... porosity and permeability is important in ensuring long-term CO 2 containment. Caprocks are mainly composed of mudrocks that are characterised by nanometre to micron scale structures (pores and particles). A combination of medical and micro-CT scanning, Scanning Electron Microscopy (SEM), Focused-Ion-Beam...

... by extremely high sulfur. Use of radioactive source measurements such as density and neutron, are prohibited, for the sake of safety, giving rise to uncertainty in the interpretation of lithology and porosity. It is necessary to introduce source-less measurements as substitutions for the formation evaluation...

... converted into water soluble calcium bicarbonate and reduces the pH of the surroundings. Due to dissolution of carbonates in low pH environment over time, cement sheath becomes unreliable with large entry pore sizes, increased porosity, and reduced strength and susceptible of losing structural integrity...

... clastic rock sedimentary rock oil shale geologist complex reservoir artificial intelligence mudstone mudrock shale oil lianggaoshan formation well logging geological subdiscipline saturation annual logging symposium reservoir characterization porosity jurassic lianggaoshan...

... mineral dissolution numerical simulation sustainable development silicate concentration porosity potassium feldspar injection solubility INTRODUCTION In the context of global carbon neutrality, the capture, use and storage of carbon dioxide plays a key role in carbon reduction. Due...

... locations are specified as X and Y coordinates. The production KPIs include the latest average water cut, water cut trend, and long-term decline rate. The petrophysical input features consist of average porosity, permeability thickness (Kh ), average water saturation ( Sw ), net pay thickness...

... structural geology drillstem testing geologist pressure transient testing air emission clastic rock equation of state rock type flow in porous media modeling & simulation well logging reservoir characterization pressure transient analysis history information interpretation porosity...

... common and widely used is the porosity-permeability (poro-perm) relationship. Poro-perm relationship relies on the basis that all pores contribute to fluid flow. However, any heterogeneity, such as presence of isolated pores could cause this poro-perm relationship to fail. Hence, this paper aims...

... vertical wells locations by using the schematic data maps, published material examples and building possible cut offs essential for exploration decision process. shale oil structural geology shale gas upstream oil & gas correlation information lower unit porosity reservoir...

... reservoir properties (such as facie and porosity) to elastic properties (such as P- and S-wave impedances) to build conditional probability. The second step is running pre-stack inversion to derive P- and S-wave impedances as inputs for the third step. The posterior probability of each facie is determined...

... & gas categorical variable porosity feature importance permeability dataset Introduction Core analysis data are acquired over the lives of assets and form a complex inventory of properties. The data inventory includes structured and unstructured data types and formats reflecting...

... Abstract This paper aims to quantify microporosity and access its impact on reservoir quality properties, to identify Hydraulic Flow Units (HFU) using core porosity and permeability data, to predict HFU and accurately estimate permeability in un-cored intervals/wells. Mercury Injection...

..., an accurate method is required to ensure hydrocarbon development is effective and efficient. Challenges in the characterization of the carbonate are related to rock type and porosity. The permeability of rocks cannot be determined only by porosity. The method that can be used to determine rock type and rock...

... Abstract Reservoir heat treatment (RHT) can improve rock seepage capacity. Recently, it has been considered as a potential technology to enhance unconventional oil and gas recovery. This work presents a permeability evolution model to describe the thermal cracking effects of double-porosity...

... on seismic data at different vintages. Existing AVO indicators suggest ambiguous results prone to certain factors such as porosity. Fluid properties such as oil and water of density has similar range of values. Hence, differentiating oil versus water in the porous media has become a problem typically...

... of porosity, water saturation, and permeability. A saturation height function was built from special core analysis (SCAL) to provide an independent saturation estimate for calibrating the petrophysical model. The Thomas-Stieber method, a well-known method for detecting and quantifying laminated sand-shale...

... Here, formation factor (FF) is defined as the ratio of fully-brine saturated rock resistivity ( R o ) to its same brine resistivity ( R w ), which also can be expressed as the reciprocal of the reservoir rock porosity ( φ ) to the power of the cementation exponent ( m ). Variations of above...

... porosity oil saturation water salinity reservoir formation water salinity equation Introduction Z Oilfield is located in the South China Sea, its main reservoir are L1 and L2 which are porous sandstone reservoirs with primary intergranular pores in a delta front deposition. The oilfield has...

... valuable insights into the reservoir and seal elastic properties as function of porosity, fluid and mineral properties, andnet-to-gross. The model canbe used for quantitative seismic interpretation of reservoirs with variable net-to-gross and porosity away from well control. We show that the Hashin...

... transportation disclosed in the laboratory experiment. The simulation showed that the sand production of a specimen increases with three influence factors, including the initial overpressure, the porosity and the sand grain size. Some critical points were discovered and studied in the investigations of each...