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时间:2019-05-22
《油气井防砂综合决策技术及软件系统开发》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第32卷第1期石油钻采工艺V0l_32No.12010年1月0ILDRILLING&PR0DUCT10NTECHN0L0GYJan.2010文章编号:1000~7393(2010)01—0074—08油气井防砂综合决策技术及软件系统开发董长银武龙王爱萍张琪(中国石油大学石油工程学院,山东东营257061)摘要:根据油气井防砂综合决策的基本理念,从定性经验出砂预测、出砂临界生产压差预测、实际出砂半径及出砂量预测等4个层面系统地研究了出砂预测技术。提出了一套基于综合模糊评判与B—P神经网络的防砂工艺方案决策的过程与方法,给出了以防砂筛管防砂精度设计及砾石尺寸优选为核心的防砂工艺参数优化设计理
2、论与方法,建立了一套可用于各种防砂工艺的产能评价及预测模型。基于防砂措施对油气井生产动态的影响体现在挡砂效果、增产效果和改善井底流动条件效果3个方面,提出了一套防砂效果综合评价技术体系及相关的评价标准。在此基础上,开发了油气井防砂综合决策系统平台一Sandcontrol0街ce,介绍了其基本模块与功能及应用情况。关键词:油气井防砂;出砂预测;防砂工艺设计;产能预测;方案优选;效果评价;综合决策;软件系统中图分类号:TE358.1文献标识码:AComprehensivedecisiontechnologyforsandcontrolinoil&gaswellsandcOrrespOndin
3、gsoftwaresystemDONGChangyin,WULong,WANGAiping,ZHANGQi(Collegeoj’PetroleumEngineering,ChinaUniversityofPetroleum,Dongying257061,China)Abstract:Inthiswork,theconceptandcorecontentsofcomprehensivedecisionforsandcontrolareputforwardfirstly.Systemicsandingpredictioninvolvesempiricalsandingprobabilityp
4、rediction,criticalsandingpressuredrawdownprediction,sandingradiuspre—dictionandsandcutpredictioninrealproductionconditions,thebasictheoryandtechniqueofwhicharedevelopedbriefly.AnintegratedsandcontrolmethoddecisionmodelandprocedureareworkedoutbasedonfuzzymathematicsandB—Pneuralnetworktheory.Thesan
5、dcontroldesignoptimizationmodelandmethodsforalltechnologiesaresummarizedinthispaper,thecorecontentsconcernsscreenslotwidth,gravelsizeandpumpprocedureoptimization.Basedontheinflowperformancerelationshipandtheanalysisofadditionalresistancezonesformedbysandcontrolmeasure,asystemicandeffectivesandcon
6、trolwellproductivitypredictionmodelissetuptocalculatethesandcontrolproductivityratio.Consideringthewellperformancesbeforeandafterthesandcontrol,aseriesofnewsandcontroleffectevaluationmethodsareputforwardfromthethreeaspectsofformationsandrestriction,wellstimulationsandtheimprove—mentofflowingcondi
7、tionsaroundthewellbore.Accordingtotheabovework,anintegratedsoftwareaboutsandcontroldecision,thatisSandcontrolOfice,isdeveloped,anditsmainmodule,functionandapplicationareintroducedbriefly.Keywords:sandcontrolinoilandgas
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