雄安新区地热D20井钻井液固控循环系统应用分析

Drilling fluid solid control circulation system for drilling of geothermal exploration and production Well D20 in Xiongan New Area

摘要:

根据环保要求和雄安新区地热D20探采井钻探工程需求，开展钻井液固控循环系统研究和应用效果分析工作。整套系统由4+1个模块化封闭罐体组成，配置五级净化设备,满足钻探实施过程中钻井液的配制、储备、循环、净化、补给、加重及井下复杂情况处理等工艺需求与闭环处理环保要求。现场应用表明，系统满足绿色勘查要求和D20探采井钻探工程需求，但在结构设计及优化配置等方面有待进一步改进，并提出优化建议。

Abstract:

According to the requirements of environmental protection and drilling of geothermal exploration and production Well D20 in Xiongan New Area, the research and application effect analysis of the drilling fluid solid control circulation system are carried out. The whole system is composed of a “4+1” modular closed tank body equipped with five-level purification facilities, which can meet the process requirements for treatment of downhole complex situations, such as drilling fluid make-up, storage, circulation, purification, replenishment, dosing, weighting; as well as the environmental requirements for closed-loop circulation. The field application shows that the system can meet the requirements of green exploration and drilling of exploration and production Well D20, but it needs to be further improved in terms of structural design and optimal configuration. Some suggestions are put forward in the hope of providing reference and guidance for the reasonable practicability of system design and configuration and the economy of drilling engineering.