Abstract: Sui Zhong 36-1 oil field is a low-pressure heavy oil field with high porosity and high permeability and unconsolidated payzones. According to the sand control criteria of on-site observation, experience, and mechanics calculation et al, the sand production will be the main problem of oil exploitation, and the
sand control will be thekeypoints of oil development and formation damage control, As the Sui Zhong 36-1 oil field have multiple payzones with interbedded shale and water, the well completion method of inside casing gravel packing was selected finally. Our theoretical research and the experience at home and abroad shown that frac-pack can remove not only the skin factor of perforating crushed-zone damage but also all or most all
drilling damage, at the same time, have the role of stimulation.So, the productivity of frac-pack completion is almost near to that of original one without damage. Thus it can be seen that frac- pack completion is the better sand control completion method for low-pressure heavy oil field with sand producing problem.

Key words: low pressure heavy oil field, criteria of sand control, formation damage control, inside casing gravel packing, frac-pack completion