Mechanical Performance and Durability Evaluation of ...

2019-7-1 · The reservoir lithology is middle-fine lithic sandstone, quartz sandstone, and siltstone. It is mainly a lacustrine-delta depositional system and the reservoir thickness is 270–700 m (Fig. 1c). The pore space consists of residual inter-granular pore, inter-granular dissolved pore, intra-granular dissolved pore and fractures (Duan et al., 2013 ...

Tainted Stones: Sandstone produced by bonded labor and ...

2020-12-21 · Last month, the Department of Labor added Indian sandstone to its watchlist of products potentially derived from child labor, partly as a result of reporting by the American Bar Association Center for Human Rights. The Center''s latest report, Tainted Stones: Bonded Labor and Child Labor in the India-U.S. Sandstone …

Oceans Chapter 4 Flashcards | Quizlet

Start studying Oceans Chapter 4. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

Relaxation Mechanisms and Shales

Relaxation Mechanisms and Shales KATHRYN E. WASHBURN1,2 1Weatherford Laboratories, Houston TX 2Ingrain, Houston TX ABSTRACT: Unconventional petroleum resources present in shales have recently seen increased development due to growing demand for energy worldwide, declining conven-tional petroleum discoveries, and improved technology for production.

Characteristics, formation periods and genetic mechanisms ...

2019-7-1 · The reservoir lithology is middle-fine lithic sandstone, quartz sandstone, and siltstone. It is mainly a lacustrine-delta depositional system and the reservoir thickness is 270–700 m (Fig. 1c). The pore space consists of residual inter-granular pore, inter-granular dissolved pore, intra-granular dissolved pore and fractures (Duan et al., 2013 ...

Effect of High Temperature (600°C) on Mechanical ...

2020-8-12 · Rock destruction under high-temperature conditions is a key issue for nuclear waste treatment projects, underground coal gasification, and improvement of the use of geothermal energy for heating. Therefore, in this study, various methods and techniques were integrated to study the changes in mechanical properties, mineral composition, and microscopic fracture characteristics of Sichuan ...

Sandstone matrix acidizing knowledge and future ...

2017-2-2 · Acidizing mechanism. HF acid starts dissolution of minerals as soon as it enters a sandstone formation. The speed of reaction and dissolution of minerals depends on their reaction rate with acid and the exposed surface areas. The sandstone minerals are …

Progress in Exploration, Development and Utilization of ...

2021-8-15 · Geothermal resources are a type of clean and renewable energy that has great industrial potential and prospects. It shows great value in protecting and improving the natural and ecological environment. At present, geothermal energy has been widely used in many countries. Its exploration and development have made great progress in methods and technologies.

Characteristics and accumulation mechanism of tight ...

The diffusion of gas from source rocks to reservoirs is a significant mechanism of tight sandstone gas accumulation. Discover the world''s research 20+ million members

Association of large sandstone uranium deposits with ...

Association of large sandstone uranium deposits with hydrocarbons. Subhash Jaireth, Aden McKay and Ian Lambert. The geology of uranium deposits in Kazakhstan points to similar deposits in Australia. Sandstone uranium deposits account for approximately …

Evaluation of permeability damage caused by drilling and ...

2019-4-1 · Tight sandstone reservoirs with low porosity and permeability are always vulnerable to damage due to drilling and fracturing fluids, which significantly impedes hydrocarbon production. Therefore, exploring damage evaluation methods has been an undeniable demand of formation protection and efficient development.

Production of Greener High-Strength Concrete Using …

2020-12-8 · sandstone reduces the water demand of concrete mixes. Samples of crushed stone from quartz sandstone consisted of 95% quartz of the green shale degree of metamorphism. Its quality assessment is based on the internal energy potential, which is determined by the imperfection of the crystal lattice of minerals, inclusions of a mineral-forming

Characterization of the deformation behavior of fine ...

2018-2-20 · The specimens used in this test included compact sandstone collected from a dam site in the Yunnan province of China. The sandstone was an off-white fine-grained (average grain size was 0.23 mm) rock material with an average connected porosity of 2.21% and a bulk density of 2608 kg/m 3.Thin sections of specimens were prepared for petrographic analysis, and the results are shown in Fig. 1.

Experimental investigation of impact of low salinity ...

global rising demand for energy (Robertson 2007;, Sheng, 2014). This remaining amount of oil unrecovered in the reservoir has drawn the responsiveness of oil and gas industries on developing new techniques to recover oil after primary and secondary mechanism has reached its economic limit. Emegwalu (2009) observed that low

Evaluation of plant growth promotion properties and ...

2020-9-23 · In the direct mechanism, ... the Daling series group of crystalline rocks composed of hard-grained sandstone chlorite shales, ... thereby increasing crop productivity to meet the global demand.

Mechanism Study on Release of "Water Blocking Damage" of ...

2020-6-28 · Mechanism Study on Release of "Water Blocking Damage" of Tight Sandstone by Nano Fluid and Case Study ... As global demand for oil and gas increases, energy developers are trying to maximize production through more advanced technologies, such as horizontal and high-temperature drilling, which are applied to unconventional oil and gas resources ...

Decline and depletion rates of oil production: a ...

2014-1-13 · Originally introduced by Arps [31,32], decline curve analysis is a simple tool to model and predict future production under the assumption that depletion is the driving decline mechanism. Decline can be constant ( β =0), directly proportional to …

Geological constraints on the mechanisms of slow ...

