High-performance steel oil casing

Abstract

The utility model belongs to the field of oil casing pipes, and provides a high-performance steel oil casing pipe which comprises an oil casing pipe body, and an opening is formed in the middle of the top in the oil casing pipe body. According to the petroleum casing pipe, an operator can observe the state in the petroleum casing pipe body irregularly through the observation window, when sampling is carried out or the petroleum casing pipe body is blocked and needs to be maintained, an external valve connected with the petroleum casing pipe body is closed, the fixing bolt is rotated after closing, the fixing bolt is rotated out of the inner threaded hole, and then the petroleum casing pipe body is fixed. According to the petroleum casing pipe, the fixing of the sealing cover is removed, and then the sealing cover is taken down, so that an operator can conveniently sample from the interior of the petroleum casing pipe main body, can conveniently observe and sample the petroleum state in the petroleum casing pipe main body, and can conveniently dredge when the interior of the petroleum casing pipe main body is blocked; and the practicability of the petroleum casing pipe is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of petroleum casing, concretely is a kind of high-performance steel petroleum casing. BACKGROUND

[0002] Petroleum casing is the lifeline of maintaining oil well operation, due to different geological conditions, the stress state is complex in well, pull, compression, bending, torsional stress comprehensive action acts on pipe body, this to the quality of casing itself proposes higher requirement, once casing itself is damaged due to some reasons, it can lead to the production reduction of whole well, even scrap;

[0003] Most of the existing petroleum casing cannot protect the outside of the petroleum casing, and cannot buffer the impact vibration force, which increases the wear degree of the petroleum casing during use, thereby reducing the service life of the petroleum casing. And most of the existing petroleum casing is not convenient for the operator to observe and sample the oil state inside the petroleum casing, and cannot help the operator to dredge when the petroleum casing is blocked, thereby reducing the practicality of the petroleum casing. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a kind of high-performance steel petroleum casing, to solve the problem, such as the external protection of petroleum casing cannot be carried out and the oil state inside the petroleum casing is not convenient for operator to observe and sample in prior art.

[0005] A kind of high-performance steel petroleum casing, including petroleum casing main body, the middle position of the top of the petroleum casing main body is provided with opening, the outside of the petroleum casing main body is wrapped with the protection assembly that can protect the petroleum casing main body, the middle position of the top of the petroleum casing main body is installed with the observation sampling assembly that can be convenient for operator to observe oil state and sample.

[0006] Preferably, the top of the inside both sides of the protection assembly is uniformly provided with multiple groups of sliding grooves, the inside of the sliding groove is slidably connected with sliding block, and the sliding block is fixedly connected with the both sides of the petroleum casing main body, the both sides of the bottom of the protection assembly are uniformly hinged with multiple groups of telescopic rods, and the end away from the protection assembly of telescopic rod is hingedly connected with the bottom of the petroleum casing main body, the outside of the telescopic rod is provided with first spring, and the both ends of first spring are connected with the inside of the petroleum casing main body and the protection assembly respectively.

[0007] Preferably, four groups of internal thread holes are arranged at the middle position of the top of the petroleum casing body, an observation and sampling assembly is arranged at the middle position of the top of the petroleum casing body, a sealing cover is fixedly installed at the middle position of the inside of the observation and sampling assembly, the sealing cover is matched with the opening, an observation window is fixedly installed at the middle position of the inside of the sealing cover, and fixed bolts are symmetrically arranged at both ends of the inside of the observation and sampling assembly and matched with the internal thread holes.

[0008] Preferably, a through hole is arranged at the middle position of the top of the protection assembly and matched with the observation and sampling assembly.

[0009] Preferably, fixed plates are fixedly installed at the bottoms on both sides of the first spring, and a plurality of fixed holes are arranged at the middle position of the inside of the fixed plate.

[0010] Preferably, mounting holes are symmetrically arranged at both ends of the inside of the observation and sampling assembly and matched with the fixed bolts, the material of the observation window is high-pressure-resistant observation window glass, and the observation window is matched with the opening.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] 1、The utility model discloses a protection assembly is used for wrapping the petroleum casing body, when the petroleum casing body meets the impact or the sway of outside, vibration is produced, the force of vibration is used to drive the slider to compress the second spring, the petroleum casing body is used to drive the first spring to compress, then the elastic recovery force of the first spring and the second spring is used to drive the petroleum casing body to reset, not only can the device protect the outside of the petroleum casing body, but also can buffer the vibration force of impact, reduce the damage of the petroleum casing body when using, and further improve the service life of the petroleum casing body.

