Laboratory Measurements of Condensate Blocking and Treatment for Both Low and High Permeability Rocks

Plumbing accretionary prisms: effects of permeability variations

Philosophical Transactions of the Royal Society of London Series A Physical and Engineering Sciences ◽

10.1098/rsta.1991.0047 ◽

1991 ◽

Vol 335 (1638) ◽

pp. 275-288 ◽

Cited By ~ 34

Keyword(s):

Fluid Flow ◽

Pore Pressure ◽

Active Faults ◽

Accretionary Prism ◽

Fault Zones ◽

Laboratory Measurements ◽

High Permeability ◽

Fracture Permeability ◽

Deformation Regime ◽

Accretionary Prisms

Fault zones focus fluid expulsion in the muddy northern Barbados Ridge accretionary prism with fault-parallel permeabilities about 1000 times greater than intergranular permeabilities in the adjacent sediment. In the Oregon prism the low bedding-perpendicular permeability (due to mudstones) inhibits intergranular dewatering; however, intergranular flow is concentrated where submarine erosion breaches high permeability sandy layers. Even so, faults can capture fluid flow from these exposed sandy layers suggesting the faults have a still higher permeability. Such observations coupled with laboratory measurements permeabilities suggest that faults off Oregon may have fault-parallel permeabilities at least 10-10000 times greater than the adjacent sediments. Results from Barbados and Oregon suggest fluid flow is concentrated along the most active faults. At the toe of prisms the fault zones are being progressively loaded by the thickening wedge and are undergoing compaction. Preliminary experiments show that permeability decreases relative to the surrounding wall rocks along faults within this compactive deformation regime; we believe that these faults must undergo dilation, perhaps linked to transient increases in pore pressure if they are to be preferential fluid conduits. Farther upslope erosion exposes rocks that are more consolidated, commonly more cemented, and generally of lower intergranular permeability than rocks of equivalent burial further seaward. Because of their lithification and overconsolidation these rocks dilate during faulting, locally enhancing fracture permeability. In such dilative regimes, faults become evermore focused zones of fluid expulsion relative to occluded intergranular pathways.

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Laboratory measurements of the drag force on a family of two-dimensional ice keel models in a two-layer flow

International Journal of Multiphase Flow ◽

10.1016/s0301-9322(97)88458-3 ◽

1996 ◽

Vol 22 ◽

pp. 133

Author(s):

H Pite

Keyword(s):

Drag Force ◽

Two Dimensional ◽

Laboratory Measurements ◽

Layer Flow

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VIBRATIONALLY EXCITED c-C3H2 RE-VISITED: NEW LABORATORY MEASUREMENTS AND THEORETICAL CALCULATIONS

Proceedings of the 72nd International Symposium on Molecular Spectroscopy ◽

10.15278/isms.2017.wf08 ◽

2017 ◽

Author(s):

Harshal Gupta ◽

Michael McCarthy ◽

Carl Gottlieb ◽

Olivier Pirali ◽

Marie-Aline Martin-Drumel ◽

...

Keyword(s):

Theoretical Calculations ◽

Laboratory Measurements ◽

Vibrationally Excited

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Effective Loading Method of High- permeability Magnetic Sheet for NFC/WPT Hybrid Antenna

IEEJ Transactions on Electronics Information and Systems ◽

10.1541/ieejeiss.137.826 ◽

2017 ◽

Vol 137 (6) ◽

pp. 826-833

Author(s):

Takaho Sekiguchi ◽

Hiromu Odanaka ◽

Yoshinobu Okano ◽

Satoshi Ogino

Keyword(s):

High Permeability ◽

Loading Method

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Development of High Permeability Core Materials for Embeddable Inductors in Flexible Organic Substrates

MRS Proceedings ◽

10.1557/proc-769-h10.10 ◽

2003 ◽

Vol 769 ◽

Author(s):

C. K. Liu ◽

P. L. Cheng ◽

S. Y. Y. Leung ◽

T. W. Law ◽

D. C. C. Lam

Keyword(s):

Low Temperature ◽

Sol Gel ◽

Circuit Board ◽

Organic Substrates ◽

Circuit Boards ◽

High Permeability ◽

Electrical Measurements ◽

Different Temperatures ◽

Spiral Inductors ◽

Ceramic Tape

AbstractCapacitors, resistors and inductors are surface mounted components on circuit boards, which occupy up to 70% of the circuit board area. For selected applications, these passives are packaged inside green ceramic tape substrates and sintered at temperatures over 700°C in a co-fired process. These high temperature processes are incompatible with organic substrates, and low temperature processes are needed if passives are to be embedded into organic substrates. A new high permeability dual-phase Nickel Zinc Ferrite (DP NZF) core fabricated using a low temperature sol-gel route was developed for use in embedded inductors in organic substrates. Crystalline NZF powder was added to the sol-gel precursor of NZF. The solution was deposited onto the substrates as thin films and heat-treated at different temperatures. The changes in the microstructures were characterized using XRD and SEM. Results showed that addition of NZF powder induced low temperature transformation of the sol-gel NZF phase to high permeability phase at 250°C, which is approximately 350°C lower than transformation temperature for pure NZF sol gel films. Electrical measurements of DP NZF cored two-layered spiral inductors indicated that the inductance increased by three times compared to inductors without the DP NZF cores. From microstructural observations, the increase is correlated with the changes in microstructural connectivity of the powder phase.

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