井壁

定向扫描成像测井技术，就是按照规定的方向对井壁进行扫描，把井壁展开成一个连续的平面。

Technique of well logging by directional scanning image means scanning the wall of a well according to the given direction , and makes the wall of a well be unfolded to a continuous plane .

文中着重介绍了图像处理部分，使用直方图均衡化等方法对井下图像进行图像增强处理，使工程人员能够更有效的分析和确定井壁裂纹、磨损、弯曲等状况。

This paper puts emphasis on image processing which makes use of histogram equalization method for image enhancement , which making engineer effectively analyze and making certain flaw , abrasion , bend of wall of a well .

在WINDOWS下用C语言编制了井壁电成像测井资料定量评价软件，并进行了资料处理。

Quantitative evaluation software is programmed with C-language under WINDOWS and is applied in data processing .

泥页岩的X射线衍射定向指数与理化性能及井壁稳定的关系

A Study on Relationship Between Orientation Index of Shales by X ray Diffraction and Physicochemical Properties and Well bore Stability

该方法结合APIRP14E标准可对钻柱和井壁的冲蚀临界速度进行计算，计算研究表明可通过加载回压控制其冲蚀作用。

The critical erosion velocity of the part element can be computed in this method with the criterion of API RP 14E .

同时给出了利用地震层速度预测地应力的BP神经网络模型，以在钻前预测井壁稳定性。

Meanwhile , the predicting method of stress is proposed based on BP 's neural network by using the seismic interval velocity , in order to predict borehole wall stability .

本文介绍了土壤源热泵垂直埋管式换热器的三种不同简易计算模型，引入不同的导热形状因子，并利用G函数来确定管井井壁的温度。

Three kinds of simple heat transfer models of ground source heat pump systems equipped with vertical U-tube ground heat exchanger are introduced . G-function and conduction shape factors are employed to calculate the sidewall temperature of tube-well .

THY修井暂堵剂是以油溶性树脂作为桥堵剂，桥堵储层孔道，在井壁形成屏敝层.从而减少修井液的漏失。

THY temporary plugging agent is used to bridge off reservoir pore , produce borehole wall shielding zone , and then reduce leakage of workover fluid by taking oil-soluble resin as bridging - off agent .

地层微电阻率扫描图像（FMI）采样密度和纵向分辨率很高，可以直观地显示井壁地层特征。

Formation microscanner images ( FMI ) can show directly subtle changes of sidewall formation and provide abundant formations information .

结合工程实例，提出了500～600m条件下冻结段立井井壁施工方法。

The article integrated example of engineering , put forward the construction method of cenote sidewall 's freezing crust under 500 - 600 meters .

在转盘钻井时，BHA控制井斜与方位是由近钻头稳定器与井壁的接触方位角、接触反力及摩擦阻力综合作用的结果；

In rotary drilling , the control inclination and azimuth is the result that the contact angle , force and resistance act as between the near stablizer and hole wall .

HH-2钻进式井壁取心器的研制

Development of HH-2 rotary sidewall coring tools

同时，利用井壁崩落法、钻井诱导缝法和DSI快横波方位法确定了新疆迪那气田目的层的水平主应力方向。

Furthermore , the horizontal stress direction of the target zone in the gas field is determined by means of borehole breakout data , drilling-induced fracture and DSI Fast shear azimuth .

在MCNP的基础上，开发了井壁超热中子时间谱测井蒙特卡罗（MonteCarlo）模拟软件包。

The Monte Carlo calculating software packet was developed for wall epithermal neutron time spectrometry logging on the basis of MCNP . The wall epithermal neutron time spectra of simulated open holes were calculated , which vary with the porosity of formation .

与常规的地层坍塌压力和破裂压力计算公式不同，该模型从应力分析和岩石强度参数着手，结合Mohr-Coulomb准则进行井壁稳定性判断。

Being different from the regular collapse and fracture pressure calculating formulae , this model adopts the Mohr-Coulomb strength criteria to judge the stability of wellbore according to the stress analysis and rock strength parameters .

