CN210768675U - Sleeve milling integrated bailing device - Google Patents
Sleeve milling integrated bailing device Download PDFInfo
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- CN210768675U CN210768675U CN201921722941.0U CN201921722941U CN210768675U CN 210768675 U CN210768675 U CN 210768675U CN 201921722941 U CN201921722941 U CN 201921722941U CN 210768675 U CN210768675 U CN 210768675U
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- outer sleeve
- rotating shaft
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- rock debris
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Abstract
The utility model discloses a shell mills integration bailing device: the rock debris lifting device comprises an outer sleeve and a central rotating shaft, wherein the central rotating shaft is sleeved in the outer sleeve, a rock debris lifting channel is formed between the inner wall of the outer sleeve and the central rotating shaft, and a spiral blade is arranged on the outer surface of the central rotating shaft; the inner side of the outer sleeve is provided with a scrap storage cavity; this device promotes the passageway through the detritus with the bottom detritus through helical blade and transports to storing up the bits intracavity, and helical blade 21 carries the detritus and is strong than other transport mode to the carrying capacity of detritus, and the detritus of delivery is many to the sand bailing efficiency of this device has been improved, makes the detritus of bottom in the oil well in time clear up.
Description
Technical Field
The utility model relates to an oil well bailing technical field especially relates to a cover mills integration bailing device.
Background
The oil field blocks of the Xinjiang Tarim basin Hara-Ha pond, Hade and Tahe and the like are the target layers mainly comprising a clay basin system and an Ordovician system. The stratum of the section is mainly formed by mudstone and limestone, the hole diameter expansion rate of the upper section is high, the well wall is easy to fall off, and the Ordovician limestone of the lower section is easy to collapse. The oil reservoir burial depth is 6650-7000 m, and the formation fluid generally contains high hydrogen sulfide. During the operation of transferring to a machine for mining, the sand production from the stratum is serious in the operation processes of transferring, pumping and detecting, the sand production from the open hole stratum is serious due to the collapse of the well wall and the sand production, the sand burying phenomenon is serious, and the height of a sand column is 6.74-154.12 m. The sand jam of the mechanical production well is serious, and the production cycle is seriously influenced.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects existing in the prior art, the utility model provides a shell milling integrated bailing device can solve the problems.
The technical scheme is as follows: in order to achieve the above object, the utility model discloses a shell mills integration bailing device: the rock debris lifting device comprises an outer sleeve and a central rotating shaft, wherein the central rotating shaft is sleeved in the outer sleeve, a rock debris lifting channel is formed between the inner wall of the outer sleeve and the central rotating shaft, and a spiral blade is arranged on the outer surface of the central rotating shaft; the inner side of the outer sleeve is provided with a scrap storage cavity; the bottom rock debris is conveyed to the debris storage cavity through the rock debris lifting channel through the helical blades, so that the rock debris at the bottom in the oil well can be cleaned in time.
Furthermore, a screw motor is arranged at the top end of the central rotating shaft, a slurry channel is arranged in the middle of the central rotating shaft, and an outlet of the screw motor is communicated with the slurry channel; an upper joint is arranged above the screw motor, a feeding cavity is arranged in the upper joint, and the feeding cavity is communicated with an inlet of the screw motor; the upper joint is connected with the outer sleeve through a connecting cylinder, and the lower end of the connecting cylinder is connected with the upper end of the outer sleeve in a two-stage T-shaped opening shape; the milling drill bit at the bottom and the central rotating shaft are driven to rotate together through the screw motor, and massive rock debris at the bottom of the oil well can be stored in the debris storage cavity after being crushed, so that the purpose of cleaning the rock debris in the oil well is achieved.
Furthermore, a mud hole is formed in the bottom of the central rotating shaft and communicated with the mud channel; a slurry outlet pipe is fixedly arranged on the outer side wall of the center rotating shaft in the right direction of the slurry hole; the upper side and the lower side of the discharge pipe, which are opposite to the inner wall of the outer sleeve, are respectively provided with a material baffle plate, and the material baffle plates are obliquely and upwards arranged; a leakage hole is formed in the striker plate at the lower side and communicated with the outer side of the outer sleeve; the diameter of the leak hole is smaller than the diameter of the rock debris particles; the mud liquid that makes out from the mud hole of central pivot can directly go out in following the bailing device through the small opening like this setting, has avoided the mud liquid that comes out from central pivot to rise to the storage bits intracavity along with bottom detritus mixed liquid together.
