红岗油田萨尔图南部复合井网剩余油分布研究
发布时间：2018-09-03 12:28
【摘要】：红岗油田萨尔图油藏南部为2004年开始相继进行井网加密,形成反五+反七+反九点注水井网模式,该井网模式在加密后初期取得一定的效果,但是后期分层产出状况、分层注采关系认识难度很大,导致平面矛盾凸显,含水快速上升,大量油井关停,产量快速递减。油井再次动用难度大,挖潜难度大,难以做到有的放矢。本次根据2006年地质建模的研究成果,将后期新钻井40口的小层进行精细划分对比,形成可用的数据体。将新井的小层数据导入原有的地质模型中,并且将原模型的平面网格由50×50米细化为30×30米,生成新的完善的地质数据体,内容包括小层厚度、孔隙度、渗透率、泥质含量、含油饱和度、含水饱和度、净毛比。将细化后的地质模型进行粗化,符合开展数值模拟的条件。通过采用Eclipse方法进行数值模拟,将Eclipse的解释结果进行剩余油分布预测及定量化描述。数值模型建立后研究探寻各个小层剩余油分布的主要位置,分析探索目前影响剩余油分布的主控因素是储层的非均质性强。并且为了对研究成果的可靠性进行验证,对剩余油富集部位实施挖潜措施,取得了很好的效果。
[Abstract]:In the south of Saltu reservoir of Honggang Oilfield, the well pattern was infilled successively in 2004, forming the anti-five anti-seven anti-9-point pattern of water injection well pattern. The pattern of well pattern obtained certain effect at the initial stage of infilling, but in the late stage of stratified production, The recognition of stratified injection-production relationship is very difficult, which leads to the prominent plane contradiction, the rapid rise of water cut, the closure of a large number of oil wells, and the rapid decline of production. Oil wells are difficult to produce again, difficult to tap potential, difficult to achieve targeted. According to the research results of geological modeling in 2006, this paper makes fine division and comparison of 40 layers of new drilling in the later stage to form the usable data body. The small layer data of the new well are introduced into the original geological model, and the plane grid of the original model is refined from 50 脳 50 meters to 30 脳 30 meters to form a new and perfect geological data body, which includes the thickness of the layer, porosity, permeability, mud content, etc. Oil saturation, water saturation, net wool ratio. Coarsening the refined geological model accords with the condition of numerical simulation. The residual oil distribution is predicted and quantitatively described by Eclipse method. After the numerical model was established, the main location of residual oil distribution in each sublayer was explored, and the main controlling factor affecting remaining oil distribution at present was the strong heterogeneity of reservoir. And in order to verify the reliability of the research results, the remaining oil enrichment site of the implementation of potential tapping measures, achieved good results.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE327
本文编号：2219982
[Abstract]:In the south of Saltu reservoir of Honggang Oilfield, the well pattern was infilled successively in 2004, forming the anti-five anti-seven anti-9-point pattern of water injection well pattern. The pattern of well pattern obtained certain effect at the initial stage of infilling, but in the late stage of stratified production, The recognition of stratified injection-production relationship is very difficult, which leads to the prominent plane contradiction, the rapid rise of water cut, the closure of a large number of oil wells, and the rapid decline of production. Oil wells are difficult to produce again, difficult to tap potential, difficult to achieve targeted. According to the research results of geological modeling in 2006, this paper makes fine division and comparison of 40 layers of new drilling in the later stage to form the usable data body. The small layer data of the new well are introduced into the original geological model, and the plane grid of the original model is refined from 50 脳 50 meters to 30 脳 30 meters to form a new and perfect geological data body, which includes the thickness of the layer, porosity, permeability, mud content, etc. Oil saturation, water saturation, net wool ratio. Coarsening the refined geological model accords with the condition of numerical simulation. The residual oil distribution is predicted and quantitatively described by Eclipse method. After the numerical model was established, the main location of residual oil distribution in each sublayer was explored, and the main controlling factor affecting remaining oil distribution at present was the strong heterogeneity of reservoir. And in order to verify the reliability of the research results, the remaining oil enrichment site of the implementation of potential tapping measures, achieved good results.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE327
【参考文献】
相关期刊论文 前1条
1 王友净;宋新民;顾斐;陈能学;;高尚堡深层北区沙三段二、三亚段沉积特征与砂体结构[J];油气地质与采收率;2010年02期
，本文编号：2219982
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