CN113482522A - Down-the-hole hammer pipe-following drilling tool and construction method thereof - Google Patents
Down-the-hole hammer pipe-following drilling tool and construction method thereof Download PDFInfo
- Publication number
- CN113482522A CN113482522A CN202110908992.8A CN202110908992A CN113482522A CN 113482522 A CN113482522 A CN 113482522A CN 202110908992 A CN202110908992 A CN 202110908992A CN 113482522 A CN113482522 A CN 113482522A
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- China
- Prior art keywords
- drill
- section
- drill rod
- butt joint
- drill bit
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 238000010276 construction Methods 0.000 title abstract description 19
- 210000001503 joint Anatomy 0.000 claims abstract description 48
- 239000002893 slag Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003032 molecular docking Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A down-the-hole hammer pipe-following drilling tool comprises a drill bit assembly and more than one drill bit assembly; the drill bit assembly comprises a drill bit, a first drill rod section connected with the drill bit and a first casing pipe section sleeved on the first drill rod section, the drill bit is arranged at the lower end of the first casing pipe section, the lower end of the first drill rod section is fixedly connected with the drill bit, the upper end of the first drill rod section is provided with a butt joint male head, and the first drill rod section is connected with the first casing pipe section through a first connecting piece; the drill rod component comprises a second drill rod section and a second casing pipe section sleeved outside the second drill rod section, the second drill rod section is connected with the second casing pipe section through a second connecting piece, a butt joint female head is arranged at the lower end of the second drill rod section, a butt joint male head is arranged at the upper end of the second drill rod section, and the butt joint male head and the butt joint female head can be connected with each other to transfer torque. The casing pipe can be taken out together with the drill bit and the drill rod, so that the construction difficulty and the construction cost are reduced.
Description
Technical Field
The invention relates to the technical field of engineering pile machines, in particular to a down-the-hole hammer pipe-following drilling tool and a construction method thereof.
Background
In the existing down-the-hole hammer pipe following process, a sleeve and a drill bit are separated independent parts, the sleeve sinks by means of the gravity of the sleeve, and a mechanism for supporting a sleeve pipe shoe is arranged on the drill bit, so that the down-the-hole hammer drill bit for the pipe following process needs to be specially made. The downhole hammer follow drill bit is characterized by comprising a drill bit body and a wear-resistant ring which is abutted against the upper end of a casing pipe shoe, wherein the wear-resistant ring is sleeved on the periphery of the drill bit body; the periphery of the drill bit body is provided with a groove ring, the wear-resistant ring is embedded in the groove ring, and the outer surface of the wear-resistant ring extends out of the groove ring; the wear-resistant ring comprises two semicircular ring bodies embedded in the groove ring, and the two semicircular ring bodies are butted together to form a closed-loop structure; the outer peripheral wall of the drill bit body is provided with a plurality of groove strips, the groove strips extend along the axial direction of the drill bit body, and the groove strips are arranged around the drill bit body at intervals; the butt joint of the two semi-circular ring bodies is aligned with the groove strip on the drill bit body. The drill bit of the pipe-following down-the-hole hammer needs to be specially manufactured, has larger loss, needs to be periodically maintained and replaced, and undoubtedly increases the construction cost; in addition, the sleeve, the drill bit and the drill rod are separated, so that the sleeve and the drill bit need to be taken out separately after construction is finished, and particularly, the sleeve needs to be taken out in a matched mode through a specific mechanism, so that construction cost is increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a down-the-hole hammer pipe-following drilling tool and a construction method thereof, which can reduce the construction cost.
