CN217583527U

CN217583527U - Seamless steel pipe for deep well

Info

Publication number: CN217583527U
Application number: CN202221490198.2U
Authority: CN
Inventors: 胡顺珍; 刘守已; 李超; 孙特; 赵真; 李守强; 胡忠青; 梁慎扬; 张宏凯
Original assignee: Linyi Jinzhengyang Seamless Steel Tube Co ltd
Current assignee: Linyi Jinzhengyang Seamless Steel Tube Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-10-14
Anticipated expiration: 2032-06-15

Abstract

The utility model discloses a seamless steel pipe for deep well, including outside first pipe and second pipe, first joint and second joint have been welded respectively to the inboard of first pipe and second pipe, the utility model discloses when butt joint installation, it has one first joint and second joint to divide equally to divide at the both ends of first pipe or second pipe, in order to constitute a complete well casing, when the equipment, upwards install and low tube step by step, when rotating, the drilling machine grasps last one-level pipeline through the inside joint of card at the constant head tank, rotate with the top of pipeline spiro union at the bottom pipeline, readjust the pipeline spiro union tight after the spiro union is accomplished, make the draw-in groove correspond the position to the constant head tank, with locating piece positioning assembly at last, the effectual current seamless steel pipe of deep well of having solved adopts the welded structure installation more, the trouble problem of work progress, or the mode installation of simple spiro union, consequently under the problem that the produced rotation strength can influence the joint effect of pipeline of tub in-process.

Description

Seamless steel pipe for deep well

Technical Field

The utility model relates to a deep well construction field, specific seamless steel pipe for deep well that says so.

Background

The deep well is a well for obtaining deep underground water, which is common in arid areas such as northwest of China and is mainly used for obtaining deep underground water (namely water below 20 meters underground), and in the process of building the deep well, the conventional seamless steel pipe of the deep well is mostly installed by adopting a welded structure or a simple screw connection mode, but in the process of pipe laying, resistance can be overcome by small operations such as vibration, lifting, overturning and the like due to resistance, so that the rotating force in the process can influence the connection effect of pipelines.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a seamless steel pipe for deep well to the not enough of prior art.

The utility model provides a technical scheme that its technical problem adopted is: a seamless steel pipe for a deep well comprises an external first pipe and an external second pipe, wherein the first pipe and the second pipe are two stages of vertical butt joint of seamless steel pipes for the deep well, and a first joint and a second joint are welded on the inner sides of the first pipe and the second pipe respectively; the first joint and the second joint are in threaded connection, and a positioning block is assembled inside the first joint and the second joint; the second connector comprises a fourth pipe, a conical guide ring is welded on the outer surface of the fourth pipe, positioning grooves are uniformly formed in the outer surface of the guide ring, the number of the positioning grooves is preferably 6 under the general condition of deep well pipe diameters, and the number of the positioning grooves is increased according to the increase of the pipe diameters under the special pipe diameter condition.

Furthermore, the first joint comprises a third pipe, a nut structure is welded at the right end of the third pipe, and internal threads are formed in the inner surface of the nut structure.

Furthermore, the outer surface of the left end of the fourth pipe is provided with an external thread, and the external thread is in threaded connection with the inner surface of the internal thread.

Furthermore, a clamping groove is formed in the outer surface of the nut structure, a screw hole is formed in the inner surface of the clamping groove, and the positioning block is assembled on the inner surface of the clamping groove.

Furthermore, the positioning block comprises an engaging block, a fixing block is welded at the left end of the engaging block, a bolt is sleeved on the outer surface of the fixing block, and the bolt is in threaded connection with the inner surface of the screw hole.

Further, the inner diameters and the outer diameters of the first pipe, the second pipe, the third pipe and the fourth pipe are the same.

The utility model has the advantages that: the utility model discloses a seamless steel pipe and butt-joint structural for deep well that has first joint and second and connect has been set up, when the butt joint installation, it has a first joint and second to connect to divide equally at the both ends of first pipe or second pipe, in order to constitute a complete well casing, when the equipment, upwards install and low tube step by step, when rotating, the drilling machine is through catching last one-level pipeline at the inside joint of constant head tank, rotate the top with the pipeline spiro union at the pipeline of bottom, readjust the pipeline spiro union after the spiro union is accomplished, make the draw-in groove correspond to the position of constant head tank, at last with locating piece positioning, the effectual current seamless steel pipe of deep well that has solved adopts welded structure installation more, the trouble problem of work progress, or the mode installation of simple spiro union, consequently, the produced rotation power can influence the problem of the joint effect of pipeline at the low tube in-process.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic view of the joint structure cutting assembly of the present invention.

Description of the reference numerals: 1. the pipe joint comprises a first pipe, a second pipe, a first joint, a third pipe, a nut structure, a screw thread, an internal thread, a clamping groove, a screw hole, a second joint, a fourth pipe, a clamping groove, a screw hole, a guide ring, a second joint, a positioning groove, a positioning block 51, an engaging block 52, a fixing block, a positioning block 53 and a bolt.

