CN210195709U

CN210195709U - Be applicable to drilling fixed point plugging device

Info

Publication number: CN210195709U
Application number: CN201920646159.9U
Authority: CN
Inventors: Mingyong Chen; 陈明勇; Xuping Huang; 黄旭平; Chuanzuo Yang; 阳传佐; Anping Shan; 单安平; Yibao Zhang; 张艺宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-03-27
Anticipated expiration: 2029-05-08

Abstract

The utility model relates to a fixed-point plugging device suitable for drilling, which comprises a plugging cylinder body, wherein the output of the inner cavity of the plugging cylinder body is provided with a positioning screw rod, the top end of the positioning screw rod penetrates through the top of the leaking stoppage barrel body, the positioning sleeves are symmetrically sleeved on the outer wall of the positioning screw rod from top to bottom, the U-shaped first connecting lugs are symmetrically welded on the outer wall of the leaking stoppage barrel body from top to bottom, the anti-skidding inserted bar is installed in the inner cavity of the U-shaped first connecting lugs through pins, and the U-shaped second connecting lugs are welded on the inner side wall of the anti-skidding inserted bar, when the leaking stoppage barrel is placed at a leaking stoppage point, the anti-skidding insertion rod is unfolded and fixed on a well wall, the phenomenon that the leaking stoppage barrel is sprayed out due to underground pressure is prevented, the phenomenon of safety accidents caused by the fact that the leaking stoppage barrel is sprayed out due to the underground pressure is reduced, and the safety and the stability of leaking stoppage of the leaking stoppage barrel are improved.

Description

Be applicable to drilling fixed point plugging device

Technical Field

The utility model relates to a drilling engineering technical field, concretely relates to be applicable to well drilling fixed point plugging device.

Background

The drilling engineering is an engineering of drilling a formation into a cylindrical hole with a certain depth by using mechanical equipment. Rock breaking methods and the types of tools used can be divided into single-bit and rotary drilling. In geological work, a drilling device is utilized to drill cylindrical round holes with smaller diameter and larger depth into the underground, which are also called drill holes. The diameter and depth of the drilled well depend on the drilling application, the buried depth of the mineral products and the like. The diameter of the well drilled for drilling oil, gas and ground water is large. The petroleum drilling equipment is utilized to drill a plurality of sets of stratums from the ground along a designed track to reach a preset target stratum (a hydrocarbon stratum or a possible hydrocarbon stratum) to form a stable channel (a hydrocarbon well) for extracting or injecting required fluids (water, gas and steam), and in the drilling process and after drilling is finished, the operations of coring, logging and testing are finished, and various information required by exploration, development and drilling is obtained.

In the process of drilling construction, a lost circulation phenomenon often occurs, and the lost circulation refers to a complex downhole condition that various working fluids (including drilling fluid, cement slurry, completion fluid and other fluids) directly enter a stratum under the action of pressure difference in downhole operations such as drilling, well cementation, testing or well repair. If can not be to timely shutoff of lost circulation, will cause serious accident and loss of property, current mode to the well drilling leaking stoppage adopts to fill lost circulation material or lays a leaking stoppage section of thick bamboo and carries out the leaking stoppage, and the former is easy to cause the phenomenon of filling the shutoff failure because pressure in the pit is great, and the latter majority lacks anti-skidding measure, because pressure in the pit and output spun phenomenon have the potential safety hazard, based on this, the utility model designs a be applicable to well drilling fixed point plugging device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an at least defect among the prior art is overcome to a main aim at, provides a be applicable to well drilling fixed point plugging device to solve the current leaking stoppage to the well drilling that proposes in the above-mentioned background art and adopt to pour into lost circulation material or lay a leaking stoppage section of thick bamboo and carry out the leaking stoppage, the former is easy because the great phenomenon that causes to pour into the shutoff failure of pressure in the pit, the latter majority lacks anti-skidding measure, because pressure in the pit and output spun phenomenon, there is the problem of potential safety hazard.

In order to realize the technical scheme, the utility model discloses a following technical scheme:

the utility model provides a be applicable to drilling fixed point plugging device, includes the leaking stoppage barrel, positioning screw is installed in the inner chamber output of leaking stoppage barrel, and positioning screw's top runs through the top of leaking stoppage barrel, positioning screw's outer wall longitudinal symmetry has cup jointed the position sleeve, the outer wall longitudinal symmetry welding of leaking stoppage barrel has U type engaging lug one, anti-skidding inserted bar is installed through the pin to the inner chamber of U type engaging lug one, the inside wall welding of anti-skidding inserted bar has U type engaging lug two, spacing spout has evenly been seted up to the outer wall of leaking stoppage barrel, install the traction pull rod through the pin between position sleeve and the U type engaging lug two, and the traction pull rod runs through spacing spout, the top welding of positioning screw has the hoist and mount board, the hole for hoist and mount has been seted up to the outer wall of hoist and mount board, the bottom of leaking stoppage barrel is provided with.

