CN219472100U

CN219472100U - Directional sensor for well drilling

Info

Publication number: CN219472100U
Application number: CN202320915044.1U
Authority: CN
Inventors: 赵宏洺; 王�琦
Original assignee: Chengdu Zijing Energy Technology Co ltd
Current assignee: Chengdu Zijing Energy Technology Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-08-04
Anticipated expiration: 2033-04-21

Abstract

The utility model discloses a directional sensor for drilling, which belongs to the technical field of sensors and comprises a sensor body, wherein two sides of the sensor body are connected with wires, a protective sleeve is sleeved outside the sensor body, a buffer assembly is arranged between the inner wall of the protective sleeve and the surface of the sensor body, the wires penetrate through the interior of the protective sleeve, two ends of the protective sleeve are fixedly connected with the wires through assembly and disassembly assemblies, the protective sleeve is integrally formed by a buffer tube, a connecting tube and a mounting tube, the buffer assembly is arranged in the buffer tube, the mounting tube is connected with the wires through the assembly and disassembly assemblies, and the buffer tube is symmetrically provided with two groups of mounting tubes through the connecting tubes at two ends.

Description

Directional sensor for well drilling

Technical Field

The utility model relates to the technical field of sensors, in particular to a directional sensor for drilling.

Background

In the prior art, in petroleum and natural gas drilling engineering, the number of directional wells, horizontal wells and large-displacement wells is higher and higher, the application range of measurement while drilling tools is wider and wider, and currently, the most commonly used petroleum drilling while drilling tool is MWD (measurement while drilling) instrument. As a rotary guiding tool, a drill rod can realize guiding control on a borehole track in a rotary state, generally, the rotary guiding tool is divided into a drill pushing type structure and a drill pointing type structure according to a guiding mode, and the rotary guiding tool can be divided into a driving shaft-non-rotary sleeve structure, a full-rotary structure and the like according to a power transmission structure mode, wherein the full-rotary pointing type guiding tool combines the advantages of both pointing type guiding and full-rotary drilling, can be more suitable for various complicated stratum and working conditions, is a trend of developing a guiding drilling technology, and a directional sensor is connected to the rear end of a drill bit of the measurement while drilling tool for transmitting data.

The existing directional sensor for drilling is poor in anti-seismic effect in the use process, a drill bit can generate larger vibration in the drilling process, the internal parts of the sensor are sensitive, the internal parts are easy to damage due to vibration, the detection precision is affected, and the use of people is not facilitated, so that the directional sensor for drilling is provided by a person skilled in the art, and the problems in the background art are solved.

Disclosure of Invention

The utility model aims to provide an orientation sensor for drilling so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the directional sensor for drilling comprises a sensor body, wherein both sides of the sensor body are connected with wires, a protective sleeve is sleeved outside the sensor body, and a buffer component is arranged between the inner wall of the protective sleeve and the surface of the sensor body;

the wire passes through the inside of protective sleeve, and protective sleeve's both ends pass through assembly and disassembly subassembly and wire fixed connection.

Preferably: the protection sleeve is formed by integrally forming a buffer tube, connecting tubes and mounting tubes, the buffer assembly is arranged inside the buffer tube, the mounting tubes are connected with the wires through assembly and disassembly assemblies, and the buffer tube is symmetrically provided with two groups of mounting tubes through the connecting tubes at two ends.

Preferably: the cross-sectional area of the connecting tube has a tendency to taper in a direction away from the buffer tube.

Preferably: the buffer component is provided with a plurality of groups around the central axis of the buffer tube at equal intervals.

Preferably: the buffer assembly comprises a spring and a damper, and the spring is sleeved outside the damper.

Preferably: one end of the spring and the damper are welded with the inner wall of the buffer tube, the other ends of the spring and the damper are welded with the baffle, and one side of the baffle, which is far away from the spring, is contacted with the surface of the sensor body.

Preferably: the surface of wire is equipped with the recess, the inner wall bonding of recess is connected with and installs and removes subassembly assorted metal mounting panel.

Preferably: the assembly and disassembly assembly comprises a metal mounting box and bolts, a communication groove convenient for the mounting box to be placed is formed in the mounting tube, the mounting box is placed in the groove through the communication groove, and the mounting box is locked at the top of the mounting plate through the bolts in the mounting box.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, when the drill bit for drilling is in operation, the directional sensor body is vibrated, the directional sensor body can drive the lead to displace in the protective sleeve, and the buffer component can provide a good damping effect for the sensor body, so that damage to the sensor body due to vibration is reduced.

2. According to the utility model, the mounting box is placed in the groove through the communication groove, the mounting box is locked at the top of the mounting plate through the bolt in the mounting box, the end part of the bolt is positioned in the mounting box after being mounted, the mounting box can be completely clamped in the communication groove and the groove, the structure is simple and convenient to mount and dismount assembly structure, the sensor body and two sides of the sensor body are connected with wires, a protective sleeve is sleeved outside the sensor body, and a buffer assembly is arranged between the inner wall of the protective sleeve and the surface of the sensor body;

the wire passes from the inside of protective sleeve, and protective sleeve's both ends extend the installation tube through installing and removing subassembly and wire fixed connection, can not influence protective sleeve's removal at the in-process of well drilling.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the protective sleeve structure of the present utility model;

FIG. 3 is a cross-sectional elevation view of the protective sleeve structure of the present utility model;

fig. 4 is an enlarged view of the structure of fig. 1 a.

In the figure: 1. a sensor body; 2. a wire; 3. a protective sleeve; 31. a buffer tube; 32. a connecting pipe; 33. installing a pipe; 4. a buffer assembly; 41. a spring; 42. a damper; 5. assembling and disassembling the assembly; 51. a mounting box; 52. a bolt; 6. a baffle; 7. a groove; 8. a mounting plate; 9. and a communication groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, in an embodiment of the utility model, a directional sensor for drilling well comprises a sensor body 1, wherein two sides of the sensor body 1 are connected with a wire 2, a protective sleeve 3 is sleeved outside the sensor body 1, a buffer component 4 is arranged between the inner wall of the protective sleeve 3 and the surface of the sensor body 1, the wire 2 passes through the protective sleeve 3, and two ends of the protective sleeve 3 are fixedly connected with the wire 2 through an assembly and disassembly component 5.

Can pass the metal threading pipe in the inside preselection of protective sleeve 3, later wear protective sleeve 3 to the outside of sensor body 1 from wire 2 of one side, take out the metal threading pipe and make buffer assembly 4 and the surface of sensor body 1 contact, utilize to install and remove subassembly 5 and fix protective sleeve 3, wire 2 adopts toughness well flexible material to make generally, during operation is being carried out to the drill bit for the well, its directional sensor body 1 receives vibrations, directional sensor body 1 can drive wire 2 and take place the displacement in the inside of protective sleeve 3, buffer assembly 4 can provide good shock attenuation effect to sensor body 1.

The protective sleeve 3 is formed by integrally forming a buffer tube 31, a connecting tube 32 and a mounting tube 33, the cross-sectional area of the connecting tube 32 is gradually reduced along the direction away from the buffer tube 31, the buffer assembly 4 is arranged in the buffer tube 31, the mounting tube 33 is connected with the lead 2 through the assembly and disassembly assembly 5, and the buffer tube 31 is symmetrically provided with two groups of mounting tubes 33 through the connecting tubes 32 at two ends, so that the protective sleeve 3 can conveniently move forward along the drill bit in the drilling well.

The buffer assembly 4 is circumference equidistance around the axis of buffer tube 31 and is equipped with the multiunit, buffer assembly 4 includes spring 41 and attenuator 42, the outside at attenuator 42 is established to the spring 41 cover, the one end of spring 41 and attenuator 42 and the inner wall welding of buffer tube 31, the other end welding of spring 41 and attenuator 42 has baffle 6, one side that the spring 41 was kept away from to baffle 6 contacts with the surface of sensor body 1, the area of contact of baffle 6 accessible buffer assembly 4 and sensor body 1, sensor body 1 receives vibrations its accessible baffle 6 to drive spring 41 and attenuator 42 flexible, spring 41 and attenuator 42 can provide good shock attenuation cushioning effect for it.

The surface of wire 2 is equipped with recess 7, the inner wall bonding of recess 7 is connected with and installs and removes subassembly 5 assorted metal mounting panel 8, install and remove subassembly 5 and include metal mounting box 51 and bolt 52, the inside of installing pipe 33 has been seted up the intercommunication groove 9 that is convenient for install box 51 to place, the inside of recess 7 is placed through intercommunication groove 9 to mounting box 51, the top at mounting panel 8 is locked through its inside bolt 52 to mounting box 51, be located the inside of mounting box 51 after the tip installation of bolt 52 is accomplished, mounting box 51 can block to the inside of intercommunication groove 9 and recess 7 completely.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a directional sensor for well drilling, includes sensor body (1), the both sides of sensor body (1) all are connected with wire (2), its characterized in that: the sensor is characterized in that a protective sleeve (3) is sleeved outside the sensor body (1), and a buffer assembly (4) is arranged between the inner wall of the protective sleeve (3) and the surface of the sensor body (1);

the wire (2) passes through the inside of the protective sleeve (3), and two ends of the protective sleeve (3) are fixedly connected with the wire (2) through the assembly and disassembly components (5).

2. A directional sensor for drilling according to claim 1, wherein: the protection sleeve (3) is formed by integrally forming a buffer tube (31), a connecting tube (32) and a mounting tube (33), the buffer assembly (4) is arranged inside the buffer tube (31), the mounting tube (33) is connected with the lead (2) through the assembly and disassembly assembly (5), and the buffer tube (31) is symmetrically provided with two groups of mounting tubes (33) through the connecting tubes (32) at two ends.

3. A directional sensor for drilling according to claim 2, wherein: the cross-sectional area of the connecting tube (32) tapers in a direction away from the buffer tube (31).

4. A directional sensor for drilling according to claim 2, wherein: the buffer components (4) are circumferentially equidistant around the central axis of the buffer tube (31) and are provided with a plurality of groups.

5. A directional sensor for drilling according to claim 4, wherein: the buffer assembly (4) comprises a spring (41) and a damper (42), and the spring (41) is sleeved outside the damper (42).

6. A directional sensor for drilling according to claim 5, wherein: one end of the spring (41) and one end of the damper (42) are welded with the inner wall of the buffer tube (31), the other ends of the spring (41) and the damper (42) are welded with the baffle plate (6), and one side, far away from the spring (41), of the baffle plate (6) is contacted with the surface of the sensor body (1).

7. A directional sensor for drilling according to claim 2, wherein: the surface of wire (2) is equipped with recess (7), the inner wall bonding of recess (7) is connected with and installs and removes subassembly (5) assorted metal mounting panel (8).

8. A directional sensor for drilling according to claim 7, wherein: the assembly and disassembly assembly (5) comprises a metal mounting box (51) and bolts (52), a communication groove (9) which is convenient for the mounting box (51) to be placed is formed in the mounting tube (33), the mounting box (51) is placed in the groove (7) through the communication groove (9), and the mounting box (51) is locked at the top of the mounting plate (8) through the bolts (52) in the mounting box.