采收率

High-concentration polymer flooding is a new EOR technique, but the viscoelasticity stability and displacement efficiency of high-concentration polymeric system are the main problem that needs to be solved in production.

高浓度聚合物驱油技术是一种新型的大幅度提高原油采收率的方法，但是高浓度聚合物体系的私度稳定性及体系的驱油效果是目前矿场需要了解的问题。

The characters and mechanisms of imbibition in porous media are fully discussed in this paper.

本文系统地论述了渗吸作用的研究方法、类型、物理特征和机理，深入研究了表面活性剂对渗吸过程的影响及其在提高裂缝性低渗透油藏采收率中的应用。

Therefore appropriate amount of Ca(superscript 2+) or 504 (superscript 2-) can improve chemical imbibition and recovery factor of core.

添加适量的Ca(上标 2+)或SO4(上标 2-)，可以促进岩心的化学渗吸，从而提高岩心渗吸采收率。

Many factors affect the process of spontaneous imbibition.This paper is focused on the effect of initial water saturation and rock lithology on rate of imbibition and oil recovery.

影响自吸的因素有很多，文中主要研究束缚水饱和度和岩石性质对自吸速度及采收率的影响。

Making use of seismic data is able to characterize reservoir, and to improve reservoir management during the development of new fields as well as the infilling well and enhanced oil recovery in old fields. Seismic technique has now extended into production phase from exploration phase.

无论是开发新的油气田，还是在老的油田钻加密井、扩边井，乃至提高油气采收率，使用地震资料均能够较完整地刻画油藏的特征，改善油藏管理，为了适应油气田开发和开采的需要，地震技术已从勘探领域延伸到开发领域，正在逐渐形成一门新的学科——开发地震。

Since there\'s inlayer heterogeneity in layered sandstone reservoirs and remaining oil potentials are mainly in thin or poor layers, which are mostly in delta front facies growth, this paper studies physical characteristics parameters interpretation methods for delta front deposit reservoirs to deepen the acknowledge to the depositional modes and features for further implementing the develop adjustment potentials and optimizing the potential tapping adjustment patterns. This practice has an important guiding sense to enhance the ultimate production recovery for mature oilfields.

我国大多数主力油田都属于陆相河流—三角洲沉积储层，如大庆的喇嘛甸、萨尔图和杏树岗等油田，这些油田基本上均已进入高含水后期开采阶段，尤其是以河流相发育为主的主力油层综合含水已达到90%以上，由于多油层砂岩油田存在层间的非均质性，油田的剩余油潜力主要集中在以三角洲前缘相发育为主的薄、差油层中，因此研究三角洲前缘相沉积储层的物性参数解释方法，深化其沉积模式及沉积特征的认识，进而落实油田开发调整潜力，优化调整挖潜方式，对提高老油田最终采收率具有重要的指导意义。

This article is based on the material balance equation and the no fixed water inroad equation,educe the equation of the no water recovery and the water coming time.

以物质平衡方式和不定态水侵公式等油藏工程理论为基础，得出无水期采收率和油藏见水时间的计算公式。

Water injected reservoir ; Water coming time ; Recovery ; Water inroad ; Parameter

注水油藏；见水时间；采收率；水侵；参数

In this paper, the reasons leading to poor development effects of Chaoyanggou low-permeability oilfield are analyzed, the relational expressions between recovery efficiency and well spacing density, considering the start-up pressure, are given. In the paper, the water flooding control degree, lower limit of reservoir permeability, effectively driving factor, and other parameters are studied, and their influence on the well spacing density is presented.

中文摘要：摘要：本文分析了大庆朝阳沟低渗透油田开发效果差的主要原因，给出了考虑启动压力条件下，采收率与井网密度的关系式；研究了水驱控制程度、油藏渗透率下限、有效驱动系数等参数对井网密度的影响；确定了朝阳沟油田合理井网密度界限。

Miscible displacement is a very important technology of EOR.

混相驱技术是提高原油采收率的一种非常重要的方法。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。