CN113073964A - Large-displacement backflow sand blower - Google Patents
Large-displacement backflow sand blower Download PDFInfo
- Publication number
- CN113073964A CN113073964A CN202110266983.3A CN202110266983A CN113073964A CN 113073964 A CN113073964 A CN 113073964A CN 202110266983 A CN202110266983 A CN 202110266983A CN 113073964 A CN113073964 A CN 113073964A
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- CN
- China
- Prior art keywords
- sand blasting
- main body
- sleeve
- blasting main
- upper joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Abstract
The invention discloses a large-discharge-quantity backflow sand blower which comprises an upper connector, a sand blasting main body and a lower connector; the upper joint is in threaded connection with the sand blasting main body; the sand blasting main body is in threaded connection with the lower connector; a sliding sleeve is arranged in the sand blasting main body and is connected with the lower connector through a shearing pin; the sand blasting main body is provided with a sand blasting port; a fixed outer sleeve is arranged outside the sand blasting port; the fixed outer sleeve is in threaded connection with the sand blasting main body; an annular groove is formed between the outside of the sand blasting port and the fixed outer sleeve; a reverse flow sleeve is arranged in the annular groove; the opening direction of the backflow sleeve faces the upper joint; a guide sleeve is arranged outside the sand blasting main body between the opening direction of the backflow sleeve and the upper joint; the guide sleeve is connected with the sand blasting main body through a second fastening screw. Compared with the prior art, the invention has the beneficial effects that: the discharge capacity is big, and the wearability is good, and each part dismouting is nimble, and the change of being convenient for can reduce whole construction cost.
Description
Technical Field
The invention relates to the field of sand blasters, in particular to a large-discharge-capacity backflow sand blaster.
Background
The separate-layer fracturing construction is a new process developed on the basis of common fracturing construction, and has the characteristics of high construction efficiency and high economic benefit. The separate layer fracturing construction is supplemented by a large number of new tool research and development, and the experience of the process technology is accumulated, and the separate layer fracturing construction tends to a high-speed development period technically.
The layered fracturing sand blaster is a necessary tool for forming a layered fracturing operation pipe string. In the construction, the layered fracturing sand blaster sequentially opens liquid flow channels communicated with each construction interval by utilizing a ball-throwing and pressure-bouncing mode, and the layered fracturing construction is implemented under the coordination of downhole tools such as a packer and the like.
The separate layer fracturing sand blaster is arranged in the separate layer fracturing construction in the pit, and the sand body passes through the blowout of sandblast mouth high pressure, can cause very big erosion to instrument itself owing to the splashproof, through certain use after, will cause wearing and tearing to destroy, directly leads to the sand blaster body fracture when serious, causes equipment to be detained inside the well head, just needs salvage the operation this moment, very big extravagant man-hour.
However, frequent replacement of the sandblasters also causes a high cost burden.
Disclosure of Invention
The invention provides a large-discharge-quantity backflow sand blower which is characterized by large discharge quantity, good wear resistance, flexible assembly and disassembly of all parts, convenient replacement and capability of reducing the whole construction cost.
In order to achieve the purpose, the invention provides the following technical scheme: the large-displacement backflow sand blower comprises an upper joint, a sand blasting main body and a lower joint; the upper joint is in threaded connection with the sand blasting main body; the sand blasting main body is in threaded connection with the lower connector; a sliding sleeve is arranged in the sand blasting main body and is connected with the lower connector through a shearing pin; the sand blasting main body is provided with a sand blasting port; a fixed outer sleeve is arranged outside the sand blasting port; the fixed outer sleeve is in threaded connection with the sand blasting main body; an annular groove is formed between the outside of the sand blasting port and the fixed outer sleeve; a reverse flow sleeve is arranged in the annular groove; the opening direction of the backflow sleeve faces the upper joint; a guide sleeve is arranged outside the sand blasting main body between the opening direction of the backflow sleeve and the upper joint; the guide sleeve is connected with the sand blasting main body through a second fastening screw.
