阅读说明：本技术 套铣一体化捞砂装置及其捞砂装置的使用方法 (Sleeve milling integrated bailing device and using method thereof ) 是由 常宝平 于 2019-10-15 设计创作，主要内容包括：本发明公开了套铣一体化捞砂装置及其捞砂装置的使用方法：包括有外套筒和中心转轴,所述中心转轴套设在外套筒内,所述外套筒内壁与中心转轴之间形成有岩屑提升通道,所述中心转轴的外表面上设置有螺旋叶片；所述外套筒的内侧设置有储屑腔；本装置通过螺旋叶片将底部岩屑通过岩屑提升通道运输至储屑腔内,螺旋叶片21输送岩屑较其他输送方式对岩屑的运载能力强,运载的岩屑多,从而提高了本装置的捞砂效率,使得油井内底部的岩屑能够及时被清理。(The invention discloses a sleeve milling integrated bailing device and a using method of the bailing device, wherein the using method comprises the following steps: 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.)

1. The integrated bailing device of shell milling, its 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); transporting the bottom rock debris into the debris storage cavity (5) through the rock debris lifting channel (4) by the helical blade (21);

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).

2. The shell 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 shell 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 discharging pipe (24) is opposite to the upper side and the lower side of the inner wall of the outer sleeve (1), and striker plates (11) are respectively arranged on the upper side and the lower side, and the striker 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 shell 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).

5. the use method of the casing milling integrated bailing device is as claimed in any one of claims 1 to 4, and is characterized in that:

The method comprises the following steps that firstly, a turntable motor is arranged at the top of an upper connector (7), an outer sleeve (1) is driven to rotate through the turntable motor, the rotating direction of the outer sleeve (1) is opposite to that of a central rotating shaft (2), bottom rock debris and mud fluid enter a rock debris lifting channel (4) from a feeding channel (121) under the rotating thrust of a milling drill bit (3), the aperture of the feeding channel (121) is smaller than the cavity space of the rock debris lifting channel (4), large-particle rock debris mixed in the mud fluid is filtered through the feeding channel (121), and the large-particle rock debris is crushed by the bottom milling drill bit (3) and then enters the feeding channel (121);

And secondly, under the pushing of the spiral blade (21) on the outer wall of the central rotating shaft (2), the rock debris and slurry mixed liquid move upwards in the rock debris lifting channel (4) along the length direction of the central rotating shaft (2), and finally the rock debris and slurry mixed liquid is transported to the position of the rock debris storage cavity (5) and enters the rock debris storage unit cavity (50) through a feeding hole arranged on the inner wall of the rock debris storage unit cavity (50), and the mud liquid entering the rock debris storage unit cavity (50) can flow downwards from the micro flow cavity (911) until flowing out of the rock debris storage unit cavity (50) from the fixed plug (90) below the perforated pipe (9) to return to the rock debris lifting channel (4), so that more rock debris can be stored in the rock debris storage unit cavity (50).

6. The use method of the casing and milling integrated bailing device according to claim 5 is characterized in that: the outer sleeve (1) is arranged in a clockwise rotating mode, the central rotating shaft (2) is arranged in a counterclockwise rotating mode, and the rotating speed of the outer sleeve (1) is smaller than that of the central rotating shaft (2).

7. the use method of the casing and milling integrated bailing device according to claim 5 is characterized in that: mud liquid is pressed into the upper joint (7) through a feeding cavity (71), the mud liquid pressure is converted into mechanical energy, so that the screw motor (6) drives the central rotating shaft (2) and the milling drill bit (3) at the bottom to rotate, the mud liquid enters a mud channel (22) of the central rotating shaft (2) from an outlet of the screw motor (6), and finally the mud liquid coming out of the central rotating shaft (2) leaves the outer sleeve (1) through the leakage hole (111) and enters an oil well; helical blade (21) transportation detritus and mud mixed liquid are to storing up bits chamber (5) department, and the detritus is stored in storing up bits unit chamber (50), and mud liquid further moves up to liquid outlet (19) of outer sleeve (1) top department under helical blade's (21) drive to outside flowing out the oil well from liquid outlet (19), thereby realized the circulation of the inside mud liquid of oil well.

Technical Field

The invention relates to the technical field of oil well bailing, in particular to a sleeve milling integrated bailing device and a using method of the 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 in the prior art, the invention provides a sleeve milling integrated bailing device and a using method of the bailing device, which can solve the problems.

The technical scheme is as follows: in order to realize the purpose, the sleeve milling integrated bailing device and the using method of the bailing device thereof of the invention are as follows: 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.

