CN214221148U - Oil drilling wing is received and is used structure of changing flow - Google Patents
Oil drilling wing is received and is used structure of changing flow Download PDFInfo
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- CN214221148U CN214221148U CN202022941105.0U CN202022941105U CN214221148U CN 214221148 U CN214221148 U CN 214221148U CN 202022941105 U CN202022941105 U CN 202022941105U CN 214221148 U CN214221148 U CN 214221148U
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Abstract
The application discloses oil drilling is received wing and is used flow-changing structure, including coaxial connection in the cylindricality body at drilling rod top, cylindricality body axle center is formed with first logical chamber, first logical intracavity from top to bottom is coaxial to be fixed with piston cylinder and mandrel seat in proper order, the axle center of piston cylinder is formed with the second and leads to the chamber, the outer wall bottom seal of piston cylinder is fixed in first logical intracavity wall, the outer wall of piston cylinder with be formed with the backward flow chamber between the inner wall of cylindricality body, second logical intracavity wall is formed with the intercommunication the backward flow hole in backward flow chamber, mandrel seat tip is formed with a plurality of first through-holes rather than axially parallel along the hoop, second logical intracavity bottom is formed with the intercommunication to the sidestream chamber of first through-hole. The utility model has the advantages of directly through throwing into the shut-off ball, realized the change after the reaming completion and flowed the action, changed high-pressure fluid back again and all flowed down, do not get into the backward flow chamber for withdraw the wing of a knife.
Description
Technical Field
The application relates to petroleum drilling, in particular to a flow-changing structure for a wing of the petroleum drilling.
Background
The task of drilling a borehole from the surface using mechanical equipment or manual labor is known as drilling. Generally refers to the engineering of drilling boreholes and large diameter water-supply wells for the exploration or exploitation of liquid and gaseous minerals such as oil, gas, and the like. The application of well drilling in national economic construction is extremely wide.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil drilling is received wing and is used structure of changing flows.
In order to achieve the above object, the present invention provides the following technical solutions.
The embodiment of the application discloses oil drilling is received wing and is used flow structure that changes, including the cylindricality body of coaxial coupling in drilling rod top, cylindricality body axle center is formed with first logical chamber, first logical intracavity from top to bottom is fixed with piston cylinder and mandrel seat coaxially in proper order, the axle center of piston cylinder is formed with the second and leads to the chamber, the outer wall bottom seal of piston cylinder is fixed in first logical intracavity wall, be formed with the backward flow chamber between the outer wall of piston cylinder and the inner wall of cylindricality body, second logical intracavity wall is formed with the backward flow hole that communicates the backward flow chamber, mandrel seat tip is formed with a plurality of first through-holes rather than axial parallel along the hoop, second logical intracavity bottom is formed with the side flow chamber that communicates to first through-hole, still include the closing piston that fits in second logical intracavity wall, the closing piston is fixed in the piston cylinder through the shearing pin, a fifth through cavity is formed at the axis of the closing piston, a bearing closing ball is attached in the fifth through cavity,
before the closing ball is not thrown in, the fifth through cavity is communicated with the backflow hole and the side flow cavity;
when the closing ball is thrown in, the closing ball enters the fifth through cavity from the first through cavity, the closing ball drives the closing piston to move downwards and break the shearing pin, the closing piston shields the backflow hole, and a lateral flow hole formed in the inner wall of the fifth through cavity is communicated with the lateral flow cavity.
Preferably, in the above flow-changing structure for oil drilling wing retraction, the closing piston is supported by an opening piston, and the opening piston is supported by the mandrel seat.
Preferably, in the above-mentioned flow-changing structure for oil drilling wing retraction, the piston cylinder and the mandrel holder are simultaneously and fixedly mounted in an inner cavity of a shaft sleeve, the shaft sleeve is fixedly mounted on an inner wall of the first through cavity, the backflow cavity is formed between the inner wall of the shaft sleeve and an outer wall of the piston cylinder, and the bottom of the outer wall of the piston cylinder is fixedly connected with the shaft sleeve in a sealing manner.
Preferably, in the above flow-changing structure for oil drilling wing retraction, a lower fixed seat is arranged at the bottom of the shaft sleeve, and the lower fixed seat supports the mandrel seat.
Preferably, in the above-mentioned flow-changing structure for oil drilling wing retraction, the bottom inner diameter of the fifth through cavity is gradually reduced.
