CN215761651U

CN215761651U - Multifunctional drift diameter gauge for oil pipe

Info

Publication number: CN215761651U
Application number: CN202121643078.7U
Authority: CN
Inventors: 武万东; 贾士冕; 王保三; 郑元生
Original assignee: China Petroleum And Chemical Corp Shengli Youtian Branch Zhuangxi Oil Rec Overy Fac; China Petroleum and Chemical Corp
Current assignee: China Petroleum And Chemical Corp Shengli Youtian Branch Zhuangxi Oil Rec Overy Fac; China Petroleum and Chemical Corp
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-02-08
Anticipated expiration: 2031-07-19

Abstract

The utility model relates to the technical field of oilfield development, in particular to an oil pipe multifunctional drift diameter gauge. The oil-coated universal gauge comprises a universal gauge body, a pressure rod, a first spring, a first pressing cap, a pull rod, a leather cup, a piston, an annular oil-coated brush head, a second spring, a plurality of scraping blades, a screw rod, a gasket, an oil storage cavity, a push rod, a second pressing cap, a third spring, a locking nut and a rotating pin. The drift diameter gauge has multiple functions of inner drift diameter of an oil pipe, inner wall scraping, oil coating, corrosion prevention and the like. The drift diameter gauge has the advantages of simple structure, good safety performance and high operation quality, can reduce the maintenance operation frequency, prolong the oil-water maintenance-free period and save the operation amount and labor cost; has higher economic benefit and social benefit, and can be popularized and applied in the oil pipe cleaning and repairing process in the oil field range.

Description

Multifunctional drift diameter gauge for oil pipe

Technical Field

The utility model relates to the technical field of oilfield development, in particular to an oil pipe multifunctional drift diameter gauge.

Background

The drift diameter of the oil pipe is an important process in the process of cleaning and repairing the oil pipe, at present, a drift diameter gauge used in the drift diameter of the oil pipe has a single function, can only detect the straightness and radial deformation of the oil pipe, and cannot treat the oil pipe with the following two problems: firstly, the inner wall of the oil pipe is provided with foreign matters such as point-shaped dirt particles or rust sheets; secondly, the oil pipe is depositing the in-process inner wall short time and appearing the corrosion problem, and these two kinds of quality hidden danger problems need artifical root to carry out inner wall foreign matter clearance and fat liquoring anticorrosive, just can reach oil pipe and dispatch from the factory the requirement for quality, guarantee operation construction well quality, above two kinds of circumstances be a difficult problem that ubiquitous in the present oil pipe washs the restoration, waste time in the working process, hard and occupy personnel more, have great potential safety hazard, effect unsatisfactory simultaneously.

Chinese utility model patent CN205300460U discloses an oil pipe drift diameter gauge, it includes: the hydraulic buffer comprises a hydraulic cylinder body and a piston rod which can be arranged on one side of the hydraulic cylinder body in a telescopic mode; the nylon sleeve pipe can be sleeved on the piston rod in a detachable mode, the piston rod extends out of the nylon sleeve pipe, the outer diameter of the nylon sleeve pipe is larger than that of the cylinder body, and the outer surface of the nylon sleeve pipe is provided with a threaded accommodating groove. The oil pipe drift diameter gauge is used for checking the drift diameter of an oil pipe, the service cycle of the oil pipe, particularly a coating oil pipe, can be prolonged, the impact on a jigger is reduced, the cost of replacing the oil pipe and the jigger is saved, the problem of low construction efficiency caused by the fact that the drift diameter gauge is easy to clamp in the oil pipe is solved, and the personal safety of an operator can be guaranteed. However, the oil pipe drift diameter gauge does not have the functions of scraping and oiling for corrosion prevention.

