CN219953285U - Hydraulic impact blocking remover for water injection well - Google Patents

Abstract

The utility model discloses a hydraulic impact blocking remover for a water injection well, which comprises a lower inner cylinder in threaded connection with an upper inner cylinder, wherein a sealing ring is embedded in the lower inner cylinder towards the top end of the upper inner cylinder, the sealing ring is tightly attached to the upper inner cylinder, the outer wall of the top end of the lower inner cylinder is provided with a plurality of locking grooves, the bottom end of the upper inner cylinder is provided with a locking mechanism, and the locking mechanism is matched with the locking grooves; according to the utility model, through the cooperation of the locking mechanism and the locking groove, the bottom end of the locking block can be inserted into the corresponding locking groove in a locking state, so that the upper inner cylinder and the lower inner cylinder cannot rotate relatively, the stability of threaded connection of the upper inner cylinder and the lower inner cylinder is ensured, the loosening between the upper inner cylinder and the lower inner cylinder is avoided, and the use effect is good.

Description

Hydraulic impact blocking remover for water injection well

Technical Field

The utility model relates to the technical field of petroleum industry, in particular to a hydraulic impact blocking remover for a water injection well.

Background

In the water injection development process of an oil field, after water injection is carried out for a long time, the water injection well is subjected to long-term water injection, and due to the influence of water quality, stratum pollution causes that a water well is gradually blocked near a near well zone or a water injection hole, so that water injection pressure is continuously increased until water injection cannot enter, the water injection and oil displacement effects cannot be exerted, and in order to recover the water injection capability of the water well, the blocked stratum is required to be unblocked.

The Chinese patent with publication number CN2550493Y discloses a hydraulic impact blocking remover for a water injection well, which has the advantages of simple structure, convenient operation, low manufacturing and using cost, multiple use of a set of tools, large blocking removing pressure, large radial wave and area of the water well, good blocking removing effect and long effective water injection period maintenance by once blocking removing.

However, the above solution still has some drawbacks, such as the adoption of threaded connection (threaded connection) between the upper inner cylinder and the lower inner cylinder, lack of locking, poor stability, and easy loosening of threads during the plugging removal process, which needs to be improved.

Disclosure of Invention

The utility model aims to provide a hydraulic impact blocking remover for a water injection well, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a water injection well hydraulic impact deblocking device, includes the lower inner tube with last inner tube threaded connection, down the inner tube inlay towards the top of last inner tube and be equipped with the sealing washer, and sealing washer and last inner tube closely laminate, a plurality of locked grooves have been seted up to the top outer wall of lower inner tube, locking mechanical system is installed to the bottom of going up the inner tube, locking mechanical system and locked groove looks adaptation.

As a further scheme of the utility model: the one end integrated into one piece of upper inner tube has the throat, and the outer wall of throat is provided with the external screw thread, the open-ended inner wall of top of lower inner tube is provided with the internal screw thread, the opening threaded connection of throat and lower inner tube.

As a further scheme of the utility model: the locking mechanism comprises a sleeve sleeved at the bottom end of the upper inner cylinder in a sliding manner, the corresponding positions of the bottom end of the outer wall of the upper inner cylinder and each locking groove are provided with containing grooves, locking blocks are fixedly connected to the corresponding positions of the inner wall of the sleeve and each containing groove, the opening sizes of the containing grooves and the locking grooves are matched with the sizes of the locking blocks, and the bottom ends of the locking blocks are located in the locking grooves.

As a further scheme of the utility model: a spring is arranged in the accommodating groove, and the bottom end of the spring abuts against the top end of the locking block.

As still further aspects of the utility model: the outer wall of the sleeve is provided with an open slot in a penetrating way, a positioning pin is arranged in the open slot, and the positioning pin is fixedly connected with the outer wall of the upper inner cylinder.

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

according to the utility model, through the cooperation of the locking mechanism and the locking groove, the bottom end of the locking block can be inserted into the corresponding locking groove in a locking state, so that the upper inner cylinder and the lower inner cylinder cannot rotate relatively, the stability of threaded connection of the upper inner cylinder and the lower inner cylinder is ensured, the loosening between the upper inner cylinder and the lower inner cylinder is avoided, and the use effect is good.

Drawings

Fig. 1 is a schematic structural diagram of a hydraulic impact blocking remover for a water injection well.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is a schematic structural view of a receiving groove in a hydraulic impact plugging removing device for a water injection well.

Wherein, upper inner tube 1, throat 2, lower inner tube 3, sealing washer 4, sleeve pipe 5, locking piece 6, holding tank 7, spring 8, locking groove 9, open slot 10, locating pin 11.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model will be further described in detail with reference to the following examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have the orientation specific to the specification, be constructed and operated in the specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

Referring to fig. 1 to 3, in the embodiment of the utility model, a hydraulic impact blocking remover for a water injection well comprises a lower inner cylinder 3 in threaded connection with an upper inner cylinder 1, wherein a sealing ring 4 is embedded in the lower inner cylinder 3 towards the top end of the upper inner cylinder 1, the sealing ring 4 is tightly attached to the upper inner cylinder 1, a plurality of locking grooves 9 are formed in the outer wall of the top end of the lower inner cylinder 3, and a locking mechanism is mounted at the bottom end of the upper inner cylinder 1 and is matched with the locking grooves 9.

