Flexible drive apparatus for boring lateral bore holes from well

Details Flexible drive apparatus for boring lateral bore holes from well Flexible drive apparatus for boring lateral bore holes from well

1981-04-01

1983-12-20

Purser, Ernest R.

Electricity: conductors and insulators

Conduits, cables or conductors

Insulated

74841, 173146, 166 50, 166 557, 175 61, 175320, E21B 304, E21B 1720

Patent

active

044211830

ABSTRACT:
Apparatus is provided for penetrating boreholes in oil wells. The apparatus includes a shaft rotatable by power means. First means may be operatively associated with the shaft and a rod to obtain a rotation of the rod by the shaft. Second means obtain a linear movement of the rod at each instant in accordance with a load imposed upon the rod at that instant. The second means may include means providing a slippage between the rotary movements of the shaft and the linear movements of the rod in accordance with the load on the rod. Third means are operatively coupled to the rod and are adaptable in configuration and position in accordance with the configuration of the bore hole to be penetrated. The third means may include an outer casing, a flexible boom movable within the outer casing and resilient means disposed within the flexible boom and movable within the outer casing. Means may rotate the resilient means in accordance with the rotation of the rod. Means may move the flexible boom linearly in accordance with the linear movement of the rod. Fourth means may be coupled to the flexible boom and the resilient means for operation in accordance with the linear movements of the flexible boom and the rotary movements of the resilient means. The fourth means penetrate the bore hole.

REFERENCES:
patent: 1865853 (1932-07-01), Granville

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