Compared with the prior art, the utility model has the advantages of directly closing the ball through throwing in, realized the change after the reaming completion and flowed the action, changed back the high-pressure fluid again and all flowed down, do not get into the backward flow chamber for withdraw the wing of a knife.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is an initial schematic view of a reamer for use in oil drilling in accordance with an embodiment of the present invention;
FIG. 2 is an enlarged view of section A of FIG. 1;
FIG. 3 is an enlarged view of section B of FIG. 1;
FIG. 4 is an enlarged view of section C of FIG. 1;
FIG. 5 is a schematic view of a reamer for oil drilling after a ball has been dropped into the reamer in an embodiment of the present invention;
FIG. 6 is an enlarged view of section D of FIG. 5;
FIG. 7 is an enlarged view of section E of FIG. 5;
FIG. 8 is an enlarged view of section F of FIG. 5;
FIG. 9 is a schematic view of a reamer for oil drilling after a shut-off ball is introduced in an embodiment of the present invention;
FIG. 10 is an enlarged view of section G of FIG. 9;
FIG. 11 is an enlarged view of section H of FIG. 9;
fig. 12 is an enlarged view of section I in fig. 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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," "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 in specific cases to those skilled in the art.
Referring to FIGS. 1-12, a reamer 100 for use in oil drilling is comprised of 3 components:
the petroleum drilling reaming structure mainly extends out the blades to realize reaming operation;
the oil drilling reaming hole diversion structure mainly realizes diversion operation, can realize reverse flow of fluid after diversion, and pushes a piston to be flushed up to extend out of a blade;
the oil drilling wing is retracted by a flow-changing structure, the changed flow is changed again, the reverse flow is closed, and the extended blade which pushes the piston to move upwards is retracted again.
The oil drilling reaming diversion structure comprises a cylindrical body 101 coaxially connected to the top of a drill rod, a first through cavity 102 is formed in the axis of the cylindrical body 101, a piston cylinder 105 and a mandrel seat 106 are coaxially and sequentially fixed in the first through cavity 102 from top to bottom, a second through cavity 118 and a third through cavity 133 are respectively formed in the axes of the piston cylinder 105 and the mandrel seat 106, the bottom of the outer wall of the piston cylinder 105 is hermetically fixed on the inner wall of the first through cavity 102, a backflow cavity 111 is formed between the outer wall of the piston cylinder 105 and the inner wall of the cylindrical body 101, a backflow hole 112 communicated with the backflow cavity 111 is formed in the inner wall of the second through cavity 118, a plurality of first through holes 127 axially parallel to the mandrel seat 106 are formed in the outer side of the third through cavity 133, a side flow cavity 128 communicated with the first through hole 127 is formed in the bottom of the second through cavity 118, an opening piston 109 attached to the inner walls of the second through cavity 118 and the third through cavity 133 is further included, the opening piston 109 is fixed, a fourth through cavity 134 is formed at the axle center of the opening piston 109, an opening ball 135 is closely carried in the fourth through cavity 134,
before the opening ball 135 is not thrown, the piston 109 is opened to shield the return hole 112 and the side flow cavity 128;
when the opening ball 135 is dropped, the opening ball 135 enters the fourth through cavity 134 from the first through cavity 102, the opening ball 135 drives the opening piston 109 to move down and break the shear pin 107, and the second through cavity 118 is communicated with the backflow hole 112 and the side flow cavity 128.
In this technical scheme, during initial condition, fluid from first logical chamber bottom downward flow, flow to the drilling rod after leading to chamber and third logical chamber in proper order, open the ball and fall the back, the shear pin 107 fracture of downside, it is whole to move down to open the piston, because open the ball and sheltered from the logical chamber in middle part, fluid partly can continue the downflow through first through-hole, another part can be through backflow hole 112 towards backflow chamber 111 to promote the piston 110 and shift up, specifically open the wing of a knife action and can continue to state below.
Further, the bottom of the third through-cavity 133 is inwardly protruded to form an annular boss 136 supporting the opening piston 109.
In the technical scheme, the device is used for supporting and opening the piston and preventing the piston from falling to the drill rod.
Further, the opening piston 109 is fixedly installed at the bushing 137, the bushing 137 is fixedly installed at the coupling 138, the coupling 138 is fixed to the mandrel base 106 by the shear pin 107, the inner diameter of the bushing 137 is gradually reduced from the top to the bottom, and the opening ball 135 acts on the bushing 137.
