Drilling technique

Patent · Tue Mar 25 04:00:00 EST 1980

OSTI ID:6092823

Messenger, J U

A well bore can be drilled that extends from a surface location to a subsurface location in a mineral-bearing formation. The subsurface location is spaced a great lateral distance from the surface location. The well bore has a first portion that extends vertically from the surface location into the earth's crust and into a formation having good drilling characteristics. A second portion extends for a great distance within and essentially parallel to the bedding plane of the formation having good drilling characteristics, and a third portion extends essentially vertically from the farthest extension of the second portion to the subsurface location in the mineral-bearing formation. Applications include avoidance of surface barriers such as water bodies, in situ coal, gasification, and tar sand oil recovery. 2 claims.

• Assignee: Mobil Oil Corp.
• Patent Number(s): US 4194580
• OSTI ID: 6092823
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL GASIFICATION
COMBUSTION
DIRECTIONAL DRILLING
DRILLING
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
IN-SITU COMBUSTION
IN-SITU PROCESSING
MATERIALS
OIL SANDS
OIL WELLS
OXIDATION
PROCESSING
ROTARY DRILLING
TECHNOLOGY UTILIZATION
THERMOCHEMICAL PROCESSES
WELL CASINGS
WELL DRILLING
WELLS