An oil drilling apparatus with an in-line tubing

Abstract

The application relates to the field of petroleum drilling equipment, in particular to petroleum drilling equipment with built-in oil pipes, which comprises the following: the inner wall of a drill rod body is provided with a mounting rod, one end of the mounting rod is provided with a slot, the other end is provided with a base, the inner wall of the slot is provided with an expansion slot and a threaded hole, the inside of the slot is inserted with a plug, the surface of the plug is provided with a pull-out slot and a plug hole, the inside of the expansion slot is provided with a locking block, the surface of the locking block is provided with a pull-out block; an oil pipe body is arranged in the inside of the drill rod body, the surface of the oil pipe body is provided with a No. 1 connecting rod; a mounting plate is arranged in the inside of the drill rod body, one side of the mounting plate is provided with a mounting slot, the inner wall of the mounting slot is provided with a locking slot; the beneficial effects are as follows: the oil pipe body is arranged in the inside of the drill rod body, the operation of lowering the oil pipe is completed while drilling operation is carried out, the drill rod body is used as well hole support after the well hole is drilled, and oil pumping operation can be carried out by lowering an oil pump into the inside of the oil pipe body.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of petroleum drilling equipment, in particular to a petroleum drilling equipment with built-in oil pipe. BACKGROUND

[0002] Petroleum drilling refers to the work of drilling a cylindrical hole with a certain diameter downward or sideward at a pre-selected surface location and reaching the underground oil and gas layer by using petroleum drilling equipment and technology.

[0003] The current petroleum drilling equipment installs the drill rod on the rotating disc through the hexagonal connecting rod when drilling, installs the drill bit at the end of the drill rod, drives the drill rod and the drill bit to drill by the rotating disc, takes out the drill rod after drilling the wellbore, installs the support in the wellbore, and then lowers the oil pipe and the sucker rod to perform the oil pumping operation.

[0004] However, it takes a lot of time to take out the drill rod after drilling the wellbore and then lower the oil pipe, which increases the working strength of the operator, and the sidewall of the wellbore is easily damaged in the process of taking out the drill rod, which leads to the difficulty in installing the wellbore support. SUMMARY

[0005] The present application relates to the field of petroleum drilling equipment, in particular to a petroleum drilling equipment with built-in oil pipe.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A petroleum drilling equipment with built-in oil pipe, comprising:

[0008] A drill rod body, the inner wall of the drill rod body is provided with a mounting rod, one end of the mounting rod is provided with a slot, the other end is provided with a base, the inner wall of the slot is provided with an expansion slot and a threaded hole, a plug is inserted into the interior of the slot, a pulling slot and a plug hole are formed on the surface of the plug, a locking block is arranged in the expansion slot, and a pulling block is arranged on the surface of the locking block:

[0009] An oil pipe body, the oil pipe body is arranged in the interior of the drill rod body, a first connecting rod is arranged on the surface of the oil pipe body, a limiting plate is arranged at the end of the first connecting rod, and a first buffer slot is formed at the end of the first connecting rod;

[0010] A mounting plate, the mounting plate is arranged in the interior of the drill rod body, a mounting slot is formed on one side of the mounting plate, a locking slot is formed on the inner wall of the mounting slot, a second connecting rod is arranged on the other side of the mounting plate, a second buffer slot is formed at the end of the second connecting rod, and a buffer rod is arranged in the interior of the second buffer slot.

[0011] Preferably, multiple sets of mounting rods are provided. The mounting rods are fixedly connected to the inner wall of the drill rod body. The side of the mounting rod away from the inner wall of the drill rod body is set in an arc shape. The base is fixedly connected to the mounting rod, and a U-shaped groove is opened on the surface of the base.

[0012] Preferably, the side wall of the slot has a limiting groove, the telescopic groove passes through the side wall of the slot and the surface of the mounting rod, and the threaded hole is formed on the inner wall of the slot near the end of the telescopic groove.

[0013] Preferably, the insert block is slidably disposed on the inner wall of the slot, a limiting block is fixedly disposed on the side of the insert block near the limiting groove, the limiting block is slidably disposed inside the limiting groove, the insertion hole passes through both ends of the insert block, a rotating groove is opened on the side wall of the insertion hole, a locking screw is inserted into the inside of the insertion hole, the side of the insert block near the telescopic groove is set as an inclined surface, a pull-out groove is opened on the inclined surface of the insert block, and the pull-out groove has a groove structure with a cross section of "T".

