CN208575059U - A kind of combined type scale removal bottom is stifled - Google Patents

Abstract

It is stifled the utility model discloses a kind of combined type scale removal bottom, solve existing scale removal plug using integral structure, it is therefore desirable to the problem of integral replacing.Specifically include scraping body and attachment base；The scraping body is connected with the attachment base；There are several fins on the scraping external surface.The combined type scale removal bottom is stifled can to convert the installation direction of scraping body when guaranteeing the fin side worn down on scraping body using seperated design, and the other side for continuing to use oblique fin carries out scraping, until the equal worn down in two sides of fin；Scraping body is no longer appropriate for after continuing to use, and the scraping body for only needing to change same specification can be reused, and has no effect on whole using effect, because being not necessarily to integral replacing, is substantially reduced buying processing cost, is effectively avoided waste.

Description

A kind of combined type scale removal bottom is stifled

Technical field

The utility model relates to the tool of scraping is carried out to the fouling of injection well downhole flow regulator seating nipple inner wall in testing field of recovering the oil.

Background technique

The scale removal plug that injection well downhole flow regulator seating nipple scale removal uses, in use, utilizing the oblique fin scraping water distribution of scale removal plug The inner wall of device seating nipple chips away so that the fouling that injection well downhole flow regulator seating nipple inner wall accumulates be scraped.

In use, because scraping direction of rotation is fixed, so the abration position of oblique fin is also fixation, finally A side breakage increasingly of fin is caused to polish, and another side then remains intact.After long-time use, oblique fin with The position that the inner wall of injection well downhole flow regulator seating nipple contacts at first is worn flatten after, the sharpness of oblique fin declines, scraping efficiency It reduces, so cannot be used using the scale removal plug after a period of time.

Because scale removal plug uses integral structure, so, although for no other reason than that a side of oblique fin is worn and flattens, and Other parts there is no damage, be also forced and the entirety by scale removal plug needed to replace, and scale removal plug integral replacing at This is higher, is bound to cause unnecessary waste.

Summary of the invention

It is stifled that in view of this, the present invention provides a kind of combined type scale removal bottoms, the stifled seperated design in the scale removal bottom, oblique convex Parts thereof is only needed to change after rib worn down, solves the problems, such as that scale removal plug integral replacing is at high cost.

For achieving the above object, the technical solution adopted in the utility model is: a kind of combined type scale removal bottom is stifled, is used for Injection well downhole flow regulator seating nipple scale removal, is used cooperatively with throw in catcher characterized by comprising

Scraping body and attachment base；

The scraping body is connected with the attachment base；

The scraping body be it is cylindric, on outer surface have several fins；

The fin, the fouling for injection well downhole flow regulator seating nipple inner wall described in scraping；

The attachment base is threadedly coupled with the throw in catcher, enters institute with the throw in catcher for the scraping body State injection well downhole flow regulator seating nipple.

Preferably, combined type scale removal bottom is stifled, further includes:

Guide way；

The guide way is connect with the scraping body or the attachment base, is matched described in the throw in catcher entrance for guiding Hydrophone seating nipple.

Preferably, the guide way is fixedly connected with the attachment base, the scraping body be clipped in the guide way with it is described Between attachment base.

Preferably, the guide way has frustum cone structure；

The frustum cone structure circumferentially has longitudinal fin；

The longitudinal direction fin, it is corresponding with the fin of the scraping body, for protecting the fin, prevent the fin Breakage deformation.

Preferably, the guide way, top have opening slot structure；

The opening slot structure is used for connection disassembling or installation tool；

The disassembly or installation tool, disassembly or installation for the guide way and the attachment base.

Preferably, the fin, using oblique fin；

The tilt angle of the oblique fin is 60 °, is uniformly distributed 12 in the circumferential.

Preferably, the first sealing ring is set between the guide way and the attachment base；

Second sealing ring is set between the attachment base and the throw in catcher；

First sealing ring, for preventing the screw thread of the guide way to be buckled to.

Second sealing ring, for preventing the screw thread of the attachment base to be buckled to.

The utility model has the following beneficial effects:

The combined type scale removal bottom of the utility model is stifled, under the premise of realizing the purpose to injection well downhole flow regulator seating nipple inner wall scraping, It is designed using fission, is split as three self-existent components, when guaranteeing the oblique fin side worn down on scraping body, The installation direction that scraping body can be converted, the other side for continuing to use oblique fin carries out scraping, until the two sides of oblique fin Equal worn down；In addition, scraping body is no longer appropriate for after continuing to use, the scraping body for only needing to change same specification can be reused, Whole using effect is had no effect on, because being not necessarily to integral replacing, buying processing cost is substantially reduced, avoids wasting phenomenon Occur.

Detailed description of the invention

By the description below with reference to attached drawing to the utility model embodiment, the above-mentioned and other mesh of the utility model , feature and advantage it is apparent, in the accompanying drawings:

Fig. 1 is the stifled structural schematic diagram in the combined type scale removal bottom of the utility model embodiment.

Fig. 2 is the transverse sectional view of Fig. 1.

Specific embodiment

The utility model is described below based on embodiment, but it is worth noting that, the utility model is simultaneously unlimited In these embodiments.It is detailed to describe some specific detail sections below in the datail description of the utility model.So And for the part of no detailed description, the utility model can also be understood completely in those skilled in the art.

In addition, it should be understood by one skilled in the art that provided attached drawing is simply to illustrate that the utility model Objects, features and advantages, attached drawing are not to be actually drawn to scale.

Meanwhile unless the context clearly requires otherwise, "include", "comprise" etc. otherwise throughout the specification and claims Similar word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being " including but not limited to " Meaning.

