permeability

The fracturing job was one of the effective way to improve hydrocarbon reservoir's permeability and raise oil and gas well's production.

Flux than the average permeability of silver, and the slow flow of superior, stable performance and easy to use.

It is a closed-cell structure with high permeability of vapor, hard but brittle and easy to be damaged with short life.

The casing swabbing is often used in low pressure, low permeability and low production rate oilfields for the most economical production.

Salt rock is considered to be the best media due to its characteristics of good rheological, low porosity, and low permeability etc.

And the air permeability of the flax fabrics is far superior to that of cotton fabric.

The permeability increased in the reservoirs with good physical property, but invalid cycle channel was easy to be formed.

that of river mouth sand bars shows reverse rhythmic distribution, and the peak permeability section is in the top.

So that ferromagnetic dielectric material with its own reflection of light permeability of a relationship.

The results of field application indicate that this technology can restore original reservoir permeability and oil well productivity.

The air permeability back board can be made of plastics or other materials.

The method can be used for measuring the vertical saturation permeability coefficient of the soil outdoors quickly and accurately.

However, when various diseases cause the increase of the permeability of capillaries, albumin may not play such a role or even counteract.

The concept of this self-sealing process broadens the likelihood of cap rocks with low permeability occurring in volcanic areas .

The silicone rubber has been used as the sealing material of fuel cell, but the material has high permeability to hydrogen and oxygen.

The result of contrast shows that the effectiveness division of a reservoir can be done according as the stoneley wave permeability curves.

Paper, linen, leather like, with the pores, easy penetration, to be impregnated using oil, wax or other anti-permeability materials.

through the organic materials and concrete combine into a dense oxidation film, achieve anti-permeability waterproof effect.

The invention relates to a preparation method of a polyvinylidene fluoride (PVDF) ultrafiltration membrane with improved permeability.

Leptospires with different virulence did not cause significant changes in permeability of endothelial monolayers.

Prior to the eighteenth century the human body was predominantly conceptualised in terms of ambiguity, permeability and inherent fluidity.

According to the chart, the early data of the well testing can be used for interpretation of formation permeability.

Pore permeability is usually very high, but the reservoir permeability is not very high.

non? sensitivity to its salinity, water quality, alkalinity etc. and the permeability of the reservoir is not influenced by . . .

When there is an interface, there is a question of permeability of the fluid moving through it.

In low permeability reservoirs, to a great extent, the oil displacement of gas injection production depends on displacement pressure.

Reservoir acidification reconstruction is one of main measures for low permeability carbonate oil-gas reservoir increasing production.

when stating the effective permeability of any particular fluid in a given medium.

If the effective porosity is given, the reflection coefficient of a solitary wave decreases also as the permeability coefficient increases.

More attention was paid to electro-osmosis in recent years just as the method was irrelevant to hydraulic permeability.

Usage : used for bonding high-class clothing materials and permeability film , plastic and polyester film , EVA and PVC.

Soil permeability is one of the important physical properties of soil and important component of the ecological benefits.

Waste - Determination of the permeability coefficient of piece of land by variable load test in an open cased well.

With poor permeability, it should be paid more attention that pumping and injection should have no effect on the permeability coefficient.

Hydraulic fracturing technology is one of economic and effective means to enhance the low permeability reservoir production.

Shutters and blinds - Additional thermal resistance - Allocation of a class of air permeability to a product.

Simultaneous increase in intestinal permeability, intestinal flora imbalance, intestinal bacterial translocation.

This was most likely due to the prolonged post-pulse permeability state of the epidermis.

An evaluation of permeability in varying molecules was a key factor to determine input of nutritive materials and output of metabolic waste.

Permeability is one of the key factors in hydro-mechanical coupling study for underground engineering.

The method can solve the technical problem of pre-extracting the coal bed gas of a coal bed, in particular for a low-permeability coal bed.

The trend henceforth is still high power and permeability and low loss as well as adjustability and optimization of process.

