Oil & Gas Science and Technology

https://ogst.ifpenergiesnouvelles.fr/

List of Papers (Total 616)

New Developments of the NADI (TM) Concept to Improve Operating Range, Exhaust Emissions and Noise

As an answer to challenges the Diesel engine is facing, IFP has developed a combustion system able to reach near zero particulate and NOx emissions while maintaining performance standards of the D.I Diesel engines, especially in terms of output power and torque. This dual mode engine application called NADITM (Narrow Angle Direct Injection) applies Homogeneous Charge Compression...

Thermodynamic Modelling of Petroleum Fluids

The recent developments and challenges of petroleum thermodynamics are presented in the various papers of this special issue of Oil and Gas Science and Technology (OGST). A common objective of these investigations is the development of calculation tools providing access to reliable thermodynamic as well as thermophysical properties. Hence, this introductory article attempts to...

Analyse de la sensibilité aux paramètres gazoles d'un moteur diesel d'automobile à injection directe

Among the technical solutions that can lead to energy converters with low pollutant emissions and low fuel consumption, diesel engines rank, by nature, in a good position. On this base, direct injection diesel engine has been developed and are now spreading in private passanger cars because of their performances, especially in terms of fuel consumption. However, this equipment...

A 3d Regional Scale Photochemical Air Quality Model. Application to a 3 Day Summertime Episode over Paris

This paper presents AZUR, a 3D Eulerian photochemical air quality model for the simulation of air pollution in urban and semi-urban areas. The model tracks gas pollutant species emitted into the atmosphere by transportation and industrial sources, it computes the chemical reactions of these species under varying meteorological conditions (photolysis, pressure, temperature...

Irreversibility of Gas-Condensate Flow in Gas Cycling Projects: Kinetically Stable Saturation Patterns

The dynamics of a two-phase multicomponent reservoir system which is approaching the steady-state flow regime are studied. First, the compositional model is analyzed in the linear approximation, for the case of a small initial deviation from the steady-state regime. An analytical expression is obtained for the characteristic relaxation time. Next, numerical simulations are...

Measurement and Prediction of Volumetric and Transport Properties of Reservoir Fluids At High Pressure

Discoveries of oil and gas fields under severe conditions of temperature (above 150°C) or pressure (in excess of 50 MPa) have been made in various regions of the world. In the North Sea, production is scheduled from deep reservoirs at 190°C and 110 MPa. This brings with it important challenges for predicting the properties of reservoir fluids, both from an experimental and a...

A New Model to Calculate Three-Phase Relative Permeabilities: Application and Validation for a Sandstone

Three-phase flow in a porous medium is usually described by the Stone model (1970). This model is based on two-phase data and relies on empirical correlations. It is valid only under strong water wettability and recognized as being a poor predictor. The goal of the present study is to develop a mathematical model for three-phase flow avoiding any empirical correlations. In this...

The Challenge of North Sea Oil and Gas

ENeRG, the European Network for Research in Geo-Energy, which groups various European research organizations involved in the development of energy resources contained in the earth's crust, has sponsored a study on The Outlookfor Oil and Gas Production in the North Sea , on behalf of the Commission of European Communities (DG XVII). The Institut français du pétrole (IFP) was the...

Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir Investigation

In this paper, we have studied the effect of chlorine on the surface properties of gamma-alumina, especially on their acid properties. The use of FTIR spectroscopy and 31P MAS NMR of adsorbed trimethylphosphine allows to propose a chlorination mechanism. To correlate the surface properties of these chlorinated gamma-alumina with their catalytic properties, we have used a model...

Ultra Deep Water Drilling Riser Design and Relative Technology

IFP has developed tools and technology to answer the waiting of contractors that wish to drill in deeper water depths, in harsher environment with higher mud weight. The methodology aims to optimise the riser design by proposing practical guidelines implemented by a software. To reduce unproductive time on the rig during the drilling, the Clip Riser has been developed. The main...

Stratigraphy and Oil: a Review - Part 2: Characterization of Reservoirs and Sequence Stratigraphy: Quantification and Modeling

This article is the second of a series of two covering all of the author's research activity at IFP since 1972, of which the main focus has been stratigraphy, seismic as well as sequential. This series is composed of four chapters resuming the important results of the work done and stressing those that have a methodological scope. The chronological order is preserved to emphasize...

Approche sédimentologique pour une résolution optimale des problèmes de pertes de boues de forage

In spite of the geological knowledge accumulated on more than 800 uninterruptedly cored wells during the forty last years, the drilling of the 81/2 diameter phase of Hassi-Messaoud oil field (Algeria) remains delicate because of excavation and drilling mud losses problems. The main objective of this work was to study the problem of drilling mud losses by the use of a...

