Abstract: The present invention provides a methodology and system for resistivity tool design. By using at least one E field antenna instead of magnetic antennas, stronger signals can be captured by a smaller system. The more effective antenna design of the present invention has broad applications in various tools including geosteering, look ahead, and triaxial induction.

Abstract: The present invention provides a drilling auxiliary system, which establishes one or more links among multiple wells or among different branches of the same well. When the present invention is applied to the EM data transmission, it can significantly reduce unwanted electric energy consumption in the formation, thus effectively improve data transmission efficiency. When the present invention is applied to the casing detection, it can achieve a large detection range and greatly simplify the complexity of the operation, thereby saving costs.

Abstract: The present invention provides a methodology and system for resistivity tool design. By using at least one E field antenna instead of magnetic antennas, stronger signals can be captured by a smaller system. The more effective antenna design of the present invention has broad applications in various tools including geosteering, look ahead, and triaxial induction.

Abstract: The present invention provides a drilling auxiliary system, which is used for down hole EM data transmission and/or casing detection, wherein said drilling auxiliary system comprises an insulating device which is mounted on the drill pipe of a well and used for preventing entire electric current loss or suppressing partial electric current loss. When used for EM data transmission, the present invention can greatly reduce the unnecessary power consumption, thereby improving the efficiency of EM data transmission. When used for casing detection, the present invention can effectively increase the casing detection range.

Abstract: The present invention provides a drilling auxiliary system, which establishes one or more links among multiple wells or among different branches of the same well. When the present invention is applied to the EM data transmission, it can significantly reduce unwanted electric energy consumption in the formation, thus effectively improve data transmission efficiency. When the present invention is applied to the casing detection, it can achieve a large detection range and greatly simplify the complexity of the operation, thereby saving costs.

Abstract: Novel tools and techniques are described for invoking and subsequently hiding or minimizing an operation window within a portion of a display area of a touchscreen display of a mobile device. The operation window may be invoked and hidden/minimized using default, preset, or customizable user inputs. The operation window, whose position, size, and content display options may be customizable by a user, allows a user to easily and comfortably interact with, operate, and/or navigate, using only one hand, software applications (e.g., user interfaces) running on a mobile device and displayed on the touchscreen display of the mobile device. This particular functionality is especially applicable to mobile devices having relatively large touchscreen displays that require two hands to comfortably operate while holding the mobile device.