Endpoint Mobility Ratios for Vertical and Horizontal Wells with Incidence of Scale Deposition

One of the most difficult and profit hurting problems found in the oil field is the build-up of scale deposits in the well bore, production string, flow lines and even in storage tanks. These deposits act as a restriction during build-up in the wellbore causing a gradual decrease in production and, in many cases, as a solid barrier for wellbore fluid flow. This paper presents an analytical model based on the existing thermodynamic model showing the endpoint mobility ratios for both vertical and horizontal wells with the incidence of scale precipitation and deposition at the near wellbore region during water flooding. The results revealed that Endpoint mobility ratio for a vertical well with radial flow approaches unity “1” faster than for the horizontal well with elliptical flow. And horizontal wells are good candidates for managing scale precipitation and deposition during waterflooding

WALL STREET HAS IT WRONG: THE TRUE IMPACT OF THE MONEY SUPPLY ON PRICE INDEXES

The purpose of this particular paper is to analyze the impact of the money supply on consumer price indexes within the U.S. The intent of this paper is to probe the impact of the M1 and M2 money supplies on consumer and producer prices indexes by estimating a multitude of equations taking core CPI, general CPI, core PPI, commodity PPI, and personal consumption expenditures as a measure of inflation, with M1, and M2 money supply, as explanatory variables. For this analysis, the OLS technique is used to cover time series data from 1980-81 to 2009-10. The results for general CPI, core CPI, core PPI, and PCE, show a positive correlation with the M1 money supply. Commodity PPI however, is negatively correlated with M1. General CPI, core PPI, commodity PPI, and the PCE are positively correlated with M2. Results show that only the cores CPI, general CPI, are positively correlated with the M3 money supply. It may be concluded that the supply of money M1 and M2 affect the core and general price indices in the same way. The central question that this paper attempts to answer is: Do the domestic money supplies have the same effect on both general pricing indexes as they do on the core pricing indexes? The most important revelation within this project is that the M1 money supply affects general CPI stronger than the core CPI, thus contradicting the analysis posited by the equity research analysts on Wall Street

Statistical approach to optimization of the transesterification reaction from sorrel (hibiscus sabdariffa) oil

In an effort to optimize the reaction conditions of biodiesel production from Sorrel seed oil, Response Surface Methodology (RSM) was applied and the effects of reaction temperature, catalyst amount, reaction time and methanol/oil molar ratio, and their reciprocal interactions were ascertained. A total of 30 experimental runs were designed by Central Composite Rotatable Design (CCRD) and carried out. A quadratic polynomial was obtained for predicting the Transesterification process and the ANOVA test showed the model to be significant (p<0.05). The validity of the predicted model was confirmed by carrying out three independent replicates experiments. The actual maximum biodiesel yield obtained was 99.23% (w/w) at methanol/oil molar ratio 6.21, catalyst amount 1.03 (% wt.), reaction temperature 51 oC, and reaction time 63 min. The fuel properties of Hibiscus sabdariffa methylester (HSME) produced were found to be within the ASTM D6751 and DIN EN 14214 biodiesel standards. The fatty acid profile of the HSME revealed that the dominant fatty acids were oleic (58.34%), arachidic (1.55%), palmitic (18.28%) and linoleic (21.19%). Emission assessment revealed 70% reduction of CO at B80, 80% reduction of NO concentration at B40

Sexual networking in Freetown against the background of the AIDS epidemic

West Africa, since the discovery of the HIV virus, has remained relatively unperturbed by the attendant AIDS epidemic sweeping through the other portions of the continent south of Sahara. The low level, of both the reported and the diagnosed cases of the epidemic at the onset, seem to explain the initial lukewarm and sometimes cynical attitude on the part of both the government and the populace. In recent times, however, emerging revelations from research on sexual behaviour in the region seem to be generating greater concerns about the possibility of continued containment of this scourge. So in many West African countries efforts are being made to generate baseline data to help in assessing the risk of this epidemic, given the background knowledge of the sexual behavioural correlates of AIDS gained elsewhere. However, not all the strategic points in this region have had such an inventory carried out or reported. Not only does Freetown, the capital of Sierra Leone, fall into this category, it is also confronted with certain challenges at the regional level, as well as some internal peculiarities which underscore the need for the present inventory

