It is pointed out that the intercalated bed in Wellblock No. 2 of Lunnan oilfield can be divided into calcareous one, fine self calcite cementing one and fine adjacent calcite cementing one.

• 研究发现，轮南2井区的隔夹层分为泥质隔夹层、钙质胶结细粒岩性夹层及细粒岩性紧邻钙质胶结层夹层。