渤海S油田水平井开发指标预测方法研究邓景夫，吴晓慧，朱志强，张烈，高岳（中海石油（中国）有限公司天津分公司，天津300459）摘要：水平井是渤海S油田开发后期的主力井型，但随着油田进入高含水开发阶段，井控储量逐渐降低，增加了对剩余油深入精准挖潜，对油井稳产策略精细制定，对后期油井开发指标精准预测的要求。国内外专家关于油田水平井关键指标研究的成果丰富，但大多没有具体到特定油田。对S油田水平井的含水上升模式进行研究，归纳总结出一套油田自适应的高含水期水平井关键指标预测技术体系。在近两年新投的4口水平井对新方法进行了可靠性验证，结果表明计算的相对误差在8%以内，说明依据S油田不同含水上升模式拟合的产量、含水及递减公式在油田内普遍适用，具有广阔的应用前景。关键词：开发指标预测；水平井；含水上升规律；初期产能；初期含水；产量递减中图分类号：TE355.6文献标志码：AStudyonthepredictionmethodofhorizontalwelldevelopmentindexintheSOilfieldofBohaiSeaDENGJingfu，WUXiaohui，ZHUZhiqiang，ZHANGLie，GAOYue（CNOOC（China）TianjinBranch，Tianjin300459，China）AbstractAbstract：HorizontalwellsarethemainwelltypeinthelaterdevelopmentstageoftheSOilfieldintheBohaiSea.However,astheoilfieldhasenteredthestageofhighwatercutdevelopment,thewellcontrolreservesgraduallydecrease,increasingtherequirementsfordeepandprecisetappingofremainingoil,fineformulationofwellstabilizationstrategy,andprecisepredictionoflatewelldevelopmentindexes.Thereareabundantachievementsofdomesticandforeignexpertsontheresearchofkeyindicatorsofhorizontalwellsintheoilfield,butmostofthemarenotspecifictoaoilfield.ItwasstudiedthewatercutrisepatternofhorizontalwellsinSOilfield,andsummarizedasetofoilfieldadaptivetechnicalsystemsforpredictingkeyindexesofhorizontalwellsinahighwatercutperiod.Thereliabilityofthenewmethodwasverifiedinfournewlyinvestedhorizontalwellsinthepasttwoyears,andtheresultsshowedthattherelativeerrorofthecalculationwaswithin8%,indicatingthattheproductionandwatercutformulasfittedaccordingtothedifferentwatercutrisingmodesoftheSOilfieldaregenerallyapplicableintheoilfieldandhavebroadapplicationprospects.KeywordsKeywords：developmentindex...
