sink and float method

The study of well test interpretation method for a triple medium reservoir;

裂缝和洞与井筒连通的三重介质油藏试井解释方法研究

It is very difficult to match well test data of triple medium reservoir by hand because there are more parameters to be analyzed.

三重介质试井分析需要解释的参数较多,用人工拟合非常困难。

A new concept of triple medium permeable-storage system for Ordovician carbonates in Tahe oil field is presented, and the criteria is defined differentiating cave system, fracture system and rock block system.

探讨了塔河油田奥陶系碳酸盐岩油藏三重介质储渗系统的识别、划分和与之相对应的水驱油机理,具有高孔低渗特征的岩块系统主要靠自吸排油方式水驱油,在驱替压力和重力作用下,高孔高渗特征的洞穴系统水驱油近乎均匀推进,低孔高渗特征的裂缝系统水驱油易发生指进和突进。

Coal dry beneficiation with air-dense medium fluidized bed(ADMFB) is a nonlinear,and multivariable coupling system.

针对空气重介流化床干法分选系统具有多变量、非线性、强耦合和参数不确定性的特点,提出了两级串联结构的自适应模糊神经网络解耦控制策略,前级为基于连续性智能权函数规则的自调整模糊控制器,后级为基于动态耦合特性的自适应神经元解耦控制器。

This paper mainly discusses the contribution and the characteristics of mediumdraining screen in the air-dense medium separation system.

本文简要论述了干法脱介筛在空气重介干法分选工艺系统中的作用及特点；阐明了干法脱介筛的工作原理及结构特点；说明其主要参数选取的依据及方法。

Principle and problems existing in use about 2ZQB2030 medium draining screen,the matching equipment of dry coal cleaning by use of air-dense medium fluidized bed was introduced.

介绍空气重介流化床干法选煤的配套设备2ZQB2030干法脱介筛的工作原理,分析运用中存在的问题,针对存在的问题提出了相应的改进措施。

Analysis on pressure behavior of trilinear flow model of vertical fracture wells in triple porosity reservoir;

三重介质三线性流垂直裂缝井压力动态分析

According to limit conductivity vertical fracture conducted by hydraulic fracture in triple porosity reservoir, based on the Warant-Root model in double porosity, mathematical model with continues point source has been built firstly.

针对三重介质油藏进行水力压裂后形成的有限导流垂直裂缝,结合沃伦—鲁特提出的双重介质模型,建立了三重介质连续点源解数学模型。

This paper introduces the components of the magnetite and the application and standard of the magnetite powder in the heavy medium coal washing,and probes into the management and control of the medium consumption in the heavy medium coal washing from three aspects of the quality of medium,the management loss and the technical loss.

介绍了磁铁矿的组成及重介洗煤中磁铁矿粉的使用情况与标准,从介质质量、管理损失、技术损失3个方面探讨了重介洗煤中的对介耗的管理和控制。

The problems of the old heavy medium system are analyzed,the reform measures are made,and the resule of the reform is introduced,which have a certain reference significance.

分析了原重介系统存在的问题,制定了改造措施,介绍了改造后取得的效果。

There are different species and diversities of gravity mine equipment and vertical-wheel dense media size classification machine is one of the important one of them.

重力选矿的设备形式多样,品种繁多,立轮重介质分选机就是重力选矿的重要设备。

Analysis of Dense Media Density Automatic Control System;

本文介绍了潘三矿选煤厂重介质密度自控系统的构成和工作原理,总结了该系统设计的特点,并分析了该系统在实际运行中存在的问题,提出了改进的措施。

Transient productivity model is established for pressure-sensitive triple media reservoir composed of basement system,fracture system and cavity system with consideration of cavity permeability declining exponentially with the increasing of pressure drawdown.

建立由基岩系统、裂缝系统和溶洞系统组成,并考虑溶洞渗透率随压降的增加呈指数减小的压敏三重介质油藏不稳态产能模型,采用隐式差分格式对考虑井筒储存和污染效应的情况进行了求解,讨论了无因次渗透率模数、介质间窜流、弹性储容比、外边界条件以及表皮系数对不稳态产能的影响。

The article mainly introduces the feature of total dense medium process technolongy and the using effectivness of slime dense medium process technology in new skill,then,anslyzes that dense medium process effect on flotation technology and the dewatering of floatation concentrate.

主要介绍淮北选煤厂全重介工艺的特点以及新技术煤泥重介工艺的使用效果,并分析了煤泥重介对浮选工艺、浮选精煤脱水的影响,对解决的办法进行了初步的探讨。