A NEW SYSTEM OF TOOLS FOR BETTER CONTROL AND INTERPRETATION OF DRILL STEM TESTS

1969 ◽  
Vol 9 (1) ◽  
pp. 153
Author(s):  
JOHN EAST

The Multi-Flow Evaluator, MFE, is a new system of tools providing an original approach in drill stem testing. It improves control during the testing operation and gives a more accurate evaluation of the fluid recovered while providing additional pressure information for reservoir analysis.The tools are operated entirely by up and down motion of the drill stem. This up and down operation provides a positive means of control and offers easily observed surface indications of tool operating position. An unlimited number of shut- in and flow periods may be taken with this tool while in the hole.The key to the success of the MFE system of tools is the safety seal packer. Until this development, operation of the tools by up and down motion only, had proven unreliable. The success ratio of the MFE now exceeds the ratio achieved by conventional tools.The equipment includes a 2500 cc chamber In which a representative sample of the flowing formation fluid Is trapped at the end of the last flow period and brought to the surface under pressure. The sample can be evaluated at the well site or transferred under pressure for laboratory analysis.The sampling feature of the tool allows a sample to be obtained from a reservoir which has suffered minimum Influence from production. A representative sample can be obtained for laboratory or empirical analysis by employing a testing technique to minimise draw-down during flow periods.Interpretation methods to take advantage of this additional information are presented and supported by actual field examples.

2014 ◽  
Vol 941-944 ◽  
pp. 2239-2242
Author(s):  
Feng Guo ◽  
Shang Kun Ren

With the initial permeability testing technique, early evaluation on stress concentration and fatigue damage can be realized by measuring initial permeability of the ferromagnetic material. The variation of detection signals with initial permeability is researched via the ANSYS FEM simulation and the tensile testing of 45 steel. The results indicate that the detection signals have a linear relation with initial permeability of the ferromagnetic material. It is seen that initial permeability testing technology can give effective and accurate evaluation of the ferromagnetic material.


Author(s):  
D.J. Thomson ◽  
M.J. Haines ◽  
S.B. Cammell ◽  
M.S. Dhanoa

The Starch Equivalent (SE) system devised by Kellner for expressing the energy requirements of ruminants and the energy value of feeds was used in Britain from 1912. Metabolizable energy (ME) was proposed (Agricultural Research Council, 1965) and adopted (MAFF, DAFS and DANI, Technical Bulletin 33, 197S), as a basis for a new system relating diet to the energy requirements of animals. Additional information was incorporated in the extensive Technical Review (The Nutrient Requirements of Ruminant Livestock, 1980). Metabolizable energy was retained, and animal performance it was claimed, was predicted more precisely with ME than SE. Results presented in this paper are for the comparison, and interpretation, of observed and predicted (Technical Bulletin 33) rates of gain, and other components of the ME system, for growing lambs and cattle fed forage and mixed forage and concentrate diets.


2021 ◽  
Vol 11 (1) ◽  
pp. 65-78
Author(s):  
Ivana Tonković Pražić

This research sought to explore consumer decision-making styles of buyers in the car market in the Republic of Croatia. Additional aim of this research was also to add on the literature on consumer decision-making styles to further the understanding of the specificity of consumer behavior when buying a car. The research was conducted with in-depth interviews with car buyers using a non-probability purposive sample. Furthermore, interviews were conducted with car dealership employees who were consulted for additional information. The results indicate that car buyers in the Republic of Croatia make their car buying decisions based on specific consumer decision-making styles. Based on the relevant literature and empirical research, ten consumer decision-making styles specific to car buyers in the Republic of Croatia were identified: price sensitivity, susceptibility to the influence of others, interest in automobiles, involvement in car purchase, brand loyalty, and brand, quality, aesthetics, innovation and functionality consciousness. The research was conducted on a sample of respondents from the Croatian market, so the results cannot be applied to other markets. Also, the study was conducted on a smaller and a non-representative sample, so the results should be verified on a larger and representative sample.


2018 ◽  
Vol 115 (11) ◽  
pp. 2584-2589 ◽  
Author(s):  
Victoria Stodden ◽  
Jennifer Seiler ◽  
Zhaokun Ma

A key component of scientific communication is sufficient information for other researchers in the field to reproduce published findings. For computational and data-enabled research, this has often been interpreted to mean making available the raw data from which results were generated, the computer code that generated the findings, and any additional information needed such as workflows and input parameters. Many journals are revising author guidelines to include data and code availability. This work evaluates the effectiveness of journal policy that requires the data and code necessary for reproducibility be made available postpublication by the authors upon request. We assess the effectiveness of such a policy by (i) requesting data and code from authors and (ii) attempting replication of the published findings. We chose a random sample of 204 scientific papers published in the journal Science after the implementation of their policy in February 2011. We found that we were able to obtain artifacts from 44% of our sample and were able to reproduce the findings for 26%. We find this policy—author remission of data and code postpublication upon request—an improvement over no policy, but currently insufficient for reproducibility.