[0014] Preferably, the locking screw and the insert block are rotatably connected through the insertion hole, a rotating block is fixedly provided on the surface of the locking screw, the rotating block is rotatably located inside the rotating groove, the control end of the locking screw is flush with the end of the insert block, and the other end of the locking screw passes through the insertion hole and is screwed into the inside of the threaded hole.

[0015] Preferably, the locking block is slidably disposed with respect to the inner wall of the telescopic groove. The side of the locking block near the insert block is configured with an inclined section, and the side of the locking block away from the insert block is configured with an inclined surface. The pull-out block is fixedly installed on the inclined surface of the side of the locking block near the insert block. The pull-out block has a block structure with a "T" shaped cross section and is slidably disposed inside the pull-out groove.

[0016] Preferably, the first connecting rod is fixedly connected to the main body of the oil pipe, the limiting plate is fixedly connected to the end of the first connecting rod away from the main body of the oil pipe, a first damping ring is fixedly installed on the side of the limiting plate, and a first buffer groove passes through the limiting plate.

[0017] Preferably, multiple sets of mounting plates are provided, the positions of the mounting plates correspond to the positions of the mounting rods, the mounting groove is opened on the side of the mounting plate near the mounting rod, the mounting plate is sleeved on the surface of the mounting rod through the mounting groove, the mounting plate is inserted into the interior of the U-shaped groove, the position of the locking groove corresponds to the position of the telescopic groove, and one side of the locking groove is set as an inclined surface.

[0018] Preferably, the second connecting rod is fixedly connected to the mounting plate. Multiple sets of the second connecting rod are provided. The position of the second connecting rod corresponds to the position of the first connecting rod. The second connecting rod is sleeved on the surface of the limiting plate through the second buffer groove. A second damping ring is fixedly provided on the inner wall of the end of the second buffer groove away from the mounting plate. A second buffer spring is provided between the end of the second buffer groove near the mounting plate and the limiting plate.

[0019] Preferably, the buffer rod is fixedly connected to the inner wall of the second buffer groove, the buffer rod is slidably inserted into the inside of the first buffer groove, and a first buffer spring is provided between the buffer rod and the inner wall of the first buffer groove.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention proposes an oil drilling rig with built-in tubing. By placing the tubing body inside the drill pipe body, the tubing is installed simultaneously with the drilling operation. After drilling out of the wellbore, the drill pipe body serves as the wellbore support, and an oil pump can be installed inside the tubing body to start oil production. This saves the time spent installing tubing and solves the problem that removing the drill pipe after drilling out of the wellbore and then installing tubing is time-consuming, increases the workload of operators, and makes it difficult to install wellbore support due to the easy damage to the sidewall of the wellbore during the removal of the drill pipe.

[0022] Connecting rods No. 1 and No. 2 are installed between the tubing body and the drill pipe body to reduce the vibration of the drill pipe body during oil production, thereby protecting the stability of the wellbore wall. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 This is a schematic cross-sectional view of the drill pipe body of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B;

[0027] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point C;

[0028] Figure 6 This is a schematic diagram of the mounting plate structure of the present invention;

[0029] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point D;

[0030] Figure 8 This is a schematic diagram of the main structure of the oil pipe of the present invention;

[0031] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point E;

[0032] Figure 10This is a schematic diagram of the side cross-sectional structure of the present invention;

[0033] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point F;

[0034] Figure 12 This is a top sectional view of the structure of the present invention;

[0035] Figure 13 For the present invention Figure 12 Enlarged structural diagram at point G;

[0036] Figure 14 This is a schematic diagram of the insert structure of the present invention;

[0037] Figure 15 This is a schematic diagram of the locking block structure of the present invention.

