CN217841610U

CN217841610U - Fast drilling bridge plug

Info

Publication number: CN217841610U
Application number: CN202221205509.6U
Authority: CN
Inventors: 韩康; 汪鸿宇
Original assignee: FUNING COUNTY HONGDA PETROCHEMICAL MACHINERY CO LTD
Current assignee: FUNING COUNTY HONGDA PETROCHEMICAL MACHINERY CO LTD
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-11-18
Anticipated expiration: 2032-05-17

Abstract

The utility model relates to a quick drilling bridge plug, which comprises a bridge plug main body, a first connecting component and a second connecting component, wherein the first connecting component and the second connecting component are arranged at two ends of the bridge plug main body relatively; the first connecting assembly comprises a guide shoe arranged at one end of the bridge plug main body, the guide shoe comprises a base and a guide head, the diameter of the base is larger than that of the guide head, the guide head and the base are integrally welded, the guide head and the base are hollow, and the end part of the guide head is provided with an inclined corner; the second connecting assembly comprises a worker buckle screw protector arranged at the other end of the bridge plug main body, the worker buckle screw protector comprises an inner ring and an outer ring, the outer wall of the inner ring and the inner wall of the outer ring coincide with each other, an inclined corner is arranged at the end, far away from the bridge plug main body, of the worker buckle screw protector, and the inclined corner of the worker buckle screw protector is matched with the inclined corner of the leading head.

Description

Fast drilling bridge plug

Technical Field

The utility model relates to an oil gas field exploitation technical field, in particular to fast bridge plug that bores.

Background

At present, after the oil and gas fields are exploited in a large scale, the oil-rich area is rarely or even exhausted, and a large amount of low-permeability oil areas are left for no large-scale exploitation, mainly because the oil production is low and the oil cannot be exploited out. In recent years, shale gas exploitation and secondary development of a low-permeability oil zone are carried out by adopting a hydraulic fracturing technology, the using amount of the bridge plug is greatly increased, and the bridge plug belongs to a consumable product and can be used only once, so that the using amount is huge. The bridge plug made of metal materials mainly used at present is used for more than half a century, makes great contribution to petroleum production, but has a plurality of problems.

When the fracturing technology is adopted for oil and gas exploitation, the bridge plug is completely set, and after the fracturing operation section is completed, the bridge plug needs to be drilled off, so that the smoothness of a shaft is realized. At this time, a drilling method is adopted to drill the bridge plug into fragments from top to bottom. The bridge plug fast drilling method is characterized in that a plurality of bridge plugs are pushed together firstly in the bridge plug drilling process, the bridge plugs are fixedly connected end to end, then a specific drill bit is used for drilling the bridge plugs into fragments, if the bridge plugs are clamped and incomplete with a rear bridge plug, the bridge plugs are easy to slip, and the drill bit is troublesome to drill conveniently, so that the fast drilling bridge plug is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a fast bridge plug that bores can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the quick drilling bridge plug comprises a bridge plug main body, a first connecting assembly and a second connecting assembly, wherein the first connecting assembly and the second connecting assembly are oppositely arranged at two ends of the bridge plug main body;

the first connecting assembly comprises a guide shoe arranged at one end of the bridge plug main body, the guide shoe comprises a base and a guide head, the diameter of the base is larger than that of the guide head, the guide head and the base are integrally welded, the guide head and the base are hollow, and an inclined corner is arranged at the end part of the guide head;

the second coupling assembling is including setting up the worker of the bridging plug main part other end is detained the silk and is protected, the worker is detained the silk and is protected including inner circle and outer lane, the inner circle outer wall with outer lane inner wall coincides each other, just the worker is detained silk and is protected inner circle length and be less than worker is detained silk and is protected outer lane length, worker is detained the silk and is protected the outer lane and keep away from bridging plug main part tip is equipped with the oblique corner, just oblique corner one end with worker is detained silk and is protected the inner circle tip and flush, just worker is detained silk and is protected the oblique corner with leading head oblique corner looks mutual adaptation, worker is detained the oblique corner that silk protects the oblique corner and just to support the oblique corner that the leading head tip was equipped with on the guide on next bridging plug at rotatory in-process for fix a preceding bridging plug, under the supplementary fixed of this bridging plug self slips, fixed more firm, make the drill bit drive the bridging plug rotatory skidding can not appear in the bridge plug breakage-process, and then realize boring the bridging plug garrulous fast.

