Claims
- 1. A drilling apparatus used in a drill string for drilling a borehole in an earth formation, said drilling causing said earth formation to be broken or cut into chips and debris which are transported by a flow of drilling fluid in said borehole, said drilling apparatus comprising:
- a drill bit having at least one connection structure thereon for connecting said bit in said drill string and an interior passage for said flow of said drilling fluid therethrough, said drill bit having a cavity therein contacted by said chips and debris transported by said flow of drilling fluid in said borehole;
- movable apparatus contained within said cavity of said drill bit, said apparatus movable in said flow of said drilling fluid in said cavity to break said chips and debris and to prevent accretion of said chips and debris or portions of said drilling fluid in an exterior area surface of said drill bit; and
- drive apparatus having a portion thereof connected to a portion of said drill string and having a portion thereof connected to said movable apparatus, said drive apparatus thereby causing said movable apparatus to move within said drill bit.
- 2. The drilling apparatus of claim 1, wherein said cavity is an area formed by at least two opposed surfaces in said drill bit.
- 3. The drilling apparatus of claim 1, wherein said movable apparatus comprises:
- a rotating chip breaker having a portion extending into said cavity in said drill bit.
- 4. The drilling apparatus of claim 3, wherein said movable apparatus comprises:
- one or more movable members extending into said cavity in said drill bit, said movable apparatus secured to a portion of a shaft extending into said cavity in said drill bit.
- 5. The drilling apparatus of claim 1, wherein said drill string includes a drill motor having a portion thereof connected to said drive apparatus.
- 6. The drilling apparatus of claim 1, wherein said drill string includes a drill motor having a drive shaft and a housing; and
- said drive apparatus having a portion thereof connected to the drive shaft of said drill motor and a portion thereof connected to the housing of said drill motor.
- 7. The drilling apparatus of claim 1, wherein said drill string includes a drill motor having a drive shaft and a housing; and
- said drive apparatus includes a chip breaker drive assembly, said chip breaker drive assembly having a portion thereof connected to the drive shaft of said drill motor, a portion thereof connected to the housing of said drill motor, and a portion thereof connected to said drill bit.
- 8. The drilling apparatus of claim 1, wherein said drill string includes a drill motor having a drive shaft and a housing; and
- said drive apparatus includes a chip breaker drive assembly, said chip breaker drive assembly having a portion thereof connected to the drive shaft of said drill motor, a portion thereof connected to the housing of said drill motor, and a portion thereof connected to said drill bit, said chip breaker drive assembly including:
- an upper carrier connector support connected to the drive shaft of said drill motor;
- a stationary gear track connected to the housing of said drill motor;
- at least one planet drive gear engaging a portion of the stationary gear track;
- at least one planet drive shaft engaging the at least one planet drive gear and a portion of the upper carrier connector support;
- a lower carrier connector support connected to the at least one connection structure of said drill bit and connected to the at least one planet drive shaft; and
- a sun gear having a portion thereof engaging a portion of the at least one planet drive gear and connected to said movable apparatus.
- 9. The drilling apparatus of claim 8, wherein said drive apparatus further includes:
- a drive shaft connecting the sun gear to said movable apparatus, said movable apparatus including a chip breaker.
- 10. The drilling apparatus of claim 9, wherein said movable apparatus further includes:
- a flail.
- 11. The drilling apparatus of claim 1, wherein said drill string includes a drill collar having a connection structure thereon; and
- said drive apparatus includes a chip breaker drive assembly, said chip breaker drive assembly having a portion thereof connected to the connection structure of said drill collar, a portion thereof engaging a portion of said borehole, and a portion thereof connected to said drill bit, said chip breaker drive assembly including:
- an upper carrier connector support connected to the connection structure of said drill collar;
- a stationary gear track having a portion thereof engaging a portion of said borehole;
- at least one planet drive gear engaging a portion of the stationary gear track;
- at least one planet drive shaft engaging the at least one planet drive gear and a portion of the upper carrier connector support;
- a lower carrier connector support connected to the at least one connection structure of said drill bit and connected to the at least one planet drive shaft; and
- a sun gear having a portion thereof engaging a portion of the at least one planet drive gear and connected to said movable apparatus.
- 12. The drilling apparatus of claim 11, wherein said drive apparatus further includes:
- a drive shaft connecting the sun gear to said movable apparatus, said movable apparatus including a chip breaker.
- 13. The drilling apparatus of claim 1, wherein said drill string includes a drill pipe having a connection structure thereon; and
- said drive apparatus includes a chip breaker drive assembly, said chip breaker drive assembly having a portion thereof connected to the connection structure of said drill pipe, a portion thereof engaging a portion of said borehole, and a portion thereof connected to said drill bit, said chip breaker drive assembly including:
- an upper carrier connector support connected to the connection structure of said drill pipe;
- a stationary gear track having a portion thereof engaging a portion of said borehole;
- at least one planet drive gear engaging a portion of the stationary gear track;
- at least one planet drive shaft engaging the at least one planet drive gear and a portion of the upper carrier connector support;
- a lower carrier connector support connected to the at least one connection structure of said drill bit and connected to the at least one planet drive shaft; and
- a sun gear having a portion thereof engaging a portion of the at least one planet drive gear and connected to said movable apparatus.
- 14. The drilling apparatus of claim 13, wherein said drive apparatus further includes:
- a drive shaft connecting the sun gear to said movable apparatus, said movable apparatus including a chip breaker.
- 15. The drilling apparatus of claim 12, wherein the chip breaker includes a spiral shaped member.
