埕岛油田不动管柱堵水方法研究
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摘要
由于埕岛油田属于海上油田,油井堵水存在局限性。施工时要求不动管柱,堵剂要求海水配制、环境友好、耐剪切。本文主要从堵剂、配套工作液和堵水工艺等方面研究了埕岛油田不动管柱堵水。针对埕岛油田条件(油藏温度65℃、海水矿化度29217 mg·L-1)优选出冻胶型堵剂和冻胶泡沫型堵剂。冻胶型堵剂研究了氧化还原铬冻胶、有机铬冻胶和酚醛树脂冻胶,针对常用冻胶配方进行性能评价,包括冻胶成冻时间、冻胶强度、冻胶的稳定性、抗剪切性能、封堵能力及耐冲刷性能等方面,得到了成冻时间和冻胶强度可调、稳定性及应用性能好的系列冻胶配方。冻胶泡沫型堵剂主要优选了起泡液各组剂包括气体的优选、起泡剂的优选、稳泡剂的优选和冻胶配方的优选。并对泡沫冻胶的起泡体积、半衰期和对地层封堵性进行评价,同时对冻胶泡沫的机理进行研究。针对埕岛油田条件研究了洗油前置液、后置液和破胶剂三种配套工作液,得到了埕岛油样的洗油前置液配方和破胶剂配方。研究了用高浓聚合物预处理地层的堵水方法,正交试验法优化了堵水参数,包括高浓聚合物质量分数、高浓聚合物注入量、注入速度和地层渗透率极差。试验表明不动管柱堵水方法能达到有效封堵目的层和保护非目的层的目的,能显著提高采收率。根据室内试验对埕岛CB11A-1井进行了堵水施工,达到了较好的堵水效果。
As for Chengdao Oilfield belong to offshore oil field, so exist limitations of water shutoff .When oil well Water Shutoff ,it ask for without Pulling String ,and water shutoff agent ask for make up with sea water , environmentally and resistant to shear . The key aspects about water shutoff without Pulling String in the Chengdao Oil Field were studied in this paper, including water shutoff agent, matching treatment fluid and water shutoff technology etc. Gel-type and frothy gel type water shutoff agents were chosen for further study according to the formation conditions of the Chendao oil field. oxido reduction chromium gel, organic chromium gel and phenolic resin gel were studied for Gel-typ, which is about gel application properties including gelation time, gel strength, resistance to shearing, shut off capacity and resistance to erosion etc. This research gains a serial of gel formulation with adjustable gelation time, strength and satisfactory stability. Optimise gas, optimise foaming agent, optimise stabilite agent and optimise Gel formula were chosen for frothy gel type water shutoff agents further study. Preflush,afterflush and gel breaker agents were studied at the Chengdao condition, obtaining preflush formulations fit forChengdao oil sample and gel breaker agents formulations. Studied the water shutoff method ,witch pre-treatment formation with high concentration of polymer, optimize water shutoff parameters by means of perpendicularity test, including mass fraction of polymer, intake volume of polymer, injection rate of polymer and permeability. Experiments show that the means of water shutoff without Pulling String can blank off water yield formation and safeguard oil layer, enhanced oil recovery apparently. According to the laboratory testing, water shutoff implement forCB11A-1,and attaind preferable water shutoff effectiveness.
As for Chengdao Oilfield belong to offshore oil field, so exist limitations of water shutoff .When oil well Water Shutoff ,it ask for without Pulling String ,and water shutoff agent ask for make up with sea water , environmentally and resistant to shear . The key aspects about water shutoff without Pulling String in the Chengdao Oil Field were studied in this paper, including water shutoff agent, matching treatment fluid and water shutoff technology etc. Gel-type and frothy gel type water shutoff agents were chosen for further study according to the formation conditions of the Chendao oil field. oxido reduction chromium gel, organic chromium gel and phenolic resin gel were studied for Gel-typ, which is about gel application properties including gelation time, gel strength, resistance to shearing, shut off capacity and resistance to erosion etc. This research gains a serial of gel formulation with adjustable gelation time, strength and satisfactory stability. Optimise gas, optimise foaming agent, optimise stabilite agent and optimise Gel formula were chosen for frothy gel type water shutoff agents further study. Preflush,afterflush and gel breaker agents were studied at the Chengdao condition, obtaining preflush formulations fit forChengdao oil sample and gel breaker agents formulations. Studied the water shutoff method ,witch pre-treatment formation with high concentration of polymer, optimize water shutoff parameters by means of perpendicularity test, including mass fraction of polymer, intake volume of polymer, injection rate of polymer and permeability. Experiments show that the means of water shutoff without Pulling String can blank off water yield formation and safeguard oil layer, enhanced oil recovery apparently. According to the laboratory testing, water shutoff implement forCB11A-1,and attaind preferable water shutoff effectiveness.
