聚驱开发后期剩余油及综合挖潜技术研究
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摘要
随着聚合物驱工业化生产规模的不断扩大,聚合物驱不同开发阶段的跟踪调整技术越来越倍受关注,由于聚合物驱具有开采周期短,调整勤的特点,因此全过程跟踪调整技术一直是聚驱开发研究的重点,尤其在目前主力油层聚驱面积不断减少,聚驱后提高采收率技术还在探索的情况下,如何更进一步改善聚合物驱效果,进一步提高聚合物驱的最终采收率,减缓聚驱后期含水回升速度,增加阶段产油量是聚合物驱的一个主要研究方向。大庆油田的全过程跟踪调整技术注重整个过程的大的方向调整,尤其对注聚后剩余油的定量描述还不是很深入,为了使聚合物驱的剩余油挖潜技术得到更深入的发展,本论文选择了萨尔图油田南部开发区某聚驱区块开展了聚驱开发后期剩余油及综合挖潜技术研究,利用数值模拟、注入采出井测井资料、密闭取芯资料及精细地质研究成果,分析聚驱开发后期平面上和垂向上宏观剩余油分布规律及沉积单元内部剩余油分布规律。提出不同类型剩余油挖潜技术和方法。对进一步提高聚合物驱的最终采收率,减缓聚驱后期含水回升速度,增加阶段产油量及油田的可持续发展有重要意义。同时也将为其它注聚区块指明研究思路和方向,提供技术支持和经验。
Along with the expanding of polymer flooding industries, the following improving technologies in different development phases of polymer flooding are paid more and more attention .The improving technique of the whole processes has been the main point of the polymer flooding exploitation.How to improve the polymer effection and enhance the finally recovery ratio and slow down the rising speed of water content and increase the amount of oil in phase is a main research direction of polymer flooding. Daqing oil-field follows the big direction adjustment in the whole polymer flooding exploitation processes. Particularly the measurable desceiption of remaining oil is not thorough. In order to further develop the enhanced oil recovery of remaining oil , so this paper selects a zones in the south area of Saertu oil-field to make studies on the distribution character of remaining oil and integrated enhanced methods for polymer flooding at the late development period. Using reservoir simulation, well logging data of wells, informations of sealing core drilling wells and the careful research findings of geology, Analyzing the macroscopic distribution character of remaining oil in plane and vertical and the interior distribution regularity in sedimentary unit. Based on this, the main technology of integrative enhanced oil recovery is given here.It is very significant for oil-field developing in improving the polymer effection and enhancing the finally recovery ratio and slowing down the rising speed of water content and increasing the amount of oil in phase. Also will indicate the research way of thinking and direction for the other, provide the technique support and experience.
Along with the expanding of polymer flooding industries, the following improving technologies in different development phases of polymer flooding are paid more and more attention .The improving technique of the whole processes has been the main point of the polymer flooding exploitation.How to improve the polymer effection and enhance the finally recovery ratio and slow down the rising speed of water content and increase the amount of oil in phase is a main research direction of polymer flooding. Daqing oil-field follows the big direction adjustment in the whole polymer flooding exploitation processes. Particularly the measurable desceiption of remaining oil is not thorough. In order to further develop the enhanced oil recovery of remaining oil , so this paper selects a zones in the south area of Saertu oil-field to make studies on the distribution character of remaining oil and integrated enhanced methods for polymer flooding at the late development period. Using reservoir simulation, well logging data of wells, informations of sealing core drilling wells and the careful research findings of geology, Analyzing the macroscopic distribution character of remaining oil in plane and vertical and the interior distribution regularity in sedimentary unit. Based on this, the main technology of integrative enhanced oil recovery is given here.It is very significant for oil-field developing in improving the polymer effection and enhancing the finally recovery ratio and slowing down the rising speed of water content and increasing the amount of oil in phase. Also will indicate the research way of thinking and direction for the other, provide the technique support and experience.
