微-纳米受限空间原油-天然气最小混相压力预测方法

doi:10.7623/syxb202211007

石油学报 ›› 2022, Vol. 43 ›› Issue (11): 1604-1613.DOI: 10.7623/syxb202211007

微-纳米受限空间原油-天然气最小混相压力预测方法

魏兵¹, 钟梦颖¹, 赵金洲¹, 王典林¹, Kadet Valeriy², 游君昱³

1. 西南石油大学油气藏地质与开发工程国家重点实验室四川成都 610500;
2. 古勃金国立石油与天然气大学俄罗斯莫斯科 119991;
3. 重庆科技学院重庆 401331

收稿日期:2021-07-10 修回日期:2022-07-12 出版日期:2022-11-25 发布日期:2022-12-02
通讯作者: 魏兵
作者简介:魏兵,男,1983年8月生,2013年获加拿大新不伦瑞克大学博士学位,现为西南石油大学教授、博士生导师,主要从事非常规油气藏提高采收率理论与技术研究。Email:bwei@swpu.edu.cn
基金资助:
国家自然科学基金面上项目"致密油藏缝网均衡波及与基质/裂缝高效'质'换协同提高采收率模式研究"(No.52274041)、高等学校学科创新引智计划项目(D18016)和四川省杰出青年基金项目"非常规油气藏提高采收率理论与方法"资助。

Prediction method for the minimum miscibility pressure of crude oil and natural gas in micro-nano confined space

Wei Bing¹, Zhong Mengying¹, Zhao Jinzhou¹, Wang Dianlin¹, Kadet Valeriy², You Junyu³

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Sichuan Chengdu 610500, China;
2. Gubkin Russian State University of Oil and Gas, Moscow 119991, Russia;
3. Chongqing University of Science and Technology, Chongqing 401331, China

Received:2021-07-10 Revised:2022-07-12 Online:2022-11-25 Published:2022-12-02

摘要/Abstract

摘要： 微-纳米受限空间原油-天然气的最小混相压力(MMP)对致密/页岩油储层注天然气提高采收率参数优化、方案设计及产能预测至关重要,但至今尚缺少获取该参数的可靠方法。针对这一关键问题,提出一种微-纳米受限空间原油-天然气界面张力(IFT)计算方法,通过原油-天然气相平衡计算得到Parachor模型参数从而计算出IFT,并基于界面张力消失法(VIT)预测MMP。该方法改进了气液平衡计算及Peng-Robinson状态方程,考虑了毛细管压力并修正了流体的临界压力和临界温度,简化了传统计算方法,并将气/液相压力考虑到平衡常数K_i的迭代公式中。通过设计8组不同组分天然气并以长庆油田原油和拟注入天然气为实例,分别计算了孔隙半径r_p为5 000 nm、1 000 nm、500 nm、100 nm、10 nm时的IFT和MMP。计算结果表明,压力越高,IFT越小;在r_p为100~5 000 nm时,原油-天然气体系的IFT和MMP基本不受r_p的影响;当r_p≤100 nm时,IFT和MMP显著降低,MMP最大降幅达38.76%,说明致密/页岩油储层注天然气提高采收率相比常规储层注天然气更容易混相。原油-天然气体系的MMP与C₂—C₄含量呈现负相关性,且r_p越小,MMP递减速度越快,最大降幅达57.33%(r_p=10 nm,C₂—C₄摩尔分数增至40%)。将计算结果与文献报道数据进行对比,进一步验证了模型的可靠性。

