Boring or penetrating the earth – Below-ground impact members – Fluid-operated
Patent
1991-05-14
1992-10-20
Dang, Hoang C.
Boring or penetrating the earth
Below-ground impact members
Fluid-operated
173 78, 173110, 175106, 175305, 175322, E21B 100, E21B 414
Patent
active
051562235
ABSTRACT:
A downhole oil well tool uses impact, reciprocal drilling and an improved rotating bit or like working member, receiving both fluid pressure and weight from an elongated pipe string with a flow bore in order to drive the tool. A valve within tool housing controls fluid pressure to the working end so that the tool pressures up, then releases pressure through the working member allowing the pipe string to load the bit, creating impact. A clutch rotates the working member during drilling to prevent imprint upon the formation. A bias spring is provided to control and adjust the amount of weight on the bit independent of pipe weight.
REFERENCES:
patent: 1654833 (1928-01-01), Rice, Jr.
patent: 1861042 (1932-05-01), Zublin
patent: 1934252 (1933-11-01), Baker
patent: 2755069 (1956-07-01), Mosby
patent: 3815692 (1974-06-01), Varley
patent: 3946819 (1976-03-01), Hipp
patent: 3978931 (1976-09-01), Sudnishnikov et al.
patent: 4209070 (1980-06-01), Sudnishnikov et al.
patent: 4462471 (1984-07-01), Hipp
patent: 4928770 (1990-05-01), Murray
patent: 4958690 (1990-09-01), Cyphelly
patent: 4958691 (1990-09-01), Hipp
patent: 5029642 (1991-07-01), Crawford
LandOfFree
Fluid operated vibratory jar with rotating bit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid operated vibratory jar with rotating bit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid operated vibratory jar with rotating bit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-187209