中南大学学报（自然科学版）Issue(10)：3789-3800,12.DOI:10.11817/j.issn.1672-7207.2015.10.032
厚层辫状河道期次厘定与多期砂体叠置规律
Stacked rule and stage-time division for thick-layer, multi-period braided river sandbodies
摘要
Abstract
The thick braided river sandbodies whose incised degree was deeper, so it was no obvious mark between electrical response characteristics between two stages channel sandbodies, determined to the stage-time division difficultly, further, the accuracy of single stage channels combination and tracking comparison in the plane were affected. In order to conduct identification and classification for fully complex channels, the “relaxation rebound techniques” based on removal compaction effects were adopted to finish the stage-time division complex river stage by logging, detection logging datum and so on. Then, the reliability of the results was used to test and verify the continuous coring data. On the basis of vertical stage-time division of single well, the tracking and comparison were done by using “the sand thickness center line connecting method” based on modern sedimentary and geological models and theories, and the multiple single period channels were regularly stacked together to summarize the rule of sedimentary evolution. At last, the deposition process and historical reconstruction of complex braided channels were finished. The research results can help to reveal the rule of stacked sands and improve the rate of sand drilling.关键词
厚层辫状河道/单期河道标定法/沉积过程/单期砂厚中心连线法/沉积演化过程Key words
thick-layer braided channel/calibration method of single period channel/deposition process/sand thickness center line connecting method/sedimentary evolution process分类
天文与地球科学引用本文复制引用
单敬福,张彬,赵忠军,李浮萍,王辉,王博..厚层辫状河道期次厘定与多期砂体叠置规律[J].中南大学学报（自然科学版）,2015,(10):3789-3800,12.基金项目
国家自然科学基金资助项目(41372125)；湖北省教育厅基金资助项目(Q20121210)(Project (41372125) supported by the National Natural Science Foundation of China （41372125）
Project (Q20121210) supported by the Ministry of Education of Hubei Province) （Q20121210）