Furthermore, the flower tube is arranged between the outer sleeve and the central rotating shaft, the upper end and the lower end of the flower tube are respectively connected and arranged on the inner wall of the outer sleeve through the fixed blocks, and a scrap storage cavity is formed between the flower tube and the inner wall of the outer sleeve; a plurality of partition plates are uniformly arranged on the outer wall of the perforated pipe along the length direction of the perforated pipe, and the partition plates partition the chip storage cavities to form a plurality of chip storage unit cavities; a micro-flow cavity is formed between the outermost end of the isolation plate and the inner wall of the outer sleeve; the convenience stores up the bits in grades to the rock debris like this, also is favorable to taking out of later stage rock debris to discharge simultaneously.
Furthermore, a milling and drilling bit is connected to the bottom of the central rotating shaft, a blocking sleeve is arranged on the outer side of the central rotating shaft connected with the milling and drilling bit, and a second helical blade is arranged on the outer side of the blocking sleeve; be provided with feedstock channel on the bearing support seat of milling drill bit and outer sleeve, feedstock channel and milling drill bit's work end intercommunication setting, in the mud liquid that bottom thoughtlessly has the detritus enters into the device from feedstock channel under the effect of negative pressure to promote the mud liquid that will thoughtlessly have the detritus through helical blade and carry to storing up the bits chamber.
Has the advantages that: the casing milling integrated bailing device of the utility model has the advantages that the spiral blades are used for conveying mud and rock debris, the conveying capacity for the rock debris is strong, the conveying efficiency is high, and the mud and the rock debris can be conveyed to a higher position, so that the device can be suitable for carrying out bailing work on a deeper oil well; be provided with a plurality of storage bits unit chambeies simultaneously, store up the bits to the detritus through storing up bits unit chamber in proper order, can ensure the safety of storing up the bits and make things convenient for the detritus of later stage clearance storage bits intracavity.
Drawings
FIG. 1 is a schematic view of the overall structure of the bailing device of the present invention;
FIG. 2 is a schematic top structure view of the bailing device of the present invention;
FIG. 3 is a schematic structural view of the chip storage chamber of the bailing device of the present invention;
FIG. 4 is a schematic view of the bottom drilling and milling structure of the bailing device of the present invention;
FIG. 5 is a schematic view of the slurry outlet structure of the bailing device of the present invention;
fig. 6 is a schematic diagram of the enlarged partial structure of fig. 4 according to the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The casing milling integrated bailing device as shown in the attached figures 1-6 comprises: the device comprises an outer sleeve 1 and a central rotating shaft 2, wherein the central rotating shaft 2 is sleeved in the outer sleeve 1, a screw motor 6 is arranged at the top end of the central rotating shaft 2, a slurry channel 22 is arranged at the middle part in the central rotating shaft 2, and an outlet of the screw motor 6 is communicated with the slurry channel 22; an upper joint 7 is arranged above the screw motor 6, a feeding cavity 71 is arranged in the upper joint 7, and the feeding cavity 71 is communicated with an inlet of the screw motor 6; the mud liquid is pressed into the upper joint from the feeding cavity of the upper joint, so that the mud liquid converts hydraulic pressure into mechanical energy at the screw motor, and the rotation of the central rotating shaft is guaranteed; the upper joint 7 is connected with the outer sleeve 1 through a connecting cylinder 8, and the lower end of the connecting cylinder 8 is connected with the upper end of the outer sleeve 1 in a two-stage T-shaped opening shape, so that the connection plays roles of sealing and torque transmission; the connecting cylinder 8 is arranged to prevent the outer sleeve 1 from being blocked and being incapable of moving when being arranged in the oil well, and the outer sleeve 1 can be only left in the oil well through the connection cylinder 8 and the outer sleeve 1 in a detachable mode, so that subsequent oil taking is facilitated. Wherein, the outer sleeve 1 is driven to rotate by a turntable motor arranged at the top of the outer joint 7, and the rotating directions of the outer sleeve 1 and the central rotating shaft 2 are opposite and have a rotating speed difference. A rock debris lifting channel 4 is formed between the inner wall of the outer sleeve 1 and the central rotating shaft 2, and the outer surface of the central rotating shaft 2 is provided with a helical blade 21; the inner side of the outer sleeve 1 is provided with a scrap storage cavity 5; through helical blade 21 with bottom detritus through detritus lifting channel 4 transport to storing up in the bits chamber 5, helical blade 21 carries the detritus and is strong to the carrying capacity of detritus than other transport mode, and the detritus of carrying is many to the bailing efficiency of this device has been improved.
