CN106014280B - Drilling rod suitable for slim-hole extended reach well drilling - Google Patents
Drilling rod suitable for slim-hole extended reach well drilling Download PDFInfo
- Publication number
- CN106014280B CN106014280B CN201610549185.0A CN201610549185A CN106014280B CN 106014280 B CN106014280 B CN 106014280B CN 201610549185 A CN201610549185 A CN 201610549185A CN 106014280 B CN106014280 B CN 106014280B
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- screw thread
- drilling
- oil pipe
- shoulder
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 abstract description 8
- 239000011324 bead Substances 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 3
- 230000006870 function Effects 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 230000009993 protective function Effects 0.000 abstract description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
- E21B17/042—Threaded
- E21B17/0423—Threaded with plural threaded sections, e.g. with two-step threads
-
- 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
-
- 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
-
- 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
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
The present invention relates to a kind of drilling rod suitable for slim-hole extended reach well drilling, drilling rod no longer needs to the process for carrying out extraction drilling rod, playing support, being inserted into oil pipe, simplifies petroleum drilling taking technique, improves and bores oily efficiency, has saved cost；Simultaneously by increasing a secondary shoulder in the engagement place of pin thread small end and female thread big end; secondary shoulder and main shoulder form dual stage shoulder structure; main circular bead surface and thread segment generate certain interference fit; and secondary shoulder then just has in certain auxiliary and anchors bit function; to guarantee the accurate realization of main circular bead surface and thread segment interference fit; furthermore; secondary shoulder can also bear fractional load in working condition; play certain overload protective function; and the torsional strength that can also improve drilling rod ensure that the safety of drilling rod.
Description
Technical field
The present invention relates to a kind of drilling rods suitable for slim-hole extended reach well drilling, belong to oil drill rocker technical field.
Background technique
In the drilling process of petroleum, natural gas, water source and mineral reserve, require to use drilling rod, drilling rod passes through tool joint
It connects.
Oil field is to develop kind of a new technique in the extension old well service life in recent years, is exactly the middle and lower sections in former well to casing sidetracking
Side drilling well makes the several hundred rice of its well location horizontal shift in oil reservoir, and puts in horizontal oil reservoir, it is newborn to make old well, and obtain height
It produces, while greatling save the cost of drilling well again.
However conventional drilling rod is not too much suitable for the drilling well of this slim-hole big displacement: first is that conventional drilling rod intensity is not
It is high, it is impossible to be used in this drilling well；Second is that the process for being again inserted into oil pipe after being burrowed by drilling rod is cumbersome, in this increasingly complex brill
Operation difficulty is higher in well, higher cost.
Summary of the invention
It is high that the purpose of the present invention is to overcome the above shortcomings and to provide a kind of intensity, and operation simplifies, lower-cost to be suitable for
The drilling rod of slim-hole extended reach well drilling.
The object of the present invention is achieved like this:
A kind of drilling rod suitable for slim-hole extended reach well drilling, it includes drilling rod and oil pipe, and the drilling rod is by intermediate master
Bar and the pin end at both ends, female connector composition, wherein oil pipe is placed on the inside of drilling rod, and wherein the outside of oil pipe interlude is cased with
Multiple spring centralizers, the spring centralizer block the inner wall of mobile jib, and the oil pipe is being provided with block at two close end respectively
Shape centralizer, the bulk centralizer block the inner wall of pin end, female connector, and when two oil drill rockers connect, drilling rod passes through public affairs
Connector and female connector are threadedly coupled cooperation, and oil pipe is clasped by circlip, and the periphery of the pin end of the drilling rod is provided with outer
Screw thread, the inner wall of the female connector of drilling rod are provided with internal screw thread, and the external screw thread of adjacent two drilling rods is engaged with internal screw thread, so that two
Drilling rod connects, and drilling rod ontology opens up step surface in the upper and lower ends of externally threaded upper and lower ends and internal screw thread,
China and foreign countries' threaded lower end and the step of internal screw thread lower end are main shoulder, and the step of external screw thread upper end and internal screw thread upper end is secondary shoulder.
The drilling rod that the present invention is suitable for slim-hole extended reach well drilling has the advantage that
The drilling rod that the present invention is suitable for slim-hole extended reach well drilling no longer needs to carry out extraction drilling rod, plays support, insertion oil pipe
Process, simplify petroleum drilling taking technique, improve and bore oily efficiency, saved cost；Simultaneously by big in pin thread small end and female thread
The engagement place at end increases a secondary shoulder, and secondary shoulder and main shoulder form dual stage shoulder structure, and main circular bead surface and thread segment produce
Raw certain interference fit, and secondary shoulder then just has in certain auxiliary and anchors bit function, thus guarantee main circular bead surface and
The accurate realization of thread segment interference fit plays certain overload in addition, secondary shoulder can also bear fractional load in working condition
Protective effect, and the torsional strength of drilling rod can also be improved, it ensure that the safety of drilling rod.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the drilling rod that the present invention is suitable for slim-hole extended reach well drilling.
Fig. 2 is the structural schematic diagram of oil pipe in Fig. 1.
Fig. 3 is the external screw thread of drilling rod in Fig. 1, the enlarged drawing at internal screw thread.
In figure: drilling rod 1, mobile jib 1.1, pin end 1.2, female connector 1.3, oil pipe 2, spring centralizer circlip 3, blocky righting
Device 4, circlip 5, external screw thread 6, internal screw thread 7, main shoulder 8, secondary shoulder 9.
