Research on the Mobility of Polymer Flooding System for Xinjiang Conglomerate Reservoirs

2014 ◽  
Vol 960-961 ◽  
pp. 240-244
Author(s):  
Yun Qiang Wu ◽  
Qing Xiang Lou ◽  
Xiao Bin Nie ◽  
Yi Qiang Li ◽  
Jia Nan Xiang ◽  
...  
Keyword(s):  
Polymer Solution ◽  
Polymer Flooding ◽  
Site Formation ◽  
Flow Properties ◽  
Pore Throat ◽  
Injection Parameters ◽  
Reservoir Permeability ◽  
Set Up ◽  
The Right ◽  
Flow Experiments

The conglomerate reservoir is provided with strong heterogeneity and complex pore structure. To study the matching relationship between polymer flooding system and pore throat of the conglomerate reservoir and set up the flow matching relationship plate, this paper conducted natural core flow experiments at the true flow rate of the site formation based on constant pressure flooding method, considering the shear of the borehole and the formation. And several suitable polymers for different reservoirs permeability were given. The experimental results indicated that a positive correlation between the flow properties and the viscosity of the polymer solution, but a negative correlation between the mobility and the permeability of reservoir. Such as the natural core with the permeability = 30×10-3μm2 was suitable for the viscosity≤16.0 mPa.s of the polymer solution in the formation, the natural core with the permeability = 60×10-3μm2 was suitable for the viscosity≤35.2mPa.s of the polymer solution and the natural core with the permeability = 120×10-3μm2 was suitable for the viscosity≤102.4mPa.s of the polymer solution. Using compatibility relationship, quickly and easily choose the right injection parameters of the polymer based on the reservoir permeability, providing a theoretical basis for program preparation and parameters adjustment of the polymer flooding.

Pressure Response of Polymer Flooding Reservoir by Considering Diffusion and Conduction Behaviors

2012 ◽  
Vol 152-154 ◽  
pp. 369-375
Author(s):  
Xiang Rong Nie ◽  
Shi Qing Cheng ◽  
Yong Jie Zhao ◽  
Ying Zhang
Keyword(s):  
Polymer Solution ◽  
Newtonian Fluid ◽  
Polymer Flooding ◽  
Pressure Response ◽  
Pressure Data ◽  
Power Law Fluid ◽  
Response Curves ◽  
Flow Models ◽  
Improve Analysis ◽  
Set Up

A polymer solution is classified as non-Newtonian Fluid. The results of pressure data analysis for polymer flooding reservoirs would be inaccurate when generalized using non-Newtonian fluid flow models, which treat polymer solution as power law fluid. To improve analysis results, a study to create new pressure interpretation models for polymer flooding reservoirs is needed. First, this study presents a new viscosity model by considering diffusion and conduction. Then the model is applied to set up a new model of an injection well located at an infinite polymer flooding reservoir. The modeling solutions have been prepared through numerical iterations. An extended study has been done about the characteristics of the new pressure response curves.

Process design and equipment selection for optimized steam and power concepts – the “zero” process steam sugar factory

2020 ◽  
pp. 40-50
Author(s):  
Boris Morgenroth ◽  
Thomas Stark ◽  
Julian Pelster ◽  
Harjeet Singh Bola
Keyword(s):  
Process Design ◽  
Sugar Industry ◽  
Electrical Power ◽  
Power Requirement ◽  
Equipment Selection ◽  
Good Potential ◽  
Set Up ◽  
The Right ◽  
Key Aspects ◽  
Steam Drying

Optimization of process steam requirement in order to maximize sugar recovery and export power along with manpower optimization is a must for sugar factories to survive under difficult conditions and to earn additional revenues. The process steam demand of greenfield and revamped plants has been reduced to levels of 32–38% from originally more than 50% steam on cane in the case of the brownfield plants. In addition, significant improvement in the power requirement of the plants has been achieved. Bagasse drying offers a good potential to improve the power export. Different available concepts are compared with a focus on bagasse steam drying and low temperature bagasse drying. In order to set up an optimized highly efficient plant or to optimize an existing plant to achieve competitive benchmarks, good process design and the right equipment selection are very important. Experience has been gained with multiple stage or double effect crystallization in the beet sugar industry offering further steam optimization potential. Vapour recompression is also an option to substitute live steam by electrical power. This even provides options to reduce the steam demand from the power plant for the sugar process down to zero. Key aspects concerning the process design and equipment selection are described.

