CN217760872U

CN217760872U - Top drive drilling machine lower sleeve for grouting construction

Info

Publication number: CN217760872U
Application number: CN202221909651.9U
Authority: CN
Inventors: 阳健; 李志华; 陈俊宇
Original assignee: Hunan Nanfang Drilling Machinery Co ltd
Current assignee: Hunan Nanfang Drilling Machinery Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-11-08
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a slip casting construction is with top drive rig lower casing pipe in drilling construction technical field, including lower casing pipe, uide bushing, the uide bushing slides up under its natural state of reset unit drive for the uide bushing upper end is removed to the lower casing pipe top. Move up fast through the reset unit drive uide bushing, make the hose among the outside cementer penetrate in the uide bushing, lead to spacingly by the uide bushing to the hose, when avoiding grouting, the hose causes the grout to fail because the swing, and cause the mortar phenomenon of splashing, close soon through setting up the screw thread on the adjusting collar, and make round platform section and taper groove inner wall block and relative slip, and then can make round platform section produce elastic shrinkage, make the tight section shrink of expanding and can insert in the well head of drilling, then the antiport adjusting collar again, prop open until round platform section elasticity, the outer fringe of the tight section of expanding that makes can the chucking be installed in the well head of drilling, the lower casing can not produce the drunkenness and lead to the grout position to produce the deviation.

Description

Top drive drilling machine lower sleeve for grouting construction

Technical Field

The utility model relates to a well drilling construction technical field specifically is a slip casting construction is with top drive rig lower casing pipe.

Background

Casing grouting is an important link in drilling construction, and in the casing running process, timely grouting is needed in a casing water hole to ensure liquid column pressure balance in a well hole, so that the method is an effective method for ensuring construction safety and preventing the casing from being squeezed and deformed by a differential pressure clamp and a casing.

The searched Chinese patent No. CN205297404U discloses a grouting device for casing running of a top drive drilling machine, which comprises a top drive, a grouting joint and a hose, wherein the top drive is provided with a liquid inlet, the liquid inlet is an inlet of a liquid channel in the top drive, and the liquid inlet is connected with a hose. The grouting joint is connected to the lower end of the top drive. The hose is connected to the lower end of the grouting joint and communicated with the hose through a liquid channel in the top drive.

When the top drive drilling machine in the prior art is used for grouting, the hose and the pipe orifice of the lower casing are firstly ensured to be in a corresponding state, then mortar is injected into the pipe orifice of the lower casing through the hose and is injected into a drilling well through the lower casing, and due to the fact that the hose and the pipe orifice of the lower casing have a certain longitudinal distance, the phenomenon of splashing can be caused in the process that the mortar is injected into the lower casing through the hose, mortar is wasted, and grouting construction of the mortar is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome prior art's defect, a slip casting construction is with top drive rig running-in pipe is provided, drive the rig in the top among the prior art who mentions for solve the aforesaid and when grout, at first guarantee the mouth of pipe of hose and running-in pipe and keep corresponding state, then pour into the mouth of pipe of running-in pipe by the hose again, and pour into the borehole by the running-in pipe, because the hose has certain longitudinal separation with the mouth of pipe of running-in pipe, make the mortar pour into the in-process of running-in pipe by the hose again, probably produce the phenomenon that splashes down, and then lead to the mortar to produce extravagantly, and influence the technical problem of the slip casting construction of mortar, the utility model provides a following technical scheme:

the utility model provides a: the utility model provides a slip casting construction is with top rig lower casing of driving, is including installing the lower casing on cementer, the lower casing lower extreme stretches into in the drilling, lower casing upper end cover is equipped with the uide bushing, the uide bushing can freely slide on the lower casing, the uide bushing slides up under its natural state of reset unit drive, makes the uide bushing upper end is removed to the lower casing top.

In the top drive drilling machine lower sleeve for grouting construction, the reset unit comprises a floating ring sleeved at the lower end of the guide sleeve, a reset spring is arranged between the floating ring and the grouting device, and the reset spring elastically abuts against the floating ring and drives the floating ring to slide upwards in a natural state.

In the top drive drilling machine lower casing pipe for grouting construction, the short pin is fixedly connected to the outer wall of the upper end of the lower casing pipe, the floating ring is provided with the waist-shaped hole for inserting the short pin, and the short pin can freely slide up and down in the waist-shaped hole.

In the top drive drilling machine lower sleeve for grouting construction, the upper end of the guide sleeve is provided with the guide part, and the outer diameter of the guide part is gradually decreased from top to bottom.

