CN106894769B - A kind of fast joint type double-layer drill rod - Google Patents
A kind of fast joint type double-layer drill rod Download PDFInfo
- Publication number
- CN106894769B CN106894769B CN201710126472.5A CN201710126472A CN106894769B CN 106894769 B CN106894769 B CN 106894769B CN 201710126472 A CN201710126472 A CN 201710126472A CN 106894769 B CN106894769 B CN 106894769B
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- CN
- China
- Prior art keywords
- outer tube
- female connector
- clip
- inner tube
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/18—Pipes provided with plural fluid passages
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
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- 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
The present invention relates to a kind of fast joint type double-layer drill rods, it is characterised in that: it includes outer tube female connector, outer tube, outer tube pin end, inner tube, inner tube female connector, clip and screw；Drilling rod is double-layer detachable formula structure, and inner tube can be realized with outer tube and be separated, and inner tube is fixed in outer tube using locating piece；It is plug-in type connection type between two drill pipe joints, outer tube female connector and the outer tube pin end of another drilling rod pass through clamp connection, and clip, which turns an angle, can realize the locking connected between two drill pipe joints；Screw mounting hole is set on clip, the locking of clip rotation is realized by screw；The configuration of the present invention is simple connects quick, high reliablity, convenient for safeguarding, drilling process without using riser system, is a kind of drilling rig for marine oil and gas drilling applications.
Description
Technical field
The present invention relates to a kind of drilling rod, especially a kind of fast joint type bilayer for offshore oil and gas drilling applications is bored
Bar.
Background technique
In marine oil and gas drilling process, need a closed annular space as the round-trip channel of drilling fluid.Positive reason
The closed annular formed under condition using drilling riser guard system connection drilling platforms and subsea wellheads, drilling water-separation pipe and drilling rod is empty
Between be used as drilling fluid backward channel, but water proof pipe size is larger, considerably increases the weight of drilling platforms, and riser system needs
It is lower operations, the operating efficiency such as individually to be installed, be connected.In order to solve this problem, tradition is replaced using double-layer drill rod
Drilling rod carries out drillng operation, and double-layer drill rod automatically forms the round-trip channel of drilling fluid, and drilling operation course is kept away without using marine riser
The a series of problems generated because using marine riser is exempted from.
Summary of the invention
Simple, connection that the technical problem to be solved in the present invention is to provide a kind of structures quickly, high reliablity, it is convenient for safeguarding simultaneously
It can solve the double-layer drill rod of the round-trip problem of drilling fluid in drilling process.
The present invention is achieved by the following technical solutions: a kind of fast joint type double-layer drill rod, it is characterised in that: it is wrapped
Containing inner tube, inner tube female connector, outer tube, outer tube pin end, outer tube female connector and clip；The inner tube is in end face
Circumferentially arranged several installation grooves, the inner tube female connector is in the circumferentially arranged several installation bases in end face, the installation
Boss is cooperated with the installation groove；Several seal grooves are arranged in pin end end side surface in the inner tube, to place
Sealing ring, the axially disposed several locating slots of internal layer pipe outer wall；The outer layer inside pipe wall is circumferentially several with axial setting
Locating piece, the locating piece are cooperated with the inner tube locating slot；If the outer tube female connector inner wall is circumferentially arranged
Dry installation groove, the circumferentially arranged several reversed F-typed grooves of outer tube female connector outer wall, the outer tube female connector outer wall edge
It is circumferential that several screw mounting holes are set；Several seal grooves, to place sealing ring, institute are arranged in outer tube pin end side
The circumferentially arranged several installation bases of outer tube pin end outer wall are stated, the installation base is installed recessed with the outer tube female connector
Slot is cooperated；The circumferentially arranged several positive stop lug boss of clip inner wall, the positive stop lug boss and the outer tube female connector
Reversed F-typed groove cooperation, if the circumferentially arranged through-hole of working in the clip side, the circumferentially arranged several spiral shells in clip side
Mounting hole is followed closely, the quick connection between the double-layer drill rod is realized by the clip.
The outer tube female connector is connected by welding with the outer tube, the outer tube pin end by welding and
The outer tube is connected.
The outer tube female connector screw mounting hole is connected through a screw thread with lock-screw threaded portion, the clip screw
Mounting hole and screw column part are cooperated by smooth contact.
The invention adopts the above technical scheme, which has the following advantages: 1, drilling rod of the invention is double-layer structure, is bored
Well process is without using marine riser, so as to avoid a series of problems generated because using marine riser.2, two brills of the present invention
It is plug-in type connection type between bar is single, clip turns an angle the locking realized and connected between drill pipe joint, realizes
The rapidity of connection procedure also ensures the reliability of connection simultaneously.3, drilling rod of the present invention be detachable device, inner tube with
Outer tube can realize separation, easy access and replacement, reduce the wasting of resources.The configuration of the present invention is simple, connection is quick, reliability
Height, assembly is easy, can be widely used in various marine oil and gas drillng operations.
Detailed description of the invention
Fig. 1 is overall structure sectional view of the invention.
Fig. 2 is inner tube schematic diagram of the invention.
Fig. 3 is inner tube female connector schematic diagram of the invention.
Fig. 4 is outer tube female connector schematic diagram of the invention.
Fig. 5 is outer tube pin end schematic diagram of the invention.
Fig. 6 is clip schematic diagram of the invention.
Fig. 7 is attachment structure schematic diagram of the invention.
In figure, 1. outer tube female connectors, 2. outer tubes, 3. outer tube pin ends, 4. clips, 5. inner tube female connectors, 6.
Inner tube, 7. sealing rings, 8. sealing rings, 9. screws, the reversed F-typed groove of 1-1., 1-2. screw mounting hole, 1-3. rectangular recess, 2-
1. locating piece, 3-1. rectangular boss, 4-1. screw mounting hole, 4-2. circular through hole, 4-3. rectangular boss, 5-1.T type boss, 6-
1. rectangle locating slot, 6-2.T type groove, the straight slot type recess of 6-3..
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the invention mainly comprises outer tube female connector 1, outer tube 2, outer tube pin end 3, clip 4 is interior
Layer pipe female connector 5, inner tube 6.
As shown in Figure 1, outer tube female connector 1 of the present invention is connected with outer tube 2 using welding manner, outer tube pin end 3
It is inserted into clip 4, outer tube pin end 3 is connected with outer tube 2 using welding manner.
As shown in Figure 1 and Figure 2,2 inner wall of outer tube is circumferentially uniformly arranged 9 rectangles altogether and positions at interval of 120 ° with longitudinal direction
Block 2-1,6 outer wall of inner tube is circumferentially at interval of 120 ° of setting rectangle locating slot 6-1,6 locating slot 6-1 length of inner tube and outer layer
2 inner wall of pipe, 2 locating piece 2-1 outer wall maximum distances are equal, and inner tube 6 is inserted into from 2 lower end of outer tube when installation, outer tube 2 with
Inner tube 6 realizes connection and limit by locating piece 2-1 and locating slot 6-1.
As shown in Fig. 2, 6 end face of inner tube is circumferentially at interval of 120 ° of setting T-type groove 6-2 and straight slot type recess 6-3；Such as
Shown in Fig. 3, for 5 end face of inner tube female connector circumferentially at interval of 120 ° of settings, 1 T-type boss 5-1, inner tube 6 and inner tube are female
It is straight that 5 end face T-type boss 5-1 of inner tube female connector by T-type boss 5-1 connection, when installation is inserted into 6 end face of inner tube by connector 5
In slot type recess 6-3, inner tube female connector is rotated 60 °, makes 5 end face T-type boss 5-1 of inner tube female connector and 6 end of inner tube
Face T-type groove 6-2 is matched, and realizes the connection of inner tube 6 and internal layer pipe fitting 5；As shown in figure 4,1 inner wall of outer tube female connector
Circumferentially at interval of 120 ° of settings, 1 rectangular recess 1-3,1 outer wall of outer tube female connector is circumferentially arranged 1 at interval of 120 ° and falls
F type groove 1-1,1 outer wall of outer tube female connector are machined with spiral shell circumferentially at interval of 120 ° of settings, 1 screw mounting hole 1-2
Line；As shown in figure 5,2 rectangular seal slots are arranged in 3 outer wall of outer tube pin end, it to be used for mounting O-shaped rubber seal 8, outer tube
3 outer wall lower end of pin end is circumferentially at interval of 120 ° of settings, 1 rectangular boss 3-1；As shown in fig. 6, clip 4 circumferentially at interval of
120 ° of settings, 1 screw mounting hole 4-1, for clip 4 circumferentially at interval of 120 ° of settings, 1 circular through hole 4-2, clip 4 is round logical
60 ° of hole 4-2 and the interval clip screw mounting hole 4-1,4 inner wall of clip is circumferentially at interval of 120 ° of settings, 2 rectangular boss 4-3；
As shown in fig. 7, inner tube female connector 5 and internal layer tube end pin end are that plug-in type connect, outer tube female connector 1 and
Outer tube pin end 3 is plug-in type connection, 3 outer wall rectangular boss 3-1 of outer tube pin end and 1 inner wall rectangle of outer tube female connector
Groove 1-3 is matched, and outer tube female connector 1 is inserted into along clip 4, and clip 4 is then rotated clockwise 35 °, realizes that outer tube is female
Locking between connector 1 and outer tube pin end 3, screw 9 select interior hexagonal round head screw and 1 outer wall screw of outer tube female connector
Mounting hole 1-2 is connected through a screw thread, and 9 column part of screw is matched with 4 circular through hole 4-2 of clip, realizes the locking of clip 4,
To realize the connection between two basic inventions.
Assemble sequence of the present invention are as follows: inner tube 6 is installed in outer tube 2；Inner tube female connector 5 is installed on inner tube
6；Outer tube female connector 1 is welded in outer tube 2；Clip 4 is installed on outer tube pin end 3；Outer tube pin end 3 is welded
In outer tube 2.
