Ladder Horizontal Well Trajectory Control and Completion Technique in Ultra-Thin Reservoir

Wang Shubin


Daqing peripheral oilfield in the shallow layer is low abundance and low permeability thin interbed reservoir, which has the characteristics of multiple layers, low permeability, and small interlayer thickness. The reservoir development is not balanced. According to this characteristic, in order to be effective and economically develop this kind of reservoir, the research adopts stepped horizontal well development technology. And with the application of dynamics and kinematics theory, establishing a three-dimensional track ladder design of horizontal wells, horizontal section of casing string lifting limit and the mathematics model to calculate stress. The establishment of the analysis of drilling technology can accurately judge the position of bit and reservoir development, and timely adjust track.
Key words: Thin layer; Stepped horizontal well; Optimization design; Trajectory control of; Cementing quality


Thin layer; Stepped horizontal well; Optimization design; Trajectory control of; Cementing quality

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