CN108316883B - Automatic mud filling tool - Google Patents
Automatic mud filling tool Download PDFInfo
- Publication number
- CN108316883B CN108316883B CN201710033958.4A CN201710033958A CN108316883B CN 108316883 B CN108316883 B CN 108316883B CN 201710033958 A CN201710033958 A CN 201710033958A CN 108316883 B CN108316883 B CN 108316883B
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- Prior art keywords
- mandrel
- ball valve
- switch
- core shaft
- valve assembly
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- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000010412 perfusion Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Coating Apparatus (AREA)
Abstract
The automatic mud pouring tool comprises: a supporting seat; the mandrel is detachably arranged on the supporting seat in a penetrating way; the sealing ring is sleeved on the mandrel; the ball valve assembly is arranged on the mandrel; the switch cylinder part is connected with the ball valve assembly; the upper end of the centralizing guide cone is detachably connected with the lower end of the mandrel; pushing the sleeve; when the mandrel is in the first position, the lower end of the mandrel extends downwards into the push sleeve, the switch cylinder component is vertically arranged and coated on the mandrel so that the ball valve assembly is opened to conduct the mandrel and the guide cone is righted, when the mandrel is in the second position, the lower end of the mandrel upwards leaves the push sleeve, and the switch cylinder component is horizontally arranged and leaves the mandrel so that the ball valve assembly is closed to disconnect the mandrel and the guide cone is righted. According to the automatic mud pouring tool provided by the embodiment of the invention, the functions of mud pouring and sealing can be automatically realized according to the field condition in the using process of the tool.
Description
Technical Field
The invention relates to the technical field of petroleum and natural gas exploration and drilling, in particular to an automatic mud grouting tool.
Background
At present, in the process of drilling for exploration and development of oil and gas fields, a certain amount of slurry is required to be injected into a casing pipe firstly in the traditional casing pipe running operation, then the casing pipe running operation is carried out, each well needs to stop grouting the slurry in a tank in a segmented mode, the casing pipe running operation time is prolonged, and if the casing pipe string stops at the bottom of the well for too long time, sticking and blocking accidents are easy to occur, especially in complex wells. Once the casing string is stuck in the process below, a wellhead circulation head must be used to establish mud circulation to ensure smooth running of the casing, but this can extend the overall period of the casing running operation.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention aims to provide an automatic mud filling tool, which can automatically realize mud filling and sealing functions according to field conditions during the tool using process. The method replaces the old casing pipe setting grouting operation mode, and reduces the phenomena of time and labor consumption, easy slurry leakage, sticking and the like of casing pipe setting grouting.
The automatic mud pouring tool comprises:
a supporting seat;
the mandrel is detachably arranged on the supporting seat in a penetrating manner, and the upper end of the mandrel protrudes upwards out of the supporting seat;
the sealing ring is sleeved on the mandrel;
the ball valve assembly is arranged on the mandrel;
the switch cylinder component is connected with the ball valve assembly;
the upper end of the centralizing guide cone is detachably connected with the lower end of the mandrel;
pushing the sleeve;
the core shaft is movable between a first position and a second position, when the core shaft is located at the first position, the lower end of the core shaft extends downwards into the push sleeve, the lower surface of the supporting seat abuts against the upper end face of the push sleeve, the outer peripheral wall of the sealing ring is in contact with the inner peripheral wall of the push sleeve, the switch cylinder component is vertically arranged and covers the core shaft so that the ball valve assembly is opened to conduct the core shaft and the centering guide cone, when the core shaft is located at the second position, the lower end of the core shaft upwards leaves the push sleeve, and the switch cylinder component is horizontally arranged and leaves the core shaft so that the ball valve assembly is closed to disconnect the core shaft and the centering guide cone.
Advantageously, the ball valve assembly comprises an upper ball seat, a ball valve body, a lower ball seat and a switch knob, wherein the spherical surface of the ball valve body is respectively matched with the conical surface of the upper ball seat and the conical surface of the lower ball seat, the ball valve body is matched with the switch knob by a key slot, and the opening/closing of the ball valve body is controlled by the rotation of the switch knob.
Advantageously, the switch cylinder component comprises a switch cylinder body, a first switch rotating arm and a second switch rotating arm, the cross section of the switch cylinder body is of a U-shaped structure, the first switch rotating arm is rotatably connected with the mandrel, and the second switch rotating arm and the switch knob are in square fit to transmit torque.
Advantageously, the lower ball seat adopts two sealing structures, namely a conical surface sealing structure and a rubber sealing structure.
Advantageously, the cross-section of the sealing ring is trapezoidal.
Advantageously, the lower surface of the sealing ring is formed with an annular groove opening downwards.
Advantageously, the centralizing guide cone comprises a centralizing sleeve and a guide cone, the centralizing sleeve and the guide cone being relatively rotatable.
Advantageously, the lower end of the guide cone is a conical surface.
Advantageously, the righting sleeve is made of a flexible and self-lubricating material.
According to the automatic mud filling tool provided by the embodiment of the invention, the well completion time can be greatly shortened, mud circulation can be established at any time according to the well conditions to reduce the phenomena of casing pipe blockage, sticking and the like, and meanwhile, no mud leakage of a well platform is ensured, and the operation environment is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of an automatic mud perfusion tool according to one embodiment of the present invention;
FIG. 2 is a schematic view of an automatic mud perfusion tool according to another embodiment of the present invention;
FIG. 3 is a schematic view of a ball valve assembly of an automatic mud injection tool according to one embodiment of the present invention;
FIG. 4 is a schematic view of a switch cylinder component of an automatic mud pour tool according to one embodiment of the present invention;
FIG. 5 is a schematic view of a centralizing pilot cone of an automatic mud pour tool according to one embodiment of the present invention;
FIG. 6 is another schematic view of a centralizing guide cone of an automatic mud pour tool according to one embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An automatic mud-priming tool according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 6, an automatic mud pouring tool according to an embodiment of the present invention includes: the support seat 100, the mandrel 200, the sealing ring 300, the ball valve assembly 400, the switch cylinder part 500, the centering guide cone 600 and the push sleeve 700.
Specifically, the mandrel 200 is detachably (e.g., by screwing) inserted into the support base 100, and the upper end of the mandrel 100 protrudes upward from the support base 100.
The seal ring 300 is fitted over the mandrel 100. Advantageously, the cross-section of the sealing ring 300 is trapezoidal. Further, the lower surface of the seal ring 300 is formed with an annular groove that opens downward. That is, the sealing ring adopts the cup-shaped structure of inversion, and the higher the pressure is when mud pressure risees, the more closely the sealing body is laminated with push sleeve 700 inner wall, and sealed effect is better.
The ball valve assembly 400 is disposed on the mandrel 100. Advantageously, the ball valve assembly 400 includes an upper ball seat 410, a ball valve body 420, a lower ball seat 430, and a switching knob 440, wherein a spherical surface of the ball valve body 420 is fitted with a tapered surface of the upper ball seat 410 and a tapered surface of the lower ball seat 430, respectively, and the ball valve body 420 and the switching knob 440 are fitted with a key way therebetween, and the opening/closing of the ball valve body 420 is controlled by the rotation of the switching knob 440. Further, the lower ball seat 430 adopts two sealing structures, namely conical surface sealing and rubber sealing, so that the ball valve can achieve double effects of high-pressure sealing and low-pressure sealing after being closed.
The switch cylinder part 500 is connected to the ball valve assembly 400. Advantageously, the switch cylinder part 500 includes a switch cylinder 510, a first switch rotating arm 520 and a second switch rotating arm 530, the cross-section of the switch cylinder 510 is a "U" shaped structure adapted to fit the spindle 200, the first switch rotating arm 520 is rotatably connected to the spindle 200, and the second switch rotating arm 530 is in a square fit with the switch knob 440 for torque transmission.
The upper end of the centralizing pilot cone 600 is removably coupled (e.g., threadably coupled) to the lower end of the mandrel 200. Advantageously, the centering guide cone 600 includes a centering sleeve 610 and a guide cone 620, the centering sleeve 610 and the guide cone 620 being rotatable relative to each other. Further, the centering sleeve 610 is made of a flexible and self-lubricating material. Further, the lower end of the guide cone 620 is a tapered surface.
The mandrel 200 is movable between a first position and a second position.
When the mandrel 200 is in the first position, the lower end of the mandrel 200 extends down into the push sleeve 700. At this time, the lower surface of the support seat 100 abuts against the upper end surface of the push sleeve 700, the outer circumferential wall of the seal ring 300 contacts with the inner circumferential wall of the push sleeve 700, and the switch cylinder member 500 is vertically arranged and covers the mandrel 200 to open the ball valve assembly 400, so as to conduct the mandrel 200 and the centering guide cone 600.
When the mandrel 200 is in the second position, the lower end of the mandrel 200 is moved upward away from the push sleeve 700, and the switch cylinder member 500 is horizontally disposed and moved away from the mandrel 200 to close the ball valve assembly 400 to disconnect the mandrel 200 from the centering guide cone 600.
In other words, as shown in fig. 1, the automatic mud grouting tool according to the embodiment of the invention extends downward into the push sleeve 700, the switch barrel part 500 is vertically arranged under the interference of the push sleeve 700, the second switch rotating arm 530 drives the ball valve to rotate, so that the ball valve assembly 400 is in an open state, and the mud flow passage inside the tool is conducted, so that grouting can be performed.
As shown in fig. 2, when the automatic mud grouting tool according to the embodiment of the present invention is pulled out of the push sleeve 700, the switch cylinder member 500 falls downward and is horizontally disposed under the action of gravity, the second switch rotating arm 530 drives the ball valve to rotate, so as to force the ball valve assembly 400 to be in a closed state, and the mud flow passage inside the tool is cut off, that is, the mud at the upper portion cannot flow out, thereby achieving the purpose of automatically stopping grouting.
