...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Exploration & Exploitation >Geology and hydrocarbon accumulation of the large ultra-deep Rewapu oilfield in Tarim basin, China
【24h】

Geology and hydrocarbon accumulation of the large ultra-deep Rewapu oilfield in Tarim basin, China

机译：塔里木盆地雷瓦普特大超深油田的地质与油气成藏

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Over the past five years, oil and gas exploration to marine facies carbonate rock in China took on a fast-growing tendency, and a lot of large-scale oil and gas fields were discovered in succession. Particularly in the north of Tarim Basin, the large-scale Rewapu oil field was recently discovered in the Ordovician carbonate rock layer system with buried depth of 7,000 meters, manifesting that a significant potential of exploration exists in Tarim Basin's deep layer and ultra deep layer of Tarim basin. The results indicate that reservoirs of Rewapu oilfield are low porosity and low permeability layers karst reservoirs, reservoir temperature is around at 160 degrees C with oil, and the crude oil comes from the upper Ordovician source rock of the Manjaer depression. The hydrocarbon accumulation time is in the Late Permian, and since the Triassic sedimentation, the reservoir is in the continuous process of burying. It belongs to the old oil and gas system. Due to low geothermal gradient and late quick deep burial, oil reservoir has yet to be cracked, so well-preserved old oil reservoir can be discovered at the depth of 7000m. The Ordovician carbonate reservoir in Rewapu was a fracture-cavity oil reservoir, and the oil and gas distribution and enrichment are controlled not by the local structure, but by the distribution and the development degree of Ordovician carbonate reservoir. The reservoirs of Rewapu block are mainly distributed in the Ordovician Yijianfang formation and at the top Yingshan formation, and the reservoir development degree was controlled by the karstification, the degree of fracture development and the sedimentation facies, concentrating into belts in plane and not controlling by the depth vertically. The overlying strata are limestone of Tumuxiuke formation and marls and limestone of Sangtamu formation in the upper Ordovician. Rewapu oil reservoir features stratified oil and mainly contains normal oil with low viscosity and high wax. Research results show that Ordovician reservoirs in Rewapu block have relatively large depth of burial, but they are still favorable in quality and sit along the path for the oil and gas's northward migration. Therefore, this block has immense resources potential and boasts good exploration and development outlook. In this paper, we study Rewapu block oil reservoir's geological features and hydrocarbon accumulation mechanism, which is of important significance for directing the exploration to oil and gas at the deep layer and ultra deep layer of Tarim Basin.
机译：近五年来，我国海相碳酸盐岩的油气勘探呈快速增长趋势，陆续发现了许多大型油气田。特别是在塔里木盆地北部，最近在奥陶系碳酸盐岩层系统中发现了大型的雷瓦普油田，埋藏深度为7,000米，这表明塔里木盆地的深层和超深层具有巨大的勘探潜力。塔里木盆地。结果表明，雷瓦铺油田储层为低孔隙度，低渗透层岩溶储层，含油储层温度在160℃左右，原油来自Manjaer凹陷上奥陶统烃源岩。油气成藏时间在二叠纪晚期，由于三叠纪沉积，储层处于连续埋藏过程。它属于旧的石油和天然气系统。由于地热梯度低，埋藏较晚，储层尚未破裂，因此在7000m深度可发现保存完好的老油藏。雷瓦普的奥陶系碳酸盐岩油藏为缝洞型油藏，其油气分布和富集程度不受奥陶系碳酸盐岩油藏的分布和发育程度的控制。雷瓦铺区块的储集层主要分布在奥陶系一间房组和营山顶组，储集层的发育程度受岩溶作用，裂缝发育程度和沉积相的控制，集中成平面带状，不受控制。垂直深度。上覆地层是上奥陶统的土木休克组灰岩和泥灰岩和桑塔木组灰岩。雷瓦普（Rwapu）油层具有分层油，主要包含低粘度和高蜡质的普通油。研究结果表明，雷瓦普区块的奥陶系油藏具有较大的埋藏深度，但质量仍然良好，并且位于油气北移的路径上。因此，该区块具有巨大的资源潜力，具有良好的勘探开发前景。本文研究了雷瓦普区块油藏的地质特征和油气成藏机理，对指导塔里木盆地深层和超深层油气勘探具有重要意义。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号