CN213205584U

CN213205584U - Replaceable drill bit for oil exploitation

Info

Publication number: CN213205584U
Application number: CN202021982419.9U
Authority: CN
Inventors: 刘鹏
Original assignee: Heilongjiang Jinghong Petroleum Equipment Manufacturing Co ltd
Current assignee: Heilongjiang Jinghong Petroleum Equipment Manufacturing Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-05-14
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses an oil development is with removable drill bit, including the main body that bores, the side-mounting of the main body that bores has vice brill mechanism, the quantity of vice brill mechanism is a plurality of groups, a plurality of groups vice brill mechanism is located the side of the main body that bores and is the circumference array and distributes, there is the PDC drill bit side of the main body that bores through the bolt fastening, the side-mounting of the main body that bores has the adapter sleeve, the internally mounted of adapter sleeve has the drilling rod, install locking mechanism on the drilling rod, the drilling rod passes through locking mechanism and adapter sleeve locking. Compared with the prior art, the utility model discloses can effectively reduce the internal confining pressure of drilling, greatly avoid the drill chuck to go into the condition in the drilling to simple to operate is swift, and it is nimble convenient to use.

Description

Replaceable drill bit for oil exploitation

Technical Field

The utility model relates to an oil development technical field especially relates to an oil development is with removable drill bit.

Background

Petroleum is a fluid mineral buried under the ground, and it is first known that an oily liquid mineral produced in nature is petroleum, a combustible gas is natural gas, and a solid combustible oily mineral is bitumen, and as the research on these minerals has been advanced, it is recognized that they are hydrocarbon compounds in composition and are related to each other in cause, and therefore they are collectively called petroleum.

In the oil exploitation work, horizontal, nearly horizontal direction or directional drilling along the layer is often required to be carried out in the pit, along with the increase of the drilling depth, the confining pressure in the drilling hole is increased, the drill bit is easily clamped in the drilling hole, and the replaceable drill bit for oil exploitation is not enough in use.

SUMMERY OF THE UTILITY MODEL

In order to solve among the prior art along with the drilling depth increase, the confining pressure increase in the drilling leads to the problem of drill bit card in the drilling very easily, the utility model provides a removable drill bit for oil development.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an oil development is with removable drill bit, includes the main body that bores, the side-mounting of the main body that bores has vice brill mechanism, the quantity of vice brill mechanism is a plurality of groups, a plurality of groups vice brill mechanism is located the side of the main body that bores and is the circumference array and distributes, the side of the main body that bores has the PDC drill bit through the bolt fastening, the side-mounting of the main body that bores has the adapter sleeve, the internally mounted of adapter sleeve has the drilling rod, install locking mechanism on the drilling rod, the drilling rod passes through locking mechanism and adapter sleeve locking.

Preferably, the auxiliary drilling mechanism comprises a sliding groove formed in the side face of the main drilling body, two ends of the sliding groove are rotatably connected with a rotating shaft through bearings, a spline sleeve is connected to the rotating shaft through a spline, and an auxiliary drill bit is connected between the spline sleeve and the spline sleeve through threads.

Preferably, the spline housing is connected with the rotating shaft in a sliding mode, and two ends of the auxiliary drill bit are respectively connected with limiting rings through threads.

Preferably, locking mechanism includes threaded rod and sliding sleeve, the sliding sleeve slides and cup joints on the threaded rod, the sliding sleeve run through adapter sleeve and drilling rod and with adapter sleeve and drilling rod sliding connection, the one end of sliding sleeve is rotated and is connected with first connecting rod, the one end that the sliding sleeve was kept away from to first connecting rod is rotated and is connected with the second connecting rod, it is connected with the thread bush to rotate between the second connecting rod, thread bush and threaded rod sliding connection.

Preferably, a first limiting groove is formed in the side face of the connecting sleeve, a second limiting groove is formed in the first limiting groove, and the first connecting rod and the second connecting rod are clamped through the first limiting groove.

Preferably, a bayonet lock is fixed on the side surface of the first connecting rod and clamped with the second limiting groove.

