CN211623347U

CN211623347U - Oil extraction drill rod joint

Info

Publication number: CN211623347U
Application number: CN202020050843.3U
Authority: CN
Inventors: 徐晶晶
Original assignee: Jiangsu Huai'an Technician College
Current assignee: Jiangsu Huai'an Technician College
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-10-02
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses an oil recovery drilling rod connects, concretely relates to exploration technical field, including the male joint main part, the surface of male joint main part is rotated and is installed the female joint main part, the junction fixed mounting of male joint main part and female joint main part has sealing device, the fixed surface of female joint main part installs reinforcing apparatus, the male joint main part includes the male joint, the up end central point of male joint puts and has seted up the holding tank, first screw hole has evenly been seted up to one side that the up end of male joint is close to the holding tank, the up end of male joint is close to the opposite side of holding tank and has evenly seted up the second screw hole, the female joint main part includes the female joint, the internal surface of female joint is provided with the interior surface treatment layer. The utility model discloses an inside and outside surface treatment layer and the setting of first two sealing washers can strengthen the drilling rod piecing junction leakproofness.

Description

Oil extraction drill rod joint

Technical Field

The utility model relates to an exploration technical field, more specifically say, the utility model relates to an oil recovery drilling rod connects.

Background

The drill rod joint is a component of a drill rod and is divided into a male joint and a female joint which are connected to two ends of a drill rod pipe body. For the joint strength who strengthens the joint, need increase the wall thickness of body at the joint position, can divide into according to the mode of thickening: three forms of internal thickening, external thickening and internal and external thickening. The joint is provided with a thread (a thick buckle) for connecting the threads of the drill rod joints of the single drill rod into a taper pipe thread with a sealing shoulder, the shoulder surface is screwed to play a role in sealing, and the thread only plays a role in connection. The thickening modes are different, and the thread buckle types of the corresponding joints are also different.

Patent application publication No. CN 202520243U's utility model discloses a drilling rod is stung to anti-sticking tile, and it includes drilling rod male joint, drilling rod body and drilling rod box, and the welding has thick wall pipe in addition between drilling rod body and drilling rod box, and the thick wall external diameter of pipe is unanimous with the thickening end external diameter of drilling rod body. The occlusion part of the slip and the drill rod is welded with the occlusion-resistant thick-wall pipe, so that the slip can be prevented from being bitten, the bite marks can be reduced, and the service life of the drill rod is prolonged.

But in practical use, the method still has more defects, such as poor sealing performance of the drill rod joint.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides an oil recovery tool joint, the user can strengthen tool joint junction leakproofness through the setting of interior external surface treatment layer and first two sealing washers to solve the problem mentioned in the above-mentioned background.

In order to achieve the above object, the utility model provides a following technical scheme: an oil extraction drill rod joint comprises a male joint main body, wherein a female joint main body is rotatably arranged on the outer surface of the male joint main body, a sealing device is fixedly arranged at the joint of the male joint main body and the female joint main body, a reinforcing device is fixedly arranged on the outer surface of the female joint main body, the male joint main body comprises a male joint, a containing groove is formed in the center of the upper end surface of the male joint, a first threaded hole is uniformly formed in one side, close to the containing groove, of the upper end surface of the male joint, and a second threaded hole is uniformly formed in the other side, close to the containing groove, of the upper end surface of the male;

the female joint main part includes the female joint, the internal surface of female joint is provided with interior surface treatment layer, the surface of female joint is provided with exterior surface treatment layer, the up end central point that female connects puts and is provided with the filling layer, reinforcing apparatus includes wear-resisting strip, the fixed surface of wear-resisting strip installs the fixed strip.

Sealing device includes the sealing ring, the up end of sealing ring rotates installs second threaded shaft, the upper end fixed mounting of second threaded shaft has the second nut, first threaded shaft has been placed to the inboard of sealing ring, the upper end fixed mounting of first threaded shaft has first nut, the second sealing washer has been placed to the below of sealing ring, the lower surface laminating of second sealing washer has the isolating ring, the lower surface laminating of isolating ring has first sealing washer.

