钻井液性能在线监测系统的研制与现场应用

钻井自动化是石油行业发展的必然趋势，钻井液性能自动化测量技术也已开始从室内走向现场。研发出一套钻井液性能在线测量仪器，该仪器具有实时测量、连续记录、自动测量、数据远传4个特点，采用变径管式流变性测量方法、双管串联型振动管、离子选择电极法进行钻井液性能测量，通过采集系统将测量结果进行整合；所采用的软件分为9个界面，将测量结果以图形形式直观地展示出来。该仪器在胜利油田多口井和中海油3口高温高压深井进行了现场应用，应用的最高密度达2.30 g/cm3，仪器测量数据与人工手动测量结果基本一致，误差在设计范围内。该仪器的应用能够有效提升钻井效率，保障井下安全，该技术是国家油气安全战略的需要，对加速钻井自动化、信息化、智能化升级改造有着非常重要的意义。 

Development and Field Application of an Online Drilling Fluid Property Monitoring System

Drilling automation is an inevitable trend in the development of petroleum industry, and the automatic measurement of the drilling fluid properties is now finding more and more application in field operation instead of just being a laboratory tool. The Research Institute of Drilling Technology of Shengli Oilfield (Sinopec) has recently independently developed an instrument that is used to online measure the properties of drilling fluids. The instrument can be used to measure the properties of drilling fluids in a real-time, continuous and automatic manner, and the measuring data can be transmitted to remote area. Drilling fluid properties measured with variable diameter rheology test method, dual-tube serial vibrating tube and ion-selective electrode method are integrated by a data acquisition system. The software used with the measuring instrument has nine pages displaying intuitively the acquired data in graphical form. This instrument has been tried in the drilling of many wells in the Shengli Oilfield and three HTHP deep wells by CNOOC, the highest density of mud used was 2.30 g/cm3. Properties measured with the instrument are basically consistent with the manually measured data, with test errors being in the designed ranges. Using this instrument, drilling efficiency is enhanced and downhole safety is ensured. The development of this instrument is required by the national oil and gas safety strategy, and is of great significance to the acceleration of drilling automation, drilling informatization and intelligent upgrading and transformation of drilling operation.