the stone over the mouth of the well was large.

understanding of values τ measured at the top of the well

对井口τ值的认识

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optimization of pressure-relieving and depressuring systems of wellhead platform

井口平台压力泄放系统的优化

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study and application of polished rod seating on thermal recovery wellhead

稠油热采井口光杆密封装置的研究与应用

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this paper provides the method and results for calculating stress and displacement of two types of well head faceplate with a thickness of 54 mm by means of finite element.

给出了用有限单元法对厚度为54mm的2种井口法兰盘进行应力和位移计算的方法和结果。

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the unique solution, patented and certified by russia's gost standard, performs automatic multiphase measurement and quality monitoring of hydrocarbon flow coming out right from the wellhead.

这个获得专利并通过俄罗斯GOST标准认证的独特解决方案，自动执行从井口流出油气的多相计量和质量监控。

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the flow velocity detecting system of oil well injected liquid is introduced. the system is composed of the ptcr heat dissipative flow velocity transducer in the pit and the single chip computer based data acquisition system at the wellhead.

介绍了由井下PTCR热散式流速传感器和井口单片机数据采集系统组成的油井注入液体流速检测系统。

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the first stage cementing is conducted to isolate the formation above 30m of the cement basket, and the second stage cementing is carried out through the continuous open stage collar only after the setting of the first stage cement.

一级固水泥，先固水泥伞以上30m，凝固后再用打开式分级箍进行二级固水泥到井口。

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the gathering radius is 1 ￣ 3.5 km, and the back pressure in well head is 1.0 ￣ 1.2 mpa.

油气集输半径1～3.5km，井口回压1.0～1.2MPa。

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this paper introduces a jklq-25 fine filter which can be installed in wellhead to improve injection water quality.

文中介绍了JKLQ-25型注水井井口精细过滤器工作原理。

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the practice and recognition of location of bop at pinghu bg-2 well

东海平湖BG-2井井口回接的实践与认识

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the shot is located in some distance from well and the geophone is positioned inside the well to receive the seismic wave, the method is called vsp which belongs to 2d data acquisition.

非零偏移距VSP就是在距离井口有一定距离的位置放炮，在井内安置检波器接收地震波，属于二维观测。

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property of zg35crmo ( m) for oil production wellhead valve body

采油井口阀体材料ZG35CrMo（M）性能研究

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after an analysis of the disadvantages of the three types of casing heads-the annular plate, the simple and the normal casing heads, the st lock tightened casing head was innovated by huabei oilfield.

通过对环形钢板、简易套管头和正规套管头三种井口装置在使用过程中弊病的分析，华北油田研制成ST锁紧式套管头。

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fourth, esd emergency shut-down valve is set between manifold and well head, which can be used for instant shut in.

④在流程管汇与井口之间设置了ESD紧急关闭阀，可实现瞬时关井。

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model for prediction of crude oil water content at wellhead metering based on cpn neural network

基于CPN网络井口计量原油含水率预测模型

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fpso is neither a ship nor a wellhead platform.

FPSO既不同于船，也不同于井口平台。

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by data processing, p-wave seismic section, ps-wave seismic section can be attained and also the layer attribute can be extracted.

通过资料处理，可以得到井口附近的一段高分辨率的P波地震剖面、PS波地震剖面，也可以提取地层属性参数。

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research and development of high-pressure filter elements for pe well

PE井口高压滤芯的研究与开发

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a strong pull brought one bucket to the top while the other down to the water ．

用力一拉，一只桶就会被提到井口，另一只则会落入井水里。

中考真题- 2017 安徽 任务型阅读

analysis on ansys in shell masonry structure of single arched pithead

地下圆拱式单井口砌体薄壳结构的有限元分析

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