[특허]Portable and directional electrocrushing drill

[미국특허] Portable and directional electrocrushing drill 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-007/04 E21B-007/15 E21B-007/14
출원번호	UP-0479346 (2006-06-29)
등록번호	US-7559378 (2009-07-27)
발명자 / 주소	Moeny, William M.
출원인 / 주소	Tetra Corporation
대리인 / 주소	Peacock, Deborah A.
인용정보	피인용 횟수 : 53 인용 특허 : 19

초록

The present invention relates to a portable, directional electrocrushing drilling apparatus and method.

대표청구항 ▼

What is claimed is: 1. A pulsed power apparatus for passing a pulsed electrical current through a substrate to drill the substrate, said apparatus comprising: a drill; a pulse generator; an electrode assembly comprising said at least one set of at least two electrodes disposed on said drill passing pulsed electrical current from said pulse generator through the substrate; and said at least one electrode set changeably directing drilling of said drill through the substrate. 2. The apparatus of claim 1 further comprising a cable connecting said electrode assembly to said pulse generator. 3. The apparatus of claim 2 wherein said drill further comprises a switch alternately connecting said at least one electrode set to said pulse generator via said cable. 4. The apparatus of claim 2 wherein said cable comprises at least one conductor connecting each of a plurality of said electrode sets independently to said pulse generator. 5. The apparatus of claim 2 wherein said pulse generator comprises a switch alternately connecting said pulse generator to at least one conductor of said cable connecting each of a plurality of said electrode sets independently to said pulse generator. 6. The apparatus of claim 1 wherein said drill further comprises a plurality of capacitors located in said drill providing part or all of an electrical current feed to plasmas of each of a plurality of said electrode sets. 7. The apparatus of claim 1 wherein said drill further comprises a circuit component selected from the group consisting of capacitors, switches, inductors, and a combination thereof, disposed on said drill providing part or all of an electrical current feed to plasmas of each of a plurality of said electrode sets. 8. The apparatus of claim 2 wherein said pulse generator comprises a switch alternately connecting said pulse generator to at least one conductor of said cable connecting each of a plurality of said electrode sets independently to said pulse generator, each of a plurality of said electrode sets further comprising a circuit component selected from the group consisting of capacitors, inductors, other circuit components, or combinations thereof disposed in said drill providing part or all of an electrical current feed to plasmas of each said electrode set. 9. The apparatus of claim 1 further comprising a fluid flow component providing flushing fluid to said drill. 10. The apparatus of claim 9 wherein said fluid comprises an electrical conductivity less than approximately 10-5 mho/cm. 11. The apparatus of claim 9 wherein said fluid comprises treated water. 12. The apparatus of claim 9 wherein the fluid comprises a dielectric constant greater than approximately 6. 13. The apparatus of claim 9 wherein the fluid comprises a conductivity less than approximately 10-4 mho/cm. 14. The apparatus of claim 13 wherein the fluid comprises a dielectric constant greater than approximately 40. 15. The apparatus of claim 1 wherein said at least two electrodes define therebetween at least one electrode gap. 16. The apparatus of claim 1 wherein said electrodes are oriented substantially along a face of said drill. 17. The apparatus of claim 1 wherein said drill comprises a drill stem assembly enclosing and supporting said electrode assembly. 18. The apparatus of claim 1 wherein said drill comprises a drill stem and a drill tip. 19. The apparatus of claim 1 wherein said pulse generator comprises a variable rate high-voltage pulse generator, said variable rate comprising a higher-repetition rate and a lower-repetition rate. 20. The apparatus of claim 1 wherein said pulse generator provides variable rate pulses. 21. The apparatus of claim 20 wherein said pulses comprise a higher-repetition rate pulse and a lower-repetition rate pulse. 22. The apparatus of claim 21 wherein said electrode set is fed with said higher-repetition rate pulse for changeably directing drilling. 23. A method for passing a pulsed electrical current through a substrate, said method comprising: providing a drill, an electrode assembly comprising at least one set of at least two electrodes, and a cable connected to a pulse generator; disposing at least one set of at least two electrodes on the drill; passing current from the pulse generator through the electrodes and through the substrate; and changeably directing drilling of the drill through the substrate using the at least one set of electrodes. 24. The method of claim 23 further comprising alternately connecting the electrode sets to the pulse generator by a switch in the drill via the cable. 25. The method of claim 23 further comprising connecting the cable comprising at least one conductor independently to each of a plurality of the electrode sets and to the pulse generator. 26. The method of claim 23 further comprising alternately connecting the pulse generator to multiple conductors of the cable by a switch in the pulse generator and connecting each of the electrode sets independently to the pulse generator. 27. The method of claim 23 further comprising disposing a plurality of capacitors on the drill, disposing the capacitors in the drill, and providing part or all of the electrical current feed via the capacitors to plasmas of each electrode set. 28. The method of claim 23 further comprising incorporating a circuit component selected from the group consisting of capacitors, switches, inductors, and a combination thereof to the drill, disposing the circuit component in the drill, and providing part or all of the electrical current feed via the circuit components to plasmas of each electrode set. 29. The method of claim 23 further comprising alternately connecting the pulse generator via a switch to multiple conductors of the cable, connecting each of a plurality of the electrode sets independently to the pulse generator, and providing part or all of the electrical current feed to plasmas of each electrode set via each electrode set, the electrode sets further comprising a circuit component selected from the group consisting of capacitors, inductors and other circuit components located in the drill. 30. The method of claim 23 further comprising providing fluid to the drill. 31. The method of claim 30 wherein the fluid comprises an electrical conductivity less than approximately 10-5 mho/cm. 32. The method of claim 30 wherein the fluid comprises treated water. 33. The method of claim 30 wherein the fluid comprises a conductivity less than approximately 10-4 mho/cm. 34. The method of claim 30 wherein the fluid comprises a dielectric constant greater than approximately 40. 35. The method of claim 23 further comprising generating a variable rate high-voltage pulse from the pulse generator, having a higher-repetition rate and a lower-repetition rate. 36. The method of claim 35 comprising changeably directing drilling of the drill through the substrate towards the at least one electrode set fed with the higher-repetition-rate pulse from the pulse generator. 37. The method of claim 23 further comprising independently supplying an electric current to the at least one electrode set using the cable. 38. The method of claim 23 further comprising defining at least one electrode gap between at least two electrodes. 39. The method of claim 23 further comprising orienting the electrodes of each set of electrodes substantially along a face of the drill. 40. The method of claim 30 wherein the fluid comprises a dielectric constant greater than approximately 6.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
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[미국특허] Portable and directional electrocrushing drill 원문보기

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[미국특허] Portable and directional electrocrushing drill 원문보기

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