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Wettability Alteration in a Tight Oil Reservoir
Energy & Fuels, 2013In fractured reservoirs, the efficiency of water flood is governed by spontaneous imbibition of water into oil-containing matrix blocks. When the matrix is oil-wet or mixed-wet, little oil can be recovered by imbibition. The objective of this work is to identify chemicals that can be added to the injection water that can induce imbibition into an ...
P. Kathel, K. K. Mohanty
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Multimodal reservoir porosity simulation: An application to a tight oil reservoir
Journal of Applied Geophysics, 2014Abstract At appraisal stage of a reservoir characterization, a key step is the inference of the reservoir static properties, such as porosity. In this study, we present a new nested workflow that optimally integrates 3D acoustic impedance and geophysical log data for the estimation of the spatial distribution of reservoir porosity, which is applied ...
Mathieu Sauvageau +4 more
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Enhanced Oil Mechanism of WAG in Tight Reservoir
2021Tight reservoir needs new gas injection methods to delay gas channeling for the development of fractures, which result in early gas channeling in continuous gas injection. In this paper, the feasibility of CO2 flooding in tight reservoir core is analyzed, and the mechanism of water alternating CO2 for tight reservoir with fracture development is ...
Juan Zhang +4 more
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Micro/Nanopore Systems in Lacustrine Tight Oil Reservoirs, China
Journal of Nanoscience and Nanotechnology, 2021A nanoscale pore throat system develops extensively in rocks of unconventional reservoirs serving as both source and reservoir rock. The nanoscale pores provide the main storage spaces, accounting for 70% to 80% of the total unconventional tight reservoirs in China.
Qiyan, Li +4 more
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Tight Gas and Oil Reservoirs in Kuwait - An Overview
EAGE workshop on Developments in Land Seismic Acquisition for Exploration, 2010Tight reservoirs of Kuwait of different ages have been discussed.Four major tight reservoirs are Triassic Lower Jilh, Jurassic Najmah-Sargelu and Cretaceous Makhul and Minagish reservoirs. These reservoirs are prospective in areas of natural fracture development. Major challenges and way forward for exploration of these targets have been elaborated.
N. Mohammed Al-Ammar +5 more
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The surface wettability of brine in a tight oil reservoir
Petroleum Science and Technology, 2018ABSTRACTBased on DSA100 instrumentation, the interactions between the chemical groups on the rock surface and brine were analyzed to study the abilities and microscopic mechanisms on reservoir char...
Zhengfu Ning
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Multiphase Linear Flow in Tight Oil Reservoirs
SPE Reservoir Evaluation & Engineering, 2016Summary The main objective of this work is to gain a general understanding of the performance of tight oil reservoirs during transient linear two-phase flow producing at constant flowing pressure. To achieve this, we provide a theoretical basis to explain the effect of different parameters on the behavior of solution-gas-drive ...
S. Hamed Tabatabaie +1 more
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Effect of spontaneous emulsification on oil recovery in tight oil-wet reservoirs
Fuel, 2020Abstract Surfactants improve oil recovery from tight oil-wet formations through wettability alteration and interfacial tension (IFT) reduction. The popular perspective believes that wettability alteration induced capillary-driven spontaneous imbibition is the major mechanism of Enhanced Oil Recovery (EOR) in tight oil reservoirs.
Junrong Liu, James J. Sheng, Jiawei Tu
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Research on the Moveable Oil in Tight Oil Reservoir with NMR and Centrifugal Experiment
Applied Mechanics and Materials, 2014In order to quantitatively analyze the contents and distribution of the moveable oil in tight oil reservoir, this research has done experiment on 12 representative cores. The total moveable oil saturation is between 5.17% and 43.30%. And the big throat controls less contents of moveable oil than the small one, throat radius between 0.02μm~0.1μm plays ...
He Kun Guo +3 more
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Development Characteristics of Tight Oil and Gas Reservoirs
2020Considering the widespread reserves all over the world, tight oil and gas reservoirs have a huge potential. Currently, the development mode of horizontal well and hydraulic fracturing has obtained significant advances. However, the effective development of tight oil and gas reservoirs still face a big challenge due to the low productivity, quick ...
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