支化预交联凝胶颗粒提高采收率机理实验

孟庆春; 何刚; 郭发军; 李华斌; 王莉

doi:10.3969/j.issn.1006-6535.2023.05.014

特种油气藏 >

2023 , Vol. 30 >Issue 5: 105 - 112

DOI: https://doi.org/10.3969/j.issn.1006-6535.2023.05.014

油藏工程

支化预交联凝胶颗粒提高采收率机理实验

孟庆春 ,
何刚 ,
郭发军 ,
李华斌 ,
王莉

展开

1.中国石油华北油田分公司,河北沧州 062552;
2.成都理工大学,四川成都 610059

孟庆春(1969—),男,高级工程师,1991年毕业于西北大学石油地质专业,2002年毕业于西南石油学院油气田开发专业,获硕士学位,现从事油气田开发工作。

收稿日期: 2022-07-04

修回日期: 2023-06-26

网络出版日期: 2023-12-25

基金资助

中国石油攻关性应用性科技专项“多轮次深部调驱后提高采收率技术研究”(HBYT-KTY-2020-JS-50312)

收起

Experiment on the Mechanism of Enhanced Recovery by Branched Pre-Crosslinked Gel Particles

Meng Qingchun ,
He Gang ,
Guo Fajun ,
Li Huabin ,
Wang Li

Expand

1. PetroChina North China Oilfield Company, Cangzhou, Hebei 062552, China;
2. Chengdu University of Technology, Chengdu, Sichuan 610059, China

Received date: 2022-07-04

Revised date: 2023-06-26

Online published: 2023-12-25

Fold

摘要

为解决华北油田河间东营某区块化学驱因聚合物老化导致的驱油体系黏度及驱油效果下降的问题,基于黏度和黏弹性测试、粒径分布测量、核磁共振测试、并联岩心驱替等多种实验手段,明确了支化预交联凝胶颗粒(B-PPG)的微观驱油机理以及并联岩心的驱油效果。结果显示:B-PPG分子的支链结构的水溶性较好,可提高溶液的表观黏度;B-PPG网状分子结构以破碎或变形的方式进入地层,从而改善流度比,提高非均质储层的波及效率;当主力油层的渗透率级差为7.4时,质量浓度为2 000 mg/L的B-PPG体系提高采收率的幅度较水驱高20%。研究表明:B-PPG体系黏弹性好,变形能力强,具有理想的抗盐性,能在高渗层形成有效封堵,大幅度提高采收率。该研究为改善高温高盐油藏剖面、封堵高渗优势通道、大幅度提高油藏波及效率和采收率提供了借鉴。

关键词： 支化预交联凝胶颗粒; 黏弹性测试; 性能测试; 提高采收率; 封堵实验; 波及效率

本文引用格式

孟庆春 , 何刚 , 郭发军 , 李华斌 , 王莉 . 支化预交联凝胶颗粒提高采收率机理实验[J]. 特种油气藏, 2023 , 30(5) : 105 -112 . DOI: 10.3969/j.issn.1006-6535.2023.05.014

Abstract

In order to solve the problem of decreasing viscosity and oil displacement effect of the oil displacement system due to polymer aging of the chemical displacement in a certain block in Dongying, Hejian, Huabei Oilfield, the microscopic oil displacement mechanism of branched pre-crosslinked gel particles (B-PPGs) as well as the oil displacement effect of parallel cores were clarified based on a variety of experimental means such as viscosity and viscoelasticity tests, particle size distribution measurements, nuclear magnetic resonance (NMR) tests, and parallel core displacement. The results show that the branched structure of B-PPG molecules has better water solubility, which can improve the apparent viscosity of the solution; the B-PPG reticulated molecular structure enters into the formation in a crushed or deformed manner, which improves the mobility ratio and increases the sweep efficiency of the non-homogeneous reservoirs; when the permeability gradient of the main reservoir is 7.4, the recovery enhancement of the B-PPG system with a mass concentration of 2000 mg/L is 20% higher than that of the water displacement. The study shows that: The B-PPG system has good viscoelasticity, strong deformation ability, and ideal salt resistance, which can form an effective seal in the highly permeable layer and substantially increase the recovery rate. This study provides a reference for improving the profile of high-temperature and high-salt reservoirs, sealing the preferential channels of high permeability, and substantially increasing the reservoir sweep efficiency and recovery rate.

