基于新型压力指数的调剖选井决策方法研究
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摘要
传统的压力指数决策方法和充满度决策方法在调剖选井决策应用中存在区分度小、可比性差、易引起误判、受选用计算时间影响和浪费测试费用等不足。为了提高调剖选井决策的准确性,在计算压力指数的基础上,综合考虑井口压力的下降速度,提出了一种用于调剖选井决策的新型压力指数,并基于新型压力指数形成了调剖选井决策方法。研究表明,新型压力指数既能反映目前的储层渗流能力,也能反映井口压力变化程度,该值越小,越应该进行调剖。在渤海某油田的应用结果表明,新型压力指数的决策结果要优于传统的压力指数决策方法和充满度决策方法,提高了决策准确性。该研究为油田调剖选井提供了重要的技术支持。
The application of traditional pressure index and fullness decision-making methods for well profile control are limited by relatively little discrimination,poor comparability,misjudgment,calculation efficiency,cost waste,etc. Based on the pressure index calculation,the wellhead pressure decline rate was comprehensively taken into consideration to improve the decision-making accuracy for profile control treatment. A new pressure index for profile control well decision-making was proposed to provide a new well decision-making for profile control treatment. Research indicates that the new pressure index can effectively characterize both the reservoir seepage capacity and wellhead pressure changing. Low pressure index well is preferred for profile control treatment. The application in a reservoir of Bohai Oilfield illustrates that the new decision-making method with new pressure index is superior to the traditional pressure index and fullness decision-making methods,which could improve the decision-making accuracy. This research could provide certain technical basis for oilfield profile control well selection.
The application of traditional pressure index and fullness decision-making methods for well profile control are limited by relatively little discrimination,poor comparability,misjudgment,calculation efficiency,cost waste,etc. Based on the pressure index calculation,the wellhead pressure decline rate was comprehensively taken into consideration to improve the decision-making accuracy for profile control treatment. A new pressure index for profile control well decision-making was proposed to provide a new well decision-making for profile control treatment. Research indicates that the new pressure index can effectively characterize both the reservoir seepage capacity and wellhead pressure changing. Low pressure index well is preferred for profile control treatment. The application in a reservoir of Bohai Oilfield illustrates that the new decision-making method with new pressure index is superior to the traditional pressure index and fullness decision-making methods,which could improve the decision-making accuracy. This research could provide certain technical basis for oilfield profile control well selection.
引文
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[19]孟祥海,刘义刚,邹剑,等.海上稠油油田深部调驱选井决策方法研究[J].石油地质与工程,2017,31(3):87-90.
[20]雷占祥,陈月明,徐耀东.应用模糊层次评判法进行油藏调剖适宜度综合评价[J].大庆石油地质与开发,2007,26(3):82-86.
[21]白宝君,唐孝芬,李宇乡.区块整体调剖优化设计技术研究[J].石油勘探与开发,2000,27(3):60-63.
[22]靳彦欣,史树彬,付玮,等.特高含水油藏深部调剖技术界限研究[J].特种油气藏,2015,22(3):77-80.
[23]冯其红,王森,陈存良,等.低渗透裂缝性油藏调剖选井无因次压力指数决策方法[J].石油学报,2013,34(5):932-937.
[24]姜汉桥,姚军,姜瑞忠.油藏工程原理与方法[M].东营:中国石油大学出版社,2006:236-238.
[2]屈亚光,孙敬.复杂断块油藏砂体连通性对水驱效果的影响[J].特种油气藏,2017,24(2):94-98.
[3]冯其红,陈存良,王森,等.低渗透油藏井间动态连通性研究方法[J].特种油气藏,2013,20(5):100-102.
[4]冯有奎,唐颖,闫伟,等.疏松砂岩稠油油藏调剖试验效果评价[J].油气地质与采收率,2015,22(3):124-128.
[5]唐孝芬,吴奇,刘戈辉,等.区块整体弱凝胶调驱矿场试验及效果[J].石油学报,2003,24(4):58-61.
[6]张云宝,卢祥国,王婷婷,等.渤海油藏优势通道多级封堵与调驱技术[J].油气地质与采收率,2018,25(3):82-88.
[7]武海燕,罗宪波,张廷山,等.深部调剖剂研究新进展[J].特种油气藏,2005,12(3):1-3.
[8]熊春明,唐孝芬.国内外堵水调剖技术最新进展及发展趋势[J].石油勘探与开发,2007,34(1):83-88.
[9]贾晓飞,雷光伦,贾晓宇.注水井深部调剖技术研究现状及发展趋势[J].特种油气藏,2009,16(4):6-12.
[10]赵福麟.压力指数决策技术及其应用进展[J].中国石油大学学报(自然科学版),2011,35(1):82-88.
[11]王元胜.PI决策技术在中原油田的应用[J].石油勘探与开发,1999,26(6):81-83.
[12]熊显忠,杨永超,李乔林,等.PI决策技术在断块油田调剖中的应用[J].石油地质与工程,2001,15(4):22-23.
[13]李宜坤,赵福麟,刘一江.区块整体调剖的压力指数决策技术[J].中国石油大学学报(自然科学版),1997,21(2):39-42.
[14]LIU Yuzhang,BAI Baojun,SHULER P J.Application and development of chemical-based conformance control trements in China oil fields[C].SPE99641,2006:1-10.
[15]缪明才,尚朝辉,吴柏志,等.一种提高采收率的新技术在老油区的应用研究[J].西南石油大学学报(自然科学版),2001,23(6):51-55.
[16]赵福麟,张贵才,周洪涛,等.二次采油与三次采油的结合技术及其进展[J].石油学报,2001,22(5):38-42.
[17]冯其红,陈月明,姜汉桥,等.模糊数学在区块整体调剖选井中的应用[J].石油勘探与开发,1998,25(3):76-79.
[18]房灵太,陈月明,闫军,等.基于变权的模糊层次分析法在低渗油藏调剖选井中的应用[J].特种油气藏,2007,14(3):81-84.
[19]孟祥海,刘义刚,邹剑,等.海上稠油油田深部调驱选井决策方法研究[J].石油地质与工程,2017,31(3):87-90.
[20]雷占祥,陈月明,徐耀东.应用模糊层次评判法进行油藏调剖适宜度综合评价[J].大庆石油地质与开发,2007,26(3):82-86.
[21]白宝君,唐孝芬,李宇乡.区块整体调剖优化设计技术研究[J].石油勘探与开发,2000,27(3):60-63.
[22]靳彦欣,史树彬,付玮,等.特高含水油藏深部调剖技术界限研究[J].特种油气藏,2015,22(3):77-80.
[23]冯其红,王森,陈存良,等.低渗透裂缝性油藏调剖选井无因次压力指数决策方法[J].石油学报,2013,34(5):932-937.
[24]姜汉桥,姚军,姜瑞忠.油藏工程原理与方法[M].东营:中国石油大学出版社,2006:236-238.