| K70-X102well area belongs to ordinary pressure lithologic deposit with high porosity, high permeability, and high temperature. Based on reservoir calculation and features of formation testing and pilot production, evaluation has been conducted on oil recovery method, well pattern and well spacing, well productivity and steam injection parameter by numerical modeling. In the optimized program,2.4km2oil bearing area and271.1×104t geological reserves are designed to be developed. Total27wells are included, among which there are4old wells and23new wells (20new directional wells and3new horizontal wells). Steam huff and puff and thermal recovery have been applied, predicted recovery ratio is15.34%, newly-installed capacity is4.82×104t, and oil producing rate is1.78%. |
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