CN211230284U - Mechanical active rotary guide shoe - Google Patents
Mechanical active rotary guide shoe Download PDFInfo
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- CN211230284U CN211230284U CN201921637728.XU CN201921637728U CN211230284U CN 211230284 U CN211230284 U CN 211230284U CN 201921637728 U CN201921637728 U CN 201921637728U CN 211230284 U CN211230284 U CN 211230284U
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- guide
- guide shoe
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- wall
- spiral mandrel
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Abstract
The utility model provides an active rotatory guide shoe of machinery, relate to oil and gas drilling cementing tool field, this active rotatory guide shoe of machinery includes spiral mandrel and guide shoe body, spiral mandrel is the cylinder of vertical setting, the guide shoe body is the tube-shape and has the holding chamber that link up from top to bottom, the cover is established outside spiral mandrel to this physical stamina slip ground cover of guide shoe, the guide shoe body is still through shearing pin and spiral mandrel fixed connection, the guide slot has been seted up on the spiral mandrel, the guide slot spirals along spiral mandrel's outer wall, be provided with on the inner wall of guide shoe body and correspond the complex uide pin with the guide slot, the uide pin inserts in the guide slot and can with the inner wall sliding fit of guide slot, the bottom of guide shoe body is provided with the milling structure. The mechanical active rotary guide shoe can scrape a sand bridge or a reducing well section, and ensures that a sleeve is smoothly put into the well.
Description
Technical Field
The utility model relates to an oil and gas well drilling and cementing tool field, in particular to active rotatory guide shoe of machinery.
Background
In the oil and gas well drilling and cementing construction, the casing is put into the well, which is a very important step. However, the problems of sand bridge and necking of the complicated well bore can cause that the casing is not put down in place, and the casing running operation and the subsequent well cementation construction are seriously influenced.
The existing method for solving the problems is to use an eccentric guide shoe to guide a sleeve to be put into a shaft bottom, but the existing eccentric guide shoe does not have a rotary cutting function, cannot finish the shaft wall, cannot fundamentally solve the problems of a sand bridge and necking, and often has the problems of blocking and failure in casing putting, so that the construction period and the construction cost are greatly increased.
In view of the above, the present inventors have designed a mechanical active rotation guide shoe through repeated experiments according to production design experiences in this field and related fields for many years, in order to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an active rotatory guide shoe of machinery can scrape sand bridge or undergauge well section, guarantees that the sleeve pipe goes into smoothly.
In order to achieve the above object, the utility model provides an active rotatory guide shoe of machinery, wherein, the active rotatory guide shoe of machinery includes spiral mandrel and guide shoe body, spiral mandrel is the cylinder of vertical setting, the guide shoe body is the tube-shape and has the holding chamber that link up from top to bottom, this physical stamina slip ground cover of guide shoe is established outside the spiral mandrel, the guide shoe body still through the shearing pin with spiral mandrel fixed connection, the guide slot has been seted up on the spiral mandrel, the guide slot is followed spiral winding of spiral mandrel's outer wall, be provided with on the inner wall of guide shoe body with the guide slot corresponds complex uide pin, the uide pin inserts in the guide slot and can with the inner wall sliding fit of guide slot, the bottom of guide shoe body is provided with the milling structure.
The mechanical active type rotary guide shoe comprises a guide shoe body, a guide shoe body and a grinding and milling structure, wherein the guide shoe body comprises a body joint, a connecting body and the grinding and milling body which are sequentially connected from top to bottom, and the grinding and milling structure is arranged on the outer wall of the grinding and milling body.
The mechanical active rotary guide shoe comprises a grinding and milling body, wherein the outer wall surface of the grinding and milling body is a conical surface gradually reducing in diameter from top to bottom, and the grinding and milling structure is a plurality of bulges arranged on the outer wall of the grinding and milling body.
The mechanical active rotary guide shoe as set forth above, wherein the shear pin is disposed between the body fitting and the helical mandrel.
The mechanical active rotary guide shoe as set forth above, wherein the guide pin is provided on an inner wall of the body joint.
The mechanical active type rotary guide shoe comprises a body joint, wherein the body joint is provided with a guide hole on the inner wall, one end of the guide pin is inserted into the guide hole, and the other end of the guide pin extends into the guide groove.
