure, annular mud pressure and vibration and impact measured in real time from the bottom of the well and transmitted to the ground;

[0003] The current commonly used technology is to install sensors with different purposes in the pipe wall or in the pipe hole of the logging instrument.

[0004] For the installation method of fixing the sensor in the pipe wall, the commonly used structure is to fix the mature or self-made sensor in a certain sealed cavity, fixed by screws or sealed glue, and the sensor is independently placed in a certain cavity.

[0005] However, this design only realizes certain functions by simply placing different sensors, without considering the measurement accuracy, installation reliability and convenience brought by the installation structure, for example, the pressure sensor fixing structure is only subjected to mud pressure in one direction, the sensor is unbalanced, which is easy to cause loosening and failure.

[0006] And the acceleration sensor is biased and placed on the pipe wall, which greatly affects the measurement value due to the rotation of the instrument, causing inaccurate measurement, so the existing technology basically has the problems of low precision and short service life.

[0007] For the installation method of installing the sensor in the pipe hole of the separate nipple, the nipple has a centralizer and a metal pipe, the centralizer supports the nipple on the inner wall of the logging instrument shell, and the metal pipe has a bracket to fix the sensor or circuit board.

[0008] The sensor is installed in the separate nipple in the hole of the shell, the overall structure is complex, and the assembly parts are many, which leads to high cost of the whole instrument; special tools are needed to realize the extraction and installation of the hole nipple in the instrument, which leads to complex installation and maintenance.

[0009] In summary, how to provide a kind of while drilling pressure, vibration, impact parameter dynamic measurement short section and logging while drilling equipment of the low measurement accuracy, poor durability and installation maintenance more difficult in prior art is the urgent problem of current field technicians. Utility model content

[0010] Therefore, the utility model discloses a kind of while drilling pressure, vibration, impact parameter dynamic measurement short section, the stress direction limitation for the pressure sensor inside and outside shell is limited, to make the stress of pressure detection component tend to be balanced, to ensure its measurement accuracy and durability, and the sensor except acceleration sensor is arranged on the shell side wall, reduce the interference caused by instrument rotation and guarantee the maintenance convenience of instrument.

[0011] Another purpose of the utility model is to provide a kind of logging while drilling equipment including the above-mentioned while drilling pressure, vibration, impact parameter dynamic measurement short section, with same technical features, can realize same technical effects.

[0012] To achieve the above object, the utility model provides the following technical scheme:

[0013] A kind of while drilling pressure, vibration, impact parameter dynamic measurement short section, comprising:

[0014] Shell;

[0015] Pressure detection component, including relatively fixed first pressure sensor and second pressure sensor;The first pressure sensor is arranged in the shell side wall, and with the shell outside communication;Second pressure sensor is arranged in the shell side wall, and with the inner chamber of the shell communication;The direction of the detection force that the first pressure sensor and second pressure sensor are subjected to is opposite;

[0016] Acceleration detection component, including acceleration sensor, the acceleration sensor is fixedly arranged in the inner chamber of the shell by centering device, and the center line of the acceleration sensor and the center line of the shell overlap.

[0017] Preferably, the pressure detection component further includes fixed seat, the fixed seat is fixedly arranged in the third cavity of the shell side wall surface, and the first pressure sensor and the second pressure sensor are fixedly connected with the fixed seat.

[0018] Preferably, the bottom of the third cavity is provided with the second passage communicating with the inner chamber of the shell, the second mounting passage communicating with the second passage is arranged in the fixed seat, and the second pressure sensor is installed at the outlet of the second mounting passage.

[0019] The opening position of the third cavity is sealed by a first cover plate, and a first channel communicating with the outside of the shell is arranged in the first cover plate.

[0020] The center lines of the outlet of the first installation channel and the outlet of the second installation channel overlap, and the opening directions are opposite.

[0021] Preferably, a blind hole is arranged at the center line position of the centralizer, the acceleration sensor is fixedly arranged at the bottom of the blind hole, and a plug is sealingly arranged at the opening of the blind hole.