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

the utility model discloses when installing, at first fix the PDC drill bit on the main drill body through the bolt, place the secondary drill bit between two spline housing afterwards, make the spline housing pass through the screw thread through rotatory spline housing and fix with the secondary drill bit, so far accomplish the equipment of PDC drill bit and secondary drill mechanism, install the main drill body on the drilling rod through adapter sleeve and locking mechanism, the concrete step is, after the adapter sleeve is covered on the drilling rod, insert the sliding sleeve into the inside of adapter sleeve from one side of first spacing groove, then slide and insert the threaded rod in the opposite side, the threaded rod lies in that the threaded sleeve passes through threaded connection, rotatory threaded rod makes the threaded sleeve along the axial motion of threaded rod, the threaded sleeve motion makes first connecting rod and second connecting rod rotate and coincide, first connecting rod and second connecting rod are received in first spacing inslot completely, the spacer pin card on the first connecting rod is gone into in the second spacing groove, the installation is accomplished, in the utility model discloses the use, the drilling rod is driven rotatoryly by the rig, and the drilling rod passes through the adapter sleeve and drives vice drilling mechanism and PDC drill bit and rotate, and the PDC drill bit rotates and creeps into to the workplace, and the in-process main drill body that drills drives vice drilling mechanism and drills to the lateral wall of drilling, confined pressure in the limiting reduction drilling, and vice drilling mechanism can follow the main drill body and carry out whole drilling and also can rotate by oneself and arrange the sediment, and the convenience of use improves greatly, compares in prior art, the utility model discloses can effectively reduce the in-hole confined pressure of drilling, greatly avoided the drill bit card to go into the condition in the drilling, and simple to operate is swift, and it is nimble convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of a replaceable drill bit for oil exploitation according to the present invention;

fig. 2 is an enlarged schematic view of a portion a of a replaceable drill bit for oil exploitation according to the present invention;

fig. 3 is an enlarged schematic view of a portion B of the replaceable drill bit for oil exploitation according to the present invention.

In the figure: the drill bit comprises a main drill body 1, an auxiliary drill mechanism 2, a rotating shaft 21, a spline sleeve 22, an auxiliary drill bit 23, a limiting ring 24, a PDC drill bit 3, a connecting sleeve 4, a drill rod 5, a locking mechanism 6, a threaded rod 61, a sliding sleeve 62, a first connecting rod 63, a threaded sleeve 64, a second connecting rod 65 and a clamping pin 66.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a replaceable drill bit for oil exploitation comprises a main drill body 1, auxiliary drill mechanisms 2 are mounted on the side surface of the main drill body 1, the auxiliary drill mechanisms 2 are arranged in a plurality of groups, the auxiliary drill mechanisms 2 in the plurality of groups are located on the side surface of the main drill body 1 and distributed in a circumferential array manner, PDC drill bits 3 are fixed on the side surface of the main drill body 1 through bolts, a connecting sleeve 4 is mounted on the side surface of the main drill body 1, a drill rod 5 is mounted inside the connecting sleeve 4, a locking mechanism 6 is mounted on the drill rod 5, and the drill rod 5 is locked with the connecting sleeve 4 through the locking mechanism 6.

Specifically, vice rig structure 2 is including seting up the spout in main brill body 1 side, and the both ends of spout all are connected with pivot 21 through bearing rotation, have spline housing 22 through splined connection on the pivot 21, have vice drill bit 23 through threaded connection between two spline housings 22, spline housing 22 and pivot 21 sliding connection, and there is spacing ring 24 at the both ends of vice drill bit 23 through threaded connection respectively.

Specifically, locking mechanism includes threaded rod 61 and sliding sleeve 62, sliding sleeve 62 slides and cup joints on threaded rod 61, sliding sleeve 62 runs through adapter sleeve 4 and drilling rod 5 and with adapter sleeve 4 and drilling rod 5 sliding connection, sliding sleeve 62's one end is rotated and is connected with first connecting rod 63, first connecting rod 63 is kept away from sliding sleeve 62's one end and is rotated and be connected with second connecting rod 65, it is connected with thread bush 64 to rotate between the second connecting rod 65, thread bush 64 and threaded rod 61 sliding connection, first spacing groove has been seted up to the side of adapter sleeve 4, the second spacing groove has been seted up to the inside of first spacing groove, first connecting rod 63 and second connecting rod 65 have first spacing groove joint, the side of first connecting rod 63 is fixed with bayonet lock 66, bayonet lock 66 and second spacing groove joint.

The working principle is as follows: during installation, firstly, the PDC drill bit 3 is fixed on the main drill body 1 through a bolt, then the auxiliary drill bit 23 is placed between the two spline sleeves 22, the spline sleeves 22 are fixed with the auxiliary drill bit 23 through threads by rotating the spline sleeves 22, so that the assembly of the PDC drill bit 3 and the auxiliary drilling mechanism 2 is completed, the main drill body 1 is installed on the drill rod 5 through the connecting sleeve 4 and the locking mechanism 6, the specific steps are that after the connecting sleeve 4 is sleeved on the drill rod 5, the sliding sleeve 62 is inserted into the connecting sleeve 4 from one side of a first limiting groove, then the threaded rod 61 is inserted into the other side in a sliding manner, the threaded rod 61 is connected with the threaded sleeve 64 through threads, the threaded sleeve 64 is rotated by the threaded rod 61 to move along the axial direction of the threaded rod 61, the first connecting rod 63 and the second connecting rod 65 are rotated and overlapped by the movement of the threaded sleeve 64, the first connecting rod 63 and the second connecting rod 65 are completely accommodated in the first limiting groove, the limiting pin 66 on, the installation is accomplished the utility model discloses in the use, the drilling rod 5 is rotatory by the rig drive, drilling rod 5 drives vice drilling mechanism 2 and PDC drill bit 3 through adapter sleeve 4 and rotates, PDC drill bit 3 rotates and creeps into to the workplace, the in-process main drill body 1 that drills drives vice drilling mechanism 2 and drills to the lateral wall of drilling, confined pressure in the limited reduction drilling, and vice drilling mechanism 2 can follow main drill body 1 and wholly drill and also can rotate by oneself and arrange the sediment, the convenience of use improves greatly, compare in prior art, the utility model discloses can effectively reduce the in-hole confined pressure of drilling, greatly avoided the drill bit card to go into the condition in the drilling, and simple to operate is swift, and it is nimble convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a replaceable drill bit for oil development, includes the main drill body (1), its characterized in that, the side-mounting of the main drill body (1) has vice brill mechanism (2), the quantity of vice brill mechanism (2) is a plurality of groups, a plurality of groups vice brill mechanism (2) are located the side of the main drill body (1) and are circumference array distribution, there are PDC drill bit (3) side of the main drill body (1) through the bolt fastening, the side-mounting of the main drill body (1) has adapter sleeve (4), the internally mounted of adapter sleeve (4) has drilling rod (5), install locking mechanism (6) on drilling rod (5), drilling rod (5) are locked through locking mechanism (6) and adapter sleeve (4).

2. The replaceable drill bit for oil exploitation according to claim 1, wherein the secondary drilling mechanism (2) comprises a sliding groove formed in the side surface of the main drilling body (1), both ends of the sliding groove are rotatably connected with a rotating shaft (21) through bearings, a spline sleeve (22) is connected onto the rotating shaft (21) through a spline, and a secondary drill bit (23) is connected between the two spline sleeves (22) through threads.

3. The replaceable drill bit for oil exploitation according to claim 2, wherein the spline housing (22) is slidably connected with the rotating shaft (21), and two ends of the secondary drill bit (23) are respectively connected with a limiting ring (24) through threads.

4. The replaceable drill bit for oil exploitation according to claim 1, wherein the locking mechanism comprises a threaded rod (61) and a sliding sleeve (62), the sliding sleeve (62) is slidably sleeved on the threaded rod (61), the sliding sleeve (62) penetrates through the connecting sleeve (4) and the drill rod (5) and is slidably connected with the connecting sleeve (4) and the drill rod (5), one end of the sliding sleeve (62) is rotatably connected with a first connecting rod (63), one end, far away from the sliding sleeve (62), of the first connecting rod (63) is rotatably connected with a second connecting rod (65), a threaded sleeve (64) is rotatably connected between the second connecting rods (65), and the threaded sleeve (64) is slidably connected with the threaded rod (61).

5. The replaceable drill bit for oil exploitation according to claim 4, wherein a first limiting groove is formed in a side surface of the connecting sleeve (4), a second limiting groove is formed in the first limiting groove, and the first connecting rod (63) and the second connecting rod (65) are clamped by the first limiting groove.

6. The replaceable drill bit for oil exploitation according to claim 5, wherein a bayonet (66) is fixed on a side surface of the first connecting rod (63), and the bayonet (66) is clamped with the second limiting groove.