compass测量系统培训教程

计算机辅助设计和测斜分析系统COMPASSComputerizedPlanning&AnalysisSurveySystem简介COMPASS是一套用于定向井设计和监控的软件包。随着它的升级，现在它的功能已经相当完备，包括钻前的轨迹设计、水力参数估算、钻具分析到现场的轨迹监控、跟踪设计及完井报告等，是一套定向井方面的优秀软件。功能模块定向井数据库定向井设计定向井测量防碰扫描完井报告相关功能图例定向井数据库建立及管理五级数据结构CompanyFieldSiteWellWellpathCompanySetupCompanySetupSurveyErrorModel(测量误差模型)SystematicEllipse(系统椭圆误差

)ConeofError(锥形误差

)ISCWSA(TheIndustrySteeringCommitteeforWellboreSurveyAccuracy)(矢量误差

)CompanySetupSurveyErrorModel(测量误差模型)SystematicEllipse(系统椭圆误差

)工业标准，1981年，SPE9223系统的内因和外因引起发生在同一个矢量方向上不考虑随机误差测斜阅读误差较小或者可以取消某些系数和加权数不适合MWD和速率陀螺六种误差系数CompanySetupSurveyErrorModel(测量误差模型)SystematicEllipse(系统椭圆误差

)六种误差系数MisalignmentError(偏心误差)RelativeDepthError(相关深度误差)TrueInclinationError(基本井斜误差)CompassReferenceError(参考罗盘误差)GyroscopeAzimuthError(陀螺参考方位误差

)MagneticAzimuthError(磁方位误差)CompanySetupSurveyErrorModel(测量误差模型)ConeofError(锥形误差

)基于现场数据和实验数据的比较经验化计算公式：前一个球体半径+测量间距x

工具误差系数/1000以(井眼误差＋井眼半径)开始CompanySetupSurveyErrorModel(测量误差模型)ISCWSA(矢量误差

)主要针对固态磁性仪器，例如MWD，ESS涉及系统误差SPE56702CompanySetupSurveyErrorModel(测量误差模型)InputErrors(输入误差)&OutputErrors(输出误差)1.00sigma:65%2.00sigma:95%CompanySetupCalculationDefaults(默认计算方法)SurveyCalculation(测量计算)AverageAngle(平均角法)BalanceTangential(平衡正切法)MinimumCurvature(最小曲率法)RadiusofCurvature(曲率半径法)CompanySetupCalculationDefaultsVerticalSectionSlotSiteVerticalSectionSiteSlotCompanySetupCalculationDefaultsWalk/TurnMD变化率=狗腿基本长度x测量变化/深度变化HDL变化率=狗腿基本长度x测量变化xsin((L1+L2)/2)/深度变化L1是开始井斜，L2是结束井斜CompanySetupAnticollisionSettings(防碰设置)ScanMethod(包括四种扫描方法)(3D)ClosestApproach(三维逼近法)TravelingCylinder(法平面法)Horizontalplane(水平面法)TravelingCylinderNorth(HighSide+Azimuth)CompanySetupAnticollisionSettings(防碰设置)ScanMethod(3D)ClosestApproach(三维逼近法)CompanySetupAnticollisionSettings(防碰设置)ScanMethodTravelingCylinder(法平面法)CompanySetupAnticollisionSettings(防碰设置)ScanMethodHorizontalplane(水平面法)CompanySetupAnticollisionSettings(防碰设置)ScanMethodTravelingCylinderNorth(HighSide+Azimuth)HighSide+AzimuthErrorSurfaceCompanySetupAnticollisionSettings(防碰设置)ErrorSurface(误差面)EllipticalConicCircularConicRectangularConicIncludeCasingsCompanySetupAnticollisionSettingsWarningLevelsorRulesErrorRatio(误差比)DepthRatio(深度比)RiskBased(风险底线)CompanySetupAnticollisionSettingsWarningLevelsorRulesErrorRatioRatiofactor=(CentertoCenterdistance)/(R1+R2)如为1.00，指两井误差圆正好相碰.CompanySetupAnticollisionSettingsWarningLevelsorRulesDepthRatioDepthRatio=误差半径/井深MaxRadius最大半径CompanySetupAnticollisionSettingsWarningLevelsorRulesRiskBased估计相碰的概率如为0.01，指100口井里有1口井相碰的概率FieldSetupFieldSetupGeographicReferenceSystemGeodeticSystem大地测量系统Geodeticdatum大地基准MapZoneFieldSetupGeographicReferenceSystemGeodeticSystem坐标系，投影模型常用系统FlatEarthUTM(UniversalTransverseMercator)墨卡托通用横轴投影系统North(X),East(Y)LambertProjectionGPS(GlobalPositioningSystem)CGP(ChinaGaussProjection)中国高斯投影USStateplaneCo-ordinateSystem1983美国国家坐标系统1983FieldSetupGeographicReferenceSystemGeodeticDatum大地基准定义投影的中心和半径常用系统WGS84(WorldGeodeticSystem1984)1984年世界大地测量系统Krasovsky19401940年克拉索夫斯基FieldSetupGeographicReferenceSystemGeodeticSystemUTM世界划分为60个区，每经度6º为一区以赤道为0点，南北各84º最大特点是经线表象为平行直线适用于近赤道低，沿纬线延伸地区FieldSetupGeographicReferenceSystemGeodeticSystemUTMFieldSetupFieldSetupGeographicReferenceSystemGeodeticSystem高斯投影FieldSetupGeographicReferenceSystemGeodeticDatum大地基准WGS84协议地球坐标系FieldSetupGeomagneticModelIGRFInternationalGeomagneticReferenceField校正期：每5年WMMWorldMagneticModel校正期：每5年DGRFDefinitiveGeomagneticReferenceField校正期：每5年BGGMBritishGeologicSurveyGeomagneticModel校正期：每年FieldSetupLocalCoordinateSystemWellCentreSiteCentreFieldCentreUseGeodeticScaleFactor4m/10000mWellCentreSiteCentreFieldCentreVerticalDatumReferenceWellpathDatumSystemDatumWellReferencePoint相对比较固定的位置井口泥线VerticalDatumReferenceFieldSetupGeographicReferenceSystemGeodeticDatum大地基准WGS84基本参数长半轴a=6,378,137±2m

