CN101680281A - Drilling system with a barrel drilling head driven by a downhole tractor - Google Patents
Drilling system with a barrel drilling head driven by a downhole tractor Download PDFInfo
- Publication number
- CN101680281A CN101680281A CN200880013665A CN200880013665A CN101680281A CN 101680281 A CN101680281 A CN 101680281A CN 200880013665 A CN200880013665 A CN 200880013665A CN 200880013665 A CN200880013665 A CN 200880013665A CN 101680281 A CN101680281 A CN 101680281A
- Authority
- CN
- China
- Prior art keywords
- well system
- drill bit
- wellhole
- sealing device
- stratum
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title abstract description 13
- 238000007789 sealing Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 8
- 238000005755 formation reaction Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Abstract
The present invention relates to a drilling system (1) for drilling out a sample of a formation, a well, or the like downhole, comprising a drilling head (2) having an at least partly hollow cylindrical body (3) with a circumferential rim (4). The circumferential rim (4) has at least one cutting edge (5). Furthermore, the drilling system has a driving unit (6) for rotating the cylindrical body andthe cutting edge for cutting a piece (7) out of the formation, and a driving tool (8) such as a downhole tractor for driving the drilling head forward in the well or formation (10).
Description
Technical field
The present invention relates to a kind of be used to get out subsurface formations, wellhole or the similar well system of the sample of underground structure, comprise drill bit and driver element, this drill bit have the band circumferential edge to the hollow cylindrical body portion of small part, this circumferential edge has at least one cutting edge, longitudinal axis is by the central authorities of cylindrical body portion, described driver element is used to make cylindrical body portion and cutting edge rotation, to downcut the sample piece from the stratum.
Background technology
When well bore in subsurface formations or before continuing drilling well,, can use well system in order to take out the sample on stratum.
The known well system that is used to take out sample is made of a long pipeline, thereby this system extends to the down-hole target that will extract sample from ground.Before the drill-well operation of rig, described system is installed on another pipe fitting by a pipe fitting is mounted to.The expanded range of the pipe fitting after the assembling makes installation process very complicated, and this process is very time taking.
But long pipeline can produce required the pressure of the drill of down hole drill (WOB) by action of gravity.This system that produces the pressure of the drill by gravity is not very useful when drilling well flatly for example is used to take out sample, and this is because significantly reduction of gravity (effect) when pipe fitting flatly extends.
Another kind of known well system uses the pipe of reeling, and promptly is wrapped in pipe fitting length, continuous length on the reel.This pipe fitting is straight by exhibition before being pushed into well, and can be twined again so that this pipe fitting is wound up on transportation and the holder once more.Although the time than aforementioned system cost significantly reduces, still need will be used to for a long time the to reel equipment of pipe bit well is transported to the scene.In addition, coiling pipe bit well still uses gravity to produce WOB, thereby can not solve the problem of horizontal drilling.
Therefore need a kind of well system that when horizontal drilling, also can take out sample.
In addition, blowout takes place when preventing down hole drill, the liquid in the wellhole mixes with some chemicals, with formation down-hole differential pressure.But because described differential pressure, said system is blocked sometimes differentially.
Therefore, also need a kind ofly can reduce or even eliminate the system of the risk that downhole system blocked differentially.
Summary of the invention
One aspect of the present invention is the shortcoming that overcomes above-mentioned well system at least in part, and provides a kind of sample that can take out the stratum and not jammed improved well system.
Obtain by hereinafter describing described aspect and the advantage of showing by a kind of well system that is used for getting out the sample of down-hole formation, wellhole etc., this well system comprises:
-drill bit comprises:
-have circumferential edge to the hollow cylindrical body portion of small part, longitudinal axis passes the central authorities of cylindrical body portion, circumferential edge has at least one cutting edge,
-be used to make cylindrical body portion and cutting edge rotation with the driver element that downcuts the sample piece from the stratum and
-be used for driving the driven tool that drill bit advances, for example downhole tractor in wellhole or stratum.
Be used to drive the driven tool that drill bit advances and the pressure of the drill is provided owing to have, be used for further research to get out Multilateral Wells or to take out sample so well system can flatly pierce the stratum.