Preferably, the bridge plug main body comprises a central pipe, and two ends of the central pipe are respectively in through connection with the guide shoe and the screw protector and are fixed by screws. The cover is equipped with clamping ring, wedge, outer fender umbrella, interior fender umbrella, limit gum cover and middle gum cover in proper order on center tube upper portion, and here the bridging plug main part is common general knowledge in the use in oil gas field, does not do the perusal once more.

Preferably, the clamping ring, the wedge, outer fender umbrella, interior fender umbrella and the number of limit gum cover is two, and all about middle gum cover axis mutually perpendicular.

Preferably, the end part of the wedge-shaped body is sleeved with a slip, one end of the slip is attached to the end part of the inner protection umbrella, and the slip is mainly used for being tightly clamped with the wall of the hole.

Preferably, the lateral wall of the other end of the guide shoe is tightly attached to the lateral wall of the pressure ring at one end of the bridge plug main body, so that the connection between the guide shoe and the pressure ring is improved.

Preferably, the side wall of the other end of the screw protector is tightly attached to the side wall of the pressure ring at the other end of the bridge plug main body, so that connection between the screw protector and the pressure ring is improved.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, the worker detains the oblique corner that the lead tip that the silk protects on the guide shoe of slope corner just supports next bridging plug is equipped with at rotatory in-process for fix preceding bridging plug, under the supplementary fixed of this bridging plug self slips, it is fixed more firm, make to bore the bridge plug garrulous in-process the drill bit can not appear and drive the rotatory skidding of bridging plug, and then realize boring the bridge plug garrulous fast, realize boring garrulous fast of bridging plug.

Drawings

FIG. 1 is a schematic view of the overall structure of the quick drilling bridge plug of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;

FIG. 3 is a schematic view of a partial enlarged structure at B in FIG. 1 according to the present invention

FIG. 4 is a schematic structural view of the quick drilling bridge plug according to the present invention;

fig. 5 is a schematic cross-sectional view at C-C in fig. 4 according to the present invention.

In the figure: 1. guiding a shoe; 2. thread protection; 3. a central tube; 4. pressing a ring; 5. a wedge-shaped body; 6. an outer protective umbrella; 7. an inner protective umbrella; 8. edge rubber sleeves; 9. a middle rubber sleeve; 10. slips; 101. a base; 102. and (5) leading.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1-5, the present invention relates to a quick drilling bridge plug, which comprises a bridge plug main body, and a first connecting assembly and a second connecting assembly oppositely disposed at two ends of the bridge plug main body;

the first connecting assembly comprises a guide shoe 1 arranged at one end of the bridge plug main body, the guide shoe 1 comprises a base 101 and a guide head 102, the diameter of the base 101 is larger than that of the guide head 102, the guide head 102 and the base 101 are integrally welded, the guide head 102 and the base 101 are hollow, and an inclined corner is arranged at the end part of the guide head 102;

the second connecting assembly is arranged at the other end of the bridge plug main body, the worker buckle thread protector 2 comprises an inner ring and an outer ring, the outer wall of the inner ring coincides with the inner wall of the outer ring, the length of the inner ring of the worker buckle thread protector 2 is smaller than that of the outer ring of the worker buckle thread protector 2, the outer ring of the worker buckle thread protector 2 is far away from the end part of the bridge plug main body, one end of an inclined corner is flushed with the end part of the inner ring of the worker buckle thread protector 2, the inclined corner of the worker buckle thread protector 2 is matched with the inclined corner of the leader 102, the inclined corner of the worker buckle thread protector 2 just supports the inclined corner of the leader 102 on the leader 1 on the next bridge plug in the rotating process, so that the previous bridge plug is fixed, under the auxiliary fixing of the bridge plug slip 10, the fixing is firmer, the drill bit cannot drive the bridge plug to rotate and slip in the bridge plug crushing process, and the bridge plug can be rapidly drilled and crushed.

The bridge plug main body comprises a central pipe 3, two ends of the central pipe 3 are respectively in through connection with the guide shoe 1 and the worker buckle thread protector 2, and the bridge plug main body is fixed by screws. The upper portion of the central tube 3 is sequentially sleeved with a pressure ring 4, a wedge body 5, an outer protective umbrella 6, an inner protective umbrella 7, an edge rubber sleeve 8 and an intermediate rubber sleeve 9, and the bridge plug main body is common general knowledge in the use process of an oil-gas field and is not repeated.

