简介:<正>1IntroductionTheundergroundbrineresourcesdistributingwidelyinSichuanBasin,Chinahavedrawnworldwideattentionduetotheirunusualelementabundanceandexcellentquality.
简介:The2ndMid-EuropeanClayConference(MECC'04)washeldbetween20-24thSeptember2004,inMiskolc,Hungary.Theideatoholdcommonconferenceswasacceptedbythenationalclaygroupsoffourneighbouringcountries,Poland,Slovakia,HungaryandCroatia,duringtheEUROCLAYMeetinginCracow,Poland,in1999.Thefirstconferencewasheldin2001atStaráLesná,intheHighTatraMts.inSlovakia.
简介:SongkeWellNo.2,oneofthemainpartofthescientificdrillingprojectinSongliaoBasin,whichwasdrilled7018mandacquiredthepartofcorescontinuouslyfromtheLowCretaceoustotheCarboniferousandthePermianfromthe2843mdeep,canbeconsideredasthedeepestcontinentaldrillingprojectinAsia.Aimingatthefeaturesoflongerwellsections,largerdiametersandmultiplespud-insforcoringofSongkeWellNo.2,thisprojectbrokethroughthe"coringinsmalldiameterandreaminginlargediameter"spud-indrilling-completionprocedureswhicharealwaysusedinlarge-diameter-wellcoringforcontinentalscientificdrillingprojectsindomesticandoverseasandthedrillingmethodofshort-singlecylinderroundtripfootage.Atthesametime,"coringinthesamediameterandcompletingdrillingatonesinglediameter"wasachievedatallφ311mmandφ216mmcoringsectionsofmorethanonethousandmeterslong,high-efficientoperationwith"drillinglongfootagewithdrilltoolscombinedinmulticylinders"wasachievedatdeepcoringsection.Fourworlddrillingrecordswerecreatedwhichincludemorethanathousandmeterscontinuouscoringatφ311mm,andthefootageperroundtripfootageatφ311mm,φ216mmandφ152mmisallmorethan30m,allofthesebreakthroughsreducedatleast300daysforthisproject;moreover,consideringthecharacteristicsofformationsthatthegeothermalgradientishighinthedrilledsectionsandtheinside-welltemperatureisover240℃afterdrillingcompletion,aformate-polymerwater-basedmudsystemwasdevelopedbycompoundingattapulgiteandsodiumbentoniteandbyaddingindependentlydevelopedhigh-temperaturestabilizer,whichcanprovidecriticaltechnicalsupportforsuccessfulwellcompletionat7018minthesuper-high-temperatureenvironmentItisthefirsttimethatthewater-basedmudisoperatedattheworkingtemperaturehigherthan240℃inChina;Besides,consideringthehigh-qualityrequirementoncoresimposedbytheproject,themethod"mechanicalcor
简介:Naturalgascontaininghydrogensulphide(H2S)hasbeenfoundinseveralpetroliferousbasinsinChina,suchastheSichuanBasin,BohaiBayBasin,OrdosBasin,TarimBasin,etc.NaturalgaswithhigherH2Scontents(H2S>5%mol.)ismostlydistributedinboththegasreservoirsofDukouhe,Luojiazhai,PuguangandTieshanpo,whichbelongtotheTriassicFeixianguanFormationinthenortheasternSichuanBasinandthoseoftheKongdian-ShahejieformationsinthenortheasternJinxianSagoftheJizhongDepression,BohaiBayBasin.IntheSichuanBasin,theH2Scontentsofnaturalgasaverageover9%andsomecanbe17%,whilethoseoftheBohaiBayBasinrangefrom40%to92%,beingthenoneofthegasreservoirswiththehighestH2Scontentsintheworld.Basedondetailedobservationandsampleanalysisresultsofatotal5000mofcorefromover70wellsintheabove-mentionedtwobasins,especiallysulfurisotopicanalysisofgypsum,brimstone,pyriteandnaturalgas,alsowithintegratedstudyofthegeochemicalcharacteristicsofhydrocarbons,itisthoughtthatthenaturalgaswithhighH2Scontentsresultedfromthermochemicalsulfatereduction(TSR)reactions.Amongthem,thenaturalgasintheFeixianguanFormationresultedfromTSRreactionsparticipatedbyhydrocarbongas,whilethatintheZhaolanzhuangoftheJinxianSagbeingtheproductofTSRparticipatedbycrudeoil.DuringtheconsumptionprocessofhydrocarbonsduetoTSR,theheavyhydrocarbonswereapttoreactwithsulfate,whichaccordinglyresultedinthedrycoefficientofnaturalgasincreasingandthecarbonisotopesbecomingheavier.
