CN211342810U - Blasting type anti-sticking centralizer - Google Patents
Blasting type anti-sticking centralizer Download PDFInfo
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- CN211342810U CN211342810U CN201921308951.XU CN201921308951U CN211342810U CN 211342810 U CN211342810 U CN 211342810U CN 201921308951 U CN201921308951 U CN 201921308951U CN 211342810 U CN211342810 U CN 211342810U
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- inclined hole
- centralizer
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- type anti
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Abstract
The utility model discloses a blasting type anti-sticking centralizer, which comprises a centralizer body, a centralizing belt, a centralizing wing, a liquid flow channel and a blasting valve, wherein the liquid flow channel comprises a first inclined hole and a second inclined hole, the first inclined hole and the second inclined hole are obliquely arranged on the centralizer body and are positioned at two sides of the centralizing belt, the first inclined hole is communicated with the second inclined hole, and the blasting valve is arranged in the second inclined hole close to a drill bit; when the centralizer is subjected to mud packing separation, the first inclined hole and the second inclined hole are used for pressurizing, so that a blast valve in the second inclined hole close to the drill bit end is opened, a circulation and pressure balance channel is reestablished, the stratum is prevented from being broken due to high pressure, annular pressure is released, and the drilling tool can move and is not blocked; the utility model discloses can effectively improve well drilling work efficiency, the prevention well is scrapped, and still can continue to use after the new blasting valve is changed to the centralizer after the blasting.
Description
Technical Field
The utility model belongs to the technical field of oil equipment in the pit, especially, relate to an explosion type anti-sticking centralizer.
Background
When a drill string of a traditional centralizer (also called a stabilizer) rotates at a high speed in a hole, a slender drill rod is kept to run stably, so that the axis of a drill bit is close to the central line of the hole as much as possible. The stabilizer mainly reduces radial and axial violent vibration of the elastic system of the drill string in the hole; the eccentric wear of the drill bit and the drill rod is reduced; the coring quality is ensured; preventing well deviation or using manual directional drilling. The traditional centralizer has a simpler structure and is a large-diameter joint with straight or spiral rib plates. Under complex working conditions, due to the effects of different drilling fluid temperatures, sand contents, rheological properties, corrosivity and other conditions, mud packing is very easy to occur, and immeasurable loss is brought to drilling work.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an explosion type anti-sticking centralizer can effectively solve the mud bag and seal the problem of separating, effectively improves well drilling work efficiency.
The utility model provides an explosion type anti-sticking centralizer, includes the centralizer body, be equipped with on the centralizer body and right the area, it all is equipped with a plurality of wings of rightting on the area to right, still includes:
the liquid flow channel comprises a first inclined hole and a second inclined hole, the first inclined hole and the second inclined hole are obliquely arranged on the centralizer body and are positioned on two sides of the centralizing belt, and the first inclined hole is communicated with the bottom of the second inclined hole;
and the blasting valve is arranged in the second inclined hole close to the drill bit.
Preferably, in the above technical solution, axes of the first inclined hole and the second inclined hole are located in the same plane.
Preferably, in the above technical solution, a communication position between the first inclined hole and the second inclined hole is located inside the stabilizing belt.
Preferably, in the above technical scheme, the included angles between the first inclined hole and the horizontal plane and the included angles between the second inclined hole and the horizontal plane are both 3-8 °.
Above technical scheme is preferred, the inside of second inclined hole is equipped with the internal thread, the blast valve with second inclined hole threaded connection.
Preferably, in the above technical solution, the number of the blast hole groups is the same as the number of the straightening wings.
Preferably, the straightening wing is spiral, straight-edged or inclined straight-edged.
The utility model has the advantages and positive effects that: the utility model provides a blasting type anti-sticking centralizer, including centralizer body, right area, right wing, fluid flow channel and blast valve, fluid flow channel includes first inclined hole and second inclined hole, and first inclined hole and second inclined hole all incline to set up on the centralizer body, and lie in the both sides of right area, and first inclined hole and second inclined hole communicate, and the blast valve is located the second inclined hole that is close to the drill bit; when the centralizer is subjected to mud packing separation, the first inclined hole and the second inclined hole are used for pressurizing, so that a blast valve in the second inclined hole close to the drill bit end is opened, a circulation and pressure balance channel is reestablished, the stratum is prevented from being broken due to high pressure, annular pressure is released, and the drilling tool can move and is not blocked; the utility model discloses can effectively improve well drilling work efficiency, the prevention well is scrapped, and still can continue to use after the new blasting valve is changed to the centralizer after the blasting.
