CN217632332U

CN217632332U - Drilling tool for crushing and cleaning drilling well debris deposit bed

Info

Publication number: CN217632332U
Application number: CN202220030708.1U
Authority: CN
Inventors: 侯立东; 邢立国; 王德刚; 冯炜
Original assignee: Heli Tech Energy Co ltd
Current assignee: Heli Tech Energy Co ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-10-21
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a to broken abluent drilling tool of probing well detritus deposit bed, including existing drilling rod, the periphery of drilling rod is equipped with scrapes and washs the short circuit, scrape and wash the short circuit including setting up at drilling rod outlying and be located the tubulose outer tube of cylinder, the wing is scraped to the bead that is equipped with a plurality of annular distributions on the outer tube, the bead is scraped the wing and is the thin V type structure in middle thick both sides, the side that the wing was scraped to the bead is equipped with the washing of densely covered setting and scrapes the tooth, scrapes and washs the short circuit and sets up on the drilling rod through detaching mechanism. The utility model discloses install in the periphery of drilling rod and scrape the washing short circuit, played scraping, broken abluent effect at the pivoted in-process of drilling rod, be convenient for cooperate the use with current drilling rod, secondly be convenient for change the washing short circuit that damages.

Description

Drilling tool for crushing and cleaning drilling well debris deposit bed

Technical Field

The utility model relates to a drilling tool technical field specifically is a to broken abluent drilling tool of probing well detritus deposit bed.

Background

The well cleaning technology is a key technology related to well types such as horizontal wells, highly deviated wells, extended reach wells and the like, and in the construction drilling process of the well types, rock debris is easy to form rock debris sedimentary beds at highly deviated well sections and horizontal well sections due to the action of gravity, so that various complex conditions are caused due to unstable well walls, and further, the engineering problems of prolonged drilling period, low drilling speed, increased drilling cost and the like are caused.

At present, two methods of removing the detritus bed on site mainly comprise hydraulic cleaning and mechanical bed breaking. The hydraulic cleaning is mainly to remove the detritus bed by a method of increasing the discharge amount of mud and changing the flow state of drilling fluid; mechanical breaking beds are mainly used for mechanical scraping by using the existing well cleaning tool and disturbing drilling fluid to break the detritus bed. The two modes have respective limitations in the application process, the hydraulic cleaning is limited by factors such as ground pump equipment, material conditions, formation pressure and the like, and the mechanical breaking bed cannot meet the requirements of well washing and rock carrying due to the fact that the axial line of a drilling tool is not coincident with the axial line of a well bore in a long-inclination section and a horizontal section and the drilling tool is frequently stuck to the drilling tool

. We have therefore improved this by providing a drilling tool for fracture cleaning of a sedimentary bed of rock debris during drilling of a borehole.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a to the broken abluent drilling tool of probing well detritus deposit bed, including existing drilling rod, the periphery of drilling rod is equipped with scrapes and washs the short circuit, scrape and wash the short circuit including setting up at drilling rod outlying and be located the tubulose outer tube of cylinder, the wing is scraped to the bead that is equipped with a plurality of annular distributions on the outer tube, the bead is scraped the wing and is the thin V type structure of middle thick both sides, the side that the wing was scraped to the bead is equipped with the washing of densely covered setting and scrapes the tooth, scrapes and washs the short circuit and sets up on the drilling rod through disassembly body.

As a preferred technical scheme of the utility model, disassembly body is including the spacing stick of a pair of parallel arrangement of welding on the drilling rod, be equipped with the spacing recess that supplies spacing stick to pass on the inner wall of outer tube, and the interior tip of spacing recess is the blind end, just spacing stick equals with the length of spacing recess, be equipped with first location screw on the spacing stick, be equipped with the first positioning through-hole with first location screw one-to-one on the outer tube, install positioning bolt between first positioning through-hole and the first location screw.

As a preferred technical scheme of the utility model, the outer tip of first positioning through-hole is equipped with the groove of accomodating that takes in the positioning bolt cap.

As an optimal technical scheme of the utility model, spacing piece and the integrative welding of drilling rod.

As a preferred technical scheme of the utility model, the wing is scraped to the bead is equipped with the constant head tank with one side of outer union coupling, be equipped with the locating piece that inserts in the constant head tank on the outer tube, be equipped with second location screw on the locating piece, the bead is scraped and is equipped with second positioning hole on the wing, it wears to be equipped with positioning bolt to be equipped with between second positioning hole and the second location screw.

