Evolution law of mining coal permeability by real-time tracer monitoring system;

A new method for calculating sandstone permeability by using capillary pressure curves.;

Influence of permeability on single well controlling reserves in low permeability gas reservoirs;

The results showed that the seam penetration rate of the additional electric magnetic field could meet the liner relationship with the variation of the frequency and electric voltage(electric field strength).

Using computational fluid dynamics(CFD) to simulate the flow field distribution within the dust collector,the effect of the filtration velocity and penetration rate to the stability of the airstream have been studied with selecting four conditions and the model had been simulated.

This article introduces in the detail methods of determining the remaining oil saturation,the reservoir pressure,the penetration rate and the skin factor of rock on well-points by using production logging data,and the application example proves that the methods is workable,and the evaluating result is basically consistent with the real production.

Theoretical study and CFD prediction of infiltration rate through a cold store entrance under thermal pressure;

Measuring and Controlling System of Geotextile Infiltration Rate Base On RS-485 Bus;

Based on experiments, this paperputs forward a new method of using infiltration rate of particle coal for determining gaspermeability of coal seams.

Synthesis of High Permeances of ZSM-5 Zeolite Membranes;

A high permeance of H 2 up to 11 3×10 -6 mol/m 2·s·Pa of synthesized membrane was achieved by synthesis on a pre wetted tube support.

Permeance of both gases slightly decreases when permeation temperature increases.

Experimental of coal s strain-permeability rate under solid and liquid coupling condition;

In block A in Erlian oilfield the interpretation result indicates that some reservoirs with low porosity and low permeability have poor oil & gas reserve,but have high production capability after being fractured.

Considering the characteristics of low porosity and low permeability in the depression, effective evaluation methods for shale volume, porosity, medium diameter of particle, oil saturation and permeability are presented using Artificial Neural Network technique combined with con.

Based on coal seam gas industry that features low permeability in coal reserve bed in China,it is discussed the feasibility of an operational technology,well drilling,will be done by drilling holes parallel to the level of coal bed outside of the bed or projecting holes in multilayer for large slope pits with low polution for coal reserve bed.