地层压力模拟测量短节研制  

Development of Formation Pressure Simulation Gauging Nipple

作　　者：钱德儒[1] 郑俊华[1] 高润峰[2] 王磊[1] Qian Deru;Zheng Junhua;Gao Runfeng;Wang Lei(Sinopec Research Institute of Petroleum Engineering;Sinopec Huabei Oil&Gas Company)

机构地区：[1]中国石化石油工程技术研究院 [2]中国石化华北油气分公司

出　　处：《石油机械》2021年第4期58-63,共6页China Petroleum Machinery

基　　金：中石化科技攻关项目“井下动态参数测量系统工程化研究”(P20048-4)。

摘　　要：地层压力随钻测量仪器由机械、电子、液压等部分组成,内部安装空间小,结构复杂,集成难度大。为降低仪器研发风险,开展了地层压力模拟测量短节的研制,通过三维可视化技术建立了模拟测量短节虚拟数字样机,使用液压阀插装技术对输出压力20 MPa微型液压系统等关键模块进行了攻关研究。同时研制了地层压力模拟试验装置,作为模拟测量短节室内高温高压试验及测试原理验证平台。经实测,模拟测量短节在120℃、60 MPa环境下运行稳定。选取1×10-3和320×10-3μm 2两种渗透率岩心考察了测量短节测试原理,得到了地层压力测试曲线,测量准确率达到96%。室内试验验证了模拟测量短节测量原理的正确性及测量数据的准确性,该短节的研制成功为地层压力随钻测量工程样机的研制打下了坚实基础。The MWD tool for formation pressure is composed of mechanical, electronic and hydraulic components. The internal installation space is small, the structure is complex, and the integration is difficult. In order to reduce the research and development risk of the tool, the formation pressure simulation gauging nipple was developed firstly. The 3D visualization technology was used to establish the virtual digital prototype of the simulation gauging nipple. The hydraulic valve insertion technology was used to study the key modules such as the micro hydraulic system with an output pressure of 20 MPa. Meanwhile, a formation pressure simulation test apparatus was developed as a platform for indoor high-temperature and high-pressure test and test principle verification of simulation gauging nipple. Actual measurement shows that the simulation gauging nipple runs stably at 120 ℃ and 60 MPa. Cores with permeability of 1×10 -3 μm 2 and 320×10 -3 μm 2 were selected to investigate the gauging nipple test principle, obtaining the formation pressure test curve, with measurement accuracy reaching 96%. The laboratory test verified the correctness of the measurement principle of the simulation gauging nipple and the accuracy of the measurement data. The research results lay a solid foundation for the development of formation pressure MWD engineering prototype.

关 键 词：地层压力 测试原理 测量短节 微型液压系统 试验装置 

分 类 号：TE973[石油与天然气工程—石油机械设备]