渤海油田自生热体系室内研究
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摘要
稠油热化学增效技术在陆上油田相对比较成熟,但与陆上油田相比,海上油田有其特殊性,因此,需要开展针对海上油田特点的热采化学增效技术研究。①通过实验手段优选出了适合于渤海油田的自生热体系,该体系低浓度下就可产生较高的热量,并且无毒害性;②通过控制催化剂的类型和浓度,实现了自生热体系达峰时间的控制;并通过矿场试验验证了该自生热化学增效体系能有效地降低稠油黏度、溶解固体石蜡、清洗有机垢,能有效提高油藏渗透率,提高原油产量;③筛选出的自生热催化剂是一种多元弱酸,可有效控制达峰时间和减少有毒副产物产生,同时不腐蚀油套管,更加适合海上平台的应用条件。
The thermochemical synergy technology of developing heavy oil is relatively mature onshore,but isn't mature offshore for their own particularities. Therefore,it is necessary to carry out the research on the thermochemical synergy technology for offshore oilfields. The autogenous heat system suitable for Bohai oilfield is optimized,which can produce high heat at low concentration and is non-toxic by experiment. The time for the autogenous heat system to reach its peak value can be controlled by controlling the type and concentration of the catalysts. Field experiments show that the autogenic thermochemical synergistic system can effectively reduce the viscosity of heavy oil,dissolve solid paraffin and clean organic filth,and consequently improve reservoir permeability effectively and increase crude oil production. By the way,the autogenic heat catalyst is a kind of multi-component weak acid,which can effectively control the peak time and reduce toxic by-products. At the same time,it doesn't corrode oil casing. So it is more suitable for offshore platform.
The thermochemical synergy technology of developing heavy oil is relatively mature onshore,but isn't mature offshore for their own particularities. Therefore,it is necessary to carry out the research on the thermochemical synergy technology for offshore oilfields. The autogenous heat system suitable for Bohai oilfield is optimized,which can produce high heat at low concentration and is non-toxic by experiment. The time for the autogenous heat system to reach its peak value can be controlled by controlling the type and concentration of the catalysts. Field experiments show that the autogenic thermochemical synergistic system can effectively reduce the viscosity of heavy oil,dissolve solid paraffin and clean organic filth,and consequently improve reservoir permeability effectively and increase crude oil production. By the way,the autogenic heat catalyst is a kind of multi-component weak acid,which can effectively control the peak time and reduce toxic by-products. At the same time,it doesn't corrode oil casing. So it is more suitable for offshore platform.
引文
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8 张学刚,王秀宇,王冠华,等.铵盐与亚硝酸盐化学生热体系实验研究[J].应用化工,2016,45(2):393-396Zhang Xuegang,Wang Xiuyu,Wang Guanhua,et al. Experimental study on the thermal system of ammonium salt and nitrite chemical students[J]. Applied Chemistry,2016,45(2):393-396
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2 杨建华,素萍,香丽,等.井筒化学生热解堵技术的研究与应用[J].清洗世界,2008(9):31-34.Yang Jianhua,Su Ping,Xiang Li,et al. Research and application of wellbore chemical pyrolysis plugging technology[J]. Cleaning the World,2008(9):31-34
3 刘志明,段雅峰,孙崇伟.热化学反应体系研究及其在油田解堵中的应用[J].化学与生物工程,2006(9):51-53Liu Zhiming,Duan Yafeng,Sun Chongwei. Research on thermochemical reaction system and its application in oil field plugging removal[J]. Chemical and Biological Engineering,2006(9):51-53
4 赵宇光.化学生热技术在油井解堵的应用[J].中国石油和化工标准与质量,2013,33(9):21Zhao Yuguang. Application of chemical student thermal technology in well plugging removal[J]. China Petroleum and Chemical Industry Standard and Quality,2013,33(9):21
5 张雷平.自生热增能压裂工艺技术在七里村采油厂的应用[J].中国石油和化工标准与质量,2013,34(4):80Zhang Leiping. Application of self-generated thermal fracturing technology in qilicun oil production plant[J]. China Petroleum and Chemical Industry Standard and Quality,2013,34(4):80
6 何春百,张健,崔盈贤,等.海上油田蒸汽吞吐化学增效技术研究[J].科学技术与工程,2017,17(5):172-176He Chunbai,Zhang Jian,Cui Yingxian,et al. Research on chemical synergistic effect of steam stimulation in offshore oil fields[J]. Science Technology and Engineering,2017,17(5):172-176
7 孙林,杨万有,李旭光,等.天然气水合物酸化-自生热气开采技术研究[J].特种油气藏,2018,25(3):149-153Sun Lin,Yang Wanyou,Li Xuguang,et al. Research on natural gas hydrate acidification-autogenic heat gas exploitation technology[J].Special Oil and Gas Reservoir,2018,25(3):149-153
8 张学刚,王秀宇,王冠华,等.铵盐与亚硝酸盐化学生热体系实验研究[J].应用化工,2016,45(2):393-396Zhang Xuegang,Wang Xiuyu,Wang Guanhua,et al. Experimental study on the thermal system of ammonium salt and nitrite chemical students[J]. Applied Chemistry,2016,45(2):393-396
9 娄毅,杨胜来,王玉霞,等. NH4Cl和Na NO2化学生热体系对储层损害的研究[J].油田化学,2011,28(3):292-295Lou Yi,Yang Shenglai,Wang Yuxia,et al. Research on the damage of NH4Cl and Na NO2student thermal system to reservoir[J]. Oilfield Chemistry,2011,28(3):292-295