CN214532789U

CN214532789U - Heavy-calibre salt is sleeve pipe guider in pit

Info

Publication number: CN214532789U
Application number: CN202120750759.7U
Authority: CN
Inventors: 岳盈括
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-10-29
Anticipated expiration: 2031-04-12

Abstract

The utility model provides a heavy-calibre salt is sleeve pipe guider in pit. The heavy-calibre salt is casing guider in pit includes: connecting columns; connect the chucking piece, the top fixed connection who connects the chucking piece is in the bottom of spliced pole, the extension groove has been seted up to the inside of connecting the chucking piece, the top and the equal fixedly connected with in bottom of extension inslot wall extend the piece, two extend two spacing lantern rings of the equal fixedly connected with in the relative both sides of piece. The utility model provides a heavy-calibre salt is sleeve pipe guider in pit passes through the drill bit when rotating, can drive guider and together rotate to make around the extension digging cutter clearance pore wall of direction head bottom, the diameter of extension pore wall, make the support sleeve pipe can not take place frictional contact with the pore wall at male process, the effectual life who improves the support sleeve pipe, it is simple more convenient to make the support sleeve pipe insert simultaneously, has reduced a large amount of repair work for the staff.

Description

Heavy-calibre salt is sleeve pipe guider in pit

Technical Field

The utility model relates to a sleeve pipe field especially relates to a heavy-calibre salt is sleeve pipe guider in pit.

Background

Casing is used as a conventional operation in drilling engineering, and refers to an operation of putting a large-diameter pipe (casing) to a preset depth of an open hole according to design.

During geological survey and mineral exploration, engineering geology and hydrogeology survey, water well, salt well and other engineering hole construction, the stratum penetrated by the drilled hole is different. In order to deal with various complex strata such as loose alluvial stratum, tectonic zone, aquifer and the like, under the conditions, boreholes with different purposes are drilled or constructed, a casing is inevitably arranged, and the functions of wall protection, collapse prevention, water isolation and the like are achieved. In the drilling construction process, it is difficult to guarantee that the drill hole is perpendicular, the pore wall is smooth, and the drill hole of being under construction in complicated stratum often can touch phenomenons such as hole collapse, undergauge, needs the reaming many times, and is time-consuming, hard, and the effect is not obvious moreover, consequently needs to use the sleeve pipe.

When the existing casing is inserted into a drilled hole in the hole wall, the diameter of the drill bit is smaller than the diameter of the casing, so that when the casing is put into the drilled hole, the casing is easy to rub with the hole wall, the outer wall of the casing is abraded, the wall of the casing is broken when the casing is serious, the casing needs to be taken out and constructed again, and a large amount of manpower and material resources are wasted.

Therefore, it is necessary to provide a guiding device for a large-diameter salt casing in a well to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a heavy-calibre salt is sleeve pipe guider in pit has solved the sleeve pipe and has put the easy problem that takes place the friction with the pore wall when putting down.

In order to solve the technical problem, the utility model provides a heavy-calibre salt is casing pipe guider in pit includes: connecting columns;

the top of the connecting clamping block is fixedly connected with the bottom end of the connecting column, an expansion groove is arranged inside the connecting clamping block, the top and the bottom of the inner wall of the expansion groove are both fixedly connected with extension blocks, two limiting lantern rings are both fixedly connected with two opposite sides of the two extension blocks, sleeves are sleeved inside the two limiting lantern rings, the inner parts of the sleeves are all connected with telescopic rods in a sliding way, the outer parts of the telescopic rods are sleeved with springs, one end of the spring is fixedly connected with one end of the sleeve, the other end of the spring is fixedly connected with one end of the annular block at one end of the telescopic rod, the other ends of the two sleeves which are separated from each other are fixedly connected with the clamping block, the expansion groove is a flat cuboid groove, two the other ends of the telescopic rods which are separated from each other are respectively fixedly connected to two opposite sides of the two clamping blocks, and the clamping blocks are flat semicircular blocks.

Preferably, the outside cover of spliced pole is equipped with support sleeve, the transmission hole has been seted up to support sleeve's inside, the diameter in transmission hole is greater than the diameter of connecting the chucking piece.

Preferably, the support sleeve is externally sleeved with a guide pipe, the bottom end of the guide pipe is fixedly connected with a guide head, the outer surface of the guide head is fixedly connected with a plurality of expanding digging cutters, the guide head is conical, the conical inclined surface is used for fixing the expanding digging cutters, and the expanding digging cutters are used for digging and crushing the surface of the hole wall.

Preferably, the guide pipe is sleeved with a guide ring, a guide groove is formed in the outer surface of the guide ring, the diameter of the guide ring is slightly larger than that of the guide pipe, the guide groove is in a spiral arc shape, and the miscellaneous soil at the bottom can be transmitted to the top of the guide device along with the rotation of the connecting column.

Preferably, the top end of the guide pipe is fixedly connected with a blocking ring, two object storage grooves are formed in the outer surface of the blocking ring, the blocking ring is conical, an annular groove is formed in the blocking ring, and the object storage grooves are formed in the outer wall of the blocking ring.

