Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

The feasibility of recovering medium to heavy oil using geopressured/geothermal fluids

Conference · · AAPG Bulletin (American Association of Petroleum Geologists); (United States)
OSTI ID:7024653
;  [1]; ;  [2]
  1. EG and G Idaho, Inc., Idaho Falls (United States)
  2. Louisiana State Univ., Baton Rouge (United States)
Thermal enhanced oil recovery using geopressured/geothermal fluids is a unique concept for recovering heavy and medium oils that are bypassed during conventional production processes. The successful implementation of this technology would provide an environmentally clean and less expensive method of thermal recovery. The GPGT fluids are under high pressure in their parent reservoir and when linked to shallow reservoirs by suitable plumbing will provide a self-propelled method of heat transfer to a target reservoir existing at shallow depth. The method is similar to hot water flooding; thus the basic technology already exists. However, the major difference is the usually high total dissolved solids present in GPGT waters. The exact effect of the brine on the target reservoir is uncertain but may have a beneficial effect not only on viscosity and oil extraction but also on permeability and porosity. The operational and mechanical problems associated with piping the GPGT fluids into shallow reservoirs also are uncertain but probably can be readily overcome. The important point is that an enormous amount of additional domestic heavy and medium oil will be recovered, if the concept works. GPGT fluids combine the temperatures, propulsion, and technology that would be comparatively clean environmentally. The major states from which considerable quantities of additional production is possible are California, Alaska, Arkansas, Louisiana, and Texas, Wyoming and 2 Bbbls in other states. the Alworth field of the south Texas Minando trend is proposed as a pilot site. Run of the economic model on the Alworth field suggests that it will be economic.
OSTI ID:
7024653
Report Number(s):
CONF-910403--
Conference Information:
Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Journal Volume: 75:3
Country of Publication:
United States
Language:
English