The Chinese utility model patent CN209355834U discloses an oil pipe drift diameter gauge, which comprises an outer cylinder (1), a sealing cover (2) and a handle (3); the outer cylinder (1) is suitable for detecting the inner drift diameter of the lining oil pipe, the outer cylinder (1) comprises a cylinder wall, and the cylinder wall is enclosed into a cylindrical cavity comprising a first end opening and a second end opening; the sealing cover (2) seals the first end opening of the outer cylinder (1); the handle (3) is fixed on the sealing cover (2). This oil pipe drift diameter gauge's urceolus section of thick bamboo wall encloses into including first end opening and second end open-ended cylindrical cavity, with wait to detect the inside lining oil pipe phase-match to be suitable for detecting this inside lining oil pipe's interior drift diameter, the handle makes things convenient for staff to operate this oil pipe drift diameter gauge, and at the in-process that impels this oil pipe drift diameter gauge and pull out inside lining oil pipe in addition, debris such as the rubber that drops in the inside lining oil pipe can be cleared up to the confined first end of oil pipe drift diameter gauge. But the oil pipe drift diameter gauge does not have the buffer capacity and the functions of oiling and corrosion prevention.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil pipe multifunctional drift diameter gauge which has multiple functions of scraping the inner drift diameter and the inner wall of an oil pipe, coating oil, preventing corrosion and the like; the drift diameter gauge can improve the operation quality, reduce the maintenance operation frequency and prolong the oil-water maintenance-free period.

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

the utility model provides a multifunctional oil pipe drift diameter gauge which comprises a drift diameter gauge body, a pressure rod, a first spring, a first pressing cap, a pull rod, a leather cup, a piston, an annular oiling brush head, a second spring, a plurality of scraping blades, a screw rod, a gasket, an oil storage cavity, a push rod, a second pressing cap, a third spring, a locking nut and a rotating pin.

The pressure rod is fixed at one end of the drift diameter gauge body through a rotating pin, an oil storage cavity is arranged inside the drift diameter gauge body, a first spring, a pull rod and a piston are sequentially connected in the oil storage cavity, and one end of the oil storage cavity is in threaded connection with a first pressure cap; the other end of the oil storage cavity is connected with a second pressing cap; the ejector rod is connected with a third spring, and the third spring is fixed between the second pressing cap and the locking nut.

The annular oiling brush head is installed on one side of the drift diameter gauge body, and a plurality of oil outlets are formed in the joint of the drift diameter gauge body and the annular oiling brush head.

Two ends of the scraping blade are fixed on the drift diameter gauge body by adopting screws, one end of the lower part of the scraping blade is provided with a second spring, and the other end of the lower part of the scraping blade is provided with a gasket; two leather cups are arranged on the drift diameter gauge body.

The pressure bar, the rotating pin, the spring I, the pressure cap I, the pull rod, the piston, the annular oiling brush head and the oil storage cavity form an oiling mechanism, automatic oiling and corrosion prevention can be achieved for the inner wall of an oil pipe, the problem that the inner wall of the oil pipe rusts in storage is avoided, and the product delivery quality is guaranteed.

The two leather cups and the spacer ring form a leather cup mechanism which can increase the air source impact force when the oil pipe is in drift diameter and can evenly wipe and coat the anti-corrosion medium sprayed on the inner wall of the oil pipe by the oiling device.

The scraper blade, the second spring, the screw and the gasket form a scraper mechanism which can clean up the point-shaped dirt particles or the discontinuous rust pieces on the inner wall of the oil pipe to meet the quality requirement of the oil pipe.

The ejector rod, the second pressing cap, the third spring and the locking nut form a buffer mechanism, and the buffer mechanism can reduce the contact collision force of the oil pipe after the drift diameter gauge reaches the other end of the oil pipe in the drift diameter process.

Furthermore, an annular sealing ring is arranged in a center hole of the pressing cap and is matched with the pull rod to play a sealing role, and engine oil in the oil storage cavity is prevented from leaking.

Further, the piston both ends are equipped with the sealing washer, and the oil outlet is sealed under the free state.

Furthermore, the two leather cups are separated by a spacer ring.

Furthermore, be equipped with 4 scraping blade, evenly distributed is on the drift diameter gauge body.

Further, the radius of the pressure rod is larger than the inner diameter of the oil pipe.

