CN110159185B - Hydraulic rotary type reamer while drilling - Google Patents
Hydraulic rotary type reamer while drilling Download PDFInfo
- Publication number
- CN110159185B CN110159185B CN201910424146.1A CN201910424146A CN110159185B CN 110159185 B CN110159185 B CN 110159185B CN 201910424146 A CN201910424146 A CN 201910424146A CN 110159185 B CN110159185 B CN 110159185B
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- Prior art keywords
- turbine
- hollow connecting
- drilling
- connecting shaft
- wall
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- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 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
- E21B4/02—Fluid rotary type drives
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a hydraulic rotary type drilling reamer, wherein a groove is formed in the outer side wall of a drill rod, a hollow connecting shaft is fixed in the groove through a countersunk head screw, and the hollow connecting shaft is communicated with a drilling fluid flow passage in the drill rod; the turbine is sleeved in the middle of the hollow connecting shaft, and PDC composite cutting blades are arranged on the outer wall of the turbine at intervals along the circumference; the outer walls of the hollow connecting shafts positioned at the two ends of the turbine are respectively provided with a sealing bearing; a rotary shaft sealing element is sleeved on the outer wall of the hollow connecting shaft between the two sealing bearings. The drilling fluid is utilized to impact the turbine blades to enable the turbine to rotate, the PDC composite cutting blade embedded outside the turbine is driven to cut the surface of the well wall, the well wall is smooth, and the difficulty of later-stage operation of well drilling is reduced.
Description
Technical Field
The invention relates to the technical field of petroleum drilling equipment, in particular to a hydraulic rotary type reamer while drilling.
Background
In various tasks of oil exploration and development, well drilling plays an important role. With the depletion of shallow oil and gas resources, the drilling industry is gradually marching towards deep oil and gas resources. Drilling deep well hard formations, superhard formations and highly abrasive formations becomes a worldwide and universal problem.
The deep well drilling has hard stratum and compact rock, the hole diameter expansion rate is very small, and the borehole gradually forms a conical borehole; in the drilling process, due to factors such as depth and the like, a drill bit often deviates from a designed track, the side wall of a drilled well is not smooth, uneven and different in depth, and serious influence is caused on a series of drilling later-stage operations such as tripping, casing running and well cementation in the drilling process.
Disclosure of Invention
The invention provides a hydraulic rotary type drilling reamer, which utilizes drilling fluid to impact turbine blades to enable a turbine to rotate, drives PDC composite cutting blades embedded outside the turbine to cut the surface of a well wall, enables the well wall to be smooth and reduces the difficulty of later operation of well drilling.
In order to achieve the purpose, the invention provides a hydraulic rotary type drilling-while-drilling reamer, wherein a groove is formed in the outer side wall of a drill rod, a hollow connecting shaft is fixed in the groove through a countersunk head screw, and the hollow connecting shaft is communicated with a drilling fluid flow passage in the drill rod; the turbine is sleeved in the middle of the hollow connecting shaft, and PDC composite cutting blades are arranged on the outer wall of the turbine at intervals along the circumference; the outer walls of the hollow connecting shafts positioned at the two ends of the turbine are respectively provided with a sealing bearing; a rotary shaft sealing element is sleeved on the outer wall of the hollow connecting shaft between the two sealing bearings.
Further, the hole expanders are symmetrically arranged along the circumference of the section of the drill rod.
Furthermore, 5-17 PDC composite cutting blades are parallel to the axial direction of the turbine.
Furthermore, a sealing gasket is arranged between the hollow connecting shaft and the groove on the side wall of the drill rod.
Furthermore, the rotating shaft sealing element is a rotary rubber sealing ring, and the distance between the rotary rubber sealing ring and the turbine blade is 3-5 mm.
The invention has the beneficial effects that: utilize drilling fluid to strike turbine blade and make the turbine rotate, drive the outside compound cutting piece of the embedded PDC of turbine and cut the wall of a well surface, make the wall of a well smooth, reduce the drilling later stage operation degree of difficulty, simple structure improves drilling efficiency.