Claims (3)
1. a kind of fast joint type double-layer drill rod, it is characterised in that: it includes inner tube, inner tube female connector, outer tube, outer layer
Pipe pin end, outer tube female connector and clip；
The inner tube is in the circumferentially arranged several installation grooves in end face, if the inner tube female connector is circumferentially arranged in end face
Dry installation base, the installation base are cooperated with the installation groove；If the inner tube is arranged in pin end end side surface
Dry seal ring recess, to place sealing ring, the axially disposed several locating slots of internal layer pipe outer wall；
Circumferentially several locating pieces are arranged with axial in the outer layer inside pipe wall, the maximum distance and institute between 2 locating pieces
The equal length of inner tube locating slot is stated, the locating piece is cooperated with the inner tube locating slot；The outer tube mother connects
The head circumferentially arranged several installation grooves of inner wall, the circumferentially arranged several reversed F-typed grooves of outer tube female connector outer wall are described
The circumferentially arranged several screw mounting holes of outer tube female connector outer wall；Several sealing rings are arranged in outer tube pin end side
Slot, to place sealing ring, the circumferentially arranged several installation bases of outer tube pin end outer wall, the installation base and institute
Outer tube female connector installation groove is stated to be cooperated；
The circumferentially arranged several positive stop lug boss of clip inner wall, the positive stop lug boss and the outer tube female connector are reversed F-typed recessed
Slot cooperation, if the circumferentially arranged through-hole of working in the clip side, the circumferentially arranged several screw installations in clip side
The quick connection between the double-layer drill rod is realized in hole by the clip.
2. a kind of fast joint type double-layer drill rod according to claim 1, which is characterized in that the outer tube female connector passes through
Welding is connected with the outer tube, and the outer tube pin end is connected by welding with the outer tube.
3. a kind of fast joint type double-layer drill rod according to claim 1, which is characterized in that the outer tube female connector screw
Mounting hole is connected through a screw thread with lock-screw threaded portion, and the clip screw mounting hole passes through smooth with screw column part
It is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126472.5A CN106894769B (en) | 2017-03-06 | 2017-03-06 | A kind of fast joint type double-layer drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126472.5A CN106894769B (en) | 2017-03-06 | 2017-03-06 | A kind of fast joint type double-layer drill rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106894769A CN106894769A (en) | 2017-06-27 |
| CN106894769B true CN106894769B (en) | 2019-06-21 |
Family
ID=59185445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710126472.5A Active CN106894769B (en) | 2017-03-06 | 2017-03-06 | A kind of fast joint type double-layer drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106894769B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999577B (en) * | 2018-10-24 | 2024-04-12 | 西南石油大学 | Variable-diameter double-layer pipe connecting device for solid-state fluidization exploitation of hydrate |
| CN110259419B (en) * | 2019-07-18 | 2021-09-28 | 中海石油(中国)有限公司湛江分公司 | Double-layer sieve tube |
| CN110700766A (en) * | 2019-11-21 | 2020-01-17 | 西南石油大学 | Same-diameter double-layer continuous oil pipe connecting device |
| CN111155935B (en) * | 2020-01-21 | 2022-02-15 | 浙江乔兴建设集团有限公司 | Drilling device for liquefying saturated soil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2761810Y (en) * | 2004-09-17 | 2006-03-01 | 辽河石油勘探局 | Biwall drill rod for petroleum well drilling |
| CN203783490U (en) * | 2014-03-12 | 2014-08-20 | 河北石探机械制造有限责任公司 | Large-diameter double-wall drill pipe |
| CN204200101U (en) * | 2014-07-08 | 2015-03-11 | 江苏兴厦建设工程集团有限公司 | A kind of drilling rod adopting taper pipe thread and spline slide sleeve to be connected |
| CN204754797U (en) * | 2015-05-15 | 2015-11-11 | 中国地质科学院勘探技术研究所 | Long -life double -walled drilling rod |
| CN205936422U (en) * | 2016-08-17 | 2017-02-08 | 曲春林 | Double -walled drilling rod |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11649683B2 (en) * | 2012-10-12 | 2023-05-16 | Schlumberger Technology Corporation | Non-threaded tubular connection |
-
2017
- 2017-03-06 CN CN201710126472.5A patent/CN106894769B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2761810Y (en) * | 2004-09-17 | 2006-03-01 | 辽河石油勘探局 | Biwall drill rod for petroleum well drilling |
| CN203783490U (en) * | 2014-03-12 | 2014-08-20 | 河北石探机械制造有限责任公司 | Large-diameter double-wall drill pipe |
| CN204200101U (en) * | 2014-07-08 | 2015-03-11 | 江苏兴厦建设工程集团有限公司 | A kind of drilling rod adopting taper pipe thread and spline slide sleeve to be connected |
| CN204754797U (en) * | 2015-05-15 | 2015-11-11 | 中国地质科学院勘探技术研究所 | Long -life double -walled drilling rod |
| CN205936422U (en) * | 2016-08-17 | 2017-02-08 | 曲春林 | Double -walled drilling rod |
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| Publication number | Publication date |
|---|---|
| CN106894769A (en) | 2017-06-27 |
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