INVESTIGATION OF LOW SALINE WATER’S EFFECTS ON RELATIVE PERMEABILITY IN CARBONATE RESERVOIRS

2016 ◽  
Vol 78 (10) ◽  
Author(s):  
Hamed Hematpour ◽  
Mohammad Parvazdavani ◽  
Saeed Abbasi ◽  
Syed Mohammad Mahmood
Keyword(s):  
Relative Permeability ◽  
Low Cost ◽  
Point Of View ◽  
Carbonate Reservoir ◽  
Carbonate Reservoirs ◽  
Water Flooding ◽  
Karoon River ◽  
The North ◽  
Relative Permeability Curves ◽  
The Persian Gulf

Low Salinity Water flooding (LSW) is one of the favorable subsets of water flooding EOR methods due to its great advantages over normal water flooding; having a low cost of operation and being environmentally-friendly. LSW has been studied in mathematical, experimentally and practically point of view in numerous numbers of sandstone cases in the worldwide.  Existing of giant carbonate reservoirs containing a great amount of petroleum in the regions of the North Sea and the Middle East have been turned into a motivation for the relevant experts to focuses on the possibility of running an LSW project in a carbonate reservoir. Accordingly, this paper aims to investigate this possibility through running two sets of flooding tests on selected cores from one of Iranian carbonate reservoirs. In more details, on each core two water flooding tests have been conducted in which the first test have been run by a sample of water from the Persian Gulf with high salinity and in the second one the injected water has been from Karoon River with a lower rate of salinity. Then, the recovery factor from both tests of a target core has been compared. The results indicate that running an LSW have been caused improvement in recovery factors which was approved by relative permeability curves analysis.

Artificial-Intelligence Technology Predicts Relative Permeability of Giant Carbonate Reservoirs

2009 ◽  
Vol 12 (01) ◽  
pp. 96-103 ◽  
Author(s):  
Saud M. Al-Fattah ◽  
Hamad A. Al-Naim
Keyword(s):  
Experimental Data ◽  
Relative Permeability ◽  
Reservoir Simulation ◽  
Nonlinear Problems ◽  
Carbonate Reservoir ◽  
Carbonate Reservoirs ◽  
Porous Rocks ◽  
Data Set ◽  
Ann Models ◽  
Permeability Data

Summary Determination of relative permeability data is required for almost all calculations of fluid flow in petroleum reservoirs. Water/oil relative permeability data play important roles in characterizing the simultaneous two-phase flow in porous rocks and predicting the performance of immiscible displacement processes in oil reservoirs. They are used, among other applications, for determining fluid distributions and residual saturations, predicting future reservoir performance, and estimating ultimate recovery. Undoubtedly, these data are considered probably the most valuable information required in reservoir simulation studies. Estimates of relative permeability are generally obtained from laboratory experiments with reservoir core samples. In the absence of the laboratory measurement of relative permeability data, developing empirical correlations for obtaining accurate estimates of relative permeability data showed limited success, and proved difficult, especially for carbonate reservoir rocks. Artificial-neural-network (ANN) technology has proved successful and useful in solving complex structured and nonlinear problems. This paper presents a new modeling technology to predict accurately water/oil relative permeability using ANN. The ANN models of relative permeability were developed using experimental data from waterflood-core-tests samples collected from carbonate reservoirs of giant Saudi Arabian oil fields. Three groups of data sets were used for training, verification, and testing the ANN models. Analysis of results of the testing data set show excellent agreement with the experimental data of relative permeability. In addition, error analyses show that the ANN models developed in this study outperform all published correlations. The benefits of this work include meeting the increased demand for conducting special core analysis (SCAL), optimizing the number of laboratory measurements, integrating into reservoir simulation and reservoir management studies, and providing significant cost savings on extensive lab work and substantial required time.

