GB1575151A - Thermal drilling equipment - Google Patents
Thermal drilling equipment Download PDFInfo
- Publication number
- GB1575151A GB1575151A GB1349878A GB1349878A GB1575151A GB 1575151 A GB1575151 A GB 1575151A GB 1349878 A GB1349878 A GB 1349878A GB 1349878 A GB1349878 A GB 1349878A GB 1575151 A GB1575151 A GB 1575151A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ice
- drilling equipment
- thermal drilling
- thermal
- bore
- 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.)
- Expired
Links
- 238000005553 drilling Methods 0.000 title claims description 27
- 239000000463 material Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000010891 electric arc Methods 0.000 claims description 3
- 239000013505 freshwater Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 210000002105 tongue Anatomy 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/14—Drilling by use of heat, e.g. flame drilling
- E21B7/15—Drilling by use of heat, e.g. flame drilling of electrically generated heat
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
(54) THERMAL DRILLING EQUIPMENT
(71) We, ICEBERG TRANSPORT INTER
NATIONAL (ITI) LIMITED, a company registered in the Cayman Islands, of P.O. Box 309, George Town, Grand Cayman, Cayman Islands, B.W.I., do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The present invention relates to thermal drilling equipment, i.e. equipment for drilling material by melting the material, and particularly to thermal drilling equipment for boring through large masses of ice, for example, tabular icebergs.
The idea has been conceived of using tabular icebergs as fresh water supplies for arid areas in both hemispheres. Tabular icebergs originate exclusively in the Antarctic, where the ice does not advance in the form of tongues but forms a plateau which has a clearly defined frontier where it meets the sea. The Antarctic continent is not surrounded by mountains, but is ringed with a rim of ice, part of which rests on the continental shelf and the rest of which floats on the sea. Under the pressure of the ice inland, this mass of ice is slowly pushed towards the sea, and from time to time tabular icebergs break away from it.
These may be of considerable size, covering an area of several square kilometres and being 200 to 300 metres thick.
Thermal drilling of bore holes through a mass of ice is a known procedure used up to now for scientific ends. However, in order to make permanent bore-holes with a greater diameter, it is essential to avoid the melted ice remaining in the bore-hole and refreezing on contact with the cold walls of the hole. Moreover, the areas transmitting heat to the mass of ice should be concentrated at the furthest end of the thermal drilling equipment.
The equipment used up to now has one end shaped like a torpedo or shell. Heat is generated at the tip of the penetrating cone. Unlike previous equipment this invention proposes thermal drilling equipment which is characterised in that externally it has the form of a straight cylinder and that internally it has the form of a truncated cone coaxial with the cylinder, and with its larger face corresponding to the lower edge of the outer cylinder and its smaller face inside the cylinder. Due to this special shape contact with the ice and the application of heat is made along the perimeter instead of at the point, and the melted ice is discharged through the centre of the thermal drill and not along its peripheral surface.Consequently, it is possible to set up a pump to discharge the melted ice corresponding to the volume of the bore-hole to the upper surface of the ice so that the hole will not be blocked again by the re-frozen water.
The accompanying drawing shows certain special features of the invention. The single figure is a partial cross-section through thermal drilling equipment (1) in accordance with the invention. The external wall is cylindrical (2). The lower edge (3) is rounded to fit with a curved truncated cone surface (4) coaxial with the exterior cylindrical wall (2). At the top of the inverted truncated cone (4) is a pump (5) which discharges the melted ice corresponding to the volume of the bore-hole in the ice (8) via a tube (6), the wall (7) of the bore-hole (8) having nearly the same diameter as the thermal drill (1). The lower edge (3) of the thermal drilling equipment (1) is heated by a heater element (9).
It is also possible to use annular electrodes producing an annular electric arc.
WHAT WE CLAIM IS:- 1. Thermal drilling equipment, comprising a cylindrical body having a leading edge including heating means for melting material to be drilled and a truncated cone extending into the body from the leading edge to provide a funnel for removing melted material during thermal drilling.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (5)
1. Thermal drilling equipment, comprising a cylindrical body having a leading edge including heating means for melting material to be drilled and a truncated cone extending into the body from the leading edge to provide a funnel for removing melted material during thermal drilling.
2. Thermal drilling equipment according to claim 1, wherein the heating means comprises an electrical resistance heater element.
3. Thermal drilling equipment according to claim 1, wherein the heating means comprises annular electrodes separated by a space for an electric arc.
4. Thermal drilling equipment according to any preceding claim, including a pump to discharge the melt corresponding to the volume of a drilled bore-hole to the upper surface of the material being thermally drilled.
5. Thermal drilling equipment substantially as herein described with reference to, and as illustrated in, the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7712181A FR2388125A1 (en) | 1977-04-22 | 1977-04-22 | THERMOFORAGE EQUIPMENT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1575151A true GB1575151A (en) | 1980-09-17 |
Family
ID=9189794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1349878A Expired GB1575151A (en) | 1977-04-22 | 1978-04-06 | Thermal drilling equipment |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS53132402A (en) |
| AU (1) | AU3529478A (en) |
| DE (1) | DE2810022A1 (en) |
| FR (1) | FR2388125A1 (en) |
| GB (1) | GB1575151A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2630017C2 (en) * | 2016-01-11 | 2017-09-05 | Федеральное государственное бюджетное учреждение "Арктический и Антарктический научно-исследовательский институт" (ФГБУ "ААНИИ") | Method of determining location of bottom boundary of toros and hummock consolidated layer in electro-thermal drilling |
| RU2643376C1 (en) * | 2017-03-01 | 2018-02-01 | Федеральное государственное бюджетное учреждение "Арктический и Антарктический научно-исследовательский институт" (ФГБУ "ААНИИ") | Method of location of lower boundary of consolidated layer of ridge and hummock based on water melt salt content in thermal electric drilling |
| RU2647545C1 (en) * | 2017-01-10 | 2018-03-16 | Федеральное государственное бюджетное учреждение "Арктический и Антарктический научно-исследовательский институт" (ФГБУ "ААНИИ") | Method of determining ice boundary and ground while burning stamukh of hot water |
| CN112135955A (en) * | 2018-04-25 | 2020-12-25 | 亚琛工业大学 | Melting head of ice melting equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2038475C1 (en) * | 1992-04-03 | 1995-06-27 | Санкт-Петербургский государственный горный институт им.Г.В.Плеханова (технический университет) | Electrothermomechanical drilling method and apparatus |
| CN104790875B (en) * | 2015-04-28 | 2017-08-25 | 中石化石油工程机械有限公司研究院 | A kind of electrical heat energy mechanical energy integrates broken rock drill bit |
-
1977
- 1977-04-22 FR FR7712181A patent/FR2388125A1/en not_active Withdrawn
-
1978
- 1978-03-08 DE DE19782810022 patent/DE2810022A1/en active Pending
- 1978-04-06 GB GB1349878A patent/GB1575151A/en not_active Expired
- 1978-04-20 AU AU35294/78A patent/AU3529478A/en active Pending
- 1978-04-22 JP JP4830278A patent/JPS53132402A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2630017C2 (en) * | 2016-01-11 | 2017-09-05 | Федеральное государственное бюджетное учреждение "Арктический и Антарктический научно-исследовательский институт" (ФГБУ "ААНИИ") | Method of determining location of bottom boundary of toros and hummock consolidated layer in electro-thermal drilling |
| RU2647545C1 (en) * | 2017-01-10 | 2018-03-16 | Федеральное государственное бюджетное учреждение "Арктический и Антарктический научно-исследовательский институт" (ФГБУ "ААНИИ") | Method of determining ice boundary and ground while burning stamukh of hot water |
| RU2643376C1 (en) * | 2017-03-01 | 2018-02-01 | Федеральное государственное бюджетное учреждение "Арктический и Антарктический научно-исследовательский институт" (ФГБУ "ААНИИ") | Method of location of lower boundary of consolidated layer of ridge and hummock based on water melt salt content in thermal electric drilling |
| CN112135955A (en) * | 2018-04-25 | 2020-12-25 | 亚琛工业大学 | Melting head of ice melting equipment |
| CN112135955B (en) * | 2018-04-25 | 2022-11-01 | 亚琛工业大学 | Melting head of ice melting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2810022A1 (en) | 1978-11-02 |
| AU3529478A (en) | 1979-10-25 |
| JPS53132402A (en) | 1978-11-18 |
| FR2388125A1 (en) | 1978-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |