Abstract: Oil Sand: Where We Are, and Where We May Be Going

Howard R. Ritzma

The immense hydrocarbon resource known to exist in the world's oil sand and heavy oil deposit is seldom recognized by economists, politicians, and

others who prognosticate future energy supplies. The size of this largely uncounted resource is reliably estimated at more than 3 trillion barrels and is very likely much larger. Most deposits are poorly known; detailed basic information on areal extent, thickness, degree of saturation, and nature of the bitumen (oil) is generally lacking. Parameters used in the estimation process vary widely resulting in estimates that are uneven and approximate at best. Progress has been made in defining the substance(s) being measured, but the boundary between oil sand and heavy oil is often diffuse and difficult to define on the outcrop, in cores, or over a producing area. Slow but significant work continues in mapping and analytical work to expand, revise, refine, and correct information already n the literature. This is especially true for deposits considered attractive for exploration and eventual exploitation and those already in production.

A striking difference exists between the status of oil sand research, development, and production in Canada and the almost total lack of such activity in the U.S. Reasons for this disparity are considered; the possibility of the "Canadian experience" being replicated south of the border is explored.

An overview of geographic, economic, and technological factors affecting possible development of the oil-sand resource is presented; a cautious prediction of future trends is offered.

AAPG Search and Discovery Article #90986©1994 AAPG Annual Convention, Denver, Colorado, June 12-15, 1994