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Home > Service center > Directional drilling technology

Directional drilling technology

        Optimize bottomhole assembly and drilling parameters using professional software and use MWD for monitoring while drilling to overcome the issues of large frictional resistance, high torque and proneness to backing pressure during the drilling of ultra-long horizontal section and achieve the directional drilling of horizontal sections within 3000m.,

High-temperature high-pressure ultra-deep horizontal well technology

        Use wireless inclinometer while drilling for monitoring and tools such as downhole high temperature resistant power motor to achieve the directional drilling of horizontal sections at  170℃ bottomhole circulating temperature and 150MPa bottomhole pressure.

Short-radius horizontal well technology

        Achieve 60~70m radius of curvature or 26-30°/30m build-up rate and effectively solve the operational difficulties of slim hole window opening, sidetracking and directional drilling through software computation and optimization of MWD and screw drill tool assembly.     

Double-step horizontal well technology

        Control the inclination and azimuth  to hit the target point relying on wireless inclinometer while drilling and geologic bottom real-time sampling data, complete the drilling of two horizontal oil reservoirs through one continuous operation and achieve the directional drilling of double-step horizontal section with a maximum vertical drop of 8.5 meters. 

U-shaped well opposing connection technology

        Use MWD in conjunction with magnetic locator, track and optimize the deviation of drilled wellbore trajectory and timely adjust the design of trajectory of wellbore to be drilled using directional drilling software and achieve the communication between vertical section and horizontal section.

 

SAGD technology

        Use MWD in conjunction with magnetic locator, optimize and calculate the deviation of drilled wellbore trajectory and timely adjust the design of trajectory of wellbore to be drilled using directional drilling software, accurately control the relative spatial parallelism between two horizontal wells and improve the production and recovery rate of heavy oil and ultra-heavy oil.

Geologic steering technology for horizontal wells with ultra-thin oil reservoir

        Select geologic and rotary steering tools based on geologic requirements, strictly control the trajectory using directional drilling software to be  within the designed ultra-thin oil reservoir (generally less than 0.8 m) and improve the drilling-encounter ratio.