The mechanical active rotary guide shoe is characterized in that one end of the guide pin, which extends into the guide groove, is semi-spherical.
The mechanical active rotation guide shoe is characterized in that the top end of the guide groove and the bottom end of the guide groove are respectively provided with a stop structure for preventing the guide pin from being disengaged.
The mechanical active type rotary guide shoe comprises a guide shoe body, a spiral mandrel and a connecting part, wherein the spiral mandrel is provided with a connecting part used for connecting a sleeve, and the connecting part protrudes out of the guide shoe body.
The mechanical active type rotary guide shoe comprises a spiral spindle and a guide cavity, wherein the spiral spindle is provided with the guide cavity which penetrates up and down.
Compared with the prior art, the utility model has the following characteristics and advantages:
the utility model provides a mechanical active rotary guide shoe, the guide slot on its spiral mandrel and the uide pin that sets up on the guide shoe body inner wall constitute spiral rotary mechanism, during the use, connect mechanical active rotary guide shoe at the casing cluster the bottommost and along with the casing cluster after going into the pit, under the casing cluster descends and meets the circumstances of hindering, continue to put down the casing cluster, the spiral mandrel that is connected with the casing cluster continues to move down, and then cuts off the shearing pin; and then lifting the lower casing string, driving the guide shoe body to rotate through a spiral rotating mechanism between the spiral mandrel and the guide shoe body, and scraping the sand bridge and the reducing well section by a milling structure arranged at the bottom end of the guide shoe body to ensure that the casing is smoothly put into the guide shoe.
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, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation.
Fig. 1 is a schematic structural view of a mechanical active rotary guide shoe provided by the present invention;
fig. 2 is a schematic structural view of the central spiral mandrel of the present invention.
Description of reference numerals:
100. mechanical active rotary guide shoes; 10. A helical mandrel;
11. a guide groove; 20. A guide shoe body;
21. a guide pin; 22. Grinding and milling the structure;
23. a body joint; 24. A linker;
25. grinding and milling the body; 12. A connecting portion;
30. and shearing the pin.
Detailed Description
The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explanation only, and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as belonging to the scope of the invention.
As shown in fig. 1 and fig. 2, the utility model provides an active rotatory guide shoe 100 of machinery, this active rotatory guide shoe 100 of machinery includes spiral mandrel 10 and guide shoe body 20, spiral mandrel 10 is the cylinder of vertical setting, guide shoe body 20 is the tube-shape and has the holding chamber that link up from top to bottom, guide shoe body 20 can establish outside spiral mandrel 10 with sliding ground cover, guide shoe body 20 still through shearing pin 30 and spiral mandrel 10 fixed connection, guide slot 11 has been seted up on the spiral mandrel 10, guide slot 11 winds along the outer wall spiral of spiral mandrel 10, be provided with on guide shoe body 20's the inner wall and correspond complex uide pin 21 with guide slot 11, uide pin 21 inserts in the guide slot 11 and can with the inner wall sliding fit of guide slot 11, the bottom of guide shoe body 20 is provided with milling structure 22.
The utility model provides a mechanical active rotatory guide shoe 100, its guide slot 11 on the spiral mandrel 10 and set up the uide pin 21 on the inner wall of guide shoe body 20 and form spiral rotary mechanism, when using, connect mechanical active rotatory guide shoe 100 in the casing string the bottommost and along with the casing string after going into in the pit, under meeting the circumstances of hindering under the casing string is transferred, continue to transfer the casing string, the spiral mandrel 10 connected with the casing string continues to move down, and then cut off shear pin 30; then the lower casing string is lifted up, the guide shoe body 20 is driven to rotate through a spiral rotating mechanism between the spiral mandrel 10 and the guide shoe body 20, and a milling structure 22 arranged at the bottom end of the guide shoe body 20 scrapes a sand bridge and a reducing well section, so that smooth running of the casing is ensured.
The utility model provides an active rotatory guide shoe 100 of machinery, its rotatory moment of torsion satisfies the on-the-spot operation requirement, and safe and reliable can be arranged to casing operation use in any well type such as vertical well, horizontal well, can solve sand bridge and undergauge problem effectively, can guarantee that the casing string goes into smoothly.