In the technical scheme, the bushing bears the falling force of the opening ball, so that the damage of the opening piston can be prevented, and the reliability of the whole structure is improved.
Further, the piston cylinder 105 and the mandrel seat 106 are fixedly mounted in an inner cavity of the bushing 116, the bushing 116 is fixedly mounted on an inner wall of the first through cavity 102, the backflow cavity 111 is formed between the inner wall of the bushing 116 and an outer wall of the piston cylinder 105, and the bottom of the outer wall of the piston cylinder 105 is fixedly connected with the bushing 116 in a sealing manner. The bottom of the sleeve 116 is provided with a lower fixing seat 132, and the lower fixing seat 132 supports the mandrel seat 106.
Among this technical scheme, fix piston cylinder and dabber seat simultaneously on the axle sleeve, made things convenient for the installation, can install the axle sleeve again in the cylindricality body after piston cylinder and dabber seat are installed in the axle sleeve earlier, otherwise the installation is difficult.
The flow changing structure for the wing retraction of the petroleum drilling comprises a cylindrical body 101 coaxially connected to the top of a drill rod, a first through cavity 102 is formed in the axis of the cylindrical body 101, a piston cylinder 105 and a mandrel seat 106 are coaxially and sequentially fixed in the first through cavity 102 from top to bottom, a second through cavity 118 is formed in the axis of the piston cylinder 105, the bottom of the outer wall of the piston cylinder 105 is hermetically fixed on the inner wall of the first through cavity 102, a backflow cavity 111 is formed between the outer wall of the piston cylinder 105 and the inner wall of the cylindrical body 101, a backflow hole 112 communicated with the backflow cavity 111 is formed in the inner wall of the second through cavity 118, a plurality of first through holes 127 axially parallel to the mandrel seat 106 are formed in the circumferential direction in the end portion of the mandrel seat 106, a lateral flow cavity 128 communicated with the first through holes 127 is formed in the bottom of the second through cavity 118, a closing piston 108 attached to the inner wall of the second through cavity 118, the closing piston 108 is fixed to the piston cylinder 105 through a shearing pin 107, a fifth through cavity 129 is formed in the axis of the closing piston 108, the fifth through cavity 129 snugly carries a closing ball 130,
before the shut-off ball 130 is not put in, the fifth through cavity 129 communicates with the return hole 112 and the side flow cavity 128;
when the closing ball 130 is put in, the closing ball 130 enters the fifth through cavity 129 from the first through cavity 102, the closing ball 130 drives the closing piston 108 to move downwards and break the shear pin 107, the closing piston 108 blocks the backflow hole 112, and a lateral flow hole 131 formed in the inner wall of the fifth through cavity 129 is communicated with the lateral flow cavity 128.
In the technical scheme, the backflow hole is blocked after the ball is opened and put into the backflow hole. In specific implementation, a closing ball is put in, the closing ball drives the closing piston 108 to move downwards, the upper shear pin 107 is broken, the closing piston blocks the backflow hole 112, meanwhile, a lateral flow hole 131 formed in the closing piston 108 flows into the lateral flow cavity 128, fluid continuously flows downwards through the first through hole 127, and due to the fact that no fluid exists in the backflow cavity, the blades are recovered, and specific actions are described below.
Further, the closing piston 108 is supported by the opening piston 109, and the opening piston 109 is supported by the mandrel holder 106.
In this solution, the closing piston is supported on the opening piston after falling.
Further, the piston cylinder 105 and the mandrel seat 106 are fixedly mounted in an inner cavity of the bushing 116, the bushing 116 is fixedly mounted on an inner wall of the first through cavity 102, the backflow cavity 111 is formed between the inner wall of the bushing 116 and an outer wall of the piston cylinder 105, and the bottom of the outer wall of the piston cylinder 105 is fixedly connected with the bushing 116 in a sealing manner.
Among this technical scheme, fix piston cylinder and dabber seat simultaneously on the axle sleeve, made things convenient for the installation, can install the axle sleeve again in the cylindricality body after piston cylinder and dabber seat are installed in the axle sleeve earlier, otherwise the installation is difficult. The bottom of the sleeve 116 is provided with a lower fixing seat 132, and the lower fixing seat 132 supports the mandrel seat 106.
Further, the bottom inner diameter of the fifth through cavity 129 is gradually reduced.
In the technical scheme, the inner diameter of the closing ball is gradually reduced to prevent the closing ball from being incapable of driving the closing piston to move downwards.
