气井

The factors affecting postfrac productivity are discussed in the paper. The grey associability ordering indicated that the postfrac productivity was lowly correlated with the permeability interpreted by the original log data and mainly influenced by porosity, then effective thickness, and then shale content and formation pressure. In light of the genetic neural network method, the productivity of gas well was predicted by use of the log data through programing and model training. The error detecting result proved that the model was reliable and a good application effectiveness was obtained.

文章对压后影响产能的因素进行了讨论，灰关联度排序表明，压后产能与原始测井解释的渗透率关联性小，而主要影响因素依次是孔隙度、有效厚度、泥质含量和地层压力；引用遗传神经网络法，编制预测程序，利用测井资料通过模型训练，对气井的产能进行预测，误差检验验证了模型的可靠性，取得了良好的应用效果。

Index equation and binomial expression are the main methods to determine the absolute open flow capacity of a gas well at present.

目前确定气井绝对无阻流量的方法主要是指数式和二项式。

Nevertheless, the traditional binomial produ ctivity equation can't work under the formation pressure unknown.

气井产能方程能够直接描述流压与产量的关系，但是传统的二项式产能方程在地层压力未知或者地层压力不准的情况下无法使用。

A numerical model of critical sand production was established to provide a basis for preventing sand from fracturing gas wells.

建立了压裂气井出砂临界产量数学模型，为防止压裂气井出砂提供了依据。

A rational gas-producing rate is essential for a gas well because liquid loading sometimes will totally block the well, and from economic perspective, an economic ultimate recovery rate and well spacing are also necessary.

积液有时会完全压死气井，所以气井要有一个合理的采气速度。从经济方面考虑也要有一个经济极限产气速度和井网部署。

Herein through investigation on the collected CO2 corrosion data from different CO2-contained oil and gas fields, this study analyzed the serious damage and hazards on the gas production, summarized up the general rules of CO2 corrosion and its peculiarities at different areas. According to studies on phenomena, features, mechanism, and influencing factors on CO2 corrosion, this study put forward that a few effective countermeasures should be taken for anti-corrosion technology including injecting corrosion inhibitor, adopting stainless steel or bimetallic materials for the combination casing strings or well tubings.

为此，对我国几个不同类型含CO2油气田的现场的CO2腐蚀资料进行了调查、研究，分析了CO2腐蚀给天然气生产带来的严重危害性，总结出在不同类型油气田中CO2腐蚀的一般规律和不同区域CO2腐蚀的特殊性；在对CO2腐蚀的现象、特点、类型、机理以及腐蚀的影响因素研究的基础上，提出了含CO2气井防腐工艺技术应着重解决好含CO2气井的完井、生产管柱采用不锈钢或双金属复合油管、加注缓蚀剂等几种有效的防腐蚀措施。

The application of through-tubing perfora- ting technology in gas well completion and stim- ulation and the problem on the plugged per- forated toles are discussed in this paper,Tte aspect of through-tubing perforating in gas well of Southern Sichuan in 1981 is preeented briefly, and some ideas about prospective of applying this technology in Sichuan gas fields are stated as well.

本文探讨过油管射孔在气井完井和增产中的应用，以及射孔孔眼堵塞问题。文章扼要介绍了1981年在川南气井中应用过油管射孔的情况，并对在四川气田应用该技术的前景，提出了几点意见。

In order to find out the cause of gas well corrosion,the correlative processing of corrosion environment data measured at well site in Zhongyuan oil field was done by use of the grey association analysis method in grey theory on the basis of the material failure analysis and indor simulation test of tubing.

为了弄清气井腐蚀原因，在对油管进行管材失效分析和室内模拟试验的基础上，应用灰色理论中的灰关联分析方法对中原油田现场实测的腐蚀环境数据进行了相关处理，分析了影响气井油管腐蚀的主要因素并探讨了其腐蚀规律。

Lastly, the paper calculate a low sulphur gas well and a high sulphur gas well of CZ plant as the example, use the software to calculat process and economic terms, through comparativing, the costs of building pipelines are far more than the costs of entire skidded-mounted devices.

最后，分别对CZ气田的一口低含硫天然气井和一口高含硫天然气井实例分析。

However, reports on the method of wellbore pressure calculation for tubing- casing production system of gas wells are rare.

气井井底流压是分析气井生产动态的重要参数之一，目前国内外很少报道油套合采时井底流压的计算方法。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。