Study on the Surfactant/Polymer Combination Flooding Relative Permeability Curves in Offshore Heavy Oil Reservoirs

2014 ◽  
Vol 887-888 ◽  
pp. 53-56 ◽  
Author(s):  
Wen Chao Jiang ◽  
Jian Zhang ◽  
Kao Ping Song ◽  
En Gao Tang ◽  
Bin Huang
Keyword(s):  
Relative Permeability ◽  
Heavy Oil ◽  
Great Influence ◽  
Water Flooding ◽  
Residual Oil ◽  
Experimental Conditions ◽  
Oil Saturation ◽  
Heavy Oil Reservoirs ◽  
Relative Permeability Curves ◽  
Associating Polymers

Different kinds of compound solutions were prepared by using different concentrations of hydrophobically associating polymers and sulfonate type surfactant. The static viscosity and interfacial tension of these solutions were measured. On the experimental conditions of the Suizhong 36-1 oilfield, the relative permeability curves of the water flooding and the surfactant/polymer combination flooding were measured through the constant speed unsteady method and the experimental data were processed through the way of J.B.N. The several existing kinds of viscosity processing methods of non-newtonian fluid were compared and analysed , and a new way is put forward . The results show that the relative permeability of the flooding phase is very low while displacing the heavy oil; the relative permeability of oil in combination flooding is higher than that in water flooding, the relative permeability of flooding phase in combination flooding is lower than that in water flooding and the residual oil saturation of combination flooding is lower than that of water flooding. Meanwhile, the concentrations of polymer and surfactant have a great influence on the surfactant/polymer combination relative permeability curves.

Obtaining Relative Permeability Curve of Carbonate Reservoir by the Weighted Method

2019 ◽  
Vol 13 (1) ◽  
pp. 83-91
Author(s):  
Bin Huang ◽  
Zhenzhong Shi ◽  
Ying Wang ◽  
Cheng Fu ◽  
Meng Cai
Keyword(s):  
Relative Permeability ◽  
Physical Simulation ◽  
Carbonate Reservoir ◽  
New Method ◽  
Hydrodynamic Characteristics ◽  
Relative Permeability Curve ◽  
Porosity And Permeability ◽  
Weight Method ◽  
Oil Water ◽  
Relative Permeability Curves

Background: The oil-water relative permeability curve is an important experimental data and basis for oilfield development scheme and dynamic prediction. The characteristics of oil and water relative permeability curves in different reservoirs are otherness. Objective: In order to enable various effects to be reflected in the standardized relative permeability curve, the standardized relative permeability curve can reflect the characteristics of each core. Method: The core is taken from core wells in a similar flow unit. The oil-water relative permeability curves are measured by indoor physical simulation experiments. The oil-water relative permeability curves of representativeness and conforming to hydrodynamic characteristics are screened. Because the porosity and permeability of different cores have different effects on the relative permeability curve, the weight of the porosity and permeability of each core is added to the standard relative permeability curve in the process of solving standardized relative permeability curve. Results: A new method that the weight method to be used to solve the problem of the standardized relative permeability curve is obtained. The comparison of the new method and the average method shows that both of them are highly consistent. Conclusion: The patent on the solution of the relative permeability curve is improved. Considered the effect of different cores of porosity and permeability on the relative permeability curve. Calculated the weight of the porosity and permeability of different cores. The representative normalized relative permeability curve is obtained by using the weight method.

Past Verses Present; Metamorphosis in Different Spheres of Guwahati: A Study of Srutimala Duara’s Mindprints of Guwahati

2020 ◽  
Vol 8 (2) ◽  
pp. 13
Author(s):  
Ankita Pandey
Keyword(s):  
Point Of View ◽  
Areca Nut ◽  
Medieval Period ◽  
River Bank ◽  
North East India ◽  
North East ◽  
The North ◽  
Indian State ◽  
The City ◽  
Beautiful City