Wherein, the clamping ring 4 the wedge 5 the outer fender umbrella 6 the inner fender umbrella 7 and the number of the limit gum cover 8 are two, and all about 9 axis mutually perpendicular of middle gum cover.

Wherein, 5 tip covers of wedge are equipped with slips 10, slips 10 one end with 7 tip of interior protection umbrella are laminated each other, and slips 10 mainly used is closely deadly with the hole wall card.

The side wall of the other end of the guide shoe 1 is tightly attached to the side wall of the compression ring 4 at one end of the bridge plug main body, so that the connection between the guide shoe 1 and the compression ring 4 is improved.

The side wall of the other end of the screw protector 2 is tightly attached to the side wall of the pressure ring 4 at the other end of the bridge plug main body, so that connection between the screw protector 2 and the pressure ring 4 is improved.

The utility model discloses a theory of operation does: referring to fig. 1-5, the utility model discloses a fast drilling bridge plug at first gets into in the oil gas hole under drive equipment's drive through the drill bit, then constantly push forward earlier, push the bridge plug equipment in the whole oil gas hole together, then the drill bit begins to rotate, it is rotatory to drive the bridge plug through frictional force o under the initial condition for worker detains the inclined corner of silk protection 2 and just supports the inclined corner that the nose 102 tip that the guide shoe on the guide shoe 1 on next bridge plug was equipped with in rotatory process, guarantee that next bridge plug fixes the previous bridge plug, under the supplementary fixed of this bridge plug self slips 10, it is fixed more firm, make can not appear that the drill bit drives the bridge plug and rotate and skid in the bridge plug process of smashing, and then realize boring the bridge plug fast.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Fast brill bridging plug, its characterized in that: the bridge plug comprises a bridge plug main body, a first connecting assembly and a second connecting assembly, wherein the first connecting assembly and the second connecting assembly are oppositely arranged at two ends of the bridge plug main body;

the first connecting assembly comprises a guide shoe (1) arranged at one end of the bridge plug main body, the guide shoe (1) comprises a base (101) and a guide head (102), the diameter of the base (101) is larger than that of the guide head (102), the guide head (102) and the base (101) are integrally welded, the guide head (102) and the base (101) are hollow, and an inclined corner is arranged at the end part of the guide head (102);

the second coupling assembling is in including setting up worker of the bridging plug main part other end is detained the silk and is protected (2), worker detains the silk and protects (2) including inner circle and outer lane, the inner circle outer wall with the outer lane inner wall coincides each other, just worker detains silk and protects (2) inner circle length and be less than worker detains silk and protect (2) outer lane length, worker detains silk and protects (2) outer lane and keep away from bridging plug main part tip is equipped with the inclination corner, just inclination corner one end with worker detains silk and protects (2) inner circle tip and flush, just worker detains silk and protect (2) inclination corner with leading (102) inclination corner looks mutual adaptation.

2. The quick drill bridge plug of claim 1, wherein: the bridge plug main part includes center tube (3), center tube (3) both ends respectively with guide shoe (1) and worker detains silk and protect (2) through connection, and use the screw to fix.

3. The quick drill bridge plug of claim 2, wherein: the upper portion of the central tube (3) is sequentially sleeved with a pressure ring (4), a wedge-shaped body (5), an outer protective umbrella (6), an inner protective umbrella (7), an edge rubber sleeve (8) and an intermediate rubber sleeve (9).

4. The quick drill bridge plug of claim 3, wherein: the clamping ring (4) wedge (5) outer fender umbrella (6) interior fender umbrella (7) and the number of limit gum cover (8) is two, and all about middle gum cover (9) axis mutually perpendicular.

5. The quick drill bridge plug of claim 3, wherein: wedge (5) tip cover is equipped with slips (10), slips (10) one end with interior protective umbrella (7) tip laminates each other.

6. The quick drill bridge plug of claim 1, wherein: the side wall of the other end of the guide shoe (1) is tightly attached to the side wall of the pressure ring (4) at one end of the bridge plug main body.

7. The quick drill bridge plug of claim 6, wherein: the side wall of the other end of the screw protector (2) is tightly attached to the side wall of the pressure ring (4) at the other end of the bridge plug main body.