Method for drawing forest maps by means of an office computer

1970 ◽  
Vol 22 ◽  
Author(s):  
R. Goossens ◽  
J. De Schuyter
Keyword(s):  
Classical Method ◽  
Similar Form ◽  
Code Number ◽  
Growing Stock ◽  
Forest Maps ◽  
Set Up ◽  
The Right ◽  
Computer Unit ◽  
Fixed Network

In  this article, we tried to perform the drawing of forest maps, together with  the calculations involved, automatically by means of relatively simple aids.      The computer unit used is an office computer Olivetti P203. As an example  the growing stock (in m3/ha) was mapped out. The proper inventory in the field is done  according to the classical method by means of a previously fixed network of  squares (70,7 m x 70,7 m), which corresponds to two plots a ha.     The quantity which is measured and mapped out (in this case the growing  stock) is in a similar form not very useful in mapping. Therefore a division  in classes (Ku) numbered from 0 to 9, is set up. An appropriate program  calculates for a certain number of points within this elementary square, to which  class they have to be assigned, whereas the typewriter prints the  corresponding code number on the right place.     Fig. 1 and the formulas (1), (2) and (3) represent the principle o[ the  calculations while fig. 2A and B reproduce the results printed by the  typewriter for a elementary square of respective 1” X 1” and 2” X 2”. The  whole of similar network of squares eventually results in a basical document,  on which the existing forest map with an adapted scale is laid (see appendix  3) and the class limits are drawn.     If desirable, the scale may be adapted when the forest map under discussion  is definitely reproduced.

New Mexico

2017 ◽  
Author(s):  
David K. Jones
Keyword(s):  
New Mexico ◽  
Board Of Directors ◽  
The State ◽  
Governance Model ◽  
The Board Of Directors ◽  
Set Up ◽  
The Right

The fight over an exchange had a very different dynamic in New Mexico because there were no loud voices on the right calling for the state to reject control. Republican Governor Susanna Martinez supported retaining control, but strongly preferred a governance model that allowed insurers to serve on the board of directors and limited the degree of oversight by the board on the types of plans that could be sold on the exchange. Governor Martinez vetoed legislation in 2011 that would have set up a different model of an exchange. Institutional quirks meant the legislature did not have the opportunity to weigh in again for two years, until 2013. By this point it was too late and the state had to rely on the federal website despite passing legislation to run its own exchange.

Intelligent diagnosis and analysis of brain lymphoma based on imaging features

2021 ◽  
pp. 1-11
Author(s):  
Yipu Mao ◽  
Muliang Jiang ◽  
Fanyu Zhao ◽  
Liling Long
Keyword(s):  
Imaging Techniques ◽  
Experimental Studies ◽  
Diagnostic Value ◽  
Imaging Features ◽  
Flow Properties ◽  
Brain Lymphoma ◽  
Diagnosis And Prognosis ◽  
Primary Brain Lymphoma ◽  
Set Up ◽  
Prognosis Evaluation

Currently, DSC has been extensively studied in the diagnosis, differential diagnosis and prognosis evaluation of brain lymphoma, but it has not obtained a uniform standard. By combining DSC imaging features, this study investigated the imaging features and diagnostic value of several types of tumors such as primary brain lymphoma. At the same time, this study obtained data from brain lymphoma patients by data collection and set up different groups to conduct experimental studies to explore the correlation between IVIM-MRI perfusion parameters and DSC perfusion parameters in brain lymphoma. Through experimental research, it can be seen that the combination of two perfusion imaging techniques can more fully reflect the blood flow properties of the lesion, which is beneficial to determine the nature of the lesion.

Centros Ltd—A Complete U-Turn in the Right of Establishment for Companies?

2000 ◽  
Vol 49 (3) ◽  
pp. 621-642 ◽  
Author(s):  
Anne Looijestijn-Clearie
Keyword(s):  
United Kingdom ◽  
Member State ◽  
European Court Of Justice ◽  
The United Kingdom ◽  
Court Of Justice ◽  
European Court ◽  
Registered Office ◽  
Set Up ◽  
The Right ◽  
A Company

InCentros Ltd and Erhvers-og Selskabsstyrelesen (hereinafter Centros),1 the European Court of Justice ruled that it is contrary to Article 52 (now Article 432) and Article 58 (now Article 48) of the EC Treaty for the authorities of a member State (in casu Denmark) to refuse to register a branch of a company formed under the law of another member State (in casu the United Kingdom) in which it has its registered office, even if the company concerned has never conducted any business in the latter State and intends to carry out its entire business in the State in which the branch is to be set up. By avoiding the need to form a company there it would thus evade the application of the rules governing the provision for and the paying-up of a minimum share capital in force in that State. According to the Court, this does not, however, prevent the authorities of the member State in which the branch is to be set up from adopting appropriate measures for preventing or penalising fraud, either with regard to the company itself, if need be in co-operation with the member State in which it was formed, or with regard to its members, where it has been determined that they are in fact attempting, by means of the formation of a company, to evade their obligations towards creditors established in the territory of the member State of the branch.

scholarly journals Imaging the Subsurface: How Different Visualizations of Cross-sections Affect the Sense of Uncertainty

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Ane Bang-Kittilsen ◽  
Terje Midtbø
Keyword(s):  
Cross Sections ◽  
Open Data ◽  
Question Mark ◽  
Reference Information ◽  
Geological Information ◽  
Crucial Information ◽  
Set Up ◽  
Web Experiment ◽  
The Right ◽  
Visualization Techniques

AbstractGeologists struggle to communicate the uncertainty that arise when mapping and interpreting the geological subsurface. Today, open data sharing policies make new value of geological information possible for a broader user group of non-experts. It is crucial to develop standard methods for visualizing uncertainty to increase the usability of geological information. In this study, a web experiment was set up to analyze whether and how different design choices influence the sense of uncertainty. Also, questions about the intuitiveness of symbols were asked. Two-hundred ten participants from different countries completed the experiment, both experts and non-experts in geology. Traditional visualization techniques in geology, like dashed lines, dotted lines and question mark, were tested. In addition, other visualizations were tested, such as hatched area and variations of symbol size, zoom levels and reference information. The results show that design choices have an impact on the participants’ assessment of uncertainty. The experts inquire about crucial information if it is not present. The results also suggest that when visualizing uncertainty, all the elements in the representation, and specifically the line and area symbols that delineate and colour the features, must work together to make the right impression.

