Research And Application Of Horizontal Well Logging Technology In Raoyang Sag Area

In order to achieve the purpose of continuously improving oil and gas production,horizontal well production technology has been widely used in major oil and gas fields.The research on the construction technology and interpretation method of horizontal well production logging is helpful to improve the oil and gas production capacity of production wells and prolong the production life of oil and gas wells in major oilfields.The development of new production logging technology for horizontal wells is of great significance for reservoir monitoring and solving the problem of horizontal well treatment.Based on the research of horizontal well logging technology,combined with the characteristics of large curvature radius and short horizontal interval of horizontal wells in Raoyang sag of Huabei Oilfield,this paper studies the specific logging method for horizontal wells in this area(1)Combined with the characteristics of horizontal well structure and production logging tools in this area,the transportation technology of cable + tappet is developed.(2)Based on the domestic advanced high-precision flow holding moisture meter,the metal umbrella component and umbrella sleeve protection device are added,the flexible short connection between the instrument and tappet and the centralizer are added,and the corresponding matching tools are optimized.(3)According to the experimental results,the interpretation template of horizontal well production profile logging is compiled,and a complete set of logging technology and data interpretation model suitable for formation development in North China is formed.Finally,the developed logging technology can meet the basic needs of dynamic monitoring of horizontal wells in the regional geological conditions,and solve the technical problems of liquid production profile logging of horizontal wells.The field application has completed the liquid production profile logging and boron neutron logging of three wells,obtained the first-hand data of dynamic monitoring of horizontal wells in this area,and deepened the geological understanding The combination of liquid production profile logging and boron neutron logging data provides a strong support for the in-depth and comprehensive understanding of liquid production and remaining oil distribution in horizontal intervals.