| 摘要: |
| 春晖油田侏罗系八道湾组油层段为中砾岩、细砾岩及含砾砂岩构成的一套粗碎屑沉积,储层非均质性较强,物性与含油性密切相关。为了确定优势储层的发育方向与分布,利用重矿物法和地层倾角法对物源方向进行了研究。重矿物中ZTR指数自西北向东南方向由5增大至20以上,反映出沉积物的搬运方向为西北→东南。18口井的倾角矢量图中矢量点最多的方向也均指示为东南方向,最终确定物源为西北方向的哈拉阿拉特山,同时对近源砾石较高的磨圆度进行了分析。 |
| 关键词: 物源分析 ZTR指数 地层倾角 近源砾石 磨圆度 |
| DOI： |
| 附件 |
| 投稿时间：2013-10-28修订日期：2013-11-08 |
| 基金项目:国家科技重大专项“准噶尔盆地碎屑岩层系大中型油气田形成规律与勘探方向”(2011ZX05002-002);国家重点基础研究发展计划(973)项目“中国西部典型叠合盆地油气成藏机制与分布规律”;中国石油化工股份有限公司重大科技攻关项目“准西北地区超剥带成藏规律及勘探目标”(P12028) |
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| Provenance analysis of the Jurassic Badaowan Formation in the Chunhui Oil Field, Junggar Basin |
| DONG Chen-qiang |
| (Xinchun Oil Production Plant, Shengli Oil Field, Dongying 257000, Shandong, China) |
| Abstract: |
| The oil reservoirs in the Jurassic Badaowan Formation in the Chunhui Oil Field, Junggar Basin are mainly built up of a succession of coarse-grained clastic deposits including medium-to fine-grained conglomerates and gravelly sandstones. In this study, the provenance analysis is based on the heavy mineral method and stratal dip logs to determine the orientation and distribution of the dominant reservoir rocks. The NW-SE-trending increase of ZTR indices in the heavy minerals shows a NW-SE-trending migration of sediments, as indicated by the dip logs for several wells and the roundness of the proximal gravels in the Badaowan Formation. It follows that the principal source of detritus lay to the Halaalate Mountain in the northwest. |
| Key words: provenance analysis ZTR indices stratal dip proximal gravel roundness |