[0038] In the diagram: Drill pipe body 1, mounting rod 11, slot 12, limiting groove 13, telescopic groove 14, threaded hole 15, base 16, U-shaped groove 17, oil pipe body 2, connecting rod 1 21, limiting plate 22, buffer groove 1 23, damping ring 1 24, buffer spring 1 25, mounting plate 3, mounting groove 31, locking groove 32, connecting rod 2 33, buffer groove 2 34, buffer rod 35, buffer spring 2 36, damping ring 2 37, insert block 4, limiting block 41, pull-out groove 42, insertion hole 43, rotating groove 44, locking screw 5, rotating block 51, locking block 6, pull-out block 61. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] Please see Figures 1-15 The present invention provides a technical solution:

[0042] An oil drilling rig with built-in tubing includes: an installation rod 11 disposed on the inner wall of a drill pipe body 1; a slot 12 is provided at one end of the installation rod 11, and a base 16 is provided at the other end; a telescopic groove 14 and a threaded hole 15 are provided on the inner wall of the slot 12; an insert block 4 is inserted into the slot 12; a pull-out groove 42 and an insertion hole 43 are provided on the surface of the insert block 4; a locking block 6 is disposed inside the telescopic groove 14; and a pull-out block 61 is provided on the surface of the locking block 6; the oil pipe body 2 is disposed on the drill pipe body 1. Inside the drill pipe body 1, a first connecting rod 21 is provided on the surface of the oil pipe body 2. A limit plate 22 is provided at the end of the first connecting rod 21, and a first buffer groove 23 is opened at the end of the first connecting rod 21. The mounting plate 3 is provided inside the drill pipe body 1. A mounting groove 31 is opened on one side of the mounting plate 3. A locking groove 32 is opened on the inner wall of the mounting groove 31. A second connecting rod 33 is provided on the other side of the mounting plate 3. A second buffer groove 34 is opened at the end of the second connecting rod 33. A buffer rod 35 is provided inside the second buffer groove 34.

[0043] By setting the tubing body 2 inside the drill pipe body 1, the tubing can be installed while drilling is being performed. After drilling out of the wellbore, the drill pipe body 1 serves as the wellbore support, and an oil pump can be installed inside the tubing body 2 to perform oil production.

[0044] Connecting rod 21 and connecting rod 33 are installed between the tubing body 2 and the drill pipe body 1 to reduce the vibration of the drill pipe body 1 during oil production, thereby protecting the stability of the wellbore wall.

[0045] Example 2

[0046] Based on Embodiment 1, to achieve the installation of the tubing body 2 inside the drill pipe body 1, multiple sets of mounting rods 11 are provided. The mounting rods 11 are fixedly connected to the inner wall of the drill pipe body 1. The side of the mounting rod 11 away from the inner wall of the drill pipe body 1 is set as an arc shape. The base 16 is fixedly connected to the mounting rod 11. A U-shaped groove 17 is opened on the surface of the base 16. A limiting groove 13 is opened on the side wall of the slot 12. A telescopic groove 14 penetrates the side wall of the slot 12 and the surface of the mounting rod 11. A threaded hole 15 is opened on the inner wall of the slot 12 near the telescopic groove 14. The insert block 4 is slidably disposed with the inner wall of the slot 12. A limiting block 41 is fixedly disposed on the side of the insert block 4 near the limiting groove 13. The limiting block 41 is slidably disposed inside the limiting groove 13. The insertion hole 43 penetrates both ends of the insert block 4. A rotating groove 44 is opened on the side wall of the insertion hole 43. A locking device is inserted into the inside of the insertion hole 43. The screw 5 and the insert 4 are inclined on the side near the telescopic groove 14. The pull-out groove 42 is opened on the inclined side of the insert 4 and has a "T" shaped groove structure. The locking screw 5 and the insert 4 are rotatably set through the insertion hole 43. A rotating block 51 is fixedly set on the surface of the locking screw 5. The rotating block 51 is rotatably set inside the rotating groove 44. The control end of the locking screw 5 is flush with the end of the insert 4. The other end of the locking screw 5 passes through the insertion hole 43 and is screwed into the threaded hole 15. The locking block 6 is slidably set on the inner wall of the telescopic groove 14. The side of the locking block 6 near the insert 4 is set with an inclined section, and the side of the locking block 6 away from the insert 4 is set with an inclined surface. The pull-out block 61 is fixedly installed on the inclined surface of the side of the locking block 6 near the insert 4. The pull-out block 61 has a "T" shaped block structure and is slidably set inside the pull-out groove 42.

