青海高原绿色勘查用废弃泥浆处理装置设计与应用

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

摘要:

针对青海高原地质勘查钻孔施工中，存在废弃泥浆与尾浆体积量大、处理成本高，且高原生态环境脆弱、环保要求严苛，现有处理技术与装备难以适配现场需求的现实问题，本文开展了适配青海高原环境的绿色勘查废弃泥浆处理装置研发工作。梳理了当前废弃泥浆常用的物理、化学处理技术，通过现场调研明确高原勘查施工对泥浆处理的实际需求，完成了处理装置的结构设计、论证与加工，并开展现场应用试验，对处理后产出物的各项环保指标进行检测分析。试验结果表明，本文研发的废弃泥浆处理装置可有效实现青海高原勘查钻孔废浆的减量化、无害化处理，在满足当地环保要求的同时降低泥浆处理综合成本，适配高原野外分散施工的作业特点。本研究可为青海高原绿色勘查施工提供装备技术支撑。

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.