New model of permeability of two-solid constituent shale gas rock

2013 ◽  
pp. 329-334
Author(s):  
M Geilikman ◽  
Sau-Wai Wong ◽  
J Karanikas
Keyword(s):  
Shale Gas ◽  
New Model ◽  
Solid Constituent

scholarly journals A new model for calculating the apparent permeability of shale gas in the real state

2018 ◽  
Vol 5 (3) ◽  
pp. 245-252 ◽  
Author(s):  
Yanyu Zhang ◽  
Dongdong Li ◽  
Xiaofei Sun ◽  
Zhaoyao Song ◽  
Dayou Shi ◽  
...  
Keyword(s):  
Shale Gas ◽  
Apparent Permeability ◽  
New Model ◽  
The Real ◽  
Real State

New Model of Permeability of Tight Shale Gas Rock Based on Open-System Geomechanics

2013 ◽  
Author(s):  
M. B. Geilikman ◽  
J. M. Karanikas ◽  
Sau-Wai Wong
Keyword(s):  
Open System ◽  
Shale Gas ◽  
New Model

New Model for Production Prediction of Shale Gas Wells

2020 ◽  
Vol 34 (12) ◽  
pp. 16486-16492
Author(s):  
Zhiming Hu ◽  
Yalong Li ◽  
Jin Chang ◽  
Xianggang Duan ◽  
Ying Mu ◽  
...  
Keyword(s):  
Shale Gas ◽  
Gas Wells ◽  
New Model ◽  
Production Prediction

A New Model for Predicting Liquid Loading in Shale Gas Horizontal Wells

2021 ◽  
Author(s):  
Chao Zhou ◽  
Zuqing He ◽  
Yashu Chen ◽  
Zhifa Wang ◽  
Amol Mulunjkar ◽  
...  
Keyword(s):  
Flow Rate ◽  
Shale Gas ◽  
Liquid Flow Rate ◽  
Liquid Droplet ◽  
Case Analysis ◽  
Horizontal Wells ◽  
Critical Flow ◽  
Liquid Loading ◽  
Critical Flow Rate ◽  
New Model

Abstract Current critical flow rate models fail to accurately predict the liquid loading statuses of shale gas horizontal wells. Therefore, a new critical flow rate model for the whole wellbore of shale gas horizontal wells is established. The results of the new model are compared to those of current models through the field case analysis. The new model is based on the dynamic analysis and energy analysis of the deformed liquid-droplet, which takes into account the liquid flow rate, the liquid-droplet deformation and the energy loss caused by the change of buildup rate. The major axis of the maximum stable deformed liquid-droplet is determined based on the energy balance relation. Meanwhile, the suitable drag coefficient equation and surface tension equation applied to shale gas horizontal wells are chosen. Finally, the critical flow rate equation is established and the maximum critical flow rate of the whole wellbore is chosen as the criterion for liquid loading prediction. The precision of liquid loading prediction of the new model is compared to those of the four current models, including Belfroid's model, modified Li's model, liquid film model and modified Wang's model. Field parameters of 29 shale gas horizontal wells are used for the comparison, including parameters of 18 unloaded wells, 2 near loaded-up wells and 9 loaded-up wells. Field case analysis shows that the total precision of liquid loading prediction of the new model is 93.1%, which is higher compared to those of the current four models. The new model can accurately predict the liquid loading statuses of loaded-up wells and near loaded-up wells, while the prediction precision for unloaded wells is high enough for the field application, which is 88.9%. The new model can be used to effectively estimate the field liquid loading statuses of shale gas horizontal wells and choose drainage gas recovery technologies, which considers both the complex wellbore structure and the variation of flowback liquid flow rate in shale gas horizontal wells. The results of the new model fill the gap in existing studies and have a guiding significance for liquid loading prediction in shale gas horizontal wells.

A new model for flow in shale-gas reservoirs including natural and hydraulic fractures

2017 ◽  
Vol 21 (5-6) ◽  
pp. 1095-1117 ◽  
Author(s):  
Aline C. Rocha ◽  
Marcio A. Murad ◽  
Tien D. Le
Keyword(s):  
Shale Gas ◽  
Hydraulic Fractures ◽  
Gas Reservoirs ◽  
New Model ◽  
Shale Gas Reservoirs

Outbursts of comet Schwassmann-Wachmann 1, and the cloud of interplanetary boulders

1974 ◽  
Vol 22 ◽  
pp. 307 ◽  
Author(s):  
Zdenek Sekanina
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Interplanetary Space ◽  
Porous Matrix ◽  
Maximum Diameter ◽  
Expansion Velocity ◽  
Solid Constituent ◽  
Meteoric Material ◽  
Periodic Comet

AbstractIt is suggested that the outbursts of Periodic Comet Schwassmann-Wachmann 1 are triggered by impacts of interplanetary boulders on the surface of the comet’s nucleus. The existence of a cloud of such boulders in interplanetary space was predicted by Harwit (1967). We have used the hypothesis to calculate the characteristics of the outbursts – such as their mean rate, optically important dimensions of ejected debris, expansion velocity of the ejecta, maximum diameter of the expanding cloud before it fades out, and the magnitude of the accompanying orbital impulse – and found them reasonably consistent with observations, if the solid constituent of the comet is assumed in the form of a porous matrix of lowstrength meteoric material. A Monte Carlo method was applied to simulate the distributions of impacts, their directions and impact velocities.

The Hitachi Model HS-8 Electron Microscope

1967 ◽  
Vol 25 ◽  
pp. 238-239
Author(s):  
H. Akabori ◽  
K. Nishiwaki ◽  
K. Yoneta
Keyword(s):  
Electron Microscope ◽  
New Model ◽  
Predecessor Model

By improving the predecessor Model HS- 7 electron microscope for the purpose of easier operation, we have recently completed new Model HS-8 electron microscope featuring higher performance and ease of operation.

516: A Simplified Method to Estimate the Absolute Renal Uptake of 99MTC-DMSA: Evaluation with a New Model using the Radioactivity of Nephrectomy Specimens as Reference

2005 ◽  
Vol 173 (4S) ◽  
pp. 140-141
Author(s):  
Mariana Lima ◽  
Celso D. Ramos ◽  
Sérgio Q. Brunetto ◽  
Marcelo Lopes de Lima ◽  
Carla R.M. Sansana ◽  
...  
Keyword(s):  
New Model ◽  
Renal Uptake ◽  
Simplified Method ◽  
The Absolute
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