[1]吕端川,林承焰,任丽华,等.五点式井网内剩余油饱和度变化特征——以杏六区东部三元复合驱井组为例[J].复杂油气藏,2020,13(03):51-56.[doi:10.16181/j.cnki.fzyqc.2020.03.011]
　LYU Duanchuan,LIN Chengyan,REN Lihua,et al.Variation characteristics of remaining oil saturation in five-point well pattern:Taking ASP flooding well group in eastern of X6th block as an example[J].Complex Hydrocarbon Reservoirs,2020,13(03):51-56.[doi:10.16181/j.cnki.fzyqc.2020.03.011]
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五点式井网内剩余油饱和度变化特征——以杏六区东部三元复合驱井组为例()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
13卷
期数:
2020年03期
页码:
51-56
栏目:
油气开发
出版日期:
2020-09-25

文章信息/Info

Title:
Variation characteristics of remaining oil saturation in five-point well pattern:Taking ASP flooding well group in eastern of X6th block as an example
作者:
吕端川1; 2; 林承焰1; 2; 任丽华1; 2; 狄喜凤1; 2; 宋金鹏3
1.中国石油大学（华东）地球科学与技术学院，山东 青岛266580；2.山东省油藏地质重点实验室，山东 青岛266580；3.中国石油塔里木油田分公司勘探事业部，新疆 库尔勒841000
Author(s):
LYU Duanchuan1; 2; LIN Chengyan1; 2; REN Lihua1; 2; DI Xifeng1; 2; SONG Jinpeng3
1. School of Geosciences，China University of Petroleum （East China），Qingdao 266580，China；2. Reservoir Geology Key Laboratory of Shandong Province，Qingdao 266580，China；3. Exploration Department of PetroChina Tarim Oilfield Company，Kuerle 841000，China
关键词:
杏六区东部; 三元复合驱; 五点式井网; 剩余油饱和度; 变化规律
Keywords:
eastern of X6th block; ASP flooding; five-point well pattern; remaining oil saturation; change law
分类号:
TE343
DOI:
10.16181/j.cnki.fzyqc.2020.03.011
文献标志码:
A
摘要:
为了精细表征大庆油田三元复合驱后规则五点式井网内剩余油饱和度的变化规律，选取杏六区东部葡萄花油层PI组PI33单砂体，利用取心井密集取样测试资料、生产动态数据对其进行分析，结果显示：中高渗储层在复合驱后剩余油饱和度主要集中在20%～30%；单井剩余油饱和度纵向上表现为顶部高值和底部低值；复合驱油剂在井网内不同位置的洗油效率存在差异；重力及储层内压力分布对驱油剂的流动路径及渗流特征影响是造成剩余油饱和度变化差异的主要因素。在后期挖潜阶段需寻找适合的开采措施，以提高目前低效扫油区内剩余油的动用程度。
Abstract:
In order to finely characterize the change of remaining oil saturation in the regular five-point well pattern after alkaline surfactant polymer（ASP）flooding in Daqing Oilfield，based on the data of coring well intensive sampling test and production performance from PI33 single sand body of PI oil group in Putaohua oil layer of eastern of X6th block，the variation law and controlling factors of remaining oil saturation after ASP flooding were determined in detail.The results show that the remaining oil saturation of medium and high permeability reservoirs is mainly concentrated in the range of 20% - 30% after ASP flooding；the remaining oil saturation of a single well is characterized by high value at the top and low value at the bottom in the vertical direction；there are differences in oil washing efficiency of ASP flooding injection agent at different locations in the well pattern；the influence of gravity and pressure distribution in the reservoir on the flow path and seepage characteristics of the oil displacing agent are the main factors that cause the difference in remaining oil saturation. In the later stage of tapping the potential，it is necessary to find suitable recovery measures to increase the utilization of the remaining oil in the current low-efficiency sweeping area.

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备注/Memo

备注/Memo:
收稿日期：2020-04-09；改回日期：2020-05-22。第一作者简介：吕端川（1987—），在读博士，研究方向为地质资源与地质工程。E-mail：duan227@126.com。基金项目：国家科技重大专项“大庆长垣特高含水油田提高采收率示范工程”（编号：2016ZX05054)。
更新日期/Last Update: 2020-09-30