Drawings
FIG. 1 is a schematic illustration of an overall configuration of the reamer of the present invention;
FIG. 2 is a cross-sectional view taken along plane A-A of FIG. 1;
in the figure: 1. the device comprises a drill rod, 2 parts of a sealing gasket, 3 parts of a rotating shaft sealing element, 4 parts of a PDC composite cutting blade, 5 parts of a turbine, 6 parts of a countersunk screw, 7 parts of a hollow connecting shaft and 8 parts of a sealing bearing.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1, a hydraulic rotary reamer while drilling is provided, wherein a groove is formed on the side wall of a drill rod 1, a hollow connecting shaft 7 is fixed in the groove through a countersunk head screw 6, and the hollow connecting shaft 7 is communicated with a drilling fluid channel in the drill rod 1 so that drilling fluid passes through the hollow connecting shaft 7; the turbine 5 is sleeved on the hollow connecting shaft 7, PDC composite cutting blades are arranged on the outer wall of the turbine 5 at intervals along the circumference, in the embodiment, 5-17 PDC composite cutting blades 4 are embedded on the outer wall of the turbine 5 through welding, the direction of each PDC composite cutting blade 4 is parallel to the axial direction of the turbine 5, and the drilling fluid impacts the blades of the turbine 5 to rotate, so that the external PDC composite cutting blades 4 are driven to rotate, the surface of a well wall is cut, and the well wall is smooth; the outer walls of the hollow connecting shafts 7 positioned at the two ends of the turbine 5 are respectively provided with a sealing bearing 8; a rotary shaft sealing element 3 is sleeved on the outer wall of the hollow connecting shaft 7 positioned between the two sealing bearings 8, namely, the outer wall of the rotary shaft sealing element 3 is connected with the inner wall of the turbine 5, and the inner wall of the rotary shaft sealing element 3 is connected with the outer wall of the hollow connecting shaft 7; the rotary shaft seals 3 are provided in two numbers at the same time, and are in contact with two seal bearings 8, respectively.
The rotating shaft sealing element 3 is a rotary rubber sealing ring, so that drilling fluid is prevented from leaking; the distance between the rotary rubber sealing ring and the 5 blades of the turbine is 3-5mm, so that the normal work of the 5 blades of the turbine is ensured, and the damage of the rotary rubber sealing ring is reduced.
And a sealing gasket is arranged between the hollow connecting shaft and the groove on the side wall of the drill rod, so that the integral sealing performance is ensured.
The turbine 5 rotates in the same direction as the drill rod 1.
As shown in FIG. 2, the hydraulic rotary type reamer is symmetrically arranged along the circumference of the section of the drill pipe 1, and two hydraulic rotary type reamers are arranged in the example, and four hydraulic rotary type reamers can also be arranged.
The working principle of the invention is as follows:
drilling fluid passes through the runner entering reamer in the drilling rod 1, flows into the turbine 5 of both sides respectively through the runner afterwards, and drilling fluid strikes the blade of turbine 5 and drives outer PDC composite cutting piece 4 rotatory, cuts the wall of a well, makes the wall of a well smooth, reduces the drilling later stage operation degree of difficulty, improves drilling efficiency.
Claims (3)
1. The hydraulic rotary type drilling-while-drilling reamer is characterized in that a groove is formed in the outer side wall of a drill rod (1), a hollow connecting shaft (7) is fixed in the groove through a countersunk head screw (6), and the hollow connecting shaft (7) is communicated with a drilling fluid flow passage in the drill rod (1); the turbine (5) is sleeved in the middle of the hollow connecting shaft (7), and PDC composite cutting blades (4) are arranged on the outer wall of the turbine (5) at intervals along the circumference; the outer walls of the hollow connecting shafts (7) positioned at the two ends of the turbine (5) are respectively provided with a sealing bearing (8); a rotary shaft sealing element (3) is sleeved on the outer wall of the hollow connecting shaft (7) positioned between the two sealing bearings (8);
a sealing gasket (2) is arranged between the hollow connecting shaft (7) and the groove on the side wall of the drill rod (1);
the rotary shaft sealing element (3) is a rotary rubber sealing ring, and the distance between the rotary rubber sealing ring and the turbine blade is 3-5 mm.