In order to solve the technical problems, the technical scheme of the invention is as follows: a down-the-hole hammer pipe-following drilling tool comprises a drill bit assembly and more than one drill bit assembly; the drill bit assembly comprises a drill bit, a first drill rod section connected with the drill bit and a first casing pipe section sleeved on the first drill rod section, the drill bit is arranged at the lower end of the first casing pipe section, the lower end of the first drill rod section is fixedly connected with the drill bit, a butt joint male head is arranged at the upper end of the first drill rod section, the diameter of the drill bit is larger than that of the first casing pipe section, a gap is formed between the drill bit and the lower end of the first casing pipe section to form a slag discharge port, the first drill rod section is connected with the first casing pipe section through a first connecting piece, a gap is formed between the first drill rod section and the first casing pipe section to form a first slag discharge channel, and the slag discharge port is communicated with the first slag discharge channel; the drill rod component comprises a second drill rod section and a second sleeve section sleeved outside the second drill rod section, the second drill rod section is connected with the second sleeve section through a second connecting piece, a gap is formed between the second drill rod section and the second sleeve section to form a second slag discharge channel, the lower end of the second drill rod section is provided with a butt joint female head, the upper end of the second drill rod section is provided with a butt joint male head, and the butt joint male head and the butt joint female head can be connected with each other to transfer torque. The principle of the invention is as follows: the drilling tool is divided into a plurality of sections, so that the drilling tool is convenient to manufacture, store and transport; drilling rod, drill bit and sleeve pipe interconnect, sleeve pipe and drilling rod can follow the drill bit and sink and realize following the pipe, and in addition, the sleeve pipe can be taken out with drill bit and drilling rod together, reduces the construction degree of difficulty and construction cost.
As an improvement, the first connecting piece comprises a plurality of first supporting plates which are uniformly distributed between the first drill rod section and the inner wall of the first casing pipe section in a circumferential manner; the second connecting piece comprises a plurality of second supporting plates which are uniformly distributed between the second drill rod section and the inner wall of the second casing pipe section in a circumferential mode.
As an improvement, the first connecting piece further comprises a first connecting rod arranged between the upper end of the first casing pipe section and the butt joint male joint; the second connecting piece also comprises a second connecting rod arranged between the upper end of the second casing pipe section and the butt joint male joint.
As an improvement, the butt joint male head is connected with the butt joint female head through a bolt after butt joint.
As an improvement, the butt joint male head is hexagonal, and the butt joint female head is provided with a hexagonal hole for inserting the butt joint male head.
As an improvement, the inner wall of the joint of the first casing pipe section and the second casing pipe section and the inner wall of the joint of the adjacent second casing pipe sections are provided with lantern rings.
The construction method comprises the following steps:
(1) connecting and assembling the drill bit component and the drill rod component to form a down-the-hole hammer pipe-following drilling tool;
(2) the down-the-hole hammer drill uses a down-the-hole hammer pipe-following drill to carry out drilling pipe-following operation;
(3) after the drilling operation is completed, the drill bit assembly and the drill rod assembly are taken out together.
Compared with the prior art, the invention has the following beneficial effects:
the drilling tool is divided into a plurality of sections, so that the drilling tool is convenient to manufacture, store and transport; the drill rod, the drill bit and the casing are connected with each other, the casing and the drill rod can sink along with the drill bit to realize pipe following, and in addition, the casing can be taken out together with the drill bit and the drill rod, so that the construction difficulty and the construction cost are reduced; the drill bit does not need to be in direct contact with the sleeve, abrasion of the drill bit is reduced, a common drill bit is adopted, and manufacturing cost and maintenance cost of the drill bit are reduced.
Drawings
FIG. 1 is a cross-sectional view of a down-the-hole hammer casing drill in accordance with the present invention.
Figure 2 is a schematic view of a drill bit assembly.
Fig. 3 is a schematic view of a drill rod assembly.
Fig. 4 is an enlarged view of fig. 1 at a.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, a down-the-hole hammer casing drill for a down-the-hole hammer drill includes a drill bit assembly 1 and more than one drill rod assembly 2, in this embodiment, there are two drill rod assemblies 2, the number of drill rod assemblies 2 can be set according to the length of a drill rod or transportation requirements, and the drill bit assembly 1 and the drill rod assemblies 2 are assembled to form a complete drill rod and a complete casing.
