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（一）我队系进行石油普查钻探工作，探区地层情况如下表：━━━━━━┯━━━━━━━━━━━━━━━━━━━井深（米）│ 岩 层 情 况──────┼───────────────────0—60 │第四纪流砂、粘土及微量砾石、胶结疏松──────┼───────────────────60—16 │白尘纪黑色页岩，绿色泥质粉砂岩──────┼───────────────────116—250 │红色绿泥岩及粉砂岩、砂岩、钙质砂岩等组│成几个旋迴──────┼───────────────────250—900 │大部分为红色绿色泥岩、砂岩━━━━━━┷━━━━━━━━━━━━━━━━━━━在116—250米间，有五层砂岩（含水气），涌水涌气，其中上边四层涌水量及气量较少，用普通泥浆即可顺利钻进。在第五层（孔深224米）所涌水量及
(A) Our team-based survey for oil drilling, stratigraphy exploration area in the following table: ━━━━━━┯━━━━━━━━━━━━━━━━━━━ depth (m) │ Quaternary formation where ──────┼───────────────────0-60 │ flow of sand, clay, gravel and trace loose cementation ────── ┼───────────────────60-16 │ Baichen century black shale, green muddy siltstone ──────┼─────── ────────────116-250 │ red green and pink mudstone, sandstone, calcareous sandstone │ group into several cycles ──────┼─────── ────────────250-900 │ mostly red green mudstone, sandstone ━━━━━━┷━━━━━━━━━━━━━━━━━━━ Between 116 and 250 meters, there are five layers of sandstone (water-containing gas), gushing water and gushing gas, of which, the amount of water and gas discharged from the upper four floors is less, Into. In the fifth floor (hole depth of 224 meters) by the influx and