2. The hydraulic rotary reamer as recited in claim 1, wherein the reamer is circumferentially symmetrical along a cross-section of the drill pipe (1).
3. The hydraulic rotary reamer while drilling as recited in claim 1, wherein the number of the PDC composite cutting blades (4) is 5-17, and the blades are axially parallel to the turbine (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910424146.1A CN110159185B (en) | 2019-05-21 | 2019-05-21 | Hydraulic rotary type reamer while drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910424146.1A CN110159185B (en) | 2019-05-21 | 2019-05-21 | Hydraulic rotary type reamer while drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159185A CN110159185A (en) | 2019-08-23 |
| CN110159185B true CN110159185B (en) | 2021-02-12 |
Family
ID=67631779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910424146.1A Active CN110159185B (en) | 2019-05-21 | 2019-05-21 | Hydraulic rotary type reamer while drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110159185B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11512541B2 (en) * | 2020-11-30 | 2022-11-29 | Saudi Arabian Oil Company | Hydraulically driven hole cleaning apparatus |
| CN113090186B (en) * | 2021-03-22 | 2023-01-31 | 中煤科工集团西安研究院有限公司 | Coal mine underground bundling type large-diameter directional drilling and expanding integrated tool and method |
| CN115522875B (en) * | 2022-11-04 | 2023-02-28 | 西南石油大学 | Contrarotating turbine drilling tool |
| CN116163656A (en) * | 2022-12-09 | 2023-05-26 | 中国石油天然气集团有限公司 | Micro-reaming while drilling tool, drilling system and application thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1007635B (en) * | 1985-04-01 | 1990-04-18 | 田善达 | Underearth propeller |
| CN201106404Y (en) * | 2007-10-10 | 2008-08-27 | 中国石油天然气集团公司 | Reaming machine special for casing tube welldrilling |
| CN107427919A (en) * | 2015-04-24 | 2017-12-01 | 哈里伯顿能源服务公司 | The mesoscale of metal-base composites is strengthened |
| CN205297337U (en) * | 2015-12-24 | 2016-06-08 | 中国石油天然气股份有限公司 | Cave ware is drawn in reaming for well drilling |
| CN206903588U (en) * | 2017-04-13 | 2018-01-19 | 中国石油集团钻井工程技术研究院 | One kind is applied to wear-resisting rock stratum hydraulic rotary drill-following reamer |
| CN106869799A (en) * | 2017-04-13 | 2017-06-20 | 中国石油集团钻井工程技术研究院 | One kind is applied to wear-resisting rock stratum hydraulic rotary drill-following reamer |
-
2019
- 2019-05-21 CN CN201910424146.1A patent/CN110159185B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110159185A (en) | 2019-08-23 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20221214 Address after: 1009, No. 1, Langrong Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen, Guangdong 518109 Patentee after: Shenzhen Hongtu Technology Service Co.,Ltd. Address before: 710089 No. 48 Renmin West Road, Yanliang District, Xi'an City, Shaanxi Province Patentee before: XI'AN AERONAUTICAL POLYTECHNIC INSTITUTE Effective date of registration: 20221214 Address after: 163000 room 724, innovation building, science and technology entrepreneurship Park (Park), No.14, chuangxinjie, high tech Zone, Daqing City, Heilongjiang Province Patentee after: Daqing Yuao Technology Co.,Ltd. Address before: 1009, No. 1, Langrong Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen, Guangdong 518109 Patentee before: Shenzhen Hongtu Technology Service Co.,Ltd. |
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