By downhole tractor and drill bit are carried out combination, compare when reeling pipe or binding pipe fitting with use, can obviously carry out drill-well operation quickly, this is because the equipment of use reeling pipe or linking pipe fitting need spend that the long time is transported to operation site and take a long time at the operation site place and to prepare.Compare with the required equipment of pipe operation that is used to reel, downhole tractor can be simply and is transported to operation site apace, even and do not eliminate the time that also can significantly reduce in operation site.In addition, because enough WOB can be provided, proved that downhole tractor can enough be used for drill-well operation effectively.
In one embodiment, downhole tractor can be connected to cable and provide power by cable.
In addition, well system can comprise that also at least one that be positioned at drill bit top is used to provide the sealing device of the sealing of wellhole, to prevent blowout.
By having sealing device, wellhole in the stratum or hole can be divided into the top relevant with the bottom in wellhole or hole and comprise well system or the most bottom of this well system at least.Can prevent blowout by this method and need not to use the chemicals that produces differential pressure, thus the not danger blocked of this system differentially.
In one embodiment, sealing device is inflatable.
In addition, cylindrical body portion can have the blind end relative with cutting edge.
In another embodiment, circumferential edge can have a plurality of cutting edges.
In addition, circumferentially wall can have at least one slit.
In another embodiment, hollow body can have and reaches 10 meters length.
In addition, well system also can comprise and is used to be used to gas cartridge or the pump that liquid or gas from wellhole expand sealing device.
Description of drawings
Describe the present invention in detail below in conjunction with accompanying drawing, wherein:
Fig. 1 illustrate according to well system of the present invention and
Fig. 2 illustrates another embodiment according to well system of the present invention.
Described accompanying drawing only is schematically and for illustrative purposes to illustrate.
The specific embodiment
Fig. 1 illustrates according to well system 1 of the present invention, comprises a barrel formula drill bit 2, is used to make the driver element 6 of barrel formula drill bit 2 rotations and the driven tool 8 of for example downhole tractor.Driven tool 8 is submerged in wellhole or the subsurface formations 10 well system 1, and this driven tool provides power by ground power set by cable 11.
Drill bit 2 drived units 6 drive with certain speed rotation, by driver element 6 control the pressure of the drill (WOB), make that in drilling process the length travel (speed) towards the cutting edge 5 on for example stratum 10 remains unchanged.
Because the pressure of the drill (WOB) is by driver element 6 rather than only produced by gravity, thus well system 1 also drilling well flatly for example flatly to take out sample 7.
Because drill bit 2 has hollow cylindrical body portion 3, so drill bit 2 can be admitted cut sample 7 and the remainder of sample and system 1 is with up together.In this embodiment, the inboard degree of depth of hollow body 3 is 6 meters, so well system 1 can downcut similar 6 meters sample 7.In another embodiment, hollow body 3 is 10 meters.
As shown in Figure 1, well system 1 also comprise be arranged on cable 11 around the sealing device 9 of bottom that is used to seal wellhole, need not to use chemicals to prevent blowout.
In this embodiment, sealing device 9 is expandable.Expandable sealing device 9 is forms of expandable ring, and this ring can be by the gas inflation in air chamber 12 that is in well system 1 or the gas cartridge 12.In another embodiment, utilize pump 14 and strainer to be used as around the liquid of well system 1 sealing device 9 is expanded, described strainer is used for filter liquide before liquid is pumped to sealing device 9.Preferably, pump 14 and strainer are positioned at the part between connecting portion well system 1 and cable 11 and the downhole tractor 8.
As shown in Figure 2, sealing device 9 also can be positioned downhole tractor 8 around.At this, sealing device 9 expands as many when need not and be positioned around the cable, and sealing device 9 also can be nondistensible, for example rubber ring.Like this, the expansion of sealing device 9 will be faster easier, this be because the volume of sealing device 9 need not be positioned at cable 11 around the time the same big, and air chamber 12, gas cartridge 12 or pump 14 can be positioned the inboard of downhole tractor 8, thereby the quick inflation of sealing device 9 is provided.
In order to provide differential pressure below inflatable device 9, well system 1 comprises pump 14, and this pump 14 can be the suitable pump of any kind.In this embodiment, pump 14 is centrifugals pump of single stage type, but in another embodiment, pump 14 can be centrifugal multistage pump multiple centrifugal pump, water jet pump or piston pump.