The bottom of the central rotating shaft 2 is provided with a slurry hole 23, and the slurry hole 23 is communicated with the slurry channel 22; a slurry outlet pipe 24 is fixedly arranged on the outer side wall of the central rotating shaft 2 opposite to the slurry hole 23; the discharge pipe 24 is provided with a material baffle plate 11 respectively facing the upper side and the lower side of the inner wall of the outer sleeve 1, and the material baffle plate 11 is arranged obliquely upwards; a leakage hole 111 is formed in the striker plate 11 at the lower side, and the leakage hole 111 is communicated with the outer side of the outer sleeve 1; the diameter of the leak hole 111 is smaller than the diameter of the rock debris particles. Mud liquid that the mud hole 23 of follow central pivot 2 came out can directly go out from the bailing device through small opening 111 to shelter from it through striker plate 11, avoided the mud liquid that comes out from central pivot 2 to rise to in storing up bits chamber 5 along with bottom detritus mixed liquid.
The flower tube 9 is arranged between the outer sleeve 1 and the central rotating shaft 2, the upper end and the lower end of the flower tube 9 are respectively connected and arranged on the inner wall of the outer sleeve 1 through the fixed blocks 90, and the chip storage cavity 5 is formed between the flower tube 9 and the inner wall of the outer sleeve 1; a plurality of partition plates 91 are uniformly arranged on the outer wall of the perforated pipe 9 along the length direction of the perforated pipe, and the partition plates 91 partition the chip storage cavity 5 to form a plurality of chip storage unit cavities 50, so that the rock chips can be respectively stored; all be provided with the feed inlet on every stores up bits unit cavity 50's inside, when carrying rock debris and mud liquid through storing up bits chamber 5 through helical blade 21, rock debris and mud liquid can enter into and store up bits unit cavity 50 from the feed inlet and accomplish and store up the bits. A micro-flow cavity 911 is formed between the outermost end of the isolation plate 91 and the inner wall of the outer sleeve 1, and the micro-flow cavity 911 ensures that rock debris cannot flow through and mud liquid can flow out; only store the detritus in the final guarantee stores up the detritus unit chamber 50, and can store more detritus.
The bottom of the central rotating shaft 2 is connected with a milling and drilling bit 3, a blocking sleeve 10 is arranged on the outer side of the connection between the central rotating shaft 2 and the milling and drilling bit 3, and a second helical blade 101 is arranged on the outer side of the blocking sleeve 10; the blocking sleeve 10 and the second spiral blade 101 are arranged, so that the problem that the milling and drilling bit 3 is damaged due to the fact that rock debris is blocked on the central rotating shaft 2 and is connected with the milling and drilling bit 3 can be avoided; a feeding channel 121 is arranged on the milling and drilling bit 3 and the bearing support seat 12 of the outer sleeve 1, and the feeding channel 121 is communicated with the working end of the milling and drilling bit 3; when the milling drill bit 3 works, mud liquid mixed with rock debris at the bottom of an oil well can enter the device from the liquid inlet channel 121, and meanwhile, the pipe diameter of the liquid inlet channel 121 is smaller than that of the rock debris lifting channel 4, so that the rock debris with large volume can be prevented from entering the rock debris lifting channel 4 to cause blockage, and the operation of the device is influenced.
The working principle of the device is as follows: mud liquid is pressed into the upper joint 7 through the feeding cavity 71, the mud liquid pressure is converted into mechanical energy, the screw motor 6 drives the central rotating shaft 2 and the milling bit 3 at the bottom to rotate, the mud liquid enters the mud channel 22 of the central rotating shaft 2 from the outlet of the screw motor 6, and finally the mud liquid coming out of the central rotating shaft 22 leaves the sand bailing device through the leakage hole 111 and enters an oil well; meanwhile, under the high-speed rotation of the milling drill bit 3, bottom mud and rock debris can be sucked into the device from the bottom of the device, and then the rock debris can be stored in the debris storage cavity 5 under the drive of the helical blade 21, so that the sand bailing process is completed; part of the mud liquid lifted up by the helical blades 21 enters the chip storage unit cavity 50 and finally flows out of the microflow cavity of the chip storage unit cavity 50, and most of the mud liquid flows out of the liquid outlet 19 at the top of the outer sleeve 1.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (5)
1. The utility model provides a shell mills integration bailing device which characterized in that: the rock debris lifting device comprises an outer sleeve (1) and a central rotating shaft (2), wherein the central rotating shaft (2) is sleeved in the outer sleeve (1), a rock debris lifting channel (4) is formed between the inner wall of the outer sleeve (1) and the central rotating shaft (2), and a spiral blade (21) is arranged on the outer surface of the central rotating shaft (2); the inner side of the outer sleeve (1) is provided with a scrap storage cavity (5); the bottom rock debris is transported into the debris storage chamber (5) through the rock debris lifting channel (4) by the helical blade (21).