Constitutional Law in 1942–1943: The Constitutional Decisions of the Supreme Court of the United States in the October Term, 1942

1944 ◽  
Vol 38 (2) ◽  
pp. 266-288
Author(s):  
Robert E. Cushman
Keyword(s):  
United States ◽  
Supreme Court ◽  
West Coast ◽  
The United States ◽  
Japanese American ◽  
Circuit Court ◽  
Court Of Appeals ◽  
The Supreme Court ◽  
Set Up ◽  
The Right

On February 15, 1943, Wiley B. Rutledge, Jr., a judge of the United States Circuit Court of Appeals for the District of Columbia, took the seat on the Supreme Court vacated by the resignation in October, 1942, of Mr. Justice Byrnes. There were no other changes in the Court's personnel. Disagreement among the justices abated somewhat. In only a dozen cases of importance did either four or three justices dissent, as against some thirty cases in the last term. The Court overruled two earlier decisions, both recent; and the reversal in each case was made possible by the vote of Mr. Justice Rutledge.A. QUESTIONS OF NATIONAL POWER1. WAR POWER-CIVIL VERSUS MILITARY AUTHORITYWest Coast Curfew Applied to Japanese-American Citizens. In February, 1942, the President issued Executive Order No. 9066, which authorized the creation of military areas from which any or all persons might be excluded and with respect to which the right of persons to enter, remain in, or leave should be subject to such regulations as the military authorities might prescribe. On March 2, the entire West Coast to an average depth of forty miles was set up as Military Area No. 1 by the Commanding General in that area, and the intention was announced to evacuate from it persons of suspected loyalty, alien enemies, and all persons, aliens and citizens alike, of Japanese ancestry.

scholarly journals Flavour effects in gravitational leptogenesis

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
Rome Samanta ◽  
Satyabrata Datta
Keyword(s):  
Mass Spectrum ◽  
Chemical Potential ◽  
Mass Scale ◽  
Lepton Number ◽  
Type I ◽  
Lepton Asymmetry ◽  
Seesaw Mechanism ◽  
Set Up ◽  
The Right ◽  
Lepton Number Violating

Abstract Within the Type-I seesaw mechanism, quantum effects of the right-handed (RH) neutrinos in the gravitational background lead to an asymmetric propagation of lepton and anti-leptons which induces a Ricci scalar and neutrino Dirac-Yukawa coupling dependent chemical potential and therefore a lepton asymmetry in equilibrium. At high temperature, lepton number violating scattering processes try to maintain a dynamically generated lepton asymmetry in equilibrium. However, when the temperature drops down, the interactions become weaker, and the asymmetry freezes out. The frozen out asymmetry can act as a pre-existing asymmetry prior to the standard Fukugita-Yanagida leptogenesis phase (Ti ∼ Mi, where Mi is the mass of ith RH neutrino). It is then natural to consider the viability of gravitational leptogenesis for a given RH mass spectrum which is not consistent with successful leptogenesis from decays. Primary threat to this gravity-induced lepton asymmetry to be able to successfully reproduce the observed baryon-to-photon ratio is the lepton number violating washout processes at Ti ∼ Mi. In a minimal seesaw set up with two RH neutrinos, these washout processes are strong enough to erase a pre-existing asymmetry of significant magnitude. We show that when effects of flavour on the washout processes are taken into account, the mechanism opens up the possibility of successful leptogenesis (gravitational) for a mass spectrum M2 » 109GeV » M1 with M1 ≳ 6.3 × 106 GeV. We then briefly discuss how, in general, the mechanism leaves its imprints on the low energy CP phases and absolute light neutrino mass scale.

scholarly journals Who is the right person to look after the mentally retarded?

Curationis ◽  
1980 ◽  
Vol 3 (3) ◽  
Author(s):  
V. Ehlers
Keyword(s):  
National Health Service ◽  
Health Service ◽  
Residential Care ◽  
National Health ◽  
Mentally Retarded ◽  
Nursing Profession ◽  
Financial Resources ◽  
Mentally Handicapped ◽  
Set Up ◽  
The Right

A committee was set up in Britain in 1975 under the Chairmanship of Mrs Peggy Jay to look into the staffing of mental handicapped residential care in the National Health Service. Part of the task was to consider the Briggs Committee’s recommendation that “… a new caring profession for the mentally handicapped should emerge gradually”. The findings and recommendations of the committee were however radical and far-reaching, involving an enormous shift in financial resources and causing much concern and outcry from the nursing profession which considered the new category of care given as a threat to their existence.

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