Compared with the prior art, the utility model has the following beneficial effects:

the drift diameter gauge has multiple functions of inner drift diameter of an oil pipe, inner wall scraping, oil coating, corrosion prevention and the like. The drift diameter gauge has the advantages of simple structure, good safety performance and high operation quality, can reduce the maintenance operation frequency, prolong the oil-water maintenance-free period and save the operation amount and labor cost; has higher economic benefit and social benefit, and can be popularized and applied in the oil pipe cleaning and repairing process in the oil field range.

Drawings

FIG. 1 is a schematic structural view of an oil pipe multifunctional drift diameter gauge in embodiment 1 of the present invention;

fig. 2 is a cross-sectional view of the structure of fig. 1.

The oil-free scraper comprises a pressure rod 1, an annular sealing ring 2, a spring I3, a pressure cap I4, a pressure cap I5, a pull rod 6, a leather cup 7, a piston 8, a piston sealing ring 9, an oil outlet 10, an annular oiling brush head 11, a spring II 11, a scraping blade I12, a scraping blade II 13, a screw rod 14, a gasket 15, a diameter gauge body 16, an oil storage chamber 17, a push rod 18, a pressure cap II 19, a spring III 20, a locking nut 21, a scraping blade II 22, a scraping blade III 23, a spacer ring 24, a rotating pin 25 and a scraping blade IV.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, and/or combinations thereof, unless the context clearly indicates otherwise.

In order to make the technical solutions of the present invention more clearly understood by those skilled in the art, the technical solutions of the present invention will be described in detail below with reference to specific embodiments.

Example 1

As shown in fig. 1, the multifunctional oil pipe drift diameter gauge comprises a pressure rod 1, a pull rod annular sealing ring 2, a spring I3, a pressure cap I4, a pull rod 5, a leather cup 6, a piston 7, a piston sealing ring 8, an oil outlet 9, an annular oiling brush head 10, a spring II 11, a scraping blade I12, a screw 13, a gasket 14, a drift diameter gauge body 15, an oil storage chamber 16, a push rod 17, a pressure cap II 18, a spring III 19, a locking nut 20, a scraping blade II 21, a scraping blade III 22, a spacer ring 23, a rotating pin 24 and a scraping blade IV 25.

The pressing rod 1 is fixed at one end of the drift diameter gauge body 15 through a rotating pin 24, an oil storage cavity 16 is arranged inside the drift diameter gauge body 15, a spring I3, a pull rod 5 and a piston 7 in the oil storage cavity 16 are sequentially connected, and one end of the oil storage cavity 16 is in threaded connection with a pressing cap I4; the other end of the oil storage cavity 16 is connected with a second pressing cap 18; the ejector rod 17 is connected with a third spring 19, and the third spring 19 is fixed between a second pressing cap 18 and a lock nut 20. The annular oiling brush head 10 is installed on one side of the drift diameter gauge body 15, and a plurality of oil outlets 9 are formed in the joint of the drift diameter gauge body 15 and the annular oiling brush head 10. Two ends of the scraping blade are fixed on a drift diameter gauge body 15 by adopting a screw rod 13, one end of the lower part of the scraping blade is provided with a second spring 11, and the other end of the lower part of the scraping blade is provided with a gasket 14; the first scraping blade 12, the second scraping blade 21, the third scraping blade 23 and the fourth scraping blade 25 are uniformly distributed on the drift diameter gauge body 15; two leather cups 6 are arranged on the drift diameter gauge body 15 and are separated by a spacer ring 23. An annular sealing ring 2 is arranged in the central hole of the first pressing cap 4 and is matched with the pull rod 5 to play a sealing role, and engine oil in the oil storage cavity 16 is prevented from seeping out. Piston 7 both ends are equipped with piston seal 8, and the oil outlet is sealed under the free state. The radius of the pressure lever 1 is larger than the inner diameter of the oil pipe.