Detailed Description

The invention will be further described with reference to specific examples, which are intended to be illustrative only and not to limit the scope of the invention. Furthermore, it should be understood that various changes and modifications can be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Referring to fig. 1-3, the present invention is a schematic structural diagram of a seamless steel pipe for deep wells, including an external first pipe 1 and a second pipe 2, the first pipe 1 and the second pipe 2 are two-stage of upper and lower butt joint of the seamless steel pipe for deep wells, respectively, and a first joint 3 and a second joint 4 are welded on the inner sides of the first pipe 1 and the second pipe 2, respectively; the first joint 3 and the second joint 4 are screwed together, and a positioning block 5 is assembled inside the first joint 3 and the second joint 4; the second joint 4 comprises a fourth pipe 41, a conical guide ring 43 is welded on the outer surface of the fourth pipe 41, positioning grooves 44 are uniformly formed in the outer surface of the guide ring 43, the number of the positioning grooves 44 is preferably 6 under the general condition of the diameter of the deep well, and the number of the positioning grooves 44 is increased according to the increase of the diameter of the deep well under the special requirement of the diameter of the deep well.

The utility model discloses a seamless steel pipe and butt joint structure for deep well that has first joint 3 and second joint 4 has been set up, when the butt joint installation, it has one first joint 3 and second joint 4 to divide equally to divide at first pipe 1 or the both ends of second pipe 2, with constituting a complete well casing, when the equipment, upwards install and low tube step by step, when rotating, the drilling machine grasps last one-level pipeline through the inside joint of card at constant head tank 44, rotate the top with the pipeline spiro union at the bottom pipeline, readjust the pipeline spiro union tight after the spiro union is accomplished, make draw-in groove 34 correspond the position of constant head tank 44, at last with locating piece 5 positioning, the effectual current seamless steel pipe of deep well of having solved adopts the welded structure installation more, the trouble problem of work progress, or the mode installation of simple spiro union, consequently the problem of the joint effect that the produced rotation strength can influence the pipeline under the tub of in-process.

First joint 3 includes third pipe 31, and the right-hand member welding of third pipe 31 has nut structure 32, and the internal surface of nut structure 32 is seted up there is internal thread 33, and first joint 3 compares the problem that has increased installation locating piece 5 with current screw thread mounting structure for it is stable to assemble the location with both ends tube head.

The outer surface of the left end of the fourth pipe 41 is provided with an external thread 42, the external thread 42 is screwed on the inner surface of the internal thread 33, and the conical guide ring 43 is a structure design with a pointed downward resistance, and ensures the effect of positioning the equipment jaws when the positioning block 5 is locked and installed.

The outer surface of the nut structure 32 is provided with a clamping groove 34, the inner surface of the clamping groove 34 is provided with a screw hole 35, and the positioning block 5 is assembled on the inner surface of the clamping groove 34.

The positioning block 5 comprises an engaging block 51, a fixing block 52 is welded at the left end of the engaging block 51, a bolt 53 is sleeved on the outer surface of the fixing block 52, the bolt 53 is screwed on the inner surface of the screw hole 35, the number of the positioning blocks 5 used is the same as the number of the clamping grooves 34, and the positioning blocks also need to be arranged according to the change of pipe diameters.

The first tube 1, the second tube 2, the third tube 31 and the fourth tube 41 have the same inner and outer diameters.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A seamless steel pipe for deep water wells, comprising an outer first pipe (1) and a second pipe (2), the first pipe (1) and the second pipe (2) being two stages of butt-joint of the seamless steel pipe for deep water wells up and down, respectively, characterized in that: a first joint (3) and a second joint (4) are respectively welded on the inner sides of the first pipe (1) and the second pipe (2); the first joint (3) and the second joint (4) are screwed together, and a positioning block (5) is assembled inside the first joint (3) and the second joint (4); the second connector (4) comprises a fourth pipe (41), a conical guide ring (43) is welded on the outer surface of the fourth pipe (41), positioning grooves (44) are uniformly formed in the outer surface of the guide ring (43), the number of the positioning grooves (44) is preferably 6 under the universal condition of the pipe diameter of the deep well, and the number of the positioning grooves (44) is increased according to the increase of the pipe diameter under the requirement of special pipe diameter conditions.

2. A seamless steel pipe for deep wells according to claim 1, wherein: the first connector (3) comprises a third pipe (31), a nut structure (32) is welded at the right end of the third pipe (31), and internal threads (33) are formed in the inner surface of the nut structure (32).

3. A seamless steel pipe for deep wells according to claim 2, wherein: and the outer surface of the left end of the fourth pipe (41) is provided with an external thread (42), and the external thread (42) is screwed on the inner surface of the internal thread (33).

4. A seamless steel pipe for deep wells according to claim 2, wherein: the outer surface of the nut structure (32) is provided with a clamping groove (34), the inner surface of the clamping groove (34) is provided with a screw hole (35), and the positioning block (5) is assembled on the inner surface of the clamping groove (34).

5. A seamless steel pipe for deep wells according to claim 4, wherein: the positioning block (5) comprises an engaging block (51), a fixing block (52) is welded at the left end of the engaging block (51), a bolt (53) is sleeved on the outer surface of the fixing block (52), and the bolt (53) is screwed on the inner surface of the screw hole (35).

6. A seamless steel pipe for deep wells according to claim 1, wherein: the inner diameters and the outer diameters of the first pipe (1), the second pipe (2), the third pipe (31) and the fourth pipe (41) are the same.