特低渗透油田复合热载体吞吐室内试验

察兴辰; 刘帅; 贾慧敏; 陈楠

doi:10.11911/syztjs.201405020

特低渗透油田复合热载体吞吐室内试验

1.
提高油气采收率教育部重点实验室(东北石油大学), 黑龙江大庆 163318;
2.
中国石油辽河油田分公司沈阳采油厂, 辽宁盘锦 124008

基金项目:

国家科技重大专项"CO₂提高油田动用率和采收率技术"（2008ZX05016-004）资助。

详细信息

作者简介:
察兴辰（1988—），男，山东鄄城人，2012年毕业于东北石油大学石油工程专业，在读硕士研究生，主要从事低渗透油田开发、提高原油采收率方面的研究。

中图分类号: TE357.46⁺9
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出版历程
- 收稿日期: 2014-03-07
- 修回日期: 2014-08-10
- 刊出日期: 1899-12-31

Lab Experiment of Huff and Puff Effect of Combined Thermal Carrier in Ultra-Low Permeability Oilfields

1.
Key Laboratory of Enhanced Oil & Gas Recovery of Ministry Education, Northeast Petroleum University, Daqing, Heilongjiang, 163318, China;
2.
Shenyang Oil Production Plant, PetroChina Liaohe Oilfield Company, Shenyang, Liaoning, 124008, China

摘要

摘要: 为解决某特低渗透油藏开发难度大、采用常规开采方式采收率低的问题，在模拟地层条件下，进行了5种热流体含量的复合热载体吞吐室内试验，分析了热流体含量对复合热载体吞吐采收率、含水率、气油比、注入能力等指标的影响，评价了5种热流体含量复合热载体吞吐的效果。结果表明：复合热载体吞吐对于开采该油藏具有非常好的效果，但其效果与热流体含量、吞吐周期有关；在同样条件下，随着复合热载体中热流体含量的增大和吞吐周期的增多，采收率先升高后降低、含水率升高、气油比先降低后升高、注入能力降低。这表明对于特定油藏，在进行复合热载体吞吐设计时应首先进行室内试验，根据室内试验结果选择复合热载体的最佳热流体含量和吞吐周期。
- 特低渗透油气藏 /
- 复合热载体 /
- 热流体含量 /
- 采收率 /
- 实验室试验
Abstract: To solve the difficulties of low recovery and reservoir development in ultra-low permeability reservoirs using conventional methods,reservoir simulations using "huff and puff" enhanced oil recovery method were conducted.The lab experiments which combined thermal carriers were carried out with five thermal fluid contents in a way that simulated the formations.The effect of five thermal fluid contents on the recovery,water cut,gas-oil ratio,injection capacity of the combined thermal carrier huff and puff was analyzed.It is shown that the combined thermal carrier huff and puff has a very good effect on the reservoir exploitation,but the effect is related to the thermal fluid content,as well as the huff and puff cycle.When the thermal fluid content increased in a combined carrier and huff and puff cycle,the recovery first increased and then decreased,the water cut increased,and the gas-oil ratio first decreased and then increased,and the injectivity decreased under the same conditions.Results suggest that there is a best thermal fluid content and huff and puff cycle for each individual reservoir.Therefore,lab experiments suggest that it is important to choose the best thermal fluid content and analyze the huff-puff cycle of combined thermal carrier before designing the huff-puff effect of combined thermal carrier.
- ultra-low permeability reservoir /
- combined thermal carrier /
- thermal fluid content /
- recovery factor /
- lab experiment

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