WO2012052496A1 - Excavating deposits from an underground formation layer - Google Patents
Excavating deposits from an underground formation layer Download PDFInfo
- Publication number
- WO2012052496A1 WO2012052496A1 PCT/EP2011/068297 EP2011068297W WO2012052496A1 WO 2012052496 A1 WO2012052496 A1 WO 2012052496A1 EP 2011068297 W EP2011068297 W EP 2011068297W WO 2012052496 A1 WO2012052496 A1 WO 2012052496A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chain cutter
- section
- channel assembly
- location
- formation layer
- Prior art date
Links
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 52
- 239000003245 coal Substances 0.000 claims abstract description 10
- 239000011275 tar sand Substances 0.000 claims abstract description 5
- 239000010779 crude oil Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 40
- 238000005520 cutting process Methods 0.000 claims description 35
- 238000005553 drilling Methods 0.000 claims description 8
- 239000004215 Carbon black (E152) Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 238000005065 mining Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000004058 oil shale Substances 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 4
- 239000011707 mineral Substances 0.000 abstract description 4
- 238000005755 formation reaction Methods 0.000 description 35
- 239000011435 rock Substances 0.000 description 12
- 239000012530 fluid Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000003079 shale oil Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
- E21C29/14—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
- E21C29/145—Means for tensioning the haulage chains or cables
-
- 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
- E21B11/00—Other drilling tools
- E21B11/06—Other drilling tools with driven cutting chains or similarly driven tools
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/54—Slitting by unguided cutter cables or cutter chains, or by unguided tools drawn along the working face by cables or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/56—Slitting by cutter cables or cutter chains or by tools drawn along the working face by cables or the like, in each case guided parallel to the face, e.g. by a conveyor or by a guide parallel to a conveyor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/02—Machines which completely free the mineral from the seam solely by slitting
- E21C27/04—Machines which completely free the mineral from the seam solely by slitting by a single chain guided on a frame with or without auxiliary slitting means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
- E21C29/14—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/08—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws
- B28D1/088—Sawing in situ, e.g. stones from rocks, grooves in walls
Definitions
- the invention relates to a method for excavating
- a chain cutter string is pulled through a channel in an underground formation layer, such as a coal seam, and the chain cutter is simultaneously moved such that the cutters scrape material from the wall of the channel.
- substantially horizontal U-shaped trench is digged in a - - formation adjacent to a horizontal mineral deposit seam and a continuous chain saw string is rotated between guide wheels mounted on a pair caterpillar trucks that slowly move along the parallel legs of the U-shaped trench, such that the chain cutter string cuts a substantially horizontal cavity in the mineral deposit seam.
- hydrocarbon production from a subsurface oil reservoir is enhanced by inserting a flexible linear cutting device, such as a segmented diamond wire saw, into a pair of intersecting wellbores, to form a fissure beginning a the intersection of the wellbores and extending along the lower part of the length of the wellbores, which fissure intersects with natural or previously formed fractures to enhance the permeability and productivity of the subsurface oil
- chaincutter assembly is inserted into a V-shaped horizontal tunnel assembly arranged between three tri-angularly spaced vertical wells and oil sand from a formation between these wells is mined by pulling the chaincutter assembly up and down through the V-shaped tunnel assembly until the
- chaincutter assembly forms a straight line between two of the three wells. In case the chaincutter assembly gets stuck in rocks or other blockages in the formation then the only option to retrieve the chaincutter assembly is to break it up and pull the broken pieces out of the wells.
- a disadvantage of the known cutting methods is that there is no provision to control the lateral pressure of the chain cutter string against the formation or prevent it from sticking so there is a risk of damage and breaking of the cutter chain due to an overload.
- a method of excavating deposits from an underground formation layer comprising:
- the first section of the channel assembly extends as a substantially straight line between the first well and the second well;
- the second section of the channel assembly extends from the third well to the branchpoint, which is formed by a midpoint of the first section of the channel assembly, so that the channel assembly substantially has a T-shape; and - the chain cutter string is pulled through the first section while the chain cutter string is pressed against the sidewall of the first section by the chain cutter control cable and is pulled by the chain cutter control cable towards the third well.
