In 1999, two infill wells was completed with the well spacing of 400m in the structural highs in the selected east district, and were put into production successively in the year 2000, but with in poor effect as well.

• 1999年选择东区构造高部位以400m井距完钻了2口加密井，并于2000年先后投产，生产效果也不理想。