CN220687304U

CN220687304U - Weight-on-bit torque measurement-while-drilling device

Info

Publication number: CN220687304U
Application number: CN202321451159.6U
Authority: CN
Inventors: 吕小磊; 张国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2024-03-29
Anticipated expiration: 2033-06-08

Abstract

The utility model discloses a weight-on-bit torque measurement device which comprises a drill bit, wherein a plurality of measurement assemblies are arranged on the drill bit, a cavity is arranged in the drill bit, four through grooves communicated with the cavity are formed in the drill bit, a threaded rod is rotatably arranged in the cavity, a movable block is connected onto the threaded rod, four hinged plates are hinged onto the side face of the movable block, a vertical plate is hinged onto the other end of each of the four hinged plates, a cutting plate is fixedly connected onto the other side of each vertical plate, the four cutting plates penetrate through the four through grooves and are in sliding connection with the four through grooves, and a driver for driving the threaded rod to rotate is arranged in the cavity. According to the utility model, the distance that the cutting plate extends out of the drill bit is convenient to adjust by arranging the driver, the threaded rod, the movable block, the hinged plate and the vertical plate, so that the diameter of the drilled hole is adjusted, and because the cutting plate is in sliding connection with the through groove, external sundries cannot enter the cavity, so that the sundries are prevented from affecting the operation of the driver.

Description

Weight-on-bit torque measurement-while-drilling device

Technical Field

The utility model relates to the field of petroleum drilling, in particular to a weight-on-bit torque measurement device.

Background

In the oilfield drilling process, certain stratum is influenced by complicated geological conditions such as high pressure, low pressure, coal seam, easy collapse, and the like, but in the actual construction process, a drill rod drill bit is started after a drilled well section, the stratum can possibly have complicated conditions such as collapse, necking, kick, lost circulation, and the like, the existing casing drilling drill bit is single in structure and fixed in inner diameter, the aim of coping with the underground complicated geological conditions cannot be fulfilled, the oil well hole can be reamed after the existing casing drilling drill bit is taken out and detached, and the collapse of an oil well can be caused.

The current chinese patent with publication number CN218780344U discloses a device for measuring drilling weight while drilling, drives the screw thread disc to go up and down through the operation driver, promotes the cutting board rotation through the connecting rod, and then the reducing range of accurate control drill bit, compares in prior art, can adjust the diameter of drill bit according to actual conditions.

However, the technical scheme has the following defects: during operation, sundries easily enter the cavity through the opening, so that the sundries are in contact with the driver, and the operation of the driver is affected.

Disclosure of Invention

The utility model aims to provide a weight-on-bit torque measurement device so as to solve at least one technical problem.

The utility model aims to solve the technical problems, and is realized by adopting the following technical scheme:

the drilling pressure torque measurement while drilling device comprises a drill bit, wherein a plurality of measurement components are arranged on the drill bit, a cavity is arranged in the drill bit, four through grooves communicated with the cavity are formed in the drill bit, a threaded rod is rotatably arranged in the cavity, a movable block is connected onto the threaded rod, four hinged plates are hinged onto the side face of the movable block, a vertical plate is hinged onto the other end of each hinged plate, a cutting plate is fixedly connected onto the other side of each vertical plate, the four cutting plates penetrate through the four through grooves and are in sliding connection with the four through grooves, and a driver for driving the threaded rod to rotate is arranged in the cavity;

the drill bit is characterized in that a plurality of guide rods are arranged on the inner wall of the drill bit, and the guide rods penetrate through the vertical plates respectively and are connected with the vertical plates in a sliding mode.

Preferably, the driver is a motor, and a power output shaft of the motor is fixedly connected with the lower end of the threaded rod.

Preferably, the movable block is sleeved on the threaded rod and is in threaded connection with the threaded rod.

Preferably, the drill bit is provided with the same number of screw heads as the measuring assemblies.