地球引力常数GM=3,986,005X108m3s-2±0.6X108m3s-2

正常化二阶带球谐系数C2.0

=-484.16685X10-6±1.3X10-9地球角速度ω=7,292,115X10-11rads-1±0.150010-11rads-1

参考椭球体对比Name平均曲率半径扁率采用国家GRS19806,378,1376,356,752.31/298.257UTMWGS19726,378,1356,356,750.51/298.26NASAAustralian19656,378,1606,356,774.71/298.25AustraliaKrasovsky19406,378,2456,356,863.01/298.25USSRInternatl19246,378,3886,356,911.91/297保留HAYford19096,378,3886,356,911.91/297保留Clarkel18806,378,249.16,356,514.91/293.46Africa,FranceClarkel18666,378,206.46,356,583.81/294.98USA,PhilippinesAiry18496,377,563.46,356,256.91/299.32BritainBessel18416,377,397.26,356,079.01/299.13Europe,Chile,IndonesiaEverset18306,377,276.36,356,075.41/300.80India,Burma,Pakistan,Afghan,Thailand;etc.SiteSetupSiteSetupCentreLocationNoneLocalCoordinate无防碰功能MapNorthing&Easting网格坐标GeographicLatitude&LongitudeGPSLeaseLineLeaseLine SiteSetupElevationReferenceOffshoreWaterDepthOnshoreGroundLevelElevationSiteSetupAzimuthReferenceTrueNorth指向北极点的方向GridNorth投影网格图的正北方向MagneticNorth磁北极SiteSetupAzimuthReference磁偏角MagneticDeclination真北(TrueNorth)和磁北(MagneticNorth)的夹角收敛角GridConvergence真北(TrueNorth)和网格北(DipNorth)的夹角磁倾角DipAngle磁力线与地表的夹角NorthReferenceGNvs.TNAzimuthReferenceWellSetupWellSetupPositionUncertainty推荐用基板时设为0与SiteUncertainty区别WellpathSetupWellpathSetupVerticalSection多靶点闭合位移练习建立一口井的数据库资料来源客户提供公司CreateTemplateCreateTemplateLayoutRectangleCircleSingleSlotRectangularTemplateNumberingRowColumnRectangularTemplatePatternPositionPositionoftopleftslotrelativetotemplatecentrePattenSpacingX-SpacingY-SpacingPatternRotationRectangularTemplateCircleTemplate练习TargetName&LocationTargetGeometry几何形状DrillingTargetConfidenceLevel击中靶区的概率ConfidenceLevel练习PlanPlanPlan2DSlantSWell3DBuild/TurnDogleg/ToolfaceOtherModeHoldOptimumAlignLandingCalculatorSlantWellMeasureddepthofKOP造斜点深度Buildrate造斜率Maximuma