盘龙洞生物礁是目前所发现的川东北地区最具特色的长兴组二叠系生物礁，其生物礁古油藏是此类型古油气藏的典型代表。

Panlongdong organic reefs is the most typical Permian reefs of Changxing Formation in northeastern Sichuan, and its paleo-reservoir is the typical representation of this kind of reservoirs.

youdao

盘龙洞生物礁古油气藏位于四川省宣汉县鸡唱乡盘龙洞，是一个海绵礁古油气藏；

The present paper propose a newly discovered sponge-reef fossil oil-gas pool in the ChangxingFormationin the Panlongdong, Xuanhan, Sichuan.

youdao