Low-tension gas process in high-salinity and low-permeability reservoirs
نویسندگان
چکیده
منابع مشابه
An Experimental Study of CO2-low Salinity Water Alternating Gas Injection in Sandstone Heavy Oil Reservoirs
Several studies have shown that oil recovery significantly increased by low salinity water flooding (LSWF) in sandstones. However, mechanism of oil recovery improvement is still controversial. CO2 that develops buffer in presence of water is expected as a deterrent factor in LSWF efficiency based on mechanism of IFT reduction due to pH uprising. No bright evidence in literature suppo...
متن کاملan experimental study of co2-low salinity water alternating gas injection in sandstone heavy oil reservoirs
several studies have shown that oil recovery significantly increased by low salinity water flooding (lswf) in sandstones. however, mechanism of oil recovery improvement is still controversial. co2 that develops buffer in presence of water is expected as a deterrent factor in lswf efficiency based on mechanism of ift reduction due to ph uprising. no bright evidence in literature supports this id...
متن کاملFracture Evaluation With Pressure Transient Testing in Low-Permeability Gas Reservoirs
Introduction The purpose of this paper is to summarize the theoretical background of methods that we have attempted to use to determine formation permeability, fracture length, and fracture conductivity in low-permeability, hydraulically fractured gas reservoirs. This summary is intended to emphasize the major strengths and weaknesses of the methods studied. These characteristics have not alway...
متن کاملGas-liquid Relative Permeability Estimation in 2D Porous Media by Lattice Boltzmann Method: Low Viscosity Ratio 2D LBM Relative Permeability
This work is a primary achievement in studying the CO2 and N2–oil systems. To predict gas-liquid relative permeability curves, a Shan-Chen type multicomponent multiphase lattice Boltzmann model for two-phase flow through 2D porous media is developed. Periodic and bounce back boundary conditions are applied to the model with the Guo scheme for the external body force (i.e.,...
متن کاملAnalysis of bacterial diversity in two oil blocks from two low-permeability reservoirs with high salinities
The community diversities of two oil reservoirs with low permeability of 1.81 × 10(-3) and 2.29 × 10(-3) μm(2) in Changqing, China, were investigated using a high throughput sequencing technique to analyze the influence of biostimulation with a nutrient activator on the bacterial communities. These two blocks differed significantly in salinity (average 17,500 vs 40,900 mg/L). A core simulation ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Petroleum Science
سال: 2020
ISSN: 1672-5107,1995-8226
DOI: 10.1007/s12182-020-00455-9