Used for testing the permeability under certain pressure of knitted, woven and nonwoven fabric.

Conclusion The QOL might be have the action of analgesia, anti inflammation and decrease the permeability of capi. . .

The antifungal protein could change the cell membrane permeability, make leaked cell electrolyte out of the pathogen.

The insole has the effect that the surface has wear resistance, slip resistance and good air permeability.

The results show that the starting pressure of low and ultra-low permeability reservoirs can be determined by this experimental method.

General can be planted in garden, but the best way is to use the rich humus, loose hydraulic permeability , and good acidic sandy loam .

"Pressure relief antireflective" technology is to improve the soft low-permeability coal seam gas extraction rate in an effective way.

The vascular permeability, estimated by the quantity of supernatant passing through the endothelial tissue, appeared significantly higher.

High magnetic permeability, low coercivity, anti-corrodent, can be dispose at the atmosphere, high stability.

The flow rate of reservoir crude depends on bottom-hole pressure, reservoir pressure, rock permeability, and the viscosity of the oil.

When a piece of paper, adhesive bonding compression into the paper fiber permeability, and curing reached bond.

The research on the permeability of common water permeable brick can provide reference to its application in engineering in future.

An increase in temperature causes some increase in the permeability up to the curie point , is illustrated in Fig. 17.

In the tight Upper Triassic sandstone with low porosity and permeability, the distributary channel sand body would be the beneficial target.

thirdly, to research the affects by the vertical heterogeneous barrier within the layer, capillary effect of the low permeability.

and the inner surface air-water permeable layer is made of a material with good air permeability and water permeability.

With the more part of the new poly-acrylic acid size to replace PVA in the mixed size, the permeability of the slurry would be better.

The left-handed material (LHM) is an artificial composite material with simultaneously negative permittivity and negative permeability.

The affecting depth is usually acquired according to the change of permeability in floor rock mass.

The faster the rate of salinity decreased, the larger the reduction degree of the permeability was.

Accurate measurement of the permeability, especially the original permeability has a great significance for developing oil & gas field.

The small permeability in heartwood mainly was due to there were large tylosis in the vessels and vestured pit between the vessels.

As the permeability of formation decreases, the difference of formation damage decreases due to different amount of scale.

The permeability test of coal during the whole stress strain process was carried out on MTS815 servo-controlled rock mechanical test system.

Correlation coefficients between the thermal conductivity and bulk density, open porosity, permeability a. . .

Every rock property, e. g. , permeability, compressibility, and acoustic velocities, has its own effective stress coefficient.

The stiff slope area was a place for the better quality reservoir with middle porosity and permeability.

The communication and permeability of reservoir between the wells can be detected by the test.

In addition, the test also assessed the degree of comfort of the sleepwear by means of air permeability and water vapour permeability.

The anti-chloride ion permeability of the high performance concrete (HPC) is better than that of the plain concrete (OPC).

The factors influencing rate of gas osmosis including dynamic gradient, gas saturation and permeability were comprehensively evaluated.

Objective. We hypothesized that the macroscopic permeability of vertebral endplate may decrease with maturity of the vertebral segment.

The increase of vascular permeability is one of the sequence of events in angiogenesis.

An enzyme that inactivates hyaluronic acid in the body, thereby increasing tissue permeability to fluids.

An application experimental study of NMR logging in Tahe ultra-low porosity and low permeability reservoirs in Xinjiang is conducted.

NMR is a technique used to determine the porosity and permeability of rock formations .

That is the one in the history of those anonymous visitors a feeling of a harmonious state of mind, natural beauty of this permeability.

The density has no relation with the permeability which has been improved after amoniaing.

At the same time, the fabric has good elasticity and permeability, soft to can be made of plastic body underwear fashion.

The heterogeneity of the permeability distribute of rock directly influences the distribution, migration and production of hydrocarbons.

Low velocity non Darcy flow of dual media oil gas reservoirs with low permeability often makes well testing analysis more complicated.