According to the utility model, by adopting the scheme, the sealing performance between the lower inner cylinder 3 and the upper inner cylinder 1 can be ensured by the arrangement of the sealing ring 4, and the relative rotation between the upper inner cylinder 1 and the lower inner cylinder 3 can be avoided under the locking state by the cooperation of the locking mechanism and the locking groove 9, so that the stability of threaded connection of the upper inner cylinder 1 and the lower inner cylinder 3 is ensured, the looseness between the upper inner cylinder and the lower inner cylinder is avoided, and the use effect is good.

Referring specifically to fig. 2, in one embodiment of the present utility model, a necking 2 is integrally formed at one end of the upper inner cylinder 1, an external thread is provided on an outer wall of the necking 2, an internal thread is provided on an inner wall of an opening at a top end of the lower inner cylinder 3, and the necking 2 is in threaded connection with the opening of the lower inner cylinder 3.

With specific reference to fig. 2 and fig. 3, in one embodiment of the present utility model, the locking mechanism includes a sleeve 5 slidably sleeved at the bottom end of the upper inner cylinder 1, corresponding positions of the bottom end of the outer wall of the upper inner cylinder 1 and each locking groove 9 are provided with a containing groove 7, corresponding positions of the inner wall of the sleeve 5 and each containing groove 7 are fixedly connected with a locking block 6, opening sizes of the containing groove 7 and the locking groove 9 are matched with the size of the locking block 6, and the bottom end of the locking block 6 is located in the locking groove 9.

Through the sleeve 5 sliding on the surface of the upper inner cylinder 1, the locking block 6 can be driven to move up and down, so that the bottom end of the locking block 6 is inserted into the corresponding locking groove 9, or the locking block 6 is moved out of the corresponding locking groove 9, and the operation is simple and convenient.

With specific reference to fig. 2, in one embodiment of the present utility model, a spring 8 is disposed in the accommodating groove 7, and a bottom end of the spring 8 abuts against a top end of the locking block 6.

Through the arrangement of the spring 8, a downward pushing force can be always exerted on the locking block 6, so that the bottom end of the locking block 6 is always positioned in the locking groove 9 under the condition of no manual operation, and stable connection between the upper inner cylinder 1 and the lower inner cylinder 3 is ensured.

Referring specifically to fig. 1, in one embodiment of the present utility model, an open slot 10 is formed through the outer wall of the sleeve 5, a positioning pin 11 is disposed in the open slot 10, and the positioning pin 11 is fixedly connected with the outer wall of the upper inner cylinder 1.

Through setting up of locating pin 11 and open slot 10, can carry out spacingly to the movable range of sleeve pipe 5 on upper inner tube 1 to avoid sleeve pipe 5 to have upper inner tube 1 to drop.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (5)

1. The utility model provides a water injection well hydraulic impact deblocking device which characterized in that: including lower inner tube (3) with last inner tube (1) threaded connection, lower inner tube (3) are inlayed towards the top of last inner tube (1) and are equipped with sealing washer (4), and sealing washer (4) are closely laminated with last inner tube (1), a plurality of locked groove (9) have been seted up to the top outer wall of lower inner tube (3), locking mechanism is installed to the bottom of going up inner tube (1), locking mechanism and locked groove (9) looks adaptation.

2. The hydraulic impact blocking remover for water injection well according to claim 1, wherein: one end integrated into one piece of last inner tube (1) has throat (2), and the outer wall of throat (2) is provided with the external screw thread, the open-top inner wall of inner tube (3) is provided with the internal screw thread down, the opening threaded connection of throat (2) and inner tube (3) down.

3. The hydraulic impact blocking remover for water injection well according to claim 1, wherein: the locking mechanism comprises a sleeve (5) which is sleeved at the bottom end of an upper inner cylinder (1) in a sliding manner, accommodating grooves (7) are formed in the corresponding positions of the bottom end of the outer wall of the upper inner cylinder (1) and each locking groove (9), locking blocks (6) are fixedly connected to the corresponding positions of the inner wall of the sleeve (5) and each accommodating groove (7), the opening sizes of the accommodating grooves (7) and the locking grooves (9) are matched with the sizes of the locking blocks (6), and the bottom ends of the locking blocks (6) are located in the locking grooves (9).

4. A water injection well hydraulic shock unblocking device according to claim 3, wherein: a spring (8) is arranged in the accommodating groove (7), and the bottom end of the spring (8) is propped against the top end of the locking block (6).

5. A water injection well hydraulic shock unblocking device according to claim 3, wherein: the outer wall of the sleeve (5) is provided with an open slot (10) in a penetrating way, a positioning pin (11) is arranged in the open slot (10), and the positioning pin (11) is fixedly connected with the outer wall of the upper inner cylinder (1).