As an optimized technical scheme of the utility model, constitute the sunken guiding gutter of V type between two adjacent bead scraping wings.

The utility model has the advantages that:

this kind of drilling tool to broken washing of probing well detritus deposit bed is installed through the periphery at the drilling rod and is scraped and wash the short circuit, and scrapes and wash the short circuit and set up at the drilling rod through detaching mechanism, and wherein spacing stick is on the outer wall of present drilling rod through the welding son, can avoid causing the destruction to current drilling rod, and the structure of adopting the equipment to dismantle is firstly convenient for use with current drilling rod cooperatees, and secondly is convenient for change the washing short circuit that damages. Furthermore the utility model discloses also dismantle the installation through positioning bolt between well bead scraping wing and the outer tube, be convenient for change when one of them bead scraping wing damages, effectively reduced use cost.

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 invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a drilling tool for fracture cleaning of a cuttings bed for drilling a wellbore according to the present invention;

FIG. 2 is a schematic view of a partial structure for crushing and cleaning a debris bed in a drilled hole according to the present invention;

FIG. 3 is a schematic structural view of the disassembly mechanism of the limiting groove for crushing and cleaning the rock debris deposit bed in the drilled hole;

FIG. 4 is a schematic view of a positioning frame for a positioning slot for fracture cleaning of a cuttings bed in a drilled well according to the present invention;

FIG. 5 is a schematic diagram of the structure of the elastic diaphragm of the first positioning screw hole for crushing and cleaning the debris deposit bed of the drilled well of the present invention;

fig. 6 is a schematic structural view of the elastic diaphragm of the positioning block for crushing and cleaning the debris deposit bed of the drilled well.

In the figure: 1. drilling a rod; 2. scraping and cleaning the short circuit; 3. an outer tube; 4. rib scraping wings; 5. cleaning the scraping teeth; 6. a limiting groove; 7. a first positioning screw hole; 8. a first positioning through hole; 9. a storage groove; 10. positioning a groove; 11. positioning blocks; 12. a second positioning screw hole; 13. and a second positioning through hole.

Detailed Description

The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.

The embodiment is as follows: as shown in fig. 1-6, the utility model relates to a to the broken abluent drilling tool of probing well detritus deposit bed, including existing drilling rod 1, the periphery of drilling rod 1 is equipped with scrapes and washs short circuit 2, scrape and wash short circuit 2 including setting up at drilling rod 1 outlying and be located cylinder tubulose outer tube 3, the wing 4 is scraped to the bead that is equipped with a plurality of annular distributions on the outer tube 3, the bead is scraped the V type structure that the wing 4 is middle thick both sides thin, the side that the wing 4 was scraped to the bead is equipped with the washing of densely covered setting and scrapes tooth 5, scrapes and washs short circuit 2 and sets up on drilling rod 1 through disassembly body. Install in the periphery of drilling rod 1 and scrape and wash short circuit 2, and scrape and wash short circuit 2 and set up at drilling rod 1 through detaching mechanism, wherein spacing piece is on the outer wall of drilling rod 1 that has now through the welding son, can avoid causing destruction to current drilling rod 1, adopts the structure of equipment dismantlement firstly to be convenient for use with current drilling rod 1 cooperatees, secondly is convenient for change the washing short circuit that damages.

The disassembly mechanism comprises a pair of parallel limiting strips 14 welded on the drill rod 1, limiting grooves 6 for the limiting strips 14 to penetrate are formed in the inner wall of the outer pipe 3, the inner ends of the limiting grooves 6 are closed ends, the length of the limiting strips 14 is equal to that of the limiting grooves 6, first positioning screw holes 7 are formed in the limiting strips 14, first positioning through holes 8 corresponding to the first positioning screw holes 7 in a one-to-one mode are formed in the outer pipe 3, and positioning bolts are installed between the first positioning through holes 8 and the first positioning screw holes 7, so that the disassembly mechanism has the advantages of being convenient to install and disassemble.

The outer end part of the first positioning through hole 8 is provided with a containing groove 9 for containing a positioning bolt cap. The limiting block 14 is integrally welded with the drill rod 1, damage to the existing drill rod 1 is avoided, and the drill rod has the advantage of being high in connection strength.