Preferably, the measuring assembly comprises a measuring cylinder, a connecting groove matched with the threaded head is formed in the bottom of the measuring cylinder, a sensing probe rod is placed in the measuring cylinder, and the top of the measuring cylinder is in threaded connection with the sealing head.

Preferably, the sensing probe rod consists of a torque sensor, a weight on bit sensor and a transmission end from top to bottom.

Preferably, an anti-skid groove is arranged on the outer surface of the measuring cylinder.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the distance that the cutting plate extends out of the drill bit is convenient to adjust by arranging the driver, the threaded rod, the movable block, the hinged plate and the vertical plate, so that the diameter of the drilled hole is adjusted, and because the cutting plate is in sliding connection with the through groove, external sundries cannot enter the cavity, so that the sundries are prevented from affecting the operation of the driver.

2. The utility model is convenient to detach the measuring cylinder from the screw thread head and install the measuring cylinder on the screw thread head by arranging the screw thread head and the connecting groove, thereby facilitating the maintenance or replacement of the measuring cylinder, the transmission end, the weight-on-bit sensor and the torque sensor.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the present utility model;

FIG. 3 is a perspective view of a drill bit of the present utility model;

FIG. 4 is a schematic diagram of the internal structure of the second embodiment of the present utility model;

FIG. 5 is a schematic view of the internal structure of the measuring cylinder of the present utility model;

reference numerals: 1. a drill bit; 11. a cavity; 12. a through groove; 13. a thread head; 21. a driver; 22. a threaded rod; 23. a movable block; 24. a hinged plate; 25. a riser; 26. a cutting plate; 27. a guide rod; 28. a battery; 3. a measurement assembly; 31. a measuring cylinder; 32. a transfer end; 33. a weight-on-bit sensor; 34. a torque sensor; 35. a sealing head; 36. a connecting groove; 37. an anti-skid slot.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.

Specific embodiments of the present utility model are described below with reference to the accompanying drawings.

Examples

As shown in fig. 1-5, a measurement device for weight-on-bit torque while drilling comprises a drill bit 1, wherein a plurality of thread heads 13 are installed on the drill bit 1, each thread head 13 is connected with a measuring cylinder 31, a connecting groove 36 matched with the thread head 13 is formed in the bottom of the measuring cylinder 31, a sensing probe rod is placed in the measuring cylinder 31 and consists of a torque sensor 34, a weight-on-bit sensor 33 and a transmitting end 32 from top to bottom, the top of the measuring cylinder 31 is in threaded connection with a sealing head 35, and in order to facilitate rotation of the measuring cylinder 31, an anti-slip groove 37 is formed in the outer surface of the measuring cylinder 31, so that friction force between fingers and the measuring cylinder 31 can be improved, and further the measuring cylinder 31 is convenient to rotate.

The drill bit 1 is internally provided with a cavity 11, a motor and a battery 28 for supplying power to the motor are arranged in the cavity 11, a threaded rod 22 is fixedly connected to a power output shaft of the motor, the threaded rod 22 is rotationally connected with the cavity 11, a movable block 23 is sleeved on the threaded rod 22, the movable block 23 is in threaded connection with the threaded rod 22, hinge plates 24 are hinged to four sides of the movable block 23, the other ends of the hinge plates 24 are hinged to vertical plates 25, cutting plates 26 are fixedly connected to the other sides of the four vertical plates 25, the four cutting plates 26 penetrate through a through groove 12 formed in the drill bit 1 and are in sliding connection with the through groove 12, the cutting plates 26 are attached to the through groove 12, when the motor runs, the threaded rod 22 is driven to rotate, the movable block 23 is driven to move, the vertical plates 25 are driven to move through hinge rods when the movable block 23 moves, and the distance of the cutting plates 26 extending out of the drill bit 1 is adjusted.

