Abstract:

For the exploration of deep earth resources in China, the authors developed a high-power borehole induced polarization system ( referred to as borehole IP system) for mineral resources exploration within 3 000 m. Compared with  ground induced polarization method,  borehole IP system conducts exploration through drilling and its transceiver is closer to the target body, which has more advantages in the exploration of deep concealed minerals and oil and gas resources. The acquisition control and data processing of  borehole IP system is the center of the whole system. In the work, it is necessary to solve the technical problems such as data acquisition, long-distance remote communication, high-speed data transmission, and transceiver synchronization under the condition of high temperature and high pressure. Based on the high expansibility of the logging ACME (acquisition control management expert), the authors developed a set of acquisition control and processing software matched with  borehole IP system. The acquisition control software of borehole IP system is connected to  ACME  through a dynamic library to realize the functions of data acquisition, real-time data transmission, display, monitoring, storage, processing and mapping, and has been successfully applied to the borehole detection experiment of copper iron metal mine in Daye City. The data processing results are highly consistent with the known data and meet expectations.

Key words: borehole induced polarization, acquisition control management expert, receiver transmission control, data processing