Drawings
Fig. 1 is a front view of a blasting-type anti-jamming centralizer according to a first embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
fig. 4 is a front view of the blasting-type anti-jamming centralizer according to the second embodiment of the present invention;
FIG. 5 is a sectional view taken along line C-C of FIG. 4;
fig. 6 is a front view of a blast valve according to a second embodiment of the present invention;
fig. 7 is a left side view of a blast valve according to a second embodiment of the present invention;
fig. 8 is a front view of the blasting-type anti-jamming centralizer according to the third embodiment of the present invention;
FIG. 9 is a sectional view taken along line D-D of FIG. 8;
fig. 10 is a front view of a blast valve provided in a third embodiment of the present invention;
fig. 11 is a left side view of the blast valve according to the third embodiment of the present invention.
Wherein: 1. a centralizer body; 2. a centralizing band; 3. righting the wing; 4. a blast valve; 5. a first inclined hole; 6. a second inclined hole; 7. an alloy wear-resistant band; 8. a female buckle; 9. and (4) a male buckle.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, 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 by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
The blasting type anti-jamming centralizer provided by the embodiment comprises a centralizer body 1, a centralizing belt 2, a centralizing wing 3, a liquid flow channel and a blasting valve 4, as shown in fig. 1-3. Be equipped with on the centralizer body 1 and right area 2, right all be equipped with a plurality of wings 3 of rightting on the area 2, adjacent right and form the guiding gutter between the wing 3, can utilize the scraping effect clearance pit shaft inner wall of righting the wing 3, return out the clearance from the guiding gutter simultaneously. The liquid flow channel is used for forming a liquid flow channel for flowing drilling liquid, the liquid flow channel comprises a first inclined hole 5 and a second inclined hole 6, the first inclined hole 5 and the second inclined hole 6 are obliquely arranged on the centralizer body 1 and are positioned on two sides of the centralizing belt 2, and the bottoms of the first inclined hole 5 and the second inclined hole 6 are communicated and are similar to an oil hole passing mode; the burst valve 4 is located in a second angled hole 6 adjacent the drill bit.
The axes of the first inclined hole 5 and the second inclined hole 6 are positioned in the same plane. The communication between the first inclined hole 5 and the second inclined hole 6 is positioned inside the centralizing belt 2. The included angles a and b between the first inclined hole 5 and the second inclined hole 6 and the horizontal plane are 3-8 degrees. In this embodiment, the angles between the first inclined holes 5 and the second inclined holes 6 and the horizontal plane are preferably 4 °. The inside of second inclined hole 6 is equipped with the internal thread, and blast valve 4 and second inclined hole 6 threaded connection.
The number of the burst valves 4 corresponds to the number of the straightening wings 3, and the number of the burst hole groups is the same as the number of the straightening wings 3. The number of the centralizing wings 3 is 3, the number of the blasting hole groups is 3 correspondingly, and each blasting hole group is internally provided with a blasting valve 4.
The straightening wing 3 is a spiral line type, a straight edge type or an inclined straight edge type, and the spiral line type, the straight edge type or the inclined straight edge type straightening wing belongs to the existing structure and is not described again; in this embodiment, as shown in fig. 1, the straightening wing has a spiral structure; a certain amount of alloy wear-resistant belts 7 are embedded on the surfaces of the straightening wings 3 and the diversion trenches between the straightening wings 3. After the pressure difference explosion type anti-blocking centralizer is assembled, the assembly is not greatly different from that of the traditional centralizer, the length of the body is slightly lengthened, and all functions of the traditional centralizer can be realized. The centralizer of this embodiment is common drilling column shape, and the upper end is box 8, and the lower extreme is pin thread 9, and box 8 and pin thread 9 belong to current structure, and pin thread 9 is used for connecting the drill bit, and box 8 is used for connecting the drilling rod.
Example 2
As shown in fig. 4-7, in this embodiment, the internal thread of the second inclined hole has a specification of M14, the external thread at the connection between one end of the blast valve and the second inclined hole has a specification of M14, and the other end of the blast valve is provided with a straight through groove for facilitating the operation of screwing the blast valve into the second inclined hole. The other structures are the same as those of embodiment 1, and are not described herein again.