In practice, some effective promotion measures can be used to enhance gas extraction for low permeability coal seams.

permeability and viscoelasticity of polymer solution to the shape and characteristic of the relative permeability curve in polymer flooding.

The results indicate that the isolation effectiveness for plane S waves will become better with the decrease of the soil permeability.

Aerospace series. Textiles for parachutes. Determination of the air permeability of wing fabrics.

The reservoirs are low porosity, low permeability, and fracture-porosity sandstone reservoirs, which are main gas reservoirs of this area.

It is quite ripe to rock routine permeability and the research correlating with it is quite deepened too.

Finally, the permeability transforms were integrated into a 3-D geologic modeling using SGS and cloud transform.

It is usually directly to test seepage quantity in the laboratory, which is difficult to accurately measure for low permeability rocks.

The model is of great significance to the analysis of the stress effect on the permeability of rock mass.

there is no marked influence of the rainfall intensity on variation of matric suction of slope with high saturated permeability coefficient.

this fabric has good elasticity, permeability and comfortable hand feeling, and there will be a good market for this fabric.

It is feasible to determine permeability of ordinary concrete by measuring electric conduction of the concrete by alternating current.

Injection test with double-packer can measure permeability coefficient of hydraulically conductive intervals intersecting boreholes.

In the meantime repeated conventional wireline measurements can be performed to assess the completion permeability.

The invention relates to a new technology that could make hyaluronic acid by altering the cell permeability using microorganism metaboly.

The light-emitting particles and products thereof have excellent water permeability, abrasion resistance and light-emitting performance.

It can be used as an assistant index of coal seam outburst risk assessment, and also can be used in gas permeability study of coal seam.

Due to poor permeability of the tight sandstone reservoir, oil and gas productive capacity depends much on fracture development.

As the soft coal seam is high gas content and low permeability. it has been difficult and key for the coal seam gas extraction.

Salinity-sensitivity evaluation in ultra-low permeability sandstone reservoir and its application.

The reserve is of strong heterogeneity, and the reservoir property is medium pore, medium-low permeability or low-resistivity gas reservoir.

It was indicated that the covering with low diffusion coefficient, small porosity and bad permeability was suitable to cover the pile.

EXTERIOR BUILDING PAINTS. CONVENTIONAL DETERMINATION OF THE WATER PERMEABILITY OF MICROPOROUS CLADDING PAINTS.

After testing, thermal aging volatility plastic viscosity, slows the permeability of the book, affecting the bond strength.

pure water too "pure" state of the low permeability of water will soon enter the cell, the dilution blood is not ideal.

Gas injection has been successfully used to enhance oil recovery in low permeability reservoir at home and abroad.

the permeability increased exponentially as the pore pressure increased under different temperatures.

The terminology and the physical sense of percolation and permeability were analyzed.

This study shows that the main remaining potential after polymer flooding lies in thick layers with intermediate permeability.

As the amount of scale increase, the difference of formation damage decreases in formations with different permeability.

To improve hydration and maintain favorable moisture retention, oxygen permeability and its energids .

While for bedding rockfill which has moderate or even low permeability vacuum saturation can be used to save much time.

Granular filter media. Test methods. Measurement of the permeability of a filter aid.

But some horizontal wells does not gain the perfect productivity, due to low permeability or some other reasons.

Curtain walling - Air permeability - Performance requirements and classification.

With oil and gas exploration in depth, in recent years, the majority of our newly discovered oil reservoirs are low-permeability reservoirs.

The absolute permeability has only a weak effect on them. The advancing velocity of combustion front is proportional to air injection rate.

air permeability of natural fiber fabrics and protein fiber fabrics was better than that of synthetic fabrics.

Open kitchen fumes from blocking the best way is to install glass walls , both permeability smoke , hears no kitchen noise .

A yellow brittle small pieces of paper, an old photograph, a permeability of the veins bookmarks, the changes in time, to become debris.

However, the decrease of permeability was comparatively slow and the permeability decreased by 50% in the case of gradual salinity decrease.