In order to improve the stability of the risers 25 during movement, two guide rods 27 are installed on each riser 25 in a penetrating manner, the guide rods 27 are fixedly connected with the inner wall of the drill bit 1, and the guide rods 27 are slidably connected with the risers 25.

Working principle: when the drill bit is used, the power output shaft of the motor drives the threaded rod 22 to rotate through starting the motor, the movable block 23 is further moved, when the movable block 23 moves, the vertical plate 25 is driven to move through the hinging rod, the cutting plate 26 is driven to move, and the distance that the cutting plate 26 extends out of the drill bit 1 is further adjusted, so that the diameter of a drilled hole is adjusted. And because the cutting plate 26 is in sliding connection with the through groove 12, external sundries cannot enter the cavity, and therefore the operation of the motor is prevented from being influenced by the sundries.

In use, the torque sensor 34 may detect the torque of the drill bit 1, the weight-on-bit sensor 33 may detect the drilling pressure of the drill bit 1, the transmitting end 32 may be used to transmit data, and the operator may conveniently control the rotational speed and the drilling pressure of the drill bit 1 via real-time data.

When the measuring cylinder 31, the transmitting end 32, the weight-on-bit sensor 33 and the torque sensor 34 are required to be overhauled or replaced, the connecting groove 36 on the measuring cylinder 31 is separated from the threaded head 13 by rotating the measuring cylinder 31, and then the sealing head 35 is separated from the measuring cylinder 31, so that the transmitting end 32, the weight-on-bit sensor 33 and the torque sensor 34 are convenient to pour out, and the measuring cylinder 31, the transmitting end 32, the weight-on-bit sensor 33 and the torque sensor 34 are convenient to overhaule or replace, and after overhauling or replacing is completed, the measuring cylinder 31 is in threaded connection with the threaded head 13.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a weight on bit moment of torsion measurement while drilling device, includes drill bit (1), install a plurality of measurement assembly (3) on drill bit (1), be provided with cavity (11), its characterized in that in drill bit (1): four through grooves (12) communicated with the cavity (11) are formed in the drill bit (1), a threaded rod (22) is rotatably installed in the cavity (11), a movable block (23) is connected to the threaded rod (22), four hinge plates (24) are hinged to the side face of the movable block (23), vertical plates (25) are hinged to the other ends of the hinge plates (24), cutting plates (26) are fixedly connected to the other sides of the vertical plates (25), the four cutting plates (26) penetrate through the four through grooves (12) respectively and are in sliding connection with the four through grooves, and a driver (21) for driving the threaded rod (22) to rotate is arranged in the cavity (11);

a plurality of guide rods (27) are arranged on the inner wall of the drill bit (1), and the guide rods (27) respectively penetrate through the vertical plates (25) and are in sliding connection with the vertical plates (25).

2. The weight-on-bit torque measurement device of claim 1, wherein: the driver (21) is a motor, and a power output shaft of the motor is fixedly connected with the lower end of the threaded rod (22).

3. The weight-on-bit torque measurement device of claim 1 or 2, wherein: the movable block (23) is sleeved on the threaded rod (22) and is in threaded connection with the threaded rod (22).

4. The weight-on-bit torque measurement device of claim 1, wherein: the drill bit (1) is provided with screw thread heads (13) the same as the measuring assemblies (3).

5. The weight-on-bit torque measurement device of claim 4, wherein: the measuring assembly (3) comprises a measuring cylinder (31), a connecting groove (36) matched with the threaded head (13) is formed in the bottom of the measuring cylinder (31), a sensing probe rod is placed in the measuring cylinder (31), and a sealing head (35) is connected with the top of the measuring cylinder (31) in a threaded mode.

6. The weight-on-bit torque measurement device of claim 5, wherein: the sensing probe rod consists of a torque sensor (34), a weight on bit sensor (33) and a transmission end (32) from top to bottom.

7. The weight-on-bit torque measurement device of claim 5, wherein: an anti-skid groove (37) is arranged on the outer surface of the measuring cylinder (31).