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在常规的钻井技术之外,都统称为复杂结构井。其应用主要是为了适应油田的采收率。但是在结构复杂的地质条件下,地质结构的不确定、设备操控不确定性、结构不确定性、意外情况等,使得复杂结构井与特殊工艺井完井工艺越发复杂与困难。所以在实际的施工中利用多种技术组合和创新才能提高完井的质量,并提高其对提高采收率的帮助。
Outside of conventional drilling techniques, these are collectively referred to as complex structural wells. Its application is mainly to adapt to oil recovery. However, under the complex geological conditions, the uncertainty of geological structure, equipment control uncertainty, structural uncertainty and accidental conditions make the completion process of complicated structure wells and special process wells more complicated and difficult. Therefore, using a variety of technology combinations and innovations in actual construction can improve well completion quality and enhance its help in enhancing oil recovery.