Preferably, the top end of the guide pipe is fixedly connected with a top column, the diameter of the top column is matched with that of the supporting sleeve, and the supporting sleeve can be completely attached to the top column after entering the top column.

Preferably, the outer surface cover of connecting chucking piece bottom spliced pole is equipped with the anticollision backing ring, the anticollision backing ring is rubber or wooden material, and the diameter phase-match of supporting the cover intraductal wall.

Preferably, the bottom end of the connecting column at the bottom of the connecting and clamping block is fixedly connected with a drill bit, and the drill bit is a special-shaped tooth drill bit.

Compared with the prior art, the utility model provides a heavy-calibre salt is sleeve pipe guider in pit has following beneficial effect:

the utility model provides a heavy-calibre salt sleeve pipe guider in pit, stretch tension through the spring, make sleeve and telescopic link extend, thereby make sleeve and telescopic link remove from the chucking piece of both sides mutually, the chucking gets into the inside of draw-in groove, later when the drill bit when rotating the excavation, can drive guider and together rotate, thereby make the extension digging cutter of direction head bottom clear up all around the pore wall, the diameter of extension pore wall, make the support sleeve pipe can not take place frictional contact with the pore wall at male process, the effectual life who improves the support sleeve pipe, make the support sleeve pipe insert more simply convenient simultaneously, a large amount of repair work has been reduced for the staff.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the guiding device for a large-diameter salt casing in a well according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is an overall three-dimensional perspective view of the present invention;

fig. 4 is a three-dimensional perspective view of the drill guide post shown in fig. 1.

Reference numbers in the figures: 1. a transfer aperture; 2. a support sleeve; 3. connecting columns; 4. a drill bit; 5. expanding the digging cutter; 6. a guide head; 7. a guide tube; 8. a guide groove; 9. a guide ring; 10. a storage groove; 11. a top pillar; 12. a clamping block; 13. a telescopic rod; 14. an anti-collision backing ring; 15. a limiting lantern ring; 16. a sleeve; 17. a card slot; 18. a spring; 19. an extension block; 20. an expansion slot; 21. connecting the clamping block; 22. a stop ring.

Detailed Description

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

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a guiding device for a large-caliber salt casing in a well according to the present invention; FIG. 2 is an enlarged view of a portion of FIG. 1 at A; fig. 3 is an overall three-dimensional perspective view of the present invention; fig. 4 is a three-dimensional perspective view of the drill guide post shown in fig. 1. Heavy-calibre salt is sleeve pipe guider in pit includes: a connecting column 3;

the connecting and clamping block 21, the top of the connecting and clamping block 21 is fixedly connected to the bottom end of the connecting column 3, an expansion groove 20 is formed in the connecting and clamping block 21, the top and the bottom of the inner wall of the expansion groove 20 are both fixedly connected with extension blocks 19, two opposite sides of each extension block 19 are both fixedly connected with two limiting lantern rings 15, the two limiting lantern rings 15 are both sleeved with a sleeve 16, the sleeve 16 is both slidably connected with a telescopic rod 13, the outer part of the telescopic rod 13 is sleeved with a spring 18, one end of the spring 18 is fixedly connected to one end of the sleeve 16, the other end of the spring 18 is fixedly connected to one end of an annular block at one end of the telescopic rod 13, the other ends of the two sleeves 16 which are separated from each other are both fixedly connected with the clamping block 12, the expansion groove 20 is a flat cuboid groove, and the other ends of the two telescopic rods 13 which are separated from each other are respectively fixedly connected to two opposite sides of the two clamping blocks 12, the clamping blocks 12 are flat semicircular blocks, the diameter of each clamping block is smaller than the length of the expansion groove 20, and the two clamping blocks 12 are used for limiting the connecting clamping block 21 in the guide head 6.

The outside cover of spliced pole 3 is equipped with support sleeve 2, transmission hole 1 has been seted up to support sleeve 2's inside, the diameter of transmission hole 1 is greater than the diameter of connecting chucking piece 21 for connect chucking piece 21 not with the passing of pore wall contact.

The supporting sleeve 2 is characterized in that a guide pipe 7 is sleeved outside the supporting sleeve 2, a guide head 6 is fixedly connected to the bottom end of the guide pipe 7, a plurality of expanding digging knives 5 are fixedly connected to the outer surface of the guide head 6, the guide head 6 is conical, the expanding digging knives 5 are fixed on a conical inclined surface, and the expanding digging knives 5 are used for digging and crushing the surface of the hole wall, so that the supporting sleeve 2 can have a larger entering hole when entering the hole wall, the friction between the supporting sleeve and the hole wall is reduced, and the service life of the sleeve is effectively prolonged.

The outside cover of stand pipe 7 is equipped with guide ring 9, guide ring 9's surface has been seted up guide groove 8, guide ring 9's diameter slightly is greater than the diameter of stand pipe 7, guide groove 8 is spiral arc, and along with the rotation of spliced pole 3, can transmit the top of guider with the miscellaneous soil of bottom for guider can be smooth take the sleeve pipe to descend, can not blockked up by the miscellaneous soil that the bottom collapsed, the effectual efficiency of putting under the sleeve pipe that has improved.