关键词: 微-纳米受限空间, 天然气, 界面张力, 最小混相压力, 长庆油田

Abstract: The minimum miscibility pressure (MMP)of crude oil-gas in micro-nano confined space is crucial to the optimization of natural gas EOR parameters, scheme design and production prediction in tight/shale reservoirs. However, there is still no reliable method for obtaining this parameter up till now. To address this key issue, the paper proposes a micro-nano confined space crude oil-gas interfacial tension (IFT)calculation method; the Parachor model parameters are obtained by crude oil-gas phase equilibrium calculations, so as to further obtain IFT and predict MMP based on the vanishing interfacial tension (VIT)method. This method improves the vapor-liquid equilibrium (VLE)calculation and the Peng-Robinson equation of state (PR-EOS), considers the capillary pressure and corrects the critical pressure and critical temperature of the fluid, simplifies the conventional calculation method, and takes into account the vapor and liquid phase pressures in the K_i iterative formulation. Using Changqing crude oil and quasi-injected natural gas as the samples, the IFT and MMP were calculated when the pore radius r_p equals to 5 000 nm, 1 000 nm, 500 nm, 100 nm, and 10 nm for eight groups of different components of natural gas. The results show that the higher the pressure, the smaller the IFT; when r_pranges from 100 nm to 5 000 nm, the IFT and MMP are basically unaffected by r_p; when r_p≤100 nm, IFT and MMP decrease significantly, and the maximum decrease of MMP is 38.76 % , indicating that the miscibility of crude oil and natural gas in tight/shale oil reservoirs, as compared with that in conventional reservoirs, can be more readily achieved. There is a negative correlation between the MMP of crude oil-gas system and C₂-C₄ content, and the smaller the r_p, the faster the decreasing rate of MMP, with the maximum decrease of 57.33 % (r_p=10 nm, C₂-C₄ content increases to 40 mol % ). Finally, the calculated results were compared with the data reported in the literaturem to verify the reliability of the model.

Key words: micro-nano confined space, natural gas, interfacial tension, minimum miscibility pressure, Changqing oilfield

中图分类号:

TE357.4

魏兵, 钟梦颖, 赵金洲, 王典林, Kadet Valeriy, 游君昱. 微-纳米受限空间原油-天然气最小混相压力预测方法[J]. 石油学报, 2022, 43(11): 1604-1613.

Wei Bing, Zhong Mengying, Zhao Jinzhou, Wang Dianlin, Kadet Valeriy, You Junyu. Prediction method for the minimum miscibility pressure of crude oil and natural gas in micro-nano confined space[J]. Acta Petrolei Sinica, 2022, 43(11): 1604-1613.

参考文献

[1] 魏兵,刘江,张翔,等.致密油藏提高采收率方法与理论研究进展[J].西南石油大学学报:自然科学版,2021,43(1):91-102.
WEI Bing,LIU Jiang,ZHANG Xiang,et al.Advances of enhanced oil recovery method and theory in tight reservoirs[J].Journal of Southwest Petroleum University:Science & Technology Edition,2021,43(1):91-102.
[2] 贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350.
JIA Chengzao,ZOU Caineng,LI Jianzhong,et al.Assessment criteria,main types,basic features and resource prospects of the tight oil in China[J].Acta Petrolei Sinica,2012,33(3):343-350.
[3] 张君峰,毕海滨,许浩,等.国外致密油勘探开发新进展及借鉴意义[J].石油学报,2015,36(2):127-137.
ZHANG Junfeng,BI Haibin,XU Hao,et al.New progress and reference significance of overseas tight oil exploration and development[J].Acta Petrolei Sinica,2015,36(2):127-137.
[4] 邹才能,潘松圻,荆振华,等.页岩油气革命及影响[J].石油学报,2020,41(1):1-12.
ZOU Caineng,PAN Songqi,JING Zhenhua,et al.Shale oil and gas revolution and its impact[J].Acta Petrolei Sinica,2020,41(1):1-12.
[5] ZULOAGA-MOLERO P,YU Wei,XU Yifei,et al.Simulation study of CO₂-EOR in tight oil reservoirs with complex fracture geometries[J].Scientific Reports,2016,6(1):33445.
[6] 樊建明,王冲,屈雪峰,等.鄂尔多斯盆地致密油水平井注水吞吐开发实践——以延长组长7油层组为例[J].石油学报,2019,40(6): 706-715.
FAN Jianming,WANG Chong,QU Xuefeng,et al.Development and practice of water flooding huff-puff in tight oil horizontal well,Ordos Basin:a case study of Yanchang Formation Chang 7 oil layer[J].Acta Petrolei Sinica,2019,40(6):706-715.
[7] YU Wei,LASHGARI H R,WU Kan,et al.CO₂ injection for enhanced oil recovery in Bakken tight oil reservoirs[J].Fuel,2015,159:354-363.
[8] WANG Leizheng,YU Wei.Gas huff and puff process in eagle ford shale:recovery mechanism study and optimization[R].SPE 195185,2019.
[9] 康毅力,田键,罗平亚,等.致密油藏提高采收率技术瓶颈与发展策略[J].石油学报,2020,41(4):467-477.
KANG Yili,TIAN Jian,LUO Pingya,et al.Technical bottlenecks and development strategies of enhancing recovery for tight oil reservoirs[J].Acta Petrolei Sinica,2020,41(4):467-477.
[10] WEI Bing,LU Laiming,PU Wanfen,et al.Production dynamics of CO₂ cyclic injection and CO₂ sequestration in tight porous media of Lucaogou Formation in Jimsar sag[J].Journal of Petroleum Science and Engineering,2017,157:1084-1094.
[11] LI Lei,SHENG J J.Upscale methodology for gas huff-n-puff process in shale oil reservoirs[J].Journal of Petroleum Science and Engineering,2017,153:36-46.
[12] YU Yang,SHENG J J.An experimental investigation of the effect of pressure depletion rate on oil recovery from shale cores by cyclic N₂ injection[R].URTEC 2144010,2015.
[13] 黄兴,李响,何梦卿,等.致密轻质油藏不同CO₂注入方式沥青质沉积及储层伤害特征[J].石油学报,2021,42(12):1665-1674.
HUANG Xing,LI Xiang,HE Mengqing,et al.Characteristics of asphaltene precipitation and formation damage of tight light oil reservoirs under different CO₂ injection modes[J].Acta Petrolei Sinica,2021,42(12):1665-1674.
[14] 袁士义,王强,李军诗,等.注气提高采收率技术进展及前景展望[J].石油学报,2020,41(12):1623-1632.
YUAN Shiyi,WANG Qiang,LI Junshi,et al.Technology progress and prospects of enhanced oil recovery by gas injection[J].Acta Petrolei Sinica,2020,41(12):1623-1632.
[15] WEI Bing,GAO Ke,SONG Tao,et al.Nuclear-magnetic-resonance monitoring of mass exchange in a low-permeability matrix/fracture model during CO₂ cyclic injection:a mechanistic study[J].SPE Journal,2020,25(1):440-450.
[16] MA Jinhua,WANG Xiangzeng,GAO Ruimin,et al.Enhanced light oil recovery from tight Formations through CO₂ huff 'n’ puff processes[J].Fuel,2015,154:35-44.
[17] WANG Xiaoqi,GU Yong’an.Oil recovery and permeability reduction of a tight sandstone reservoir in immiscible and miscible CO₂ flooding processes[J].Industrial & Engineering Chemistry Research,2011,50(4):2388-2399.
[18] TEKLU T W,ALHARTHY N,KAZEMI H,et al.Minimum miscibility pressure in conventional and unconventional reservoirs[R].URTEC 1589572,2013.
[19] 鞠斌山,秦积舜,李治平,等.二氧化碳-原油体系最小混相压力预测模型[J].石油学报,2012,33(2):274-277.
JU Binshan,QIN Jishun,LI Zhiping,et al.A prediction model for the minimum miscibility pressure of the CO₂-crude oil system[J].Acta Petrolei Sinica,2012,33(2):274-277.
[20] 李相方,冯东,张涛,等.毛细管力在非常规油气藏开发中的作用及应用[J].石油学报,2020,41(12):1719-1733.
