CN209040797U

CN209040797U - Underground self-expansion plugging device

Info

Publication number: CN209040797U
Application number: CN201821804888.4U
Authority: CN
Inventors: 王跃胜; 张玉明; 景继东
Original assignee: HEBEI BAOSHI SPECIAL FLEXIBLE RUBBER CHEMICAL INDUSTRY Co Ltd
Current assignee: HEBEI BAOSHI SPECIAL FLEXIBLE RUBBER CHEMICAL INDUSTRY Co Ltd
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2019-06-28
Anticipated expiration: 2028-10-19

Abstract

The utility model relates to the technical fields of underground mining auxiliary equipment, more particularly to a kind of underground self-expansion plugging device；Work efficiency is high for it, can effectively ensure that the plugging effect in device later period, and working effect is stronger, to improve its use reliability；It includes metal mandrel；It further include rubber ring and self-expanding closure packing element, rubber ring is mounted on the left end that self-expanding blocks packing element, and the right end of metal mandrel is connect with rubber ring left end.

Description

Underground self-expansion plugging device

Technical field

The utility model relates to the technical fields of oilfield exploitation auxiliary equipment, block more particularly to a kind of underground self-expansion Device.

Background technique

It is well known that down-hole plugging device is a kind of for carrying out closure processing to discarded oil/gas well, in oil/gas well Oil-gas Layer, artesian aquifer and full pit shaft are effectively blocked, thus reduce discarded oil/gas well is influenced caused by natural environment with Security risk, field in be widely used in a variety of applications；Existing down-hole plugging device includes metal mandrel, box cupling, piston And fixed ring, box cupling are mounted on the bottom end of the metal mandrel, piston is located at the box cupling bottom end, and the Fixing shrink ring, which is located at, to be connect On hoop and piston；Existing down-hole plugging device is in use, the mobile metal mandrel of staff to suitable location drives box cupling simultaneously It is moved with piston to be blocked to the wellbore blocked；However, existing down-hole plugging device uses Middle discovery, device and casing wall friction are larger when going into the well, and device is gone into the well difficulty when outer diameter is larger, and working efficiency is low, after easily leading to Phase plugging effect is poor, and working effect is poor, causes its use reliability lower.

Utility model content

In order to solve the above technical problems, the utility model provides one kind, work efficiency is high, can effectively ensure that the device later period Plugging effect, working effect is stronger, to improve the underground self-expansion plugging device of its use reliability.

The underground self-expansion plugging device of the utility model, including metal mandrel；It further include rubber ring and self-expanding envelope Stifled packing element, the rubber ring are mounted on the left end that self-expanding blocks packing element, the right end and rubber of the metal mandrel The connection of ring left end.

The underground self-expansion plugging device of the utility model, the right end that the self-expanding blocks packing element are provided with plug protection End.

Compared with prior art the utility model has the following beneficial effects: its structure is simple, using simplicity, go into the well without hindrance； After going into the well, there is the self-expanding of leather cup structure to block packing element and prop up under downhole force effect and reach sealing purpose, it can be quickly complete At operation is blocked, later period self-expanding blocks packing element and gradually expands after underground touches water, and work efficiency is high, can effectively ensure that dress The plugging effect of phase is postponed, working effect is stronger, to improve its use reliability.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

It is attached marked in the figure: 1, metal mandrel；2, rubber ring；3, self-expanding blocks packing element；4, plug protection end.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

As shown in Figure 1, the underground self-expansion plugging device of the utility model, including metal mandrel 1；It further include rubber ring 2 and self-expanding block packing element 3, rubber ring be mounted on self-expanding block packing element left end, the right end and rubber of metal mandrel The connection of support ring left end；Its structure is simple, using simplicity, goes into the well without hindrance；After going into the well, there is leather cup under downhole force effect The self-expanding of structure, which blocks packing element and props up, reaches sealing purpose, and closure operation can be rapidly completed, and later period self-expanding blocks packing element and exists Underground gradually expands after touching water, and work efficiency is high, can effectively ensure that the plugging effect in device later period, and working effect is stronger, To improve its use reliability.

The underground self-expansion plugging device of the utility model, the right end that self-expanding blocks packing element are provided with plug protection end 4；It can Device is integrally protected during going into the well.

The underground self-expansion plugging device of the utility model, at work, user will be moved into user's needs first Position, the self-expanding of leather cup structure, which blocks packing element and props up, reaches sealing purpose, and later period self-expanding blocks packing element and touches in underground It is gradually expanded after water,.

Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art Member for, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improve and Modification also should be regarded as the protection scope of the utility model.

Claims

1. a kind of underground self-expansion plugging device, including metal mandrel (1)；It is characterized in that, further including rubber ring (2) and oneself Expansion plugging packing element (3), the rubber ring (2) are mounted on the left end that self-expanding blocks packing element (3), the metal mandrel (1) right end is connect with rubber ring (2) left end.

2. underground self-expansion plugging device as described in claim 1, which is characterized in that the right end that the self-expanding blocks packing element is set It is equipped with plug protection end (4).