[0047] Mounting plate 3 is fitted onto the surface of mounting rod 11 through mounting groove 31, so that tubing body 2 is inserted into drill rod body 1. When the bottom end of mounting plate 3 is inserted into U-shaped groove 17, the position of locking groove 32 corresponds to telescopic groove 14. Rotating locking screw 5 drives insert block 4 to move closer to telescopic groove 14. Insert block 4 presses locking block 6 into locking groove 32 through pull groove 42 and pull block 61. Locking block 6 presses mounting plate 3 into U-shaped groove 17 through the inclined surface of locking groove 32, fixing the position of mounting plate 3, thereby fixing tubing body 2 inside drill rod body 1.

[0048] Example 3

[0049] Based on Embodiment 2, to reduce the vibration of the drill pipe body 1 during oil production, the first connecting rod 21 is fixedly connected to the tubing body 2, and the limiting plate 22 is fixedly connected to the end of the first connecting rod 21 away from the tubing body 2. A first damping ring 24 is fixedly installed on the side of the limiting plate 22, and a first buffer groove 23 penetrates the limiting plate 22. Multiple sets of mounting plates 3 are provided, and the position of the mounting plates 3 corresponds to the position of the mounting rod 11. The mounting groove 31 is opened on the side of the mounting plate 3 near the mounting rod 11. The mounting plate 3 is sleeved on the surface of the mounting rod 11 through the mounting groove 31. The mounting plate 3 is inserted into the interior of the U-shaped groove 17. The position of the locking groove 32 corresponds to the position of the telescopic groove 14. One side is set as an inclined surface; the second connecting rod 33 is fixedly connected to the mounting plate 3. There are multiple sets of the second connecting rod 33. The position of the second connecting rod 33 corresponds to the position of the first connecting rod 21. The second connecting rod 33 is sleeved on the surface of the limiting plate 22 through the second buffer groove 34. The inner wall of the second buffer groove 34 away from the mounting plate 3 is fixedly provided with the second damping ring 37. The second buffer groove 34 near the mounting plate 3 is provided with the second buffer spring 36 between the second buffer groove 34 and the limiting plate 22; the buffer rod 35 is fixedly connected to the inner wall of the second buffer groove 34. The buffer rod 35 is slidably inserted into the inside of the first buffer groove 23. The first buffer spring 25 is provided between the buffer rod 35 and the inner wall of the first buffer groove 23.

[0050] During the oil extraction process, the oil pump will cause the main body of the oil pipe 2 to vibrate. When vibrating, the first connecting rod 21 extends and retracts inside the second buffer groove 34. Through the cooperation of the first buffer spring 25 and the first damping ring 24, and the cooperation of the second buffer spring 36 and the second damping ring 37, the vibration is greatly reduced, thereby reducing the intensity of the vibration on the drill pipe main body 1.

