core axis

Based on the investigation on homemade spindle core drilling machine,designing plan was put forward to dual-use drilling tower for vertical and inclined holes,which changed the history that homemade spindle core drilling machine could not be used in inclined hole construction,further developed application range of homemade spindle core drilling machine.

在调研国产立轴式岩心钻机的基础上,经过充分论证,提出了直、斜两用钻塔的设计方案。

Primary research on lateral accretion with horizontal well core samples;

水平井岩心侧积夹层初探

Core Test of Profile Control and Displacemrnt by Combining Weak Gel with Microbe;

弱凝胶与微生物调驱联作技术岩心试验研究

Experimental research of the transmission characteristic of low frequency hydrodynamic oscillation in cores;

低频水力振动在岩心中的传播特性实验

This is due to the skin effect of cores.

实测的岩石压缩系数数值普遍偏高,甚至高于地层原油的压缩系数,该现象是由于岩心的表皮效应所致。

A method for determining oil and water saturations in cores by volume?_CT scanner was developed on the basis of X_ray hardening treatment,X_ray drifting correction,martix transformation of imagines and position correction of CT images with volume?_CT technology.

对CT图像进行了X射线硬化处理、X射线漂移校正、图像矩阵变换及体积CT位置校正 ,研究出用体积CT对岩心流体饱和度进行测量的技术。

The changes of relative permeability for oil phase,kro, and for water phase, krw, determined at 80℃ in oil displacement experiments on cores by formation water (FW) of Caoqiao, Shengli, and 1% solutions of anionic surfactants HD1 and HD2 in FW (HD1, HD2 solution) are investigated.

通过岩心流动实验,测定了80℃时胜利草桥某井地层水、两种磺酸盐类阴离子表面活性剂HD 1和HD 2的1%地层水溶液驱油时,油相和水相相对渗透率kro和krw的变化。

The pore structure,oil and water flow mechanics including the lithology of sandstone core,electricity curve and relative permeability curve were characterized by fractal.

砂岩岩心不仅孔隙结构具有分形特征,而且油、水在岩石内部渗流过程中岩电特性曲线和油、水相对渗透率曲线也具有分形特征。

The Determination of Rock Mechanics Parameter of Reservoir Core During Sandstone Matrix Acidizing

砂岩基质酸化前后储层岩心岩石力学参数测定

Cuttings and core from the drill-holes have intersected conglomerate bands.

钻粉和岩心已穿过了砾岩夹层。

continuous sidewall core cutter

连续式井壁岩心切割器

permeability plug

测定渗透率的岩心块

retractable ore barrel

可缩小取出的岩心筒

weight-saturation method

称重测岩心饱和度法

Core orientation and its Progress

钻探定向岩心的用途和岩心定向技术的进展

Three dimensional simulation core restoration based on core outside surface images

基于岩心外表面图像的三维模拟岩心恢复

Study on short core and long core flow simulation tests during sandstone matrix acidizing

砂岩基质酸化中的短岩心和长岩心流动模拟试验研究

A CORRECTION OF OIL-AND WATER-SATURATION OBTAINED FROM SEALED CORE ANALYSIS

密闭取心井岩心油、水饱和度校正方法

Technique of Putting in Stalk Through Pulling Apart Core in Coring with the Long Core Barrel in Sichuan Hard Rocks

硬地层拨断岩心接单根长筒取心技术

Application of Lengthening Coring Barrel of SYZX75 Wire-line Coring Hydro-hammer

SYZX75绳索取心液动锤加长岩心管的应用

Research and evaluation of the manufacturing methods of the mineral-wide simulated core in sandstone reservoir

砂岩储层全岩矿物模拟岩心的制作方法研究与评价

Experimental Study on m Value of Pure Sandstone Skeleton Core Sample with different Particle Sizes

不同粒径纯砂岩骨架岩心的m值实验研究

Numerical simulation of rock electrical properties based on digital cores

基于数字岩心的岩石电性微观数值模拟(英文)

Effects of Water Base Hydrofracturing Fluids on Zeta Potential of Sandstone Reservoir Rock Core in Aqueous Media

水基压裂液对砂岩储层岩心zeta电位的影响

Such rock samples are called cores, and it is possible to analyze them by both geological and geochemical methods.

这种岩石样品叫做岩心。可用地质的和地球化学的方法对岩心加以分析。

Diamond core drilling equipment conventional system

GB/T16950-1997金刚石岩心钻探钻具设备