松辽盆地白垩纪地层序列与年代地层.pdf

第二作者简介 谭 伟,男,1965年生,1986年毕业于成都地质学院物探系,硕士,工程师,现从事科研管理工作。地址:(163712)黑龙江省大庆市让胡路区。松辽盆地白垩纪地层序列与年代地层黄清华 谭 伟 杨会臣(大庆石油管理局勘探开发研究院)摘 要 利用裂变径迹法和K2Ar稀释法对松辽盆地白垩纪年代地层进行了研究。结果表明,泉头组及其以上地层的实测年龄与生物地层、磁性地层所推断的各组的地质年龄基本一致,上、下白垩统的界线应划在青山口组和泉头组之间;而泉头组以下地层,实测年龄与生物地层、磁性地层所推断的年龄值有较大的偏差(认为火石岭组应为早白垩世最早期沉积),并据此对下白垩统各组的地质时代归属提出了新的见解。主题词 裂变径迹法 K2Ar稀释法 年代地层 地层序列 中生代 松辽盆地 松辽盆地石油勘探开发30多年来,盆地地层研究积累了丰富的资料,但由于古湖泊自身封闭的特点,孕育了具有强烈地方色彩的生物群,不同门类生物演化的独特性及对生物认识的片面性,导致了人们对具体事物认识的差异性。时至今日,对松辽盆地火石岭组的地质时代归属、侏罗 白垩系界线及上、下白垩统的划分仍存在争议13。应用年代地层学研究盆地内泉头组 嫩江组部分钻井的沉积岩样品及营城组、火石岭组的火山岩、火山碎屑岩样品,为解决盆地内这一套地层的地层划分及其地质时代归属问题提供了依据。一、地层序列及其地质特征1,地层序列钻井、地震、测井、生物地层、磁性地层、层序地层等资料研究表明,松辽盆地中生代地层序列自下而上分别为火石岭组、沙河子组、营城组、登娄库组、泉头组、青山口组、姚家组、嫩江组、四方台组和明水组。2,地质特征(1)火石岭组为盆地裂陷早期的沉积产物,主要为一套玄武岩、安山岩夹凝灰质砂岩、砾岩,零星分布于早期几个分割的断陷之中,与下伏地层为角度不整合接触。沉积岩中见少量植物和孢粉化石。(2)沙河子组为盆地裂陷发育期的沉积产物,主要为一套灰色、灰白色砂岩、泥岩夹凝灰岩及煤层,零星分布于早期几个分割的断陷之中,与下伏地层为平行不整合接触。沉积岩中见热河生物群特征化石分子狼鳍鱼、东方叶肢介、三尾拟蜉蝣、费尔干蚌等。(3)营城组为盆地裂陷晚期的沉积产物,主要为安山岩、安山玄武岩、凝灰岩夹灰色、灰绿色砂岩、砾岩、泥岩及煤层,零星分布于早期几个分割的断陷之中,与下伏地层为角度不整合接触。火山岩的广泛分布,表明此时的盆地构造运动、火山活动重新趋于活跃。沉积岩中见少量介形类、叶肢介、植物及孢粉化石。(4)登娄库组为盆地构造演化从裂陷期转向坳陷期、分割断陷逐渐形成统一湖盆期的沉积产物,是一套在浅水环境条件下,湖盆快速充填形成的以灰色、灰绿色砂泥岩互层夹杂色泥岩的沉积建造。登娄库组在全盆地广泛分布,产少量松花江生物群的化石分子,如介形类、叶肢介、植物及孢粉等,与下伏地层为角度不整合接触。(5)泉头组为盆地坳陷发展早期的沉积产物,主要为一套在浅水环境和湖盆快速充填作用下形成的棕红色、暗紫红色泥岩与紫灰色、灰绿色砂泥岩建造,局部地区见火山岩。泉头组的红层在全盆地广泛分布,产少量松花江生物群的化石分子,与下伏地层为平行不整合接触。(6)青山口组51第18卷 第6期 大庆石油地质与开发 P1G1O1D1D1 1999年12月 1995-2004 Tsinghua Tongfang Optical Disc Co.,Ltd.All rights reserved.为盆地坳陷发展期的沉积产物,沉积了湖盆第一次大规模湖侵作用下形成的暗色泥岩、油页岩,局部地区见火山岩及膨润土。青山口组暗色泥岩中含丰富的生物化石,其属种分异度、丰富度较下伏地层显著增大,化石纹饰结构趋向复杂,出现了典型的松花江生物群特征分子(如圆蒙古星介等)。青山口组在盆地内广布,与下伏地层为整合接触。(7)姚家组为盆地坳陷发展期湖盆相对萎缩、浅水环境条件下湖盆快速充填作用的沉积产物,主要为一套灰绿色、紫红色砂泥岩建造,局部地区含膏盐层。姚家组的红层在全盆地广泛分布,与下伏地层相比,产出的化石属种分异度、丰富度明显降低。与下伏地层青山口组为平行不整合接触。(8)嫩江组为盆地坳陷发展期的沉积产物,沉积了湖盆演化史上第二次大规模湖侵作用下形成的暗色泥岩、油页岩及砂岩,局部地区见膨润土。嫩江组沉积时期,其湖盆范围超出了现今盆地边界,为湖盆演化发展史上的鼎盛期。嫩江组产典型的松花江生物群特征分子,生物种类繁多,纹饰结构复杂。嫩江组与下伏地层姚家组之间为整合接触。(9)四方台组为盆地萎缩期的产物,主要为一套灰绿色、棕红色、杂色砂泥岩建造。四方台组为湖盆演化发展史上第三套红层,在盆地内分布较广,产明水生物群特征分子。与下伏地层之间为角度不整合接触。(10)明水组为湖盆萎缩期产物,主要为一套灰色、灰绿色、杂色砂泥岩建造。明水组产出的生物化石种类较多,出现了一些特化的生物类群。与下伏地层为整合接触。二、测年方法及样品的选取用于直接测定沉积岩、火成岩年龄的同位素年代学方法主要有K2Ar稀释法、Rb2Sr等时线法、40Ar/39Ar法和磷灰石、锆石裂变径迹法。王璞王君等4曾利用K2Ar稀释法和Rb2Sr等时线法分别对青山口组、嫩江组泥质岩的沉积年龄及嫩江组的泥质碳酸盐岩、泉头组的蒸发盐岩的同位素测年进行研究,并探讨了上、下白垩统的界线划分问题。方大钧等(1987年)在利用K2Ar稀释法研究松辽盆地北部营城组及其以下火山岩地层的基础上探讨了相关层位的地质时代归属问题。目前,裂变径迹测年法在盆地研究中应用比较广泛,该方法具有用样量少、测年范围广(为102109a)等优点。且由于沉积岩中普遍存在自生磷灰石矿物,因此选用裂变径迹测年法对营城组以上地层进行研究。考虑到磷灰石矿物对盆地中构造热事件反映比较明显,裂变径迹退火带与镜质体反射率具有一定的相关性,因此,在选样品前先对地层中镜质体反射率进行研究,优选出Ro 016%,已进入裂变径迹退火带,样品的测年方法主要选用K2Ar稀释法,所选样品来源于盆地不同地区。