[0022] Preferably, a stepped hole is arranged in the inner cavity of the shell, the end face of the centralizer abuts against the stepped face of the stepped hole, and a threaded through hole communicating with the blind hole is arranged along the radial direction of the centralizer;

[0023] A through hole is arranged in the side wall of the shell along the radial direction, the through hole is coaxial with the threaded through hole, and a locking bolt is arranged inside the through hole and the threaded through hole through threaded connection, and a wire channel communicating with the blind hole is arranged at the axis position of the locking bolt.

[0024] Preferably, a fourth cavity is arranged on the surface of the side wall of the shell, the through hole is arranged at the bottom of the fourth cavity, and a second cover plate is arranged at the opening of the fourth cavity.

[0025] Preferably, a first communication slip ring and a second communication slip ring are coaxially arranged at the two ends of the shell respectively, the first communication slip ring and the second communication slip ring are electrically connected through wires, and a wire channel for arranging the wires is arranged in the side wall of the shell along the axis.

[0026] Preferably, a fifth cavity is arranged on the surface of the side wall of the shell, an inclined hole communicating with the wire channel is arranged at the bottom of the fifth cavity, a download electronic connector electrically connected with the first communication slip ring and / or the second communication slip ring through wires is fixedly arranged in the fifth cavity, and a third cover plate is arranged at the opening of the fifth cavity.

[0027] Preferably, a first cavity, a second cavity and a third cavity are arranged on the surface of the side wall of the shell, and the first cavity, the second cavity and the third cavity are arranged in an annular array about the center line of the shell.

[0028] A communication circuit module, a while-drilling parameter measurement module and / or a pressure detection assembly are respectively arranged in the first cavity, the second cavity and the third cavity.

[0029] The logging-while-drilling device comprises the logging-while-drilling pressure, vibration and impact parameter dynamic measurement nipple.

[0030] Compared with the prior art, the logging-while-drilling pressure, vibration and impact parameter dynamic measurement nipple has at least the following beneficial effects:

[0031] 1. The first pressure sensor and the second pressure sensor in the pressure detection assembly are limited in force direction, so that the forces borne by the two can be partially offset, and the pressure detection assembly is balanced in force, so that the pressure assembly can be kept stable during use, and the measurement accuracy and durability are ensured.

[0032] 2. The acceleration sensor is arranged at the axis position of the shell, so that the interference of instrument rotation on the measurement result is reduced, and the pressure sensors except the acceleration sensor are arranged on the side wall of the shell, which helps to ensure the maintenance convenience of the pressure detection assembly.

[0033] The logging-while-drilling device comprises the logging-while-drilling pressure, vibration and impact parameter dynamic measurement nipple, and has the same beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0035] Figure 1 The structure diagram of the logging-while-drilling pressure, vibration and impact parameter dynamic measurement nipple provided by the present application is shown in the figure.

[0036] Figure 2 The structure diagram of the shell provided by the present application is shown in the figure.

[0037] Figure 3 The structure diagram of the shell provided by the present application is shown in the figure.

[0038] Figure 4 The structure diagram of the pressure detection assembly provided by the present application is shown in the figure.

[0039] Figure 5 The structure diagram of the acceleration detection assembly provided by the present application is shown in the figure.

[0040] Figure 6 The installation structure diagram of the download electronic connector provided by the present application is shown in the figure.

[0041] Figure 7 The installation structure diagram of the communication slip ring provided by the utility model.

[0042] Figures 1-7 In the middle:

[0043] 1, shell; 101, first cavity; 102, second cavity; 103, third cavity; 1031, first channel; 1032, second channel; 104, fourth cavity; 105, fifth cavity; 1051, inclined hole; 106, first cover plate;

[0044] 2, pressure detection assembly; 201, first pressure sensor; 202, second pressure sensor; 203, fixed seat; 2031, first installation channel; 2032, second installation channel;

[0045] 3, acceleration detection assembly; 301, acceleration sensor; 302, locking bolt; 3021, wire channel; 303, second cover plate; 304, centralizer; 305, plug;

[0046] 4, communication assembly; 401, download electronic connector; 402, first communication slip ring; 403, second communication slip ring; 404, third cover plate. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0048] The core of the utility model is to provide a dynamic measurement of drilling pressure, vibration and impact parameters short section, through the stress direction limitation of the pressure sensor for measuring the pressure inside and outside the shell, so that the stress of the pressure detection assembly tends to be balanced, thereby ensuring its measurement accuracy and durability, and the sensors except the acceleration sensor are arranged on the shell side wall, reducing the interference caused by instrument rotation and ensuring the maintenance convenience of the instrument.