简介:塔河油田2区三叠系油藏是西北分公司开发较早的碎屑岩油藏之一,开发层系有上油组、中油组,油柱高度在15~20m,储层为辫状三角洲相辫状三角洲前缘亚相水下分流河道、河口坝、分流间湾微相沉积,非均质性严重。本区上油组砂体厚度40~0m,中油组25~35m,分布较稳定,物性为中孔、中高渗储层,原油属低粘度轻质油。但2区三叠系油藏实钻变化大,见水快、产量递减快、含水上升快、采出程度低,开发效果较差,经过多次调整虽有一定程度改善,仍存在一些问题。本文认为2区三叠系油藏开发效果较差的原因之一是对本区油藏类型的认识上存在问题即2区三叠系油藏是以断裂控制的断块油藏而非背斜油藏,并延伸分析正在投入开发评价的S96-T901井区、TK232-T453井区及T206-T208井区等都为断块(断背斜)油藏。应用断块油藏的观点对塔河地区三叠系油藏勘探开发有重要指导意义。
简介:我国高分系列卫星数据因具有重访周期短、价格低廉、精度较高的特点,在矿山开发监测工作中得到了广泛的应用。本文在深入了解高分二号卫星数据特征的基础上,以甘肃永登县为例,利用机器学习模型中支持向量机算法(SupportVectorMachine,SVM)自动提取矿山开发信息,在处理的遥感影像上进行样本采集,借Matlab平台对样本及影像数据进行归一化、降维处理(PCA)。利用SVM模型进行信息自动提取过程中,选取径向基核函数(RBF),运用量子粒子群算法进行参数寻优,最终对提取结果进行野外调查。查证结果表明利用SVM模型进行矿山开发信息自动提取是可行的。该研究为国产数据在矿山监测应用中提供了新的思路。
简介:CO2富有的冷弹簧在Wudalianchi发生在活跃火山附近(),东北中国。弹簧富于CO2,与HCO3吗?作为占优势的阴离子并且提高了全部的溶解固体(TDS)的内容(>1000mg/L),Fe2+(>20mg/L),Sr(>1mg/L),并且溶解Si(>20mg/L)。弹簧的逃离并且溶解的气体的作文是类似的。在在Wudalianchi的矿泉的逃离的气体和溶解气体的13C价值变化从?8.77到?4.53并且?8.24到?5.26当18O价值变化从时?10.68到?7.65并且?10.30到?8.84,分别地在弹簧显示逃离的气体和溶解气体的CO2的一样的上面的披风起源。碳和氧同位素分别和water-CO2交换在地下水流动的过程是弱的。4He内容超过5000
简介:通过对武汉中地数码公司推出的新一代MAPGIS7-IMSSOA平台功能进行了充分研究基础上进行了二次开发。详细介绍了该平台二次开发应用到的主要技术方法,包括WebService、Ajax技术、HTML语言、CSS样表、JAVAScript脚本语言、DOM模型、VML语言、XML语言、JSP技术和数据库技术等,并且应用这些技术方法在MAPGIS7-IMSSOA平台的基础上二次开发出了青藏高原1:25万区域地质空间数据库管理系统,给出了该系统开发的示例。
简介:RamanpeaksofvarioushydratesintheH2O-NaCl-CaCl2systemhavebeenpreviouslyidentified,butaquantitativerelationshipbetweentheRamanpeaksandXNaCl(i.e.,NaCl/(NaCl+CaCl2))hasnotbeenestablished,mainlyduetothedifficultytofreezethesolutions.Thisproblemwassolvedbyaddingaluminapowdertothesolutionstofacilitatenucleationofcrystals.Cryogenic(-185oC)Ramanspectroscopicstudiesofalumina-spicedsolutionsindicatethatXNaClislinearlycorrelatedwiththetotalpeakareafractionofhydrohalite.Capsulesofsolutionsmadefromsilicacapillarywerepreparedtosimulatefluidinclusions.Mostoftheseartificialfluidinclusionscouldnotbetotallyfrozenevenattemperaturesaslowas-185oC,andthetotalpeakareafractionofhydrohaliteisnotcorrelatedlinearlywithXNaCl.However,thedegreeofdeviation(?XNaCl)fromthelinearcorrelationestablishedearlierisrelatedtotheamountofresidualsolution,whichisreflectedbytheratio(r)ofthebaseline"bump"area,resultingfromtheinterstitialunfrozenbrinenear3435cm-1,andthetotalhydratepeakareabetween3350and3600cm-1.Alinearcorrelationbetween?XNaClandrisestablishedtoestimateXNaClfromcryogenicRamanspectroscopicanalysisforfluidinclusions.