| 1. | Shut - in for soaking is an indispensable process during steam stimulation
摘要关井焖井是稠油油藏蒸汽吞吐开采中的一个必要环节。 |
| 2. | The results have indicated that the recovery efficiency of hot - water injection can be increased by 15 . 69 % over that of steam stimulation
结果表明，注热水开发可在蒸汽吞吐开发基础上提高采出程度15 . 69 % 。 |
| 3. | In consideration of the characters of heavy oil reservoirs in block mian 120 , the mechanism of nitrogen - assisted steam stimulation is studied
摘要针对面120块稠油油藏特点，开展了氮气辅助蒸汽增产机理研究。 |
| 4. | After almost 20 years of development , lower interval of du66 block has come to a later stage of steam stimulation , with the formation pressure lower and the steam stimulation effects poorer
经过近20年的蒸汽吞吐开发，杜66块下层系目前已进入吞吐开发后期，地层压力低，吞吐开发效果差。 |
| 5. | A viscosity - temperature model of cumulative steam injection rate and cumulative oil production has been established for cyclic steam stimulation stage according to the standard viscosity - temperature curve of american material experiment society
摘要根据美国材料试验学会制定的标准粘温关系曲线，建立蒸汽吞吐阶段累计注汽量与累计产油量之间的粘温模型。 |
| 6. | The 1owing material balance method , a new method for reservoir engineering dynamic analysis , is presented and applied to the well test analysis of heavy oil steam stimulation , calculating the heating radius and formation contaminant factor in this paper
摘要介绍了一种新的油藏工程动态分析方法流动物质平衡方法，并将该方法应用于稠油蒸汽吞吐试井分析，计算出加热半径和地层污染系数。 |
| 7. | The results of reserch work show that the area of ca012 , ca031 , ca060 and the area near the shi - cun faultage are adventage exploratory targets . the succeed possibillity is bigger . but it has the high venture in all . it is suggested to frac - pack , to drill directional well to test oil in steam stimulation
研究结果表明：位于火山口附近的草12井区和草31井区、草60井区、石村断层附近是比较有利的勘探目标，勘探成功的可能性较大，建议利用压裂引效、钻定向井的方法进行热采试油，并开展全区测井约束地震反演，对油气成藏进行更全面的评价。 |
| 8. | Through analyzing the effect of temperature and nitrogen on crude oil viscosity the influences of different nitrogen injection volume and injection modes on steam displacement are contrasted , the mechanism of nitrogen - assisted steam stimulation is clarified , which includes : heat carrying capacity is raised , the saturation of remaining oil is reduced after nitrogen - assisted injection is made ; crude oil flow is enhanced because of nitrogen compression and dispersion and the change of oil flow shape ; water back - production rate is improved by expanding the steam sweep volume and compensating in - situ energy ; steam distillation effect is enhanced
通过分析温度、氮气对原油粘度的影响，对比不同注氮量、不同注入方式等对蒸汽驱油效果的影响，弄清了氮气辅助蒸汽增产的机理主要表现在：氮气辅助后增加携热能力，降低残余油饱和度，氮气的压缩膨胀作用分散和改变了原油流动形态，增强了原油流动性；扩大蒸汽的波及体积，补充地层能量，提高回采水率，强化蒸汽蒸馏效应。 |
| 9. | According to the reservoir conditions and fluid properties , a systematic feasibility study of hot - water injection development is conducted by using a numerical technique for lower interval of du66 block in three aspects : ( 1 ) adaptability of hot - water injection development ; ( 2 ) distribution of residual oil in a later stage of steam stimulation ; and ( 3 ) potential of hot - water injection development
根据杜66块下层系油藏条件及地层流体性质，从注热水开发油藏适应性、吞吐后期剩馀油分布规律和注热水开发潜力等3个方面，利用数值模拟技术对杜66块下层系注热水开发可行性进行了系统研究。 |