- the first section of the channel assembly has a V-shape and has a first leg, which extends from the first well towards the third well and a second leg, which extends from the third well towards the second well and the chain cutter string extends through the first and second legs of the V- shaped first section of the channel assembly;
- the chain cutter control cable is connected to the chain cutter string at the location where the third well
- the chain cutter control cable is gradually slackened while the chain cutter string is pulled through the first section of the channel assembly, thereby - - controlling the pressure between the chain cutter string and the sidewall of the first section.
- the chain cutter string may be pulled sequentially from the first to the second well and from the second to the first well to mine deposits from the underground formation layer .
- the chain cutter string is an endless chain, which carries a series of cutting elements and is moved in a continuous motion through the first section of the channel assembly and the first and second wells to mine deposits from the underground formation layer and the cutting
- elements may be selected from the group of mechanical cutters and/or hydraulic jets.
- the method according to the invention may be used to create at least plane with a high permeability in a viscous crude oil containing formation in order to Enhance Oil
- Fig.l is a schematic three-dimensional view of a chain cutter assembly that is operated in accordance with the method according to the present invention. - -
- Fig.2 is a top view of a chain cutter assembly, which moves in a single direction through a first section of a subsurface channel assembly;
- Fig.3 is a top view of a chain cutter assembly, which makes an oscillating movement to excavate rock from the wall of a first section of a subsurface channel assembly;
- Fig.4 is a schematic vertical sectional view of an assembly of two wells, which define three triangularly spaced locations between which a triangularly shaped cavity is carved using the method according to the invention;
- Fig.5 is a schematic vertical sectional view of a multilateral well assembly, which defines three triangularly spaced locations between which a triangularly shaped cavity is carved using the method according to the invention;
- Fig.6 is a schematic vertical sectional view of another multilateral well assembly, which defines three triangularly spaced locations between which a triangularly shaped cavity is carved using the method according to the invention.
- Fig.7 is a schematic vertical sectional view of a H- shaped multilateral well assembly, which defines four rectangularly spaced locations between which a rectangularly shaped cavity is carved using the method according to the invention .
- Fig.l shows a triangular well assembly comprising first, second and third well 1,2 and 3, which penetrate a
- underground formation layer 4 such as a mineral, coal, tar sand or heavy oil containing seam, at three triangularly spaced locations 5,6 and 7.
- a channel assembly 8,9 and 10 traverses the formation layer 4 and interconnects each of the wells 1,2 and 3 at these locations 5,6 and 7.
- a chain cutter string 11 is inserted via the first and - - second wells 1 and 2 into a first section 8, 9 of the channel assembly that extends between the first and second wells 1 and 2.
- a chain cutter control cable 12 extends from the third well 3 into a second section 10 of the channel assembly and is connected to the chain cutter string 11 at a branchpoint 13 of the first and second sections 8,9 and 10 of the channel assembly.
- the chain cutter string 1 may be moved in a continuous or oscillating mode through the first section 8,9 of the channel assembly while exerting a lateral force to the chain cutter string 11 by the chain cutter control cable 12 such that the chain cutter string 11 is pressed against the wall of the first section 8,9 of the channel assembly and is thereby induced to carve deposits from of the underground formation layer 4.
- Carved out deposits may be flushed from the channel assembly 8,9, 10 by injecting water, steam and/or another fluid into the third well 3 and discharging a slurry
- Fig. 1 shows that during an initial moment of execution of the method the first section 8,9 of the channel assembly extends as a substantially straight line between the first well 1 and the second well 2 .
- the second section 10 of the channel assembly extends from the third well 3 to the branchpoint 13, which is formed by a midpoint of the first section 8,9 of the channel assembly, so that the channel assembly 8,9,10 substantially has a T-shape.
- the chain cutter string 11 is - - pulled through the first section 8,9 while the chain cutter string 11 is pressed against the sidewall of the first section 8,9 by the chain cutter control cable 11 and is pulled by the chain cutter control cable towards the third well as shown by arrow 14.