This paper presents a method of calculating relative permeability in an oil reservoir with the help of production data-water cut.

PU membranes modified with SF have good flexibility as well as their hydrophilicity was improved, and certain water vapor permeability.

permeability is one of the important performances of sand mold.

Effective permeability is introduced here to describe the simultaneous flow of more than one fluid.

However, In the established by the current low-permeability reservoir well testing models, more is to consider the single factor.

Both the two plates of thrust are the thick sandstone with high permeability, and these thrust block traps can accumulated heavy oil.

Further, the restraint sleeve is fine in air permeability and is favorable for dissipating heat of the forearms.

The permeability and apparent resistivity of the rock are also dependent on its physical structure and property.

at the mid-late production period, the contribution rate of the layer with low-permeability increases.

The Increasing Weight Rate of Copper & Nickel films on PET affects its gas permeability and electromagnetic shielding function.

The results indicate that throat type in an extra-ultra low permeability sandstone reservoir is versatile and minute.

The consequent structural integrity of the mounds and their excellent permeability to water has protected them from erosion by flood waters.

fractured gas reservoir with low permeability; gas-water biphase; nonlinear flow; threshold pressure gradient; numerical simulation.

The long-term control was realized by adjusting bed high according to status of pre-ignition permeability and vertical sintering speed.

Hydraulic fracturing is an important stimulation technique for low permeability reservoir.

Dynamic evaluation included the effects of temperature, concentration, nitrogen-liquid ratio and permeability on foaming sealing ability.

With larger permeability coefficient, the heat transfer to boundary required shorter time, and the temperature of the fault zone is smaller.

Both MDA content and membrane relative permeability had an ascending trend with the increasing stress.

Extensive laboratory testing showed that associative polymers had no significant effect on the relative permeability to oil.

SMC can reduce more loss in the High-frequency area but it cannot make up the disadvantage of bad permeability.

The samples with slag make a contribution to the denseness of microstructure and reduce the chloride electrical permeability.

It was observed that our approach correctly captured the porosity-permeability scatter in the geologic model for various facies groups.

The discontinuous change in free volume will involve an abrupt change of the permeability of the breathable material layer.

High pressure air injection for light oil reservoirs can applied to both low permeability oil reservoir and flooded oil reservoirs.

Fracture can be important reserving space and the main contributor to permeability in reservoirs.

The space degree and permeability of two groups of rock specimens are both raised with temperature and decreased with pressure.

The saturation's, IF known, should be specIFied to define completely the conditions at which a given effective permeability exists.

The main properties required are impact resistance , chemical resistance to fuel and low hydrocarbon permeability .

Through the laboratory test, with strength, permeability and resistance to characterize the hydrolysis of materials.

The relations between the initial poing of double hump distribution of intrusive and the permeability is belong to mechanics property.

The tectonic fractures formed latterly improve the formation's permeability and fluidity, and determine reservoir production capability.

The relationship between permeability and the threshold pressure gradient is studied by the threshold pressure gradient experiment.

An experimental model was developed, on the analysis of the permeability chorogram of this layer.

Major evaluation elements include skin factor, reservoir permeability, thickness, and current formation pressure.

Special good softness, air permeability, moisture permeability, completely eliminates the other animal down sultry, stiff defects.

The experimental results showed the air and water vapor permeability of polyurethane membranes are improved.

In the case of higher permeability, pressure of nitrogen drive and carbon dioxide drive is almost equal.

Jokul enzyme, containing tannin and flavonoid compound, can reduce capillary vessel permeability and provide obvious abirritation.

The technology has been applied to the low permeability areas of Liubei Oilfield, which achieves good intensified injection results.

Structure coefficients, sorting coefficients and radius average value increase with the increase of permeability and porosity.

Absolute permeability is the measurement of the permeability conducted when a single fluid, or phase, is present in the rock.

Experiments of enhancing injection capacity in low - permeability sandstone reservoir are conducted by nanometer technology.

