Application and Development Trend of Offshore Mechanical Water-Controlled Completion Technology
Offshore oilfields are typically developed using horizontal wells.One of the main challenges faced by each oil field is effectively controlling the rate of water content rise.Mechanical water control completion technologies used in offshore oilfields include central water contro,variable density screen water control,ICD/AICD stage water control,filling flow control water control,C-AICD water control,and water search and control integration.The text describes the technical principles,advantages,and disadvantages,as well as the application scope of each method.Two main mechanical control technologies used in offshore oil fields are filling flow control and ICD subsection water control.The first method utilizes light film-coated particles as axial sealing materials and is appropriate for water control in oil wells with strong formation heterogeneity and long horizontal sections.This method is widely used in oil fields located in the Bohai Sea and eastern South China Sea.On the other hand,ICD subsection water control technology necessitates precise design of packer setting position,making it suitable for oil well water control with clear formation conditions and low heterogeneity.The mechanical water-controlled completion technology is primarily utilized in the eastern oilfield of the SouthChina Sea.The current technical situation and development trends of this technology are highlighted in this article.The results can be a reference for the selection of water control completion methods and the development of subsequent technologies in offshore oil fields.
water-controlled completionCentral tubeICDAICDFilling water controlControl water and stabilize oil
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