A5103131066- NMR spectroscopy and applications
- Geophysical and Geoelectrical Methods
- Groundwater flow and contamination studies
- Hydrocarbon exploration and reservoir analysis
- Rock Mechanics and Modeling
- Seismic Imaging and Inversion Techniques
- Enhanced Oil Recovery Techniques
- Legal Studies and Policies
- Gender and Women's Rights
- Marriage and Family Dynamics
- Geoscience and Mining Technology
- Legal and Social Justice Studies
- Seismic Waves and Analysis
- High-pressure geophysics and materials
Soegijapranata Catholic University
2024
Atma Jaya University Yogyakarta
2023
Southwest Petroleum University
2009-2019
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2009-2019
This paper is a follow up on Bernabé et al.'s (2010) study of the effect pore connectivity and size heterogeneity permeability.In permeability model initially proposed, was characterized by means average coordination number z, parameter rarely included in experimental investigations transport properties microstructure porous rocks.Obviously, lack information z makes it difficult to apply model.One way around this problem eliminate from introducing resistivity formation factor, an approach...
Laboratory experiments were conducted to determine the effective pressure law for permeability of tight sandstone rocks from E‐bei gas reservoir, China. The k five core samples was measured while cycling confining p c and fluid f . data analyzed using response‐surface method, a statistical model‐building approach yielding representation in ( , ) space that can be used law, i.e., eff = − κ results show coefficient varies with as well loading or unloading cycles (i.e., hysteresis effect)....
Abstract The permeability k of porous rocks is known to vary with confining pressure p c and pore fluid f . But it is, in principle, possible replace the two‐variable function ( , ) by a eff single variable, ), called effective pressure. Our goal this paper establish an experimental method for determining possibly nonlinear, law (EPL) permeability, i.e., find κ s such that given = − We applied set 26 sandstone cores from various hydrocarbon reservoirs China. found greatly varied, sample...
Abstract The electrical conductivity of brine‐saturated rock is predominantly dependent on the geometry and topology pore space. When a resistive second phase (e.g., air in vadose zone oil/gas hydrocarbon reservoirs) displaces brine, space occupied by electrically conductive are changed. We investigated effect these changes partially saturated with brine. simulated drainage imbibition as invasion bond percolation processes, respectively, pipe networks assumed to be perfectly water‐wet....
In this paper, we modelled the electrical transport behaviour of bimodal carbonate rocks from a reservoir in China using dual-pore networks. One basic assumption, generally supported by experimental data and microstructure observations samples, was that low porosity, monomodal had same properties structure as microporous matrix high samples. We assumed homogeneous always interconnected but connectivity pore size distribution macropore system randomly variable. Both systems were supposed to...
Abstract We modeled single‐phase gas flow through porous media using percolation networks. Gas permeability is different from liquid permeability. The latter only related to the geometry and topology of pore space, while former depends on specific considered varies with pressure. As pressure decreases, four regimes can be distinguished as viscous flow, slip transition free molecular diffusion. Here we use a published conductance model presumably capable predicting rate an arbitrary...
Abstract The effective pressure law for the intrinsic formation factor of low permeability sandstones from Ordos Basin (northwest China) was studied experimentally by measuring electrical resistivity brine saturated rock samples while cycling pore and confining pressures, p c . We used a 100,000 ppm NaCl solution so that results could be directly interpreted in terms F Response Surface method to construct quadratic function fitting experimental data, which coefficient α law, eff = – ,...
Pemberian pembebasan bersyarat terhadap narapidana tindak pidana korupsi merupakan hak setiap narapidana, akan tetapi hal tersebut mencederai amanah rakyat atas penegakan hukum di Indonesia. Penelitian ini bertujuan untuk (1) mengetahui prosedur pelaksanaan pemberian oleh Lembaga Pemasyarakatan Kedungpane Semarang kepada dan (2) hambatan yang ditemui petugas dalam Semarang. Metode penelitian digunakan adalah metode pendekatan kualitatif. Teknik pengumpulan data studi lapangan dengan...
The purpose of this study is to determine and examine the tradition Piti Maranggangu seen from prespective Law Number 1 1974 concerning marriage. research uses normative methods that customary law norms Indonesian marriage using a case approach. data source in secondary form primary legal material Sumba 1974. result shows some issues piti maranggangu perspective Marriage contrary Article 2 validity marriage, Articles 6 7 conditions Because provisions No.1 are mandatory, invalid have no...