CN109812231B - Pulse vibration accelerating tool - Google Patents
Pulse vibration accelerating tool Download PDFInfo
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- CN109812231B CN109812231B CN201910238029.6A CN201910238029A CN109812231B CN 109812231 B CN109812231 B CN 109812231B CN 201910238029 A CN201910238029 A CN 201910238029A CN 109812231 B CN109812231 B CN 109812231B
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- turntable
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- pulse vibration
- tool
- vibration acceleration
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- 238000005553 drilling Methods 0.000 claims abstract description 27
- 230000003321 amplification Effects 0.000 claims abstract description 16
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 16
- 230000000737 periodic effect Effects 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 22
- 230000001133 acceleration Effects 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000004615 ingredient Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Abstract
The application provides a pulse vibration speed-up tool, this pulse vibration speed-up tool includes: body, carousel, multistage amplitude amplification cavity. The body extends in a longitudinal direction. The carousel sets up in this internally, has offered the runner on the carousel, and the runner extends along the axial spiral of carousel, has offered the variable cross section passageway that is linked together with the runner on the body inner wall of carousel upper reaches. The multistage amplitude amplification chamber is arranged on the inner wall of the body at the downstream of the turntable. The multistage amplitude amplification chamber is communicated with the flow channel so as to generate periodic axial vibration on the body. The pulse vibration accelerating tool can shorten the operation time, improve the drilling efficiency and reduce the labor intensity of workers. Simple structure and obvious amplitude amplification effect. The pulse vibration accelerating tool can convert the static friction force between the drilling tool and the well wall into dynamic friction force, so that the friction coefficient and friction force are reduced, and the transmission effect of the drilling pressure is improved.
Description
Technical Field
The application relates to the field of petroleum and natural gas exploitation and drilling tools, in particular to a pulse vibration accelerating tool.
Background
With the wide use of large displacement wells and horizontal wells, the requirements on drilling tools are increasing. Due to dead weight and the like, the friction between the drilling tool and the well wall is large in the drilling process, so that the pressure of the drilling tool is reduced, and the drilling efficiency is affected. Once the pressure supporting phenomenon occurs, the mechanical drilling speed is reduced, if the drilling tool suddenly slips, the tool surface is changed, so that the tool surface swinging difficulty is increased, the deflecting effect is affected, the drilling bit and the drilling tool are damaged due to the fact that drilling is stopped when the pressure supporting phenomenon is serious, underground accidents such as drilling clamps are easy to form when the friction force and the adsorption force are large, and economic loss is caused.
For this, no effective solution is currently available.
Disclosure of Invention
In order to overcome the defects in the prior art, researchers find that proper periodic axial vibration is applied to a drill string, and friction between the drill string and a well wall can be changed from static friction to dynamic friction, so that friction resistance in the drilling process can be reduced, effective weight on bit is increased, and the purpose of improving the drilling speed is achieved.
In view of the above, the invention aims to provide a pulse vibration accelerating tool which can overcome the problems of complex structural design and poor generality existing in the existing tool, and the pulse vibration accelerating tool achieves the purposes of simple structure, convenient operation and high-efficiency drilling.
The specific technical scheme of the invention is as follows:
the invention provides a pulse vibration accelerating tool, which comprises:
a body extending in a longitudinal direction;
the rotary table is arranged in the body, a flow passage is formed in the rotary table, the flow passage extends spirally along the axial direction of the rotary table, and a variable cross-section passage communicated with the flow passage is formed in the inner wall of the body at the upstream of the rotary table;
the multistage amplitude amplification chamber is arranged on the inner wall of the body at the downstream of the turntable and is communicated with the flow channel so as to generate periodic axial vibration on the body.
In a preferred embodiment, the inlet section of the variable-section channel is circular, and the outlet section is elliptical.
In a preferred embodiment, the multi-stage amplitude amplification chamber includes a primary chamber, a secondary chamber, and a tertiary chamber that are in communication with each other and gradually decrease in radius.
In a preferred embodiment, a protruding portion is arranged on the inner wall of the body between the rotary disc and the primary chamber, and the rotary disc is abutted against the protruding portion.
