EP2635760A1 - Dispositif de forage destiné à être utilisé spécialement pendant un forage directionnel pour la récupération d'énergie géothermique - Google Patents
Dispositif de forage destiné à être utilisé spécialement pendant un forage directionnel pour la récupération d'énergie géothermiqueInfo
- Publication number
- EP2635760A1 EP2635760A1 EP10859323.7A EP10859323A EP2635760A1 EP 2635760 A1 EP2635760 A1 EP 2635760A1 EP 10859323 A EP10859323 A EP 10859323A EP 2635760 A1 EP2635760 A1 EP 2635760A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drilling
- machinery
- borehole
- drilling device
- gear
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 43
- 238000011084 recovery Methods 0.000 title description 2
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 abstract description 2
- 239000003381 stabilizer Substances 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000010959 steel Substances 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
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
- E21B17/206—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables with conductors, e.g. electrical, optical
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
-
- 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
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
Definitions
- This invention relates to a drilling device. More particularly, it relates to a drilling device within which conventional, screwed-together drill pipes have been replaced by a continuous drill string of hoses, and with power and communication transmission via cables onto an electric drilling motor disposed down within the borehole, and directly behind the drill bit.
- geothermal heat is recovered today substantially by virtue of drilling with a rotating drill string and drill pipes screwed together section by section.
- a hole length in the order of 3000 m must be drilled down into the Earth's crust.
- the drilling must allow for directional control in order to achieve an optimum positioning of the hole relative to geological formations.
- signals for directional control of the drill string are transmitted by virtue of pressure pulses in the fluid being pumped down at the centre of the drill string.
- Such equipment is very expensive and complicated, simultaneously offering low capacity with respect to signal transmission.
- the object of the invention is to remedy or reduce at least one of the disadvantages of the prior art.
- a drilling device wherein the conventional rotating drill string has been replaced by three or more flexible hoses coiled onto hose drums. This reduces the weight of the drill string to a minimum as compared to the current technique. By so doing, extensive and large hoisting equipment, and also handling of drill pipes, may be avoided. The space requirement and noise from surface equipment are reduced substantially. This provides for significant economic and environmental benefits.
- a hoisting wire connected to a winch is disposed at the centre of the borehole, and in such a manner that a drilling motor and hoses may be hoisted up and lowered down into the borehole. Cables for transmission of electric power and signal transmission are disposed together with the hoisting wire. Weight on the drill bit is provided by virtue of drill collars placed immediately behind the drilling equipment.
- a smaller hoisting tower on the surface is used for assembly of a drilling machine with equipment, and for lowering casings into the borehole when required.
- Fig. 1 shows the drilling device with associated equipment placed on the
- Fig. 2 shows a detail of the feeding head for hoses and hose drums
- Fig. 3 shows an assembly of an electric drilling motor with associated
- FIG. 4 shows a detail of hoses and a hoisting wire with associated cables in the borehole
- Fig. 5 shows the feeding head for hoses
- Fig. 6 shows a section through the feeding head
- Fig. 7 shows a hydraulic pump with a valve for operation of the feeding head
- Fig. 8 shows an electric drilling motor with a gear
- Fig. 9 shows a section through the drilling motor and the gear
- Fig. 10 shows a rolling anchor for preventing rotation of the drilling motor and the drill string.
- reference numeral 1 denotes a derrick structure above a base structure 2.
- a winch 13, a snatch block 14 and a hoisting wire 3 are connected to the derrick structure 1 for allowing the drilling machinery 7 and the hoses 5 for transport of drilling mud, which is pumped down by means of a mud pump 11, to be hoisted up and lowered.
- the return mud flows in the interstice between the hoses 5 and the borehole wall 37 so as to transport out cuttings broken loose by the drill bit 18. Outbound mud is recovered via the connection 17 on the feeding head 16.
- the hoses 5 are coiled onto hose drums 4 and are conveyed into the borehole through the feeding head 16.
- the feeding head 16 consists of two main parts 26, 35.
- the guiding of the hoses 5 takes place in the interstice 27.
- the piston part 26 is arranged in such a way that hydraulic fluid pressure from the pump 29 may, via the valve 28 and the pipes 30, move the piston part 26 along the main axis 15. Thereby, a desired closing function is achieved when subjected to an overpressure that may arise in the borehole when drilling into pressurized gas pockets.