Fig. 1 is the stifled structural schematic diagram in the combined type scale removal bottom of the utility model embodiment.Fig. 2 is the lateral section view of Fig. 1 Figure.As shown in connection with fig. 2 by Fig. 1: a kind of combined type scale removal bottom is stifled, is used for the scale removal of injection well downhole flow regulator seating nipple, is used cooperatively with throw in catcher, Specifically include guide way 1, scraping body 2 and attachment base 4.Guide way 1 is screwed with attachment base 4 and connect, and scraping body 2 is clipped in guiding Between body 1 and attachment base 4.

In fig. 1 and 2, scraping body 2 is cylindric, has several fins on outer surface；The fin is matched for scraping The fouling of hydrophone seating nipple inner wall；

Further, the fin on 2 surface of scraping body is oblique fin；The tilt angle of oblique fin is 60 °, oblique fin 12 are evenly distributed in the circumferential direction of scraping body.

In fig. 1 and 2, guide way 1 has frustum cone structure, on the frustum cone structure of guide way 1, circumferentially has longitudinal Fin；The longitudinal direction fin is corresponding with the oblique fin of scraping body 2, is also uniformly distributed in the circumferential direction of the frustum cone structure of guide way 1 There are 12.The longitudinal direction fin can protect oblique fin, prevent oblique fin breakage from deforming.

Further, there is opening slot structure at the top of guide way 1, which is used for connection disassembling or peace Holding tool；The disassembly or installation tool can be screw driver, and open slot is corresponding with the flat mouth of screwdriver, be led using screwdriver Disassembly or installation to body 1 and attachment base 4.

In fig. 1 and 2, attachment base 4, surface have external screw thread, pass through the external screw thread result and throw in catcher bottom end screw thread Connection.After guide way 1, scraping body 2 and the assembly of attachment base 4 are integrated, after attachment base 4 is threaded in throw in catcher bottom end, with throwing Fishing device enters injection well downhole flow regulator seating nipple together.

Further, the first sealing ring 5 is set between guide way 1 and the joint face of attachment base 4；The outer surface of attachment base 4 Second sealing ring 3 is set.First sealing ring 5 is for preventing the screw thread of guide way 1 to be buckled to, and the second sealing ring 3 is for preventing from connecting The screw thread back-off of seat 4.

Specifically, in conjunction with Fig. 1-2, the stifled application method in the combined type scale removal bottom to the utility model is briefly described:

Scale removal bottom is stifled to be connect by attachment base 4 with throw in catcher bottom thread, is gone into the well with throw in catcher, normal with throw in catcher Operating method is not different.When throw in catcher passes through injection well downhole flow regulator, scale removal bottom is stifled to be contacted at first with the seating nipple inner wall of injection well downhole flow regulator.It scrapes The fouling of the seating nipple inner wall of the oblique fin scraping injection well downhole flow regulator on body is cut, the groove between adjacent two oblique fin, which is temporarily stored, to be scraped Under scale, prevent it from entering annular space between seating nipple inner wall and throw in catcher to stuck throw in catcher.

When a side worn down of oblique fin, scraping body 2 can be laid down between guide way 1 and attachment base 4, It is reinstalled after rotation 180 degree, the other side for continuing to use oblique fin works on.

When the equal worn down in the two sides of oblique fin, the scraping body that more renews.

Embodiment described above is only to express the embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that the ordinary skill people of this field For member, without departing from the concept of the premise utility, several deformations, same replacement can also be made, improved etc., these Belong to the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (7)

1. a kind of combined type scale removal bottom is stifled, it is used for the scale removal of injection well downhole flow regulator seating nipple, is used cooperatively with throw in catcher, which is characterized in that packet It includes:

Scraping body and attachment base；

The scraping body is connected with the attachment base；

The scraping body be it is cylindric, on outer surface have several fins；

The fin, the fouling for injection well downhole flow regulator seating nipple inner wall described in scraping；

The attachment base is threadedly coupled with the throw in catcher, is matched for the scraping body with described in throw in catcher entrance Hydrophone seating nipple.

2. combined type scale removal according to claim 1 bottom is stifled, which is characterized in that further include:

Guide way；

The guide way is connect with the scraping body or the attachment base, for guiding the throw in catcher to enter the injection well downhole flow regulator Seating nipple.

3. combined type scale removal according to claim 2 bottom is stifled, it is characterised in that:

The guide way is fixedly connected with the attachment base, the scraping body be fixed on the guide way and the attachment base it Between.

4. combined type scale removal according to claim 2 bottom is stifled, it is characterised in that:

The guide way has frustum cone structure；

The frustum cone structure circumferentially has longitudinal fin；

The longitudinal direction fin, it is corresponding with the fin of the scraping body, for protecting the fin, prevent the fin damaged Deformation.

5. combined type scale removal according to claim 2 bottom is stifled, it is characterised in that:

The guide way, top have opening slot structure；

The opening slot structure is used for connection disassembling or installation tool；

The disassembly or installation tool, disassembly or installation for the guide way and the attachment base.

6. combined type scale removal according to claim 3 bottom is stifled, it is characterised in that:

First sealing ring is set between the guide way and the attachment base；

Second sealing ring is set between the attachment base and the throw in catcher；

First sealing ring, for preventing the screw thread of the guide way to be buckled to,

Second sealing ring, for preventing the screw thread of the attachment base to be buckled to.

7. -6 any combined type scale removal bottoms are stifled according to claim 1, it is characterised in that:

The fin, using oblique fin；

The tilt angle of the oblique fin is 60 °, is uniformly distributed 12 in the circumferential.