Claims (13)
1. one kind is used to get out stratum, wellhole or the similar well system (1) of the sample of underground structure, comprising:
-bucket formula drill bit (2) comprising:
-have circumferential edge (4) to the hollow cylindrical body portion of small part (3), this circumferential edge (4) has at least one cutting edge (5),
-driver element (6), this driver element are used to make the rotation of cylindrical body portion and cutting edge, with downcut from the stratum sample piece (7) and
-be used for driving the driven tool (8) that bucket formula drill bit advances, for example downhole tractor in wellhole or stratum (10).
2. well system according to claim 1 is characterized in that, described downhole tractor is connected to cable and provides power by cable.
3. well system according to claim 1 and 2 is characterized in that, comprises that also at least one that be positioned at drill bit top is used to provide the sealing device (9) of the sealing of wellhole, to prevent blowout.
4. well system according to claim 3 is characterized in that described sealing device is expandable.
5. according to any one the described well system in the aforementioned claim, it is characterized in that described cylindrical body portion has the blind end relative with cutting edge (13).
6. according to any one the described well system in the aforementioned claim, it is characterized in that described circumferential edge has a plurality of cutting edges.
7. according to any one the described well system in the aforementioned claim, it is characterized in that circumferentially wall has at least one slit.
8. according to any one the described well system in the aforementioned claim, it is characterized in that described hollow body has and reaches 10 meters length.
9. according to any one the described well system in the aforementioned claim, it is characterized in that, also comprise being used to be used to from the liquid of wellhole or the gas cartridge (12) or the pump (14) of gas inflation sealing device.
10. one kind is used for driving barrel purposes of the downhole tractor that the formula drill bit advances in wellhole or stratum (10), and wherein this barrel formula drill bit (2) comprising:
-have circumferential edge (4) to the hollow cylindrical body portion of small part (3), this circumferential edge (4) has at least one cutting edge (5),
Wherein, the rotary head of bucket formula is by driver element (6) rotation, to downcut sample piece (7) from the stratum.
11. purposes according to claim 10 is characterized in that, described downhole tractor is connected to cable and provides power by cable.
12. purposes according to claim 11 is characterized in that, at least one sealing device (9) is arranged on the drill bit top and centers on cable or driver element, to seal wellhole and to prevent blowout.
13. purposes according to claim 12 is characterized in that, described sealing device is expandable.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA200700615 | 2007-04-26 | ||
| DKPA200700615 | 2007-04-26 | ||
| PCT/DK2008/000160 WO2008131772A2 (en) | 2007-04-26 | 2008-04-28 | Drilling system with a barrel drilling head driven by a downhole tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101680281A true CN101680281A (en) | 2010-03-24 |
Family
ID=39926151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880013665A Pending CN101680281A (en) | 2007-04-26 | 2008-04-28 | Drilling system with a barrel drilling head driven by a downhole tractor |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20100126777A1 (en) |
| EP (1) | EP2140100A2 (en) |
| CN (1) | CN101680281A (en) |
| AU (1) | AU2008243507A1 (en) |
| BR (1) | BRPI0810856A2 (en) |
| CA (1) | CA2684715A1 (en) |
| MX (1) | MX2009011460A (en) |
| WO (1) | WO2008131772A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175609A (en) * | 2010-12-31 | 2011-09-07 | 聚光科技(杭州)股份有限公司 | Measuring method and device of water content of fuel |
| CN103228863A (en) * | 2010-11-26 | 2013-07-31 | 韦尔泰克有限公司 | Downhole punch component |
| CN105649540A (en) * | 2015-12-28 | 2016-06-08 | 中国石油天然气股份有限公司 | Well drilling tool |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5449539B2 (en) | 2009-05-29 | 2014-03-19 | クォルコム・メムズ・テクノロジーズ・インコーポレーテッド | Lighting device and method of manufacturing lighting device |