Preferably, the connection part of the positioning screw rod and the leaking stoppage barrel body is provided with a wear-resistant bearing, and the positioning screw rod can rotate in the inner cavity of the leaking stoppage barrel body.

Preferably, the inner cavity of the positioning sleeve is uniformly provided with internal threads matched with the positioning screw, the outer wall of the positioning sleeve is uniformly welded with a third U-shaped connecting lug, and the third U-shaped connecting lug is symmetrically arranged relative to the axis of the positioning sleeve.

Preferably, the traction pull rod and the limiting sliding groove are in clearance fit, and the traction pull rod can slide in the inner cavity of the limiting sliding groove.

Preferably, the conical balancing weight and the leaking stoppage barrel body are integrally welded and formed, and the mass of the conical balancing weight is the sum of required components on the leaking stoppage barrel body.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the anti-skidding inserted bar that can fold at the outer wall of leaking stoppage barrel, after laying the leaking stoppage barrel in the leaking stoppage point, expand the anti-skidding inserted bar and fix on the wall of a well, prevent to cause because the pressure in the pit with leaking stoppage barrel spun phenomenon, reduce because the incident phenomenon that the pressure in the pit caused leaking stoppage barrel blowout, improve the security and the stability of leaking stoppage barrel leaking stoppage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a fixed-point plugging device suitable for drilling according to the present invention;

FIG. 2 is a schematic view of the structure of the positioning sleeve of the present invention;

fig. 3 is a schematic view of the shrinkage state of the anti-slip insert rod of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the anti-skid device comprises a leaking stoppage barrel 1, a positioning screw rod 2, a positioning sleeve 3, an internal thread 31, a 32-U-shaped connecting lug III, a 4-U-shaped connecting lug I, an anti-skid inserted rod 5, a 6-U-shaped connecting lug II, a 7-limiting sliding groove, a traction pull rod 8, a hoisting plate 9, a hoisting hole 10 and a conical balancing weight 11.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: a fixed-point leakage stopping device suitable for drilling comprises a leakage stopping cylinder body 1, a positioning screw rod 2 is arranged at the output of the inner cavity of the leakage stopping cylinder body 1, the top end of the positioning screw 2 penetrates through the top of the leaking stoppage barrel body 1, the outer wall of the positioning screw 2 is symmetrically sleeved with positioning sleeves 3 from top to bottom, the outer wall of the leaking stoppage barrel body 1 is symmetrically welded with U-shaped connecting lugs I4 from top to bottom, the inner cavity of the U-shaped connecting lugs I4 is provided with anti-skidding inserted bars 5 through pins, the inner side walls of the anti-skidding inserted bars 5 are welded with U-shaped connecting lugs II 6, the outer wall of the leaking stoppage barrel body 1 is uniformly provided with limiting sliding grooves 7, and a traction pull rod 8 is arranged between the positioning sleeves 3 and the U-shaped connecting lugs II 6, and the traction pull rod 8 runs through the limiting sliding groove 7, the hoisting plate 9 is welded at the top end of the positioning screw rod 2, the hoisting hole 10 is formed in the outer wall of the hoisting plate 9, and the conical balancing weight 11 is arranged at the bottom end of the leaking stoppage barrel body 1.

Wherein, the connecting part of the positioning screw 2 and the leaking stoppage barrel 1 is provided with a wear-resistant bearing, the positioning screw 2 can rotate in the inner cavity of the leaking stoppage barrel 1, the rotational wear between the positioning screw 2 and the leaking stoppage barrel 1 is reduced, the inner cavity of the positioning sleeve 3 is uniformly provided with internal threads 31 matched with the positioning screw 2, the outer wall of the positioning sleeve 3 is uniformly welded with a U-shaped connecting lug III 32, the U-shaped connecting lug III 32 is symmetrically arranged relative to the axis center of the positioning sleeve 3, the position of the positioning sleeve 3 on the positioning screw 2 is conveniently adjusted through the action of threads, the traction pull rod 8 is arranged between the positioning sleeve 3 and the U-shaped connecting lug II 6, the traction pull rod 8 is in clearance fit with the limiting sliding chute 7, the traction pull rod 8 can slide in the inner cavity of the limiting sliding chute 7, the position of the traction pull rod 8 in the limiting sliding chute 7 is conveniently adjusted according to the position, the mechanical locking phenomenon between the traction pull rod 8 and the limiting sliding groove 7 is prevented, the conical balancing weight 11 and the leaking stoppage barrel body 1 are integrally welded and formed, the mass of the conical balancing weight 11 is the sum of required components on the leaking stoppage barrel body 1, and the leaking stoppage barrel body 1 can slide down to a leaking stoppage point conveniently according to the dead weight of the conical balancing weight 11.

