CN112145825A

CN112145825A - Oil pipe for oil exploitation

Info

Publication number: CN112145825A
Application number: CN202010927085.3A
Authority: CN
Inventors: 席赫
Original assignee: Individual
Current assignee: DAQING HUAYU PETROLEUM MACHINERY MANUFACTURING CO LTD
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2020-12-29
Anticipated expiration: 2040-09-07
Also published as: CN112145825B

Abstract

The invention relates to the technical field of petroleum industry, and discloses an oil pipe for oil exploitation, which comprises an outer pipe, wherein one end of the outer pipe is provided with a slot, the other end of the outer pipe is fixedly provided with an insert block, a sleeve is movably arranged in the outer pipe, one end of the sleeve is fixedly provided with a snap ring, an inner pipe is movably arranged in the sleeve, the middle part of the inner pipe is fixedly provided with a connecting block, two ends of the connecting block are fixedly connected with first springs, the other ends of the first springs are fixedly connected to a first end, and the other ends of the first end are fixedly connected with a rebound plate. This oil pipe for oil development is equipped with slot and inserted block through the both sides at the outer tube, and the joint between slot and the inserted block, is convenient for aim at two oil pipes when the concatenation welding to oil pipe, avoids because the influence of wind big class foreign factor, and the difficult pipe central line of managing well is adjusted well with the well internal pipe central line of extension oil pipe central line, causes the screw thread to twist, screws out the difficulty, can't twist even.

Description

Oil pipe for oil exploitation

Technical Field

The invention relates to the technical field of petroleum industry, in particular to an oil pipe for petroleum exploitation.

Background

The oil pipeline (also called pipeline, pipeline) is composed of oil pipe and its accessories, and according to the requirements of technological process, it is equipped with correspondent oil pump unit, and designed and installed into a complete pipeline system for completing the tasks of oil receiving, unloading and transferring, namely a pipeline system for transporting petroleum and petroleum products, which mainly comprises a petroleum pipeline, a petroleum station and other auxiliary related equipment, is one of the main equipment in the petroleum storage and transportation industry, is also the most main transportation equipment for crude oil and petroleum products, compared with the railway and highway oil transportation which belongs to the land transportation mode, the pipeline oil transportation has the characteristics of large transportation capacity, good tightness, low cost, high safety coefficient and the like, the pipe of the oil transportation pipeline is generally a steel pipe, and is connected into a long-distance pipeline by using connecting devices such as welding, flanges and the like, and a valve is used for opening and closing control and flow regulation.

At present, an oil pipe of an oil pumping well in an oil field is formed by connecting a plurality of oil pipes with the length of about 9.6 meters through threads, the oil pipe is hung above a wellhead by a derrick through a pulley in the lifting operation of the oil pipe, a pipe wrench is used for screwing in and screwing out a screw sleeve after aligning an inner pipe of the well, and due to the influence of external factors such as high wind and the like, the central line of a lengthened oil pipe is difficult to align with the central line of the inner pipe of the well, so that the threads are difficult to screw in and screw out and even cannot be screwed in.

Disclosure of Invention

The invention provides an oil pipe for oil exploitation, which has the advantages of convenience in alignment welding, good device connectivity, convenience in reducing deformation of the oil pipe and a heat preservation function, and solves the problems in the background art.

The invention provides the following technical scheme: the utility model provides an oil pipe for oil development, includes the outer tube, the slot has been seted up to the one end of outer tube, the other end fixed mounting of outer tube has the inserted block, the inside movable mounting of outer tube has the sleeve pipe, sheathed tube one end fixed mounting has the snap ring, the inside movable mounting of sheathed tube has the inner tube, the middle part fixed mounting of inner tube has the connecting block, the first spring of the equal fixedly connected with in both ends of connecting block, the other end fixed connection of first spring is on first end, the other end fixedly connected with rebound board of first end, the other end fixed connection of rebound board is on the second end, the middle part fixedly connected with second spring of second end and first end, the middle part fixed mounting of second spring has the connecting rod.

Preferably, the inner pipe is provided with a cavity inside, the cavity is a circular cavity, and the cavity is arranged in the middle of the side wall of the inner pipe at equal intervals.

Preferably, the slot and the inserted block are equidistant and surround the outside a week of installing at the outer tube, just the width value and the length value of slot and inserted block are all unanimous, slot and inserted block can carry out the joint installation.

Preferably, the snap ring is a rubber ring, and a clamping groove movably clamped with the insert block is formed in the outer side of the snap ring.

Preferably, the rebound plate is an arc-shaped plate with the middle part bent downwards, and the rebound plate is arranged around the middle part of the first end and the second end.

Preferably, the second spring and the connecting rod are arranged in the spacing gap of the rebound plate, and the second spring and the connecting rod are arranged around the first end head and the second end head at equal intervals.

Preferably, the number of the first springs, the first ends and the second ends is two, and the two first springs, the first ends and the second ends are symmetrically arranged on two sides of the connecting block and are sleeved at two ends of the outer side of the inner pipe.

