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2015年7月20日,冀东油田南堡118X23井取心成功,这口井钻井取心井深3 500 m,井斜63.5°,位移2 100 m,共取心3筒次,取心进尺17.1 m,心长16.82 m,平均收获率高达98.36%,大斜度井钻井取心工作再获突破。南堡118X23井是位于冀东油田南堡118平台的一口评价井,设计最大井斜63.5°。由于本井井斜大、取心层位深、钻具不易居中、井眼清洁困难,容易造成堵心、收获率低,影响地质资料的采集,给钻井取心工作带来严峻挑战。为满足本
On July 20, 2015, the wellbore of Well Xiuxian 118X23 in Jidong Oilfield was successfully drilled. The well was drilled with a well depth of 3,500 m and its inclination was 63.5 ° with a displacement of 2 100 m, taking a total of 3 cylinders and taking 17.1 m, heart length of 16.82 m, the average yield as high as 98.36%, drilling high-angle well drilling again won the breakthrough. Well Nanxiong 118X23 is a well appraisal well located at the platform of South Fort 118 in Jidong Oilfield. The maximum well deviation is 63.5 °. Due to the large deviation of the well, the coring layer is deep, the drilling tools are not easy to be centered, the wellbore cleaning is difficult, the plugging heart is easily caused, the harvesting rate is low, and the collection of geological data is affected, which poses a severe challenge to the drilling coring work. To meet this