2. The casing milling integrated bailing device of claim 1, wherein: a screw motor (6) is arranged at the top end of the central rotating shaft (2), a slurry channel (22) is arranged at the middle part in the central rotating shaft (2), and an outlet of the screw motor (6) is communicated with the slurry channel (22); an upper joint (7) is arranged above the screw motor (6), a feeding cavity (71) is arranged in the upper joint (7), and the feeding cavity (71) is communicated with an inlet of the screw motor (6); the upper joint (7) is connected with the outer sleeve (1) through a connecting cylinder (8), and the lower end of the connecting cylinder (8) is connected with the upper end of the outer sleeve (1) in a double-stage T-shaped opening shape.
3. The casing milling integrated bailing device of claim 2, wherein: the bottom of the central rotating shaft (2) is provided with a slurry hole (23), and the slurry hole (23) is communicated with the slurry channel (22); a slurry outlet pipe (24) is fixedly arranged on the outer side wall of the slurry hole (23) opposite to the central rotating shaft (2); the upper side and the lower side of the slurry outlet pipe (24), which are opposite to the inner wall of the outer sleeve (1), are respectively provided with a material baffle plate (11), and the material baffle plates (11) are obliquely and upwards arranged; a leakage hole (111) is formed in the striker plate (11) at the lower side, and the leakage hole (111) is communicated with the outer side of the outer sleeve (1); the diameter of the leak hole (111) is smaller than the diameter of the rock debris particles.
4. The casing milling integrated bailing device of claim 1, wherein: the flower tube is characterized by further comprising a flower tube (9), wherein the flower tube (9) is arranged between the outer sleeve (1) and the central rotating shaft (2), the upper end and the lower end of the flower tube (9) are respectively connected and arranged on the inner wall of the outer sleeve (1) through fixing blocks (90), and a scrap storage cavity (5) is formed between the flower tube (9) and the inner wall of the outer sleeve (1); a plurality of partition plates (91) are uniformly arranged on the outer wall of the perforated pipe (9) along the length direction of the perforated pipe, and the partition plates (91) partition the chip storage cavity (5) to form a plurality of chip storage unit cavities (50); and a micro-flow cavity (911) is formed between the outermost end of the isolation plate (91) and the inner wall of the outer sleeve (1).
5. The casing milling integrated bailing device of claim 1, wherein: the bottom of the central rotating shaft (2) is connected with a milling and drilling bit (3), a blocking sleeve (10) is arranged on the outer side of the connection between the central rotating shaft (2) and the milling and drilling bit (3), and a second helical blade (101) is arranged on the outer side of the blocking sleeve (10); a feeding channel (121) is arranged on the milling and drilling bit (3) and the bearing support seat (12) of the outer sleeve (1), and the feeding channel (121) is communicated with the working end of the milling and drilling bit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722941.0U CN210768675U (en) | 2019-10-15 | 2019-10-15 | Sleeve milling integrated bailing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722941.0U CN210768675U (en) | 2019-10-15 | 2019-10-15 | Sleeve milling integrated bailing device |
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| Publication Number | Publication Date |
|---|---|
| CN210768675U true CN210768675U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921722941.0U Active CN210768675U (en) | 2019-10-15 | 2019-10-15 | Sleeve milling integrated bailing device |
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| Country | Link |
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| CN (1) | CN210768675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566149A (en) * | 2019-10-15 | 2019-12-13 | 北京三叶西蒙科技有限公司 | Sleeve milling integrated bailing device and using method thereof |
| CN111905906A (en) * | 2020-07-29 | 2020-11-10 | 中国石油化工股份有限公司 | Centrifugal separation and mechanical crushing type coal dust cleaning system and working method thereof |
-
2019
- 2019-10-15 CN CN201921722941.0U patent/CN210768675U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566149A (en) * | 2019-10-15 | 2019-12-13 | 北京三叶西蒙科技有限公司 | Sleeve milling integrated bailing device and using method thereof |
| CN110566149B (en) * | 2019-10-15 | 2024-07-05 | 北京三叶西蒙科技有限公司 | Cover milling integrated sand bailing device and use method thereof |
| CN111905906A (en) * | 2020-07-29 | 2020-11-10 | 中国石油化工股份有限公司 | Centrifugal separation and mechanical crushing type coal dust cleaning system and working method thereof |
| CN111905906B (en) * | 2020-07-29 | 2021-07-06 | 中国石油化工股份有限公司 | Centrifugal separation and mechanical crushing type coal dust cleaning system and working method thereof |
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