In an alternative example of the present invention, the guide shoe body 20 includes a body joint 23, a connecting body 24 and a milling body 25 connected in sequence from top to bottom, and the milling structure 22 is disposed on the outer wall of the milling body 25.
In an alternative example, the body fitting 23, the connecting body 24 and the milling body 25 are connected by a screw thread.
The utility model discloses in, when guide shoe body 20 is rotatory, the mill structure 22 that is located the lower part of guide shoe body 20 is meeting and is hindering the position rotation, and then scrapes the sand bridge or enlarges the undergauge well section.
In an alternative embodiment of the present invention, the outer wall surface of the milling body 25 is a conical surface gradually reducing from top to bottom, and the milling structure 22 is a plurality of protrusions disposed on the outer wall of the milling body 25. The protrusion may be a protrusion made of cemented carbide material.
In an alternative example of the present invention, the shear pin 30 is disposed between the body fitting 23 and the helical mandrel 10.
In an alternative example, the body joint 23 has a pin hole formed along a radial direction of the body joint 23, and the outer wall of the spiral mandrel 10 has a shear pin groove formed thereon to be aligned with the pin hole, and the shear pin 30 is inserted into the shear pin groove through the pin hole.
In an alternative embodiment of the invention, the guide pin 21 is arranged on the body fitting 23.
In an alternative example, a guide hole is formed in a side wall of the body joint 23, one end of the guide pin 21 is inserted into the guide hole, and the other end of the guide pin 21 extends into the guide groove 11. Preferably, the guide hole penetrates through a sidewall of the body joint 23 in a radial direction of the body joint 23.
In an alternative example, the end of the guide pin 21 that extends into the guide slot 11 is semi-spherical.
In an alternative example of the present invention, the top end of the guide groove 11 and the bottom end of the guide groove 11 are respectively provided with a stopping structure for preventing the guide pin 21 from being disengaged, so as to ensure that the guide pin 21 always slides in the guide groove 11 and cannot be disengaged from the guide groove 11, and also ensure that the guide shoe body 20 cannot be disengaged from the spiral spindle 10.
In an alternative embodiment of the present invention, the top end of the spiral mandrel 10 is provided with a connecting portion 12 for connecting the sleeve, and the connecting portion 12 protrudes from the guide shoe body 20. In an alternative example, the inner wall of the connecting portion 12 is provided with an internal thread for connection.
In an alternative embodiment of the invention, the helical mandrel 10 has a flow guiding chamber running through it. Like this, when milling structure 22 scraping sand bridge or expand the undergauge well section, can pour into the drilling fluid into through the water conservancy diversion chamber, take out the well head through the detritus that circulation drilling fluid will scrape, guarantee to mill the smooth operation of structure 22.
Referring to fig. 1 and fig. 2, a specific method for using the mechanical active rotation guide shoe 100 according to the present invention is described in detail:
firstly, assembling a mechanical active rotary guide shoe 100, connecting the lower end of a connecting body 24 with a milling body 25 in a threaded manner, and connecting the upper end of the connecting body 24 with the lower end of a body joint 23 in a threaded manner, thereby completing the assembly of a guide shoe body 20; the screw mandrel 10 is inserted into the guide shoe body 20 at a predetermined position, the shear pin groove of the screw mandrel 10 is aligned with the pin hole of the body joint 23, the shear pin 30 is screwed into the pin hole of the body joint 23, the guide pin 21 is screwed into the guide hole of the body joint 23, and the half-round head of the front end of the guide pin 21 enters the guide groove 11 of the screw mandrel 10.
Then, the mechanical active rotation guide shoe 100 is installed at the lowest end of the casing string (the connecting part 12 of the spiral mandrel 10 is connected with the casing) and is put in along with the casing; when the casing is put down and meets a resistance, the casing string is continuously pressed down, and the shearing pin 30 on the mechanical active type rotating guide shoe 100 is sheared; subsequently, the casing string is lifted, the guide pin 21 slides in the guide groove 11 (spiral groove) of the spiral mandrel 10, the guide shoe body 20 (namely the body joint 23, the connecting body 24 and the milling body 25) rotates anticlockwise until the guide pin 21 reaches the bottommost end of the guide groove 11 of the spiral mandrel 10, at this time, the pump is started to circulate and the casing string is lowered, the mechanical active rotary guide shoe 100 drives the guide shoe body 20 (namely the body joint 23, the connecting body 24 and the milling body 25) to rotate clockwise through the sliding of the guide pin 21 in the guide groove 11 of the spiral mandrel 10, the milling structure 22 rotates at a blocking position, then a sand bridge is scraped or a reduced diameter well section is enlarged, meanwhile, the scraped rock debris is taken out of a well mouth by circulating drilling fluid, the drill string is repeatedly lifted and lowered, and finally the problems of the sand bridge and the reduced diameter are solved.
