致密油藏含水饱和度对CO2吞吐效果的影响

王英伟; 张玉龙; 张景; 施雷庭; 范希彬; 王睿麒

doi:10.3969/j.issn.1006-6535.2023.02.018

特种油气藏 >

2023 , Vol. 30 >Issue 2: 128 - 133

DOI: https://doi.org/10.3969/j.issn.1006-6535.2023.02.018

油藏工程

致密油藏含水饱和度对CO₂吞吐效果的影响

王英伟 ,
张玉龙 ,
张景 ,
施雷庭 ,
范希彬 ,
王睿麒

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1.中国石油新疆油田分公司,新疆克拉玛依 834000;
2.油气藏地质与开发工程国家重点实验室,四川成都 610500

王英伟(1985—),男,工程师,2009年毕业于长江大学石油工程专业,2012年毕业于该校地球探测与信息技术专业,获硕士学位,现主要从事油气藏描述研究工作。

收稿日期: 2022-04-11

修回日期: 2022-10-25

网络出版日期: 2023-05-29

基金资助

中国石油重大科技专项“陆相中高成熟度页岩油勘探开发关键技术研究与应用”(2019E-26)

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Effect of Water Saturation on CO₂ Huff-n-Puff in Tight Reservoirs

Wang Yingwei ,
Zhang Yulong ,
Zhang Jing ,
Shi Leiting ,
Fan Xibin ,
Wang Ruiqi

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1. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
2. State Key Laboratory of Oil and Gas Reservoir Geology and Development Engineering, Chengdu, Sichuan 610500, China

Received date: 2022-04-11

Revised date: 2022-10-25

Online published: 2023-05-29

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摘要

储层中含油饱和度的变化会影响CO₂与储层流体相互作用,为研究含水饱和度对砂砾岩致密油藏CO₂吞吐采油效果的影响,基于新疆玛湖砂砾岩致密油藏储层条件,开展不同含水饱和度下CO₂在油水中的溶解、膨胀以及吞吐实验。结果表明:随着含水饱和度增加,CO₂在油水中的溶解度从6.08 mol/L降至2.01 mol/L,膨胀体积由最高1.53倍降至1.09倍,CO₂与原油作用效果逐渐减弱,累计采出程度最高为20.21%;含水饱和度低于45.0%时采用CO₂吞吐开发效果较好;当含水饱和度低于50.3%时,以沥青质沉积为主,储层渗透率降低,超过50.3%时以矿物溶蚀为主,渗透率增加。研究成果对致密油藏的高效开发具有一定指导作用。

关键词： 砂砾岩致密油藏; 溶解度; 膨胀; CO₂吞吐; 渗透率

本文引用格式

王英伟 , 张玉龙 , 张景 , 施雷庭 , 范希彬 , 王睿麒 . 致密油藏含水饱和度对CO₂吞吐效果的影响[J]. 特种油气藏, 2023 , 30(2) : 128 -133 . DOI: 10.3969/j.issn.1006-6535.2023.02.018

Abstract

The change of oil saturation in the reservoir will affect the interaction between CO₂ and reservoir fluid. In order to study the effect of water saturation on the oil recovery of glutenite tight reservoir by CO₂ huff-n-puff, tests were conducted on the dissolution, expansion and huff-n-puff of CO₂ in oil and water at different water saturation based on the reservoir conditions of Mahu glutenite tight reservoirs, Xinjiang. The results show that as the water saturation was increased, the solubility of CO₂ in oil and water was decreased from 6.08 mol/L to 2.01 mol/L, the expanding volume was decreased from the highest 1.53 times to 1.09 times, the effect of CO₂ interaction with crude oil gradually weakened, and the maximum cumulative recovery percent was 20.21%; the development effect of CO₂ huff-n-puff was better when the water saturation was less than 45.0%; when the water saturation was lower than 50.3%, asphaltene deposition was dominant, with decrease in reservoir permeability; when the water saturation was higher than 50.3%, mineral dissolution was dominant, with increase in reservoir permeability. The study results play a guiding role in the efficient development of tight oil reservoirs.

Key words： glutenite tight reservoir; solubility; expansion; CO₂ huff-n-puff; permeability

参考文献

[1] 孙雷,纪明强,郑家朋,等.柳北砂砾岩油藏CO₂驱提高采收率可行性[J].大庆石油地质与开发,2016,35(5):123-127.
SUN Lei,JI Mingqiang,ZHENG Jiapeng,et al.EOR feasibility of CO₂ flooding for liubei conglomerate oil reservoirs[J].Petroleum Geology & Oilfield Development in Daqing,2016,35(5):123-127.
[2] 马力,欧阳传湘,王长权,等.低渗透油藏水平井CO₂吞吐技术研究[J].化学工程师,2018,32(10):38-40,47.
MA Li,OUYANG Chuanxiang,WANG Changquan,et al.Resear
ch on CO₂ huffing technology in horizontal wells in low permeability reservoirs[J].Chemical Engineer,2018,32(10):38-40,47.
[3] 张越琪,苟利鹏,乔文波,等.致密油藏超临界二氧化碳吞吐开发特征实验研究[J].特种油气藏,2021,28(1):130-135.
ZHANG Yueqi,GOU Lipeng,QIAO Wenbo,et al.Research on CO₂ huffing technology in horizontal wells in low permeability reservoirs[J].Special Oil & Gas Reservoirs,2021,28(1):130-135.
[4] 邓宝康,李军建,高银山,等.鄂尔多斯盆地致密油藏注CO₂吞吐微观剩余油分布特征[J].大庆石油地质与开发,2020,39(6):119-125.
DENG Baokang,LI Junjian,GAO Yinshan,et al.Research on CO₂ huffing technology in horizontal wells in low permeability reservoirs[J].Petroleum Geology & Oilfield Development in Daqing,2020,39(6):119-125.
[5] ZHANG Juan,ZHANG Huixiao,MA Liyan,et al,Performance evaluation and mechanism with different CO₂ flooding modes in tight oil reservoir with fractures[J].Journal of Petroleum Science and Engineering,2020,188:106950.
[6] 杨铁军,张英芝,杨正明,等.致密砂岩油藏CO₂驱油提高采收率机理[J].科学技术与工程,2019,19(24):113-118.
YANG Tiejun,ZHANG Yingzhi,YANG Zhengming,et al.Mecha
nism of enhanced oil recovery by CO₂ flooding in tight sandstone reservoirs[J].Science Technology and Engineering,2019,19(24):113-118.
[7] 铁磊磊.地层条件下二氧化碳在水和油单相中的溶解扩散研究[D].北京:中国石油大学(北京),2008.
TIE Leilei.Study on dissolved diffusion of carbon dioxide in water and oil single phase under stratigraphic conditions[D].Beijing:China University of Petroleum(Beijing),2008.
[8] 赵瑞明,张晓宇,王娜,等.CO₂在原油及高矿化度地层水体系中的溶解试验[J].石油天然气学报,2018,40(4):36-40.
ZHAO Ruiming,ZHANG Xiaoyu,WANG Na,et al.Solubility of CO₂ in crude oil and high salinity formation water system[J].Journal of Oil and Gas Technology,2018,40(4):36-40.
[9] GRICHUK A D,KIREEVA T A,UTOPLENNIKOV V K.Determ
ination of carbon dioxide solubility in oil during interaction with a compound gaseous phase[J].Moscow University Geology Bulletin,2013,68(2):132-139.
[10] ANDERSON G K.Solubility of carbon dioxide in water under incipient clathrate formation conditions[J].Journal of Chemical & Engineering Data,2002,47(2):219-222.
[11] 王长权.油藏中CO₂驱油与地质埋存机理[D].成都:西南石油大学,2013.
WANG Changquan.CO₂ oil drive and geological burial mechanism in oil reservoirs[D].Chengdu:Southwest Petroleum University,2013.
[12] 王少朋,侯吉瑞,赵凤兰,等.CO₂在油水混合物中的溶解度及饱和CO₂油水的密度[J].西安石油大学学报(自然科学版),2012,27(5):39-42,57.
WANG Shaopeng,HOU Jirui,ZHAO Fenglan,et al.Solubility of CO₂ in oil,water and their mixture and density of the saturated CO₂ fluids[J].Journal of Xi'an Shiyou University(Natural Science Edition),2012,27(5):39-42,57.
[13] 宫厚健,朱超凡,李亚军,等.测量页岩油二氧化碳吞吐过程中扩散系数的装置及方法:CN108362614A[P].2018-08-03.
GONG Houjian,ZHU Chaofan,LI Yajun,et al.Apparatus and method for measuring diffusion coefficients in shale oil CO₂ throughput process:CN108362614A[P].2018-08-03.
[14] 郑太毅,杨正明,王志远,等.致密油藏分段压裂水平井二氧化碳蓄能吞吐方式[J].科学技术与工程,2019,19(4):99-104.
ZHENG Taiyi,YANG Zhengming,WANG Zhiyuan,et al.Carbon dioxide energy storage huff and puff for staged fracturing horizontal wells in tight reservoirs[J].Science Technology and Engineering,2019,19(4):99-104.
[15] 何应付,赵淑霞,刘学伟.致密油藏多级压裂水平井CO₂吞吐机理[J].断块油气田,2018,25(6):752-756.
HE Yingfu,ZHAO Shuxia,LIU Xuewei.Mechanism of CO₂ huff & puff of multi-stage fractured horizontal well in tight oil reservoir[J].Fault-Block Oil & Gas Field,2018,25(6):752-756.
[16] 贾瑞轩,孙灵辉,苏致新,等.二氧化碳吞吐致密油藏的可动用性[J].断块油气田,2020,27(4):504-508.
JIA Ruixuan,SUN Linghui,SU Zhixin,et al.Availability of CO₂ huff and puff in tight reservoir[J].Fault-Block Oil & Gas Field,2020,27(4):504-508.
[17] 张昌民,尹太举,唐勇,等.准噶尔盆地西北缘及玛湖凹陷沉积储集层研究进展[J].古地理学报,2020,22(1):129-146.
ZHANG Changmin,YIN Taiju,TANG Yong,et al.Advances in sedimentological reservoir research in Mahu Sag and northwest margin of Junggar Basin[J].Journal of Paleogeography,2020,22(1):129-146.
[18] LIAO Changlin,LIAO Xinwei,GAO Wanglai,et al.Technical feasibility and application effect of coupled CO₂ sequestration and EOR in tight sandstone oil reservoir[J].International Journal of Global Warming,2016,9(2):177-197.
[19] 梅海燕,何浪,张茂林,等.页岩油注气提高采收率现状及可行性分析[J].油气藏评价与开发,2018,8(6):77-82.
MEI Haiyan,HE Lang,ZHANG Maolin,et al.Status and feasibility analysis on improved shale-oil recovery by gas injection[J].Reservoir Evaluation and Development,2018,8(6):77-82.
[20] 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.
WANG Yiping,SUN Yeheng,WU Guanghuan,et al.Permeability rule of CO₂ huff and puff for ultra-deep heavy oil reservoirs[J].Special Oil & Gas Reservoirs,2017,24(4):142-146.
[21] 吴捷.低渗稠油化学剂辅助二氧化碳吞吐技术研究与应用[J].石油地质与工程,2021,35(3):59-62.
WU Jie.Research and application of chemical agent assisted CO₂ huff and puff technology for heavy oil reservoir with low permeability[J].Petroleum Geology & Engineering,2021,35(3):59-62.
[22] 任旭,王杰,董海海,等.考虑组分差异的致密油二氧化碳吞吐效果分子模拟[J].断块油气田,2022,29(2):229-233.
REN Xu,WANG Jie,DONG Haihai,et al.Molecular simulation of CO₂ huff and puff effects in tight oil considering component differences[J].Fault-Block Oil & Gas Field,2022,29(2):229-233.
[23] 李毓,卢祥国,李鸿儒,等.基于底水仿真模型油藏化学驱后CO₂吞吐增油效果:以大港油田底水油藏为例[J].大庆石油地质与开发,2022,41(5):101-111.
LI Yu,LU Xiangguo,LI Hongru,et al.Study on CO₂ huff and puff effect of increasing oil production after chemical flooding based on bottom water reservoir simulation model:take bottom water reservoir of Dagang Oilfield as an example[J].Petroleum Geology & Oilfield Development in Daqing,2022,41(5):101-111.
[24] 韩鑫,侯大力,赵锐,等.近临界挥发油藏CO₂-近临界挥发油-地层水三相相态实验[J].大庆石油地质与开发,2022,41(6):120-126.
HAN Xin,HOU Dali,ZHAO Rui,et al.Three-phase experiments of CO₂ near critical volatile oil-formation water in near-critical volatile oil reservoirs[J].Petroleum Geology & Oilfield Development in Daqing,2022,41(6):120-126.
[25] 田巍.CO₂驱提高采收率方法在深层低渗透油藏的应用[J].石油地质与工程,2020,34(4):50-54.
TIAN Wei.Application of CO₂ EOR in the deep low permeability reservoir[J].Petroleum Geology & Engineering,2020,34(4):50-54.
[26] 刘炳官,林波,王智林,等.水驱后期断块油藏CO₂气顶与人工边水组合驱压力恢复规律[J].油气地质与采收率,2021,28(5):87-93.
LIU Bingguan,LIN Bo,WANG Zhilin,et al.Pressure recovery of CO₂ gas cap and artificial edge water combined flooding in fault-block reservoirs at late stage of water flooding[J].Petroleum Geology and Recovery Efficiency,2021,28(5):87-93.

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