- the first section of the channel assembly has a V-shape as illustrated by dotted lines 18, 19 and has a first leg 18, which extends from the first well 1 towards the third well 3 and a second leg 19, which extends from the third well 3 towards the second well 2 and the chain cutter string 11 extends through the first and second legs 18, 19 of the V-shaped first section of the channel assembly.
- the chain cutter control cable 12 is connected to the chain cutter string 11 at or near the location 7 where the third well 3 penetrates the formation layer 4, which location 7 then forms the branchpoint 13 of the first and second sections 12, 18, 19 of the channel assembly, whereupon the chain cutter string is pulled in a continuous or oscillating mode through the first section 18,19 to carve out deposits from the underground formation layer 4.
- chain cutter control cable 12 is gradually slackened while the chain cutter string 11 is pulled through the first section of the channel assembly, thereby controlling the pressure between the chain cutter string and the sidewall of the first section 8,9.
- the chain cutter assembly may be pulled up and down by the chain cutter control cable 12 such that subsequently triangularly shaped slices are carved from the formation layer 4, which slices are within the triangle formed by the first and second sections 8,9, 18 and - -
- a fourth well 15 may be drilled and be connected by a third channel section 16 to the existing channel section 19, whereupon the chain cutter string may be inserted into the section 19 and the chain cutter control cable may be inserted via the fourth well 15 into the third channel section 16, whereupon the chain cutter string 11 may be moved in a continuous or oscillating manner through the existing channel section 19 and moved towards the fourth well 15 by the chain cutter control cable 12 until a triangular section of the formation layer 4 between the channel section 19 and lines 20 and 21 is carved from the formation layer.
- a chain cutter control cable 12 that controls the lateral pressure between the chain cutter string 11 and the wall of the channel assembly will optimize the cutting performance of the cutters mounted on the chain cutter string 11 and will reduce the risk of breaking of the chain cutter string 11 and provide a possibility to relieve it when stuck. It will further be understood that water, steam and or other fluid injection hoses may be connected to the chain cutter string 11 and/or chain cutter control cable 12 to flush carved out cuttings from the channel and well assembly, thereby
- fluid injection hoses may be used to inject a filler and/or tailings into the created cavity in order to inhibit subsidence of the overburden.
- Fig.2 depicts a top view of a detail of the cutting mechanism of a continuous chain cutter assembly 50, 51 that is moving in one direction.
- the continuous chain cutter assembly 50,51 traverses a first section 53 of a channel assembly that is located between a region of disturbed rock 61 and an undisturbed rock formation 60.
- the chain cutter assembly 50,51 comprises cutting blades 51 that are mounted on chain sections 50, which chain sections 50 are pivotably interconnected by connector pins 52.
- the first section 53 is connected to a second section 62 of the channel assembly 53,62, at which branchpoint 53a the chain cutter string 50,51 is connected to a control device 54.
- the control device 54 comprises a connection assembly 40 to apply a controlled pulling force to the chain cutter string 50,51.
- the control device 54 controls the pressure of clamp blades 41a, 41b to fixate the position of the control device 54 in the horizontal borehole 62 while cutting, like fixation devices known as " friends' or 'camalots ' in
- the teeth on the clamp blades 41a, 41b penetrate into the undisturbed rock formation 60 when pulling on the chain 50,51.
- the clamp blades 41a, 41b have a wide operating range with respect to width of the second section 62 of the channel assembly they are in.
- the clamp blades 41a, 41b are mounted on a common shaft 41 and connected by strings 43 to a motor assembly 44 that can pull the strings 43 to relieve the clamp blades 41a, 41b from the wall of the horizontal borehole 62. - -
- connection assembly further comprises a spring 45 which is connected by a connecting rod 46 to a shaft 48 which rotatably carries a guide wheel 47 provided with cutter blades 49, which intermesh with the cutting blades 51 of the chain cutter string 50,51 to control the lateral pulling force exerted by the control device 54 on the chain cutter string 50,51.
- the guide wheel 46 thereby accurately guides and presses the cutter blades 51 of the chain cutter string 50, 51 against the undisturbed rock formation 60. It will be understood that the wheel 47 may have more teeth than four and may have a corresponding larger diameter.