From the Field to the Model Bernard Tissot's Path

This short article is not aimed to comment the long career of B. Tissot, but to single out certain periods of his professional life that were probably decisive. Of particular interest are the years in which he practiced the profession of oil explorer, and the transition period between these years and his entry into the profession of researcher into the scientific problems...

Formation de coke à partir de propène sur silicalite

The formation of carbonaceous compounds (coke) from propene on silicalite and their effects on the capacity for nitrogen adsorption were investigated in a microbalance system. The operating conditions of coking were as follows: 25-450°C, pressure of alkene of 97 kPa. At ambient temperature (25°C) silicalite, despite its low acidity, is able to produce oligomers from propene in...

Energy Conservation and CO2 Emissions in the Processing and Use of Oil and Gas

By the year 2020 or so, oil and gas, which contribute currently to 62% of the whole of carbon dioxide anthropogenic emissions, will go on to cover roughly half of the world demand of primary energy. Thence, the fight against the CO2 emissions requires the implementation of preventive actions as regards processing (refining of crude oil and natural gas) and uses (combustion in...

Gasoline and Diesel Oil Biodegradation

Fuels are major organic pollutants of soils and ground waters. Persistency of pollutants in the environment depends on the intrinsic biodegradability of constituting hydrocarbons of fuels, on the presence of active microflorae at the polluted areas and on local environmental factors. The intrinsic biodegradability of fuels such as gasoline or diesel oil was determined by using a...

Comparative Behaviour of Multiphase Flowmeter Test Facilities

The application of multiphase flowmeters has started to grow significantly in recent years; one factor which has contributed to the acceptability of multiphase metering is the availability of multiphase test facilities where meters can be subjected to a realistic range of operating conditions. Such facilities are available at the National Engineering Laboratory (NEL) in the...

Petroleum Asphaltenes - Part 1: Asphaltenes, Resins and the Structure of Petroleum

The definition of the nonvolatile constituents of petroleum (i.e., the asphaltene constituents, the resin constituents, and, to some extent, part of the oils fraction insofar as nonvolatile oils occur in residua and other heavy feedstocks) is an operational aid. It is difficult to base such separations on chemical or structural features. This is particularly true for the...

Geological Storage of CO2: a State-Of-The-Art of Injection Processes and Technologies

An overview is given of the well technology needed for CO2 injection and the near wellbore processes: - Well materials and abandonment procedures must be designed in order to avoid CO2 leakage through the well to ensure long-term safety of the CO2 storage. Furthermore, various mechanical effects can affect the well and the injection process. Geomechanical models are required to...

Risk Factors in Oil and Gas Well Electronics Compared to Other Electronic Industries

The oil and gas well electronics industry is a low volume industry in which the development and the operating life cycles of the electronic products used is considerably longer than those of the commonly available commercial parts used to build them. Oil and gas well electronic systems, especially the ones that are used for permanent monitoring of oil wells are required to...

Trace Analyses of Hydrocarbons to Understand the Fate of These Contaminants in Aquifers

In recent years, it has become increasingly evident that the problems related to soil and groundwater pollution are of major concern in industrial countries. The persistence of contamination in the environment and the toxicity of pollutants have led to important investigations and researches in this field. The competent authorities have set up regulations and methodologies to...

Cohesive Zone Description and Quantitative Analysis of Glassy Polymer Fracture

Crazing is described with a viscoplastic cohesive zone which accounts for its initiation for a critical stress state, the thickening of the craze surfaces up to the failure of the craze fibrils which corresponds to the nucleation of a crack locally. A calibration of the parameters of such a cohesive zone is presented for PMMA (Polymethyl methacrylate). The rate dependent...

Exergy Analysis and Exergo-Economic Optimization of Industrial Processes

The overall evaluation of a process can be made by exergy accounting or by financial accounting. In all cases, a process can be optimized by determining the best compromise between the various input fluxes.

Influence of the Crude Oil Characterization on Mmp Calculation

This paper focuses on the influence of the crude oil characterization on minimum miscibility pressure (MMP) calculation. It is shown what kind of compounds may be lumped together in order to calculate the MMP with a good accuracy. In a first step, a selected crude oil is modeled with 37 pure compounds using the characterization procedure developed by Avaullée et al. (1997a) in...

A Methodology to Construct Approximate Constitutive Equations for Porous Rubber Elastic Materials

The present paper makes use of methods from theory of ductile fracture, which was developed to prevent catastrophic failures of steel vessels, for example gas pipelines. A number of structures are made of porous materials, with elastic, isochoric matrix, or of such materials which may become porous when they are subjected to excessive mechanical loads. Predicting the behavior of...