Guwahati derives its name from the Assamese word “Guwa” means areca nut and “Haat” means market. However, the modern Guwahati had been known as the ancient Pragjyotishpura and was the capital of Assam under the Kamrupa kingdom. A beautiful city Guwahati is situated on the south bank of the river Bramhaputra. Moreover, It is known as the largest city in the Indian state of Assam and also the largest metropolis in North East India. It has also its importance as the gateway to the North- East India. Assamese and English are the spoken languages in Guwahati.  In 1667, the Mogul forces were defeated in the battle by the Ahom forces commanded by Lachut Barphukan. Thus, in a sense Guwahati became the bone of contention among the Ahoms, Kochas and the Moguls during the medieval period.  Guwahati the administrative headquarters of Lower Assam with a viceroy or Barbhukan was made by the Ahom king.  Since 1972 it has been the capital of Assam. The present paper will discuss the changes happened in Guwahati over the period of late 1970s till the present time. It will focus on the behavior of people, transformed temples, Panbazar of the city, river bank of Bramhaputra, old Fancy Bazaar, chaotic ways, festivals and seasons including a fifth man made season etc. It will also deal how over the years a city endowed with nature’s gifts and scenic views, has been changing as “a dirty city”. Furthermore, it will also present the insurgencies that have barged into the city. The occurrence of changes will be discussed through the perspective and point of view of Srutimala Duara as presented in her book Mindprints of Guwahati.

THE RESULTS OF PILOT TEST OF CYCLIC WATER-FLOODING IN TERRIGENE AND CARBONATE RESERVOIRS

2019 ◽  
pp. 5-12 ◽  
Author(s):  
M.V. Chertenkov ◽  
◽  
E.A. Mamedov ◽  
I.V. Khain ◽  
A.R. Aubakirov ◽  
...  
Keyword(s):  
Carbonate Reservoirs ◽  
Water Flooding ◽  
Pilot Test

Integrated waste water management for a small river basin - a case study

1998 ◽  
Vol 38 (11) ◽  
pp. 87-95
Author(s):  
R. Fenz ◽  
M. Zessner ◽  
N. Kreuzinger ◽  
H. Kroiss
Keyword(s):  
Waste Water ◽  
Water Management ◽  
River Basin ◽  
Rural Areas ◽  
Urban Areas ◽  
Waste Water Treatment ◽  
Point Of View ◽  
Political Issue ◽  
The North ◽  
Waste Water Management

In Austria approximately 70% of the population is connected to sewerage and to biological waste water treatment plants. Whereas the urban areas are already provided with these facilities to a very high extent, effort is still needed in rural areas to meet the requirements of the Austrian legislation. The way, this task should be solved has provoked much controversy. It is mainly the question, whether centralised or decentralised sewage disposal systems are preferable from the ecological and economical point of view, that became a political issue during the last 5 years. The Institute for Water Quality and Waste Management was asked to elaborate a waste water management concept for the Lainsitz River Basin, a mainly rural area in the north of Austria discharging to the Elbe river. Both ecological and economical aspects should be considered. This paper presents the methodology that was applied and the criteria which were decisive for the selection of the final solution.

An Integrated Tourism Model based on Local Identity for Ecological, Historical, and Cultural Tourism

2018 ◽  
Vol 3 (7) ◽  
Author(s):  
Natapon Anusorntharangkul ◽  
Yanin Rugwongwan
Keyword(s):  
Environmental Design ◽  
Cultural Tourism ◽  
Marketing Strategies ◽  
Point Of View ◽  
Local Identity ◽  
Design Elements ◽  
Resources Management ◽  
The North ◽  
North Eastern

The objective of this paper is to study local identity and explore the potential for regional resources management and valuation of the historic environment a case study of the north-eastern provinces of Thailand, for guiding the tourism environmental design elements. The point of view has the goal creative integrate tourism model and product development from local identity embedded localism. This concept advocates the philosophy that tourism businesses must develop products and marketing strategies that not only address the needs of consumers but also safeguard the local identity. 

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