- hydraulic jets can be mounted on the control device 54 to facilitate movement in forward and/or backward direction.
- Fig.3 is a top view of a chain cutter assembly 80,81, which makes an oscillating movement to excavate soil from the wall of a first section 75 of a subsurface channel assembly 75,76.
- FIG.3 depicts how a control device 70,74 is connected to a chain cutter string 80,81 which cuts rock and/or
- hydrocarbon containing material in an oscillating manner from an undisturbed rock, shale oil, tar sand, viscous crude, tight gas and/or coal containing formation 77.
- the control device 70,74 is arranged in a second section
- connection bar 70 which is connected by a pin 71 to a connection rod 74, which is slideably arranged within a cylindrical housing 83 in which a spring 84 is arranged and which housing 83 is connected to a chain cutting string control cable 94.
- the control device 70,74 furthermore comprises a pin 71 to connect the connection bar 70 to the connection rod 74 in - - a pivotable manner and optionally a cutting blade 72 which is arranged at the end of the connection bar 70.
- a pin 73 pivotably connects the cutting chain 80 to the connection rod 70.
- the cutting chain 80 is a cable 80 of two parts with eyes at the end 82a and 82b and connected to pin 73.
- four cutting blades 81 are mounted over the complete circumference of the cable.
- the control device 70, 74 shown in Figure 3 may have the same fixation device 41a, 41b and motor assembly 44 as shown in Figure 2.
- oscillating cutter assembly shown in Figure 3 may vary over the length of the chain leaving pillar like supported structures in the formation 61.
- the wells 1,2 and 3 shown in Figure 1 may have a tilted, non-vertical, orientation and that the triangular area to be cut away in the plane defined by the channel assemblies 8-10,53,62,75 and 76 shown in Figures 1-3 may be adapted to foreseen subsidence.
- 10,53,62,75 and 76 shown in Figures 1,2 and 3 may define a dipped, non-horizontal, plane to facilitate flushing of the cutting deposits to the bottom of one of the wells 1,2 or 3 in which a slurry pump may be arrange to remove the cutting deposits to the earth surface.
- the three wells 1,2,3 and channel assembly 8,9,10 may be drilled by known deviated and or river-crossing drilling technologies, wherein the first and second wells 1,2 and the first and second sections 8,9 of the channel assembly are drilled as a single U-shaped well having two entrances at the earth surface and the third well 3 and third section of the channel assembly 10 are drilled as a single J-shaped well, which is drilled towards - - the branchpoint 13 by known navigation and homing-in
- first or second well 1 or 2 may be located above the branchpoint 13 so that the first and second sections of the channel assembly 8-10 have a L-shaped configuration instead of the T-shaped configuration shown in Figure 1.
- This alternative L-shaped configuration may be attractive if the control cable
- Fraccing is widely used in the oil and gas industry to generate vertical fluid conduit planes to improve
- a fracture with a relative large fracture aperture to fill the fracture with a gel, cement or other material to create a baffle for fluid flow of substantial areal dimensions.
- One application is the control of water ingress from an active aquifer, with or without pollutants, another is a sufficient wide fracture for viscous oil production or tight or shale gas production.
- Figure 4 shows a configuration with two wells 400 and 405 which start vertical from the surface 420 and deviate from vertical further downwards.
- the oscillating chain cutter 401 is anchored in the bottom by anchor 403 of well 400 via spring 404.
- the spring can freely rotate in the plane of cutting.
- the chain cutter control device 407 which controls the lateral force of the chain cutter on the rock is
- the chain cutter control device can be similar as the one shown in Fig. 2 of the original patent application.
- the chain cutter control device 407 is pulled upwards by the control cable 406.
- the control cable is guided in bends in the well at locations as 415 by appropriate mechanical means, such as guiding wheels (not drawn) to avoid unnecessary friction and deterioration of well and control cable. Guiding wheel 402 for the chain cutter is mounted in well 400 for similar reasons.