The top end fixedly connected with barrier ring 22 of stand pipe 7, two deposit grooves 10 have been seted up to barrier ring 22's surface, barrier ring 22 is the toper and inside ring channel of having seted up, deposit groove 10 is seted up on barrier ring 22's outer wall, and is linked together with the inside ring channel of barrier ring 22 for pile up and prevent that miscellaneous soil from falling down once more.

The top end of the guide pipe 7 is fixedly connected with a top column 11, the diameter of the top column 11 is matched with that of the support sleeve 2, and the support sleeve 2 can be completely attached after entering the top column 11 and is used for preventing the top falling miscellaneous soil from entering the guide device.

The surface cover of connecting chucking piece 21 bottom spliced pole is equipped with anticollision backing ring 14, anticollision backing ring 14 is rubber or wooden material, and the diameter phase-match of diameter and the 2 inner walls of support sleeve can make drill bit 4 can not take place collision friction with the pipe wall when getting into the bottom of support sleeve 2, effectual improvement support sleeve 2's life.

The bottom fixedly connected with drill bit 4 of connecting chucking piece 21 bottom spliced pole, drill bit 4 is the dysmorphism tooth drill bit, can effectually drill the salt deposit geology.

The utility model provides a heavy-calibre salt is sleeve pipe guider in pit's theory of operation as follows:

during the use, insert the inside of guider with support sleeve 2, insert the inside of support sleeve 2 with spliced pole 3 and connection chucking piece 21 again, when connection chucking piece 21 descends to the inside of direction head 6, through the tension that stretches of spring 18, make sleeve 16 and telescopic link 13 extend, thereby make sleeve 16 and telescopic link 13 leave the inside of the chucking piece 12 chucking entering draw-in groove 17 of both sides mutually, drill bit 4 rotates under power device's drive simultaneously, and drive the guider rotation in step, make extension digging cutter 5 expand the excavation all around the pore wall, simultaneously, guide ring 9 rotates together, conduct the top of guider through guide groove 8 with the earth miscellaneous soil of pore wall bottom, make support sleeve 2 can steady move down.

through the tension that stretches of spring 18, make sleeve 16 and telescopic link 13 extend, thereby make sleeve 16 and telescopic link 13 remove from the chucking piece 12 of both sides mutually, the chucking gets into the inside of draw-in groove 17, later when drill bit 4 when rotating the excavation, can drive guider together and rotate, thereby make the expansion digging cutter 5 of leading 6 bottoms clear up all around the pore wall, the diameter of extension pore wall, make supporting sleeve 2 can not take place frictional contact with the pore wall at the male process, the effectual life who improves supporting sleeve 2, make simultaneously supporting sleeve 2's the insertion more simple convenient, a large amount of repair work has been reduced for the staff.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A large-caliber salt downhole casing guiding device is characterized by comprising: a connecting column (3);

a connecting clamping block (21), the top of the connecting clamping block (21) is fixedly connected with the bottom end of the connecting column (3), an expansion groove (20) is formed in the connecting and clamping block (21), extension blocks (19) are fixedly connected to the top and the bottom of the inner wall of the expansion groove (20), two limiting lantern rings (15) are fixedly connected to two opposite sides of the two extension blocks (19), sleeves (16) are sleeved in the two limiting lantern rings (15), the telescopic rods (13) are connected inside the sleeves (16) in a sliding manner, springs (18) are sleeved outside the telescopic rods (13), one end fixed connection in the one end of sleeve (16) of spring (18), the other end fixed connection in the one end of telescopic link (13) one end annular piece of spring (18), two the equal fixedly connected with chucking piece (12) of the other end that sleeve (16) kept away from mutually.

2. The guiding device for the large-caliber salt downhole casing according to claim 1, wherein a support casing (2) is sleeved outside the connecting column (3), and a transmission hole (1) is formed inside the support casing (2).

3. The large-caliber salt downhole casing guiding device according to claim 2, wherein a guiding pipe (7) is sleeved outside the supporting casing (2), a guiding head (6) is fixedly connected to the bottom end of the guiding pipe (7), and a plurality of expanding excavating cutters (5) are fixedly connected to the outer surface of the guiding head (6).

4. The large-caliber salt downhole casing guiding device according to claim 3, wherein the guide pipe (7) is externally sleeved with a guide ring (9), and the outer surface of the guide ring (9) is provided with a guide groove (8).

5. The heavy caliber salt downhole casing guiding device according to claim 3, wherein a stop ring (22) is fixedly connected to the top end of the guiding tube (7), and two storage grooves (10) are formed in the outer surface of the stop ring (22).

6. The large-caliber salt downhole casing guide device according to claim 3, wherein a top column (11) is fixedly connected to the top end of the guide tube (7).

7. The large-caliber salt downhole casing guiding device as claimed in claim 1, wherein the outer surface of the bottom connecting column of the connecting and clamping block (21) is sleeved with a crash cushion ring (14).

8. The large-caliber salt downhole casing guiding device according to claim 1, wherein a drill bit (4) is fixedly connected to the bottom end of the bottom connecting column of the connecting clamping block (21).