In a preferred embodiment, the turntable is provided with a first rolling bearing at the outer edge of the surface of the turntable in contact with the boss.
In a preferred embodiment, the side wall of the turntable in contact with the body is provided with a second rolling bearing in the circumferential direction.
In a preferred embodiment, the flow channels are equally spaced on the turntable.
In a preferred embodiment, the number of flow channels is at least four.
In a preferred embodiment, the multi-stage amplitude amplification chamber further comprises a quaternary chamber in communication with the tertiary chamber, the quaternary chamber having a drilling tool connected therein.
In a preferred embodiment, the joints of the primary chamber, the secondary chamber and the tertiary chamber are chamfered.
By the technical scheme, the beneficial effect of this application lies in:
(1) When the pulse vibration accelerating tool is used, fluid flows into the body from the variable-section channel at the upper part, passes through the helically extending flow channel in the turntable and finally passes through the multistage amplitude amplifying chamber at the lower part. The fluid pressure is converted into mechanical energy of the rotary table, the rotary table is driven to axially rotate around the rotary table in the body, so that the effective overflow area between the upper variable-section channel and the rotary table is changed, further, effective periodic axial vibration can be realized, the operation time can be shortened, the drilling efficiency can be improved, and the labor intensity of workers can be reduced.
(2) The pulse vibration accelerating tool has a simple structure, and particularly under complex underground conditions, the simple structure can ensure the reliability of the tool, and the amplitude amplifying effect is obvious.
(3) The pulse vibration accelerating tool converts the static friction force between the drilling tool and the well wall into the dynamic friction force, reduces the friction coefficient and the friction force, and improves the transmission effect of the drilling pressure.
Specific embodiments of the present application are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the present application may be employed. It should be understood that the embodiments of the present application are not limited in scope thereby. The embodiments of the present application include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding the understanding of the present application, and are not particularly limited. Those skilled in the art who have the benefit of the teachings of this application may select various possible shapes and scale dimensions to practice this application as the case may be. In the drawings:
FIG. 1 is a schematic diagram of a pulse vibration acceleration tool according to an embodiment of the present application;
FIG. 2 is an isometric view of a pulse vibration acceleration tool according to an embodiment of the present application;
FIG. 3 is a top view of a pulse vibration acceleration tool according to an embodiment of the present application;
FIG. 4a is a front view of a variable cross-section channel of a pulse vibration speed increaser according to an embodiment of the present application;
FIG. 4b is a schematic A-A cross-sectional view of a variable cross-section channel of a pulse vibration acceleration tool according to an embodiment of the present application;
FIG. 4c is a top view of a variable cross-section channel of a pulse vibration speed increaser according to an embodiment of the present application;
FIG. 5 is an isometric view of a turntable of a pulse vibration acceleration tool according to an embodiment of the present application;
FIG. 6 is a front view of a turntable of a pulse vibration acceleration tool of an embodiment of the present application;
FIG. 7 is a top view of a turntable of a pulse vibration acceleration tool according to an embodiment of the present application;
fig. 8 is a schematic C-C cross-sectional view of a turntable of a pulse vibration acceleration tool of an embodiment of the present application.
Reference numerals of the above drawings:
1. variable cross-section channel, 2, turntable, 3, primary chamber, 4, secondary chamber, 5, tertiary chamber, 6, quaternary chamber, 7, runner, 8, first rolling bearing, 9, second rolling bearing, 10, body, 11, boss, 12, chamfer
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are within the scope of the present application.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, the present invention provides a pulse vibration acceleration tool including: a body 10, a turntable 2, and a multi-stage amplitude amplifying chamber. The body 10 extends in the longitudinal direction. The turntable 2 is arranged in the body 10, a flow channel 7 is formed in the turntable 2, the flow channel 7 extends along the axial direction of the turntable 2 in a spiral manner, and a variable cross-section channel 1 communicated with the flow channel 7 is formed in the inner wall of the body 10 at the upstream of the turntable 2. The multistage amplitude amplification chamber is arranged on the inner wall of the body 10 at the downstream of the turntable 2; the multistage amplitude amplification chamber communicates with the flow channel 7 to generate periodic axial vibration to the body 10.
In use, fluid can enter the flow channel 7 of the turntable 2 of the body through the variable cross-section channel 1, and because the flow channel 7 in the turntable 2 extends spirally, when the fluid passes through the spiral flow channel 7 in the turntable 2, the wall surface of the flow channel 7 on one side is subjected to the pressure (i.e. thrust) of the fluid, and the fluid drives the turntable 2 to rotate around the axis of the body 10 in the body 10. Whereby the effective flow area between the variable cross-section channel 1 and the turntable 2 will be changed. When the effective flow area is minimized, the fluid will be in a high pressure state in the variable cross-section channel 1; when the effective flow area is maximized, the fluid will be at a low pressure in the variable cross-section channel 1.
Further, the alternating high and low pressure of the fluid will affect the rotational speed of the turntable and thus the effective flow rate per unit time of the fluid. After the fluid flows out of the flow channel 7 of the turntable 2, the fluid passes through the multistage amplitude amplification chambers from top to bottom, and the fluid can strike the joint (chamfer 12) between the two chambers due to the smaller diameter of the downstream chamber, so that thrust is generated. In this way, since the fluid is in a periodically high pressure state, a periodically strong pushing force is generated to the chamber walls between the chambers of the lower amplitude amplifying chamber, and thus periodic axial vibration is generated.
The pulse vibration accelerating tool can shorten the operation time, improve the drilling efficiency and reduce the labor intensity of workers. Simple structure especially under complicated underground condition, and simple structure can guarantee the reliability of instrument, and amplitude amplification effect is obvious. The pulse vibration accelerating tool can convert the static friction force between the drilling tool and the well wall into dynamic friction force, so that the friction coefficient and friction force are reduced, and the transmission effect of the drilling pressure is improved.
In this embodiment, the body 10 is generally cylindrical, and extends along a longitudinal direction, the turntable 2 is generally disposed in the body 10, and has a certain thickness (i.e. an axially extending distance), and referring to fig. 3 and 5, the flow channels 7 on the turntable 2 may be spirally and axially extended and uniformly opened on the turntable 2 at equal intervals. The inlet and outlet of the runner 7 are respectively arranged on two end surfaces of the turntable 2. According to the over-flow requirement, four or more than four flow passages 7 can be arranged on the turntable 2, and the specific number is not limited in the application, so that the flow passages can be reasonably arranged according to the actual requirement by a person skilled in the art.
Referring to fig. 4a, 4b and 4c, the variable cross-section channel 1 may be generally formed at an inner wall of the body 10 upstream of the turntable 2. The inlet section of the variable-section channel 1 is circular, the outlet section is elliptical, and the outlet can be communicated with the flow channel 7 of the turntable 2. The flow area of the circular cross-section channel may in theory be equal to the flow area of the elliptical cross-section channel. The variable cross section channel 1 can be matched with the rotary table 2 below the variable cross section channel by changing the cross section shape, so that the flow direction of fluid is changed, the rotary table 2 below rotates under the impact of the fluid, and finally pulse flow is formed.
A multistage amplitude amplifying chamber may be generally provided on the inner wall of said body 10 downstream of the turntable 2. The multistage amplitude amplification chamber may include a primary chamber 3, a secondary chamber 4, and a tertiary chamber 5 which communicate with each other and gradually decrease in radius. The joints of the primary chamber 3, the secondary chamber 4 and the tertiary chamber 5 may be provided with chamfers 12. The multistage amplitude amplification chamber communicates with the outlet of the flow channel 7 to generate periodic axial vibrations to the body 10.
In addition, the multi-stage amplitude amplification chamber further comprises a quaternary chamber 6 communicated with the tertiary chamber 5, and a drilling tool (not shown in the figure) is connected in the quaternary chamber 6, so that the cross-sectional radius of the quaternary chamber 6 can be slightly larger than that of the tertiary chamber 5.
In a preferred embodiment, in order to place the turntable 2 in the body 10, the turntable 2 may be provided with a protrusion 11 on an inner wall of the body 10 between the turntable 2 and the primary chamber 3, and the turntable 2 may abut against the protrusion 11.
As shown in fig. 6, 7 and 8, in order to reduce friction between the turntable 2 and the adjacent parts when the turntable 2 rotates, a first rolling bearing 8 may be provided at the outer edge of the surface of the turntable 2 in contact with the boss 11, and a second rolling bearing 9 may be provided at the circumferential direction of the sidewall of the turntable 2 in contact with the body 10.
The rolling bearing and the like provided in this embodiment may be any suitable conventional structure. For clarity and brevity, the technical solutions provided by the present embodiments will not be repeated here, and the drawings in the description are correspondingly simplified. It should be understood that the present embodiment is not limited in scope thereby.
All articles and references, including patent applications and publications, disclosed herein are incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprises" or "comprising" to describe combinations of elements, components, or steps herein also contemplates embodiments consisting essentially of such elements, components, or steps. By using the term "may" herein, it is intended that any attribute described as "may" be included is optional.
Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, section or step is not intended to exclude other elements, components, sections or steps.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the applicant be deemed to have such subject matter not considered to be part of the subject matter of the disclosed application.
Claims (9)
1. A pulse vibration acceleration tool, comprising:
a body extending in a longitudinal direction;
the rotary table is arranged in the body, a flow passage is formed in the rotary table, the flow passage extends spirally along the axial direction of the rotary table, and a variable cross-section passage communicated with the flow passage is formed in the inner wall of the body at the upstream of the rotary table;
the multistage amplitude amplification chamber is arranged on the inner wall of the body at the downstream of the turntable and is communicated with the flow channel so as to generate periodic axial vibration on the body;
the inlet section of the variable-section channel is circular, and the outlet section of the variable-section channel is elliptical;
when fluid passes through the flow passage in the turntable, the wall surface of the flow passage on one side is subjected to the pressure of the fluid, the fluid drives the turntable to rotate around the axis of the body in the body, thereby changing the effective flow area between the variable-section channel and the turntable, and when the effective flow area is minimum, the fluid is in a high-pressure state in the variable-section channel; when the effective flow area reaches a maximum, the fluid will be in a low pressure state in the variable cross-section channel, and the high and low pressure alternation of the fluid will affect the rotational speed of the turntable.
2. The pulse vibration acceleration tool of claim 1 wherein the multi-stage amplitude amplifying chamber comprises a primary chamber, a secondary chamber, and a tertiary chamber in communication with one another and of progressively decreasing radius.
3. The pulse vibration acceleration tool of claim 2 wherein the inner wall of the body between the turntable and the primary chamber has a boss against which the turntable abuts.
4. A pulse vibration acceleration tool according to claim 3, characterized in, that the turntable is provided with a first rolling bearing at the outer edge of the surface where the turntable contacts the boss.
5. The pulse vibration acceleration tool of claim 1, wherein the sidewall of the turntable in contact with the body is circumferentially provided with a second rolling bearing.
6. The pulse vibration acceleration tool of claim 1 wherein the flow channels are equally spaced on the turntable.
7. The pulse vibration acceleration tool of claim 1 wherein the number of flow channels is at least four.
8. The pulse vibration speed increaser of claim 2, wherein the multi-stage amplitude amplification chamber further comprises a four-stage chamber in communication with the three-stage chamber, the four-stage chamber having a drilling tool connected therein.
9. The pulse vibration acceleration tool of claim 2 wherein the junction of the primary chamber, the secondary chamber, and the tertiary chamber is chamfered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238029.6A CN109812231B (en) | 2019-03-27 | 2019-03-27 | Pulse vibration accelerating tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238029.6A CN109812231B (en) | 2019-03-27 | 2019-03-27 | Pulse vibration accelerating tool |
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| Publication Number | Publication Date |
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| CN109812231A CN109812231A (en) | 2019-05-28 |
| CN109812231B true CN109812231B (en) | 2024-03-26 |
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| CN201910238029.6A Active CN109812231B (en) | 2019-03-27 | 2019-03-27 | Pulse vibration accelerating tool |
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