In a preferred embodiment, the outer surface of the male connector and the outer surface of the female connector are provided with mutually matched threads.

In a preferred embodiment, the outer surface of the outer surface treatment layer is galvanized, the filling layer is poured with dehydrated resin, and the inner surface of the inner surface treatment layer is an anti-corrosion layer.

In a preferred embodiment, the first threaded bore is adapted to a first threaded shaft and the first threaded shaft is rotatably mounted within the first threaded bore, the second threaded bore is adapted to a second threaded shaft and the second threaded shaft is rotatably mounted within the second threaded bore.

In a preferred embodiment, the first sealing ring, the isolating ring and the second sealing ring are all placed inside the accommodating groove, and the sealing ring is matched with the accommodating groove.

In a preferred embodiment, the lower surface of the first nut abuts the upper surface of the sealing ring.

In a preferred embodiment, the diameters of the first seal ring, the spacer ring and the second seal ring are the same, the first seal ring is made of modified rubber material, and the second seal ring is made of synthetic rubber material.

In a preferred embodiment, the fixing strips and the wear-resistant strips are distributed on the outer surface of the female joint main body in a criss-cross manner.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a fixed strip is fixed to be installed at the surface of wear-resisting strip, and fixed strip and wear-resisting strip are vertically and horizontally staggered and distribute at the surface of female joint main part, be favorable to strengthening the self intensity of female joint, and then prevent the loss, and wear-resisting strip avoids the direct wearing and tearing of foreign matter to female joint in the exploration process through self wear-resisting characteristic simultaneously, thereby reduces fatigue degree;

2. the utility model discloses a lower surface of first nut is laminated with the upper surface of sealing ring mutually, and then further extrude the sealing ring, thereby ensure first sealing washer, isolating ring and second sealing washer are at the inside leakproofness of holding tank, because first sealing washer is the modified rubber material component, prevent that long-time use from causing ageing, the second sealing washer is the synthetic rubber material component, strengthen mechanical properties, be favorable to prolonging the practical life of device, the isolating ring can prevent that two sealing washers from taking place the rubber base member and bonding, and then ensure drilling rod joint junction leakproofness, again because the surface on surface treatment layer sets up for zinc-plating, the inside watering of filling layer has the dewatering resin, the internal surface on internal surface treatment layer is the passive film, epoxy coating and phenol-formaldehyde epoxy composite bed, be favorable to strengthening female self leakproofness.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a top view of the male connector body of the present invention.

Fig. 3 is a top view of the female connector body of the present invention.

Fig. 4 is a schematic structural view of the sealing device of the present invention.

Fig. 5 is a schematic structural view of the reinforcing apparatus of the present invention.

The reference signs are: 1 male joint main part, 2 female joint main parts, 3 sealing device, 4 reinforcing apparatus, 5 male joint, 6 first screw hole, 7 second screw hole, 8 holding tank, 9 internal surface treatment layer, 10 filling layer, 11 female joint, 12 external surface treatment layer, 13 sealing rings, 14 second nut, 15 first screw shaft, 16 first sealing ring, 17 isolating ring, 18 second sealing ring, 19 first nut, 20 second screw shaft, 21 fixed strip, 22 wear-resisting strip.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses oil recovery drilling rod connects can include male joint main part 1, female joint main part 2 is installed in the surface rotation of male joint main part 1, the junction fixed mounting of male joint main part 1 and female joint main part 2 has sealing device 3, the fixed surface of female joint main part 2 installs reinforcing apparatus 4, male joint main part 1 includes male joint 5, holding tank 8 has been seted up to male joint 5's up end central point, first screw hole 6 has evenly been seted up to one side that the up end of male joint 5 is close to holding tank 8, second screw hole 7 has evenly been seted up to the opposite side that the up end of male joint 5 is close to holding tank 8.