引文
[1]王仲茂等.高新采油技术.石油工业出版社.1998.9
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[3]赵福麟.采油化学.石油大学出版社.1989.5
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[20] Hardy M, Botermans W, Hamouda A, et al. The First Carbonate Field Application of a New Organically Crosslinked Water Shutoff Polymer System [R]. SPE 50738, 1999
[21] Vasquez J, Civan F, Shaw T M, et al. Laboratory Evaluation of High-temperature Conformance Polymer Systems [R]. SPE 80904, 2003
[22] AL-Muntasheri G A, Nasr-El-Din H A, Peters J A, et al. Investigation of a High Temperature Organic Water Shutoff Gel: Reaction Mechanisms [R]. SPE 97530, 2005
[23] Eoff L S, Dalrymple E D, Everett D M, et al. Worldwide Field Applications of a Polymeric Gel System for Conformance Applications [R]. SPE 98119, 2006
[24] Vasquez J, Jurado I, Santillan A, et al. Organically Crosslinked Polymer System for Water Reduction Treatments in Mexico [R]. SPE 104134, 2006
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[26] Reddy B R, Eoff L, Dalrymple E D, et al. A Natural Polymer-based Crossliner System for Conformance Gel System[R]. SPE 75163, 2002
[27] Botermans C W, Van Batenburg D W, Bruining J. Relative Permeability Modifiers: Myth or Reality? [R]. SPE 68973, 2001
[28] Liang J, Seright R S. Wall-effect/gel-droplet Model of Disproportionate Permeability Reduction [R]. SPE 74137, 2001: 268～272
[29] Stavland A, Nilsson S. Segregated Flow is the Governing Mechanism of Disproportionate Permeability Reduction in Water and Gas Shutoff [R]. SPE 71510, 2001
[30]郭立志,戴彩丽,王业飞,等.埕东油田东区西北部Ng32层调驱试验中驱油剂的研究[J].石油大学学报(自然科学版),2003,27(2):67～69
[31] Palmet B J, Fu D, Card R, et al. Scale Removal: US, 0 055439 [P]: 2002-05-09
[32]魏跃进,郝明圈,王凤清,等.ClO2复合解堵工艺技术[J].石油钻采工艺,2001,23(4):66～67
[33] Palmet B J, Fu D, Card R, et al. Scale removal: US, 0 055439 [P]: 2002-05-09.
[34]赵福麟,戴彩丽,王业飞,等.油井堵水概念的内涵及其技术关键[J].石油学报,2006,27(5) :69-72.
[35]唐孝芬,刘戈辉,李良雄.堵水调剖用暂堵剂ZDJ-98的研制与性能评价[J].油田化学,1999 , 16 (2) : l28 -131.
[36]李阳,徐英霞,李延军.埕岛油田馆陶组油藏高产开发技术[J].油气采收率技术,1998 , 5 (2) : 36-40.
[37]戴彩丽,王业飞,赵福麟,等.缓交联铬冻胶体系影响因素分析[J].石油大学学报(自然科学版),2002,26(6):56～59
[38]戴彩丽,王业飞,冷强,等.长成冻时间的深部调剖剂研究[J].西安石油学院学报,2003,18(1):21～23
[39]唐孝芬,李红艳,刘玉章,等.交联聚合物冻胶调堵剂性能评价指标及方法[J].石油钻采工艺,2004,26(2):49～53
[40]赵福麟.采油用剂.山东东营:石油大学出版社,1996:2.
[41]徐婷,李秀生,张学洪.聚合物驱后提高原油采收率平行管试验研究[J].石油勘探与开发,2004,31(6):98～100
[42]徐婷,李秀生,张学洪.聚合物驱后再利用技术室内试验研究[J].江汉石油学院学报,2004,26(2):114～117
[2]马宝岐等.油田化学原理与技术.石油工业出版社.1995.1
[3]赵福麟.采油化学.石油大学出版社.1989.5
[4]佟曼丽.油田化学.石油大学出版社.1996.11
[5]惠晓霞.油田化学基础.石油工业出版社.1988.1
[6]赵福麟.采油用剂.山东东营:石油大学出版社,1996:57.
[7]白宝君,李宇乡,刘翔鄂.我国油田化学堵水调剖新进展.石油钻采工艺,1998;20(3):64～68.
[8]肖传敏,王正良.油田化学堵水调剖综述.精细石油化工进展,2003;4(3):43～46.
[9]李朝霞,雷江西.国外油井控水技术综述.国外油田工程,1997;13(6):29～32.
