Experiments are conducted on the damage mechanism of fracturing fluids by using the real sandstone model to identify the reservoir damage factors caused by fracturing fluids,to optimize fracturing fluid system,and reduce or even eliminate the damage with the most effective method.
为了搞清压裂液引起低渗储层伤害的主要因素,优化压裂液体系,以最有效手段减小或消除这些伤害,采用真实砂岩模型进行了压裂液伤害机理的实验,并对照储层地质特征、流体性质和储层敏感性分析,对压裂液伤害储层的微观机理进行了分析研究。
Through linear sandpack model and transparent micromodel experiment,this paper studies migration rules of weak gel in porous media and general characteristics of EOR.
通过线性填砂模型和透明微观模型实验,研究了弱凝胶在多孔介质中的运移规律和提高采收率的一般特性。
The relationships of fluvial microfacies with sandbody size, petrophysics and oil reservesin place: a case of a development block in an onshore oilfield around Bohai Bay;
河流相油田沉积微相与砂体规模、储层物性及地质储量的关系——以渤海周边陆区某油田一开发区块为例
In view of existing question of contradiction between computing formula for current radius of investigation and hypothesis, influence range and sandbody size can not be obtained correctly during the production.
目前已有的探测半径计算公式与假设条件相矛盾,无法准确研究生产过程中油井的影响范围及砂体规模大小。
The less felting liquid can be used than other sand when using NFS .
粘结剂使用量较其他粒形铸模砂少。
forming machine for making foundry moulds of sand (excl. sand-jet sprayers)
铸造用砂模成形机（不包括喷砂装置）
A frame for holding a sand mold in a foundry.
砂箱铸造车间内保持砂模用的框架
Large scale sand production experiments and optimization of sand control for unconsolidated sanstone reservoir
大型疏松砂岩油藏出砂产能模拟试验及防砂方式优选
Influence of Sand Compacting-Pulling Force on Sand Molding on EPC
消失模铸造干砂紧实-拔出力对干砂造型的影响
Experimental and Numerical Simulation Research of Screen out Fracturing in Unconsolidated Sandstone
疏松砂岩脱砂压裂实验与数值模拟研究
An Improved Particle System and OpenGL Sand Spraying Simulation Used in Sand and Dust Wind Tunnels
砂尘风洞试验中粒子系统的OpenGL喷砂模拟
Figure 5. Shear and bulk modulus relation for sandstone and weakly cemented sands.
图5.砂岩和弱胶结砂体中剪切模量和体变模量之间的关系。
They proceeded at once to extract the interior mould, clearing out the boring of the piece.
他们立时动手掘砂模，掏清炮筒。
Experimental Study on Compaction Properties of Dry Sand in Expendable Pattern Casting
消失模铸造干砂紧实特性的试验研究
Study on the Twin Metals Hammer by EPC Process
干砂消失模铸造复合锤头的试验研究
Constitutive Model of Calcareous Sand Structure Interface
钙质砂与结构接触面的本构模型研究
EXPERIMENTAL STUDY ON PARAMETERS OF DUNCAN-CHANG MODEL FOR BEIJING FINE SANDY SOIL
北京细砂土邓肯-张模型参数试验研究
Practice of Dry Sand Filling and Compaction by Vibration in EPC
消失模铸造干砂振动紧实的生产实践
A Study of Modeling Experiments of the New High Effective Rotational Flow Grit Chamber;
新型高效旋流沉砂池的模型试验研究
INVESTIGATION ON THE MOLD FILLING CHARACTERISTICS OF GRAY IRON IN THE EPC PROCESS WITH UNBONDED SAND MOLDS;
灰铸铁干砂消失模铸造充型特性研究
Research of Laboratory Tests and PFC～(3D) Numerical Simulation for the Steady State of Sand;
砂土稳态强度试验研究及颗粒流模拟
Numerical Modeling of the Elastoplastic－Damage Constitutive Relations for Sand;
砂土弹塑性—损伤本构关系的数值建模