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The Application Of Single Porosity Model To Predict The Performance Of The Low Permeability Naturally Fractured Formations, Martial Hermann Tchuindjang Yatchou
The Application Of Single Porosity Model To Predict The Performance Of The Low Permeability Naturally Fractured Formations, Martial Hermann Tchuindjang Yatchou
Graduate Theses, Dissertations, and Problem Reports
Natural gas extraction from shale is currently an expensive endeavor due to the tight reservoir rock with nano-darcy permeability. New technology in the form of horizontal drilling and hydraulic fracturing (fracturing through the use of high pressure liquids) has overcome the flow capacity problem of shale to achieve economic production. The low permeability shale formations, such Marcellus Shale, contain a natural fracture system with extremely low permeability. The characteristics of the natural fracture system are non-existent; therefore the application of single porosity model to predict the production performance of the shale formations can reduce the need for detail fracture system …
Impact Of Stress-Field Changes Induced By Hydraulic Fracturing On Subsurface Fault Stability, Qian Gao
Impact Of Stress-Field Changes Induced By Hydraulic Fracturing On Subsurface Fault Stability, Qian Gao
Graduate Theses, Dissertations, and Problem Reports
Hydraulic fracturing is essential for economically producing hydrocarbons from shale reservoirs, and thus has been extensively used in completion of shale gas wells. However, fracturing formations can change in-situ stresses in the surrounding areas. There are concerns that hydraulic fracturing may potentially reactivate the subsurface faults nearby the treatment wells. The reactivated faults could cause many problems, such as early aborting/failure of fracturing treatment, fluid leakage along the fault and even seismicity events.;3D numerical models are developed based on finite element method. The comparison between analytical and numerical solutions indicates an excellent agreement has been achieved, which certificates the applicability …
Artificial Intelligence Assisted History Matching -- Proof Of Concept, Alireza Shahkarami
Artificial Intelligence Assisted History Matching -- Proof Of Concept, Alireza Shahkarami
Graduate Theses, Dissertations, and Problem Reports
History matching is the process of adjusting uncertain reservoir parameters until an acceptable match with the measured production data is obtained. Complexity and sub-optimal knowledge of reservoir characteristics makes this process time-consuming with high computational cost. In the past, computer-assisted history matching has attempted to make this process faster; however, the degree of success of these techniques continues to be a subject for debate.;In this study, the objective is to prove and examine the application of a relatively new Artificial Intelligence based technology (Surrogate Reservoir Model -- SRM) to assist the history match process. SRM is a prototype of full-field …
The Incorporation Of Aluminum Hydroxide In Water Based Muds To Stabilize Marcellus Shale Drilling In West Virginia, Hussain Ali Al-Fadhel
The Incorporation Of Aluminum Hydroxide In Water Based Muds To Stabilize Marcellus Shale Drilling In West Virginia, Hussain Ali Al-Fadhel
Graduate Theses, Dissertations, and Problem Reports
The purpose of this study was to develop a safe and environmentally acceptable water base mud that will be able to suppress swelling and promote stability to the West Virginian Marcellus shale. The problem was approached by utilizing aluminum precipitation chemistry in the drilling fluid, unlike the traditional cation-exchange approach.;A dynamic swelling meter was designed by modifying a 0.001 mm resolution dial indicator and using a specially programmed smart cable connecting the dial indicator to a computer. The swelling data was acquired by the smart cable every six seconds. As a result, there were 14,400 measured points for each sample …
Impact Of Relative Permeability On The Outcomes Of Natural Gas Production From Low Permeability Reservoir, Melaine Edouard Kolimedje
Impact Of Relative Permeability On The Outcomes Of Natural Gas Production From Low Permeability Reservoir, Melaine Edouard Kolimedje
Graduate Theses, Dissertations, and Problem Reports
Tight Gas Reservoir (TGR) is one of the primary types of unconventional reservoirs now accounting for about 25% of US gas production. The complexity of the reservoir leads to low productivity issues and thus there is a need to thoroughly understand all the parameters of uncertainty. One of the prime factors affecting productivity is the relative permeability. In this study, the effect of relative permeability on cumulative gas production for gas-water phase was studied in detail using a numerical computer simulation study.;In an effort to comprehend the impact of the relative permeability on gas production over the life of these …
A Study Of Chemical Interactions Between The Marcellus Shale And Attapulgite And Bentonite Clays, Virginia Price Naryka
A Study Of Chemical Interactions Between The Marcellus Shale And Attapulgite And Bentonite Clays, Virginia Price Naryka
Graduate Theses, Dissertations, and Problem Reports
Chemical interactions occur between water based muds and shale formations. These shale-fluid interactions are often associated with problems that arise when drilling. This paper presents results from a study investigating chemical interactions that occurred between the Marcellus shale and attapulgite and bentonite clays. The aim of this project was to determine if there were particular elemental changes that could be directly associated with either an attapulgite or bentonite clay. In this study, samples from two wells in West Virginia were analyzed. A Scanning Electron Microscope (SEM) was used to observe the surface of each sample, and an INCA X-Ray Microanalysis …
Effect Of Sediment Composition On The Uniformity Of Experimentally-Formed Methane Hydrate, Terrence R. Ryan
Effect Of Sediment Composition On The Uniformity Of Experimentally-Formed Methane Hydrate, Terrence R. Ryan
Graduate Theses, Dissertations, and Problem Reports
Experimentalists that try to duplicate the methane hydrate found in natural systems have regularly made non-uniform hydrate in packed sediments. Some element of the natural system is missing from the experimental procedure. The goal of this research was to discover what role sediment composition and grain size play in the uniformity of experimentally-formed methane hydrate. The discoveries were quite surprising.;The motivation for this research lies in the analysis of sediment samples and well-log data from the 2010 Mount Elbert, AK Stratigraphic Test Well. Sedimentological analysis of core samples from this well indicated that a thin section within the methane hydrate …
Impact Of Stimulation Treatments On Production Performance Of Horizontal Wells In The Marcellus Shale, Kimberly L. Larch
Impact Of Stimulation Treatments On Production Performance Of Horizontal Wells In The Marcellus Shale, Kimberly L. Larch
Graduate Theses, Dissertations, and Problem Reports
The interest in exploitation of ultra-low permeability formations, such as the Marcellus Shale, has increased in the recent years. Shale formations require massive stimulation treatments to achieve economic production. The recent advances in horizontal drilling and multistage hydraulic fracturing have proved successful in achieving commercial production. However, the parameters that directly affect lifetime production of the wells have not been well established.;The primary objective of this study is to examine the effects of basic stimulation parameters used in hydraulic fracturing of Marcellus Shale wells on production performance. Historical production data and stimulation treatment information have been collected and analyzed for …
Production Decline Behavior Of Shale Gas Reservoirs, Zahra Razzaghpanah
Production Decline Behavior Of Shale Gas Reservoirs, Zahra Razzaghpanah
Graduate Theses, Dissertations, and Problem Reports
The rise in global demand for energy leads oil and gas industry to enhance and develop newer techniques and technologies that produce more oil and gas from resources. Unconventional gas resources comprise a very important share of the domestic natural gas resource base and offer tremendous potential for future reserve and production growth. One of the most important issues associated with shale gas reservoirs is to have an accurate and reliable estimation of the reserves and ultimate recovery. The purpose of this research is to compare different decline curve analysis techniques, it is also to provide a more reliable method …