| US20110169724A1 (en) * | 2010-01-08 | 2011-07-14 | Qualcomm Mems Technologies, Inc. | Interferometric pixel with patterned mechanical layer |
| US8963159B2 (en) | 2011-04-04 | 2015-02-24 | Qualcomm Mems Technologies, Inc. | Pixel via and methods of forming the same |
| US8736939B2 (en) | 2011-11-04 | 2014-05-27 | Qualcomm Mems Technologies, Inc. | Matching layer thin-films for an electromechanical systems reflective display device |
| EP2847416A4 (en) | 2012-06-14 | 2016-09-21 | Halliburton Energy Services Inc | Well tractor |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1717217A (en) * | 1926-04-30 | 1929-06-11 | John L Izan | Permanent-waving cabinet |
| US1870696A (en) * | 1929-07-16 | 1932-08-09 | Thomas G Taylor | Self cooling, drilling, and coring bit |
| US2503561A (en) * | 1945-11-19 | 1950-04-11 | Longyear E J Co | Core drill |
| US2609182A (en) * | 1946-11-23 | 1952-09-02 | Arutunoff Armais | Apparatus for drilling deep wells |
| US2654572A (en) * | 1949-10-15 | 1953-10-06 | Arutunoff Armais | Drilling apparatus |
| US3509953A (en) * | 1968-05-07 | 1970-05-05 | Becker Drilling Alberta Ltd | Spade bit |
| US4950844A (en) * | 1989-04-06 | 1990-08-21 | Halliburton Logging Services Inc. | Method and apparatus for obtaining a core sample at ambient pressure |
| CA2034444C (en) * | 1991-01-17 | 1995-10-10 | Gregg Peterson | Method and apparatus for the determination of formation fluid flow rates and reservoir deliverability |
| US5301759A (en) * | 1992-03-02 | 1994-04-12 | Ruhle James L | Method and apparatus for core-sampling subsurface rock formations |
| US6868906B1 (en) * | 1994-10-14 | 2005-03-22 | Weatherford/Lamb, Inc. | Closed-loop conveyance systems for well servicing |
| CA2376211C (en) * | 1999-11-05 | 2008-02-26 | Halliburton Energy Services, Inc. | Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| GB0108650D0 (en) * | 2001-04-06 | 2001-05-30 | Corpro Systems Ltd | Improved apparatus and method for coring and/or drilling |
| DE10162636A1 (en) * | 2001-12-20 | 2003-07-03 | Hilti Ag | Ultraschallkernbohrkrone |
| US20060054354A1 (en) * | 2003-02-11 | 2006-03-16 | Jacques Orban | Downhole tool |
| US7156192B2 (en) * | 2003-07-16 | 2007-01-02 | Schlumberger Technology Corp. | Open hole tractor with tracks |
| US7401665B2 (en) * | 2004-09-01 | 2008-07-22 | Schlumberger Technology Corporation | Apparatus and method for drilling a branch borehole from an oil well |
| EP1640556B8 (en) * | 2004-09-20 | 2008-10-15 | Services Petroliers Schlumberger | Dual tractor drilling system |
-
2008
- 2008-04-28 MX MX2009011460A patent/MX2009011460A/en unknown
- 2008-04-28 CN CN200880013665A patent/CN101680281A/en active Pending
- 2008-04-28 EP EP08734517A patent/EP2140100A2/en not_active Withdrawn
- 2008-04-28 CA CA002684715A patent/CA2684715A1/en not_active Abandoned
- 2008-04-28 BR BRPI0810856-0A2A patent/BRPI0810856A2/en not_active IP Right Cessation
- 2008-04-28 WO PCT/DK2008/000160 patent/WO2008131772A2/en active Application Filing
- 2008-04-28 US US12/597,666 patent/US20100126777A1/en not_active Abandoned
- 2008-04-28 AU AU2008243507A patent/AU2008243507A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228863A (en) * | 2010-11-26 | 2013-07-31 | 韦尔泰克有限公司 | Downhole punch component |
| US9976368B2 (en) | 2010-11-26 | 2018-05-22 | Welltec A/S | Downhole punch component |
| CN102175609A (en) * | 2010-12-31 | 2011-09-07 | 聚光科技(杭州)股份有限公司 | Measuring method and device of water content of fuel |
| CN102175609B (en) * | 2010-12-31 | 2013-02-20 | 聚光科技(杭州)股份有限公司 | Measuring method and device of water content of fuel |
| CN105649540A (en) * | 2015-12-28 | 2016-06-08 | 中国石油天然气股份有限公司 | Well drilling tool |
| CN105649540B (en) * | 2015-12-28 | 2018-03-13 | 中国石油天然气股份有限公司 | A kind of drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2140100A2 (en) | 2010-01-06 |
| AU2008243507A1 (en) | 2008-11-06 |
| WO2008131772A3 (en) | 2009-02-05 |
| BRPI0810856A2 (en) | 2014-10-29 |
| MX2009011460A (en) | 2009-11-10 |
| WO2008131772A2 (en) | 2008-11-06 |
| US20100126777A1 (en) | 2010-05-27 |
| CA2684715A1 (en) | 2008-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100324 |