油气藏评价与开发 >
2020 , Vol. 10 >Issue 6: 78 - 84
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2020.06.012
适用于双河油田聚驱后油藏的非均相复合驱油体系研究
收稿日期: 2020-06-09
网络出版日期: 2021-01-07
基金资助
中国石化股份有限公司示范工程“中高渗砂砾岩油藏聚驱后非均相复合驱技术”(P19007-4);中国石化股份有限公司重大专项“聚驱后油藏水驱提高采收率技术”(P16080)
Heterogeneous combination flooding system for reservoir after polymer flooding in Shuanghe Oil Filed
Received date: 2020-06-09
Online published: 2021-01-07
聚合物驱后油藏储层非均质矛盾加剧,剩余油分布更加分散,常规化学驱进一步提高采收率难度大。针对双河油田北块Ⅱx层系聚驱后中高渗透率砂砾岩油藏特点,设计一种由聚合物、黏弹颗粒驱油剂PPG和高效表面活性剂组成的非均相复合体系,开展了驱剂优选、热稳定性评价及注入方式优化。实验结果表明,得到的P/PPG/S非均相复合体系具有高黏弹、超低界面张力的优异性能,热稳定性能良好,能够有效改善储层非均质性,扩大波及体积,同时提高驱油效率。岩心驱油实验表明,模拟油藏条件下,采用P/PPG与P/PPG/S非均相复合体系组合驱替的方式,聚驱后进一步提高采收率27.8 %,从而为双河油田聚合物驱后油藏有效提高采收率提供了一种技术方法。
关键词： 聚驱后油藏; 非均相复合驱油体系; 黏弹性颗粒驱油剂（PPG）; 表面活性剂; 提高采收率
王正欣 , 张连锋 , 杨璐 , 刘艳华 , 卢军 , 张卓 . 适用于双河油田聚驱后油藏的非均相复合驱油体系研究[J]. 油气藏评价与开发, 2020 , 10(6) : 78 -84 . DOI: 10.13809/j.cnki.cn32-1825/te.2020.06.012
For the reservoirs after polymer flooding, the heterogeneity is stronger and the remaining oil distribution is more dispersed, conventional chemical flooding in consequence is difficult to further improve oil recovery effectively. Therefore, a heterogeneous combination flooding system consisting of polymer, preformed particle gel（PPG） and highly effective surfactant has been designed according to the features of medium-high permeability sandstone reservoir in Ⅱx layers of Shuanghe Oil Filed after polymer flooding. Thereafter, the selection of flooding agent, evaluation of thermal stability and Optimization of injection mode have been studied. The experimental results showed that the obtained P/PPG/S system has excellent high viscoelasticity, ultra-low interfacial tension, and thermal stability, which can effectively improve reservoir heterogeneity, expand sweep volume and enhance oil displacement efficiency. Core displacement experiments showed that the oil recovery could further enhance by 27.8 % after the combination flooding of P/PPG system and P/PPG/S system under simulated reservoir conditions. Thus it provides a technical method for effectively enhancing oil recovery after polymer flooding in Shuanghe oilfield.
| [1] | 刘海波. 大庆油区长垣油田聚合物驱后优势渗流通道分布及渗流特征[J]. 油气地质与采收率, 2014,21(5):69-72. |
| [1] | LIU H B. Dominant flowing channels distribution and seepage characteristics after polymer flooding in Daqing oilfield[J]. Petroleum Geology and Recovery Efficiency, 2014,21(5):69-72. |
| [2] | 钟玉龙, 方越, 李洪生, 等. 双河油田聚合物驱后储层参数变化规律[J]. 特种油气藏, 2020,27(3):339-343. |
| [2] | ZHONG Y L, FANG Y, LI H S, et al. Variation of reservoir parameters after polymer flooding in Shuanghe Oilfield[J]. Fault-Block Oil and Gas Field, 2020,27(3):339-343. |
| [3] | 卢祥国, 曹豹, 谢坤, 等. 非均质油藏聚驱提高采收率机理再认识及改善方法[J]. 石油勘探与开发, 2021,48(1):1-8. |
| [3] | LU X G, CAO B, XIE K, et al. Mechanisms of polymer flooding in a heterogeneous reservoir and its improvement method[J]. Petroleum Exploration and Development, 2021,48(1):1-8. |
| [4] | 白琳. 聚合物驱主流线与分流线油藏剩余油特征[J]. 大庆石油地质与开发, 2018,37(2):108-114. |
| [4] | BAI L. Characteristics of the reservoir remained oil in the main and diversion streamlines flooded by the polymer[J]. Petroleum Geology & Oilfield Development in Daqing, 2018,37(2):108-114. |
| [5] | 陈程, 宋新民, 李军. 曲流河点砂坝储层水流优势通道及其对剩余油分布的控制[J]. 石油学报, 2012,33(2):257-263. |
| [5] | CHEN C, SONG X M, LI J. Dominant flow channels of point-bar reservoirs and their control on the distribution of remaining oils[J]. Acta Petrolei Sinica, 2012,33(2):257-263. |
| [6] | 李洪生. 双河油田聚合物驱后微观剩余油分布特征[J]. 西安石油大学学报(自然科学版), 2018,33(3):69-74. |
| [6] | LI H S. Microscopic distribution characteristics of residual oil after polymer flooding in Shuanghe Oilfield[J]. Journal of Xi'an Shiyou University(Natural Science), 2018,33(3):69-74. |
| [7] | 刘煜. 黏弹性颗粒驱油剂注入性能研究[J]. 西安石油大学学报(自然科学版), 2016,31(5):60-63. |