Key words： branched pre-crosslinked gel particles; viscoelasticity test; performance test; enhanced recovery; sealing experiment; sweep efficiency

参考文献

[1] LIU Y,BAI B,WANG Y.Applied technologies and prospects of conformance control treatments in China[J].Oil & Gas Science and Technology,2010,65(6):859-878.
[2] BAI B,LI L,LIU Y,et al.Preformed particle gel for conformance control:factors affecting its properties and applications[J].SPE Reservoir Evaluation & Engineering,2007,10(4):415-422.
[3] 周立宏,陈长伟,韩国猛,等.渤海湾盆地歧口凹陷陆相湖盆页岩气富集条件及勘探潜力[J].天然气工业,2021,41(5):1-10.
ZHOU Lihong, CHEN Changwei, HAN Guomeng, et al. Enrichment conditions and exploration potential of shale gas in continental lake basins in Qikou Sag, Bohai Bay Basin[J].Natural Gas Industry,2021,41(5):1-10.
[4] 张道伟,杨雨.四川盆地陆相致密砂岩气勘探潜力与发展方向[J].天然气工业,2022,42(1):1-11.
ZHANG Daowei, YANG Yu.Exploration potential and development direction of continental tight sandstone gas in the Sichuan Basin[J].Natural Gas Industry,2022,42(1):1-11.
[5] 王端平.对胜利油区提高原油采收率潜力及转变开发方式的思考[J].油气地质与采收率,2014,21(4):1-4.
WANG Duanping.Some thoughts about potential of oil recovery efficiency and development model transition in Shengli district[J].Petroleum Geology and Recovery Efficiency,2014,21(4):1-4.
[6] 王治平,张庆,刘子平,等. 斜坡型强非均质页岩气藏高效开发技术——以川南威远地区龙马溪组页岩气藏为例[J].天然气工业,2021,41(4):72-81.
WANG Zhiping, ZHANG Qing, LIU Ziping, et al. Efficient development technology slope-type strongly heterogeneous shale gas reservoirs: a case study on the Longmaxi Formation shale gas reservoir in Weiyuan area of the southern Sichuan Basin[J].Natural Gas Industry,2021,41(4):72-81.
[7] SONG Q,LI YJ,YU L,et al.Enhanced oil recovery by branched-preformed particle gel injection in parallel-sandpack models[J].Fuel,2014,136:295-306.
[8] 高树生,杨明翰,叶礼友,等.低渗透底水气藏水侵动态模拟实验及其对采收率的影响[J].天然气工业,2022,42(3):61-70.
GAO Shusheng, YANG Minghan, YE Liyou,et al.Simulation experiment of water invasion performance in low-permeability bottom water gas reservoir and its influence on recovery factor[J].Natural Gas Industry,2022,42(3):61-70.
[9] GONG H,ZHANG H,XU L,et al.Further enhanced oil recovery by branched-preformed particle gel/HPAM/surfactant mixed solutions after polymer flooding in parallel-sandpack models[J].RSC Advances,2017,7(63):39564-39575.
[10] GONG H,ZHANG H,XU L,et al.The Synergistic effect of branched-preformed particle gel and hydrolyzed polyacrylamide on further-enhanced oil recovery after polymer flooding[J].Energy & Fuels,2017,31(8):7904-7910.
[11] CAO X.Design and performance evaluation on the heterogeneous combination flooding system[J].Acta Petrolei Sinica,2013,29(1):115-121.
[12] HE H,WANG Y,ZHANG J,et al.Comparison of gelation behavior and morphology of Resorcinol-Hexamethylenetetramine-HPAM gel in bulk and porous media[J].Transport in Porous Media,2015,109:377-392.
[13] 赵曾浩.B-PPG在多孔介质中的渗流规律研究[D].青岛:中国石油大学(华东),2016.
ZHAO Zenghao.Study on the seepage law of B-PPG in porous media[D].Qingdao:China University of Petroleum(East China),2016.
[14] 李云,文孟刚,高秀峰,等.多因素影响下多孔介质中气体突破渗透率衰减模型[J].天然气工业,2021,41(9):75-86.
LI Yun, WEN Menggang, GAO Xiufeng, et al. Attenuation model of gas breakthrough permeability in porous media under the influence of multiple factors[J].Natural Gas Industry,2021,41(9):75-86.
