油气井工程

油气井工程中地应力场反演研究的发展

Development of inversion study on in-situ stress field in petroleum engineering

油气井工程中普遍存在控制问题。

Control problems generally exist in oil and gas well engineering .

受横向约束管柱的屈曲是油气井工程的关键问题之一。

The buckling of tubulars is a key problem in the oil industry .

油气井工程中的一个新领域&井下控制工程学浅谈

New Field of Oil and Gas Well Engineering : Discussion on Theory of Downhole Control Engineering

由于油气井工程的复杂性和不确定性，优化问题本质上呈现多目标性、影响参数复杂多变，迫切需要引入新的科学的优化方法及理论来解决。

Due to the complexity and uncertainty of oil and gas drilling engineering , the optimization turns to be a multi-functional problem which has complex influence factors .

井壁失稳一直是困扰油气井工程的难题，泥页岩渗透特性的定量测定是评价泥页岩井壁稳定性的重要指标之一。

The problem of wellbore instability has been puzzling drilling operations all the time , and to quantify the permeability of shales is an important index to estimate shale-borehole 's instability .

对钻井过程中产生的原始数据，应用不确定性理论中的方法进行分析总结，从钻井工程本身的基本特点出发，建立油气井工程数据信息的分析方法。（2）钻井工程信息数据库理论研究。

Analyse the orginal data obtained from drilling process using uncertainty theory . Build up the drilling data information analysis method . ( 2 ) Theoretical research on the drilling engineering information database .

即：压力控制是油气井钻井工程的核心技术；

The pressure control is a key technique of oil and gas drilling ;

随着各类挖掘机广泛应用于矿山开采、隧道开挖、油气井钻进等实际工程中，对岩石破碎理论和技术提出了新的挑战。

Rock crushing theory and technology is facing new challenges while various types of excavators are widely used in mining , tunneling , oil and gas well drilling engineering .