三、测年结果及地质时代归属从采用K2Ar稀释法所获得的营城组和火石岭组的地质年龄数据(表1)中可以看出,火石岭组的年龄值为131130138150Ma,营城组的年龄主峰值为109140117140Ma,这与方大钧等于1987年所测得的年龄值是一致的,而与生物地层和磁性地层所推断的年龄值有较大出入。从表1中还可以看出,营城组除一个年龄主峰值外,还有一个年龄峰值为8612397182Ma,这可能与青山口组沉积时期的火山事件有表1 松辽盆地白垩纪地层(K2Ar稀释法)年龄数据地 层采样井(深度)岩 性地质年龄(Ma)营城组火石岭组杜613井(1 17715m)凝灰岩1111202110杜63井(1 20110m)凝灰岩1171401130杜403井(1 03210m)凝灰岩901481129杜13井(1 72110m)凝灰岩971820192杜 25井(1 55710m)凝灰岩871951106江33井(58615m)安山岩1131703100江55井(64810m)安山玄武岩1091402120江53井(81910m)玄武岩1141802120富45井(17910m)凝灰岩1101001110富28井(45310m)凝灰岩1131901120富61井(48910m)凝灰岩1141602120芳深5井(3 30810m)凝灰岩931531188芳深6井(3 41310m)凝灰岩861230189双深10井(3 43818m)闪长玢岩1321105190宋深2井(2 98416m)橄榄斜长石1311305190宋深2井(3 18817m)辉石安山岩1331506110杜22井(2 20415m)闪长玢岩138150517061大庆石油地质与开发 P1G1O1D1D1 第18卷 第6期 1995-2004 Tsinghua Tongfang Optical Disc Co.,Ltd.All rights reserved.关。分析K2Ar稀释法所测得的年龄值偏小的原因,主要有以下3个方面:由于Ar是气体,对温度很敏感,放射性成因的40Ar在后期地质作用影响下易丢失,从而导致所测年龄值偏低;受盆地内后期构造和火山事件的影响,一般矿物不能保持原始的封闭体系,而往往是蚀变以后的封闭体系,因而测定出蚀变以后保留的封闭体系年龄,自然要明显低于原始年龄;用稀释法测年往往会引起大气氩的污染,污染量的大小直接影响测年数据的值。从采用裂变径迹法所获得的地层年龄数据(表2)中可以看出,营城组的地层年龄主峰值为113121Ma,这与K2Ar稀释法所获得的年龄值大体上是一致的;泉头组的年龄值为98120Ma,这与王璞王君等4利用Rb2Sr等时线法所获得的泉头组地层年龄(12212611Ma)相比明显偏小;青山口组的年龄值为9398Ma,姚家组为8288Ma,嫩江组的年龄主峰值为7282Ma,青山口组和嫩江组的裂变径迹年龄值与王璞王君等4利用K2Ar稀释法所获得的同期地层年龄值是相互一致的。另外,从嫩江组的裂变径迹表2 松辽盆地白垩纪地层(裂变径迹法)年龄数据地 层采样井(深度)岩 性地质年龄(Ma)嫩江组姚家组青山口组泉头组营城组古505井(97610m)砂 岩7610古505井(99410m)砂 岩809古505井(1 00015m)粉砂岩799古505井(1 01010m)粉砂岩8111拉52气19井(37810m)砂 岩726拉52气19井(38210m)砂 岩807拉52气19井(39410m)砂 岩8712杜24井(1 07810m)粉砂岩7110杜24井(1 08210m)粉砂岩8013杜24井(1 09810m)粉砂岩8814杜24井(1 10410m)粉砂岩8210杜24井(1 10710m)粉砂岩8913杜610井(71710m)粉砂岩799杜403井(94210m)砂 岩8211杜403井(94510m)砂 岩8612杜403井(95210m)砂 岩8812杜403井(96810m)砂 岩9812杜403井(96910m)砂 岩9712杜24井(1 21910m)砂 岩9313富34井(58510m)凝灰岩9712杜605井(94110m)砂 岩12012杜605井(96010m)砂 岩10210杜605井(96810m)砂 岩1149东35井(78710m)砂 岩9811江22井(63210m)安山玄武岩11314杜13井(1 41010m)凝灰岩9616杜13井(1 62110m)凝灰岩11611杜13井(1 62510m)凝灰岩12112年龄数值看,拉52气19井39410m处样品的年龄值为8712Ma、杜24井1 09810m处样品为8814Ma、杜24井1 10710m处样品为8913Ma,3个样品的年龄值偏大,这可能与陆源碎屑岩中的磷灰石矿物混入有关。依据Harland(1982)所主张的侏罗 白垩系同位素年代划分方案,侏罗、白垩系界线的同位素年龄为144Ma,上、下白垩统的界线年龄为9715Ma。那么,松辽盆地火石岭组至明水组这一套地层都应划归为白垩系,上、下白垩统的界线应划在泉头组和青山口组之间。另外,对于争议较大的火石岭组,目前已在火山岩沉积夹层中发现了少量植物和孢粉化石,孢粉组合以具气囊的松柏类花粉含量高为特点,出现了早白垩世代表性分子Aequitriradites,Densoisporites等,孢粉组合面貌反映出白垩纪色彩。因此,火石岭组应为盆地内早白垩世最早期的沉积产物,其地质时代相当于欧洲的凡兰吟期 别里阿斯期。综上所述,根据K2Ar稀释法和裂变径迹法所测得的年龄数据,参考Harland(1982)的侏罗 白垩系同位素年代划分方案,对松辽盆地白垩纪地层,特别是泉头组以下地层的地质时代进行了重新厘定,建立了新的年代地层划分方案(表3)。需要说明的是,由于所选测年样品及测年方法等多种因素的影响,所获得的年龄数据具有一定的不确定性,新的年代地层学划分方案还有待今后工作进一步证实。