Boring or penetrating the earth – Processes – Boring with specific fluid
Patent
1983-07-25
1985-08-13
Novosad, Stephen J.
Boring or penetrating the earth
Processes
Boring with specific fluid
175 70, 175104, 175107, 175393, 175422, 239424, 299 17, E21B 718
Patent
active
045344272
ABSTRACT:
An abrasive-fluid jet apparatus and process for drilling holes in rock having a rotary drill bit with multiple abrasive-fluid jet nozzles in the face of the bit and a stationary drill head housing torque generation apparatus and a rotary mounting holding the rotary drill bit beneath and in rotatable relation to the drill head. Abrasive supply facilities and fluid supply facilities are located at ground level for separate supply of the abrasive and the fluid to the abrasive-fluid jet nozzles. It is preferred that the abrasive be supplied to the nozzles in the form of slurry or foam. The apparatus and process of this invention permits deep hole drilling at lower fluid pressures than and without surface structures required by current deep drilling apparatus and techniques.
REFERENCES:
patent: 1390025 (1921-09-01), Drake
patent: 1512140 (1924-10-01), Schaub
patent: 2609182 (1952-09-01), Arutunoff
patent: 3055442 (1962-09-01), Prince
patent: 3212217 (1965-10-01), Furgason
patent: 3713699 (1973-01-01), Johnson, Jr.
patent: 3819519 (1974-06-01), Sharman et al.
Wang Fun-Den
Yie Gene G.
Dang Hoang C.
Novosad Stephen J.
Speckman Thomas W.
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