The oil drilling reaming structure comprises a cylindrical body 101 coaxially connected to the top of a drill rod, a first through cavity 102 is formed in the axis of the cylindrical body 101, a central pipe 103 and a piston cylinder 105 are coaxially and fixedly installed in the first through cavity 102 from top to bottom in sequence, a sixth through cavity 117 and a second through cavity 118 are formed in the axes of the central pipe 103 and the piston cylinder 105 respectively, a push piston 110 is sleeved outside the central pipe 103, the top of the push piston 110 is hermetically connected to the central pipe 103, the bottom of the push piston 110 extends to the piston cylinder 105, a backflow cavity 111 is formed between the inner wall of the push piston 110 and the outer wall of the piston cylinder 105, the oil drilling reaming structure further comprises a plurality of blades 113 uniformly installed outside the central pipe 103 along the circumferential direction, the bottom of the blades 113 is supported on the push piston 110, a chute 119 extending upwards towards the outer side of the central pipe 103 is formed on the cylindrical body 101, and the side surface of the blades 113 is attached to slide in the chute 119,
when fluid enters the return cavity 111, the pushing piston 110 is pushed to move upwards, and the blades 113 are driven to extend out along the sliding groove 119, so that hole expansion is realized.
In the technical scheme, the extension of the blade is mainly realized, when fluid impacts in the backflow cavity, the piston is pushed to move upwards, and the blade is pushed to extend upwards and outwards due to the fact that the blade is connected with the cylindrical body in a sliding mode through the sliding groove, so that the reaming action is realized.
Further, a push ring 120 is disposed between the blades 113 and the push piston 110, and the push ring 120 is fixed by a clamping seat 121.
In the technical scheme, the pushing ring is indirectly connected, so that the problems of blocking and the like are prevented.
Furthermore, the bottom of the outer side of the piston cylinder 105 is hermetically fixed on the inner wall of the first through cavity 102, and the inner wall of the second through cavity 118 is formed with a return hole 112 communicated with the return cavity 111. An opening piston 109 and a closing piston 108 are arranged in the piston cylinder 105 in a fit mode, and when the opening piston 109 moves downwards, the return hole 112 is communicated with the second through cavity 118; when the closing piston 108 moves down, the closing piston 108 blocks the return hole 112. A lower mandrel 104 is arranged between the piston cylinder 105 and the central tube 103, and a return cavity 111 is formed between the outer wall of the lower mandrel 104 and the inner wall of the pushing piston 110.
In the technical scheme, the piston is firstly opened to move downwards, so that fluid impacts in the backflow cavity; and then the piston is closed to block the backflow hole, so that no fluid impacts exist in the backflow cavity, namely the piston is pushed to move upwards and reset respectively.
Further, a stop ring 122 is arranged at the top of the blade 113, a compression spring 123 is arranged at the top of the stop ring 122, and the stop ring 122 and the compression spring 123 are simultaneously sleeved outside the central tube 103.
In this technical scheme, compression spring is used for will promoting the piston and reset, pushes down the wing of a knife promptly after the reaming is accomplished, withdraws to in the spout.
Further, a spring protection tube 124 is disposed outside the compression spring 123, and the spring protection tube 124 is mounted to the cylindrical body 101.
In the technical scheme, the protection device is used for protecting the compression spring.
Further, the top of the spring protection tube 124 is connected to the upper fixing seat 125 through a screw thread, the upper fixing seat 125 is fixed to the cylindrical body 101, and an adjusting gap 126 is formed between the bottom of the spring protection tube 124 and the stop ring 122.
In the technical scheme, the distance from the spring protection tube to the retaining ring can be adjusted through the threads, namely, the maximum extension length of the blade is that the retaining ring is attached to the spring protection tube, when the spring protection tube is in threaded connection and moves downwards, the extension of the blade is reduced, when the spring protection tube moves upwards, the blade can extend convexly a plurality of points, and the extension of the blade is adjusted.
Furthermore, a central tube 103, a lower mandrel 104, a piston cylinder 105 and a mandrel base 106 are coaxially and hermetically connected in sequence from top to bottom in the first through cavity 102, and a closing piston 108 and an opening piston 109 are coaxially and fixedly attached in sequence from top to bottom in the piston cylinder 105 through a shear pin 107.
In this solution, the closing piston and the opening piston are fixed in the piston cylinder by shear pins 107 at the same time.
Furthermore, a water hole 114 is formed on one side of the cylindrical body 101, the water hole 114 extends to the action position of the blade 113, and the water hole 114 is communicated with the backflow cavity 111.
