【作者】 余鹏；

【导师】 王伟锋； 王秀玲；

【作者基本信息】 中国石油大学 ， 地质工程， 2010， 硕士

【摘要】 潜山油气藏是胜利油田的重要的勘探领域,胜利油田千吨以上生产井的目的层主要是古潜山。但潜山油气勘探中,存在着许多尚未解决的问题,如潜山构造演化的复杂性、潜山勘探的构造裂缝分布规律、成藏条件复杂等。因此需要找到一套潜山地区储层预测及综合解释的有效方法和技术路线,避免单项技术分析的多解性,提高油气藏储层预测的精度,为潜山勘探提供可信的预测结果。本论文以车古201潜山为例,首先在地质资料的分析基础上,利用井资料对车古201潜山的地层、储层进行了划分,将潜山储层纵向上划分为3套,按照不同时期构造运动对车古201潜山形成的影响,将演化过程划分为4个构造期。在精细地质资料研究的指导下,通过对潜山内幕反射特征、精细层位标定、速度场求取、变速成图得到了潜山准确的构造形态,为潜山的预测提供了可靠的资料。综合运用测井约束地震反演技术、地震资料吸收衰减分析技术、地震相预测技术、地震属性技术、小波多尺度边缘检测技术、3dmove构造正反演等多种地球物理方法综合分析潜山裂缝性油气储层的各种特征,预测油气分布规律。利用地震多信息综合预测的结果结合地质、测井认识进行潜山综合评价。本论文通过对各种方法的效果分析发现对于潜山裂缝储层,随机模拟反演、地震资料吸收衰减分析技术、3dmove构造正反演方法取得了很好的预测效果。在综合了多种技术的基础上对储层厚度进行了测算,预测奥陶系八陡组含油面积10.0km~2,平均有效厚度40m。预测凤山组有利含油面积8km~2,有效厚度取50m。更多还原

【Abstract】 Buried hill reservoirs are the most important exploration target in the sheng li oilfield. Most of the kiloton product wells in sheng li oil field are buried hill reservoir. However, there are many problems in the exploration. For example, complexity of the buried hill tectonic evolution, distributing rule of the buried hill structural crack, conditions of the oil-gas accumulation is very complicated. Whether we can avoid the multisolution brought from individual technique, find a series of methed and course to predict the buried hill reservoir and interpret the inner structural. Whether we can improve the prediction precision, and therefore reduce the drilling risk or not, has becomed the key technique which restrict the oil exploration in buried hill.we should Improve the accuracy of hydrocarbon reservoir prediction,and thus provide the believable predict result for the exploration of burial hill.In this thesis, discuss the composive prediction method in chegu201 buried hill. First, Based on the analysis of geologic material,the strata and reservoir of Well Chegu 201 is demarcated using well data and the demarcation result is that the burial hill reservoir is divided into three set vertically. The evolutionary process is classified into four tectonic stages according to the influence on the burial hill forming of Chegu 201 caused by tectonic movement at different stage.Grounding on study of geology and well logging data. Expounded the basic principles of seismic energy absorption analysis, seismic inversion technique, edge detect method with little wave, coherence technique, seismic attribute analysis technique, seismic facies analysis technique, forword and inverse tectonic simulation method. And apply all these techniques to predict fracture reservoirs in chegu201 area of shengli Oilfield. The distribution and thickness of the Paleozoic fracture reservoir in buried-hill was predicted successfully, and the good geologic results provided reliable basis for reporting the proved reserves. The method can avoid the multisolution brought from individual technique, and can improve the prediction precision, and therefore reduce the drilling risk. It also offered a reference research method for the reservoir prediction of other similar areas. Through the contrast of various methods of Reservoir Prediction in Buried Hil, we found the seismic inversion technique, Expounded the basic principles of seismic energy absorption analysis, forword and inverse tectonic simulation method have good result. The reservoir thickness is predicted based on the integration of multi-techniques, and the predict result shows that the oil-bearing area in Badou formation of Ordovician is 10 square kilometers,and the average effective thickness is about 40 meters. The calculation result in Fengshan formation is that the favorable oil-bearing area is about 8 square kilometers and the effective thickness is 50 meters.更多还原