| [7] | LIU Y. Study on injection performance of viscoelastic particle displacement agent(preformed particle gel(PPG))[J]. Journal of Xi’an Shiyou University(Natural Science), 2016,31(5):60-63. |
| [8] | 鲁娇, 彭勃, 李明远, 等. 预交联聚丙烯酰胺分散体系的制备及封堵性能[J]. 石油学报 (石油加工), 2010,2(5):800-805. |
| [8] | LU J, PENG B, LI M Y, et al. Preparation and plugging properties of pre-crosslinked poly acrylamide dispersion[J]. Acta Petrolei Sinica(Petroleum Processing Section), 2010,2(5):800-805. |
| [9] | 崔晓红. 新型非均相复合驱油方法[J]. 石油学报, 2011,32(1):122-126. |
| [9] | CUI X H. A study on the heterogeneous combination flooding system[J]. Acta Petrolei Sinica, 2011,32(1):122-126. |
| [10] | 孙焕泉. 基于储层孔喉匹配的非均相复合驱技术研究与矿场实践——以胜坨油田一区沙二段1-3砂组聚合物驱后单元为例[J]. 油气地质与采收率, 2020,27(5):53-61. |
| [10] | SUN H Q. Research on heterogeneous combination flooding technology based on matching between system and reservoir pore throat and its field application:A case of post-polymer flooding Es21-3 in Sheng1 area, Shengtuo Oilfield[J]. Petroleum Geology and Recovery Efficiency, 2020,27(5):53-61. |
| [11] | 郭兰磊. 聚驱后油藏化学驱提高采收率技术及先导试验[J]. 大庆石油地质与开发, 2014,33(1):122-126. |
| [11] | GUO L L. Chemical EOR technique and pilot test for the oil reservoirs after polymer flooded[J]. Petroleum Geology & Oilfield Development in Daqing, 2014,33(1):122-126. |
| [12] | 曹绪龙. 非均相复合驱油体系设计与性能评价[J]. 石油学报(石油加工), 2013,29(1):115-121. |
| [12] | CAO X L. Design and performance evaluation on the heterogeneous combination flooding system[J]. Acta Petrolei Sinica(Petroleum Processing Section), 2013,29(1):115-121. |
| [13] | 陈晓彦. 非均相驱油剂应用方法研究[J]. 石油钻采工艺, 2009,31(5):85-88. |
| [13] | CHEN X Y. Method study for application of heterogeneous oil displacement agent[J]. Oil Drilling & Production Technology, 2009,31(5):85-88. |
| [14] | 计秉玉, 王友启, 聂俊, 等. 中国石化提高采收率技术研究进展与应用[J]. 石油与天然气地质, 2016,37(4):572-576. |
| [14] | JI B Y, WANG Y Q, NIE J, et al. Research progress and application of EOR techniques in SINOPEC[J]. Oil & Gas Geology, 2016,37(4):572-576. |
| [15] | 张莉, 崔晓红, 任韶然. 聚合物驱后油藏提高采收率技术研究[J]. 石油与天然气化工, 2010,39(2):144-147. |
| [15] | ZHANG L, CUI X H, REN S R, et al. The study on enhanced oil recovery technology in reservoirs after polymer flooding[J]. Chemical Engineering of Oil and Gas, 2010,39(2):144-147. |
| [16] | 刘艳华, 孔柏岭, 肖磊, 等. 特高含水油藏复合驱技术提高采收率研究[J]. 油田化学, 2013,30(4):570-574. |
| [16] | LIU Y H, KONG B L, XIAO L, et al. Study on combination flooding enhanced oil recovery technique in ultra-high water cut reservoir[J]. Oilfield Chemistry, 2013,30(4):570-574. |
| [17] | 廖广志, 王强, 王红庄, 等. 化学驱开发现状与前景展望[J]. 石油学报, 2017,38(2):196-207. |
| [17] | LIAO G Z, WANG Q, WANG H Z, et al. Chemical flooding development status and prospect[J]. Acta Petrolei Sinica, 2017,38(2):196-207. |
| [18] | 李永太, 孔柏岭. 提高三元复合驱现场应用效果的技术途径[J]. 西南石油大学学报(自然科学版), 2019,41(4):113-119. |
| [18] | LI Y T, KONG B L. Technical approach for improving the field application result of ASP flooding[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2019,41(4):113-119. |
| [19] | LI Y C, ZHANG W D, KONG B L, et al. Mixtures of anionic/cationic surfactants: a new approach for enhanced oil recovery in low-salinity, high-temperature sandstone reservoir[J]. SPE Journal, 2016,21(4):1164-1177. |
| [20] | LI Y C, KONG B L, ZHANG W D, et al. Field application of alkali/surfactant/polymer flood with novel mixtures of anionic/cationic surfactants for high-temperature and high-water-cut mature sandstone reservoir[J]. SPE Reservoir Evaluation & Engineering, 2020,23(3):1093-1104. |
| [21] | 韩培慧, 闫坤, 曹瑞波, 等. 聚驱后油层提高采收率驱油方法[J]. 岩性油气藏, 2019,31(2):143-150. |
| [21] | HAN P H, YAN K, CAO R B, et al. Oil displacement methods for enhanced oil recovery after polymer flooding[J]. Lithologic Reservoirs, 2019,31(2):143-150. |
/
| 〈 |
|
〉 |