表3 松辽盆地白垩纪年代地层划分纪世期W1B1Harland(1982)划分同位素年代方案松辽盆地地层层序白垩纪侏罗纪晚白垩世早白垩世晚侏罗世马斯特里赫特期坎潘期三冬期康尼亚克期土伦期赛诺曼期阿尔必期阿普第期巴列姆期戈特列夫期凡兰吟期别里阿斯期提唐期65Ma73Ma83Ma8715Ma8815Ma91Ma9715Ma113Ma119Ma125Ma134Ma138Ma144Ma明水组四方台组嫩江组姚家组青山口组泉头组登娄库组营城组沙河子组火石岭组(下转28页)711999年12月 黄清华等:松辽盆地白垩纪地层序列与年代地层 1995-2004 Tsinghua Tongfang Optical Disc Co.,Ltd.All rights reserved.三、系统的结构及性能1,系统的组成部分系统功能结构如图5所示,系统主要由5部分组成。图5 系统功能结构图2,系统运行环境本系统可在Sun Sparc平台上运行,绘图仪为A0幅面;操作系统为Sun OS41112及以上;窗口系统为MOTIF;软件以C语言进行编程。3,系统接口本系统采用ASC 码格式,数据格式按石油天然气总公司的勘探开发数据库的标准存贮数据,这对于不同的计算机和操作系统,仅需要做极简单的转换工作,从而保证了与后续系统的数据交换。4,系统运行效果该系统能代替人工划分对比油层界线工作,使油层界线划分对比标准更加统一,减少了人为因素及技术智能的差异。对没有断层的井,油层界线自动对比精度达到84%以上;对有断层的井,油层界线自动对比精度达到74%以上。经人工干预后准确率与人工解释结果对比可达100%,其解释速度每口井可在30min内完成,提高工效8倍以上。四、结 论(1)本系统运用专家系统及多种数学算法,以测井曲线矢量化数据为基础,依据“旋回对比,分级控制”的油层对比方法及操作规程,实现了油层界线划分对比的计算机化。(2)本系统解决了计算机实现油层界线划分对比过程中的一些技术关键,其油层界线划分对比过程基本上与人工划分对比过程相一致,使得解释人员能够较快掌握、运用本系统。(3)本系统界面安排合理,直观、明了,人2机交互功能齐全、简便、易学,易于解释人员操作。(4)本系统在断点预测上,由于断层本身的复杂性,不同断层面的预测精度以及同一个断层面的不同区域的预测精度相差甚远,造成其自动对比判断误差较大,使得人工干预量较大,这一问题应在今后工作中不断探索、改进、解决。参 考 文 献1,任海滨等:油层厚度解释系统的研究与应用,大庆石油地质与开发,1998(17)4。(收稿日期 1999203225)编辑 赵成国(上接17页)四、结 语(1)K2Ar稀释法和裂变径迹法同位素年代学方法在盆地地层研究中的应用,为解决松辽盆地各组段的地质时代归属,特别是深层哑地层的划分与对比提供了新的参考依据,并为解决盆地内侏罗 白垩系以及上、下白垩统的界线划分问题提供了同位素年龄的新佐证。(2)火石岭组是盆地内早白垩世最早期的沉积产物,侏罗 白垩系界线应划在火石岭组底部。(3)上、下白垩统的界线应划在青山口组和泉头组之间,青山口组应为晚白垩世最早期沉积。(4)沙河子组的地质时代应相当于戈特列夫期,营城组相当于巴列姆期,登娄库组相当于阿普第期,泉头组相当于晚阿普第 阿尔必期。参考文献1,叶得泉等:中国北方含油气区白垩系,石油工业出版社(北京),1990。2,高瑞祺等:松辽盆地白垩纪石油地层,石油工业出版社(北京),1994。3,陈丕基等:松花江生物群与东北白垩系地层系列,古生物学报,1998(37)3 380385。4,王璞王 君等:白垩纪非海相沉积层序同位素年龄的直接测定研究及盆地分析中的同位素年代学方法,世界地质,1994(13)3 124130。(收稿日期 1998211230)编 辑 宋玉梅82大庆石油地质与开发 P1G1O1D1D1 第18卷 第6期 1995-2004 Tsinghua Tongfang Optical Disc Co.,Ltd.All rights reserved.TO DEVELOP PETROLEUM GEOLOGY THEORYTO SEEK MORE OIL AND GAS FIELDSYang Jiliang(Exploration and Development ResearchInstitute of Daqing Petroleum Administrative Bureau,Hei2long jiang,163712,P.R.China)pp1-2.ABSTRACT This paper discusses the recognition and de2velopment of the geological theory which directs the oil andgas seeking in Songliao Basin.Then it suggests that geologi2cal theory,engineering technology and organization manage2ment must be improved so as to provide more backing re2serves for Daqing exploration area.KEY WORDS Source control theory,Geological theory,Engineering technology,Organization managementANALYSISOFDEEPOVERPRESSUREINWANGJIATUN-SHENGPING AREAMeng Qingwu,Cai Xiyuan&Li Ti(E&D ResearchInstitute of Daqing Petroleum Administrative Bureau,Hei2longjiang,163712,P.R.China)pp3-5.ABSTRACTOverpressure was