Research On The Design And Control Techniques For Slim Hole Horizontal Drilling In Yanchang

As an efficient well type for shale gas exploration and exploitation,horizontal well has obvious advantages except high cost.While slim hole drilling can provide both high efficiency and low cost which also means 15%-20% cost savings.Therefore,on the premise of well production,slim hole drilling will be a very cost efficient solution to shale gas production.This paper focuses on the question of drilling shale gas with horizontal well in Yanchang oilfield,studying the key technique in slim hole horizontal well drilling including well trajectory design,well structure design and ROP prediction.Finally,based on theoretical analysis and calculation,proposing a scheme transforming conventional horizontal well into slim hole horizontal well.Starting their own businesses and making innovations are the general background of China,meanwhile,the rapid expansion of internet provides infinite possibilities for the transformation of traditional industry.This paper makes a detailed introduction concerning the development and application of the first drilling design App,and also the preliminary discus about internet plus drilling.