[10] White J L,Goddord J E,Phillips H M.Use of polymers to control water production in oil wells.JPT,1973;25(2):143-150
[11] Mckown K W,Rothenberger D.Methods of selectively reducing the water permeabilities of subterranean formations.US 5 181 568,1993
[12] Keller H F J,Nowak T J,Fischer P W et al.Selective plugging of subterranean formation.US2 792 893,1957
[13] Dollarhide F E.Selective prevention of water and brine introduction into mineral producing strata.US3 181 611,1965
[14] Sparlin D D,Wahl H A.Method for reducing the production of water from oil wells.US3 939 912,1976
[15] Felber B J,Smith L R.Lignosulfonate gels for sweep improvement in flooding operations.US 3 897 827,1975
[16] Lawrence D D,Felber B J.Formation treatment with silicate activated Lignosulfonate gel.US 4 210 206,1980
[17]杨鸿剑,乔爱新,江静.有机铬/HPAM交联体系的室内研究[J].钻采工艺,2001,24(5):94～95,98
[18]王斌,王栋,李补鱼.一种深度调剖用聚合物/有机铬冻胶体系[J].油田化学,1999,16(1):24～26,20
[19] Sydansk R D, Southwell G P. More than 12 Years’Experience with a Successful Conformance Control Polymer-gel Technology [R]. SPE 66558, 2000: 270～278
[20] Hardy M, Botermans W, Hamouda A, et al. The First Carbonate Field Application of a New Organically Crosslinked Water Shutoff Polymer System [R]. SPE 50738, 1999
[21] Vasquez J, Civan F, Shaw T M, et al. Laboratory Evaluation of High-temperature Conformance Polymer Systems [R]. SPE 80904, 2003
[22] AL-Muntasheri G A, Nasr-El-Din H A, Peters J A, et al. Investigation of a High Temperature Organic Water Shutoff Gel: Reaction Mechanisms [R]. SPE 97530, 2005
[23] Eoff L S, Dalrymple E D, Everett D M, et al. Worldwide Field Applications of a Polymeric Gel System for Conformance Applications [R]. SPE 98119, 2006
[24] Vasquez J, Jurado I, Santillan A, et al. Organically Crosslinked Polymer System for Water Reduction Treatments in Mexico [R]. SPE 104134, 2006
[25] Vasquez J, Jurado I, Santillan A, et al. Organically Crosslinked Polymer System for Water Reduction Treatments in Mexico [R]. SPE 104134, 2006
[26] Reddy B R, Eoff L, Dalrymple E D, et al. A Natural Polymer-based Crossliner System for Conformance Gel System[R]. SPE 75163, 2002
[27] Botermans C W, Van Batenburg D W, Bruining J. Relative Permeability Modifiers: Myth or Reality? [R]. SPE 68973, 2001
[28] Liang J, Seright R S. Wall-effect/gel-droplet Model of Disproportionate Permeability Reduction [R]. SPE 74137, 2001: 268～272
[29] Stavland A, Nilsson S. Segregated Flow is the Governing Mechanism of Disproportionate Permeability Reduction in Water and Gas Shutoff [R]. SPE 71510, 2001
[30]郭立志,戴彩丽,王业飞,等.埕东油田东区西北部Ng32层调驱试验中驱油剂的研究[J].石油大学学报(自然科学版),2003,27(2):67～69
[31] Palmet B J, Fu D, Card R, et al. Scale Removal: US, 0 055439 [P]: 2002-05-09
[32]魏跃进,郝明圈,王凤清,等.ClO2复合解堵工艺技术[J].石油钻采工艺,2001,23(4):66～67
[33] Palmet B J, Fu D, Card R, et al. Scale removal: US, 0 055439 [P]: 2002-05-09.
[34]赵福麟,戴彩丽,王业飞,等.油井堵水概念的内涵及其技术关键[J].石油学报,2006,27(5) :69-72.
[35]唐孝芬,刘戈辉,李良雄.堵水调剖用暂堵剂ZDJ-98的研制与性能评价[J].油田化学,1999 , 16 (2) : l28 -131.
[36]李阳,徐英霞,李延军.埕岛油田馆陶组油藏高产开发技术[J].油气采收率技术,1998 , 5 (2) : 36-40.
[37]戴彩丽,王业飞,赵福麟,等.缓交联铬冻胶体系影响因素分析[J].石油大学学报(自然科学版),2002,26(6):56～59
[38]戴彩丽,王业飞,冷强,等.长成冻时间的深部调剖剂研究[J].西安石油学院学报,2003,18(1):21～23
[39]唐孝芬,李红艳,刘玉章,等.交联聚合物冻胶调堵剂性能评价指标及方法[J].石油钻采工艺,2004,26(2):49～53
[40]赵福麟.采油用剂.山东东营:石油大学出版社,1996:2.
[41]徐婷,李秀生,张学洪.聚合物驱后提高原油采收率平行管试验研究[J].石油勘探与开发,2004,31(6):98～100
[42]徐婷,李秀生,张学洪.聚合物驱后再利用技术室内试验研究[J].江汉石油学院学报,2004,26(2):114～117