页岩气水平井地质导向标志层确定方法及应用Shale gas horizontal well geosteering mark layer calculation method and Application 李增科,冯爱国,任 元

为了实现长水平段页岩气井有效穿越优质“甜点”段,基于工区内首口页岩气参数井录井、测井及岩心资料分析,找出了目的层段内的“甜点”段、优质“甜点”段及最优“甜点”段,给出了“甜点”段、“甜点”段上方的标志层及进入标志层的随钻录井和自然伽马曲线变化特征,形成了标志层确定方法.应用试验16口井,成功率100％,优质“甜点”段钻遇率98.5％,应用效果良好.

Shale gas horizontal well geosteering mark layer calculation method and Application

In order to realize the long horizontal effectively through quality "dessert" section in shale gas well, based on analyzing data of logging ,mud longing and core in the first export of shale gas parameter well, finding out the "dessert" section in target layer, high-quality "dessert" section and the optimal "dessert" section and giving the "dessert" section, marker layer upside on and the curve variation characteristics while the bit enter the mark layer logging. Finally forming a mark layer determination method. At present , 16 wells has been tested, the success rate is 100%. The high-quality "dessert" section drilling rate is 98.5%, the application effect is excellent.