- the chain cutter is along line 410 and connected to the control device at this location. While pulling on the control cable, the
- oscillating chain cutter progresses from dashed dotted line 410 to dashed dotted line 411 to dashed dotted line
- spring 404 is a pneumatic or
- Figure 5 shows a single vertical well 500 with a side track 505.
- Two anchors 503 and 509 fixate two guiding wheel 504 and spring 510 for the oscillating chain cutter 501.
- the chain cutter control device 507 which controls the lateral force of the chain cutter on the rock is connected to control cable 506 and to the chain cutter via a guide wheel 508.
- this wheel can be provided with cutter blades.
- the chain cutter control device can be similar as the one shown in Fig. 2 of the original patent application. Guiding wheels at location
- spring can be replaced by an oscillating electric or pneumatic actuator or a guiding wheel. In the latter case the chain cutter string returns through the side track 505 and well 500 to the surface allowing for a continuous (non-oscillating) movement of the chain cutter .
- FIG. 6 shows a configuration somewhat similar to the one shown in Figure 5 but with two springs 604 and 610.
- the oscillating chain cutter has now two chains 601A and 601B that are connected to these springs via two small guiding wheels at the exit of the anchors. It is an option to house the springs in the anchors to minimize - - negative impact of debris.
- Two integrated guiding wheels 608 with cutting blades are connected to the chain cutting control device 607 that is gently lowered during cutting using control cable 606 and/or the weight of this device and/or actuators shown in Figure 2 of the original patent application.
- the cutting starts at the top of the intersection as denoted by the dashed dotted line 611 and the chain cutter and the chain cutter control gradually move downwards until dashed dotted line 612 is reached.
- control cable 606 is left out and the lowering of the control device is activated and
- the cutting chains 601A and 601B can be operated in phase and out of phase.
- a mechanical device in the control unit act on frictional differences between the control device and the chain cutters in this case.
- the springs 604 and 610 can be replaced by an oscillating electric or pneumatic actuator as in the examples given before .
- Figure 7 shows a configuration with one vertical wells 700 and a vertical well 705 with side track 711. This may be advantageous if the distance between the two wells is large compared to the depth.
- the two anchors 703 and 709 fixate two wheels 704 and 710 to guide control cables 706 and 707.
- the end of these control cables are connected to guiding wheels 708 and 709 for the chain cutter 701.
- the chain cutter can oscillate or move continuously. By putting tension on the control cables the lateral force of the cutter on the rock can be increased while cutting.
- the cutting chain starts along the orginal side track 711 until it reaches the dashed dotted line 712.
- the guiding wheels 708 and 709 can move somewhat to each other as a result from the force - - balance.
- sliding cases in the well bore below these guiding wheels can maintain the center of these wheels in the well bore. These sliding cases are not drawn in Figure 7.
- each of the control cables 706 and 707 forms a chain cutter control cable which controls the lateral force between the chain cutter assembly 712 and the bottom of the side track 711 from which formation particles are carved out by the
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- Mining & Mineral Resources (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1306907.5A GB2500498B (en) | 2010-10-22 | 2011-10-20 | Excavating deposits from an underground formation layer |
US14/353,478 US20150308267A1 (en) | 2010-10-22 | 2011-10-20 | Excavating deposits from an underground formation layer |
AU2011317571A AU2011317571B2 (en) | 2010-10-22 | 2011-10-20 | Excavating deposits from an underground formation layer |
CA2815146A CA2815146A1 (en) | 2010-10-22 | 2011-10-20 | Excavating deposits from an underground formation layer |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10188575 | 2010-10-22 | ||
