1) breakthrough pressure gradient
突破压力梯度
1.
Compared with the conventional temporary bridging methods,the ideal packing temporary bridging drilling fluid could plug the pore throats with different size in the same formation effectively,and the invasion depth of the drilling fluid to reservoir was shallower,could obtain higher coefficient of permeability and lower breakthrough pressure gradient and reduce reservoir damage.
与传统方法相比,该方法设计的钻井液可有效封堵同一储层中不同粒径的孔喉,尤其是较大尺寸的孔喉,对储层岩样的侵入深度较浅,可获得更高的岩心渗透率恢复值及更低的突破压力梯度,降低钻井液污染。
2) fracture pressure gradient
破裂压力梯度
1.
Through the fonnation density logging data in different series of strata, preliminary study on fracture pressure gradient for overriding strata as well as its variation has been carried out, presenting the fracture pressure gradient suitable for injectors in North Saertu development area.
通过不同层系地层密度测井资料,对上覆岩层破裂压力梯度进行了初步研究,分析了上覆岩层破裂压力梯度变化,提出了适合萨北开发区注水井的破裂压力梯度,对今后水驱注水井破裂压力的计算及确定具有一定的指导意义。
2.
The main controlling factors of fractures in the mudstone were quantitatively analyzed,and the fracture pressure gradient of mudstones was calculated using Eaton method.
从泥岩裂缝的形成机制出发,定量分析了济阳坳陷泥岩裂缝的主控因素,并采用Eaton法计算了泥岩的破裂压力梯度。
3) breakthrough pressure
突破压力
1.
Determination of the plugging position of water shutoff agent by breakthrough pressure method.;
用突破压力法确定堵剂在油藏中的封堵位置
2.
Exploration practices in the Jiyang Depression of the Bohai Bay Basin have indicated that,under the same dynamic condition of oil and gas pool forming,resistivity(breakthrough pressure) of entrance and exit interface is different,so fluid enters reservoir and pore respectively.
渤海湾盆地济阳坳陷的勘探实践表明,同一成藏动力条件下,油气充注成藏过程中油气等流体突破储层进/出口界面的抵抗力(突破压力)存在差异,导致选择性地进入储集体和孔隙。
3.
8% after the water of 50 PV is injected;The breakthrough pressure gradient is not lower t.
8%,突破压力梯度一般不低于3。
4) critical pressure gradient of particle burst
破裂临界压力梯度
5) Pressure Gradient
压力梯度
1.
Calculation for pressure gradients of two-phase flow for steam injection in thermal production wells;
热采井注蒸汽过程两相流压力梯度计算方法
2.
A convenient model of pressure gradient calculation of gas-liquid slug flow in vertical wellbore;
垂直井筒气液段塞流压力梯度的简便算法
3.
Predicting pressure gradient of fluid in oil tubing on the condition of continuous gas-lift;
连续气举条件下举液管柱内流体的压力梯度预测
6) pressure gradients
压力梯度
1.
The influence of main flow nonparallel and pressure gradients is considered to show the physical characteristics of flat boundary flow.
为更好反映平板边界层流动的物理特征和本质,该文同时考虑到主流的非平行性和压力梯度的作用。
2.
By using the method of direct numerical simulation, the coherent structures in the wall region of a turbulent boundary layer with either steady or changing pressure gradients were studied.
采用共振三波的一个周期作为湍流边界层近壁区相干结构的初值 ,用直接数值模拟方法对有压力梯度 ,包括定常压力梯度和变压力梯度作用下相干结构的演化进行了研究 ,得出其各种特性的变化与实验观测到的结果一致。
3.
The air pressure gradients of measured points in the shelter are calculated by mathematicsimulation.
介绍了对防空洞的温度、湿度、风速、热舒适度等参量的实测结果并进行定性分析；确定出离洞口较远处的洞内温度随时间变化的规律及地面复盖层的导温系数；进行数学模拟，由欧拉公式确定压力梯度随位置变化的情况；对改善本地人防工程的热湿功能提出初步看法。
补充资料：压力梯度校正因子
分子式：
CAS号：
性质：又称压力校正因子。在气相色谱法中，用以校正在色谱柱中由于载气的可压缩性所产生的压力梯度的因子。
CAS号：
性质：又称压力校正因子。在气相色谱法中，用以校正在色谱柱中由于载气的可压缩性所产生的压力梯度的因子。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条