The Menace of Domestic Violence: Improving the Lives of Women in Nigeria

The scourge of domestic violence as well as other forms of violence against women has eaten deep into the fabric of our society creating a lopsided gender balance with the female gender being the greatest victim. Violence has taken different forms ranging from sexual to physical and psychological as well as other forms. This degrades the humanity of the woman in our society. Abusive partners and perpetrators base their actions on superior nature of the male sex, religion, law, custom, economic situation, family pressure, and their behavioural pattern. It is believed that lack of a legal framework universally enforced as well as lack of trained law enforcement officers promotes the violence of women in Nigeria. A proactive legal framework, establishment of confidential and well equipped family courts, training of law enforcement officers, shelters and counselling centres can reduce the abuse of women in Nigeria and across the globe. The physical, sociological and psychological effect of violence against women is unquantifiable. To achieve a fair and balanced society, women must be valued, respected and supported and not battered either by stick or word of mouth

Prevalence of minimal hepatic encephalopathy among patients with chronic liver disease in Ilorin, Nigeria

Background: Minimal Hepatic encephalopathy is the mildest form of Hepatic Encephalopathy which presents with significant cognitive impairment and affectation of activities of daily living. The literature is scanty on the prevalence of minimal hepatic encephalopathy in Nigerians with chronic liver disease.Aim: This study aimed at determining the prevalence of minimal hepatic encephalopathy among patients with chronicliver disease using neuro-psychometric tests.Methods: The study was a hospital-based cross-sectional study carried out at the University of Ilorin Teaching Hospital, Ilorin from February 2015 to February 2016. Chronic liver disease was diagnosed with the presence of peripheral stigmata of liver disease, liver biochemistry, prothrombin time, and sonographic findings in keeping with liver disease. Minimal hepatic encephalopathy was diagnosed using number connection tests-A and B for patients who were educated while Line tracing test and constructional dyspraxia were used for patients without any formal education. Data obtained were analysed using Statistical Package for the Social Sciences (SPSS) version 20 computer software package.Results: Sixty-four patients with chronic liver disease were recruited. The mean age (SD) of the patients was 47.1±14.6 yrs, and the 30-39 and 40-49 yrs age groups each had the highest frequency of 21(32.8%). There were 54(84.4%) males and 10 (15.6%) females. The prevalence of Minimal Hepatic Encephalopathy was 43.8%.Conclusion: The prevalence of Minimal Hepatic Encephalopathy in this study was similar to previous studies. Significant number of patients with minimal HE were in Child-Pugh class B and C.Keywords: Minimal, Hepatic Encephalopathy, Liver Disease, Neuro-psychometric testFunding: Non

Influence of Gender Differences on Usage Patterns of Electronic Information Sources among Undergraduates of Selected Universities in Southwest, Nigeria

This research work investigated the influence of gender differences on usage patterns of electronic information sources among undergraduates in Nigeria. The study adopted a descriptive survey research design. The population was made up of randomly selected undergraduate students of Ekiti State University (EKSU) and University of Ibadan (UI). Data were generated through the use of questionnaire designed to elicit responses from respondents and analysed using descriptive statistics method of frequency counts and percentages. However, out of five hundred (500) copies of questionnaire administered, four hundred and twenty one (421) were returned which represents 84.2% response rate for the study. Findings revealed that there is no basis for gender differentiation in the use of electronic information sources as gender gap in electronic resources usage appeared negligible. However, it was recommended that university libraries in Nigeria should continue to give equal opportunities to both sexes in term of training and orientation on the use of e-resources among other recommendations

Health transition research in Nigeria in the era of the structural adjustment program

Not supplie