Comprehensive Evaluation and Prediction of Geothermal Resources in Liaohe Basin

2012 ◽  
Vol 616-618 ◽  
pp. 116-125
Author(s):  
Shang Ming Shi ◽  
Xiao Xiong Wu ◽  
Pan Zhao ◽  
Dong Kai Huo ◽  
Hua Bin Wei
Keyword(s):  
Comprehensive Evaluation ◽  
Geothermal Water ◽  
Actual Situation ◽  
Geothermal Resources ◽  
Well Production ◽  
The Future ◽  
Single Well ◽  
Liaohe Basin ◽  
Favorable Area ◽  
Head Temperature

Geothermal resources can not be ignored in the new century energy, Through the relevant formula in combination with the actual situation of the Liaohe Basin, by the predication of single well production and well head temperature, Find favorable areas that single well production and wellhead temperature both high. These areas are considered favorable areas for geothermal resources in Liaohe Basin. We carry out comprehensive evaluation of geothermal resources in Liaohe Basin. Finally, the total amount of geothermal resources, the total amount of geothermal water and recoverable geothermal resources in Liaohe Basin were determined and the favorable area for geothermal resources is divided, the total amount of geothermal resources, the total amount of geothermal water and recoverable geothermal resources the favorable area for geothermal resources were predicted.These results provide guarantee for the future exploration and development of geothermal resources.

Mathematical Texts (I): The Mathematical Training of Scribes

2016 ◽  
Author(s):  
Annette Imhausen
Keyword(s):  
Teaching Mathematics ◽  
Actual Situation ◽  
Middle Kingdom ◽  
Old Kingdom ◽  
Mathematical Procedure ◽  
The Future ◽  
Mathematical Problems ◽  
Mathematical Texts

This chapter discusses mathematical texts that originated from the Middle Kingdom. While this may well be caused by the vagaries of preservation, it might be that it reflects the actual situation, that is, that mathematical texts of the kind that we have from the Middle Kingdom did not exist in earlier periods. With the reestablishment of central power by the king in the Middle Kingdom also came about a complete new organization of the administrative apparatus that was designed to be much less independent than it had been at the end of the Old Kingdom. And this may well have entailed the organization of teaching mathematics to the future scribes in a centrally organized style, with prescribed problems and their solutions. The chapter considers extant hieratic mathematical texts, mathematical procedure texts, and types of mathematical problems.

Comprehensive Evaluation Based on AHP-Fuzzy about the Conception of Underground Container Transportation Lines in Shanghai

2011 ◽  
Vol 71-78 ◽  
pp. 175-181 ◽  
Author(s):  
Cheng Zhang ◽  
Si Wei Wang
Keyword(s):  
Transport System ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Actual Situation ◽  
Container Transportation ◽  
Container Transport ◽  
System A ◽  
Transportation Capacity ◽  
Functional Orientation ◽  
Set Up

Through the research and analysis of Shanghai Port Container transportation capacity, we can see that the construction of underground container transport system is important to transfer Shanghai into an international hub. Combined the functional orientation of the concept program of underground container lines with the underground characteristics of the container transport system, a system of evaluation target has been set up. Sorted the concept lines by using AHP-Fuzzy comprehensive evaluation, the result can reflect the actual situation of concept lines objectively, and can also provide optimizational service for the concept program of underground container line.

Dynamic Behavior and Design of Offshore Caissons

1978 ◽  
Vol 18 (05) ◽  
pp. 291-299
Author(s):  
S.T. Hong ◽  
J.C. Brooks
Keyword(s):  
Dynamic Behavior ◽  
Experimental Studies ◽  
Design Procedure ◽  
Operational Experience ◽  
Dynamic Effects ◽  
Free Standing ◽  
Well Production ◽  
Single Well ◽  
Time Required ◽  
Short Time

Abstract Free-standing caissons are used for supporting flare pipes and single-well production platforms. However, caissons tend to be flexible and dynamically sensitive, and the static design practice may not be adequate for this type of practice may not be adequate for this type of structure. To assess motion effect on the integrity of the structural system and to quantify the allowable motion for safe operation on board a caisson platform, analytical and experimental studies of platform, analytical and experimental studies of the dynamic behavior of a caisson structure were conducted and are described here. The analytical simulations agree well statistically with The motion measurements. A caisson design procedure considering dynamic effects was developed Design considerations include ultimate strength failure, fatigue failure, excessive motion, and possible damage during installation. A key feature in an effective caisson design is that the upper part of the caisson should be made as small as possible so that wave loading and the caisson period can be minimized The fatigue design procedure was verified with past caisson operational experience. To illustrate past caisson operational experience. To illustrate the procedure, a flare-pipe support caisson in 185 ft of water was designed and analyzed. Introduction Free-standing caissons are used for supporting flare pipes or single-well production platforms. The attractiveness of a caisson structure lies in the potential economy and the short time required for potential economy and the short time required for fabrication and installation. However, a caisson tends to be flexible, and dynamic effects may increase the design requirements from both strength and functional standpoints. To assess the motion effect on the integrity of the structural system and to quantify the allowable motion level for effective operation on board a caisson platform, analytical and experimental studies of the dynamic behavior of a caisson structure were conducted, and a procedure was formulated for designing a caisson considering dynamic effects. Observations from the experimental data and computer simulations of the caisson behavior are described. Verification of the computer simulation and some useful information for developing and using such simulations as well as practical interpretation of the analytical results practical interpretation of the analytical results also are given. Differences between a static design and a dynamic design are illustrated in an example design of a flare-support caisson in 185 ft water. MOTION MEASUREMENT Motion data were taken from a caisson platform offshore Louisiana. General dimensions of the caisson are shown in Fig. 1. SPEJ P. 291