LI Xiangfang,FENG Dong,ZHANG Tao,et al.The role and its application of capillary force in the development of unconventional oil and gas reservoirs and its application[J].Acta Petrolei Sinica,2020,41(12):1719-1733.
[21] TEKLU T W,ALHARTHY N,KAZEMI H,et al.Phase behavior and minimum miscibility pressure in nanopores[J].SPE Reservoir Evaluation & Engineering,2014,17(3):396-403.
[22] SONG Yilei,SONG Zhaojie,LIU Yueliang,et al.Phase behavior and minimum miscibility pressure of confined fluids in organic nanopores[R].SPE 200449,2020.
[23] DEVEGOWDA D,SAPMANEE K,CIVAN F,et al.Phase behavior of gas condensates in shales due to pore proximity effects:implications for transport,reserves and well productivity[R].SPE 160099,2012.
[24] FIRINCIOGLU T,OZKAN E,OZGEN C.Thermodynamics of multiphase flow in unconventional liquids-rich reservoirs[R].SPE 159869,2012.
[25] WU Keliu,CHEN Zhangxin,LI Xiangfang,et al.Methane storage in nanoporous material at supercritical temperature over a wide range of pressures[J].Scientific Reports,2016,6:33461
[26] MORISHIGE K,FUJII H,UGA M,et al.Capillary critical point of argon,nitrogen,oxygen,ethylene,and carbon dioxide in MCM-41[J].Langmuir,1997,13(13):3494-3498.
[27] ZARRAGOICOECHEA G J,KUZ V A.Critical shift of a confined fluid in a nanopore[J].Fluid Phase Equilibria,2004,220(1):7-9.
[28] NELSON P H.Pore-throat sizes in sandstones,tight sandstones,and shales[J].AAPG Bulletin,2009,93(3):329-340.
[29] WEINAUG C F,KATZ D L.Surface tensions of methane-propane mixtures[J].Industrial and Engineering Chemistry,1943,35(2):239-246.
[30] ADAMSON A W.Physical Chemistry of Surfaces[M].5th ed.New York:John Wiley & Sons,1990.
[31] WILSON G M.A modified redlich-kwong equation-of-state,application to general physical data calculations[R].1969.
[32] RACHFORD H H JR,RICE J D.Procedure for use of electronic digital computers in calculating flash vaporization hydrocarbon equilibrium[J]. Journal of Petroleum Technology,1952,4(10):19.
[33] 赵跃军,宋考平,范广娟,等.酯类化合物降低原油与二氧化碳体系最小混相压力实验[J].石油学报,2017,38(9):1066-1072.
ZHAO Yuejun,SONG Kaoping,FAN Guangjuan,et al.The experiment for reducing the minimum miscible pressure of crude oil and carbon dioxide system with ester compounds[J].Acta Petrolei Sinica,2017,38(9):1066-1072.
[34] ABEDINI A,TORABI F.Oil recovery performance of immiscible and miscible CO₂ huff-and-puff processes[J].Energy & Fuels,2014,28(2):774-784.
[35] ABEDINI A,TORABI F.On the CO₂ storage potential of cyclic CO₂ injection process for enhanced oil recovery[J].Fuel,2014,124:14-27.
[36] CAO Meng,GU Yong’an.Oil recovery mechanisms and asphaltene precipitation phenomenon in immiscible and miscible CO₂ flooding processes[J].Fuel,2013,109:157-166.
[37] CAO Meng,GU Yong’an.Physicochemical characterization of produced oils and gases in immiscible and miscible CO₂ flooding processes[J].Energy & Fuels,2013,27(1):440-453.
[38] RAO D N.A new technique of vanishing interfacial tension for miscibility determination[J].Fluid Phase Equilibria, 1997,139(1/2):311-324.
[39] DINDORUK B,JOHNS R,ORR F M JR.Measurement and modeling of minimum miscibility pressure:a state-of-the-art review[J].SPE Reservoir Evaluation & Engineering,2021,24(2):367-389.
[40] 彭宝仔,罗虎,陈光进,等.用界面张力法测定CO₂与原油的最小混相压力[J].石油学报,2007,28(3):93-95.
PENG Baozi,LUO Hu,CHEN Guangjin,et al.Determination of the minimum miscibility pressure of CO₂ and crude oil system by vanishing interfacial tension method[J].Acta Petrolei Sinica,2007,28(3):93-95.
[41] 马铨峥,杨胜来,王敉邦,等.新疆吉木萨尔凹陷致密油藏最小混相压力实验研究[J].辽宁石油化工大学学报,2020,40(1):35-38.
MA Quanzheng,YANG Shenglai,WANG Mibang,et al.Experimental investigation on minimum miscible pressure of the tight oil reservoir in Jimsar sag,Xinjiang[J].Journal of Liaoning Shihua University,2020,40(1):35-38.
[42] ZHANG Kaiqiang,JIA Na,LI Songyan,et al.Rapid determination of interfacial tensions in nanopores:experimental nanofluidics and theoretical models[J].Langmuir,2019,35(27):8943-8949.

微-纳米受限空间原油-天然气最小混相压力预测方法

Prediction method for the minimum miscibility pressure of crude oil and natural gas in micro-nano confined space

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