【作者】 陈方文；

【导师】 卢双舫；

【作者基本信息】 大庆石油学院 ， 矿产普查与勘探， 2009， 硕士

【摘要】 为指导榆树林油田葡萄花油层下一步勘探与开发,首先在前人研究成果的基础上运用高分辨率层序地层学的原理和方法将研究区葡萄花油层划分为3个三级层序和6个体系域;然后结合岩心、测井、录井等资料建立各沉积微相的测井相模式,以此识别每口井各个体系域的沉积微相,并在井震相结合的基础上指导绘制各体系域沉积微相平面图;其次充分利用已有的岩性、物性及地震解释资料在沉积相的约束下进行大范围、大尺度的储层物性建模,试探性预测储层物性;最后总结油气富集规律。在研究中得到以下认识:(1)储层物性建模显示孔隙度、渗透率的高值区大致由北向南呈不连续的条带状分布,对预测有利钻探目标具有一定的指导作用;(2)油气主要分布于葡萄花油层的中下部,在凹陷边缘多为油水同层,在斜坡带多显示为油层,在构造高点则显示为差油层,油藏类型以岩性上倾尖灭油气藏和断块遮挡油气藏为主;(3)断层具有输导和封闭油气的双重作用,对油气成藏至关重要,断层在活动期主要表现为垂向输导作用,在静止期主要表现为侧向封闭性;(4)油气运移路线是由凹陷中心向东北方向运移,受尚家鼻状构造和尚南小隆起的影响,运移路线在树115附近分为南北两支,分别向尚家鼻状构造和尚南小隆起内充注;(5)对研究区葡萄花油层预测两个有利区:①树12断块进行扩边钻探;②树105以西断块空白区预测。更多还原

【Abstract】 In order to guide the exploration and development of Putaohua reservoir in Yushulin oilfield, firstly divide it into there third-order sequences and six system tracts with high resolution sequence stratigraphy base on research findings of predecessor; secondly integrate core, wireline logging and mud logging data to install logging facies model of each microfacies, use them to identify microfacies in six system tracts of every well, and drafting map of sedimentary microfacies of each system tracts base on combining well and seismic data; and then make full use of lithology, physical properties and seismic interpretation to install macroscopy and large scale physical property model of reservoir, and to predict reservoir properties; lastly summarize oil-gas accumulation regulation. In the study derive several conclusions by the following. (1) Physical property model of reservoir shows that the high value block of porosity and permeability are noncontinuous zonal distribution nearly from north to south. It plays a guiding role to forecast drilling target. (2)Oil and gas is mainly distributed in the mid-lower of Putaohua formation. It is mainly oil-water layers in the sag edge, mainly oil layers in slope zone, and mainly poor oil layers in high construction. Up pinch-out reservoir and fault shelter reservoir are the main reservoir type. (3)Fault can transport oil and gas, but also seal them. It is essential for hydrocarbon accumulation. Fault is mainly expressed the role of vertical translocation when it is in active stage, but lateral seal in resting stage. (4)The hydrocarbon migration route is from the sag center to northeast direction. Because of the effect of Shangjia nose-like structure and small Shangnan uplift, the hydrocarbon migration route divides into north and south direction near Tree-115 well, separately migration into the two high construction. (5)Predict two favorable areas in Putaohua formation in the study area.更多还原