- 16. The drilling apparatus of claim 14, wherein the chip breaker includes a spiral shaped member.
- 17. The drilling apparatus of claim 12, wherein the chip breaker includes a spiral shaped member formed by a plurality of flails.
- 18. The drilling apparatus of claim 12, wherein the chip breaker includes a plurality of flails.
- 19. The drilling apparatus of claim 12, wherein the chip breaker includes a plurality of flails, at least one flail of the plurality of flails having a length thereof extending beyond the drill bit.
- 20. The drilling apparatus of claim 1, wherein said drill string includes a drill member having a connection structure thereon; and
- said drive apparatus includes a chip breaker drive assembly, said chip breaker drive assembly having a portion thereof connected to the connection structure of said drill member, a portion thereof engaging a portion of said borehole, and a portion thereof connected to said drill bit, said chip breaker drive assembly including:
- an upper carrier connector support connected to the connection structure of said drill member;
- a stationary gear track housing having a portion thereof engaging a portion of said borehole;
- at least one planet drive gear engaging a portion of the stationary gear track housing;
- at least one planet drive shaft engaging the at least one planet drive gear and a portion of the upper carrier connector support;
- a lower carrier connector support connected to the at least one connection structure of said drill bit and connected to the at least one planet drive shaft; and
- a sun gear having a portion thereof engaging a portion of the at least one planet drive gear and connected to said movable apparatus.
- 21. The drilling apparatus of claim 20, wherein the stationary gear track housing includes:
- at least one drag block assembly connected to the stationary gear track housing and having a portion thereof engaging a portion of said borehole.
- 22. A drilling apparatus used in a drill string having a drill member therein for drilling a borehole in an earth formation, said drilling causing said earth formation to be broken or cut into chips and debris which are transported by a flow of drilling fluid in said borehole, said drilling apparatus comprising:
- a drill bit having at least one connection structure thereon for connecting said bit in said drill string and an interior passage for said flow of said drilling fluid therethrough, said drill bit having a cavity therein contacted by said chips and debris transported by said flow of drilling fluid in said borehole;
- movable apparatus contained within said cavity of said drill bit, said apparatus movable in said flow of said drilling fluid in said cavity to break said chips and debris and to prevent accretion of said chips and debris or portions of said drilling fluid in an exterior area surface of said drill bit; and
- drive apparatus having a portion thereof connected to a portion of said drill string and having a portion thereof connected to said movable apparatus, said drive apparatus thereby causing said movable apparatus to move within said drill bit, said drive apparatus including:
- a chip breaker drive assembly, said chip breaker drive assembly having a portion thereof connected to a connection structure of said drill member, a portion thereof engaging a portion of said borehole, and a portion thereof connected to said drill bit, said chip breaker drive assembly including:
- an upper carrier connector support connected to the connection structure of said drill member;
- a stationary gear track having a portion thereof engaging a portion of said borehole;
- at least one planet drive gear engaging a portion of the stationary gear track;
- at least one planet drive shaft engaging the at least one planet drive gear and a portion of the upper carrier connector support;
- a lower carrier connector support connected to the at least one connection structure of said drill bit and connected to the at least one planet drive shaft; and
- a sun gear having a portion thereof engaging a portion of the at least one planet drive gear and connected to said movable apparatus.
- 23. The drilling apparatus of claim 22, wherein said drill member in said drill string is selected from the group consisting of a drill pipe, drill collar or stabilizer.
- 24. A drilling apparatus used in a drill string having a drill motor therein having, in turn, a drive shaft and housing for drilling a borehole in an earth formation, said drilling causing said earth formation to be broken or cut into chips and debris which are transported by a flow of drilling fluid in said borehole, said drilling apparatus comprising:
- a drill bit having at least one connection structure thereon for connecting said bit in said drill string and an interior passage for said flow of said drilling fluid therethrough, said drill bit having a cavity therein contacted by said chips and debris transported by said flow of drilling fluid in said borehole;
- movable apparatus contained within said cavity of said drill bit, said apparatus movable in said flow of said drilling fluid in said cavity to break said chips and debris and to prevent accretion of said chips and debris or portions of said drilling fluid in an exterior area surface of said drill bit; and
- drive apparatus having a portion thereof connected to a portion of said drill string and having a portion thereof connected to said movable apparatus, said drive apparatus thereby causing said movable apparatus to move within said drill bit, said drive apparatus including:
- a chip breaker drive assembly, said chip breaker drive assembly having a portion thereof connected to the drive shaft of said drill motor, a portion thereof connected to the housing of said drill motor, and a portion thereof connected to said drill bit, said chip breaker drive assembly including:
- an upper carrier connector support connected to the drive shaft of said drill motor;
- a stationary gear track connected to the housing of said drill motor;
- at least one planet drive gear engaging a portion of the stationary gear track;
- at least one planet drive shaft engaging the at least one planet drive gear and a portion of the upper carrier connector support;
- a lower carrier connector support connected to the at least one connection structure of said drill bit and connected to the at least one planet drive shaft; and
- a sun gear having a portion thereof engaging a portion of the at least one planet drive gear and connected to said movable apparatus.
Parent Case Info
This application is a continuation-in-part of patent application Ser. No. 08/407,384, filed Mar. 17, 1995, entitled "DRILLING APPARATUS WITH DYNAMIC CUTTINGS REMOVAL AND CLEANING", now U.S. Pat. No. 5,651,420.
US Referenced Citations (24)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2181173 |
Apr 1987 |
GBX |
Continuation in Parts (1)
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Number |
Date |
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Parent |
407384 |
Mar 1995 |
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