According to the automatic mud filling tool provided by the embodiment of the invention, the well completion time can be greatly shortened, mud circulation can be established at any time according to the well conditions to reduce the phenomena of casing pipe blockage, sticking and the like, and meanwhile, no mud leakage of a well platform is ensured, and the operation environment is improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" 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" or "second" 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 specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the embodiments of the present invention have been shown and described, it is understood that the embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the embodiments without departing from the scope of the present invention.
Claims (9)
1. An automatic mud grouting tool, comprising:
a supporting seat;
the mandrel is detachably arranged on the supporting seat in a penetrating manner, and the upper end of the mandrel protrudes upwards out of the supporting seat;
the sealing ring is sleeved on the mandrel;
the ball valve assembly is arranged on the mandrel;
the switch cylinder component is connected with the ball valve assembly and comprises a switch cylinder body, a first switch rotating arm and a second switch rotating arm, the first switch rotating arm is rotatably connected with the mandrel, and the second switch rotating arm is in square fit with the switch knob to transmit torque;
the upper end of the centralizing guide cone is detachably connected with the lower end of the mandrel;
pushing the sleeve;
the core shaft is movable between a first position and a second position, when the core shaft is located at the first position, the lower end of the core shaft extends downwards into the push sleeve, the lower surface of the supporting seat abuts against the upper end face of the push sleeve, the outer peripheral wall of the sealing ring is in contact with the inner peripheral wall of the push sleeve, the switch cylinder component is vertically arranged and covers the core shaft so that the ball valve assembly is opened to conduct the core shaft and the centering guide cone, when the core shaft is located at the second position, the lower end of the core shaft upwards leaves the push sleeve, and the switch cylinder component is horizontally arranged and leaves the core shaft so that the ball valve assembly is closed to disconnect the core shaft and the centering guide cone.
2. The automatic mud pouring tool of claim 1, wherein the ball valve assembly comprises an upper ball seat, a ball valve body, a lower ball seat and a switch knob, wherein the ball valve body has a spherical surface which is respectively matched with the conical surface of the upper ball seat and the conical surface of the lower ball seat, and the ball valve body is matched with the switch knob by a key slot, and the switch knob is rotated to control the on/off of the ball valve body.
3. The automatic mud pouring tool of claim 1, wherein the cross section of the switch cylinder body is of a U-shaped structure.
4. The automatic mud pouring tool of claim 2, wherein the lower ball seat is sealed with both a conical seal and a rubber seal.
5. The automatic mud pouring tool of claim 1, wherein the cross-section of the sealing ring is trapezoidal.
6. An automatic mud pouring tool according to claim 5, wherein the lower surface of the sealing ring is formed with a downwardly opening annular groove.
7. The automated mud perfusion tool of claim 1, wherein the centralizing guide cone comprises a centralizing sleeve and a guide cone, the centralizing sleeve and the guide cone being rotatable relative to each other.
8. The automatic mud pour tool of claim 7, wherein the lower end of the pilot cone is a conical surface.
9. The mud self-priming tool of claim 7, wherein the centralizing sleeve is made of a flexible and self-lubricating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033958.4A CN108316883B (en) | 2017-01-16 | 2017-01-16 | Automatic mud filling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033958.4A CN108316883B (en) | 2017-01-16 | 2017-01-16 | Automatic mud filling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108316883A CN108316883A (en) | 2018-07-24 |
| CN108316883B true CN108316883B (en) | 2020-04-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710033958.4A Active CN108316883B (en) | 2017-01-16 | 2017-01-16 | Automatic mud filling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108316883B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2122990U (en) * | 1992-04-22 | 1992-11-25 | 吴俊杰 | self-grouting type back pressure valve |
| CN2334979Y (en) * | 1997-12-23 | 1999-08-25 | 陈秋枫 | Gravity valve |
| CN2744904Y (en) * | 2004-09-22 | 2005-12-07 | 宁波恒久工艺品有限公司 | Ball valve |
| US20070187086A1 (en) * | 2006-02-14 | 2007-08-16 | Anatoly Nikolayevich Ivanov | Device for cutting slot-shaped seats in wells by hydro-sandblasting method |
| CN201567988U (en) * | 2009-12-16 | 2010-09-01 | 中国石油集团渤海钻探工程有限公司 | Automatic grouting circulation device for casing running |
| CN201810849U (en) * | 2010-05-12 | 2011-04-27 | 浙江师范大学 | Numerical control electronic valve |
| CN202767940U (en) * | 2012-07-23 | 2013-03-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Self-service slurry grouting device |
| CN104514516A (en) * | 2013-09-30 | 2015-04-15 | 扬州市油田金达实业有限公司 | Automatic grouting float collar |
| CN203879429U (en) * | 2014-05-14 | 2014-10-15 | 江苏如通石油机械股份有限公司 | Automatic grouting circulation device |
| CN104234627B (en) * | 2014-09-17 | 2016-08-17 | 中国石油天然气集团公司 | Casing pipe running device and the method for operation is driven based on top |
| CN208203212U (en) * | 2018-03-22 | 2018-12-07 | 中海石油(中国)有限公司湛江分公司 | Sleeve grouting cap |
-
2017
- 2017-01-16 CN CN201710033958.4A patent/CN108316883B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108316883A (en) | 2018-07-24 |
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