نتایج جستجو برای: iranian asphaltenic oil reservoir

تعداد نتایج: 215159  

1999
Derek C. Quigley Bruce P. Luyendyk

Prolific natural hydrocarbon seepage occurs offshore of Coal Oil Point in the Santa Barbara Channel, California. Within the water column above submarine vents, plumes of hydrocarbon gas bubbles act as acoustic scattering targets. Using 3.5 kHz sonar data, seep distribution offshore of Coal Oil Point was mapped for August 1996, July 1995, and July 1973. Comparison of the seep distributions over ...

2017
Biji Shibulal Saif N. Al-Bahry Yahya M. Al-Wahaibi Abdulkadir E. Elshafie Ali S. Al-Bemani Sanket J. Joshi

Microbial Enhanced Oil Recovery (MEOR) is a potential technology for residual heavy oil recovery. Many heavy oil fields in Oman and elsewhere have difficulty in crude oil recovery because it is expensive due to its high viscosity. Indigenous microbes are capable of improving the fluidity of heavy oil, by changing its high viscosity and producing lighter oil fractions. Many spore-forming bacteri...

H. Müller Steinhagen Kaveh Ahmadi Mohammad Jamialahmadi Siavash Ashoori,

In this work, the precipitation and re-dissolution of asphaltenes were studied for an Iranian relatively heavy crude oil. A series of experiments were designed and carried out to quantitatively examine the reversibility of asphaltenes precipitation upon the change in the solvent concentration along with the temperature. n-Heptane was used as the precipitant, and a temperature range of 30 to...

2006
P. Somasundaran L. Zhang

Chemical-flooding schemes for recovering residual oil have been in general less than satisfactory due to loss of chemicals by adsorption on reservoir rocks, precipitation, and resultant changes in rock wettability. Adsorption and wettability changes are determined mainly by the chemical structure and mix of the surfactants, surface properties of the rock, composition of the oil and reservoir fl...

2003
P. SOMASUNDARAN P. CHANDAR

Surfactant abstraction by reservoir lIIinerals is goverlled by a nulllber of interacting pI,enomena owulg to the heteroqelltlity of the reservoir rock, the c~lex nature of the surfact.nts use.!, as well as the .ulticonponent nature of the reservoir fluid resulting fr~ the presence of inorqanics, co-surfactants, oil and polyJ:lers. The role of these factors in influencing die surfactant abstract...

2008
Jan-Dirk Jansen Okko H. Bosgra Paul M.J. Van den Hof

An emerging method to increase the recovery of oil from subsurface reservoirs is the application of measurement and control techniques to better control the multiphase flow in the reservoir over the entire production period. In particular the use of sensors and remotely controllable valves in wells and at surface, in combination with large-scale reservoir flow models is promising. Various eleme...

2018
Qiang Yu Maria Teresa Guzman Gutierrez May-Britt Hägg

The energy demand in our modern society is continuously rising, which clearly shows that fossil fuels will for many decades still play an important role – oil and natural gas are important energy resources in this picture. Nevertheless, oil and natural gas reserves are limited, and it is therefore a prioritized task to produce more oil and gas from existing wells and reservoirs for better explo...

2015
Hui Liu Kun Wang Zhangxin Chen

This paper presents our work on simulation of large-scale reservoir models on IBM Blue Gene/Q and studying the scalability of our parallel reservoir simulators. An in-house black oil simulator has been implemented. It uses MPI for communication and is capable of simulating reservoir models with hundreds of millions of grid cells. Benchmarks show that our parallel simulator are thousands of time...

2008
P. Sivan G. C. Datta R. R. Singh

The ability to determine the pyrrolic nitrogen compounds, which present in trace quantities in oils, exhibit changes in both absolute and relative concentrations that correlate with migration distance. Such molecules appear promising as empirical but quantitative indicators of the relative distances of oils and present a first step towards true source to oil reservoir distance indicators. Quant...

2017
Yinghao Shen Xinyu Yang Yuelei Zhang

Received: August 22, 2016 Revised: February 07, 2017 Accepted: March 10, 2017 Abstract: Background: Tight sandstone reservoirs play an important role in the oil industry. The permeability of tight sandstone reservoir generally has stronger stress sensitivity than that of conventional reservoir because of the latter’s poor physical properties. However, the production analysis of tight sandstone ...

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