The slip casting construction is with top rig under casing of driving in as above, fixed cover has been cup jointed on the under casing, fixed cover is last to be equipped with the bloated cover of elasticity, the bloated cover of elasticity includes the platform section of rigid coupling on fixed cover, the platform section external diameter is progressively increased towards the direction of keeping away from fixed cover in proper order, the coaxial bloated tight section that is equipped with of one end that fixed cover was kept away from to the platform section, be equipped with the mounting hole that runs through fixed cover in the bloated tight section, the under casing cartridge is in the mounting hole, be equipped with a plurality of bar breachs that link up with the mounting hole on the bloated tight section outer wall, the fixed threaded sleeve that sheathes in is equipped with the adjusting collar, be equipped with the taper groove that matches with platform section appearance on the adjusting collar.

In the top drive drilling machine lower sleeve for grouting construction, the whole elastic expansion sleeve is made of spring steel.

Compared with the prior art, the beneficial effects of the utility model are that: move up fast through the reset unit drive uide bushing, make the hose among the outside cementer can penetrate in the uide bushing, it is spacing to lead to by the uide bushing to the hose, when avoiding the grout, the hose causes the grout failure because the swing, and cause the mortar phenomenon of splashing, close soon through setting up the screw thread on the adjusting collar, and make round platform section and taper groove inner wall block and relative slip, and then can make round platform section produce elastic shrinkage, make the section shrink of bloating tight and can insert in the well head of well drilling, then the contra-rotation adjusting collar again, prop up until round platform section elasticity, the outer fringe of the section of bloating tight of messenger can the chucking install in the well head of well drilling, when guaranteeing the grout with this, the lower casing can not produce the drunkenness and lead to the grout position to produce the deviation.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic view of the assembly structure of the present invention;

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

fig. 3 is a schematic structural view of the middle elastic expansion sleeve of the present invention.

In the figure: 1-drilling, 2-adjusting sleeve, 3-fixing sleeve, 4-reset spring, 5-floating ring, 6-guide sleeve, 7-guide part, 8-grouting device, 9-lower sleeve, 10-waist-shaped hole, 11-expansion section, 12-short pin, 13-strip-shaped notch and 14-mounting hole.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-3, the present embodiment provides a technical solution: the utility model provides a slip casting construction is with top drive rig lower casing, is including installing lower casing 9 on cementer 8, as introducing among the prior art, cementer mainly drives, grout joint and hose including the top, is equipped with the inlet on driving on the top, and this inlet is the entry of liquid channel in driving on the top, and the inlet is connected with the water hose. The grouting joint is connected to the lower end of the top drive. The hose is connected to the lower end of the grouting connector, the hose is communicated with the hose through a liquid channel in the top drive, mortar is injected into the lower sleeve through the hose, before grouting, the hose is required to be ensured to correspond to the lower sleeve, the lower end of the lower sleeve 9 extends into the well 1, the upper end of the lower sleeve 9 is sleeved with the guide sleeve 6, the guide sleeve 6 can slide freely on the lower sleeve 9, the guide sleeve 6 is driven by the reset unit to slide upwards in a natural state, so that the upper end of the guide sleeve 6 moves to the position above the lower sleeve 9, the guide sleeve can be sleeved into the hose, the lower end of the hose cannot swing, the corresponding state of the hose and the lower sleeve is ensured, the mortar can smoothly enter the lower sleeve from the hose during grouting, the concrete reset unit comprises the floating ring 5 sleeved on the lower end of the guide sleeve 6, the reset spring 4 is arranged between the floating ring 5 and the grouting device 8, the reset spring 4 elastically abuts against the floating ring 5 and drives the floating ring 5 to slide upwards in a natural state, the floating ring presses the floating ring downwards to drive the guide sleeve to move downwards, the floating ring to compress the lower sleeve, the floating ring to be corresponding state, the guide sleeve is then the floating ring is sleeved into a quick expansion state, the guide sleeve, and the hose can be quickly stretched through the expansion state, and the guide sleeve.

Further the rigid coupling has short round pin 12 on the upper end outer wall of underground casing 9, is equipped with the waist shape hole 10 that supplies short round pin 12 to insert to close on the floating ring 5, and short round pin 12 freely slides about waist shape hole 10 internal energy, slides and spacing in waist shape hole through the short round pin for the floating ring can not produce the rotation by oneself on the lower casing, can carry on spacingly to the stroke that reciprocates of floating ring in addition.

In addition, the upper end of the guide sleeve 6 is provided with a guide part 7, and the outer diameter of the guide part 7 is gradually decreased from top to bottom, so that the hose can be rapidly inserted into the guide sleeve, and the hose is rapidly limited.

