QUANTIFYING FRESH WATER AND PROPPANT REQUIREMENTS FOR OIL AND GAS PRODUCTION FROM THE EAGLE FORD GROUP, GULF COAST, TEXAS

2018 ◽  
Author(s):  
Nicholas J. Gianoutsos ◽  
◽  
Seth S. Haines ◽  
Brian A. Varela ◽  
Katherine J. Whidden
2006 ◽  
Vol 40 (1) ◽  
pp. 4-14
Author(s):  
Mark J. Kaiser

Over the past two years, the vulnerability of offshore production in the Gulf of Mexico has been brought to light by extensive damage to oil and gas facilities and pipelines resulting from Hurricanes Ivan, Katrina, and Rita. In an average year, three tropical storms enter the Gulf with hurricane strength. When a hurricane threatens, oil and gas production and transportation pipelines in the expected path of the storm shut down, crews are evacuated, and refineries and processing plants along the Gulf Coast close. The purpose of this paper is quantify the impact extreme weather has on shut-in production in the Gulf of Mexico using production data and weather events from 1950-2003. A description of the model constructions and results is presented. This paper also reviews the manner in which operators respond to emergency evacuation and develops regression models of shut-in production based on the physical characteristics and timing of weather events.


2020 ◽  
Vol 10 (4) ◽  
pp. 85-94
Author(s):  
Dr. Kareem A. Alwan ◽  
Hayder A. AlAttaby

At the beginning of petroleum industry evolving the regulation did not focus on environmental issues, it was, mainly, looking to natural resources (oil and gas) production and protection. By the time, environmental and safety implications started to be the highest priority, as a result of undesirable impact of oil operations on plant. Huge numbers of dry wells were abandoned according to environmental regulations to prevent side effects which involved contamination of shallow water aquifers, surface seepage of hydrocarbon (whether oil or gas) or salty water, potential hazardous of explosion or soil contaminations, and water contamination at offshore unplugged wells. Based on the hazards above, the main objectives of plugging and abandonment operations is to achieve isolation and protection of all fresh and near fresh water zones, and all future commercial zones, as well as prevent leaks in perpetuity from or into the well and remove surface equipment and cut pipe to a mandated level below the surface. In this paper, an Iraqi oil well was studied as a case study of abandonment processes. The well represents a danger to people, environment and subsurface fresh water; due to unusual raised pressure in different annuluses and copious surface leak from wellhead components while production. Worthily to say that, it is seldom in Iraq to abandon the wells in current time, according to good reservoirs situation. The reasons and justifications of this well plugging, depending on economic analysis and investigation were studied, and explained, according to international practices and procedures of such treatments. The workover option is most economic option, but it was eliminated due to failure in ensuring the well safety and severe environmental impact which expected. According to investigation, pressure and laboratory tests were revealed that P&A is mandatory for this well as soon as possible.


2019 ◽  
Author(s):  
Nicholas J. Gianoutsos ◽  
◽  
Seth S. Haines ◽  
Brian A. Varela ◽  
K.J. Whidden

2015 ◽  
Author(s):  
Amir M. Nejad ◽  
Stanislav Sheludko ◽  
Robert F. Shelley ◽  
Trey Hodgson ◽  
Riley McFall

Abstract Unconventional shale resources are key hydrocarbon sources, gaining importance and popularity as hydrocarbon reservoirs both in the United States and internationally. Horizontal wellbores and multiple transverse hydraulic fracturing are instrumental factors for economical production from shale assets. Hydraulic fracturing typically represents a major component of total well completion costs, and many efforts have been made to study and investigate different strategies to improve well production and reduce costs. The focus of this paper is completion effectiveness evaluation in different parts of the Eagle Ford Shale Formation, and our objective is to identify appropriate completion strategies in the field. A data-driven neural network model is trained on the database comprised of multiple operators' well data. In this model, drilling and mud data are used as indicators for geology and reservoir-related parameters such as pressure, fluid saturation and permeability. Additionally, completion- and fracture-related parameters are also used as model inputs. Because wells are pressure managed differently, normalized oil and gas production is used as a model output. Thousands of neural networks are trained using genetic algorithm in order to fully evaluate hidden correlations within the database. This results in selection of a neural network that is able to understand reservoir, completion and frac differences between wells and identify how to improve future completion/stimulation designs. The final neural network model is successfully developed and tested on two separate data sets located in different parts of the Eagle Ford Shale oil window. Further, an additional test data set comprised of eight wells from a third field location is used to validate the predictive usefulness of the data-driven model. Under-producing wells were also identified by the model and new fracture designs were recommended to improve well productivity. This paper will be useful for understanding the effects of completion and fracture treatment designs on well productivity in the Eagle Ford. This information will help operators select more effective treatment designs, which can reduce operational costs associated with completion/fracturing and can improve oil and gas production.


1986 ◽  
Vol 29 (2) ◽  
pp. 177-201 ◽  
Author(s):  
Bob Gramling ◽  
Sarah Brabant

The boomtown scenario has, over the last decade, become closely associated with energy-related development in the western United States. The model based on this scenario has been generalized to other energy-related production activities, notably offshore oil and gas development. The basic mechanism underlying the boomtown model is the rapid growth of population that occurs as individuals move into an area to take advantage of employment opportunities in the energy production sectors of the economy. In contrast to western energy development, the structure of employment in the primary sectors of offshore oil and gas production allows individuals to commute from considerable distances rather than relocate. Without relocation and the corresponding population growth, some of the negative social and economic impacts generally associated with boomtowns do not occur. Thus the traditional boomtown model is limited in its appropriateness as a tool for energy-related impact assessment. In the present article, the original boomtown model is modified to provide greater flexibility and comprehensiveness, not only with respect to offshore oil and gas production in the gulf coast but for other areas of rapid development as well.


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