| 1. | Three times of hydrocarbon generation : a case study of jiyang depression
二叠系烃源岩为例 |
| 2. | Evaluation on permian oil and gas bearing system in yining depression
伊宁凹陷二叠系含油气系统评价 |
| 3. | Prospective study on coalbed gas resources in carboniferous - permian , west henan
二叠系煤层气资源前景研究 |
| 4. | Sedimentary environment analysis of permian coal stratum in haizi coal mine
海孜煤矿二叠系含煤地层沉积环境分析 |
| 5. | Gas generation model of permo - carboniferous coal in south slope of huimin sag
惠民凹陷南坡石炭二叠系煤层二次生气模式 |
| 6. | Hydrogeological conditions of carboniferous - permian coal reservoirs in north china
华北地区石炭二叠系煤储层水文地质条件 |
| 7. | The characters and variation of carboniferous - permian coal in tongxin coalmine
同忻井田石炭二叠系煤层煤质特征及其变化规律 |
| 8. | Analysis to the deposit environment and coal forming model in permian period in yong - xia xin - qiao coal field
永夏煤田新桥井田二叠系沉积环境与聚煤规律浅析 |
| 9. | The reservoirs in permian is consist of carbonate rock , tuff , clastic rock and volcanic rock
二叠系储集层主要由碳酸盐岩、沉凝灰岩、碎屑岩和火山岩组成。 |
| 10. | The target strata in yulin gas field lie in the bottom of shanxi formation of permian , upper palaeozoic
摘要榆林气田目的层系位于上古生界二叠系山西组底部。 |
