新型排水采气用抗凝析油泡排剂

doi:10.7623/syxb202007008

石油学报 ›› 2020, Vol. 41 ›› Issue (7): 865-874.DOI: 10.7623/syxb202007008

新型排水采气用抗凝析油泡排剂

瞿超超¹, 刘正中², 殷鸿尧¹, 鲁光亮³, 李祖友³, 冯玉军¹

1. 四川大学高分子研究所四川成都 610065;
2. 中国石油化工股份有限公司西南油气分公司四川成都 610016;
3. 中国石油化工股份有限公司西南油气分公司川西采气一厂四川德阳 618000

收稿日期:2019-03-29 修回日期:2019-12-20 出版日期:2020-07-25 发布日期:2020-08-08
通讯作者: 冯玉军,男,1971年3月生,1994年获西南石油学院学士学位,1999年获西南石油学院博士学位,现为四川大学研究员、博士生导师,主要从事软物质材料及油田化学的研究。Email:yjfeng@scu.edu.cn
作者简介:瞿超超,男,1994年11月生,2016年获湖北大学学士学位,2019年获四川大学硕士学位,现为东风本田汽车有限公司涂装工程师,主要从事汽车涂装技术及汽车涂装材料方面的研究。Email:chaochaoqu123@foxmail.com.cn
基金资助:
国家科技重大专项"低压低产井高效泡排剂的研发与应用研究"（2016ZX05048-004-007）和国家自然科学基金面上项目（No.21773163）资助。

A new anti-condensate foaming agent for drainage gas recovery

Qu Chaochao¹, Liu Zhengzhong², Yin Hongyao¹, Lu Guangliang³, Li Zuyou³, Feng Yujun¹

1. Polymer Research Institute, Sichuan University, Sichuan Chengdu 610065, China;
2. Sinopec Southwest Oil and Gas Company, Sichuan Chengdu 610016, China;
3. No.1 Gas Production Plant, Sinopec Southwest Oil and Gas Company, Sichuan Deyang 618000, China

Received:2019-03-29 Revised:2019-12-20 Online:2020-07-25 Published:2020-08-08

摘要/Abstract

摘要：

泡沫排水采气是提高低压低产井天然气产量的重要手段之一，但对于含凝析油气井，由于普通泡沫具有遇油消泡的特点，导致常规泡排剂难以产生足量泡沫，从而使排液效果变差。利用阴离子表面活性剂SDS、两性离子表面活性剂CHSB、氟碳表面活性剂PFBS三者的协同作用研制了耐油泡排剂COT。采用罗氏泡沫仪、高温高压可视化泡沫仪、激光共聚焦显微镜研究了凝析油含量、温度、压力和矿化度对泡沫性能的影响，揭示了耐油机理，并与常规泡排剂XA进行了对比研究。研究结果表明，在常压、80℃下，随着凝析油含量的升高，COT泡沫的最大起泡高度（H_max）和半衰期（t_1/2）逐渐升高，而XA的泡沫性能却逐渐减弱；在高压下，随着温度升高，COT泡沫的H_max不受影响，但t_1/2却逐步下降。当固定温度时，随着压力升高，COT泡沫的H_max和t_1/2均显著提升，且在相同的压力和温度下，COT的泡沫综合性能优于XA；随着矿化度升高，COT泡沫的H_max略微下降，t_1/2却显著上升。通过研究油滴与泡沫液膜之间的相互作用发现，当油滴接触到COT泡沫液膜时，会形成稳定的假乳液膜，阻止油滴继续渗入，从而形成稳定的耐油泡沫。新型泡排剂已在12口气井得到了现场应用，累积增产天然气26.35×10⁴m³。

关键词: 排水采气, 耐油泡沫, 表面活性剂复配, 假乳液膜, 动态泡沫

Abstract:

Foam drainage gas recovery is one of the important means to increase the gas production of low-pressure and low-production wells. However, defoaming occurs when foams encounter oil in condensate-bearing gas wells, so it is difficult for conventional foaming agent to generate sufficient foams, which makes the drainage effect worse. The oil-resistant foaming agent COT was developed using the synergistic effect of the anionic surfactant SDS, the zwitterionic surfactant CHSB, and the fluorocarbon surfactant PFBS. Using a ROSS-Miles foam meter, a high-temperature and high-pressure visual foam meter, and a laser scanning confocal microscope, the effect of condensate content, temperature, pressure, and salinity on foam performance was studied, and the mechanism of oil resistance was revealed. Furhter, a comparative study is performed between COT and the conventional foaming agent XA. The results show that at normal pressure and 80℃, the maximum foaming height (H_max)and half-life time (t_1/2)of COT foam gradually increased with the increasing condensate content, while the foam performance of XA gradually weakened. Under high pressure, as the temperature increased, the H_max of COT foam was not changed, but t_1/2 gradually decreased. When the temperature was fixed, with the increasing of pressure, the H_max and t_1/2 of COT foam increased significantly, and the comprehensive performance of COT foam was superior to XA under the same pressure and temperature. With the increasing of salinity, the H_max of COT foam decreased slightly, but t_1/2 increased significantly. By studying the interaction between the oil droplets and the foam film, it is found that when the oil droplets contact with the COT foam film, a stable pseudoemulsion film is formed preventing the oil droplets from continuing to penetrate, thereby forming stable and oil-resistant foams. The foaming agent developed based on the above-mentioned laboratory research has been applied in 12 gas wells in the field, with the cumulative gas production increased by 26.35×10⁴m³.

Key words: drainage gas recovery, oil resistant foam, complex formulation of surfactants, pseudoemulsion film, dynamic foam

中图分类号:

TE39

瞿超超, 刘正中, 殷鸿尧, 鲁光亮, 李祖友, 冯玉军. 新型排水采气用抗凝析油泡排剂[J]. 石油学报, 2020, 41(7): 865-874.

Qu Chaochao, Liu Zhengzhong, Yin Hongyao, Lu Guangliang, Li Zuyou, Feng Yujun. A new anti-condensate foaming agent for drainage gas recovery[J]. Acta Petrolei Sinica, 2020, 41(7): 865-874.

参考文献

[1] 殷鸿尧,鲁光亮,李祖友,等.川西气田井底积液污染物分析及对策研究[J].油田化学,2018,35(1):97-101.
YIN Hongyao,LU Guangliang,LI Zuyou,et al.Composition analysis of downhole pollutants from gas wells in western Sichuan basin and corresponding countermeasures[J].Oilfield Chemistry,2018,35(1):97-101.
[2] 张书平,白晓弘,樊莲莲,等.低压低产气井排水采气工艺技术[J].天然气工业,2005,25(4):106-109.
ZHANG Shuping,BAI Xiaohong,FAN Lianlian,et al.Techniques of gas recovery by water drainage for gas wells with low pressure and production[J].Natural Gas Industry,2005,25(4):106-109.
[3] YANG Jiang,JOVANCICEVIC V,RAMACHANDRAN S.Foam for gas well deliquification[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2007,309(1/3):177-181.
[4] SALEH S,AL-JAMAEY M.Foam-assisted liquid lifting in low pressure gas wells[R].SPE 37425,1997.
[5] LIU Lie,LI Xiaobai,TONG Li,et al.Effect of surfactant additive on vertical two-phase flow[J].Journal of Petroleum Science and Engineering,2014,115:1-10.
[6] VAN NIMWEGEN A T,PORTELA L M,HENKES R A W M.The effect of surfactants on air-water annular and churn flow in vertical pipes.Part 1:Morphology of the air-water interface[J].International Journal of Multiphase Flow,2015,71:133-145.
[7] 张振楠,孙宝江,王志远,等.产液气井泡沫排液起泡能力分析[J].石油学报,2019,40(1):108-114.
ZHANG Zhennan,SUN Baojiang,WANG Zhiyuan,et al.The foamability analysis of foam drainage in liquid-producing gas wells[J].Acta Petrolei Sinica,2019,40(1):108-114.
[8] 李丽,汪雄雄,刘双全,等.水平井筒气水流动规律及影响因素[J].石油学报,2019,40(10):1244-1254.
LI Li,WANG Xiongxiong,LIU Shuangquan,et al.Gas-water flow law in horizontal wellbore and its influencing factors[J].Acta Petrolei Sinica,2019,40(10):1244-1254.
[9] 白晓弘,吴革生,王效明,等.含凝析油气井泡沫排水采气工艺研究及应用[J].石油化工应用,2008,27(2):35-39.
BAI Xiaohong,WU Gesheng,WANG Xiaoming,et al.Research and application of foam draining gas recovery in oiliness gas well[J].Petrochemical Industry Application,2008,27(2):35-39.
[10] ARNAUDOV L,DENKOV N D,SURCHEVA I,et al.Effect of oily additives on foamability and foam stability.1.
Role of interfacial properties[J].Langmuir,2001,17(22):6999-7010.
[11] HADJⅡSKI A,TCHOLAKOVA S,DENKOV N D,et al.Effect of oily additives on foamability and foam stability.2.
Entry barriers[J].Langmuir,2001,17(22):7011-7021.
[12] MENSIRE R,LORENCEAU E.Stable oil-laden foams:formation and evolution[J].Advances in Colloid and Interface Science,2017,247:465-476.
[13] SMITH D H.Surfactant-based mobility control[M].Washington DC:American Chemistry Society,1988.
[14] KOCZO K,LOBO L A,WASAN D T.Effect of oil on foam stability:aqueous foams stabilized by emulsions[J].Journal of Colloid & Interface Science,1992,150(2):492-506.
[15] FAMEAU A L,SALONEN A.Effect of particles and aggregated structures on the foam stability and aging[J].Comptes Rendus Physique,2014,15(8/9):748-760.
[16] RIO E,DRENCKHAN W,SALONEN A,et al.Unusually stable liquid foams[J].Advances in Colloid and Interface Science,2014,205:74-86.
[17] KOCZO K,TSELNIK O,FALK B.Silicon-based foamants for foam assisted lift of aqueous-hydrocarbon mixtures[R].SPE 141471,2011.
[18] VIKINGSTAD A K,AARRA M G,SKAUGE A.Effect of surfactant structure on foam-oil interactions:comparing fluorinated surfactant and alpha olefin sulfonate in static foam tests[J].Colloids and Surfaces A:Physicochemical & Engineering Aspects,2006,279(1/3):105-112.
[19] 王旭,周兴付,李祖友,等.一种抗凝析油抗盐泡排剂及其制备方法[P].中国,201710666054.5,2017-11-10.
WANG Xu,ZHOU Xingfu,LI Zuyou,et al.The preparation method of oil-tolerant and salt-tolerant foam agent[P].CN201710666054.5,2017-11-10.
[20] 全国表面活性剂和洗涤剂用品标准化技术委员会.表面活性剂洗涤剂试验方法:GB/T 13173-2008[S].北京:中国标准出版社,2008.
National Technical Committee on Surfactant and Detergent of Standardization Administration of China.Surface active agents-detergents-testing methods:GB/T 13173-2008[S].Beijing:China Standards Press,2008.
[21] 章杨,张亮,陈百炼,等.高温高压CO₂泡沫性能评价及实验方法研究[J].高校化学工程学报,2014,28(3):535-541.
ZHANG Yang,ZHANG Liang,CHEN Bailian,et al.Evaluation and experimental study on CO₂ foams at high pressure and temperature[J].Journal of Chemical Engineering of Chinese Universities,2014,28(3):535-541.
[22] 油田化学专业标准化技术委员会.排水采气用起泡剂CT5-2:SY/T 5761-1995[S].北京:石油工业出版社,1996.
Technical Committee on Standardization of Oilfield Chemistry.Foaming agent for drainage and gas production CT5-2:SY/T 5761-1995[S].Beijing:Petroleum Industry Press,1996.
[23] LEE J,NIKOLOV A,WASAN D.Stability of aqueous foams in the presence of oil:on the importance of dispersed vs solubilized oil[J].Industrial & Engineering Chemistry Research,2013,52(1):66-72.
[24] 吴轶君,孙琳,蒲万芬.高温下高矿化度对泡沫性能的影响[J].石油化工,2017,46(5):619-625.
WU Yijun,SUN Lin,PU Wanfen.Effect of salinity on foaming properties at high temperature[J].Petrochemical Technology,2017,46(5):619-625.
[25] 胡绍彬,徐庆龙,郭玲玲,等.采出液含水对生产气油比的影响规律[J].石油学报,2018,39(1):116-121,128.
HU Shaobin,XU Qinglong,GUO Lingling,et al.Influence of water cut of produced liquid on produced gas-oil ratio[J].Acta Petrolei Sinica,2018,39(1):116-121,128.
[26] 王敉邦,杨胜来,郑祖号,等.高压条件下含气高凝油析蜡特征[J].石油学报,2019,40(12):1511-1518.
WANG Mibang,YANG Shenglai,ZHENG Zuhao,et al.Wax precipitation characteristics of high pour-point live oil under high pressure[J].Acta Petrolei Sinica,2019,40(12):1511-1518.
[27] MONSALVE A,SCHECHTER R S.The stability of foams:dependence of observation on the bubble size distribution[J].Journal of Colloid and Interface Science,1984,97(2):327-335.
[28] BUCHAVZOV N,STUBENRAUCH C.A disjoining pressure study of foam films stabilized by mixtures of nonionic and ionic surfactants[J]. Langmuir,2007,23(10):5315-5323.
[29] SUN Lin,WEI Peng,PU Wanfen,et al.The oil recovery enhancement by nitrogen foam in high-temperature and high-salinity environments[J].Journal of Petroleum Science and Engineering,2016,147:485-494.
[30] 崔正刚.表面活性剂、胶体与界面化学基础[M].北京:化学工业出版社,2013:67-68.
CUI Zhenggang.Fundamentals of surfactants,colloids,and interface chemistry[M].Beijing:Chemical Industry Press,2013:67-68.

新型排水采气用抗凝析油泡排剂

A new anti-condensate foaming agent for drainage gas recovery

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