[0013] 2、The utility model discloses an observation window is used for the operator to observe the state of the inside of the petroleum casing body from time to time, when sampling or the petroleum casing body needs to be maintained because of blockage, the external valve connected with the petroleum casing body is closed, after closing, the fixed bolt is rotated and is taken out from the inside of the internal thread hole, the fixing of the sealing cover is released, then the sealing cover is taken down, the operator can take sample from the inside of the petroleum casing body, not only can the operator observe and sample the oil in the petroleum casing body, but also can dredge when the petroleum casing body is blocked, and further improve the practicability of the petroleum casing. ACCURACY

[0014] Figure 1 It is a front view of the sectional structure of the utility model;

[0015] Figure 2 It is a side view of the present utility model;

[0016] Figure 3 It is a side view of the present utility model; Figure 2 It is an enlarged structure diagram of A of the present utility model.

[0017] In the figure: 1, petroleum casing body; 2, protection assembly; 20, sliding groove; 21, telescopic rod; 22, first spring; 23, fixed plate; 24, sliding block; 25, second spring; 3, observation sampling assembly; 30, fixed bolt; 31, sealing cover; 32, observation window; 33, opening; 34, internal thread hole. DETAILED DESCRIPTION

[0018] The embodiments of the present utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0019] As shown in the figure: Figures 1 to 3

[0020] Example one: the present utility model provides a kind of high-performance steel petroleum casing, including petroleum casing body 1, the middle position of the top of petroleum casing body 1 is provided with opening 33, the outside of petroleum casing body 1 is wrapped with protection assembly 2 that can protect petroleum casing body 1, and the middle position of the top of petroleum casing body 1 is equipped with observation sampling assembly 3 that can be convenient for operator to observe petroleum state and sampling.

[0021] Preferably, the top of the two sides in protection assembly 2 is uniformly provided with multiple groups of sliding grooves 20, the inside of sliding groove 20 is slidably connected with sliding block 24, and the two sides of sliding block 24 are fixedly connected with petroleum casing body 1, the two sides of the bottom of protection assembly 2 are hingedly connected with multiple groups of telescopic rods 21, and the end of telescopic rod 21 away from protection assembly 2 is hingedly connected with the bottom of petroleum casing body 1, the outside of telescopic rod 21 is sleeved with first spring 22, and the two ends of first spring 22 are connected with the inside of petroleum casing body 1 and protection assembly 2 respectively.

[0022] Preferably, the middle position of the top of protection assembly 2 is provided with through hole, and the through hole is correspondingly connected with observation sampling assembly 3, and the through hole can make observation sampling assembly 3 normally used.

[0023] Preferably, the bottom of the two sides of first spring 22 is fixedly installed with fixed plate 23, and multiple groups of fixed holes are formed in the middle position of the inside of fixed plate 23, and the fixed holes can make the fixed bolt outside have installable position.

[0024] ​From the above, in use, first of all, the fixed plate 23 is used to install the oil casing body 1 to the designated position, and after the installation is completed, the protective assembly 2 is used to wrap and protect the oil casing body 1. When the oil casing body 1 encounters external impact or shaking, it will vibrate. The vibration force drives the sliding block 24 to compress the second spring 25, and the oil casing body 1 drives the first spring 22 to compress, and then the elastic restoring force of the first spring 22 and the second spring 25 drives the oil casing body 1 to reset. Not only can the device protect the outside of the oil casing body 1, but also can buffer the impact vibration force, reduce the damage of the oil casing body 1 during use, and further improve the service life of the oil casing body 1.

[0025] Example two: this example is basically the same as the last example, the difference is that four groups of internal thread holes 34 are formed at the middle position of the top of the oil casing body 1, and an observation and sampling assembly 3 is arranged at the middle position of the top of the oil casing body 1. A sealing cover 31 is fixedly installed at the middle position of the inside of the observation and sampling assembly 3, and the sealing cover 31 is matched with the opening 33. A viewing window 32 is fixedly installed at the middle position of the inside of the sealing cover 31. Two ends of the observation and sampling assembly 3 are symmetrically provided with fixed bolts 30, and the fixed bolts 30 are matched with the internal thread holes 34.

[0026] Preferably, two ends of the observation and sampling assembly 3 are symmetrically provided with mounting holes, and the mounting holes are matched with the fixed bolts 30. The material of the observation window 32 is high-pressure-resistant observation window glass, and the observation window 32 is matched with the opening 33.