Example 3
As shown in fig. 8-11, in this embodiment, the internal thread of the second inclined hole has a specification of M30, the external thread at the connection between one end of the burst valve and the second inclined hole has a specification of M30, and the other end of the burst valve is provided with a straight through groove, so that the burst valve can be conveniently screwed into the second inclined hole. The other structures are the same as those of embodiment 1, and are not described herein again.
The utility model discloses a working process: when drilling normally, the drilling tool can be used as a traditional centralizer; when the drill sticking can normally circulate, circulating the drilling fluid with large discharge capacity; when the drilling tool jamming can not normally circulate, the ground drilling mud pump is pressed, when the pressure difference between the upper part and the lower part of the anti-jamming centralizer exceeds the set value of the explosion valve 4, the explosion valve 4 is opened, the liquid flow channel of the centralizer body 1, namely the first inclined hole 5 and the second inclined hole 6, is opened, and circulating flushing can be carried out. The formation is prevented from being pressed open by high pressure, and meanwhile, the annular pressure is released, so that the drilling tool can move and is not blocked.
The utility model has the advantages and positive effects that: the utility model provides a blasting type anti-sticking centralizer, including centralizer body 1, righting area 2, righting wing 3, fluid flow channel and blast valve 4, fluid flow channel includes first inclined hole 5 and second inclined hole 6, and first inclined hole 5 and second inclined hole 6 all incline to set up on centralizer body 1, and lie in the both sides of righting area 2, and first inclined hole 5 communicates with second inclined hole 6, and blast valve 4 locates in the second inclined hole 6 that is close to the drill bit; when the centralizer is subjected to mud packing separation, the first inclined hole 5 and the second inclined hole 6 are used for pressurizing, so that the blast valve 4 in the second inclined hole 6 close to the drill bit end is opened, a circulation and pressure balance channel is reestablished, the stratum rupture caused by high pressure is prevented, the annular pressure is released, and the drilling tool can move and cannot be stuck; the utility model discloses can effectively improve well drilling work efficiency, the prevention well is scrapped, and still can continue to use behind 4 of the blasting valve that the centralizer after the blasting was more renewed.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (6)
1. The utility model provides an explosion type anti-sticking centralizer, includes the centralizer body, be equipped with on the centralizer body and right the area, it all is equipped with a plurality of wings of rightting on the area to right, its characterized in that still includes:
the liquid flow channel comprises a first inclined hole and a second inclined hole, the first inclined hole and the second inclined hole are obliquely arranged on the centralizer body and are positioned on two sides of the centralizing belt, and the first inclined hole is communicated with the bottom of the second inclined hole;
and the blasting valve is arranged in the second inclined hole close to the drill bit.
2. The blast-type anti-jamming centralizer of claim 1, wherein: the axes of the first inclined hole and the second inclined hole are positioned in the same plane.
3. The blast-type anti-jamming centralizer of claim 2, wherein: the communication position of the first inclined hole and the second inclined hole is positioned in the centralizing belt.
4. The blast-type anti-jamming centralizer of claim 3, wherein: the included angles between the first inclined hole and the horizontal plane and the included angles between the second inclined hole and the horizontal plane are 3-8 degrees.
5. The blast-type anti-jamming centralizer of claim 4, wherein: and internal threads are arranged in the second inclined hole, and the blasting valve is in threaded connection with the second inclined hole.
6. The blast-type anti-jamming centralizer of claim 1, wherein: the righting wing is in a spiral line type, a straight edge type or a deflection straight edge type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921308951.XU CN211342810U (en) | 2019-08-13 | 2019-08-13 | Blasting type anti-sticking centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921308951.XU CN211342810U (en) | 2019-08-13 | 2019-08-13 | Blasting type anti-sticking centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211342810U true CN211342810U (en) | 2020-08-25 |
Family
ID=72108607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921308951.XU Active CN211342810U (en) | 2019-08-13 | 2019-08-13 | Blasting type anti-sticking centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211342810U (en) |
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2019
- 2019-08-13 CN CN201921308951.XU patent/CN211342810U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300203 Tianjin Binhai New Area pilot free trade zone (central business district) Yicheng Taihe Xindu 19-2-1502 Patentee after: Weiou (Tianjin) Energy Technology Service Co.,Ltd. Address before: 300203 Tianjin Binhai New Area pilot free trade zone (central business district) Yicheng Taihe Xindu 19-2-1502 Patentee before: WELL (TIANJIN) ENERGY TECHNOLOGY SERVICE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |