高效悬浮酸在马五_1储层的研究及应用
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摘要
通过对马五1水平井岩心的分析,发现其含有大量的Si O2、Ca Si O3·H2O、Ca Mg2Cl·(H2O)12、Ca Al2O5等黏土矿物,其酸压后易导致酸渣沉积堵塞溶蚀孔道,影响酸化效果。在酸压用常规酸液中加入混悬剂(实验室合成)和分散剂(1831),研发出一种新型高效悬浮酸。实验结果表明,该悬浮酸可大大降低酸渣粒度,防止其絮凝抱团。悬浮酸残酸液可将酸渣稳定悬浮4 h而不沉淀和絮凝,并且该残酸液黏度较小,有利于酸压后返排。该悬浮酸添加剂与其它酸化助剂(缓蚀剂、铁离子稳定剂、助排剂等)配伍性良好,目前已在姬塬长9储层成功酸化11口井,增产效果明显,出水率下降,说明该体系适合用于姬塬长9储层酸化改造。
Through the analysis of nature core in mawu1 horizontal well,it contains large amounts of SiO2,CaSiO3·H2O,CaMg2Cl·( H2O)12,CaAl2O5 clay mineral,it's easy to lead to acid sludge deposit and block up the corrosion hole after acid fracture. Suspension agent( laboratory synthesis) and dispersant( 1831) were added to conventional acid that developed a new kind of efficient suspended acid. The experimental results show that the suspended acid can greatly reduce the sludge particle size and prevent its flocculation. Suspended acid reacted acid can keep acid sludge suspending 4 h without precipitating and flocculating,and the reacted acid viscosity is smaller that benefit the flowback after acid fracturing. The suspension acid additives have good compatibility with other acid additives( corrosion inhibitor and Fe stabilizer,cleanup additive,etc.)
Through the analysis of nature core in mawu1 horizontal well,it contains large amounts of SiO2,CaSiO3·H2O,CaMg2Cl·( H2O)12,CaAl2O5 clay mineral,it's easy to lead to acid sludge deposit and block up the corrosion hole after acid fracture. Suspension agent( laboratory synthesis) and dispersant( 1831) were added to conventional acid that developed a new kind of efficient suspended acid. The experimental results show that the suspended acid can greatly reduce the sludge particle size and prevent its flocculation. Suspended acid reacted acid can keep acid sludge suspending 4 h without precipitating and flocculating,and the reacted acid viscosity is smaller that benefit the flowback after acid fracturing. The suspension acid additives have good compatibility with other acid additives( corrosion inhibitor and Fe stabilizer,cleanup additive,etc.)
引文
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14 马兴芹.酸化用添加剂铁离子稳定剂评价新方法.石油工业技术监督,2005;44—45Ma Xingqin.New evaluation methods of acidification with Iron ion stabilizer.Technology Supervision in Petrolum Industry,2005;44—45
15徐兵威,郭建春,王世彬,等.岩石含铁量的测定及铁离子稳定剂室内评价研究.石油地质与工程,2009;23(1):123—127Xu Bingwei,Guo Jianchun,Wang Shibing,et al.The determination of iron content of rocks and iron ion stabilizer indoor evaluation research.Petroleum Geology and Engineering,2009;23(1):123 —127
16 刘音,袁青,徐杏娟,等.油田酸化用助排剂研究进展.石油化工应用,2014;33(2):5—7Liu Yin,Yuan Qing,Xu Xingjuan,et al.Research progress of cleanup additives for oilfield acidification.Petrochemical Industry Application.2014;33(2):5—7
17 陈兰.界面性质在酸化添加剂中的作用及应用.东营:中国石油大学,2007Chen Lan.Behaviour and application of interface property in additive for acidizing.Dongying:China University of Petroleum,2007
18 何静,王满学,王宁,等.不同化学助剂对压裂助排剂水溶液表界面张力的影响.内蒙古石油化工,2013;33,(7):64—66He Jing,Wang Manxue,Wang Ning,et al.Synergistic effect of chemical additives and fracturing cleanup additives on the solution interfacial tension.Inner Mongolia Petrochemical Industry,2013;33(7):64—66
2 张宗林.靖边气田北部马五41储层综合评价及开发目标区优选.西安,西北大学,2009Zhang Zonglin.Comprehensive evaluation&development object blocks'optimization of ma5-4-1reservoir in the northern part of jing bian gas field.Xi’an:Northwestern University,2009