scholarly journals Performance Evaluation of Multistage Fractured Horizontal Wells in Tight Gas Reservoirs at Block M, Ordos Basin

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 613
Author(s):  
Li Wu ◽  
Jiqun Zhang ◽  
Deli Jia ◽  
Shuoliang Wang ◽  
Yiqun Yan
Keyword(s):  
Ordos Basin ◽  
Horizontal Wells ◽  
Entropy Method ◽  
Field Application ◽  
Tight Sandstone ◽  
Factors Affecting ◽  
Well Production ◽  
Advantages And Disadvantages ◽  
Single Well ◽  
Fractured Horizontal Wells

Block M of the Ordos Basin is a typical low-permeability tight sandstone gas accumulation. To develop these reservoirs, various horizontal well fracturing technologies, such as hydra-jet fracturing, open-hole packer multistage fracturing, and perf-and-plug multistage fracturing, have been implemented in practice, showing greatly varying performance. In this paper, six fracturing technologies adopted in Block M are reviewed in terms of principle, applicability, advantages, and disadvantages, and their field application effects are compared from the technical and economic perspectives. Furthermore, the main factors affecting the productivity of fractured horizontal wells are determined using the entropy method, the causes for the difference in application effects of the fracturing technologies are analyzed, and a comprehensive productivity impact index (CPII) in good correlation with the single-well production of fractured horizontal wells is constructed. This article provides a simple and applicable method for predicting the performance of multi-frac horizontal wells that takes multiple factors into account. The results can be used to select completion methods and optimize fracturing parameters in similar reservoirs.

Pre- and post-conditioning of the heart: an overview of cardioprotective signaling pathways

2020 ◽  
Vol 19 ◽  
Author(s):  
Denise Coutinho de Miranda ◽  
Gabriela de Oliveira Faria ◽  
Milla Marques Hermidorff ◽  
Fernanda Cacilda dos Santos Silva ◽  
Leonardo Vinícius Monteiro de Assis ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Signaling Pathways ◽  
Exponential Growth ◽  
Comprehensive Evaluation ◽  
Therapeutic Agents ◽  
The Other ◽  
Other Hand ◽  
The Future

: Since the discovery of ischemic pre- and post-conditioning, more than 30 years ago, the knowledge about the mechanisms and signaling pathways involved in these processes has significantly increased. In clinical practice, on the other hand, such advancement has yet to be seen. This article provides an overview of ischemic pre-, post-, remote, and pharmacological conditioning related to the heart. In addition, we reviewed the cardioprotective signaling pathways and therapeutic agents involved in the above-mentioned processes, aiming to provide a comprehensive evaluation of the advancements in the field. The advancements made over the last decades cannot be ignored and with the exponential growth in techniques and applications. The future of pre- and post-conditioning is promising.

Smart Healthcare Interventions for Smoking Cessation: A Scoping Review (Preprint)

2020 ◽  
Author(s):  
Yen Ju Liou ◽  
Chun Ying Lee ◽  
Chiou-Mei Lee ◽  
Cheng Hang Wu
Keyword(s):  
Smoking Cessation ◽  
Scoping Review ◽  
Mobile Applications ◽  
Comprehensive Evaluation ◽  
Review Literature ◽  
Future Research ◽  
Smart Healthcare ◽  
Quit Rate ◽  
The Future ◽  
Healthcare Interventions

BACKGROUND Smart healthcare devices are being increasingly employed to support medical services, and evidence has shown promising results in using such tools for smoking cessation, but there has been no scoping review on this topic so far and the trends of research in this area has not been fully examined. This review provides a comprehensive evaluation of research in this area. OBJECTIVE This scoping review aimed to analyze the research trends in this area to speculate on the future of smart health devices for smoking cessation. METHODS The study was based on the methodology of scoping review. Literature searches were done in PubMed, EMBASE, MEDLINE using terms related to smart healthcare. Titles, abstracts, and full reports were reviewed independently by two reviewers. Papers were included if they focused on discussing smart healthcare interventions for smoking cessation. Data were extracted independently by two reviewers. RESULTS Searches identified 3982 references and 25 papers were included in the scoping review. Mobile applications was the most numerous category of studies, making up 56% (n=14) of all studies and this had increased markedly in recent 5 years. We identified 6 types of outcome measures. Besides quit rate, user attitude was the most frequently measured outcome, accounting for 44% (n=11) of the studies. Nine studies targeted special populations other than general adult smokers, nearly half (n=4) of which targeted adolescents or young adults. CONCLUSIONS Besides quit rate, the researchers put most focus on user attitude. Use of mobile applications seem to be the mainstream in the future among smart healthcare interventions for smoking cessation. Future research including more keywords related to smart healthcare interventions is needed for a comprehensive understanding of this field.

