Shale-gas resource plays can be distinguished by gas type and system characteristics of geo-mecha... more Shale-gas resource plays can be distinguished by gas type and system characteristics of geo-mechanics. Mineralogy appears to be a key factor characterizing the best wells. The brittleness of the shale is key to stimulation whereby a fracture network is created, providing linkage between the wellbore and the microporosity. The Barnett Shale is considered to be the best type of shale gas reservoirs produced as its mineralogical and mechanical conditions are discussed to farther knowledge about the shale gas characterizations with a comparison of different productive types of shale like Marcellus Shale. The best Barnett Shale production comes from zones with 45% quartz and only 27% clay (Bowker, 2003), Barnett shale can be defined as a mixed siliceous mudstone, and mostly clay rich Siliceous mudstone according to a Ternary-based classification. The study of minerals aspects in Barnett shale defined clearly that the main clay mineral that could takes control on Barnett shale is the Illite and minor Smectite which could probably be the best clay mineral to describe shale gas reservoir that will be deduced later. The Barnett Shale produces so much gas because it is brittle and responds to stimulation (and because it has high gas contents). This brittleness is related to mineralogy, and the Barnett Shale contains high percentages of quartz derived from biogenic silica (data from Gas Research Institute, 1991). The Hydraulic Fracturing with appropriate proppant is also provided.
Ras El Hekma area represents one of the main headlands along the southern Mediterranean coast, th... more Ras El Hekma area represents one of the main headlands along the southern Mediterranean coast, this study is focused on Fuka Area on the Northwestern coast of Egypt. The purpose of this study is the determination of the subsurface layer’s distribution, exploration of water-bearing layers and determination of their thickness and depth, as well as delineation of saltwater intrusion in Fuka coastal aquifer, which represents the main environmental problem in the coastal areas. The study area has three aquifers: Holocene, Pleistocene, and Middle Miocene aquifers. The present study clarifies the depth to fresh water which is recommended to be drilled and also reveals the saline water depth to be avoided. This delineation was by using Geoelectric method to make true resistivity, true depth and true thickness maps and interpret them with considerations of the Hydrogeology and Geology of the area that was previously studied.
This Article is about the Unconventional reservoirs; what are they, what are the differences betw... more This Article is about the Unconventional reservoirs; what are they, what are the differences between them and the normal Conventional reservoirs and what made us in need for studying and exploring these reservoirs even if they are very hard to produce and need much money and sacrifices. It also describes a geological, petrophysical, geochemical and geomechanical study of shale gas/oil characteristics that without it we can’t have a successful exploration and our target is to reach the sweet spots which are defined as the most prospective volumes of the shale play, they are primarily targeted to achieve early economic production. From all these studies we can conclude the methodology of exploration, as well as having a general view about the techniques used for investigation of the shale gas/oil, and also discussing the worldwide production and in Egypt.
Shale-gas resource plays can be distinguished by gas type and system characteristics of geo-mecha... more Shale-gas resource plays can be distinguished by gas type and system characteristics of geo-mechanics. Mineralogy appears to be a key factor characterizing the best wells. The brittleness of the shale is key to stimulation whereby a fracture network is created, providing linkage between the wellbore and the microporosity. The Barnett Shale is considered to be the best type of shale gas reservoirs produced as its mineralogical and mechanical conditions are discussed to farther knowledge about the shale gas characterizations with a comparison of different productive types of shale like Marcellus Shale. The best Barnett Shale production comes from zones with 45% quartz and only 27% clay (Bowker, 2003), Barnett shale can be defined as a mixed siliceous mudstone, and mostly clay rich Siliceous mudstone according to a Ternary-based classification. The study of minerals aspects in Barnett shale defined clearly that the main clay mineral that could takes control on Barnett shale is the Illite and minor Smectite which could probably be the best clay mineral to describe shale gas reservoir that will be deduced later. The Barnett Shale produces so much gas because it is brittle and responds to stimulation (and because it has high gas contents). This brittleness is related to mineralogy, and the Barnett Shale contains high percentages of quartz derived from biogenic silica (data from Gas Research Institute, 1991). The Hydraulic Fracturing with appropriate proppant is also provided.