One side that wing 4 is scraped to bead is connected with outer tube 3 is equipped with constant head tank 10, be equipped with the locating piece 11 that inserts in constant head tank 10 on the outer tube 3, be equipped with second location screw 12 on the locating piece 11, be equipped with second positioning hole 13 on the wing 4 is scraped to bead, be equipped with between second positioning hole 13 and the second location screw 12 and wear to be equipped with positioning bolt. Furthermore the utility model discloses also dismantle the installation through positioning bolt between well bead scraping wing 4 and the outer tube 3, be convenient for change when one of them bead scraping wing 4 damages, effectively reduced use cost.

And a V-shaped sunken diversion trench is formed between two adjacent rib scraping wings 4. The V-shaped sunken diversion trench rotates along with the drill rod, so that drilling fluid generates violent turbulence to affect fluid in nearby annuluses, sedimentation of rock debris particles in a well section can be effectively prevented, formed rock debris bed particles can be efficiently stirred, and the stirred rock debris particles are captured by the diversion trench, brought into a suspension layer with higher annulus flow velocity and thrown to a high-edge annulus and a longer distance; the hard alloy lug enhances the wear resistance of the device, and is suitable for working conditions of drilling, forward reaming, backward reaming and the like.

The working principle is as follows: install in the periphery of drilling rod 1 and scrape and wash short circuit 2, and scrape and wash short circuit 2 and set up at drilling rod 1 through detaching mechanism, wherein spacing piece is on the outer wall of drilling rod 1 that has now through the welding son, can avoid causing destruction to current drilling rod 1, adopts the structure of equipment dismantlement firstly to be convenient for use with current drilling rod 1 cooperatees, secondly is convenient for change the washing short circuit that damages. Furthermore the utility model discloses also dismantle the installation through positioning bolt between well bead scraping wing 4 and the outer tube 3, be convenient for change when one of them bead scraping wing 4 damages, effectively reduced use cost.

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 in the foregoing embodiments, 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. A drilling tool for fracture cleaning of a cuttings bed for drilling a borehole, comprising an existing drill pipe (1), characterized in that: the periphery of the drill rod (1) is provided with a scraping and cleaning short circuit (2), the scraping and cleaning short circuit (2) comprises an outer pipe (3) which is arranged on the periphery of the drill rod (1) and is positioned in a cylindrical pipe shape, a plurality of rib scraping wings (4) distributed in an annular shape are arranged on the outer pipe (3), the rib scraping wings (4) are of a V-shaped structure with a thick middle part and thin two sides, cleaning scraping teeth (5) are densely distributed on the side surfaces of the rib scraping wings (4), and the scraping and cleaning short circuit (2) is arranged on the drill rod (1) through a dismounting mechanism; the disassembly mechanism comprises a pair of limiting strip blocks (14) which are arranged in parallel and welded on a drill rod (1), limiting grooves (6) for the limiting strip blocks (14) to pass are formed in the inner wall of an outer tube (3), the inner end portions of the limiting grooves (6) are closed ends, the limiting strip blocks (14) are equal to the length of the limiting grooves (6), first positioning screw holes (7) are formed in the limiting strip blocks (14), first positioning through holes (8) corresponding to the first positioning screw holes (7) one to one are formed in the outer tube (3), and positioning bolts are installed between the first positioning through holes (8) and the first positioning screw holes (7).

2. Drilling tool for fracture cleaning of a cutting bed for drilling of a borehole according to claim 1, characterized in that the outer end of the first positioning through hole (8) is provided with a receiving groove (9) for receiving a positioning bolt cap.

3. Drilling tool for fracture cleaning of rock debris settled bed for drilling well according to claim 1, characterized in that the stop block (14) is welded integrally to the drill rod (1).

4. The drilling tool for crushing and cleaning the rock debris deposit bed for drilling the wellbore according to claim 1, wherein a positioning groove (10) is formed in one side, connected with the outer pipe (3), of the rib scraping wing (4), a positioning block (11) inserted into the positioning groove (10) is arranged on the outer pipe (3), a second positioning screw hole (12) is formed in the positioning block (11), a second positioning through hole (13) is formed in the rib scraping wing (4), and a positioning bolt is arranged between the second positioning through hole (13) and the second positioning screw hole (12) in a penetrating mode.

5. Drilling tool for fracture cleaning of rock debris settled bed for drilling of wellbore according to claim 1, characterized in that between two adjacent fin scraping wings (4) a V-shaped concave guiding groove is formed.