【作者】 张百忍；

【导师】 刘大锰；

【作者基本信息】 中国地质大学（北京） ， 油气田开发工程， 2009， 硕士

【摘要】 升平油田区域构造位置处于松辽盆地中央凹陷的东北部。本论文在层序地层学、沉积学理论指导下,着重研究了扶余组的沉积相和沉积微相,并且弄清了研究区目的层的油水分布规律,明确了砂体的空间展布,并预测了有利储集体的分布,取得了以下主要的认识和成果:(1)通过对研究区100余口钻井录井数据、测井曲线等资料分析,在对单井沉积相及各个微相分析研究的基础上,发现扶余3、扶余2油层主要发育了曲流河沉积,而扶1油层主要发育了三角洲平原亚相。(2)研究区未被断层分化的地段内,油水垂向上基本按重力分异作用分布,剖面上是上油、中同、下水,平面上则是高部位含油、低部位含水。由于油、水层层位不一致,砂体分布的不连续性,断层的切割和错动作用而造成升平构造鼻顶的构造—岩性油气藏内油水界面不连续和高低不一的现状,全油田没有统一的油水界面。(3)利用Jason方法对研究区扶余油组分油层进行了全区反演,结果表明该区上下存在速度差异,并采用了不同的波阻抗门槛值进行砂岩估算。空白区储层物性非均质性很强,北部砂岩厚度及孔渗明显好于东部和西部。(4)在沉积相对比划分、储层预测的砂体厚度以及有效厚度的展布规律、孔隙度、渗透率等非均质性研究以及成藏规律和油水界面的识别的基础上,采用多层次模糊数学与PetreL软件平台相结合的方法,综合利用沉积微相、砂岩总厚、有效砂厚、孔隙度、渗透率及含砂率等6项指标,将研究区储层有利分布区划分4个区块:升66区块、升深6区块、芳29区块、升163区块,并对有利区块进行了综合分析。更多还原

【Abstract】 Shengping oilfield is located in the northeast of central depression of Songliao basin. Under the guide of sedimentology and sequence stratigraphy, this paper studies the sedimentary facies and sedimentary micro-facies and makes it clear that the oil-water distribution and sand boy distribution, and forecasts the favorable reservoir distribution. Research results are achieved as following.1. Based on the analysis of the data of drilling and logging curves more than 100 wells and researching on the sedimentary facies and microfacies of single well, the reservoir of Fuyu 3 and Fuyu 2 oil layers deposited in meandering river, while Fuyu 1 oil layer accumulated in delta plain facies.2. In the section undivided by faults, the distribution of oil and water is controlled by gravitational differentiation. The oil lies on the top and the water is at bottom and oil-water layer in the middle of oil reservoir profile. Because of inconsistency of the oil and water layers, the sand body distribution and fault cutting, the oil-water interface in the structure is discontinuous as well. There is not uniform oil-water interface in the oil field.3. Jason software was used to inverse the Fuyu oil layers in the whole region. The results show there exists speed difference between the upper and the lower in the area and the threshold value of sandstone estimated by using the different acoustic impedance. The reservoir heterogeneity is very high. The thickness, porosity and permeability of sandstone in the north are significantly better than those in the east and west.4. Based on the analysis of sedimentary microfacies, sand body thickness and effective thickness, porosity, permeability, heterogeneity and oil-water distribution using analytic hiberarchy fuzzy mathematics and PetreL software platform, the favorable reservoir areas have been divided into four blocks: Block Sheng 66, Block Shengshen 6, Block Fang 29 and Block Sheng 163.更多还原