The using method of the casing-milling integrated bailing device comprises the steps that firstly, a turntable motor is arranged on the top of an upper connector, an outer sleeve is driven to rotate through the turntable motor, the rotating direction of the outer sleeve is opposite to that of a central rotating shaft, bottom rock debris and mud fluid enter a rock debris lifting channel from a feeding channel under the rotating thrust of a milling drill bit, the aperture of the feeding channel is smaller than the space of a pipe cavity of the rock debris lifting channel, large-particle rock debris mixed in the mud fluid is filtered through the feeding channel, and the large-particle rock debris is crushed by the bottom milling drill bit and then enters the feeding channel; second step, under the promotion of helical blade of detritus and mud mixed liquor on central pivot exterior wall, length direction along central pivot upwards removes in the detritus lifting channel, at last with detritus and mud mixed liquor transportation to store up bits chamber department, and enter into through the feed port that sets up in store up bits unit intracavity wall department and store up bits unit chamber, because the microflow chamber only can make the mud liquid pass through, and the detritus can not pass through, the mud liquid that enters into store up bits unit intracavity can follow microflow chamber downward flow like this, flow up to flow from the fixed end cap in floral tube below and store up in the detritus lifting channel is got back to the detritus unit chamber, thereby make store up more detritus in the bits unit intracavity.

Furthermore, the outer sleeve is arranged in a clockwise rotating mode, the central rotating shaft is arranged in a counterclockwise rotating mode, and the rotating speed of the outer sleeve is smaller than that of the central rotating shaft.

Furthermore, mud liquid is pressed into the upper joint through a feeding cavity of the upper joint, the mud liquid pressure is converted into mechanical energy to enable the screw motor to drive the central rotating shaft and the milling drill bit at the bottom to rotate, the mud liquid enters a mud channel of the central rotating shaft from an outlet of the screw motor, and finally the mud liquid coming out of the central rotating shaft leaves the outer sleeve through the leakage hole to enter the oil well; helical blade transports detritus and mud mixed liquid to storing up bits chamber department, and the detritus is stored and is stored up bits unit intracavity, and mud liquid further moves up to the liquid outlet of outer sleeve top department under helical blade's drive to outside flowing out the oil well from the liquid outlet, thereby realized the circulation of the inside mud liquid of oil well.

Has the advantages that: according to the casing-milling integrated bailing device and the using method of the bailing device, the spiral blades are used for conveying the slurry and the rock debris, the conveying capacity of the rock debris is high, the conveying efficiency is high, and the slurry 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 top schematic 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 showing the structure of the slurry outlet of the bailing device of the present invention;

fig. 6 is a partially enlarged schematic view of fig. 4 of the present invention.

Detailed Description

the present invention will be further described with reference to the accompanying drawings.

the sleeve milling integrated bailing device and the using method of the bailing device as shown in the attached figures 1-6 are as follows: 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 use method of the sleeve milling integrated bailing device comprises the following steps: the first step, be provided with the rotary table motor at the top of top connection 7, drive outer sleeve 1 through the rotary table motor and rotate, and the rotation direction of outer sleeve 1 is opposite with the rotation direction of central pivot 2, outer sleeve 1 is clockwise rotation and sets up, central pivot 2 is anticlockwise rotation and sets up, and the rotational speed of outer sleeve 1 is less than the rotational speed of central pivot 2. Bottom rock debris and mud fluid enter the rock debris lifting channel 4 from the feeding channel 121 under the rotating thrust of the milling and drilling head 3, the aperture of the feeding channel 121 is smaller than the pipe cavity space of the rock debris lifting channel 4, large particle rock debris mixed in the mud fluid is filtered out through the feeding channel 121, and the large particle rock debris is crushed by the bottom milling and drilling head (3) and then enters from the feeding channel 121;

second step, under the promotion of helical blade 21 of rock debris and mud mixed liquid on 2 exterior walls of central pivot, the length direction along central pivot 2 in rock debris lift channel 4 rebound, at last with rock debris and mud mixed liquid transport to storage bits chamber 5 department, and enter into storage bits unit chamber 50 through the feed port that sets up in 50 inner walls of storage bits unit chamber 50, because little flow chamber 911 only can make the mud liquid pass through, and the rock debris can not pass through, the mud liquid that enters into in storage bits unit chamber 50 like this can follow little flow chamber 911 downflow, flow out storage bits unit chamber 50 back to in the rock debris lift channel 4 until from the fixed end cap 90 of floral tube 9 below, thereby make and store more rock debris in the storage bits unit chamber 50.

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 2 leaves the outer sleeve 1 through the leakage hole 211 and enters an oil well; helical blade 21 transports detritus and mud mixed liquid to storing up bits chamber 5 department, and the detritus is stored in storing up bits unit chamber 50, and mud liquid further moves up to the liquid outlet 19 of outer sleeve 1 top department under helical blade 21's drive to flow out of the oil well from liquid outlet 19, thereby realized the circulation of the inside mud liquid of oil well.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.