The oilwell cement with crystallite exhibits high performance and low cost.
微晶水泥具有低成本、高性能的特点。
This paper introduces the properties of cement additive, hollow float beads, and its application in oilwell cementing.
本文介绍了水泥外加剂——空心漂珠的特性及其在油田固井中的应用。
Based on the oilwell feature to reflect earthquakes. we have studied the mechanism of oilwell dynamic anomaly formation.
在分析油井映震特征的基础上，着重对油井动态异常的形成机理进行了研究。
The dynamical properties of oilwell pump under quasi-steady landing top movement is analyzed using mechanical vibration theory.
应用机械振动理论，对准匀速悬点运动下抽油泵的动力特性进行了分析。
This paper introduces the construction of hardware and the design of software of a tester for the oilwell system based on AT89C51.
本文介绍了基于AT 89 C 51单片机的油井测试系统的原理及系统的硬件组成和软件设计方案。
The fishing magnet and recycle fishing basket have always been used for fishing the ch ips and sm all junks in the oilwell bottom.
油井井底碎屑和小件落物的打捞一直沿用强磁打捞器和循环打捞篮。
Comparison between the oilwell jet pump and other artificial lifting equipment shows that the jet pump is more suitable for oil recovery from complicated Wells.
将采油喷射泵与其他人工举升采油设备进行的分析对比表明，喷射泵更适用于复杂油井的开采。
The following conclusions are obtained: There are sensible elastic deformation and brittle failure feature in the oilwell cement under monopodium stress conditions.
结果表明，单轴应力条件下水泥石具有明显的弹性变形及脆性破坏特征；
The experimental results were indicated that salt-tolerance and thermal stability were improved, therefore, it can be used as a water loss control additive in oilwell cement.
实验证明：磺甲基化聚丙烯酰胺的抗盐性和水溶性均得到改善，可用作油井水泥降失水剂。
From a spare part to a comprehensive drilling system and from a generic valve to a fully integrated supply chain process, National Oilwell Varco delivers unlimited customer solutions.
从一个备件到一套完整钻井系统，从一个普通的阀门到一套集成的供应链程序，国民油井华高提供各种无限制的用户解决方案。
The paper introduces a data transmission method for wireless testing of oilwell underpit parameters (pressure and temperature) and low power consuming control circuits of underpit emission devices.
介绍一种油井井下参数（压力、温度）无线测试的数据信息传输方法及井下发射装置低功耗控制电路。
The paper introduces a data transmission method for wireless testing of oilwell underpit parameters (pressure and temperature) and low power consuming control circuits of underpit emission devices.
介绍一种油井井下参数（压力、温度）无线测试的数据信息传输方法及井下发射装置低功耗控制电路。
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