›› 2018, Vol. 39 ›› Issue (6): 1-1.doi: 10.7657/XJPG20180601

• 论文 •    

准噶尔盆地阜东斜坡区侏罗系河道砂岩高产储集层预测

何开泉,周丽萍,邓勇,刘啸虎,刘亚会,武小宁   

  1. (中国石油集团 东方地球物理公司 研究院 乌鲁木齐分院,乌鲁木齐 830016)
  • 出版日期:2019-01-01 发布日期:1905-07-19

High-Yield Reservoir Prediction in Jurassic Channel Sandstones of Fudong Slope Area, Junggar Basin

HE Kaiquan, ZHOU Liping, DENG Yong, LIU Xiaohu, LIU Yahui, WU Xiaoning   

  1. (Urumqi Branch, Geophysical Research Institute, BGP, CNPC, Urumqi, Xinjiang 830016, China)
  • Online:2019-01-01 Published:1905-07-19

摘要: 准噶尔盆地阜东斜坡区侏罗系石树沟群河道砂体发育,具有“断裂通源、岩性控藏”的特征,不同砂体间产量差异大,常规技术方法预测高产油藏困难。在新采集阜东5井区三维“两宽一高”地震资料基础上,通过分析河道砂岩地震响应特征,首先在河道砂岩内运用叠前AVO派生属性区分油水,定性识别出油层;其次,运用核磁共振测井的有效孔隙度和渗透率综合计算得到孔渗参数,与储集层产量建立相关关系,并在油层内通过孔渗参数地质统计学反演区分出低产、中产和高产油层,定量预测产量,最终得到高产油层预测结果。形成了阜东斜坡区侏罗系河道砂岩高产储集层预测配套技术,有效指导了研究区后期高产井位的部署。

Abstract: The Jurassic Shishugou group in Fudong slope area of Junggar basin is characterized by the development of channel-type sandbodies, which has the characteristics of “fault connected with oil source & reservoir controlled by lithology”. The production varies greatly among different sandbodies and it is difficult to predict high-yield reservoirs with conventional techniques and methods. On the basis of newly acquired “high density, wide azimuth and broadband” 3D seismic data of Wellblock Fudong-5, this paper analyzes the seismic response characteristics of channel sandstones. Firstly, the pre-stack AVO derivative attributes are used to distinguish oil and water in channel sandstones and the reservoirs are identified qualitatively; secondly, the effective porosity and permeability obtained from NMR logging are used to calculate porosity and permeability parameters comprehensively, and the correlation with the reservoir production is established; then the low-yield, medium-yield and high-yield oil layers can be distinguished in the reservoir by the geostatistical inversion and the production can be predicted quantitatively. Finally, the prediction results of high-yield reservoir can be obtained. The matching technology for predicting high-yield reservoirs of Jurassic channel sandstones in Fudong slope area has been integrated and formed, which can effectively guide the deployment of high-yield wells in the later period of the study area

中图分类号: