Papers by Keyword: Oil Industry

Abstract: In nature, it acts, simultaneously or successively, synergistically or antagonistically, on small or larger spaces, for a long or very short time, numerous natural or artificial processes that pollute, leading to the alteration of the quality of the environment. The basic activity carried out within the oil scaffolding consists in the extraction of crude oil and gases from the deposits in their exploitation, their collection, separation of phases (crude oil, reservoir water, gas), crude oil treatment, storage and sending to users. Contamination of the field related to drilling-extraction wells with crude oil, heavy petroleum products, salt water, various chemicals, etc. has a random character, but with undesirable implications on soil, surface water and / or groundwater, depending on the nature of the pollutant, its quantity and area of spread Pollution sources in the oil industry, both systematic and accidental, have a greater or lesser spread, depending on the size of the field, the type and composition of the extracted fluids, the extraction technology used, the age of oil exploitation in the area, relief and hydrographic network. Having available the data provided by the pollution diagnosis, it is possible to assess the risk that the investigated pollution represents for the people on the site and for the natural environment. If it turns out that the risk is significant, then the decision is made to switch to depollution works. The choice of an appropriate depollution path is made on the basis of relevant technical and economic criteria, which is a feasibility study. The proposed depollution technology must be the most appropriate for the case at hand and, at the same time, be available on the technology market. The most important part of the paper is dedicated to presenting the results of an experimental study on the depollution of soils contaminated with liquid petroleum products by sparging technologies, in order to ensure a sustainable remedy. The results of the soil analysis used in the experimental determination are presented, as well as the physic - chemical characteristics of the main soil pollutants. In the experimental part, laboratory decontamination of systems consisting of polluted soils was performed at the laboratory level, using air as a depollution agent. The processing of the data obtained from the experimental determinations allowed obtaining qualitative and quantitative information related to the decontamination speed depending on the nature of the soil, the nature and concentration of the pollutant and the temperature of the decontamination air. Estimating the cost places this technology at a low level compared to thermal technologies and slightly higher than microbiological technologies.

Abstract: In this paper a newly environmental friendly Non-Destructive Testing (NDT) method for underground oil and gas pipeline networks is proposed. A suitable equipment extracts small samples of material from installed buried pipes for mechanical testing. Numerical calculations using Finite Element Analysis (FEM) proves that decreasing wall-thickness pipes is safe for in-field operating conditions. Nevertheless, those locations from where samples are cut should be monitored. For instance by means of Acoustic Testing (AT) system. New way of placing sensors is proposed. Sensors are introduced inside the pipe so that any acoustic wave changes from surrounding medium can be measured. In this type of AT a straightforward procedure must be followed to install sensors on pipe. Therefore, there is no need to uncover tested areas with qualified personnel. The research showed that the signals recorded from internal sensors are comparable to those results extracted from external ones. The study also revealed lower vulnerability to acoustic interference of the sensor placed inside the pipeline.

Abstract: In the oil production, many types of sensors are used in order to monitor some important parameters such as temperature, pressure and flow. These sensors are subjected to harsh operating conditions. Therefore they must present an inert and stable behavior in these conditions. The temperature sensors that are more suited to the oil industry are the Temperature Detectors by Resistance (TDR), because they have high accuracy and wide temperature range. Usually these devices are built with metals as detectors of temperature by encapsulated resistance in inert ceramics. The main objective of this research is to produce new ceramics of a Ca₂AlZrO_5,5 cubic complex perovskite structure for the encapsulation of temperature sensors. The stoichiometric amounts of the constituent chemicals, with a high degree of purity, are homogenized, through a solid state reaction in a high energy ball mill. They are then compacted by uniaxial pressing and calcined at 1200°C for 24 hours. Soon after, the tablet is crushed giving place to a ceramic powder and the analysis of X-ray diffraction is performed. According to the sintering behavior of the ceramic powder, the microstructure and the homogeneity are studied by the Scanning Electron Microscopy. The results are presented in terms of the potential of this ceramic for applications as components of temperature sensors.

Abstract: Like any other industrial activity, the production of hydrocarbons affects the environment both through the performance of actual technological process and through undesired accidents, which may occur.The paper presents technical and economic contributions in the field of monitoring and reducing the ecological impact of petroleum exploitation on the environment and an analysis of technologies used to remove pollution from soils and the subsurface contaminated by hydrocarbons. The first part presents the stream of drilling and production activities and the impact of oil and gas reservoir exploitation on the environment. Also, an assessment of pollution sources and oil industry specific agents is performed.The case study is performed based on the documentation prepared by PETROM S.A., a member of OMV Group, in connection with Moinesti Operating Area, which includes the investigation performed in Cucuieţi structure and on the samples taken from the area and investigates in the specialized laboratories the Oil and Gas University in Ploieşti.In the last part of this paper, the most important conclusions are presented. They outline the strengths and different issues relating to pollution removal technologies that were presented, but also the results of the performed studies.

Abstract: With the advances in biological sciences, microbiology techniques to be applied to people in all areas of production and life, this paper introduces the microorganisms in the oil industry in all sectors such as oil and gas exploration microorganisms, microbial enhanced oil recovery and microbial degradation of the oil pollution and other aspects of the application. By summarizing the impact of microbial technology for the various aspects of oil industry, make the foundation of the microbial creative application in the field of oil industry.

Abstract: This paper analyzes the problems in the supply chain of oil industry, proposes a model of the green supply chain of oil industry, and uses a case to illustrate the application of the green supply chain management of oil industry. The process consists of: green raw material, green exploitation, green store, green transportation, green sale, green consumption, green return ,green recycling and green disposal. It is proved well in application.