Ras El Hekma area represents one of the main headlands along the southern Mediterranean coast, th... more Ras El Hekma area represents one of the main headlands along the southern Mediterranean coast, this study is focused on Fuka Area on the Northwestern coast of Egypt. The purpose of this study is the determination of the subsurface layer’s distribution, exploration of water-bearing layers and determination of their thickness and depth, as well as delineation of saltwater intrusion in Fuka coastal aquifer, which represents the main environmental problem in the coastal areas. The study area has three aquifers: Holocene, Pleistocene, and Middle Miocene aquifers. The present study clarifies the depth to fresh water which is recommended to be drilled and also reveals the saline water depth to be avoided. This delineation was by using Geoelectric method to make true resistivity, true depth and true thickness maps and interpret them with considerations of the Hydrogeology and Geology of the area that was previously studied.
This Article is about the Unconventional reservoirs; what are they, what are the differences betw... more This Article is about the Unconventional reservoirs; what are they, what are the differences between them and the normal Conventional reservoirs and what made us in need for studying and exploring these reservoirs even if they are very hard to produce and need much money and sacrifices. It also describes a geological, petrophysical, geochemical and geomechanical study of shale gas/oil characteristics that without it we can’t have a successful exploration and our target is to reach the sweet spots which are defined as the most prospective volumes of the shale play, they are primarily targeted to achieve early economic production. From all these studies we can conclude the methodology of exploration, as well as having a general view about the techniques used for investigation of the shale gas/oil, and also discussing the worldwide production and in Egypt.
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Papers by Basma Ahmed
The purpose of this study is the determination of the subsurface layer’s distribution, exploration of water-bearing layers and determination of their thickness and depth, as well as delineation of saltwater intrusion in Fuka coastal aquifer, which represents the main environmental problem in the coastal areas.
The study area has three aquifers: Holocene, Pleistocene, and Middle Miocene aquifers. The present study clarifies the depth to fresh water which is recommended to be drilled and also reveals the saline water depth to be avoided. This delineation was by using Geoelectric method to make true resistivity, true depth and true thickness maps and interpret them with considerations of the Hydrogeology and Geology of the area that was previously studied.
It also describes a geological, petrophysical, geochemical and geomechanical study of shale gas/oil characteristics that without it we can’t have a successful exploration and our target is to reach the sweet spots which are defined as the most prospective volumes of the shale play, they are primarily targeted to achieve early economic production. From all these studies we can conclude the methodology of exploration, as well as having a general view about the techniques used for investigation of the shale gas/oil, and also discussing the worldwide production and in Egypt.
The purpose of this study is the determination of the subsurface layer’s distribution, exploration of water-bearing layers and determination of their thickness and depth, as well as delineation of saltwater intrusion in Fuka coastal aquifer, which represents the main environmental problem in the coastal areas.
The study area has three aquifers: Holocene, Pleistocene, and Middle Miocene aquifers. The present study clarifies the depth to fresh water which is recommended to be drilled and also reveals the saline water depth to be avoided. This delineation was by using Geoelectric method to make true resistivity, true depth and true thickness maps and interpret them with considerations of the Hydrogeology and Geology of the area that was previously studied.
It also describes a geological, petrophysical, geochemical and geomechanical study of shale gas/oil characteristics that without it we can’t have a successful exploration and our target is to reach the sweet spots which are defined as the most prospective volumes of the shale play, they are primarily targeted to achieve early economic production. From all these studies we can conclude the methodology of exploration, as well as having a general view about the techniques used for investigation of the shale gas/oil, and also discussing the worldwide production and in Egypt.