thought to be existed in theshallow layer of Songliao basin because several-hundred-meter-think regional shaly rock distributes steadily inQingshankou Formation,Nenand Nenmembers.Al2though there is not steadily distributed thicker shaly rock inthe deep part of Songliao basin,we believe that the deeppart is better than shallower part when considering the geo2logic conditions of forming abnormal pressure.The calcula2tion in Wangjiatun-Shengping area also suggests that theresurely exist deep abnormal pressure and it affects the distri2bution of natural gas in this area.KEY WORDS Deep layer,Formation overpressure,Preser2vation condition,Gas reservoir,SealCHARACTERISTIC AND RESERVOIR FORMATIONRULE OF THE SEGMENT IN LANLIAO STEEPBANK ZONE OF DONGPU DEPRESSIONZhu Junling(Exploration and Development Science Re2search Institute of Zhongyuan Petroleum Exploration Bureau,Henan,457001,P.R.China),Sun Shunmin(Eco2nomics research Institute of Zhongyuan Petroleum ExplorationBureau)and Wu Xiaoling(Exploration and DevelopmentScience Research Institute of Zhongyuan Petroleum Explo2ration Bureau)pp6-8.ABSTRACT A comprehensive study on the geologic seismicphase of Lanliao steep Bank Z one indicates that segmentsdistribute as skirt-like type in the steep bank zone.Withthe effect of fracturing activity and provenance direction,thevertical and lateral segments size,reservoir characteristicand reservoir formation rules are different,Laterally,thesegments in north part is more developed than that in southpart.Well developed segments distribute in the 2 and 3 lay2ers of Sha III member of Lower Tertiary in Maogang area,14 layers in Sha III member of Lower Tertiary in Qian2liyuan area,3 and 4 layers in Sha III member of Lower Ter2tiary in Baimiao area.The central part of these segments arefavorable parts for oil and gas reservoirs exploration.KEY WORDS Lanliao steep bank zone,Segment,Litho2logic oil and gas reservoir,Lithologic-structural oil and gasreservoirCHARACTERISTIC OF ANPENG DEEP SERIES OFSTRATA AND RULE OF FRACTURES DISTRIBU2TIONZhao Yuehua,Li Xianlu and Zhang Yan(Explorationand Development Research Institute of Henan Petroleum Ex2ploration Bureau,Henan,473132,P.R.China)pp9-11.ABSTRACT This paper studies the mercury injection,castbody,electron microscope,X-diffraction,single well log2ging interpretation and areal prediction of fractures combin2ing with some other geologic and fluid testing data.The con2clusion is that the reservoirs in Anpeng deep series of stratahave a low