As optimization, one end of the sliding sleeve, which is positioned at the upper joint, is provided with a throttling nozzle; the throttling nozzle is clamped with the sliding sleeve; and a steel ball is arranged in the throttling nozzle.
Preferably, the joint of the throttling nozzle and the sliding sleeve is connected by viscose.
Preferably, a check ring is arranged between the backflow sleeve and the sand blasting main body.
Preferably, a zigzag spraying channel is formed between the sand blasting port and the backflow sleeve.
Preferably, the zigzag spraying channel is L-shaped.
As optimization, the guide sleeve is of a reducing structure from the upper joint to the lower joint, and the outer edge of the maximum diameter of the guide sleeve is flush with the inner diameter edge of the backflow sleeve.
As optimization, the throttling nozzle, the guide sleeve and the backflow sleeve are made of alloy materials; the alloy material is YG 8.
Preferably, the upper joint and the sand blasting main body are fixed with the sand blasting main body and the lower joint through first fastening screws.
As optimization, a first sealing ring is arranged between the upper joint and the sand blasting main body; a second sealing ring is arranged between the sand blasting main body and the guide sleeve; a third sealing ring is arranged between the sand blasting main body and the reverse flow sleeve; a fourth sealing ring is arranged between the sand blasting main body and the lower joint; a fifth sealing ring is arranged between the sliding sleeve and the lower joint; and 2 fourth sealing rings are arranged and are respectively positioned at two sides of the shearing pin.
Compared with the prior art, the invention has the following beneficial effects: through having optimized the structural design of sandblast mouth department, avoided the sand body at high pressure blowout in-process, owing to receive the wall of a well to block, the fluid can directly be splattered to the instrument on, cause the holistic erosion of instrument. The whole structure of the equipment is simple, all parts are assembled flexibly, and can be replaced aiming at all parts according to the use condition, so that the whole service life is prolonged, and the cost is reduced. Each key part is made of high-strength hard alloy, so that the wear resistance of the tool is enhanced, and the reliability of safe construction is achieved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
The sand blasting device comprises an upper joint 1, a sand blasting main body 2, a throttling nozzle 3, a guide sleeve 4, a reverse flow sleeve 5, a check ring 6, a fixing outer sleeve 7, a sliding sleeve 8, a lower joint 9, a first sealing ring 10, a second sealing ring 11, a third sealing ring 12, a fourth sealing ring 13, a fifth sealing ring 14, a first fastening screw 15, a second fastening screw 16 and a shearing pin 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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 those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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, such as "connected," which may be 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The large-displacement backflow sand blower comprises an upper joint 1, a sand blasting main body 2 and a lower joint 9; the upper joint 1 is in threaded connection with the sand blasting main body 2; the sand blasting main body 2 is in threaded connection with the lower connector 9; a sliding sleeve 8 is arranged in the sand blasting main body 2, and the sliding sleeve 8 is connected with the lower connector 9 through a shearing pin 17; the sand blasting main body 2 is provided with a sand blasting port; a fixed outer sleeve 7 is arranged outside the sand blasting port; the fixed outer sleeve 7 is in threaded connection with the sand blasting main body 2; an annular groove is formed between the outside of the sand blasting port and the fixed outer sleeve 7; a reverse flow sleeve 5 is arranged in the annular groove; the opening direction of the backflow sleeve 5 faces the upper connector 1; a guide sleeve 4 is arranged outside the sand blasting main body 2 between the opening direction of the counter flow sleeve 5 and the upper joint 1; the guide sleeve 4 is connected to the blasting body 2 by means of a second fastening screw 16.
One end of the sliding sleeve 8, which is positioned at the upper joint 1, is provided with a throttling nozzle 3; the throttle nozzle 3 is clamped with the sliding sleeve 8; a steel ball is arranged in the throttling nozzle 3. The size of sand flow discharge can be changed by changing the caliber of the throttling nozzle, and the split structure is adopted, so that the replacement of integral parts is avoided, and meanwhile, the uniform machining and manufacturing of the sliding sleeve are facilitated. The throttle nozzle simultaneously adopts high-strength hard alloy, so that the problem of low wear resistance is solved.
