Results indicate that downhole throttling technology is suitable for this gas field and can decrease the wellhead pressure .

结果表明，井下节流工艺适用于该气田气井，能够降低 井口压力。

Hydraulic fracturing or fracking involves pumping a mixture of water sand and chemicals at high pressure into rocks deep underground to open up tiny fissures allowing oil and gas to flow more freely to the wellhead .

水力压裂法的原理是通过高压将掺入沙和化学物质的水注入地底深处的岩层，打开细小的裂缝，使石油和天然气能够更自由地流到 钻 井口。

Its drilling system uses a 380-ton protective casing over the wellhead that is about the size of a six-story office building .

它的钻探系统采用了重380吨、约六层办公大楼大小的保护罩（防爆装置）来保护 井口。

I am water rushing to the wellhead .

我是奔向 泉源的水。

Investigation of Using Stand Pipe Pressure Method to Reduce Wellhead Pressure

关于立管压力法降低 井口压力问题的探讨

Technological progress is the economic growth core factor and economy sustainable development wellhead .

技术进步是经济增长的核心因素和经济可持续发展的 源泉。

It was not until recently that these drilling engineers began to touch on the problem of wellhead control .

直到最近，这些钻井工程师才开始着手研究 井控问题。

The flowrate through the wellhead choke is relate to the wellhead pressure the flow velocity of oil and gas construction of choke .

井口节流器的流量与油井压力、气流速度和节流器的结构有关。

The working method and requirement of the hydrologic reconnaissance for the wellhead field of the alluvial lacustrine plain are systematically expounded in this paper .

本文系统地阐述了冲湖积平原 水源地水文勘测工作方法及要求，结合小 杨庄 水源 地指出了水文勘测工作的重要性。

Summary of research on the method of partition of the groundwater wellhead protection zone

地下水 水源 地保护区划分方法研究综述

The well support division makes electric submersible pumps wellhead pressure control systems and information logging systems .

油井支持部门能制造电动潜水泵， 水源压力控制系统和信息记录系统。

Development and application of the BKR thermal recovery wellhead

BKR热采 井口装置研制及推广应用

Research on Subsea Wellhead System with Analysis and Design of Pack off Assembly

水下 井 口头系统研究及其密封总成 结构设计分析

Numerical analysis and model test for new subsea wellhead base structure

新型水下 井口基盘模型试验及数值分析

Anew forecasting method of wellhead injection pressure for polymer flooding is established based on Dupuit formula .

依据裘比公式建立了一种新的聚合物驱油 井口注入压力预测方法。

Wellhead surface safety valves and underwater safety valves for offshore service

海上 用 井口 上部安全阀和水下安全阀规范

With vertical pipe shield and underwater pile-foundation a protection frame for wellhead is designed for the development of offshore marginal field .

设计了一种适用于海上边际油气田开发的垂直护管水下桩基式 井口保护架。

Through the above information and analysis the assessment organization regards that there is international experience of design and installation of deepwater subsea wellhead for reference and also the designer has sufficient design experience .

通过以上信息和分析，评价机构认为深水水下 井口的设计和安装都有国际经验可以借鉴和参考，同时设计方具有足够的设计经验。

The valve is applicable to the oilfield ( gas ) wellhead casing gas releasing .

本阀适用于油田（气） 井口套管放气用。

Flange widely used wellhead equipment oil trees and other well control equipment for connecting with .

法兰广泛用 井口装置、采油树及其它井控设备，作连接用。

Lift BOP stack and replace wellhead connector AX ring .

吊起防喷器组并更换连接器 AX密封圈。

The utility model belongs to the torque testing device of the screw pump well on an oilfield pump recovery wellhead .

本实用新型属于油田机采 井口上的螺杆泵井扭矩测试装置。

Application and innovation of subsea wellhead tieback technology in marginal oilfield development

水下 井口回接工艺在边际油田开发中的应用及改进

Submerged wellhead platform system

井 眼 几何形状 测井 仪沉没式 井口平台系统

The wellhead saving on water being to save our life is to lift a finger also only .

节约用水，就是节约我们生命的 源泉，也仅仅是举手之劳而已。

Is the wellhead in right place ?

井口 拉正了没有？

In this paper layout the pipeline of the wellhead and the wellhead and calculate amount of heat transfer and heat release receive the amount of coal-bed methane gas burning .

依据制冷量，合理的布置 井口 保温管道并对井口传热量和散热量的计算，得到煤层甲烷气的燃烧量。

Problem analysis for wellhead and christmas tree standard in the enterprise standard adoption work Specification for drilling equipment

对《 井口 装置和采油树设备规范》企业采标中几个问题的分析

Make preparations for installing the wellhead quickly and killing well .

做好 抢装 井口和压井准备。