In the technical scheme, the water hole has the function of flushing water and cooling when the cutter blade is reamed, so that the cutter blade is protected.
Further, when the piston 109 is opened and moves downwards, the water hole 114 is communicated with the return cavity 111; when the closing piston 108 moves downwards, the pushing piston 110 shields the water hole 114. A sleeve 115 is disposed inside the port 114.
In the technical scheme, the fluid in the water hole comes from the reflux cavity, and the structure is compact and reasonable.
Further, the outer wall of the return chamber 111 is formed on the inner wall of the push piston 110 and the inner wall of the bushing 116, and the inner wall of the return chamber 111 is formed on the outer wall of the lower core 104 and the outer wall of the piston cylinder 105.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (5)
1. A flow changing structure for oil drilling wing retraction is characterized by comprising a cylindrical body coaxially connected to the top of a drill rod, a first through cavity is formed in the axis of the cylindrical body, a piston cylinder and a mandrel seat are coaxially and sequentially fixed in the first through cavity from top to bottom, a second through cavity is formed in the axis of the piston cylinder, the bottom of the outer wall of the piston cylinder is hermetically fixed on the inner wall of the first through cavity, a backflow cavity is formed between the outer wall of the piston cylinder and the inner wall of the cylindrical body, a backflow hole communicated with the backflow cavity is formed in the inner wall of the second through cavity, a plurality of first through holes axially parallel to the backflow cavity are formed in the end portion of the mandrel seat in the circumferential direction, a lateral flow cavity communicated with the first through holes is formed in the bottom of the second through cavity, a closing piston attached to the inner wall of the second through cavity is further included, and is fixed to the piston cylinder through a shearing pin, a fifth through cavity is formed at the axis of the closing piston, a bearing closing ball is attached in the fifth through cavity,
before the closing ball is not thrown in, the fifth through cavity is communicated with the backflow hole and the side flow cavity;
when the closing ball is thrown in, the closing ball enters the fifth through cavity from the first through cavity, the closing ball drives the closing piston to move downwards and break the shearing pin, the closing piston shields the backflow hole, and a lateral flow hole formed in the inner wall of the fifth through cavity is communicated with the lateral flow cavity.
2. The flow diverting structure for wing retraction in oil drilling according to claim 1, characterized in that the closing piston is supported on an opening piston supported on the mandrel seat.
3. The oil drilling wing-closing flow-changing structure as claimed in claim 1, wherein the piston cylinder and the mandrel holder are simultaneously and fixedly mounted in an inner cavity of a shaft sleeve, the shaft sleeve is fixedly mounted on the inner wall of the first through cavity, the backflow cavity is formed between the inner wall of the shaft sleeve and the outer wall of the piston cylinder, and the bottom of the outer wall of the piston cylinder is fixedly connected with the shaft sleeve in a sealing manner.
4. The flow-changing structure for the wing retraction in oil drilling as claimed in claim 3, wherein a lower fixing seat is provided at the bottom of the shaft sleeve, and the lower fixing seat supports the mandrel seat.
5. The flow-changing structure for oil drilling wing retraction according to claim 1, wherein the bottom inner diameter of the fifth through cavity is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022941105.0U CN214221148U (en) | 2020-12-10 | 2020-12-10 | Oil drilling wing is received and is used structure of changing flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022941105.0U CN214221148U (en) | 2020-12-10 | 2020-12-10 | Oil drilling wing is received and is used structure of changing flow |
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| CN214221148U true CN214221148U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022941105.0U Active CN214221148U (en) | 2020-12-10 | 2020-12-10 | Oil drilling wing is received and is used structure of changing flow |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593895A (en) * | 2020-12-10 | 2021-04-02 | 苏州安能捷工具有限公司 | Oil drilling wing is received and is used structure of changing flow |
| CN112627770A (en) * | 2020-12-10 | 2021-04-09 | 苏州安能捷工具有限公司 | Diversion structure for petroleum drilling and reaming eyes |
-
2020
- 2020-12-10 CN CN202022941105.0U patent/CN214221148U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593895A (en) * | 2020-12-10 | 2021-04-02 | 苏州安能捷工具有限公司 | Oil drilling wing is received and is used structure of changing flow |
| CN112627770A (en) * | 2020-12-10 | 2021-04-09 | 苏州安能捷工具有限公司 | Diversion structure for petroleum drilling and reaming eyes |
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