Referring to the accompanying drawings 1-2 and 4 in the specification, the female joint main body 2 of the embodiment comprises a female joint 11, an inner surface treatment layer 9 is arranged on the inner surface of the female joint 11, an outer surface treatment layer 12 is arranged on the outer surface of the female joint 11, a filling layer 10 is arranged in the center of the upper end face of the female joint 11, the reinforcing device 4 comprises a wear-resistant strip 22, and a fixing strip 21 is fixedly arranged on the outer surface of the wear-resistant strip 22.

Furthermore, the outer surface of the outer surface treatment layer 12 is galvanized, the inside of the filling layer 10 is poured with dehydrated resin, the inner surface of the inner surface treatment layer 9 is an anti-corrosion layer, and the anti-corrosion layer is a composite layer of a passivation film, epoxy resin paint and novolac epoxy paint.

Further, the fixing strips 21 and the wear-resistant strips 22 are distributed on the outer surface of the female joint main body 2 in a criss-cross manner.

The implementation scenario is specifically as follows: fixed surface through wear-resisting strip 22 installs fixed strip 21, and fixed strip 21 and wear-resisting strip 22 are criss-cross form and distribute at the surface of female joint main part 2, be favorable to strengthening the self intensity of female joint 11, and then the loss is prevented, wear-resisting strip 22 is through the wear-resisting characteristic of self simultaneously, avoid in the exploration process foreign object to the direct wearing and tearing of female joint 11, thereby reduce fatigue degree, because the surface of surface treatment layer 12 sets up for the zinc-plating, the inside watering of filling layer 10 has the dewatering resin, the internal surface of internal surface treatment layer 9 is the passive film, epoxy coating and phenolic epoxy coating composite bed, be favorable to strengthening the leakproofness of female joint 11 self.

Referring to the attached

drawings

3 and 5 in the specification, the sealing device 3 of the embodiment includes a sealing ring 13, a second threaded shaft 20 is rotatably mounted on an upper end surface of the sealing ring 13, a second nut 14 is fixedly mounted on an upper end of the second threaded shaft 20, a first threaded shaft 15 is placed on an inner side of the sealing ring 13, a first nut 19 is fixedly mounted on an upper end of the first threaded shaft 15, a second sealing ring 18 is placed below the sealing ring 13, a spacer ring 17 is attached to a lower surface of the second sealing ring 18, and a first sealing ring 16 is attached to a lower surface of the spacer ring 17.

Further, the lower surface of the first nut 19 is attached to the upper surface of the seal ring 13.

Further, the diameters of the first seal ring 16, the spacer ring 17 and the second seal ring 18 are the same, the first seal ring 16 is a modified rubber material member, and the second seal ring 18 is a synthetic rubber material member.

The implementation scenario is specifically as follows: by placing the first seal ring 16, the isolating ring 17 and the second seal ring 18 inside the accommodating groove 8, and the seal ring 13 is adapted to the accommodating groove 8, then because the second threaded hole 7 is adapted to the second threaded shaft 20, and the second threaded shaft 20 is rotatably installed inside the second threaded hole 7, the seal ring 13 is clamped with the accommodating groove 8, and further the first seal ring 16, the isolating ring 17 and the second seal ring 18 are sealed inside the accommodating groove 8, and because the first threaded hole 6 is adapted to the first threaded shaft 15, and the first threaded shaft 15 is rotatably installed inside the first threaded hole 6, the user rotates the first threaded shaft 15, at this time, the lower surface of the first nut 19 is attached to the upper surface of the seal ring 13, and further extrudes the seal ring 13, thereby ensuring the sealing performance of the first seal ring 16, the isolating ring 17 and the second seal ring 18 inside the accommodating groove 8, because first sealing washer 16, spacer ring 17 are the same with the diameter of second sealing washer 18, first sealing washer 16 is the modified rubber material component, second sealing washer 18 is the synthetic rubber material component, and first sealing washer 16 is the modified rubber material component, prevents to use for a long time and causes ageing, and second sealing washer 18 is the synthetic rubber material component, reinforcing mechanical properties, is favorable to prolonging the practical life of device, and spacer ring 17 can prevent that two sealing washers from taking place the bonding of rubber base member, and then ensures drilling rod joint junction leakproofness.

In summary, the following steps: the utility model discloses when using, fixed strip 21 is installed through the outer fixed surface of wear-resisting strip 22, and fixed strip 21 and wear-resisting strip 22 are vertically and horizontally staggered form and distribute at the surface of box main part 2, be favorable to strengthening the self intensity of box 11, and then prevent the loss, with first sealing washer 16, spacer ring 17 and second sealing washer 18 all place in holding tank 8's inside, first threaded shaft 15 rotates the inside of installing at first screw hole 6, second threaded shaft 20 rotates the inside of installing at second screw hole 7, make sealing ring 13 to first sealing washer 16, spacer ring 17 and second sealing washer 18 further extrude, ensure drilling rod articulate leakproofness.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: the utility model discloses in the embodiment drawing, only involve the structure that involves with this disclosed embodiment, other structures can refer to common design, under the conflict-free condition, the utility model discloses same embodiment and different embodiments can the intercombination.

Claims

1. An oil extraction drill pipe joint, comprising a male joint body (1), characterized in that: the outer surface of the male connector main body (1) is rotatably provided with a female connector main body (2), a sealing device (3) is fixedly arranged at the joint of the male connector main body (1) and the female connector main body (2), a reinforcing device (4) is fixedly arranged on the outer surface of the female connector main body (2), the male connector main body (1) comprises a male connector (5), a containing groove (8) is formed in the center of the upper end face of the male connector (5), one side, close to the containing groove (8), of the upper end face of the male connector (5) is uniformly provided with first threaded holes (6), and the other side, close to the containing groove (8), of the upper end face of the male connector (5) is uniformly provided with second threaded holes (7);

the female joint main body (2) comprises a female joint (11), an inner surface treatment layer (9) is arranged on the inner surface of the female joint (11), an outer surface treatment layer (12) is arranged on the outer surface of the female joint (11), a filling layer (10) is arranged at the center of the upper end surface of the female joint (11), the reinforcing device (4) comprises wear-resistant strips (22), and fixing strips (21) are fixedly arranged on the outer surfaces of the wear-resistant strips (22);

sealing device (3) include sealing ring (13), second threaded shaft (20) are installed in the up end rotation of sealing ring (13), the upper end fixed mounting of second threaded shaft (20) has second nut (14), first threaded shaft (15) have been placed to the inboard of sealing ring (13), the upper end fixed mounting of first threaded shaft (15) has first nut (19), second sealing washer (18) have been placed to the below of sealing ring (13), the lower surface laminating of second sealing washer (18) has isolating ring (17), the lower surface laminating of isolating ring (17) has first sealing washer (16).

2. The production drill pipe joint of claim 1, wherein: the outer surface of the male connector (5) and the outer surface of the female connector (11) are provided with threads which are matched with each other.

3. The production drill pipe joint of claim 1, wherein: the outer surface of the outer surface treatment layer (12) is galvanized, the inside of the filling layer (10) is poured with dehydrated resin, and the inner surface of the inner surface treatment layer (9) is an anti-corrosion layer.

4. The production drill pipe joint of claim 1, wherein: first screw hole (6) and first screw shaft (15) looks adaptation, and first screw shaft (15) rotate to be installed in the inside of first screw hole (6), second screw hole (7) and second screw shaft (20) looks adaptation, and second screw shaft (20) rotate to be installed in the inside of second screw hole (7).

5. The production drill pipe joint of claim 1, wherein: first sealing washer (16), spacer ring (17) and second sealing washer (18) all place in the inside of holding tank (8), and sealing ring (13) and holding tank (8) looks adaptation.

6. The production drill pipe joint of claim 1, wherein: the lower surface of the first nut (19) is attached to the upper surface of the sealing ring (13).

7. The production drill pipe joint of claim 1, wherein: the diameters of the first sealing ring (16), the isolating ring (17) and the second sealing ring (18) are the same, the first sealing ring (16) is a modified rubber component, and the second sealing ring (18) is a synthetic rubber component.

8. The production drill pipe joint of claim 1, wherein: the fixing strips (21) and the wear-resistant strips (22) are distributed on the outer surface of the female joint main body (2) in a crisscross mode.