The joint of the throttle mouth 3 and the sliding sleeve 8 is connected by viscose.
A retainer ring 6 is arranged between the backflow sleeve 5 and the sand blasting main body 2.
A zigzag spraying channel is formed between the sand blasting port and the reverse flow sleeve 5. The zigzag ejection channel is L-shaped. The guide sleeve 4 is in a reducing structure from the upper joint 1 to the lower joint 9, and the maximum diameter outer edge of the guide sleeve 4 is flush with the inner diameter edge of the backflow sleeve 5. Through the structural design who optimizes the zigzag injection passageway for on the sand body sprays the uide bushing 4 through the water conservancy diversion, the uide bushing is removable split structure simultaneously, and most erosion of the sand body bears on uide bushing 4, has avoided the not long problem of the whole life of instrument.
The throttling nozzle 3, the guide sleeve 4 and the reverse flow sleeve 5 are made of alloy materials; the alloy material is YG 8.
The upper joint 1 and the sandblasting main body 2 and the lower joint 9 are fixed by a first fastening screw 15.
A first sealing ring 10 is arranged between the upper joint 1 and the sand blasting main body 2; a second sealing ring 11 is arranged between the sand blasting main body 2 and the guide sleeve 4; a third sealing ring 12 is arranged between the sand blasting main body 2 and the reverse flow sleeve 5; a fourth sealing ring 13 is arranged between the sand blasting main body 2 and the lower joint 9; a fifth sealing ring 14 is arranged between the sliding sleeve 8 and the lower joint 9; the number of the fourth sealing rings 13 is 2 and the fourth sealing rings are respectively positioned at two sides of the shearing pin 17.
The working principle is as follows:
through suppressing for the steel ball receives pressure, thereby crowds out absolutely with the pin 17 that cuts between sliding sleeve 8 and the lower clutch 9, makes sliding sleeve 8 and throttle mouth 3 move down, thereby makes the sandblast mouth spill, realizes the sandblast operation. The fluid is impacted through the high pressure, under the guide effect of the jet passage of breaking over for uide bushing 4 and palirrhea cover 5 bear most erosion, thereby reduce the fluid and under the reaction of the wall of a well, lead to the fact great erosion to sandblast main part 2 is whole, avoided sandblast main part 2 to receive the condition emergence that high pressure erosion leads to the easy fracture for a long time.
The large-displacement backflow sand blower is simple in overall structure, simple and reliable in connection mode of all components and convenient to replace.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. Big discharge capacity backflows sand blaster, its characterized in that: comprises an upper joint (1), a sand blasting main body (2) and a lower joint (9); the upper joint (1) is in threaded connection with the sand blasting main body (2); the sand blasting main body (2) is in threaded connection with the lower connector (9); a sliding sleeve (8) is arranged in the sand blasting main body (2), and the sliding sleeve (8) is connected with the lower connector (9) through a shearing pin (17); a sand blasting port is arranged on the sand blasting main body (2); a fixed outer sleeve (7) is arranged outside the sand blasting port; the fixed outer sleeve (7) is in threaded connection with the sand blasting main body (2); an annular groove is formed between the outside of the sand blasting port and the fixed outer sleeve (7); a reverse flow sleeve (5) is arranged in the annular groove; the opening direction of the counter flow sleeve (5) faces the upper joint (1); a guide sleeve (4) is arranged outside the sand blasting main body (2) between the opening direction of the counter flow sleeve (5) and the upper joint (1); the guide sleeve (4) is connected with the sand blasting main body (2) through a second fastening screw (16).
2. The large capacity flow back blast apparatus of claim 1, wherein: one end of the sliding sleeve (8) positioned at the upper joint (1) is provided with a throttling nozzle (3); the throttling nozzle (3) is clamped with the sliding sleeve (8); a steel ball is arranged in the throttling nozzle (3).