[0051] In use, the tubing body 2 is inserted into the drill pipe body 1, the mounting plate 3 is fitted onto the surface of the mounting rod 11, and the mounting plate 3 is inserted into the U-shaped groove 17. By rotating the locking screw 5, the insert block 4 is driven to squeeze the locking block 6 into the locking groove 32, fixing the position of the mounting plate 3, thereby fixing the tubing body 2 inside the drill pipe body 1. At this time, when drilling is performed through the drill pipe body 1, the tubing can be installed at the same time. After drilling is completed, the drill pipe body 1 is used as a wellbore support, and the oil pump is installed inside the tubing body 2 to carry out oil production operations.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil drilling apparatus with a built-in tubing, characterized by: The built-in oil pipe petroleum drilling equipment comprises: The inner wall of the drill rod body (1) is provided with a mounting rod (11), one end of the mounting rod (11) is provided with a slot (12), the other end is provided with a base (16), the inner wall of the slot (12) is provided with an expansion slot (14) and a threaded hole (15), the inside of the slot (12) is inserted with a plug block (4), the surface of the plug block (4) is provided with a pulling slot (42) and a plug hole (43), the inside of the expansion slot (14) is provided with a locking block (6), the surface of the locking block (6) is provided with a pulling block (61), the side wall of the slot (12) is provided with a limiting slot (13), the expansion slot (14) penetrates the side wall of the slot (12) and the surface of the mounting rod (11), the threaded hole (15) is provided on the inner wall of the end of the slot (12) close to the expansion slot (14); the plug block (4) and the inner wall of the slot (12) are slidingly arranged, the side of the plug block (4) close to the limiting slot (13) is fixedly provided with a limiting block (41), the limiting block (41) is slidingly arranged in the inside of the limiting slot (13), the plug hole (43) penetrates both ends of the plug block (4), the side wall of the plug hole (43) is provided with a rotating slot (44), the inside of the plug hole (43) is inserted with a locking screw (5), the side of the plug block (4) close to the expansion slot (14) is provided as an inclined surface, the pulling slot (42) is provided at the inclined surface of the plug block (4), and the pulling slot (42) is a slot structure with a "T" shaped cross section; the locking screw (5) and the plug block (4) are rotationally arranged through the plug hole (43), the surface of the locking screw (5) is fixedly provided with a rotating block (51), the rotating block (51) is rotationally arranged in the inside of the rotating slot (44), the control end of the locking screw (5) is flush with the end of the plug block (4), and the other end of the locking screw (5) is screwed in the inside of the threaded hole (15) after penetrating the plug hole (43); the locking block (6) and the inner wall of the expansion slot (14) are slidingly arranged, the side of the locking block (6) close to the plug block (4) is provided as an inclined cross section, the side of the locking block (6) away from the plug block (4) is provided as an inclined surface, the pulling block (61) is fixedly installed at the inclined surface of the side of the locking block (6) close to the plug block (4), the pulling block (61) is a block structure with a "T" shaped cross section, and the pulling block (61) is slidingly arranged in the inside of the pulling slot (42); The oil pipe body (2) is arranged in the inside of the drill rod body (1), and the surface of the oil pipe body (2) is provided with a first connecting rod (21), the end of the first connecting rod (21) is provided with a limiting plate (22), and the end of the first connecting rod (21) is provided with a first buffer slot (23); The mounting plate (3) is arranged in the inside of the drill rod body (1), one side of the mounting plate (3) is provided with a mounting slot (31), the inner wall of the mounting slot (31) is provided with a locking slot (32), the other side of the mounting plate (3) is provided with a second connecting rod (33), the end of the second connecting rod (33) is provided with a second buffer slot (34), and the inside of the second buffer slot (34) is provided with a buffer rod (35).

2. A petroleum drilling apparatus with a built-in oil line according to claim 1, characterized in that: The mounting rod (11) is provided with multiple groups, the mounting rod (11) is fixedly connected with the inner wall of the drill rod body (1), the side, away from the inner wall of the drill rod body (1), of the mounting rod (11) is provided in an arc shape, the base (16) is fixedly connected with the mounting rod (11), and the surface of the base (16) is provided with a U-shaped groove (17).

3. A petroleum drilling apparatus with a built-in oil line according to claim 1, characterized in that: The first connecting rod (21) is fixedly connected with the oil pipe body (2), the limiting plate (22) is fixedly connected with the end, away from the oil pipe body (2), of the first connecting rod (21), the side surface of the limiting plate (22) is fixedly installed with a first damping ring (24), and the first buffer groove (23) penetrates the limiting plate (22).

4. A tubing-in-drilling oil well installation according to claim 3, characterised in that: The mounting plate (3) is provided with multiple groups, the position of the mounting plate (3) corresponds to the position of the mounting rod (11), the mounting groove (31) is arranged on the side, close to the mounting rod (11), of the mounting plate (3), the mounting plate (3) is sleeved on the surface of the mounting rod (11) through the mounting groove (31), the mounting plate (3) is inserted into the U-shaped groove (17), the position of the locking groove (32) corresponds to the position of the telescopic groove (14), and the side of the locking groove (32) is provided in an inclined surface.

5. A tubing-in-drilling oil well installation according to claim 4, characterised in that: The second connecting rod (33) is fixedly connected with the mounting plate (3), the second connecting rod (33) is provided with multiple groups, the position of the second connecting rod (33) corresponds to the position of the first connecting rod (21), the second connecting rod (33) is sleeved on the surface of the limiting plate (22) through the second buffer groove (34), the inner wall of the end, away from the mounting plate (3), of the second buffer groove (34) is fixedly provided with a second damping ring (37), and the second buffer spring (36) is arranged between the end, close to the mounting plate (3), of the second buffer groove (34) and the limiting plate (22).

6. A tubing-in-drilling oil well installation according to claim 5, characterised in that: The buffer rod (35) is fixedly connected with the inner wall of the second buffer groove (34), the buffer rod (35) is slidingly inserted into the first buffer groove (23), and the first buffer spring (25) is arranged between the buffer rod (35) and the inner wall of the first buffer groove (23).

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