Design and application of waste drilling fluid treatment device for green exploration on the Qinghai Plateau

Abstract:

Aiming at the prominent problems encountered in borehole construction for geological exploration on the Qinghai Plateau， including large volumes of waste and residual drilling fluid， high treatment costs， fragile plateau ecological environment and stringent environmental protection requirements， as well as the poor adaptability of existing treatment technologies and equipment to field operation demands， this paper carries out research and development of a green exploration drilling fluid treatment device suitable for the Qinghai Plateau environment. Conventional physical and chemical treatment technologies for waste drilling fluid are sorted out， the practical requirements for waste drilling fluid treatment in plateau exploration construction through field investigations are identified， the structural design， feasibility study and manufacturing of the treatment device are completed， field application tests are conducted and various environmental indicators of treated products are tested and analyzed. The test results show that the self-developed waste drilling fluid treatment device can effectively realize the reduction and harmless treatment of waste drilling fluid generated from the exploration boreholes on the Qinghai Plateau. It can reduce the comprehensive cost of waste drilling fluid treatment while complying with the local environmental protection standards， and fits the operation characteristics of scattered field construction on the plateau. This research can provide equipment and technical support for green exploration construction on the Qinghai Plateau.