[0049] Another core of the utility model is to provide a logging while drilling equipment comprising the above dynamic measurement of drilling pressure, vibration and impact parameters short section, with the same technical features, which can realize the same technical effects.

[0050] Please refer to Figures 1-7 A dynamic measurement of drilling pressure, vibration and impact parameters short section, comprising:

[0051] Shell 1;

[0052] The pressure detection assembly 2 comprises a first pressure sensor 201 and a second pressure sensor 202 which are oppositely fixed. The first pressure sensor 201 is arranged in the side wall of the shell 1 and communicates with the outside of the shell 1. The second pressure sensor 202 is arranged in the side wall of the shell 1 and communicates with the inner cavity of the shell 1. The first pressure sensor 201 and the second pressure sensor 202 are oppositely subjected to the detection force.

[0053] The acceleration detection assembly 3 comprises an acceleration sensor 301 which is fixedly arranged in the inner cavity of the shell 1 by a centering device 304. The center line of the acceleration sensor 301 overlaps the center line of the shell 1.

[0054] As shown in Figure 1 , the first pressure sensor 201 and the second pressure sensor 202 in the pressure detection assembly 2 are symmetrically and oppositely fixed. The force directions of the two are opposite, in which the force direction of the first pressure sensor 201 is horizontally left, and the force direction of the second pressure sensor 202 is horizontally right. Although the force sizes of the two are different, the comprehensive force of the two is equal to the difference between the two, which is smaller than any one of the two. Therefore, the comprehensive force of the pressure detection assembly 2 is small and basically balanced. Therefore, the installation of the pressure detection assembly 2 is stable during use, which avoids the problems of loss of measurement accuracy and decrease of durability caused by change of installation position.

[0055] Meanwhile, the pressure detection assembly 2 is integrated in the side wall of the pipeline, which can directly maintain the pressure detection assembly 2 from the outside, improving the convenience of maintenance.

[0056] Meanwhile, as shown in Figure 5 , the acceleration sensor 301 is fixed on the center line of the shell 1 by the centering device 304, thereby reducing the influence of instrument rotation on the measurement result of the acceleration sensor 301 during work, and further ensuring the measurement accuracy.

[0057] In some embodiments, the pressure detection assembly 2 further comprises a fixing seat 203 which is fixedly arranged in the third cavity 103 on the surface of the side wall of the shell 1. The first pressure sensor 201 and the second pressure sensor 202 are fixedly connected with the fixing seat 203.

[0058] The first pressure sensor 201 and the second pressure sensor 202 are fixed relative to each other by the fixing seat 203, so that the pressure detection assembly 2 is integrated, and the fixing seat 203 can transmit the force between the first pressure sensor 201 and the second pressure sensor 202, thereby balancing the force of the two pressure sensors, reducing the comprehensive force of the pressure detection assembly 2, and thereby ensuring the stability of the connection between the fixing seat 203 and the shell 1, i.e., the stability of the installation position of the first pressure sensor 201 and the second pressure sensor 202, thereby ensuring the detection accuracy and durability of the pressure detection assembly 2.

[0059] In some embodiments, the bottom of the third cavity 103 is provided with a second channel 1032 communicating with the inner cavity of the shell 1, and the fixing seat 203 is provided with a second installation channel 2032 communicating with the second channel 1032, and the second pressure sensor 202 is installed at the outlet of the second installation channel 2032.

[0060] The opening position of the third cavity 103 is sealed by the first cover plate 106, and the first cover plate 106 is provided with a first channel 1031 communicating with the outside of the shell 1, and the fixing seat 203 is provided with a first installation channel 2031 communicating with the first channel 1031, and the first pressure sensor 201 is fixedly installed at the outlet of the first installation channel 2031.

[0061] The center lines of the outlets of the first installation channel 2031 and the second installation channel 2032 overlap, and the opening directions are opposite.