- Drilling machinery 7 and casings 10 are handled by means of a lift truck 9 on a surface ground 12.
- the drilling machinery 7 is assembled from several elements. Lowermost there is a drill bit 18 of a known design. Behind the drill bit there is a stabilizer 19, behind which there is a drilling motor and gear 20 followed by a directional control 21.
- the intermediate sub 22 interconnects the directional control unit 21 and the rolling anchor 23, which prevents rotation of the drilling machinery 7.
- the rolling anchor consists of a number of rollers which are forced against the borehole wall.
- the drilling motor and gear 20 consists of an electric motor 23 connected to a planetary gear 33, which increases the torque and transmits rotation to an output shaft with a threaded connection 31. Power and communication to the electric motor and directional control 21 are transmitted via the hoisting wire with integrated electricity and fibre communication 3.
Landscapes
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/NO2010/000401 WO2012060711A1 (fr) | 2010-11-04 | 2010-11-04 | Dispositif de forage destiné à être utilisé spécialement pendant un forage directionnel pour la récupération d'énergie géothermique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2635760A1 true EP2635760A1 (fr) | 2013-09-11 |
EP2635760A4 EP2635760A4 (fr) | 2017-05-10 |
Family
ID=46024661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10859323.7A Withdrawn EP2635760A4 (fr) | 2010-11-04 | 2010-11-04 | Dispositif de forage destiné à être utilisé spécialement pendant un forage directionnel pour la récupération d'énergie géothermique |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2635760A4 (fr) |
WO (1) | WO2012060711A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102720436A (zh) * | 2012-06-14 | 2012-10-10 | 宝鸡石油机械有限责任公司 | 一种弹弓式底座的无动力起升方法 |
CN104314468A (zh) * | 2014-11-02 | 2015-01-28 | 郑州神利达钻采设备有限公司 | 一种矿井顶板的钻孔装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3500941A (en) * | 1968-12-09 | 1970-03-17 | Gardner Denver Co | Feed mechanism for rock drill hose guide |
DE3914617A1 (de) * | 1989-05-03 | 1990-11-08 | Werner Foppe | Vorrichtungen und verfahren zur gewaehrleistung kontinuierlich ablaufender schmelzbohrprozesse fuer tiefbohrungen |
US5074518A (en) * | 1990-11-02 | 1991-12-24 | Hydratech | Proportional annular B.O.P. controller |
US6296066B1 (en) * | 1997-10-27 | 2001-10-02 | Halliburton Energy Services, Inc. | Well system |
NO306309B1 (no) * | 1997-12-22 | 1999-10-18 | Dolphin As | Anordning ved snubbingrigg |
US7311151B2 (en) * | 2002-08-15 | 2007-12-25 | Smart Drilling And Completion, Inc. | Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons |
US6527055B1 (en) * | 2001-09-28 | 2003-03-04 | Coiled Tubing Solutions, Inc. | Thrust enhancement device for coiled tubing injectors |
US6910375B2 (en) * | 2003-06-03 | 2005-06-28 | Thomas L. Butler | Pressure monitoring technique and applications involving wells |
US7810555B2 (en) * | 2004-12-16 | 2010-10-12 | Schlumberger Technology Corporation | Injector apparatus and method of use |
WO2010005522A1 (fr) * | 2008-06-30 | 2010-01-14 | Water Bochenek | Machine géothermique et de forage de puits d'eau multifonction |
-
2010
- 2010-11-04 WO PCT/NO2010/000401 patent/WO2012060711A1/fr active Application Filing
- 2010-11-04 EP EP10859323.7A patent/EP2635760A4/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2012060711A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012060711A1 (fr) | 2012-05-10 |
EP2635760A4 (fr) | 2017-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20130506 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NORHARD GEO AS |
|
RA4 | Supplementary search report drawn up and despatched (corrected) |
Effective date: 20170411 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: E21B 33/03 20060101ALI20170405BHEP Ipc: E21B 17/20 20060101ALI20170405BHEP Ipc: E21B 7/04 20060101ALI20170405BHEP Ipc: E21B 7/02 20060101AFI20170405BHEP Ipc: E21B 7/06 20060101ALI20170405BHEP Ipc: E21B 19/22 20060101ALI20170405BHEP Ipc: E21B 15/00 20060101ALI20170405BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20171114 |