2021 ◽  
Vol 12 ◽  
Author(s):  
Eberhard Feess ◽  
Jan Feld ◽  
Shakked Noy

Previous research has shown that people care less about men than about women who are left behind. We show that this finding extends to the domain of labor market discrimination: In identical scenarios, people judge discrimination against women more morally bad than discrimination against men. This result holds in a representative sample of the US population and in a larger but not representative sample of Amazon Mechanical Turk (Mturk) respondents. We test if this gender gap is driven by statistical fairness discrimination, a process in which people use the gender of the victim to draw inferences about other characteristics which matter for their fairness judgments. We test this explanation with a survey experiment in which we explicitly hold information about the victim of discrimination constant. Our results provide only mixed support for the statistical fairness discrimination explanation. In our representative sample, we see no meaningful or significant effect of the information treatments. By contrast, in our Mturk sample, we see that providing additional information partly reduces the effect of the victim’s gender on judgment of the discriminator. While people may engage in statistical fairness discrimination, this process is unlikely to be an exhaustive explanation for why discrimination against women is judged as worse.


Author(s):  
Diego Fernández ◽  
Vreixo Formoso ◽  
Fidel Cacheda ◽  
Victor Carneiro

Collaborative Filtering algorithms suffer from the so-called cold-start problem. In particular, when a user has rated few items, recommendations offered by these algorithms are not too accurate. Profile Expansion techniques have been described as a way to tackle this problem without bothering the user with additional information requests by increasing automatically the size of the user profile. Up to now, only collaborative approaches had been proposed for Profile Expansion. However, content-based techniques can also be used. We perform a manual analysis of a movie dataset to analyze how content features behave. According to this analysis, we propose a content-based approach, which is also combined with collaborative information. Concretely, we expose the advantages and disadvantages of the combination with a popularity feature. Moreover, a comparison to pure collaborative approaches is performed. Our approach is evaluated in a new system situation. That is, not only the active user has few ratings, but also most of the users. The results show that content-based information is useful for rating prediction. In addition, recommendations are less personalized as popularity feature acquires more relevance for item selection.


1965 ◽  
Vol 17 (02) ◽  
pp. 207-214 ◽  
Author(s):  
J.A. McAlister ◽  
B.P. Nutter ◽  
M. Lebourg
Keyword(s):  

2013 ◽  
pp. 73-79
Author(s):  
Anita Pierog

The primary objective of my research is to examine and explore the specialties of the civil organizations composition and operation. In my study I describe the results of my research in Hajdú-Bihar County. The results concern to the features of motivation and incentive in civil organizations. Quantitative data from an empirical analysis is used for the research. My questionnaires were measured on a representative sample. The basis of this sample was the County Court of Justice’s website. Thus, my research on managerial tasks included in Hajdú-Bihar County. During the survey I examined the motivation from different sides. First of all, what was the purpose of establishing civil organizations? I also analysed the managers’ motivation. Why they participate in civic activities? Finally, I examined the perception of managers of incentive forms. The general findings beyond the context of the investigations were carried out on the basis of organizational parameters and characteristics of the interviewees. The results of my research arise from an analysis of data I collected. Civil organizations are established for a well-defined task or as a way of problem-solving. In terms of internal motivation of managers stated that it was mainly an internal urge and desire to help the cause, participate in the activities of civic organizations. In their motivational activities, the psychological incentives were classified as most effective motivators.


2000 ◽  
Vol 5 (3) ◽  
pp. 215-219 ◽  
Author(s):  
Perry N Fuchs

In 1968, Melzack and Casey published a pivotal paper in which they described a model of the sensory, motivational and cognitive determinants of pain. Much of Ronald Melzack's career has been dedicated to exploring this complex relationship. Of primary importance is the influence that Ron has had on the development of some of the current research interests of the present author. For instance, Ron's theoretical approach provided the underpinnings for the development of an additional behavioural testing technique in rat models of nociception that has been recently developed in the author's laboratory. The test is based on the assumption that escape and avoidance of a stimulus are clear indications that the stimulus is aversive. It is proposed that behavioural test paradigms based on this approach provide additional information beyond the traditional measures of stimulus-evoked reflexive responses. With these tests, the underlying assumption that different aspects of pain are processed by different neural substrates can be tested.


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