Horizontal earth boring directional guide

Patent · Tue Oct 15 04:00:00 EDT 1985

OSTI ID:5961137

Williamson, C R; Peterson, F M

Discloses a machine and method for drilling a horizontal bore through earth formation including a directional guide for supporting the rotating drill stem near the bore entrance to cause the drill stem to extend into the drilled bore toward a designated target. The directional guide includes a base member adapted to be supported upon the earth surface across a trench, a first guide sleeve for supporting rotatable drill stem and extending below the base member into the trench through a first riser guide member rigidly connected to the first sleeve and adjustably connected to the base member, adjustment means for connecting the first guide member to the base member to position and to support said first sleeve from said base member at a designated longitudinal distance from said base member and a designated lateral distance and rotational relation with respect to the base member. A second said guide member is mounted apart from the first guide member and adjustably connected by means of a second adjustment means in the same manner as the first guide member. Sighting means may be mounted with the positioning means on the drill stem for aligning the drill sten with the target through adjustment of the adjustment means.

• Assignee: IFI; EDB-86-085045
• Patent Number(s): US 4546835
• OSTI ID: 5961137
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CONTROL EQUIPMENT
DESIGN
DIRECTIONAL DRILLING
DRILL BITS
DRILL STEM TESTING
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
NATURAL GAS WELLS
OIL WELLS
POSITIONING
RODS
TESTING
WELL DRILLING
WELLS