[0062] As shown in Figure 1 and Figure 3 , the pressure detection assembly 2 is arranged in the third cavity 103, and the first cover plate 106 is added to cover and seal the third cavity 103, and the upper and lower end faces of the fixing seat 203 respectively abut against the inner wall of the first cover plate 106 and the bottom wall of the third cavity 103, thereby fixing the fixing seat 203, and sealingly installing the pressure detection assembly 2 in a closed space, thereby avoiding corrosion of the sensor and shortening the service life.

[0063] Meanwhile, channels are arranged on the first cover plate 106 and the bottom of the third cavity 103 respectively for communicating the pressure sensors, so that the first pressure sensor 201 can be in communication with the mud outside the shell 1, i.e., the mud pressure in the annulus outside the shell 1 can be measured, and the second pressure sensor 202 can be in communication with the mud in the inner cavity of the shell 1, i.e., the mud pressure in the inner cavity of the shell 1 can be measured, thereby ensuring the comprehensiveness of the measurement data.

[0064] And a fixed-direction mounting channel is arranged in the fixed seat 203 to fixedly mount the first pressure sensor 201 and the second pressure sensor 202. By making the opening directions of the mounting channels opposite and the center lines overlap, the force directions of the first pressure sensor 201 and the second pressure sensor 202 can be opposite, that is, the forces of the two can partially offset each other, thereby reducing the overall force of the pressure detection assembly 2.

[0065] In some embodiments, the center line position of the centralizer 304 is provided with a blind hole, the acceleration sensor 301 is fixedly arranged at the bottom of the blind hole, and a plug 305 is sealingly arranged at the opening of the blind hole.

[0066] As shown in the figure, the centralizer 304 is used to mount and fix the acceleration sensor 301, which effectively ensures that the acceleration sensor 301 is on the center line of the shell 1. When the shell 1 rotates, the acceleration sensor 301 only revolves around its own axis and does not revolve around the shell 1, that is, the influence of the rotation of the instrument on the detection result of the acceleration sensor 301 is reduced, and the dynamic measurement accuracy of the vibration and impact parameters is ensured. Figure 5

[0067] Meanwhile, a blind hole is arranged in the centralizer 304. After the acceleration sensor 301 is installed, the blind hole is plugged with the plug 305, so that the acceleration sensor 301 is in a sealed space and does not come into contact with the mud, thereby effectively preventing the acceleration sensor 301 from being corroded and prolonging its service life.

[0068] In some embodiments, a stepped hole is arranged in the inner cavity of the shell 1, the end face of the centralizer 304 abuts against the stepped face of the stepped hole, and the outer peripheral wall of the centralizer 304 is provided with a threaded through hole communicating with the blind hole along the radial direction of the centralizer 304.

[0069] The side wall of the shell 1 is provided with a through hole along the radial direction of the shell 1, the through hole is coaxial with the threaded through hole, and the two are connected by a locking bolt 302 inside the threaded hole. The axis position of the locking bolt 302 is provided with a wire channel 3021 communicating with the blind hole.

[0070] As shown in the figure, the centralizer 304 is axially limited by abutting against the stepped face of the inner wall of the shell 1, so that the centralizer 304 has a good axial relative position relationship with the shell 1 during installation, thereby facilitating the subsequent fixation of the centralizer 304 and reducing the assembly difficulty. Figure 1 Meanwhile, the centralizer 304 is secondarily limited by the locking bolt 302 to avoid relative rotation with the shell 1, and the wire channel 3021 is arranged in the locking bolt 302 to facilitate the wire connected to the acceleration sensor 301 to pass through.

[0071]

[0072] ​​In some embodiments, the side wall surface of the shell 1 is provided with a fourth cavity 104, a through hole is provided at the bottom of the fourth cavity 104, and a second cover plate 303 is provided at the opening of the fourth cavity 104;

[0073] As shown in Figure 2 and Figure 5 , by providing the fourth cavity 104 on the surface of the shell 1, the end of the locking bolt 302 is hidden in the fourth cavity 104, so that the surface of the shell 1 is smooth, and the resistance during drilling feeding is reduced, and by providing the second cover plate 303 at the opening of the fourth cavity 104, the sealing performance of the fourth cavity 104 is further improved.

[0074] In some embodiments, the first communication slip ring 402 and the second communication slip ring 403 are coaxially arranged at the two ends of the shell 1 respectively, the first communication slip ring 402 and the second communication slip ring 403 are electrically connected through wires, and a wire channel for arranging the wires is arranged in the side wall of the shell 1 along the axis;

[0075] As shown in Figure 1 and Figure 2 , the male pin and the female socket are arranged at the two ends of the shell 1 respectively, which facilitates the connection of the shell 1 with other equipment, and the first communication slip ring 402 and the second communication slip ring 403 are arranged in the male pin and the female socket respectively, which can be electrically connected with other equipment, thereby improving the expansibility of the equipment, and by arranging the wire channel in the side wall of the shell 1 for arranging the wires, the first communication slip ring 402 and the second communication slip ring 403 are connected, the information exchange of the two ends is realized, and the wires are arranged in the wire channel and do not contact with the mud, which is not affected by the remaining force, so that the stability of the connection can be effectively guaranteed and the durability is improved.

[0076] In some embodiments, the side wall surface of the shell 1 is provided with a fifth cavity 105, the bottom of the fifth cavity 105 is provided with an inclined hole 1051 connected with the wire channel, a download electronic connector 401 electrically connected with the first communication slip ring 402 and / or the second communication slip ring 403 through the wires is fixedly arranged in the fifth cavity 105, and a third cover plate 404 is arranged at the opening of the fifth cavity 105;

[0077] As shown in Figure 6 , by increasing the download electronic connector 401 in the fifth cavity 105, the data in the communication slip ring can be read and downloaded, that is, the first communication slip ring 402, the second communication slip ring 403 and the download electronic connector 401 form a communication assembly 4;

[0078] In actual use, the signal transmission lines of the pressure detection assembly 2 and the acceleration detection assembly 3 can be electrically connected with the transmission lines of the communication slip ring, so that the detection data can be transmitted through the existing communication assembly 4, thereby reducing the wiring.

[0079] In some embodiments, the side wall surface of the housing 1 is provided with a first cavity 101, a second cavity 102 and a third cavity 103, which are arranged in a ring array about the center line of the housing 1.

[0080] The first cavity 101, the second cavity 102 and the third cavity 103 are respectively used for arranging a communication circuit module, a while-drilling parameter measurement module and / or a pressure detection assembly 2.

[0081] As shown in Figs. Figure 1 and As shown in Figs. Figure 2 The three groups of cavities are arranged in a ring array on the outer wall of the housing 1, and are used for accommodating different devices, so as to reduce the deviation of the center of gravity of the housing 1, and make the center of gravity of the short section as a whole as much as possible on the center line of the housing 1, thereby ensuring the force balance of the short section during the working process.

[0082] In addition to the while-drilling pressure, vibration and impact parameter dynamic measurement short section disclosed in the above embodiments, the utility model also provides a while-drilling logging equipment comprising the above while-drilling pressure, vibration and impact parameter dynamic measurement short section, and the structures of other parts of the while-drilling logging equipment refer to the prior art, and will not be described herein.

[0083] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the embodiments can be referred to each other.

[0084] The while-drilling pressure, vibration and impact parameter dynamic measurement short section and the while-drilling logging equipment provided by the utility model are described in detail. The principle and implementation mode of the utility model are described by applying specific examples in the text. The description of the above embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that the ordinary skilled in the art can make some improvements and modifications to the utility model without departing from the principle of the utility model. These improvements and modifications also fall within the protection scope of the claims of the utility model.

Claims

1. A short section for dynamically measuring drilling pressure, vibration, and impact parameters, characterized in that, include: Shell (1); The pressure detection assembly (2) includes a first pressure sensor (201) and a second pressure sensor (202) that are relatively fixed. The first pressure sensor (201) is disposed inside the side wall of the housing (1) and communicates with the outside of the housing (1). The second pressure sensor (202) is disposed inside the side wall of the housing (1) and communicates with the inner cavity of the housing (1). The detection forces acting on the first pressure sensor (201) and the second pressure sensor (202) are in opposite directions. The acceleration detection assembly (3) includes an acceleration sensor (301), which is fixedly arranged in the inner cavity of the housing (1) by a centerer (304), and the center line of the acceleration sensor (301) overlaps with the center line of the housing (1).