In the following description of the embodiments, the invention is described in detail, but the description is not to be construed as limiting the invention for any reason, and in particular, the features described in the different embodiments may be combined with each other as desired, thereby forming other embodiments, and the features are understood to be applicable to any one embodiment and not limited to the described embodiments unless explicitly described to the contrary.
Claims (10)
1. The utility model provides an active rotatory guide shoe of machinery, its characterized in that, active rotatory guide shoe of machinery includes spiral mandrel and guide shoe body, spiral mandrel is the cylinder of vertical setting, the guide shoe body is the tube-shape and has the holding chamber that link up from top to bottom, this physical stamina of guide shoe overlaps with sliding outside the spiral mandrel, the guide shoe body still through shearing pin with spiral mandrel fixed connection, the guide slot has been seted up on the spiral mandrel, the guide slot is followed spiral coiling of spiral mandrel's outer wall, be provided with on the inner wall of guide shoe body with the guide slot corresponds complex uide pin, the uide pin insert in the guide slot and can with the inner wall sliding fit of guide slot, the bottom of guide shoe body is provided with the milling structure.
2. A mechanical active rotary guide shoe according to claim 1, wherein the guide shoe body comprises a body joint, a connecting body and a milling body connected in sequence from top to bottom, and the milling structure is disposed on an outer wall of the milling body.
3. The mechanical active rotary guide shoe as claimed in claim 2, wherein the outer wall surface of the milling body is a conical surface gradually decreasing in diameter from top to bottom, and the milling structure is a plurality of protrusions disposed on the outer wall of the milling body.
4. The mechanical active rotary guide of claim 2, wherein the shear pin is disposed between the body fitting and the helical mandrel.
5. The mechanical active rotary guide shoe of claim 2, wherein the guide pin is disposed on an inner wall of the body joint.
6. A mechanical active rotary guide shoe as set forth in claim 5, wherein said body joint has a guide hole formed on an inner wall thereof, one end of said guide pin being inserted into said guide hole, and the other end of said guide pin extending into said guide groove.
7. The mechanical active rotation guide shoe as claimed in claim 5, wherein an end of the guide pin extending into the guide groove is semi-spherical.
8. The mechanical active rotation guide shoe as claimed in claim 1, wherein the top end of the guide groove and the bottom end of the guide groove are respectively provided with a stop structure for preventing the guide pin from being removed.
9. A mechanical active rotary guide shoe according to claim 1, wherein the top end of the helical spindle is provided with a connection portion for connecting a sleeve, said connection portion protruding from the guide shoe body.
10. A mechanical active rotary guide shoe according to claim 1 or 8, wherein the spiral spindle has a guide cavity extending therethrough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637728.XU CN211230284U (en) | 2019-09-29 | 2019-09-29 | Mechanical active rotary guide shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637728.XU CN211230284U (en) | 2019-09-29 | 2019-09-29 | Mechanical active rotary guide shoe |
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| Publication Number | Publication Date |
|---|---|
| CN211230284U true CN211230284U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921637728.XU Active CN211230284U (en) | 2019-09-29 | 2019-09-29 | Mechanical active rotary guide shoe |
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| CN (1) | CN211230284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109277A (en) * | 2020-08-31 | 2022-03-01 | 中国石油化工股份有限公司 | Self-adaptive rotary guide shoe |
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2019
- 2019-09-29 CN CN201921637728.XU patent/CN211230284U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109277A (en) * | 2020-08-31 | 2022-03-01 | 中国石油化工股份有限公司 | Self-adaptive rotary guide shoe |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230613 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Patentee after: BEIJING PETROLEUM MACHINERY Co.,Ltd. Address before: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee before: CHINA NATIONAL PETROLEUM Corp. Patentee before: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. |