scholarly journals Ensuring fire safety during the operation of oil and gas equipment based on the results of compact specimens tests

2021 ◽  
Vol 2094 (5) ◽  
pp. 052014
Author(s):  
G Kh Samigullin ◽  
L G Samigullina
Keyword(s):  
Experimental Data ◽  
Fire Safety ◽  
Oil And Gas ◽  
Test Method ◽  
Analytical Dependence ◽  
Safe Operation ◽  
Degree Of Damage ◽  
Specific Fracture ◽  
Fracture Work

Abstract The paper considers the application of the test method of compact specimens to assess the degree of damage of steel elements of oil and gas equipment. According to experimental data, an analytical dependence was obtained linking the degree of damage to the index of the specific fracture work, intended to assess the possibility of safe operation of explosive and fire-hazardous equipment.

BIM TECHNOLOGY AS AN ELEMENT OF MODERN CONSTRUCTION

2021 ◽  
pp. 27-31
Author(s):  
A. Nikolayeva ◽  
O. Gorbunova
Keyword(s):  
Design Process ◽  
Fire Safety ◽  
Objective Assessment ◽  
Safe Operation ◽  
Safety Requirements ◽  
Software Products ◽  
Relevant Today ◽  
Speed Up ◽  
Under Construction ◽  
Very High

When designing and implementing BIM technologies, it is of particular importance to take into account fire safety requirements to eliminate errors in the decisions made, as well as for safe operation in the future. This topic is very relevant today and the need for compliance with fire safety requirements is very high. To solve these problems, the use of modern software products, such as Autodesk Revit, can play a huge role. The use of such programs makes it possible to significantly speed up the design process of all systems of the building under construction, as well as to develop an information model in detail, which will allow an objective assessment of accidents and provide objective information about them. These technologies make it possible to fully design buildings and structures, having calculated all the processes, to provide the most effective solutions at all stages of the project, which reduces costs and reduces the time of commissioning of the object. The article reveals the concept of BIM technologies, their main advantages, and application experience.

Safe operation of engineering structures in the oil and gas industry

2017 ◽  
Vol 46 ◽  
pp. 289-295 ◽  
Author(s):  
A.V. Yavorskyi ◽  
M.O. Karpash ◽  
L.Y. Zhovtulia ◽  
L.Ya. Poberezhny ◽  
P.O. Maruschak
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Safe Operation ◽  
Engineering Structures ◽  
Gas Industry

scholarly journals Constraining the accuracy of flux estimates using OTM 33A

2020 ◽  
Vol 13 (1) ◽  
pp. 341-353 ◽  
Author(s):  
Rachel Edie ◽  
Anna M. Robertson ◽  
Robert A. Field ◽  
Jeffrey Soltis ◽  
Dustin A. Snare ◽  
...  
Keyword(s):  
Environmental Protection Agency ◽  
Oil And Gas ◽  
Flux Measurement ◽  
Methane Emissions ◽  
Test Method ◽  
Release Rates ◽  
Multiple Points ◽  
Emission Fluxes ◽  
Site Access ◽  
Flux Measurements

Abstract. Other Test Method 33A (OTM 33A) is a near-source flux measurement method developed by the Environmental Protection Agency (EPA) primarily used to locate and estimate emission fluxes of methane from oil and gas (O&G) production facilities without requiring site access. A recent national estimate of methane emissions from O&G production included a large number of flux measurements of upstream O&G facilities made using OTM 33A and concluded the EPA National Emission Inventory underestimates this sector by a factor of ∼2.1 (Alvarez et al., 2018). The study presented here investigates the accuracy of OTM 33A through a series of test releases performed at the Methane Emissions Technology Evaluation Center (METEC), a facility designed to allow quantified amounts of natural gas to be released from decommissioned O&G equipment to simulate emissions from real facilities (Fig. 1). This study includes test releases from single and multiple points, from equipment locations at different heights, and spanned methane release rates ranging from 0.16 to 2.15  kg h−1. Approximately 95 % of individual measurements (N=45) fell within ±70 % of the known release rate. A simple linear regression of OTM 33A versus known release rates at the METEC site gives an average slope of 0.96 with 95 % CI (0.66,1.28), suggesting that an ensemble of OTM 33A measurements may have a small but statistically insignificant low bias.

scholarly journals Strain-Life Assessment of Grainex Mar-M 247 for NASA’s Turbine Seal Test Facility

2004 ◽  
Author(s):  
Irebert R. Delgado ◽  
Gary R. Halford ◽  
Bruce M. Steinetz ◽  
Clare M. Rimnac
Keyword(s):  
Experimental Data ◽  
High Temperature ◽  
High Speed ◽  
Life Assessment ◽  
Current Work ◽  
Test Facility ◽  
Safe Operation ◽  
Jet Engine ◽  
Inspection Interval ◽  
Bolt Holes

NASA’s Turbine Seal Test Facility is used to test air-to-air seals for use primarily in advanced jet engine applications. Combinations of high temperature, high speed, and high pressure limit the disk life, due to the concern of crack initiation in the bolt holes of the Grainex Mar-M 247 disk. The primary purpose of this current work is to determine an inspection interval to ensure safe operation. The current work presents high temperature fatigue strain-life data for test specimens cut from an actual Grainex Mar-M 247 disk. Several different strain-life models were compared to the experimental data including the Manson-Hirschberg Method of Universal Slopes, the Halford-Nachtigall Mean Stress Method, and the Modified Morrow Method. The Halford-Nachtigall Method resulted in only an 18% difference between predicted and experimental results. Using the experimental data at a −99.95% prediction level and the presence of 6 bolt holes it was found that the disk should be inspected after 665 cycles based on a total strain of 0.5% at 649°C.

