综合地球化学和测并资料确定了中上奥陶统有效烃源岩的大致分布范围。
The distribution of effective hydrocarbon source rock is determined by combining geochemical data and logging data.
中上奥陶统圈闭发育多种类型，有成岩型圈闭、礁型圈闭和受构造作用控制的成岩型圈闭。
There were various trap types developed in the Middle Upper Ordovician, including sedimentary type, reef type and structure controlled sedimentary type.
油源对比证实：盆地目前保存下来的海相成因工业性油藏，主要来源于中上奥陶统泥灰岩。
The correlation between oil and source proved that the preserved commercial oil reservoirs of Marine origin in the Tarim basin are mainly generated from the marl of the Middle Upper Ordovician.
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