直井

水平井与直井整体开发渗流理论研究

The Study of Integral Development Percolation Theory with Horizontal Well and Vertical Well

定向羽状水平井和直井压裂是两种有效的煤层气增产措施。

Pinnate horizontal multilateral well and vertical well fracturing are efficient technology which can increase coalbed gas recovery rate .

应用DQE增量迭代法分析斜直井内管柱的非线性屈曲

Nonlinear Buckling Analysis of Tubular in a Deviated Well with Differential Quadrature Element Incremental Iteration Method

对凤城超稠油油藏.宜采取直井与水平井组合方式布井.水平井水平段长度应在200～300m之间，水平井位于油层底部；

For super heavy oil reservoir of Feng-cheng , combined pattern of vertical and horizontal wells is available . foe length of horizontal interval should be 200 ~ 300 m in bottom of the reservoir ;

在一开和二开的直井段以MMH和FTJN为主处理剂，配合使用聚合物，控制粘土造浆，抑制粘土分散，达到井眼稳定的目的；

MMH and FTJN are used as the main additives in the polymer system to control mud making and clay dispersion in the upper vertical hole .

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 .

位于新疆牙哈地区的YH23-2-4井是在某直井基础上填井侧钻而成的凝析气田水平井。

YH23-2-4 well is a sidetrack horizontal one in a condensate field located in Yaha district of Xinjiang , which was a straight one before .

利用提出的方法，开发了一套Turbo-Pascal动态图形仿真软件，在IBM-286微机上成功地对新型斜直井抽油机的运动作了动态图形仿真。

A successful dynamic graphic simulation software of Turbo-Pascal is developed on IBM-286 microcomputer . It simulates the movement of a new type of beam pumping unit for slant-straight well satisfactorily .

水平井与直井联合布井的产能计算

Production capacity calculation of combined distribution of horizontal and vertical wells

低渗透煤层气藏直井开采数值模拟研究

Numerical Simulation of Vertical Well for Low-permeability Coal Seam Gas Reservoirs

直井抽油杆柱磨损机理及原因

The abrasion mechanism and cause analysis for straight well rod string

稠油斜直井有杆泵抽油技术

Sucker rod pump technology of slant hole in viscous oil reservoir

斜直井示功图预测的有限元法

Finite element method for predicting dynamometer card of slant straight well

河南油田直井钻机钻浅层水平井钻井技术

Shallow horizontal drilling technology by using vertical-well rig in Henan Oilfield

小眼井直井防斜钻具结构设计及应用

The design and application of anti deflection BHA for vertical slim hole

钻直井螺杆钻具止推轴承载荷计算

Calculation of load on thrust bearing of screw drills in straight hole

由于水平井实际井深与垂直井深的差别，水平井的压井与直井的压井存在着差异。

The killing method of horizontal well is different from vertical well .

水平井与直井联合开采问题&五点法面积井网

Combined production of vertical and horizontal wells & a 5-spot well pattern

小位移直井钻井综合防斜纠斜技术

Drilling Techniques for Preventing Small-Displacement-Hole from Inclination and Straightening Holes

直井防斜钻具组合技术综述

A summarization of deviation controlling drilling tool assembly technique for straight well

采用直井的参数解释方法进行随钻地层参数解释；

Parameters can be interpreted through the method used in straight wells .

直井钻井液粘性产生的波动压力的理论分析

Analysis on surge pressure caused by mud viscosity in a vertical well

非直井抽油杆扶正器安装位置的确定

Determination of mounting location for rod centralizer in non - straight well

斜直井下部钻具设计与力学分析

Design and mechanics analysis of bottom hole assembly in inclined straight wells

首先，对普通直井的产能做了递减分析。

Firstly , rate decline analysis with common vertical wells is made .

斜直井游梁式抽油机的优化设计及图形仿真

Optimum Design and Graphic Simulation of Beam Pumping Units for Slant Holes

非直井井迹优化设计与决策分析应用研究

Application and Research on Non-Straight Well Trajectory Optimization Design and Decision-making Analysis

分支水平井和直井井网油水两相渗流理论研究

Oil-water 2-phase percolation theory for horizontal and vertical well patterns

直井牙轮钻头碎岩功率研究

Study on Roller Bit Rock-Breaking Power in Vertical Wells

水平井与直井联合井网见水时间的确定方法

Determination of water breakthrough time in horizontal-vertical well pattern