УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ НАЛИЧИЯ ГАЗА В СКВАЖИНЕ ВО ВРЕМЯ БУРЕНИЯ,申请号RU20050102084-传众专利搜索

УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ НАЛИЧИЯ ГАЗА В СКВАЖИНЕ ВО ВРЕМЯ БУРЕНИЯ

申请公布号：RU2005102084(A)

申请号：RU20050102084

申请日期：2003.06.17

申请公布日期：2005.10.27

申请人：

ШЕЛЛ ИНТЕРНЭШНЛ РИСЕРЧ МААТСХАППИЙ Б.В. (NL)

发明人：КУНЕН Йосеф Гийом Кристоффель (NL)

分类号：E21B49/00;G01N25/18;G01N33/28

主分类号：E21B49/00

摘要：A system is provided for detecting the presence of formation gas in a stream of drilling fluid flowing through a wellbore during drilling of the wellbore. The system has at least one sensor chamber connectable to a drill string for drilling the wellbore, each sensor chamber containing a volume of a selected gas and having a membrane wall which allows passage of formation gas from the stream of drilling fluid into the sensor chamber. The sensor is arranged to detect a change of a selected characteristic of the volume of gas due to passage of formation gas from the stream of drilling fluid via the membrane wall into the sensor chamber.