As shown in fig. 2, the drill bit assembly 1 comprises a drill bit 11, a first drill rod section 14 connected with the drill bit 11, and a first casing pipe section 12 sleeved on the first drill rod section 14; the lower end of the first drill rod section 14 is fixedly connected with the drill bit 11, the upper end of the first drill rod section 14 is provided with a butt joint male head 3, and the butt joint male head 3 is used for being connected with the drill rod assembly 2 to realize force transmission; the drill bit 11 is arranged at the lower end of the first casing pipe section 12, the diameter of the drill bit 11 is larger than that of the first casing pipe section 12, a gap is formed between the drill bit 11 and the lower end of the first casing pipe section 12 to form a slag discharge port 16, the first drill rod section 14 is connected with the first casing pipe section 12 through a first connecting piece, a gap is formed between the first drill rod section 14 and the first casing pipe section 12 to form a first slag discharge channel, the slag discharge port is communicated with the first slag discharge channel, and dust generated during operation of the drill bit 11 enters the first slag discharge channel through the slag discharge port; the first connecting piece comprises a plurality of first supporting plates 13 which are evenly distributed between the inner walls of the first drill pipe section 14 and the first casing pipe section 12 in a circumferential mode and a first connecting rod 15 which is arranged between the upper end of the first casing pipe section 12 and the butt joint male joint 3, the first supporting plates 13 can limit the gap between the first drill pipe section 14 and the first casing pipe section 12 to enable the drill pipe to be located in the center of the casing pipe, and the first connecting piece connects the first casing pipe section 12 and the first drill pipe section 14 into an integral structure.
As shown in fig. 3, the drill rod assembly 2 comprises a second drill rod section 23 and a second casing section 21 sleeved outside the second drill rod section 23; the second drill pipe section 23 is connected with the second casing pipe section 21 through a second connecting piece, the second connecting piece comprises a plurality of second supporting plates 22 which are uniformly distributed between the second drill pipe section 23 and the inner wall of the second casing pipe section 21 in a circumferential mode, and a second connecting rod 24 which is arranged between the upper end of the second casing pipe section 21 and the butt male joint 3, the second supporting plates 22 can limit the gap between the second drill pipe section 23 and the second casing pipe section 21, so that the drill pipe is located in the center of the casing pipe, and the first casing pipe section 12 and the first drill pipe section 14 are connected into an integral structure through the first connecting piece; a second slag discharge channel is formed in a gap between the second drill rod section 23 and the second sleeve section 21, and after the drill bit assembly 1 is in butt joint with the drill rod assembly 2, the first slag discharge channel is communicated with the second slag discharge channel; the lower extreme of second drilling rod section 23 is equipped with butt joint female joint 4, the upper end of second drilling rod section 23 is equipped with butt joint male joint 3.
As shown in fig. 4, the male docking head 3 is hexagonal, the female docking head 4 has a hexagonal hole for inserting the male docking head 3, and the male docking head 3 and the female docking head 4 can be connected to each other to transmit torque. In order to ensure the reliability of butt joint, the butt joint male head 3 is connected with the butt joint female head 4 through a bolt after butt joint, so that the butt joint male head 3 is prevented from being separated from the butt joint female head 4, a through hole for the bolt to be checked is formed in the sleeve section, and the bolt can be taken and placed from the through hole. The first drill rod section 14 and the second drill rod section 23 are both hollow structures, and after the second butt joint of the first drill rod section 14 and the second drill rod is completed, a gas supply channel is formed inside the drill rods.
As shown in fig. 4, the inner wall of the joint of the first casing section 12 and the second casing section 21 and the inner wall of the joint of the adjacent second casing section 21 are provided with the collars 5, and the collars can shield the joints at the joints of the casing sections, so that leakage of gas from the joints is reduced, and the reliability of the joint is improved.
