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石油与天然气化工
CHEMICAL ENGINEERING OF OIL GAS
微生物驱油产出液循环利用方法研究
付颖12俞理”修建龙”马淑芬”严力5
1.中国科学院大学2.中国科学院渗流流体力学研究所3.中国石油勘探开发研究院渗流流体力学研究所
4.中国石油华北油田分公司储气库管理处5.中国石油青海油田分公司采油三厂
2017
摘要为了探究新疆油田六中区微生物驱油现场产出液循环利用的可行性，在对产出液组成及浓度分析研究的基础上，利用物理模拟方法研究了产出液直接回注、添加营养后注入、地面扩大培养注入以及注入新油藏4种产出液循环利用方式对驱油效果的影响。实验表明，产出液中营养浓度仅为注入浓度的10%左右，已不能满足直接注入要求，需要添加营养才能进一步提高采收率。4种产出液循环利用方式对比发现：有益菌及代谢产物都可以循环利用，产出液地面扩大培养后驱油效果最好，菌浓达到2.1X10°cfu/mL，表面张力由71.6mN/m降低至55.9mN/m，提高采收率14.2%。该研究能够进一步降低驱油剂成本并为产出液循环利用提供参考。
关键词微生物驱油循环驱油效果提高采收率注入成本
中图分类号：TE357.9
文献标志码：B
D0I:10.3969/j.issn.1007-3426.2017.04.014
Studyofthemethodsforrecyclingproducedfluidin
microscopicoildisplacement
Fu Ying' 2,Yu Li' ,Xiu Jianlong' ,Ma Shufen' , Yan Li
1. Uniuersity of Chinese Academy of Science, Beijing+ China; 2. Institute of Porous Flour & Fluid Mechanics Unirersity of Chinese Academy of Science, Langfang, Hebei, China; 3. Institute of Porous Flow & Fluid Mechanics, PetroChina Research Institute of Petroleum Exploration and Development , Langfang Hebei, China:
4. Authority of UGS Management, PetroChina Huabei Oilfield Company , Renqiu, Henan, China; 5. The Third Oil Production Plant, PetroChina Qinghai Oilfield Company, Haixi, Qinghai, China
Abstract : In order to explore the feasibility of recycling on-site produced fluid in microscopic oil displacement in Xinjiang oilfield, based on the research of the composition and concentration of produced fluid , the method of physical simulation was used to research the oil displacement efficiency of four produced fluid injection methods : injecting produced fluid into the core without adding any nutrition , adding nutrition to produced fluid , adding nutrition to produced fluid and then cultivating it on the ground, and injecting produced fluid into a new core . Experimental results show that the nutrition concentration of produced fluid was just lo% of injecting fluid and can not meet the requirement of direct re-injection. Therefore, it needed adding nutrition to enhance oil recovery further . Comparing four produced fluid injection methods , it shows that the bacteria and metabolites of produced fluid can be recycled , and produced fluid injection method of adding nutrition to produced
基金项目：国家高新技术研究发展计划(863)项目"中低温油藏微生物定向激活与模拟技术研究"（2013AA064402）：中石油科
学研究与技术开发项目“微生物驱油技术研究与应用”(2016B-1106)。
作者简仑：付额（1990-），女，四川德阳人，2013年获西南石油大学学士学位，现为中科院渗流流体力学研究所硕士研究生，主要研究方向为微型物捷高采收率。E-mail;mzfuying126.com