Abstract:
Four main problems that have effects on heavy oil cold production technique are discussed on base of field data. Big-hole, deep penetration and high density pattern perforation technology must be applied in cold production wells; progressive cavity pumps with high rotation speed and being suitable for high sand cut and large crude densi ty should be used and run to the bottom of oil layers; ultraheavy and superheavy oil layers are the main targets for cold production; and directional cluster wells are suitable for development of multiplayer narrow string heavy oil reservoirs controlled by faults.