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oil formations

oil formations

oil formations

oil formations

1

The area is large . The oil formations are thick .

面积大，油层厚。

2

Slim-hole Directional Drilling Techniques in Shallow Oil Formations in Ansai Area

安塞区块浅油层小眼定向井钻井技术

3

Diagenetic facies study on Chang 6-8 oil formations of Triassic Yanchang Formation in Ordos basin, China

陇东地区延长组长 6 -长 8 油层组成岩相研究

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