maturity of mineral and apparent stability sec2ondary accretion.They are poor reservoirs with mainly verylow permeability and middle pore throat distribution.Reser2voir fractures develop with mainly middle and small horizon2tal fractures.The development of fractures is related tostructures position and earth stress.Large fractures damagethe reservoirs seriously.KEY WORDS Low permeable reservoir,Pore structure,Fractures distribution,Effect factorAPPLICATION OFTRENDSURFACERESIDUALANALYSIS IN THE STUDY ON RESERVOIR MICRO-STRUCTURELi Xinfeng,Gao Hongyan and Tian Yanchun(Explo2rationandDevelopmentResearchInstituteofDaqingPetroleum Administrative Bureau,Heilong jiang,163712,P.R.China)pp12-14.ABSTRACT This paper uses the method of trend surfaceresidual analysis to determine the micro-structure of under2ground reservoirs and gives the local high and low points ofthe micro-structure.Then it identifies residual oil distribu2tion using reservoir micro-structure,providing geologicalevidence for adjusting and seeking potential and studyingproduction performance in the later stage of an oil field.Meanwhile,plotting residual contour diagrams with comput2ers improves the efficiency of the study.KEY WORDS Reservoir micro-structure,Trend surfaceanalysis,Residual analysis,Residual oil distributionSTRATIGRAPHIC SUCCESSION AND CHRONOSRA2TA OF CRETACEOUS IN SONG LIAO BASINHuang Qinghua,Tan Wei and Yang Huichen(Explo2rationandDevelopmentResearchInstituteofDaqingPetroleum Administrative Bureau,Heilong jiang,163712,1Vol118 No16Petroleum Geology&Oilfield Development in DaqingDec11999 1995-2004 Tsinghua Tongfang Optical Disc Co.,Ltd.All rights reserved.P.R.China)pp15-17.ABSTRACT This paper studies the chronostrata of Creta2ceous in Songliao Basin using fission track method and K-Ar dilution method,The result is that the actual measuredage of the strata in Quantou Member and above confirms tothat inferred by biostrata and magnetic strata.The boundaryline of upper and lower Cretaceous should be delineate be2tween Qingshankou and Quantou members.The actual mea2sured age of the strata below Quantou Member deviates fromthat inferred by biostrata and magnetic strata(HuoshilingMember is considered as the oldest sedimentation of EarlyCretaceous).A new point of view about the geologic time ofvarious members in Lower Cretaceous.KEY WORDS Fission track method,K-Ar dilutionmethod,Chronostrata,Stratasuccession,Mesozoic,Songliao BasinA NON-LINEAR MODEL USING HEREDITY AL2GORITHMTOPREDICTRESERVOIRPERFOR2MANCEJiang