The working principle of the oil pipe multifunctional drift diameter gauge is as follows:

firstly, the drift diameter gauge of the embodiment is placed in an oil pipe, and one end of a buffer mechanism consisting of a mandril 17, a second pressing cap 18, a third spring 19 and a locking nut 20 firstly extends into a pipeline. And secondly, a scraper mechanism consists of a scraping blade, a spring II 11, a screw rod 13 and a gasket 14, and because the diameters of the scraping blade I12, the scraping blade II 21, the scraping blade III 23 and the scraping blade IV 25 are slightly larger than the inner diameter of the oil pipe in a free state, the scraping blade is compressed under the action of the spring II 11, so that the scraping blade is tightly attached to the inner wall of the oil pipe, and the drift diameter gauge is pushed forwards at the moment, so that point scale particles or discontinuous rust sheets on the inner wall of the oil pipe can be cleaned.

The latus rectum rule continues the antedisplacement, after the inside back of latus rectum rule depression bar 1 entering oil pipe, because the oil pipe internal diameter is less than depression bar 1 radius, force depression bar 1 to rotate forward along swivel pin 24, because lever principle, compression spring 3 promptly, and drive pull rod 5 and piston 7 antedisplacement, oil outlet 9 on the body 15 will be opened this moment, make the inside machine oil of body 15 flow in annular oiling brush head 10 through oil outlet 9, can carry out the fat liquoring to the oil pipe inner wall anticorrosive, after the completion of the latus rectum rule body 15 latus rectum, under spring 3 effects, pull rod 5 and piston 7 reconversion, plug up oil outlet 9 on the body 15 again, prevent inside machine oil from oozing.

Because the power supply that the latus rectum scraping adopted is air compression gas, thrust when scraping in order to guarantee the latus rectum, it has leather cup 6 to design on body 15, and separate with spacer ring 23, guarantee at the inside sealed effect of oil pipe, simultaneously, after scraping in order to prevent the latus rectum, the impact force is too big, it has buffer mechanism to design at the latus rectum gage rear portion, accomplish the latus rectum when the latus rectum gage, after releasing the oil pipe internal diameter, on the latus rectum gage ejector pin 17 at first pushed up the latus rectum gage support, ejector pin 17 can compress spring three 19 this moment, play the cushioning effect, become small along with thrust, under spring three 19 effects, latus rectum gage ejector pin 17 reconversion.

All parts and parts which are not discussed in the utility model and the connection mode of all parts and parts in the application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Claims

1. A multifunctional oil pipe drift diameter gauge is characterized by comprising a drift diameter gauge body, a pressure rod, a first spring, a first pressing cap, a pull rod, a leather cup, a piston, an annular oiling brush head, a second spring, a plurality of scraping blades, a screw rod, a gasket, an oil storage cavity, a push rod, a second pressing cap, a third spring, a locking nut and a rotating pin;

the pressure rod is fixed at one end of the drift diameter gauge body through a rotating pin, an oil storage cavity is arranged inside the drift diameter gauge body, a first spring, a pull rod and a piston are sequentially connected in the oil storage cavity, and one end of the oil storage cavity is in threaded connection with a first pressure cap; the other end of the oil storage cavity is connected with a second pressing cap; the ejector rod is connected with a third spring, and the third spring is fixed between the second pressing cap and the locking nut;

an annular oiling brush head is arranged on one side of the drift diameter gauge body, and a plurality of oil outlet holes are formed in the joint of the drift diameter gauge body and the annular oiling brush head;

2. The multifunctional drift diameter gauge for the oil pipe as claimed in claim 1, wherein an annular sealing ring is arranged in a central hole of the pressing cap and is matched with the pull rod to play a sealing role so as to prevent engine oil in the oil storage chamber from leaking out.

3. The multifunctional drift diameter gauge for the oil pipe as claimed in claim 1, wherein sealing rings are arranged at two ends of the piston to seal the oil outlet hole in a free state.

4. The multifunctional drift diameter gauge for the oil pipe as claimed in claim 1, wherein the two leather cups are separated by a spacer ring.

5. The multifunctional drift diameter gauge for the oil pipe as claimed in claim 1, wherein 4 scraping blades are arranged and evenly distributed on the drift diameter gauge body.

6. The oil pipe multifunctional drift diameter gauge of claim 1, wherein the radius of the pressure rod is larger than the inner diameter of the oil pipe.