Preferably, the first spring is connected to the outer side of the connecting block for a circle, and the diameter values of the first spring and the second spring are smaller than the thickness value of the side wall of the first end head.

The invention has the following beneficial effects:

1. this oil pipe for oil development is equipped with slot and inserted block through the both sides at the outer tube, and the joint between slot and the inserted block, is convenient for aim at two oil pipes when the concatenation welding to oil pipe, avoids because the influence of wind big class foreign factor, and the difficult pipe central line of managing well is adjusted well with the well internal pipe central line of extension oil pipe central line, causes the screw thread to twist, screws out the difficulty, can't twist even.

2. This oil pipe for oil development promotes sleeve pipe and snap ring through advancing of inserted block and slides in the inside of outer tube, seals the inside gap of device, is convenient for guarantee to weld the inside leakproofness of back device through welding set to the joint gap department of oil pipe afterwards, improves the transport safety of device.

3. This oil pipe for oil development has first end and second end through the outside movable mounting at the inner tube, and the middle part at first end and second end is connected through rebound board, second spring and connecting rod, is convenient for when the outer wall of inner tube takes place to swell, kick-backs the extrusion through rebound board, second spring and connecting rod to the inner tube, prevents the inner tube to continue deformation, guarantees the security of oil pipe in using this in-process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the interior of the structure of the present invention;

FIG. 3 is an exploded view of the structure of the present invention;

FIG. 4 is a cross-sectional view of the inner tube of the present invention;

FIG. 5 is a schematic view of a first end of the present invention;

FIG. 6 is a schematic view of the present invention at A.

In the figure: 1. an outer tube; 2. a slot; 3. inserting a block; 4. a sleeve; 5. a snap ring; 6. an inner tube; 7. connecting blocks; 8. a cavity; 9. a first spring; 10. a first end; 11. a second end; 12. a rebound board; 13. a second spring; 14. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, an oil pipe for oil exploitation comprises an outer pipe 1, a slot 2 is formed at one end of the outer pipe 1, an insert 3 is fixedly installed at the other end of the outer pipe 1, the slot 2 and the insert 3 are installed around the outer side of the outer pipe 1 at equal intervals, the width and length of the slot 2 and the insert 3 are the same, the slot 2 and the insert 3 can be installed in a clamping manner, the slot 2 and the insert 3 are arranged on two sides of the outer pipe 1 and clamped between the slot 2 and the insert 3, so that two oil pipes can be aligned when the oil pipe is spliced and welded, the problem that due to the influence of external factors such as wind, the central line of a lengthened oil pipe is difficult to align with the central line of the pipe in a well, so that the screwing-in and screwing-out of threads are difficult or even impossible is solved, a sleeve 4 is movably installed inside the outer pipe 1, a clamp ring 5 is fixedly installed at one end of the sleeve, the outer side of the clamping ring 5 is provided with a clamping groove movably clamped with the inserting block 3, the sleeve 4 and the clamping ring 5 are pushed to slide in the outer pipe 1 by the advancing of the inserting block 3, a gap in the device is sealed, the sealing performance in the device after welding of a connecting gap of an oil pipe through a welding device is convenient to ensure, the conveying safety of the device is improved, the inner pipe 6 is movably arranged in the sleeve 4, the inner pipe 6 is provided with a cavity 8, the cavity 8 is a circular cavity and is arranged in the middle of the side wall of the inner pipe 6 at equal intervals, the cavity 8 is convenient for improving the heat preservation and insulation functions of the inner pipe 6, the phenomenon that the heat of the oil in the oil conveying process of the inner pipe 6 is excessively lost is avoided, the oil conveying quality is ensured, the middle part of the inner pipe 6 is fixedly provided with the connecting block 7, the two ends of the connecting block 7 are both fixedly connected with, the diameter values of the first spring 9 and the second spring 13 are both smaller than the thickness value of the side wall of the first end 10, the diameter values of the first spring 9 and the second spring 13 are both eight centimeters, the thickness value of the side wall of the first end 10 is ten centimeters, and the diameter values of the first spring 9 and the second spring 13 are both smaller than the thickness value of the side wall of the first end 10, so that the first spring 9 and the second spring 13 cannot influence the movement of the first end 10 inside the inner tube 6 in the normal telescopic transformation process, the first end 10 and the second end 11 can conveniently protect the inner tube 6, the other end of the first spring 9 is fixedly connected to the first end 10, the other end of the first end 10 is fixedly connected with the rebound plate 12, the rebound plate 12 is an arc-shaped plate with a downward bent middle part, the rebound plate 12 surrounds the middle part of the first end 10 and the middle part of the second end 11 for a circle, and the middle part of the rebound plate 12 is bent downward, the outer end of the inner tube 6 is elastically supported by the middle part of the rebound plate 12, so that the inner tube 6 is prevented from being excessively deformed, the conveying safety of the inner tube 6 is ensured, the other end of the rebound plate 12 is fixedly connected to the second end 11, the middle parts of the second end 11 and the first end 10 are fixedly connected with a second spring 13, the second spring 13 and a connecting rod 14 are installed in a gap of the rebound plate 12, the second spring 13 and the connecting rod 14 are installed around the first end 10 and the second end 11 at equal intervals, the first end 10 and the second end 11 are elastically connected by the second spring 13 and the connecting rod 14, the strength of the arc of the rebound plate 12 is kept, the strength of the rebound plate 12 is prevented from being reduced after the rebound plate 12 is in contact deformation with the inner tube 6, the explosion prevention of the device is ensured, the connecting rod 14 is fixedly installed in the middle part of the second spring 13, and the number of the first spring 9, the first end 10 and the second end 11 is two, two first springs 9, first end 10 and second end 11 symmetrical installation are in the both sides of connecting block 7 to cup joint at the outside both ends of inner tube 6, and two first springs 9, first end 10 and second end 11 are installed respectively at the outer wall both ends of inner tube 6, are convenient for carry out outside pressurization to inner tube 6, avoid the inside expansion rupture that takes place because of pressure intensity is too big of inner tube 6, have guaranteed the normal work safety of inner tube 6.