It is easier to form coal and gas outburst in fractured coal due to its low permeability and high gas flowing resistance.

A homogeneous anion exchange membrane with selective permeability was been applied to gold electrolysis.

The electrical resistance and permeability is an importance evaluation index on the durability of concrete.

The results show that the effective porosity and permeability are improved due to hydrates decomposition.

The starting pressure of volcanic gas reservoir shows exponential relationship with irreducible water saturation and air permeability.

Product description: new production process, MAO excellent hygroscopic and permeability, feel is exquisite soft, more personal nature.

Do not use transparency, low permeability of ink for polyester shirt.

Therefore, large pore path in sandstone reservoir will have significant effect on reservoir permeability and injection-production process.

These reservoirs are characterized by: low permeability, reservoir fracture developed, low-yield wells, low economic efficiency.

In connection with specific geological conditions and study object, we need choose appropriate method to measure permeability coefficient.

The magnitude of the error is a complex function of the thickness, ledge width, mouth area, and possibly the permeability.

The relationship among cold resistance of apricot, membrane permeability, soluble sugar contents and lipid peroxidation was explored.

Magnetic inductivity: Magnetic permeability; the three-dimensional inductance of a material.

Then, the grade division standard of high performance concrete permeability is assured through surface permeation coefficient.

This requires a one-sided adhesive should be low viscosity and high gel casting so that glue in a very short time permeability and sealed.

Thermal performance of buildings - Air permeability of building components and building elements - Laboratory test method.

With the increase of soaking time, the water vapor permeability first increases, then decreases.

Fractures themselves typically do not have much volume, but by joining preexisting pores, they enhance permeability significantly.

Analysis of actual examples indicates that the model is appropriate to describe the relations among permeability, stress and strain.

Thermal performance of buildings - Determination of air permeability of buildings - Fan pressurization method.

However, with overall growth of physical property, the discrepancy of the parameter for porosity and permeability was raised.

To choice wells for fracturing, the wells with greater effective permeability and effective thickness should be targeted.

Cracks in the matrix fundamentally alter the permeability of the material, and therefore directly affect the drying behaviour.

By observed the influence on vessel permeability and tampon granuloma, the effect on anti-inflammation had been observed.

The research has theory direction for the reasonable development of low permeability bottom water and unsaturated reservoir.

The Upper Jurassic-Lower cretaceous reservoir in Minhe Basin is commonly of low porosity and low permeability or extremely low permeability.

Results Xiaozhengtie plaster had the effects of inhibiting rats ankle swelling, alleviating twisting and reducing permeability of capillary.

Permeability is one of the most important parameters for the measurement of the flowing capability of the oil and gas.

Influence of granularity distribution of quartz refractory aggregate on permeability and viscosity of EPC coating was investigated.

The stress relief annealing is helpful to improve the permeability, increasing annealing temperature can increase the permeability.

To determine the wettability, wicking or horizontal water permeability of woven, knitted or non-woven fabrics.

Injecting water always flow along the high permeability parts to oil wells, which made water flooding efficiency low.

By studying the percolation mechanism of super-low permeability reservoir, the paper analyses its law-non Darcy percolation characteristics.

Ordovician in Tahe oilfield belongs to carbonate reservoir, fracture and corrosion cavern are acting on oilfield reservoir and permeability.

The treatments include controlling primary disease, liquid treatment, and improve the capillary permeability.

Pingbei Area Ansai Oilfield has geological specialties of the low-permeability and low-production, and the complex ground conditions.

With the asphaltene precipitation, the rock permeability reduces correspondingly.

If the intensity of the magnetic field is known, the permeability of vacuum can be measured.

The results show that the permeability is closely related with the confined stress, hydraulic pressure and matrix suction.

The ion transference number and the selective permeability have been estimate by testing membrane potential method.

The essential characteristics of soil permeability are that the seepage channels are made up of soil porosity.

The analysis shows that the polymer flooding is dominant to improve the sweep efficiency of reservoirs with low and middle Permeability.

