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The structure that we have placed on the analysis enables us to directly test the hypothesis of whether economic geography can improve our understanding of …
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Stress field changes can not only result in fracture expansion or closure but also guide the formation and propagation of new fractures, affecting the overall reservoir performance. Excessive pressure changes may cause local rock fracturing and instability, generating unstable fractures and impacting production efficiency.
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A three-dimensional static model of the reservoir is a definition of the structure, stratigraphy, and rock properties at a special time (Thanh et al. 2020; Ashraf et al. 2021). ... Field production was launched in early 2008, achieving 56,000 bbl/day of peak oil rate. The main drainage strategy was pressure maintenance by water injection, …
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Many major oil fields in the world were discovered by using surface mapping to locate domal structures. A more complex method of forming a structural trap is by faulting and structural uplift (see Fig. 1). Faulted structures can vary from a simple faulted anticline to complex faulting around piercement structures and domal uplifts.
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Rock types are defined as units of rocks that present unique reservoir properties and this uniqueness may be caused by similar geological conditions and/or digenetic processes (Gunter et al. 1997).Rock typing is a process that aims to categorize a given heterogeneous reservoir into different rock types and each rock type presents a …
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Sedimentary rock - Stratification, Fossils, Bedding: Sedimentary structures are the larger, generally three-dimensional physical features of sedimentary rocks; they are best seen in outcrop or …
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Igneous rock oil and gas reservoirs have great development potential. Hydraulic fracturing is an important means for the development of these reservoirs. In the process of fracturing and increasing production, fracturing fluid is prone to a hydration reaction with clay minerals in igneous rock, and then, the structure and mechanical …
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Pingdingshan mining area is one of the typical deep mining areas in China, and most of the mines in this area are troubled by the difficulties of the deep-soft-rock roadway support. Based on the concept of synergistic interactions of the interior and exterior bearing structure of the surrounding rock and, considering the specific …
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Redi-Rock Structures of OKI is committed to the highest standard of quality in the production of precast concrete and electrical products. Our team of experts is fully trained and committed to our Quality Control Manual, ensuring consistency in methods and proceduresbined with hard work and integrity, we promise reliable, consistent, high …
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Chapter 3 SEDIMENTARY STRUCTURES 1. INTRODUCTION 1.1 You might have heard us define structure in rocks as rock geometry on a scale much larger than grains.This is a singularly unilluminating definition, be-cause it doesn't conjure up in the mind of the uninitiated any of the great variety of interesting and significant geometries that get …
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Amidst the rapid advancements in digital technology, the pursuit of simulating geologic and mineralogic samples in a digital domain has garnered considerable attention, becoming a linchpin in modern earth science and petrological research. This manuscript intricately explores the deployment of state-of-the-art generative models for …
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INTRODUCTION TO FIELD MAPPING OF GEOLOGIC STRUCTURES GEOL 429 – Field Geology Department of Earth Sciences Montana State University Dr. David R. Lageson Professor of Structural Geology Source: Schmidt, R.G., 1977, Geologic map of the Craig quadrangle, and Clark and Cascade Counties, Montana: U.S. Geological Survey …
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Protolith stress fields include self-weight stress field and tectonic stress field. The factors affecting formation of rock mass stress include physical and mechanical properties of rock, geological structure and activity process, topographic conditions, groundwater, gas, and human production activities.
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To comprehensively understand the mechanical response of a rock-coal combination structure containing a weak layer, a series of laboratory static loading and impact loading experiments were conducted.
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At a watershed rehabilitation project on the Zuni Reservation, New Mexico, large structures (rock and earth) were documented to be mostly filled with sediment and breached over time whereas small structures (rock and brush) had breached to a lesser extent (20%). 22 In 1995, these researchers suggested that repeat surveying at selected …
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Understanding the current stress field through regional stress field modelling, fault kinematic and/or borehole breakout data 82,83,84,85,86 is critical for defining which structures are most ...
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Weathered slates and phyllites Least preferred rock type; Oil and gas fields in basement require the same geological criteria as conventional oil and gas fields, which includes reservoir rocks (fractured or weathered basement), oil and gas source rocks adjacent to or overlying basement, structural closure, and cap rocks which seal off the ...
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A new analytical solution for the thermal-hydraulic coupling process is derived with a 1-D steady state conductive heat flow in the body of hot rock with perpendicular water flow in the single fracture and …
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Characterization of rock typing entails the division of a reservoir into distinct zones that possess similar petrophysical and flow features 1,2,3,4.The application of rock typing is prevalent ...
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source rock intervals, based on oil geochemistry characteristics of source . ... Structure contours showing depth to the top of the Frio Formation and ... estimates of field sizes for undiscovered fields were determined. Production data are divided into 1st, 2nd, and 3rd thirds of production, each third having ...
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Gas was discovered in carbonate rock reservoirs of the Khuff in the Awali field domal structure of Bahrain in 1949. The Khuff Formation is ranked as the largest reservoir formation of non-associated gas in the world with …
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Only minor production has been reported to date from fractured intervals within the Ferry Lake Anhydrite associated with scattered fields within the Gulf Coastal Plain. Hydrocarbon production in Caddo-Pine Island field, Louisiana was found from the thin Haygood Limestone near the base of the Ferry Lake Anhydrite.
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This high-intensity and continuous injection and production will have three effects on the underground gas storage reservoir (Wang et al., 2015; Azin et al., 2018): (1) it will change the rock pore structure parameters, such as the decrease in interstitial material content and the increase in porosity (Fig. 1 a); (2) it will change the fluid ...
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Due to its great hydrocarbon-bearing potential, the formation has great exploration significance in the region (Wender et al., 1998).A recent organic geochemical study conducted on the Unayzah Formation in Kuwait shows a total organic carbon ranging from 0.8 to 3.7 wt. % of a mixture of algal-marine and terrestrial organic matter with the …
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Direct hydrocarbon indicator (DHI) expressions observed on seismic could arise due to various geological conditions. Such expression could lead to misinterpretation as hydrocarbon presence if not properly analyzed. This study employs rock physics attributes analysis to evaluate an identified prospect in the undrilled area of the studied …
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By subjecting the material to depletion and slight unloading, complemented with a range of rock property measurements, we determine what rock physical …
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1.1 You might have heard us define structure in rocks as rock geometry on a scale much larger than grains. This is a singularly unilluminating definition, be-cause it doesn't …
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Abstract To eliminate roof-control disasters typically encountering in mines with thick and hard rock strata, fracture characteristics, instability mechanism and prevention methods were investigated in the study. A mine stope with thick and hard main roof and wedge-structure immediate roof in Zhuxianzhuang Coal Mine was taken as the …
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A drill core sample was collected from the Triassic Chang-7 Member mudstone of the Ordos Basin of China. TOC and S 2 values are 4.49% and 11.58 mg HC/g, respectively (Table 1), with type-II kerogen (Song et al., 2020).The T max value is 442 °C and Ro = 0.77%, denoting a low-maturity sample. Quartz and clay mineral levels are …
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