... & gas core analysis acid formulation matrix acidizing petroleum engineer radiation ct scan number ultra-sound wave interaction acetic acid acid interaction experiment core plug enhancing matrix acid stimulation procedure penetration Introduction In the following experiment...

... Abstract We measured steady-state liquid (dodecane) permeability in four horizontal core plugs from the middle member of the Bakken Formation at multiple effective stress conditions to investigate how permeability evolves with confining stress and to infer the matrix permeability. Three...

... Four core plugs with a standard size of 1.5 inch diameter are taken from a 12 inch × 12 inch × 12 inch Indiana limestone block. The core plugs are cut within a length range of 8 to 8 1/16 inch in order to fit into the coreholder. The selected core plugs are dried under vacuum for 48 hours...

... Table 2 Oil recovery results in Eagle Ford using n-Pentane at 2000 psi. Pressure ( psi ) Mass ( g ) Volume ( cm 3 ) Initial Volume ( cm 3 ) Recovery (%) Saturation change (%) Core Plug 2000 0.0296 0.0396 0.4063 9.75 5.50 EF_0510 2000 0.1465 0.1953 0.6412 30.46...

... pressure gradient shale gas Upstream Oil & Gas salinity brine chemical osmosis coefficient core plug imbibition matrix equation Oil Recovery Introduction Production from nano-Darcy shale formations has become possible because of the implementation of multistage hydraulic fracturing...

... saturation flow in porous media core flood result Artificial Intelligence Fluid Dynamics saturation microemulsion injection permeability recovery factor microemulsion formulation incremental production producer pilot area core flood core plug lower shaunavon microemulsion taylorton bakken...

... will be described below. The experimental arrangement for each core plug with different fluid systems and operational methods is summarized in Table 2 . Table 1 Fluid properties of selected system Solution Formula IFT, mN/m Wettability Alteration CA before treatment, ° CA after treatment...

... representation of a hydraulic fracture in the laboratory by surrounding an organic-rich shale core plug with 1 mm glass beads inside an aluminum core-holder, as shown in Fig. 1 . This set up is mounted into an aluminum core-holder that enables the penetration of X-rays. With this configuration, we closely...

..., and the effluents are collected. The described procedure constitutes one huff-and-puff injection cycle; the process is repeated for the subsequent huff-and-puff cycles until no more oil is produced and ultimate recovery is achieved. Core plug preparation and re-saturation Abstract In our previous...

... compressive strength core plug relaxation time spectrum core sample tensile strength apparent water content pore size well logging strength compressive strength mineralization slurry permeability indirect tensile strength Introduction All cement core samples were prepared from a single...

... resonance (NMR) are compared with the "true" rock properties determined directly through core analyses at ambient and/or reservoir conditions. 20 core plugs were studied at both fully and partially saturated states. Results indicate that temperature is a major factor affecting the dielectric, NMR...

... Abstract Accurate determination of organic-rich shale permeability is still a major challenge. Various methods have been proposed to measure the permeability on core plugs or crushed samples under various stress conditions using different fluids. Permeability obtained from core plugs...

... complex reservoir shale reservoir saturation society of petroleum engineers gas Permeability Evolution marcellus sample core plug productivity Haynesville sample permeability liquid block odumabo 2014 Introduction Fracturing fluid originally occupying the fracture volume is thought...

...-type equation as: (2) u = − 1 μ K a ⋅ ∇ p Steady- and Unsteady-State Radial and Axial-radial Core Plug Tests The confined core plugs are tested under steady- and unsteady-state pressure conditions involving radial one-dimensional or axial-radial two-dimensional flow...

... fractures on the mechanical properties is analyzed through the testing data. The induced fractures are characterized in several Eagle Ford shale core plugs in terms of orientation, size, and width. Substantial image processing techniques are employed to analyze the three-dimensional (3D) rock...

... to measuring the wave velocities on at least three separate adjacent core plugs with various orientations - one parallel, one perpendicular, and one at 45° to the bedding. However, it is difficult to drill multiple adjacent core plugs with good quality from a whole core of gas shale because of its weakness...

... reservoir core plug Upstream Oil & Gas mechanism chalk matrix block permeability oil recovery injection saturation profile fractured reservoir Introduction Naturally fractured carbonate reservoirs are highly heterogeneous in terms of porosity and permeability ( Chillenger, 1983...

... the results against conventional tracer methods on the same core plugs. The results show a very good agreement between the two methods. One of the advantages of the magnetic tracers is the reduced analysis time of the core and effluent samples. The magnetic tracers can also be used in situations where...

... Jurassic carbonate core plugs from Saudi Arabia. upstream oil & gas pore system nuclear magnetic resonance resolution petrov log analysis effective atomic number information pore size distribution well logging mr-ct microscopy chemical injection core plug brine permeability...

... treatment fracture surface differential pressure enhanced recovery average water saturation saturation fracture outlet core plug matrix block wettability waterflooding inlet core plug oil recovery water saturation core plug reservoir Introduction Oil recovery during waterflooding...