3. The large capacity flow back blast apparatus of claim 2, wherein: the joint of the throttling nozzle (3) and the sliding sleeve (8) is connected by viscose.
4. The large capacity flow back blast apparatus of claim 1, wherein: a check ring (6) is arranged between the counter flow sleeve (5) and the sand blasting main body (2).
5. The large capacity flow back blast apparatus of claim 1, wherein: a zigzag spraying channel is formed between the sand blasting port and the reverse flow sleeve (5).
6. The large capacity flow back blast apparatus of claim 5, wherein: the zigzag ejection channel is L-shaped.
7. The large capacity flow back blast apparatus of claim 6, wherein: the guide sleeve (4) is of a reducing structure from the upper joint (1) to the lower joint (9), and the maximum diameter outer edge of the guide sleeve (4) is flush with the inner diameter edge of the backflow sleeve (5).
8. The large capacity flow back blast apparatus of claim 2, wherein: the throttling nozzle (3), the guide sleeve (4) and the reverse flow sleeve (5) are made of alloy materials; the alloy material is YG 8.
9. The large capacity flow back blast apparatus of claim 1, wherein: the upper joint (1) and the sand blasting main body (2) and the lower joint (9) are fixed through a first fastening screw (15).
10. The large capacity flow back blast apparatus of claim 1, wherein: a first sealing ring (10) is arranged between the upper joint (1) and the sand blasting main body (2); a second sealing ring (11) is arranged between the sand blasting main body (2) and the guide sleeve (4); a third sealing ring (12) is arranged between the sand blasting main body (2) and the reverse flow sleeve (5); a fourth sealing ring (13) is arranged between the sand blasting main body (2) and the lower joint (9); a fifth sealing ring (14) is arranged between the sliding sleeve (8) and the lower joint (9); the number of the fourth sealing rings (13) is 2, and the fourth sealing rings are respectively positioned at two sides of the shearing pin (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110266983.3A CN113073964A (en) | 2021-03-11 | 2021-03-11 | Large-displacement backflow sand blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110266983.3A CN113073964A (en) | 2021-03-11 | 2021-03-11 | Large-displacement backflow sand blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113073964A true CN113073964A (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110266983.3A Pending CN113073964A (en) | 2021-03-11 | 2021-03-11 | Large-displacement backflow sand blower |
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| Country | Link |
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| CN (1) | CN113073964A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203978415U (en) * | 2014-07-25 | 2014-12-03 | 中国石油化工股份有限公司 | A kind of fluid erosion prevention throttling sandblaster |
| CN204060654U (en) * | 2014-06-20 | 2014-12-31 | 中国石油天然气股份有限公司 | Huge discharge reversal sandblaster |
| CN104594857A (en) * | 2015-01-13 | 2015-05-06 | 杰瑞能源服务有限公司 | Anti-back-splash sand blasting perforator |
| CN211950462U (en) * | 2020-03-25 | 2020-11-17 | 盐城市鑫源石化机械有限公司 | Novel special sliding sleeve sand blower |
| CN112360423A (en) * | 2021-01-12 | 2021-02-12 | 海塔石油科技有限公司 | Anti-splash protection sand blasting device and method |
-
2021
- 2021-03-11 CN CN202110266983.3A patent/CN113073964A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204060654U (en) * | 2014-06-20 | 2014-12-31 | 中国石油天然气股份有限公司 | Huge discharge reversal sandblaster |
| CN203978415U (en) * | 2014-07-25 | 2014-12-03 | 中国石油化工股份有限公司 | A kind of fluid erosion prevention throttling sandblaster |
| CN104594857A (en) * | 2015-01-13 | 2015-05-06 | 杰瑞能源服务有限公司 | Anti-back-splash sand blasting perforator |
| CN211950462U (en) * | 2020-03-25 | 2020-11-17 | 盐城市鑫源石化机械有限公司 | Novel special sliding sleeve sand blower |
| CN112360423A (en) * | 2021-01-12 | 2021-02-12 | 海塔石油科技有限公司 | Anti-splash protection sand blasting device and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210706 |