Specific embodiment
Referring to Fig. 1 to Fig. 3, the present invention relates to a kind of drilling rods suitable for slim-hole extended reach well drilling, including drilling rod 1 and oil
Pipe 2, the drilling rod 1 are made of pin end 1.2, the female connector 1.3 of intermediate mobile jib 1.1 and both ends, and wherein oil pipe 2 is placed on brill
The inside of bar 1, wherein the outside of 2 interlude of oil pipe is cased with multiple spring centralizers 3, and the spring centralizer 3 is used for oil pipe 2
Positioning, and the inner wall of mobile jib 1.1 is blocked, prevent oil pipe 2 from shaking, the oil pipe 2 is being provided with bulk at two close end respectively
Centralizer 4, the bulk centralizer 4 is equally used for positioning in oil pipe 2, and blocks the inner wall of pin end 1.2, female connector 1.3,
Prevent oil pipe 2 from shaking, when two oil drill rockers connect, drilling rod 1 is threadedly coupled cooperation, oil by pin end 1.2 and female connector 1.3
Pipe 2 is clasped by circlip 5.
The periphery of the pin end 1.2 of the drilling rod 1 is provided with external screw thread 6, and the inner wall of the female connector 1.3 of drilling rod 1 is provided with
The external screw thread 6 of internal screw thread 7, adjacent two drilling rods is engaged with internal screw thread 7, so that two drilling rods connect, and drilling rod 1 is outside
The upper and lower ends of screw thread 6 and the upper and lower ends of internal screw thread 7 open up step surface, wherein 6 lower end of external screw thread and internal screw thread 7 lower end
Step is main shoulder 8, and the step of 7 upper end of 6 upper end of external screw thread and internal screw thread is secondary shoulder 9.
The main shoulder 8 forms dual stage shoulder structure with secondary shoulder 9, and main shoulder 8 and thread segment generate certain interference and match
It closes, and secondary shoulder 9 then just has in certain auxiliary and anchors bit function, to guarantee that the interference of main shoulder 8 and thread segment is matched
The accurate realization closed plays certain overload protective function in addition, secondary shoulder 9 can also bear fractional load in working condition, and
And the torsional strength of drilling rod can also be improved, it ensure that the safety of drilling rod.
Claims (1)
1. a kind of drilling rod suitable for slim-hole extended reach well drilling, it is characterised in that: it includes drilling rod (1) and oil pipe (2), described
Drilling rod (1) is made of pin end (1.2), the female connector (1.3) of intermediate mobile jib (1.1) and both ends, and wherein oil pipe (2) is placed on
The inside of drilling rod (1), wherein the outside of oil pipe (2) interlude is cased with multiple spring centralizers (3), the spring centralizer (3)
The inner wall of mobile jib (1.1) is blocked, the oil pipe (2) is being provided with blocky centralizer (4) at two close end respectively, and the bulk is helped
Positive device (4) blocks the inner wall of pin end (1.2), female connector (1.3), and when two oil drill rockers connect, drilling rod (1) passes through pin end
(1.2) and female connector (1.3) is threadedly coupled cooperation, and oil pipe (2) is clasped by circlip (5), the pin end of the drilling rod (1)
(1.2) periphery is provided with external screw thread (6), and the inner wall of the female connector (1.3) of drilling rod (1) is provided with internal screw thread (7), and adjacent two
The external screw thread (6) of drilling rod is engaged with internal screw thread (7), so that two drilling rods connect, and drilling rod (1) is in external screw thread (6)
Upper and lower ends and the upper and lower ends of internal screw thread (7) open up step surface, wherein external screw thread (6) lower end and internal screw thread (7) lower end
Step is main shoulder (8), and the step of external screw thread (6) upper end and internal screw thread (7) upper end is secondary shoulder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610549185.0A CN106014280B (en) | 2016-07-13 | 2016-07-13 | Drilling rod suitable for slim-hole extended reach well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610549185.0A CN106014280B (en) | 2016-07-13 | 2016-07-13 | Drilling rod suitable for slim-hole extended reach well drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106014280A CN106014280A (en) | 2016-10-12 |
| CN106014280B true CN106014280B (en) | 2019-01-29 |
Family
ID=57117890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610549185.0A Active CN106014280B (en) | 2016-07-13 | 2016-07-13 | Drilling rod suitable for slim-hole extended reach well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014280B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266133A (en) * | 2016-12-30 | 2018-07-10 | 中国石油天然气股份有限公司 | Drilling tool manufacturing method and drilling tool |
| CN112901090A (en) * | 2019-11-19 | 2021-06-04 | 扬州埃尔智能设备有限公司 | High-strength low-current-consumption energy-saving connecting buckle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205977124U (en) * | 2016-07-13 | 2017-02-22 | 江阴德玛斯特钻具有限公司 | Drilling rod suitable for big displacement well drilling of slim -hole |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548431A (en) * | 1981-12-17 | 1985-10-22 | Hughes Tool Company - Usa | Tool joint with internal/external make-up shoulders |
| CN201202413Y (en) * | 2008-03-28 | 2009-03-04 | 上海海隆石油管材研究所 | Drill rod joint with good anti-torque performance |
| CN201513136U (en) * | 2009-09-27 | 2010-06-23 | 无锡西姆莱斯石油专用管制造有限公司 | Double-shoulder drill pipe joint |
| CN201705226U (en) * | 2010-06-21 | 2011-01-12 | 中国石油天然气集团公司 | Integral type double-shoulder sulfur resistant drill rod |
| CN103206176A (en) * | 2013-04-19 | 2013-07-17 | 上海工程机械厂有限公司 | Built-in oil pipe drill rod |
| 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 |
-
2016
- 2016-07-13 CN CN201610549185.0A patent/CN106014280B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205977124U (en) * | 2016-07-13 | 2017-02-22 | 江阴德玛斯特钻具有限公司 | Drilling rod suitable for big displacement well drilling of slim -hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106014280A (en) | 2016-10-12 |
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