Tight gas wells are generally characterized by low porosity, low permeability and high water saturation.
致密气井普遍具有低孔，低渗，高含水饱和度的特点。

A Model Solution of Testing Analysis in Fractal Dual Porosity Reservoirs with Constant Pressure Outer Boundary
分形双孔介质外边界定压油气藏的试井分析模型解

The essential characteristics of soil permeability are that the seepage channels are made up of soil porosity.
土的渗透性与其骨架构成的孔隙通道有本质联系。

soil porosity decreased in the surficial soil, especially, in which the large porosity significantly decreased
土壤表层孔隙度减小, 尤其是大孔隙明显减少

Bacterial enzymes are also preferred for the desirable end product qualities of porosity and breaking strength.
细菌性酶也适于生产多孔性及易碎得产品。

There easily exists shrinkage porosity due to superheat of ingate root in large plain parts investment casting.
大平面铸件常在内浇道根部出现过热, 在该处产生缩松缺陷。

Influences of Porosity Error on Electrical Properties of Rock and Updating Formula as Well as Correction Charts
孔隙度误差对岩电参数的影响及校正公式和图版

Shanshan oilfield is a typical anisotropic sandstone reservoir with low permeability, low porosity and pressure.
鄯善油田属于典型的低渗，低孔，低压非均质砂岩油藏。

The Application of Differential Ratio Method of Core Porosity Combination Logging on Identification of Gas Layer
基于岩心孔隙度合成的测井差比方法在气层界别中的应用

Abstract The influnence of irradiation on porosity during preparation of porous silicon is studied in this paper.
文摘研究了多孔硅制备过程中光照对孔隙率大小的影响。

Parameter model of porosity and permeability of Archaeozoic fractured and buried hill reservoir in the Chengbei30
埕北30太古宇裂缝性潜山油藏孔渗参数模型

For direct quantitative measurement of porosity, reliance must be placed on formation samples obtained by coring.
孔隙度直接定量测量的可信度取决于取心所得地层的岩样。

The corrosion resistance of high porosity is very low on the thin bright nickel plating for steel and iron works.
钢铁件上薄层亮镍的高孔隙率必然带来低的抗蚀性。

The Chang6 reservoir belongs to low porosity and excessively low permeability micro throat clastic rock reservoir.
甘谷驿油田长6油层为低孔特低渗透细喉型碎屑岩储层。

Mylonite is thought as the result of mylonite parent rocks brittle crush after it is porosity damaged plastically.
认为糜棱岩是原岩韧性孔洞损伤后脆性破碎得结果。

DIAGENESIS OF SANDSTONE OF SANGONGHE FORMATION OF LOWER JURASSIC AND ITS INFLUENCE ON POROSITY EASTERN ZHUNGAER BASIN
准东下侏罗统三工河组砂岩成岩作用及其对孔隙的影响

Influence of Mating Between Base Metal and Welding Material on Porosity Occurrence in Submerged Arc Weld Pipe Production
埋弧焊管生产中母材与焊接材料相匹配对气孔的影响

PRESSURE COMPARTMENT AND EVOLUTION OF RESERVOIR POROSITY IN THE UPPER PALEOZOIC OF DANIUDI GAS FIELD, ORDOS BASIN, CHINA
大牛地气田上古生界压力封存箱与储层孔隙演化

The influence of different porosity and density on silicon carbide reticulated porous ceramics mechanical properties， etc.
气孔率，密度对碳化硅网眼多孔陶瓷力学性能的影响等。

APPLICATION OF SEISMIC POROSITY INVERSION TECHNIQUES TO SANDSTONE RESERVOIRS IN WESTERN SICHUAN BASIN AND ITS EFFECT COMPARISON
地震孔隙度反演技术在川西砂岩储层中的应用与比较

Preliminary inquiry of weldability and formation reason of porosity for laser beam welding of hydrogen resistant stainless steel
抗氢不锈钢的激光焊接性及气孔成因初探

Application of Logging in the Low Porosity and Low Permeability Reservoirs Prediction in Upper Paleozoic in the Western of Ordos Basin
鄂尔多斯盆地西缘上古生界低孔低渗测井储层预测

There are shrinkage porosity and crack in strip billet, which are the main reasons resulting in rejected castings during mill machining.
带坯的表面裂纹和内部缩松是冷加工报废的主要原因。

Characteristics of the reservoir porosity structures and their controlling factors from the Upper Paleozoic in the northern part of west margin, Ordos Basin
鄂尔多斯盆地西缘北段上古生界储集层研究

The influence of gas permeability, porosity, initial water saturation, drive pressure and interface tension between oil and water on water blocking has been evaluated.
驱替压差和油水界面张力等因素对水锁效应的影响。