李雪,卢祥国,周彦霞,曹豹,刘义刚,山金城
LI Xue,LU Xiangguo,ZHOU Yanxia,CAO Bao,LIU Yigang,SHAN Jincheng

• 1:东北石油大学提高油气采收率教育部重点实验室
• 2:中海石油天津分公司生产部

摘要(Abstract)：

以油藏工程理论为指导,以数值模拟技术为研究手段,以NB35-2油田B17井组为研究平台,开展了单独水驱、调驱、热流体吞吐和"调驱+热采"联合作业数值模拟研究。在此基础上,优化了注入工艺参数,开展了矿场试验及效果分析。研究结果表明,"调驱+热采"联合施工开发经济效果最优。矿场试验表明:B17井组注入压力大幅度升高表明聚合物弱凝胶能够有效地封堵大孔道,调整吸液剖面;油井注入热流体后,井筒附近储层温度大幅度提高,原油黏度明显下降,渗流阻力减小,生产压差增加,原油产量大幅度提高。理论和实践都证明"调驱+热采"联合施工可以比单独调驱或热流体吞吐获得更好的增油效果,为海上稠油油藏高效开发探索出了一条有效途径。
Guided by reservoir engineering theories and by means of the numerical simulation techniques,taking Well Group B17 of NB35-2 Oilfield as the researching platform,the numerical simulation studies on the results of the individual water drive,profile control and flooding,thermal fluid huff and puff and " profile control and thermal floodings" combined operation are conducted.On the basis of the above,the parameters of the injection technology are optimized and furthermore the field tests and their effects are analyzed.The study results show that the economic effects of the combined operation are most perfect.The tests prove that the high-degree injection pressure rise of Well B17 demonstrates that the polymer weak gel can effectively block the big pores and then the fluid entry profiles can be adjusted;After injecting the thermal fluid into the oil wells,the reservoir temperature around the boreholes rises a great deal,the viscosity of the crude oil is obviously decreased,the percolating resistance is reduced,the differential pressure is increased and finally the oil production is enhanced greatly.The theories and practices have verified that the combined simulation can obtain much better effects of the oil increment than those of the individual method such as the separate profile control flooding and thermal fluid huff and puff,thus the effective approach for high-efficiency development of offshore heavy oil reservoirs has explored.

关键词(KeyWords)： 稠油油藏;聚合物凝胶调驱;多元热流体吞吐;调驱热采;协同作用
heavy oil reservoir;polymer gel flooding;multiple thermal fluid soak/huff and puff;profile control and thermal floodings;synergistic/cocodinant/cooperative effect

Abstract:

Keywords:

基金项目(Foundation): 国家“十二五”油气重大科技专项“转向海上稠油保压热采技术示范”(2011ZX05057-005-003)

作者(Author): 李雪,卢祥国,周彦霞,曹豹,刘义刚,山金城
LI Xue,LU Xiangguo,ZHOU Yanxia,CAO Bao,LIU Yigang,SHAN Jincheng

参考文献(References)：

• [1]周守为.海上油田高效开发技术探索与实践[J].中国工程科学,2009,11(10):55-60.
• [2]高孝田,吴官生,沈德煌,等.稠油油藏过热蒸汽驱蒸馏作用机理试验研究[J].石油天然气学报:江汉石油学院学报,2010,32(3):344-346.
• [3]李林祥.孤东油田稠油油藏提高采收率方法探讨[J].石油天然气学报:江汉石油学院学报,2008,30(2):300-304.
• [4]雷占祥,姜汉桥,陈月明,等.稠油蒸汽吞吐开采过程中焖井压降解释研究[J].大庆石油地质与开发,2006,25(4):92-95.
• [5]东晓虎,刘慧卿,张红玲,等.稠油油藏注蒸汽开发后转热水驱实验与数值模拟[J].油气地质与采收率,2012,19(2):50-53.
• [6]邵先杰.河南油田低品位稠油油藏蒸汽吞吐后进一步提高采收率研究[J].大庆石油地质与开发,2005,24(6):84-86.
• [7]姜维东,任艳滨,张运来,等.稠油油田油水相对渗透率和水驱油效率研究[J].大庆石油地质与开发,2008,27(4):50-53.
• [8]唐小旭,马跃,孙永涛.海上稠油多元热流体吞吐工艺研究及现场试验[J].中国海上油气,2011,23(3):185-188.
• [9]曾玉强,刘蜀知,王琴。等.稠油蒸汽吞吐开采技术研究概述[J].特种油气藏,2006,13(6):5-9.
• [10]祁成祥,李敬松,姜杰,等.海上稠油多元热流体吞吐注采参数多因素正交优化研究[J].特种油气藏,2012,19(5):86-90.
• [11]顾启林,孙永涛,郭娟丽,等.多元热流体吞吐技术在海上稠油油藏开发中的应用[J].石油化工应用,2012,31(9):8-10.
• [12]姜维东,卢祥国,刘义刚,等.稠油油藏有机铬交联聚合物调驱实验研究[J].中国海上油气,2008,20(2):102-105.
• [13]陈福有,汪宝新,刘明,等.二连蒙古林普通稠油油藏开发调剖堵水技术[J].大庆石油地质与开发,2005,24(4):56-58.
• [14]马奎前,蔡晖,吴小张,等.弱凝胶体系地层流体转向技术在海上稠油油田的应用[J].海洋石油,2011,31(2):65-67.
• [15]安显荣,刘锐.有机铬冻胶调剖技术在朝阳沟油田的应用[J].大庆石油地质与开发,2004,23(6):76-77.
• [16]蒋平,葛际江,张贵才,等.稠油油藏化学驱采收率的影响因素[J].中国石油大学学报:自然科学版,2011,35(2):166-171.
• [17]单玲,卢新莉,单荣青,等.稠油油藏凝胶调驱提高采收率技术[J].特种油气藏。2010,17(2):72-75.
• [18]王闯.渤海NB35-2油田调驱剂筛选及其性能评价[D].大庆:东北石油大学,2012.
• [19]周亚萍,赵庆辉,刘宝良,等.化学驱油方法提高稠油油藏采收率实验研究[J].精细石油化工进展,2011,12(5):3-9.
• [20]崔盈贤,张健,赵文森,等.南堡NB35-2油田化学辅助热水驱油的试验研究[J].石油天然气学报:江汉石油学院学报,2013,35(6):124-126.
• [21]王家震.喇嘛甸油田聚驱后蒸汽驱提高采收率研究[J].大庆石油地质与开发,2008,27(5):114-116.