Exploring the future hydrology of a Canadian Rockies glacierized catchment and its sensitivity to meteorological forcings

2021 ◽  
Author(s):  
Caroline Aubry-Wake ◽  
John W. Pomeroy
Keyword(s):  
Hydrological Model ◽  
Comprehensive Evaluation ◽  
Subsurface Water ◽  
High Mountain ◽  
Blowing Snow ◽  
Mountain Areas ◽  
Canadian Rockies ◽  
Process Representation ◽  
The Future ◽  
Physically Based

<p>Glacierized mountain areas are witnessing strong changes in their streamflow generation processes, influencing their capacity to provide crucial water resources to downstream environments. Shifting precipitation patterns, a warming climate, changing snow dynamics and retreating glaciers are occurring simultaneously, driven by complex physical feedbacks. To predict and diagnose future hydrological behaviour in these glacierized catchments, a semi-distributed, physically-based hydrological model including both on and off-glacier process representation was applied to Peyto basin, a 21 km2 glacierized alpine catchment in the Canadian Rockies. The model was forced with bias-corrected outputs from a dynamically downscaled, 4-km resolution Weather and Research Forecasting (WRF) simulation, for the 2000-2015 and 2085-2100 period.  The future WRF runs had boundary conditions perturbed using RCP8.5 late century climate.  The simulations show by the end-of-century, the catchment shifts from a glacial to a nival regime. The increase in precipitation nearly compensates for the decreased ice melt associated with glacier retreat, with a decrease in annual streamflow of only 7%. Peak flow shifts from July to June and August streamflow is reduced by 68%. Changes in blowing snow transport and sublimation, avalanching, evaporation and subsurface water storage also contribute to the strong hydrological shift in the Peyto catchment. A sensitivity analysis to uncertainty in forcing meteorology reveals that streamflow volume is more sensitive to variations in precipitation whereas streamflow timing and variability are more sensitive to variations in temperature. The combination of the temperature and precipitation variations caused substantial changes both in the future snowpack and in the streamflow pattern. By including high-resolution atmospheric modelling and unprecedented both on and off-glacier process-representation in a physically-based hydrological model, the results provide a particularly comprehensive evaluation of the hydrological changes occurring in high-mountain environments in response to climate change.</p>

Grey-Hierarchy Relation Analysis and Evaluation of Port Operating Ability

2013 ◽  
Vol 774-776 ◽  
pp. 1847-1852
Author(s):  
Xian Fen Xie ◽  
Bin Hui Wang
Keyword(s):  
Index System ◽  
Large Scale ◽  
Comprehensive Evaluation ◽  
Evaluation Process ◽  
Guangdong Province ◽  
Actual Situation ◽  
Operating Index ◽  
Analysis And Evaluation ◽  
Relation Analysis ◽  
Incidence Analysis

Throughput and berths capacity are two important measures of port operating ability. Based on these two aspects, this paper established port operating index system for Guangdong Province, and made comprehensive evaluation and analysis on 11 large-scale ports in Guangdong. During the evaluation process, the AHP and Gray Incidence Analysis (GIA) methods are combined to exploratory analysis on the port operating ability and development emphasis of each port. The results show that the ranking of throughput aspect or berth capacity are inconsistent with comprehensive ranking result, that is, obvious differences exist between these 11 ports and each of them have their own development priorities, which is reasonable, realistic and in line with the actual situation in Guangdong Province.

The Error Analysis of Water Cut of Crude Oil

2012 ◽  
Vol 591-593 ◽  
pp. 2551-2554
Author(s):  
Jing Xie ◽  
Qiong Liu ◽  
Yan Jiang ◽  
Yu Lin Wang ◽  
Hui Ling Zhu
Keyword(s):  
Error Analysis ◽  
Simple Structure ◽  
Measuring Method ◽  
Oil Well ◽  
Well Production ◽  
Content Ratio ◽  
Single Well ◽  
Water Rate ◽  
Oil Water ◽  
Water Cut

As a key datum in the petrochemical industry, Water content ratio plays an important role in dehydration, storage selling and petroleum refining. According to the oil well production site, this thesis is based on the oil-water mixture’s density to calculate the water-rate in petroleum, carried on the error analysis to this measuring method, and assessed the scope which this metering equipment is suitable. The wellhead drop back pressure device is effective in monitoring oil wells, to achieve the single well production of display, and when the single well is not working properly, you can discover and resolve problems. The system features are simple structure, easy to carry, stability of Measurement and easy maintenance.

Sign in / Sign up

Export Citation Format

Share Document