EP10188575.4 | 2010-10-22 | ||
EP11183234.1 | 2011-09-29 | ||
EP11183234 | 2011-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012052496A1 true WO2012052496A1 (en) | 2012-04-26 |
Family
ID=44840162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/068297 WO2012052496A1 (en) | 2010-10-22 | 2011-10-20 | Excavating deposits from an underground formation layer |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150308267A1 (en) |
AU (1) | AU2011317571B2 (en) |
CA (1) | CA2815146A1 (en) |
GB (1) | GB2500498B (en) |
WO (1) | WO2012052496A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITRM20120554A1 (en) * | 2012-11-13 | 2013-02-12 | Ignazio Congiu | SYSTEM OF EXPLOITATION OF LOW ENTALPIA GEOTHERMAL ENERGY |
ITRM20120211A1 (en) * | 2012-05-11 | 2013-11-12 | Ignazio Congiu | EXCAVATION SYSTEM FOR THE EXCAVATION OF A WELL AND / OR FOR THE REALIZATION IN THE UNDERLYING OF ONE OR MORE SLOTS TO BE USED AS RADIANT SURFACES FOR THE EXPLOITATION OF GEOTHERMAL ENERGY. |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109025951B (en) * | 2018-10-19 | 2024-01-02 | 国氢能源科技有限公司 | Underground gasifier type and building and gasification method |
CN111485881B (en) * | 2020-04-07 | 2022-02-01 | 内蒙古金陶股份有限公司 | Mining method of steeply inclined thin ore vein |
Citations (8)
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US2796129A (en) | 1951-08-13 | 1957-06-18 | Orpha B Brandon | Oil recovery process |
US4232904A (en) | 1979-02-21 | 1980-11-11 | Hurd Robert L | Method and apparatus for deep mining using chain driven in fixed direction |
US4442896A (en) | 1982-07-21 | 1984-04-17 | Reale Lucio V | Treatment of underground beds |
US5033795A (en) | 1989-11-09 | 1991-07-23 | The United States Of America As Represented By The Secretary Of The Interior | Method of mining a mineral deposit seam |
US20020030398A1 (en) * | 2000-03-13 | 2002-03-14 | Drake Ronald D. | Method and system for mining hydrocarbon-containing materials |
US6688702B1 (en) * | 2002-12-16 | 2004-02-10 | Grigori A. Abramov | Borehole mining method |
US20070039729A1 (en) * | 2005-07-18 | 2007-02-22 | Oil Sands Underground Mining Corporation | Method of increasing reservoir permeability |
US7647967B2 (en) | 2006-01-12 | 2010-01-19 | Jimni Development LLC | Drilling and opening reservoir using an oriented fissure to enhance hydrocarbon flow and method of making |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US442896A (en) * | 1890-12-16 | johnson | ||
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- 2011-10-20 CA CA2815146A patent/CA2815146A1/en not_active Abandoned
- 2011-10-20 US US14/353,478 patent/US20150308267A1/en not_active Abandoned
- 2011-10-20 AU AU2011317571A patent/AU2011317571B2/en not_active Ceased
- 2011-10-20 WO PCT/EP2011/068297 patent/WO2012052496A1/en active Application Filing
- 2011-10-20 GB GB1306907.5A patent/GB2500498B/en not_active Expired - Fee Related
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Publication number | Priority date | Publication date | Assignee | Title |
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ITRM20120211A1 (en) * | 2012-05-11 | 2013-11-12 | Ignazio Congiu | EXCAVATION SYSTEM FOR THE EXCAVATION OF A WELL AND / OR FOR THE REALIZATION IN THE UNDERLYING OF ONE OR MORE SLOTS TO BE USED AS RADIANT SURFACES FOR THE EXPLOITATION OF GEOTHERMAL ENERGY. |
WO2013168189A1 (en) * | 2012-05-11 | 2013-11-14 | Ignazio Congiu | Drilling system for the excavation of a well and/or for the realisation in the underground of one or more slots to be used as radiant surfaces for the exploitation of the geothermal energy |
ITRM20120554A1 (en) * | 2012-11-13 | 2013-02-12 | Ignazio Congiu | SYSTEM OF EXPLOITATION OF LOW ENTALPIA GEOTHERMAL ENERGY |
Also Published As
Publication number | Publication date |
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AU2011317571B2 (en) | 2015-07-02 |
US20150308267A1 (en) | 2015-10-29 |
GB201306907D0 (en) | 2013-05-29 |
CA2815146A1 (en) | 2012-04-26 |
GB2500498B (en) | 2016-01-06 |
GB2500498A (en) | 2013-09-25 |
AU2011317571A1 (en) | 2013-05-23 |
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