One specific application of this embodiment is: when the utility model is used, the hoisting equipment passes through the hoisting hole 10 on the hoisting plate 9, the drilling point needing plugging is hoisted by the product (shown in figure 3) with the antiskid inserted bar 5 in a contraction state, under the gravity action of the conical balancing weight 11, the plugging cylinder 1 can slide down to a predetermined plugging point, the hoisting equipment drives the hoisting plate 9 to rotate, the positioning screw 2 is driven to rotate by the rotation of the hoisting plate 9, the positioning sleeve 3 can slide down on the outer wall of the positioning screw 2 by the rotation of the positioning screw 2 and the thread action between the positioning screw 2 and the positioning sleeve 3, the traction pull bar 8 is driven to slide outwards in the inner cavity of the limit chute 7 by the downward sliding of the positioning sleeve 3, the antiskid inserted bar 5 is pushed to rotate around the U-shaped connecting lug 4 by the outward sliding of the traction pull bar 8, and the antiskid inserted bar 5 can be unfolded to be fixed with the well wall (shown in figure 1), and the anti-skidding inserted bar 5 is arranged upwards in an inclined mode, so that the phenomenon that the leaking stoppage barrel body 1 slides upwards due to underground pressure is prevented, the phenomenon that the leaking stoppage barrel body 1 is sprayed out due to underground pressure is prevented, the safety accident phenomenon caused by the fact that the leaking stoppage barrel body 1 is sprayed out due to underground pressure is reduced, and the safety and the stability of leaking stoppage of the leaking stoppage barrel body 1 are improved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a be applicable to drilling fixed point plugging device, includes leaking stoppage barrel (1), its characterized in that: the leak stopping device is characterized in that a positioning screw (2) is installed at the output of an inner cavity of the leak stopping barrel body (1), the top end of the positioning screw (2) penetrates through the top of the leak stopping barrel body (1), positioning sleeves (3) are symmetrically sleeved on the upper portion and the lower portion of the outer wall of the positioning screw (2), U-shaped first connecting lugs (4) are symmetrically welded on the upper portion and the lower portion of the outer wall of the leak stopping barrel body (1), anti-skidding inserting rods (5) are installed on the inner cavities of the U-shaped first connecting lugs (4) through pins, U-shaped second connecting lugs (6) are welded on the inner side wall of the anti-skidding inserting rods (5), limiting sliding grooves (7) are evenly formed in the outer wall of the leak stopping barrel body (1), traction pull rods (8) are installed between the positioning sleeves (3) and the U-shaped second connecting lugs (6) through pins, the traction pull rods (8) penetrate, the outer wall of the hoisting plate (9) is provided with a hoisting hole (10), and the bottom end of the leaking stoppage barrel body (1) is provided with a conical balancing weight (11).

2. The device for plugging the fixed point of the drilling well according to the claim 1 is characterized in that: the joint of the positioning screw rod (2) and the leaking stoppage barrel body (1) is provided with a wear-resistant bearing, and the positioning screw rod (2) can rotate in the inner cavity of the leaking stoppage barrel body (1).

3. The device for plugging the fixed point of the drilling well according to the claim 1 is characterized in that: inner thread (31) with positioning screw (2) matched with are evenly seted up to the inner chamber of positioning sleeve (3), the even welding of outer wall of positioning sleeve (3) has three (32) of U type engaging lug, and three (32) of U type engaging lug set up about the axis central symmetry of positioning sleeve (3).

4. The device for plugging the fixed point of the drilling well according to the claim 1 is characterized in that: the traction pull rod (8) is in clearance fit with the limiting sliding groove (7), and the traction pull rod (8) can slide in the inner cavity of the limiting sliding groove (7).

5. The device for plugging the fixed point of the drilling well according to the claim 1 is characterized in that: the conical balancing weight (11) and the leaking stoppage barrel body (1) are integrally welded and formed, and the mass of the conical balancing weight (11) is the sum of required components on the leaking stoppage barrel body (1).