针对550～700m巨厚冲积层中煤矿立井井筒的支护难题，提出采用钢筋钢纤维高强混凝土的井壁结构。

Aiming at the difficult problem of reinforcement for coal mine shafts in the deep alluvium of 550 ~ 700 m , the steel fiber reinforced high strength concrete shaft lining is proposed .

考虑了混凝土水化放热情况，建立了冻结法施工凿井冻结壁井壁温度场数值计算模型，运用有限元软件ANSYS对冻结井壁温度场进行计算，得到了冻结井壁温度场分布变化特性。

Through the consideration of freeze borehole wall temperature field , it is established that the numeric calculation medal of concrete hydration heat . The temperature field on the frozen wall and the characteristic distribution of temperature are obtained by using software of ANSYS of finite element program . 7 .

本文介绍近年来三个矿井利用C-S双液浆和化学浆处理井壁淋水的方法、材料、反应机理和堵水效果。

This paper is introduced the method , grouted materials , principles and effects of sealing water in shaft wall with C-S grout and chemical grout on three shafts in recent years .

HH-2钻进式井壁取心器是在垂直井壁方向上获取岩芯的机电一体化设备，对全面了解岩心在地下的状态并进行油井开发起到了至关重要的作用。

HH-2 rotary sidewall coring tool is an electromechanical integrative equipment to obtain coring in the direction perpendicular to borehole wall .

利用有限差分法和Newton迭代法，计算了斜直井段管柱螺旋屈曲临界力、沿螺旋段分布的管柱与井壁接触力以及后屈曲平均侧向接触力。

The critical load of the pipe helical buckling , contact force distribution of pipe on the bore hole and the average side contact force of the pipe post buckling in the horizontal section of horizontal well are calculated by using the finite difference method and the Newton iteration method .

地层微电阻率扫描成像测井（FMI）是斯伦贝谢公司最为先进的成像技术，具有极高的垂向分辨率，能直观的显示井壁地层的细微变化，反映了储层及构造特征。

Formation microscanner logging represents a most advanced imaging technology of Schlumberger . With a high resolution , its image can show intuitively the subtle changes of sidewall formation , and the structure features of reservoir .

运用动力间隙元不仅能合理描述钻柱与井壁的接触碰撞过程，还能考虑井壁变形和泥饼的能量吸收，并用Newmark法求解钻柱动力学平衡方程。

This model is solved by dynamics gap element which can not only describe the contact and impact between drilling string and bore hole wall but also present the deformation of bore hole wall and energy absorption of mud cake . The dynamic equilibrium equation is solved by Newmark method .

研究表明，该种新型井壁结构形式具有在井下装配后即可满负荷工作，承载能力大、受力特性好等优点，适用于400m以上深厚表土层冻结井外层井壁支护。

Study indicates that , the new type shaft wall structure shape can work under full loading after assemblage in shaft , and it has great loading capability and good mechanics characteristics . It applied to outer shaft wall supporting in frozen shaft in deep alluvium which deeper than 400 m.

钻头与井壁碰撞模型的建立及分析60年代Darley等人发现低波美度（<20%）硅酸盐泥浆具有好的稳定井壁能力，使用稀硅酸盐无机盐体系钻井三口。

Model of impact between rock bit and wall of well . By 1960s , Darley discovered that silicate drilling ( < 20 % ) have fine stability of wall of well and maked three hols with it .

冻结壁融化阶段井壁温度应力研究

Thermal stress analysis of shaft in melting stage of frozen wall

立井基岩段井壁设计问题的研究

Study of walling design in base rock segment of vertical shaft

坍塌压力与井身结构设计和井壁稳定技术关系初探

Relation of caving pressure with casing program and hole stability technique

表土沉降阶段煤矿立井井壁破裂应力分析

Rupture stress of shaft wall in mine due to ground subsidence

一种室内评价空气雾化钻井用井壁稳定剂的方法

A laboratory evaluation method for wellbore stabilizers in air mist drilling

聚能效应切割钢筋混凝土井壁

Explosive Cutting of Reinforced Concrete Shaft Wall by Shaped Charge Effect