Ming,Zhong ying(Exploration and DevelopmentResearch Institute of Huabei Petroleum Administrative Bu2reau,Hebei,062552,P.R.China)and Wang Yazhou(Development affairs Department of Huabei Petroleum Ad2ministrative Bureau)pp18-20.ABSTRACT This paper gives some representative non-lin2ear models in the prediction of reservoir performance,intro2duces the basic principle and calculation stepsof heredity al2gorithm,and discusses its application in reservoir perfor2mance prediction.This method is easy to be programmed incomputer.Some cases proves that it has a high degree of ac2curacy and practicality.KEY WORDS Heredity algorithm,Non-linear model,Reservoir performance prediction,SolutionA NEW MODEL AND ITS APPLICATION IN SEEP2AGE FLOW PROBLEMS OF NATURALGASINCOMPLICATED GAS RESERVOIRZhao Zigang(Daqing Petroleum Institute,Heilongjiang,151400,P.R.China),Yao Li(No.8 Produc2tion Company of Daqing Petroleum Administrative Bureau)pp21-24.ABSTRACT This paper established a new model for theseepage flow in complicated gas reservoir considering well2bore phase state redistribution in accordance with gas reser2voirs in various fluid areas such as edge water reservoirs,lithologic pinchout reservoirs and reservoirs with pollution orimprovement in bottom hole.It obtains reservoir pseudopres2sure distribution analytic solution under 3 kinds of typicalexternal boundary condition,and plots the bottom hole pres2sure drop curves.The given reservoir dimensionless pressureexpress formula and pressure drop curves can be used incondensate gas wells and the gas wells with accumulated flu2id in bottom hole.Case analysis gives its application in oilfield development.KEY WORDS Seepage flow in natural gas reservoirs,Vari2able well bore storage,Complicated as reservoir,Pressuredrop curveA STUDY ON THE COMPARISON AND INTERPRE2TATION SYSTEMFOR RESERVOIR BOUNDARYDELINEATIONRen Haibin,Zhao Wei and Ma Y onggang(No.6 Pro2duction Company of Daqing Petroleum Administrative Bu2reau,Heilong jiang,163712,P.R.China)pp25-28.ABSTRACTAccording to the result of lateral well vectorizeand digitizing,and based on the method and principle of“cyclic comparison and hierarchical controlling”,this paperintroduces an comparison and interpretation software pro2grammed to summarize the artificial method and experience.This software can delineate the boundaries of reservoir mem2ber,sandstone member and substrata,and it is used in ac2tual production.KEYWORDS Log,Vectorize,Computer,Reservoirboundary,Reservoir comparis