Further, an underground sleeve 9 is sleeved with a fixed sleeve 3, the fixed sleeve 3 is provided with an elastic expansion sleeve, the elastic expansion sleeve comprises a circular table section fixedly connected on the fixed sleeve 3, the outer diameter of the circular table section is sequentially increased towards the direction far away from the fixed sleeve 3, one end of the circular table section far away from the fixed sleeve 3 is coaxially provided with an expansion section 11, the expansion section 11 is provided with a mounting hole 14 penetrating through the fixed sleeve 3, a lower sleeve 9 is inserted in the mounting hole 14, the outer wall of the expansion section 11 is provided with a plurality of strip-shaped notches 13 penetrating through the mounting hole 14, the fixed sleeve 3 is provided with a thread sleeve which is provided with an adjusting sleeve 2, the adjusting sleeve 2 is provided with a conical groove matched with the shape of the circular table section, before the lower sleeve is inserted into a well mouth of a well, the adjusting sleeve is manually rotated, the adjusting sleeve is screwed on the fixed sleeve, and the driving force of the screw thread screwing is used, the adjusting sleeve moves towards the direction of the expansion section, the inner wall of the conical groove in the adjusting sleeve is clamped with the outer wall of the circular truncated cone section, so that the inner wall of the conical groove of the adjusting sleeve generates radial and inner extrusion force on the outer wall of the circular truncated cone section, meanwhile, the circular truncated cone section is provided with a bar-shaped notch in the expansion section, so that the expansion section and the circular truncated cone section generate elastic contraction, so that the expansion section can be smoothly inserted into a well mouth of a drilled well after contracting, a lower casing pipe extends into the drilled well until the expansion section can be inserted into the well mouth of the drilled well, then the adjusting sleeve is rotated reversely, the expansion section generates elastic expansion deformation until the expansion section generates elastic expansion, and then the outer edge of the expansion section is clamped in the well mouth of the drilled well, so as to position the lower casing pipe, and large deviation cannot be generated in the grouting position of the lower casing pipe.

Preferably, the elastic expansion sleeve is integrally made of spring steel, and the spring steel has better elastic deformation capacity, so that the elastic expansion sleeve is not easy to generate plastic deformation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a slip casting construction is with rig lower casing that drives on top, its characterized in that, is including installing lower casing (9) on cementer (8), lower casing (9) lower extreme stretches into in drilling (1), the pot head is equipped with uide bushing (6) on lower casing (9), uide bushing (6) can freely slide on lower casing (9), uide bushing (6) are slided up by its natural state of reset unit drive, make uide bushing (6) upper end removes to lower casing (9) top.

2. The top-drive drilling machine lower sleeve for grouting construction according to claim 1, wherein the reset unit comprises a floating ring (5) sleeved at the lower end of the guide sleeve (6), a reset spring (4) is arranged between the floating ring (5) and the grouting device (8), and the reset spring (4) elastically abuts against the floating ring (5) and drives the floating ring (5) to slide upwards in a natural state.

3. The bottom casing of the top drive drilling machine for grouting construction as claimed in claim 2, wherein the outer wall of the upper end of the bottom casing (9) is fixedly connected with a short pin (12), the floating ring (5) is provided with a waist-shaped hole (10) for the insertion of the short pin (12), and the short pin (12) can freely slide up and down in the waist-shaped hole (10).

4. The bottom casing of the top drive drilling machine for grouting construction as claimed in claim 1, wherein the upper end of the guide sleeve (6) is provided with a guide part (7), and the outer diameters of the guide part (7) are gradually reduced from top to bottom.

5. The bottom casing of the top-drive drilling machine for grouting construction according to claim 1, wherein the bottom casing (9) is sleeved with a fixed sleeve (3), the fixed sleeve (3) is provided with an elastic expansion sleeve, the elastic expansion sleeve comprises a circular table section fixedly connected to the fixed sleeve (3), the outer diameter of the circular table section is sequentially increased in the direction away from the fixed sleeve (3), one end of the circular table section away from the fixed sleeve (3) is coaxially provided with an expansion section (11), the expansion section (11) is provided with a mounting hole (14) penetrating through the fixed sleeve (3), the bottom casing (9) is inserted into the mounting hole (14), the outer wall of the expansion section (11) is provided with a plurality of strip notches (13) communicated with the mounting hole (14), the fixed sleeve (3) is sleeved with an adjusting sleeve (2) in a threaded manner, and the adjusting sleeve (2) is provided with a taper groove matched with the shape of the circular table section.

6. The top drive drill lower casing for grouting construction as claimed in claim 5, wherein the elastic expansion sleeve is integrally made of spring steel material.