ManagedPressureDrilling(MPD)TechnologyOverview控压钻井技术PresentationOutlineImportanceofHSEGlobalWellOperatorIssuesAdvantagesofMPD控压钻井技术应用效应“Adaptivedrillingprocessusedtopreciselycontroltheannularpressureprofilethroughoutthewellbore.Theobjectivesaretoascertainthedownholepressureenvironmentlimitsandtomanagetheannularhydraulicpressureprofileaccordingly”.(IADC)ManagedPressureDrillingOperationsGeneralComparisonofdrillingmethods钻井方法对比PassiveMPD(hydrostaticmudweightalwaysaboveporepressure)被动控压钻井（泥浆静液柱压力总是高于地层压力）MPDusedasasafetysystem控压钻井作为一种安全体系RotatingControlDevice(RCD)旋转控制设备ManualChoke(RigChokeforUSlandwells)手动节流设备（用于美国陆上井的节流设备）ActiveMPD(hydrostaticmudweightslightlyaboveorsometimesbelowporepressure)主动控压（泥浆静液柱稍高于或有时低于地层压力）MPDbeingusedto‘walktheline’使用MPD“压线走”E.g.narrowporepressuretofracpressurewindow如地层压力和破裂压力之间的窗口很窄RCDwithchangeoutsystemlikeadditionalBOPs增加旋转控制设备Manualchokewithcontinuouscontrolorautomatedchokesystem手动节流，连续控制或自动节流系统BackpressurepumpsystemforconstantBHP回压补偿泵，保持井底压力不变Mud-capdrilling(withunderoroverbalancedfluid)泥浆帽钻井（欠或过平衡）Usuallyuseforfracturedlimestonesorgranites通常用于裂缝性灰岩或花岗岩Drillingwithlostreturns失返钻进Mayhavepartiallevelinannulus环空有部分液面RCDHydraulicsModelling–CirculatingatTD水力参数模拟–套管鞋处循环模拟MPDEquipment–MajorComponents旋转控制头TheRCD5000™WhatareRCD’sWhenShouldanRCDbeUsed?Level4AutochokeSkid自动节流管汇AutochokeControlDisplayBackPressurePump回压泵PWD®MPDKickDetectionandControlMPDLossDetectionandControlOnsiteMPDTeam&CommunicationsOperationalProcedures操作程序ContingencyProcedures应急程序GeoBalance:OptimizedCaseHistoryNorthAmericaGeoBalance:Sigma®ServiceCaseHistoryMexico