2. The short section for dynamic measurement of drilling pressure, vibration, and impact parameters according to claim 1, characterized in that, The pressure detection assembly (2) also includes a fixing seat (203), which is fixedly arranged in the third cavity (103) on the side wall surface of the housing (1). The first pressure sensor (201) and the second pressure sensor (202) are both fixedly connected to the fixing seat (203).

3. The short section for dynamic measurement of drilling pressure, vibration, and impact parameters according to claim 2, characterized in that, The bottom of the third cavity (103) is provided with a second channel (1032) that communicates with the inner cavity of the housing (1), and the fixed base (203) is provided with a second mounting channel (2032) that communicates with the second channel (1032). The second pressure sensor (202) is installed at the outlet of the second mounting channel (2032). The opening of the third cavity (103) is sealed with a first cover plate (106), and a first channel (1031) communicating with the outside of the housing (1) is provided inside the first cover plate (106). A first installation channel (2031) communicating with the first channel (1031) is provided inside the fixing base (203). The first pressure sensor (201) is fixedly installed at the outlet of the first installation channel (2031). The centerlines of the outlets of the first mounting channel (2031) and the second mounting channel (2032) overlap, and their opening directions are opposite.

4. The short section for dynamic measurement of drilling pressure, vibration, and impact parameters according to claim 1, characterized in that, A blind hole is provided at the centerline position of the centering device (304), the acceleration sensor (301) is fixedly arranged at the bottom of the blind hole, and a plug (305) is sealed at the opening of the blind hole.

5. The short section for dynamic measurement of drilling pressure, vibration, and impact parameters according to claim 4, characterized in that, The inner cavity of the housing (1) is provided with a stepped hole, the end face of the centering device (304) abuts against the stepped surface of the stepped hole, and the outer peripheral wall of the centering device (304) is provided with a threaded through hole communicating with the blind hole along its own radial direction. The side wall of the housing (1) is provided with a through hole along its own radial direction. The through hole is coaxial with the threaded through hole, and the two are connected by a threaded connection and a locking bolt (302) is provided inside. A wire channel (3021) connecting the blind hole is provided at the axial position of the locking bolt (302).

6. The short section for dynamic measurement of drilling pressure, vibration, and impact parameters according to claim 5, characterized in that, The side wall surface of the housing (1) is provided with a fourth cavity (104), the through hole is provided at the bottom of the fourth cavity (104), and a second cover plate (303) is provided at the opening of the fourth cavity (104).

7. The short section for dynamic measurement of drilling pressure, vibration, and impact parameters according to claim 1, characterized in that, The housing (1) has a first communication slip ring (402) and a second communication slip ring (403) coaxially arranged at both ends. The first communication slip ring (402) and the second communication slip ring (403) are electrically connected by a wire. The housing (1) has a line channel along the axis for arranging the wires.

8. The short section for dynamic measurement of drilling pressure, vibration, and impact parameters according to claim 7, characterized in that, The side wall surface of the housing (1) is provided with a fifth cavity (105). The bottom of the fifth cavity (105) is provided with an oblique hole (1051) that connects to the line channel. The fifth cavity (105) is fixedly provided with a download electronic connector (401) that is electrically connected to the first communication slip ring (402) and / or the second communication slip ring (403) through a wire. The opening of the fifth cavity (105) is provided with a third cover plate (404).

9. The dynamic measurement sub for drilling pressure, vibration, and impact parameters according to any one of claims 1-8, characterized in that, The side wall surface of the housing (1) is provided with a first cavity (101), a second cavity (102) and a third cavity (103), and the first cavity (101), the second cavity (102) and the third cavity (103) are arranged in a ring array about the center line of the housing (1); The first cavity (101), the second cavity (102) and the third cavity (103) are respectively used to arrange the communication circuit module, the drilling parameter measurement module and / or the pressure detection component (2).

10. A logging-while-drilling device, characterized in that, Includes the dynamic measurement sub for drilling pressure, vibration, and impact parameters as described in any one of claims 1-9.

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