The invention relates to a construction method of a down-the-hole hammer pipe-following drilling tool, which comprises the following steps:
(1) the drill bit assembly 1 and the drill rod assembly 2 are mutually connected and assembled to form a down-the-hole hammer follow pipe drilling tool, the drill rod assembly 2 at the upper end is connected with a power head, and the power head can drive the down-the-hole hammer follow pipe drilling tool to rotate;
(2) the down-the-hole hammer drill uses a down-the-hole hammer pipe-following drill to carry out drilling pipe-following operation;
(3) after the drilling construction is finished, the drill bit assembly 1 and the drill rod assembly 2 are taken out together by the down-the-hole hammer drill.
The drilling tool is divided into a plurality of sections, so that the drilling tool is convenient to manufacture, store and transport; the drill rod, the drill bit and the casing are connected with each other, the casing and the drill rod can sink along with the drill bit to realize pipe following, and in addition, the casing can be taken out together with the drill bit and the drill rod, so that the construction difficulty and the construction cost are reduced; the drill bit does not need to be in direct contact with the sleeve, abrasion of the drill bit is reduced, a common drill bit is adopted, and manufacturing cost and maintenance cost of the drill bit are reduced.
Claims (7)
1. The utility model provides a down-the-hole hammer is with pipe drilling tool which characterized in that: comprises a drill bit assembly and more than one drill rod assembly; the drill bit assembly comprises a drill bit, a first drill rod section connected with the drill bit and a first casing pipe section sleeved on the first drill rod section, the drill bit is arranged at the lower end of the first casing pipe section, the lower end of the first drill rod section is fixedly connected with the drill bit, a butt joint male head is arranged at the upper end of the first drill rod section, the diameter of the drill bit is larger than that of the first casing pipe section, a gap is formed between the drill bit and the lower end of the first casing pipe section to form a slag discharge port, the first drill rod section is connected with the first casing pipe section through a first connecting piece, a gap is formed between the first drill rod section and the first casing pipe section to form a first slag discharge channel, and the slag discharge port is communicated with the first slag discharge channel; the drill rod component comprises a second drill rod section and a second sleeve section sleeved outside the second drill rod section, the second drill rod section is connected with the second sleeve section through a second connecting piece, a gap is formed between the second drill rod section and the second sleeve section to form a second slag discharge channel, the lower end of the second drill rod section is provided with a butt joint female head, the upper end of the second drill rod section is provided with a butt joint male head, and the butt joint male head and the butt joint female head can be connected with each other to transfer torque.
2. A down-the-hole hammer casing drill as claimed in claim 1, wherein: the first connecting piece comprises a plurality of first supporting plates which are uniformly distributed between the first drill rod section and the inner wall of the first casing pipe section in a circumferential manner; the second connecting piece comprises a plurality of second supporting plates which are uniformly distributed between the second drill rod section and the inner wall of the second casing pipe section in a circumferential mode.
3. A down-the-hole hammer casing drill as claimed in claim 2, wherein: the first connecting piece also comprises a first connecting rod arranged between the upper end of the first casing pipe section and the butt joint male joint; the second connecting piece also comprises a second connecting rod arranged between the upper end of the second casing pipe section and the butt joint male joint.
4. A down-the-hole hammer casing drill as claimed in claim 1, wherein: the butt joint male joint is connected with the butt joint female joint through a bolt after being in butt joint.
5. A down-the-hole hammer casing drill as claimed in claim 1, wherein: the butt joint male head is hexagonal, and the butt joint female head is provided with a hexagonal hole for the butt joint male head to insert.
6. A down-the-hole hammer casing drill as claimed in claim 1, wherein: and lantern rings are arranged on the inner wall of the joint of the first casing pipe section and the second casing pipe section and the inner wall of the joint of the adjacent second casing pipe sections.
7. A method of constructing a down-the-hole hammer casing drill according to claim, comprising the steps of:
(1) connecting and assembling the drill bit component and the drill rod component to form a down-the-hole hammer pipe-following drilling tool;
(2) the down-the-hole hammer drill uses a down-the-hole hammer pipe-following drill to carry out drilling pipe-following operation;
(3) after the drilling operation is completed, the drill bit assembly and the drill rod assembly are taken out together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110908992.8A CN113482522A (en) | 2021-08-09 | 2021-08-09 | Down-the-hole hammer pipe-following drilling tool and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110908992.8A CN113482522A (en) | 2021-08-09 | 2021-08-09 | Down-the-hole hammer pipe-following drilling tool and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113482522A true CN113482522A (en) | 2021-10-08 |
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ID=77945945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110908992.8A Pending CN113482522A (en) | 2021-08-09 | 2021-08-09 | Down-the-hole hammer pipe-following drilling tool and construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN113482522A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436118A (en) * | 1977-07-25 | 1984-03-13 | Smith International, Inc. | Sleeved drill pipe |
| CN202483432U (en) * | 2011-11-04 | 2012-10-10 | 中国石油集团川庆钻探工程有限公司 | Pipe-following drilling system suitable for drilling in gravel stratum |
| CN202627983U (en) * | 2012-06-18 | 2012-12-26 | 濉溪县博文机械制造有限责任公司 | Drill rod for coal mine |
| CN203756063U (en) * | 2014-02-24 | 2014-08-06 | 湖南有色重机工程机械有限公司 | Drill stem device |
| CN104033101A (en) * | 2014-05-22 | 2014-09-10 | 同济大学 | Major-diameter pneumatic downhole hammer with casing pipe drill |
| CN204552627U (en) * | 2015-02-09 | 2015-08-12 | 安徽恒源煤电股份有限公司 | A kind of wet drilling drilling rod |
| CN207063908U (en) * | 2017-01-05 | 2018-03-02 | 深圳市盛业地下工程有限公司 | A kind of followed by pipe drilling apparatus |
| CN111058762A (en) * | 2019-12-26 | 2020-04-24 | 华北有色工程勘察院有限公司 | Device for conveniently drilling in broken rock mass and drilling method thereof |
| CN215595471U (en) * | 2021-08-09 | 2022-01-21 | 清远中科振宇机械有限公司 | Down-the-hole hammer pipe-following drilling tool |
-
2021
- 2021-08-09 CN CN202110908992.8A patent/CN113482522A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436118A (en) * | 1977-07-25 | 1984-03-13 | Smith International, Inc. | Sleeved drill pipe |
| CN202483432U (en) * | 2011-11-04 | 2012-10-10 | 中国石油集团川庆钻探工程有限公司 | Pipe-following drilling system suitable for drilling in gravel stratum |
| CN202627983U (en) * | 2012-06-18 | 2012-12-26 | 濉溪县博文机械制造有限责任公司 | Drill rod for coal mine |
| CN203756063U (en) * | 2014-02-24 | 2014-08-06 | 湖南有色重机工程机械有限公司 | Drill stem device |
| CN104033101A (en) * | 2014-05-22 | 2014-09-10 | 同济大学 | Major-diameter pneumatic downhole hammer with casing pipe drill |
| CN204552627U (en) * | 2015-02-09 | 2015-08-12 | 安徽恒源煤电股份有限公司 | A kind of wet drilling drilling rod |
| CN207063908U (en) * | 2017-01-05 | 2018-03-02 | 深圳市盛业地下工程有限公司 | A kind of followed by pipe drilling apparatus |
| CN111058762A (en) * | 2019-12-26 | 2020-04-24 | 华北有色工程勘察院有限公司 | Device for conveniently drilling in broken rock mass and drilling method thereof |
| CN215595471U (en) * | 2021-08-09 | 2022-01-21 | 清远中科振宇机械有限公司 | Down-the-hole hammer pipe-following drilling tool |
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