引文
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[2]于兰兄,韩树柏,张玉贵.确定剩余油分布技术[J].西安地质学院学报,1997,19(4):69～75
[3]谭圣军,陈营,汪戈壁.硼中子寿命测井确定剩余油分布[J].油气地质与采收率,2001,8 (2):6～78
[4]成绥民,苏彦春,林加恩,梅启亮.高含水期剩余油分布的现代试井解释[J].油气井测试,2000, 9(3):1～7
[5]成绥民,梅启亮,林加恩,苏彦春.高含水剩余油分布的现代试井解释理论与方法[J].油气井测试,1997,6(4):10～15
[6]陆建林,李国强,樊中海,李朝勇,薛玉伟.高含水期油田剩余油分布研究[J].石油学报,2001. 22 (5):48～52
[7]胡博仲,聚合物驱油采油工程[M].石油工业出版社,1997.1
[8]童宪章.天然水驱和人工注水油藏的统计规律探讨[J].石油勘探与开发,1978.25(3):42～47
[9]俞启泰.水驱特征曲线研究[J].新疆石油地质,2001,22(3):56～59
[10]俞启泰,谢绪权,李炎波.石油可采储量计算方法[S].中华人民共和国石油天然气行业标准,1998, 22 (5):32～38
[11]俞启泰.水驱特征曲线研究(六)[J].新疆石油地质,1999,20(2):141～145
[12]宋考平,宋洪才,吴文祥.油藏数值模拟理论基础[S].第1版.北京:石油工业出版社,1996,5～7
[13]李淑霞,陈月明等.利用井间示踪剂确定剩余油饱和度的方法[J].石油勘探与开发,2001,28(2):73～75
[14]贾振岐,张丽囤,王立军,殷代印.油田开发设计与分析方法[S].第1版.哈尔滨工业大学出版社,1994,141～147 [I5]林承焰.剩余油形成与分布[S].第1版.东营:石油大学出版社,2000,1～11
[16]谢丛蛟,艾敬旭,黎锡瑜.小层剩余油的技术经济研究方法[J].石油实验地质,2000,22 (2):180～183
[17]魏斌,陈建文,郑浚茂,李胜军.应用储层流动单元研究高含水油田剩余油分布[J].地学前缘,2000,7(4):26～33
[18]杨愚新,庞跃武,卢春阳,彭碧群.应用三维高分辨率地震技术进行剩余油预测的方法探讨[J].石油物资,2001,40(3):68～75
[19]赵跃华,翁大丽,唐金星.应用图像处理技术研究双河油田剩余油分布特征[J].石油勘探与开发,1996,23(2):57～63
[20]鲁国甫,杨永利,冯毅,卢晓鸥,刘峥君,陈小瑜.应用核磁共振成像技术研究特高含水期剩余油分布[J].江汉石油学院学报,2001, 23(增):98～99
[21 ]胡雪涛,李允.随机网络模拟研究微观剩余油分布[J].石油学报,2000, 7 (4 ): 152～156
[22]黄宏才,相九涛,李建华,谭海芳.产出剖面资料计算剩余油饱和度的方法探讨[J].测井技术,2000,24 (4): 287～290
[23]黄文芬,王允诚,,王建勇,张伟伟,陈德坡用灰聚类方法定量分析剩余油潜力大小[J].成都理工学院学报2001, 28 (3):306～309
[24]王新海、韩大匡、郭尚平.聚合物驱油机理和应用[J].石油学报,1994,15(1):83～91
[25]赵永胜,魏国章,陆会民,钟玲.聚合物驱能否提高驱油效率的几点认识[J].石油学报,2001, 22(3):43～46
[26]王德民.王德民院士报告论文集[M].第1版.北京:石油工业出版社,2001,403～420
[27]夏惠芬,王德民,刘中春,杨清彦.粘弹性聚合物溶液提高微观驱油效率的机理研究[J].石油学报,2001,22(4):60～65