[1]李晓南,顾 骁,王智林,等.低渗透稠油油藏CO2降黏剂复合驱优选评价及矿场试验[J].复杂油气藏,2022,15(02):84-89.[doi:10.16181/j.cnki.fzyqc.2022.02.014]
 LI Xiaonan,GU Xiao,WANG Zhilin,et al.Optimal evaluation and field test of CO2-viscosity reducer compound flooding for low-permeability heavy oil reservoirs[J].Complex Hydrocarbon Reservoirs,2022,15(02):84-89.[doi:10.16181/j.cnki.fzyqc.2022.02.014]
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低渗透稠油油藏CO2降黏剂复合驱优选评价及矿场试验()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
15卷
期数:
2022年02期
页码:
84-89
栏目:
油气开发
出版日期:
2022-06-25

文章信息/Info

Title:
Optimal evaluation and field test of CO2-viscosity reducer compound flooding for low-permeability heavy oil reservoirs
作者:
李晓南顾 骁王智林黄 菊陈其荣巢忠堂
中国石化江苏油田分公司勘探开发研究院,江苏 扬州 225009
Author(s):
LI XiaonanGU XiaoWANG ZhilinHUANG JuCHEN QirongCHAO Zhongtang
Exploration and Development Research Institute of Jiangsu Oilfield Company,SINOPEC,Yangzhou 225009,China
关键词:
低渗透油藏稠油油藏CO2降黏剂复合驱降黏率驱油效率矿场试验
Keywords:
low permeability reservoirheavy oil reservoirCO2-viscosity reducer compound floodingviscosity reduction rateoil displacement efficiencyfield test
分类号:
TE348
DOI:
10.16181/j.cnki.fzyqc.2022.02.014
文献标志码:
A
摘要:
低渗稠油油藏普遍存在自然产能低,注水井压力高、注不进,注水沿压裂缝方向推进,含水上升快等问题。以低渗稠油油藏Z13为例,开展了CO2降黏剂复合驱技术研究。通过降黏剂性能评价优选出降黏剂KD-45A,再结合长岩心驱替实验,明确降黏剂段塞对体系性能及复合驱效果的影响,总结复合驱相比单一驱替方式的增效机理。实验结果显示:降黏剂KD-45A在降低黏度、油水界面张力等方面有较好的效果,其浓度达到0.3%以上时,降黏率达到96%;降黏剂能有效提升CO2驱的驱油效率,每0.1 PV的降黏剂大约可以提升2%的采收率,但超过0.2 PV,降黏剂作用明显减小;前置段塞体积对减缓突破时机的影响不大;注入压力变化随前置段塞体积的增加而增大,但超过0.2 PV后变化不大。在Z13-8井组的现场试验取得较好的增油降水效果,对同类型油藏的开发具有指导意义。
Abstract:
There are many problems in low-permeability heavy oil reservoirs,such as low natural productivity,high pressure in water injection wells,no water injection,water injection advancing along the direction of fracture,rapid water-cut rise,and so on. Taking the Z13 low-permeability heavy oil reservoir as an example,studies were carried out on CO2-viscosity reducer compound flooding technology. The viscosity reducer KD-45A was selected through a performance evaluation experiment,and then,combined with long core flooding experiments,the effect of the viscosity reducer slug on system performance and compound flooding effect was clarified. Finally,compared with the single flooding method,the increased oil recovery mechanism of compound flooding was summarized. The experimental results show that the viscosity reducer KD-45A has a good effect on reducing viscosity and oil-water interfacial tension. When the concentration of viscosity reducer is more than 0.3%,the viscosity reduction rate reaches 96%;each 0.1 PV of viscosity reducer can increase the recovery factor by about 2%,but if it exceeds 0.2 PV,the effect of the viscosity reducer is significantly reduced;the volume of the lead slug has little effect on the degree of slowing the breakthrough timing;the change of injection pressure increases with the increase of the volume of the lead slug,but it does not change much after exceeding 0.2 PV. In the field test of the Z13-8 well group,good increasing oil and reducing water effects have been obtained,which has guiding significance for the development of the same type of reservoir.

参考文献/References:

[1]韩冬,沈平平.表面活性剂驱油原理及应用[M],北京:石油工业出版社,2001.
[2]张绍东,束青淋,张本华,等.河道砂常规稠油油藏特高含水期聚合物驱研究与实践[M].北京:石油工业出版社,2005.
[3]张润芳,王纪云,张燕.古城油田B125断块表面活性剂驱技术[J].石油钻采工艺,2005,27(4):51-53.
[4]李豪浩,毕雯雯,胥晓伟,等.中深层特超稠油HDCS强化采油技术研究[J].特种油气藏,2013,20(2):87-89.
[5]朱静,李传宪,辛培刚.降黏剂结构对稠油降黏效果的影响[J].石油化工高等学校学报,2011,24(3):39-42.
[6]魏超平,李伟忠,吴光焕,等.稠油降黏剂驱提高采收率机理[J].油气地质与采收率,2020,27(2):131-136.
[7]张娟.浅薄稠油油藏水平井二氧化碳吞吐数值模拟研究[D].成都:西南石油大学,2012.
[8]邓宏伟.超深层低渗透稠油CO2增溶降黏体系研发与应用[J].油气地质与采收率,2020,27(1):81-88.
[9]王一平,孙业恒,吴光焕,等.超深层稠油二氧化碳吞吐渗流规律[J].特种油气藏,2017,24(4):142-146.
[10]胡野,李兆敏,李莹,等.普通稠油二氧化碳降黏剂复合开采研究[C]//2020油气田勘探与开发国际会议论文集,2020:1110-1119
[11]张勇,杨寨,沈燕来.绥中36-1油田稠油聚合物降黏剂的研究[J].江汉石油学院学报,2002,24(4):65-66.
[12]郭宇.耐温抗盐型复合表面活性剂驱油体系的合成及应用[J].断块油气田,2018,25(2):258-261.
[13]李剑,段景杰,姚振杰,等.低渗透油藏水驱后注CO2驱提高采收率影响因素分析[J].非常规油气,2017,21(6):45-52.
[14]张新宁,黄敬上.双河油田Ⅳ5~11层系三元复合驱前置段塞深度调剖效果分析[J].石油地质与工程,2018,32(3):80-82.
[15]杨森,许关利,刘平,等.稠油化学降黏复合驱提高采收率实验研究[J].油气地质与采收率,2018,25(5):80-86,109.

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备注/Memo

备注/Memo:
收稿日期:2021-05-24;改回日期:2021-07-13 。第一
作者简介:李晓南(1980—),硕士,高级工程师,现从事提高采收率研究工作。E-mail: lixnan.jsyt@sinopec.com。
基金项目:江苏省博士后科研资助计划(A类)“江苏油田复杂断块油藏CO2气顶与人工边水组合驱替技术研究”(1801015A)。
更新日期/Last Update: 2022-06-25