The theory of operation, with two oil pipes hoisting through loop wheel machine etc. and lift, dock the head and the tail of two oil pipes afterwards, carry out the joint through slot 2 and inserted block 3, and promote sleeve pipe 4 and snap ring 5 through advancing of inserted block 3 and slide in the inside of outer tube 1, seal the inside gap of device, weld the joint gap department of oil pipe through welding set afterwards, when using, the inside cavity 8 of seting up of inner tube 6 can keep warm to the oil of carrying in the oil pipe, reduce the calorific loss in the oil, and when oil pipe's deformation takes place for the increase of oil pipe's inside pressure, the outer wall of inner tube 6 takes place to swell, take place the extrusion to rebound board 12, through rebound board 12, second spring 13 and connecting rod 14 are to inner tube 6, carry out the rebound extrusion, prevent inner tube 6 to continue to deform, guarantee the security of oil pipe at this in-process of use, can.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. An oil pipe for oil development, includes outer tube (1), its characterized in that: the pipe joint is characterized in that one end of the outer pipe (1) is provided with a slot (2), the other end of the outer pipe (1) is fixedly provided with an insert block (3), the inner movable mounting of the outer pipe (1) is provided with a sleeve (4), one end of the sleeve (4) is fixedly provided with a snap ring (5), the inner movable mounting of the sleeve (4) is provided with an inner pipe (6), the middle part of the inner pipe (6) is fixedly provided with a connecting block (7), both ends of the connecting block (7) are fixedly connected with first springs (9), the other end of each first spring (9) is fixedly connected onto a first end (10), the other end of each first end (10) is fixedly connected with a rebound plate (12), the other end of each rebound plate (12) is fixedly connected onto a second end (11), and the middle parts of the second end (11) and the first end (10) are fixedly connected with a second spring (, and the middle part of the second spring (13) is fixedly provided with a connecting rod (14).

2. The oil pipe for oil extraction according to claim 1, wherein: the inner pipe is characterized in that a cavity (8) is formed in the inner part of the inner pipe (6), the cavity (8) is a circular cavity, and the cavity is formed in the middle of the side wall of the inner pipe (6) at equal intervals.

3. The oil pipe for oil extraction according to claim 1, wherein: slot (2) and inserted block (3) are equidistant encircle install outside a week in outer tube (1), just the width value and the length value of slot (2) and inserted block (3) are all unanimous, slot (2) and inserted block (3) can carry out the joint installation.

4. The oil pipe for oil extraction according to claim 1, wherein: the clamping ring (5) is a rubber ring, and a clamping groove movably clamped with the inserting block (3) is formed in the outer side of the clamping ring (5).

5. The oil pipe for oil extraction according to claim 1, wherein: the rebound plate (12) is an arc-shaped plate with the middle part bent downwards, and the rebound plate (12) is arranged around the middle part of the first end (10) and the second end (11).

6. The oil pipe for oil extraction according to claim 1, wherein: the second spring (13) and the connecting rod (14) are arranged in a gap of the rebound plate (12), and the second spring (13) and the connecting rod (14) are arranged around the first end (10) and the second end (11) at equal intervals.

7. The oil pipe for oil extraction according to claim 1, wherein: the number of the first springs (9), the first end heads (10) and the second end heads (11) is two, and the first springs (9), the first end heads (10) and the second end heads (11) are symmetrically arranged on two sides of the connecting block (7) and are sleeved at two ends of the outer side of the inner pipe (6).

8. An oil pipe for oil recovery as defined in claim 7, wherein: first spring (9) are connected in the outside of connecting block (7) a week, the diameter value of first spring (9), second spring (13) is less than the lateral wall thickness value of first end (10).