Using drainage ability strong permeability foam concrete can be as light, the gravel based on in or artificial turf, as a playground use.

On the basis of the mathematical model, well test design theory of low permeability gas reservoirs is studied.

Hydraulic technology was vast applied in low permeability oil-gas field exploiting and development, and gained extremely economic benefit.

The permeability properties of pulp are not the same in different pulp treatment process or equipment.

Abnormal negative separations of micro - electrode log curves are very common in the low permeability reservoir.

The strand shallow lake-bar sandstone had the characteristics of thin reservoir, low porosity and low permeability.

Compressive strength, permeability of the concrete to chloride ions and permeability of gases in the concrete are examined.

The method further includes comparing the filter permeability values to predetermined filter permeability values.

Unsaturated seepage experiments in low permeability rock present more obvious non-linear seepage characteristics.

Hydraulic fracturing has become a common and quite effective well stimulation technology to explore and develop low permeability reservoirs.

During this period, invasion depends on formation permeability, among other factors.

Parameters of moveable fluid become lager as permeability increases, and their relation gets better as permeability increases.

Filler adopts imported superfine fibber, mild, permeability is strong, especially suitable for office, travel and household use.

Performance and advantages: green, good air permeability, tensile, and not deformed by the wet water, a variety of colors, thickness.

The calculation of the effective permeability in a meta-material were studied in this article.

The results show that the oil production increases with the increase of water volume, reservoir thickness and horizontal permeability.

The equivalent permeability tensor of rock mass, which has single set of fractures, is deduced.

Overgrowth quartz, chlorite and Illite obviously reduce the permeability and porosity of the reservoir.

Such air entrapment has significant influences on the soil-water characteristics and the permeability of the porous media.

Local hyperthermia can increase the tumor vessel wall permeability to nano liposome, resulting in improved drug delivery efficiency.

The injecting water flow laws of the extremely low permeability reservoirs with and without fractures are described in the paper.

The damage of formation water and formation water contained anti-swelling agent to core permeability was tested.

Essential way of solving the gas drainage problem of low permeability coal seam is to increase coal seam permeability.

The research shows that there is an optimum occasion for advanced water injection and it decreases as the increase of permeability.

Initial gas oil ratio, formation permeability, pressure drop rate are all sensitive to well deliverability except shape factor.

In Darcy flow , dispersion decreases as the permeability coefficient increases.

The bio contact oxidation technology is suitable for the treatment of oily wastewater from Bonan low permeability oilfield.

Ground stress gradient in well test has correlation with permeability and reservoir pressure, but it disperses widely.

Comprehensively, it is feasible to predict water block damages of low-permeability sandstone reservoirs by the grey correlation method.

Existing theories of percolation and permeability were analytically compared with respect to their applicability and effectiveness.

In each case, the matrix acidizing treatment improves the formation permeability to enable enhanced production of reservoir fluids.

Upper Paleozoic natural gas reservoir of Ordos Basin consists of low-permeability sandstone which bears typical secondary porosity.

The difference between loess and paleosol in permeability and water bearing space is attributed to climatic difference and pedogenesis.

The research shows the heterogeneity is intense. The variety of pores and throats are main reasons that the permeability is low.

They also can be used to constrain the variety of plane permeability during petrophysical modeling.

Equation between inter-yam air permeability and parameters of fabric structure was deduced based on Hagen-Poiseuille law of hydromechanics .

The sandstone reservoir of this area is characterized by medium porosity and low permeability.

industrial , commercial and garage doors and gates - air permeability - classification.

Objective To investigate the effect of ambroxol on the permeability of ciprofloxacin across the bacterial biofilm of Pseudomonas aeruginosa.

The yellow discoloration of the partition is prevented to improve color brightness and light permeability.

Heterogeneity is strong, vertical permeability showed positive rhythm and rhythm is a combination of complex features.

Many factors have influence on permeability of cohesionless coarse-grained soil, in which void ratio is the major one.