Equipments Configuration And Safety Evaluation Of The Rig Solid Control System

Solid control system is the most complicated and important mechanism of drilling rig system. Perfect solid control system could control solid particles effectivly, which might reduce the probobility of drilling complex and accidents, solid control system is the crucial technique to achieve safe, efficient and economical drilling. Solid control system consists of shale shaker, cyclone, centrifuge and mud tank etc., once one of solid control equipments breaks down or the assembly is inappropriate, the overall performance of solid control system might be severely compromised and the risk probobility of drilling accidents would increase accordingly. Therefore, it has practical significance in assessing the performance of solid control system and optimizing the equipments.Firstly, according to the literature survey of solid control system in home and abroad, the main features of the Solid control system equipments were analyzed in this paper. Meanwhile this paper studied the matching rules according to debris particles characteristics and drilling fluid nature, and mainly the performance of solid control system equipments. Thereby, we could select the solid control equipments meeting specific performance requirements according to the matching requirements.Secondly, FTA method was used to analyze causes to system's failure on the basis of system risk analysis methods and HSE management. By analyzing and assessing the overall performance of solid control system, the factors causing system's failure and potential safety hazard were indentified, including equipments'fault and drilling complex & accidents caused by equipments'or system's fault. Meanwhile, the adjustment measures were also presented.Then, in this paper the performance of major equipments was tested and assessed by experimental way. Whether the plate parameters meet the requirement could be verified by compareing the experimental datas. As solid control system does not need all the equipments, the paper analyzed the feasibility of adding some equipment. Finally, drilling rig equipments optimal selection system was developed in this paper by VB.NET+SQL. In the solid control equipments optimal selection modul, the field drilling engineers could quickly figure out reliable, safe and economical schemes for the solid control system.