2021-3-23 · The recognition of slow earthquakes in geodetic and seismological data has transformed the understanding of how plate motions are accommodated at …

Pressurized Water Reactor (PWR) Systems

2020-10-16 · DRIVE MECHANISM UPPER SUPPORT PLATE INTERNALS SUPPORT LEDGE CORE BARREL SUPPORT COLUMN UPPER CORE PLATE OUTLET NOZZLE BAFFLE RADIAL SUPPORT BAFFLE CORE SUPPORT COLUMNS INSTRUMENTATION THIMBLE GUIDES RADIAL SUPPORT CORE SUPPORT Cutaway View of Reactor Vessel. Reactor Concepts Manual Pressurized Water …

An FBG magnetic sensor for oil flow monitoring in ...

An FBG magnetic sensor for oil flow monitoring in sandstone core. Alireza Samavati a, Zahra Samavati a, Ahmad Fauzi Ismail * a, N. Yahya b, M. H. D. Othman a, M. A. Rahman a, M. A. A. Bakar a, K. N. Koo a, M. F. Salebi a and Iraj Sadegh Amiri * cd a Advanced Membrane Technology Research Centre (AMTEC), Universiti Technologi Malaysia (UTM), Johor Bahru, 81310, Malaysia.

A study on thermal damage mechanism of sandstone based …

A study on thermal damage mechanism of sandstone based on thermal reaction kinetics. August 2021; ... With the increase in global energy demand, people pay more and more attention to the ...

Influence of micro‐pore structure in tight sandstone ...

mechanisms, various methods were combined to describe the micro- pore structure in the Chang 6 tight sandstone reservoir in the Huaqing area, Ordos Basin, China. Nuclear magnetic resonance (NMR) was combined with displacement experiments to determine the distribution of oil and water in pores of different scales before and after water flooding.

Professor Shanyong Wang / Staff Profile / The University ...

The results demonstrate that under impact test conditions of the same mass and different heights, the energy absorbed by sandstone accounts for about 26.7% of the gravitational potential energy. But at the same height and different mass, the energy absorbed by the sandstone …

Chemical and Hydrodynamic Mechanisms for Long-Term ...

2019-5-26 · Geological storage of CO2 (GCS), also referred to as carbon sequestration, is a critical component for decreasing anthropogenic CO2 atmospheric emissions. Stored CO2 will exist as a supercritical phase, most likely in deep, saline, sedimentary reservoirs. Research at the Center for Frontiers of Subsurface Energy Security (CFSES), a Department of Energy, Energy Frontier Research …

Enhanced Oil Recovery (EOR) from depleted Sandstone and ...

2019-10-3 · Nearly one third of the oil is left behind in the reservoir after the primary and secondary recovery methods of oil recovery. This left-behind-volume is lucrative for exploring further options of recovery from the depleted matured hydrocarbon reservoirs to mitigate the increasing demand of hydrocarbons in developing nations.

-Research Progress of Leaching of ...

;With the rapid economic development of energy demand, current exploitation of hard-rock type uranium deposits in south China greatly drops, and sandstone type uranium deposits become a main supply. The main extraction method of sandstone type uranium ore is in-situ leaching, which can be divided into acid leaching, alkali leaching, neutral leaching, and biological leaching according to ...

Shapeways: 3D Printing Service

2021-8-26 · Shapeways is the #1 3D printing service company. Working with over a million customers since 2007 - Get 3D products and parts delivered to over 100 countries.

Mechanical Performance and Durability Evaluation of ...

2020-9-1 · Enlarging local raw material utilization and reducing project costs is a new trend in the construction field. Under this background, sandstone was utilized in a cement-stabilized base in this study. The mineral composition of sandstone and the proportion of each mineral composition in the parent rock were analyzed using X-ray diffraction. To verify its feasibility, sandstone, syenite, marble ...

Sandstone matrix acidizing knowledge and future …

2017-11-14 · mechanism and experimental analysis have not yet been investigated. The paper critically reviews the sandstone acidizing mechanism with different acids, problems occurred during the application of different acids and explores the reasons when matrix stimulation is successful ... demand, high-temperature reservoir acidizing is of para- ...

Hierarchical mechanical metamaterials built with scalable ...

Multistable mechanical metamaterials are artificial materials whose microarchitectures offer more than two different stable configurations. Existing multistable mechanical metamaterials mainly rely on origami/kirigami-inspired designs, snap-through instability, and microstructured soft mechanisms…

UK oil and gas fields: an overview | Geological Society ...

This volume is the fourth in a widely spaced series of milestone Geological Society Memoirs on UK oil and gas fields. These Memoirs record the extraordinary journey of science, engineering, technological development, inspiration, dedication, occasional serendipity and sheer bloody-minded persistence which has led to the development of some 458 named oil and gas fields …

Energies | Free Full-Text | Transport Mechanisms for CO2 ...

CO2 injection in hydrate-bearing sediments induces methane (CH4) production while benefitting from CO2 storage, as demonstrated in both core and field scale studies. CH4 hydrates have been formed repeatedly in partially water saturated Bentheim …

Formation mechanism of tight sandstone gas in areas of low ...

2018-2-1 · Formation mechanism of tight sandstone gas in areas of low hydrocarbon generation intensity: A case study of the Upper Paleozoic in north Tianhuan depression in Ordos Basin, NW China Author links open overlay panel Fudong ZHANG a Jun LI a Guoqi WEI a Xinshe LIU b ng GUO a Jian LI a Liyong FAN b Yuanqi SHE a Hui GUAN a Shen YANG a Liyan SHAO a