[15] 刘义刚,丁名臣,韩玉贵,等.支化预交联凝胶颗粒在油藏中的运移与调剖特性[J].石油钻采工艺,2018,40(3):393-399.
LIU Yigang,DING Mingchen,HAN Yugui,et al.Migration and profile control properties of B-PPG in oil reservoirs[J].Oil Drilling & Production Technology,2018,40(3):393-399.
[16] 冯永存,马成云,楚明明,等.刚性颗粒封堵裂缝地层漏失机制数值模拟[J].天然气工业,2021,41(7):93-100.
FENG Yongcun,MA Chengyun,CHU Mingming,et al.Numerical simulation on the mechanism for rigid particle plugging of leakage in fracture formations[J].Natural Gas Industry,2021,41(7):93-100.
[17] 于龙,李亚军,宫厚健,等.非均质油层聚合物驱后黏弹性支化预交联凝胶颗粒驱提高采收率技术[J].油气地质与采收率,2016,23(1):113-118.
YU Long,LI Yajun,GONG Houjian,et al.EOR of branched-preformed particle gel(B-PPG)flooding after polymer flooding in heterogeneous reservoirs[J].Petroleum Geology and Recovery Efficiency,2016,23(1):113-118.
[18] 陈哲,徐鹏.弱凝胶/预交联颗粒复合调驱室内评价[J].非常规油气,2018,5(5):58-61.
CHEN Zhe,XU Peng.Laboratory evaluation of weak gel/precrosslinked particulate composite flooding technology[J].Unconventional Oil & Gas,2018,5(5):58-61.
[19] 刘晶静.吴起油田弱凝胶微粒复合调驱技术研究与应用[J].非常规油气,2018,5(6):76-79.
LIU Jingjing.Research and application of weak gel particle composite transfer technology in Wuqi Oilfield[J].Unconventional Oil & Gas,2018,5(6):76-79.
[20] 李立涛.B-PPG非均相体系渗流机理研究[D].青岛:中国石油大学(华东),2013.
LI Litao.Study on the seepage mechanism of B-PPG non-homogeneous system[D].Qingdao:China University of Petroleum(East China),2013.
[21] 于龙.B-PPG渗流规律及提高采收率机理研究[D].青岛:中国石油大学(华东),2015.
YU Long.Study on the seepage law of B-PPG and the recovery enhancment mechanism[D].Qingdao:China University of Petroleum(East China),2015.
[22] 任亭亭.聚驱HPAM/B-PPG非均相复合体系提高采收率研究[D].青岛:中国石油大学(华东),2015.
REN Tingting.Study of polydriven HPAM/B-PPG non-homogeneous composite system for enhanced recovery[D].Qingdao:China University of Petroleum(East China),2015.
[23] 于龙,李亚军,宫厚健,等.支化预交联凝胶颗粒驱油机理可视化实验研究[J].断块油气田,2014,21(5):656-659.
YU Long,LI Yajun,GONG Houjian,et al.Visualization experimental study on oil-displacement mechanism of B-PPG system[J].Fault-Block Oil & Gas Field,2014,21(5):656-659.
[24] 李国欣,田军,段晓文,等.大幅提高超深致密砂岩气藏采收率对策与实践——以塔里木盆地克拉苏气田为例[J].天然气工业,2022,42(1):93-101.
LI Guoxin, TIAN Jun, DUAN Xiaowen,et al.Measures and practice for improving the recovery factor of ultradeep tight sandstone gas reservoirs:a case study of Kelasu Gasfield, Tarim Basin[J].Natural Gas Industry,2022,42(1):93-101.
[25] 王哲,曹广胜,白玉杰,等.低渗透油藏提高采收率技术现状及展望[J].特种油气藏,2023,30(1):1-13.
WANG Zhe,CAO Guangsheng,BAI Yujie,et al.Development status and prospect of EOR technology in low-permeability reservoirs[J].Special Oil & Gas Reservoirs,2023,30(1):1-13.
[26] 温静,肖传敏,郭斐,等.微生物＋化学复合驱提高高凝油油藏采收率室内实验[J].特种油气藏,2023,30(1):87-92.
WEN Jing, XIAO Chuanmin, GUO Fei,et al.Laboratory test of microbial chemical compound flooding to enhance recovery efficiency of high condensate oil reservoirs[J].Special Oil & Gas Reservoirs,2023,30(1):87-92.
[27] 王凤娇,徐贺,刘义坤,等.浅薄层普通稠油油藏聚合物驱提高采收率研究与应用[J].特种油气藏,2023,30(1):107-113.
WANG Fengjiao, XU He, LIU Yikun,et al.Study and application of polymer flooding for enhanced oil recovery in shallow ordinary heavy oil reservoirs[J].Special Oil & Gas Reservoirs,2023,30(1):107-113.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献