[0027] From the above, when it is necessary to observe the state of the oil during use, the observation window 32 is observed to facilitate the operator to observe the state inside the oil casing body 1 at any time. When sampling or the oil casing body 1 needs to be repaired due to blockage, the external valve connected to the oil casing body 1 is closed. After closing, the fixed bolt 30 is turned out from the inside of the internal thread hole 34 by rotating the fixed bolt 30, the fixing of the sealing cover 31 is released, and then the sealing cover 31 is removed. It is convenient for the operator to take samples from the inside of the oil casing body 1. Not only can the operator observe and sample the oil inside the oil casing body 1, but also can the operator dredge when the oil casing body 1 is blocked, thereby improving the practicability of the oil casing.

[0028] Working principle: in use, first use fixed plate 23 to install the oil casing body 1 to the designated position, after installation, use the protection assembly 2 to wrap the oil casing body 1, when the oil casing body 1 encounters external impact or shaking, the vibration will drive the slider 24 to compress the second spring 25, use the oil casing body 1 to drive the first spring 22 to compress, then use the elastic restoring force of the first spring 22 and the second spring 25 to drive the oil casing body 1 to reset, not only can the device protect the outside of the oil casing body 1, but also can buffer the impact of the vibration, reduce the damage of the oil casing body 1 during use, and improve the service life of the oil casing body 1; when the oil state needs to be observed, through the observation window 32, the operator can observe the state inside the oil casing body 1 at any time, when sampling or the oil casing body 1 needs to be repaired, close the external valve connected with the oil casing body 1, after closing, rotate the fixing bolt 30 to make the fixing bolt 30 rotate out of the internal thread hole 34, release the fixation of the sealing cover 31, then take down the sealing cover 31, the operator can take sample from the inside of the oil casing body 1, not only can the operator observe and sample the oil state inside the oil casing body 1, but also can the operator dredge when the oil casing body 1 is blocked, thereby improving the practicability of the oil casing.

[0029] The embodiments of the present application are given for example and description, although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as limiting the present application, and the ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the present application.

Claims

1. A high performance steel oil casing characterized by: The utility model provides an oil casing body (1), the middle position of the inside top of oil casing body (1) is equipped with opening (33), the outside of oil casing body (1) is wrapped with the protection assembly (2) that can protect oil casing body (1), and the middle position of the top of oil casing body (1) is installed with the observation sampling assembly (3) that can facilitate operator to observe oil state and sampling.

2. The high performance steel oil casing of claim 1 wherein: The top of both sides in the inside of protection assembly (2) is evenly provided with a plurality of sliding grooves (20), the inside of sliding groove (20) is slidably connected with sliding block (24), and the both sides of oil casing body (1) are fixedly connected with sliding block (24), the both sides of the bottom in the inside of protection assembly (2) are evenly hinged with a plurality of telescopic rods (21), and the bottom of oil casing body (1) is hinged with the end of telescopic rod (21) away from protection assembly (2), the outside of telescopic rod (21) is provided with first spring (22), and the both ends of first spring (22) are connected with the inside of oil casing body (1) and protection assembly (2) respectively.

3. The high performance steel oil casing of claim 1 wherein: The middle position of the top of oil casing body (1) is equipped with four inner thread holes (34), the middle position of the top of oil casing body (1) is covered with observation sampling assembly (3), the middle position of the inside of observation sampling assembly (3) is fixedly installed with sealing cover (31), and sealing cover (31) is matched with opening (33), the middle position of the inside of sealing cover (31) is fixedly installed with observation window (32), and the both ends of the inside of observation sampling assembly (3) are symmetrically inserted with fixed bolt (30), and fixed bolt (30) is matched with inner thread hole (34).

4. The high performance steel oil casing of claim 1 wherein: The middle position of the top of protection assembly (2) is equipped with through hole, and the through hole is corresponded with observation sampling assembly (3).

5. The high performance steel oil casing of claim 2 wherein: The bottom of both sides of first spring (22) is fixedly installed with fixed plate (23), and a plurality of fixed holes are formed in the middle position of the inside of fixed plate (23).

6. The high performance steel oil casing of claim 3 wherein: The both ends of the inside of observation sampling assembly (3) are symmetrically provided with mounting hole, and the mounting hole is matched with fixed bolt (30), the material of observation window (32) is high-pressure-resistant observation window glass, and observation window (32) is corresponded with opening (33).

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