3 昌俊杰,罗顺社,王正允,等.靖边潜台南部奥陶系马五1亚段储层特征研究.石油地质与工程,2008;22(5):41—43Chang Junjie,Luo Shunshe,Wang Zhengyun,et al.Study on reservoir characteristics of ordovician majiagou 51sub-member in south jingbian platform.Petroleum Geology and Engineering,2008;22(5):41 —43
4 赵泽,雷卞军,张聪,等.苏里格东部地区马五1-4亚段储层特征研究.重庆科技学院学报(自然科学版),2013;15(3):9—12Zhao Ze,Lei Bianjun,Zhang Cong,et al.Reservoir features of mawu1-4in eastern sulige gas field.Journal of Chongqing Institute of Technology(Natural Science Edition),2013;15(3):9—12
5 刘恩峰,沈吉,刘兴起,等.太湖岩芯重金属元素地球化学形态研究.地球化学,2004;33(6):602—607Liu Enfeng,Shen Ji,Liu Xingqi,et al.Speciation of heavy metals in lake taihu sediments of core MS.Geochimica,2004;33(6):602 —607
6 张伟.映秀-北川断裂带岩性、结构、构造特征研究—以汶川地震断裂带科学钻探二号孔(WFSD-2)岩芯为例.成都,成都理工大学,2012Zhang Wei.Study on characteristics of lithology,texture and structure of Yingxiu-Beichuan fault—take hole 2 cores of the Wenchuan Earthquake Fault Zone Scientific Drilling(WFSD-2)for example.ChengDu:Chengdu University of Technology,2012
7 杨前雄,单文文,熊伟,等.碳酸盐岩储层深层酸压技术综述.天然气技术,2007;1(5):46—49Yang Qianxiong,Shan Wenwen,Xiong Wei,et al.Summary of acid fracturing technology in deep carbonate reservoirs.Natural Gas Technology,2007;1(5):46—49
8 马利成,李爱山,张晓云,等.新型黏弹性表面活性自转向酸的研制及性能评价.油气地质与采收率,2007;14(5):98—100Ma Licheng,Li Aishan,Zhang Xiaoyun,et al.Performance appraisal of a new self-diverting acid with viscoelasticity and surface activity.Petroleum Geology and Recovery Efficiency,2007;14(5):98—100
9 蔡远红,罗炽臻.表面活性酸黏度影响因素及缓蚀控制.钻采工艺,2010;33(增刊):46—150Cai Yuanhong,Luo Zhizhen.Factors affecting viscosity of surface active acid and corrosion mitigation control.Drilling&Production Technology.2010;33(supplement):46—150
10 刘洁.几种油田水用缓蚀剂的合成、评价及机理研究.桂林:桂林理工大学,2013Liu Jie.Studies on the synthesis,evaluation and mechanism of several oilfield water corrosion inhibitors of schiff base.Guilin:Guilin University of Technology,2013
11 尚洪帅.油气田腐蚀环境中缓蚀剂的合成与复配性能研究.北京:北京化工大学,2012Shang Hongshuai.Synthesis of corrosion inhibitor used for oil and gas field and study their compound performance.Beijing:Beijing University of Chemical Technology,2012
12 江依义.酸化缓蚀剂的合成及其缓蚀性能研究.杭州:浙江大学,2013Jiang Yiyi.Synthesis of acid inhibitor and study of its inhibition efficiency.Hangzhou:Zhejiang University,2013
13 杨东梅,潘宝风,刘徐慧.新型酸化用铁离子稳定剂研制.化工时刊,2012;26(2):27—30Yang Dongmei,Pan Baofeng,Liu Xuhui.New acidification development iron ion stabilizer.Chemical Industry Times,2012;26(2):27 —30
14 马兴芹.酸化用添加剂铁离子稳定剂评价新方法.石油工业技术监督,2005;44—45Ma Xingqin.New evaluation methods of acidification with Iron ion stabilizer.Technology Supervision in Petrolum Industry,2005;44—45
15徐兵威,郭建春,王世彬,等.岩石含铁量的测定及铁离子稳定剂室内评价研究.石油地质与工程,2009;23(1):123—127Xu Bingwei,Guo Jianchun,Wang Shibing,et al.The determination of iron content of rocks and iron ion stabilizer indoor evaluation research.Petroleum Geology and Engineering,2009;23(1):123 —127
16 刘音,袁青,徐杏娟,等.油田酸化用助排剂研究进展.石油化工应用,2014;33(2):5—7Liu Yin,Yuan Qing,Xu Xingjuan,et al.Research progress of cleanup additives for oilfield acidification.Petrochemical Industry Application.2014;33(2):5—7
17 陈兰.界面性质在酸化添加剂中的作用及应用.东营:中国石油大学,2007Chen Lan.Behaviour and application of interface property in additive for acidizing.Dongying:China University of Petroleum,2007
18 何静,王满学,王宁,等.不同化学助剂对压裂助排剂水溶液表界面张力的影响.内蒙古石油化工,2013;33,(7):64—66He Jing,Wang Manxue,Wang Ning,et al.Synergistic effect of chemical additives and fracturing cleanup additives on the solution interfacial tension.Inner Mongolia Petrochemical Industry,2013;33(7):64—66
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