scholarly journals An Improved CO2-Crude Oil Minimum Miscibility Pressure Correlation

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Hao Zhang ◽  
Dali Hou ◽  
Kai Li
Keyword(s):  
Experimental Data ◽  
Crude Oil ◽  
Relative Error ◽  
Oil And Gas ◽  
Empirical Correlation ◽  
Volatile Components ◽  
Absolute Relative Error ◽  
Minimum Miscibility Pressure ◽  
New Correlation ◽  
Average Absolute Relative Error

Minimum miscibility pressure (MMP), which plays an important role in miscible flooding, is a key parameter in determining whether crude oil and gas are completely miscible. On the basis of 210 groups of CO2-crude oil system minimum miscibility pressure data, an improved CO2-crude oil system minimum miscibility pressure correlation was built by modified conjugate gradient method and global optimizing method. The new correlation is a uniform empirical correlation to calculate the MMP for both thin oil and heavy oil and is expressed as a function of reservoir temperature, C7+molecular weight of crude oil, and mole fractions of volatile components (CH4and N2) and intermediate components (CO2, H2S, and C2~C6) of crude oil. Compared to the eleven most popular and relatively high-accuracy CO2-oil system MMP correlations in the previous literature by other nine groups of CO2-oil MMP experimental data, which have not been used to develop the new correlation, it is found that the new empirical correlation provides the best reproduction of the nine groups of CO2-oil MMP experimental data with a percentage average absolute relative error (%AARE) of 8% and a percentage maximum absolute relative error (%MARE) of 21%, respectively.

Strain Analysis of Oil and Gas Pipeline with Dents Based on ILI Data

2016 ◽  
Vol 853 ◽  
pp. 372-376
Author(s):  
Zheng Qiang Lei ◽  
Jian Chen ◽  
Fu Xiang Wang ◽  
Ting Wang ◽  
Li Jian Zhou
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Oil And Gas ◽  
Strain Analysis ◽  
Gas Pipeline ◽  
Safe Operation ◽  
Buried Pipe ◽  
Strain Calculation ◽  
Acceptable Range ◽  
Integrity Analysis

Dents in an oil and gas pipeline can be detected by In-line-Inspection (ILI), and structure integrity analysis of the pipe with theses reported dents is important for the safe operation. Strain analysis of the dented pipe is a way of fine assessment and ASME B31.8 has established the strain assessment code and its acceptable range. However, the method of strain assessment is rarely used due to the difficulty of strain calculation for a buried pipe. In this study, features of ILI data are investigated to elaborate the necessary of filtering analysis for strain analysis of the dent with ILI data. Then typical filtering methods are used to smooth the ILI data, and strain analysis are carried out with the smoothed data to study the practicability of strain assessment. Profile and strain of a dent in D813 pipe were obtained by Finite Element Method (FEM). Then different filtering methods were used to smooth the simulated ILI data of the dent which were selected from FEM profile. Strain of the dent were also calculated by smoothed data with the latest ASME B31.8 code, and compared with it from FEM at last to prove the feasibility and validity of the filtering methods with ASME B31.8 code.

Test Method for Electronic Device on Condition of Small Sampling

2013 ◽  
Vol 347-350 ◽  
pp. 525-528
Author(s):  
Ze Cheng ◽  
Zhao Long Xuan ◽  
Wei Wang ◽  
Mao Sen Hao
Keyword(s):  
Experimental Data ◽  
Quality Assessment ◽  
Prior Information ◽  
Electronic Device ◽  
Electronic Devices ◽  
Test Sample ◽  
Test Method ◽  
Bayes Method ◽  
Testing Method ◽  
Quality Testing

The traditional quality testing method does not apply for the new electronic device which have characters that high-value and small-count, take advantage of the small sampling theory, we can reduce the number of test sample significantly by using the Bayes method. In the processing of the experimental data, we can improve the accuracy of the quality assessment of electronic devices by using of the Bayes method and make full use the prior information.

A Comparative Analysis and Evaluation of Model Selection Criteria

2017 ◽  
Author(s):  
Ahmed H. Kamel ◽  
Ali S. Shaqlaih ◽  
Arslan Rozyyev
Keyword(s):  
Experimental Data ◽  
Model Selection ◽  
Selection Criteria ◽  
Oil And Gas ◽  
Information Criterion ◽  
Oil And Gas Industry ◽  
Absolute Error ◽  
Ongoing Research ◽  
Model Selection Criteria ◽  
Innovative Strategy

The ongoing research for model choice and selection has generated a plethora of approaches. With such a wealth of methods, it can be difficult for a researcher to know what model selection approach is the proper way to proceed to select the appropriate model for prediction. The authors present an evaluation of various model selection criteria from decision-theoretic perspective using experimental data to define and recommend a criterion to select the best model. In this analysis, six of the most common selection criteria, nineteen friction factor correlations, and eight sets of experimental data are employed. The results show that while the use of the traditional correlation coefficient, R2 is inappropriate, root mean square error, RMSE can be used to rank models, but does not give much insight on their accuracy. Other criteria such as correlation ratio, mean absolute error, and standard deviation are also evaluated. The Akaike information criterion, AIC has shown its superiority to other selection criteria. The authors propose AIC as an alternative to use when fitting experimental data or evaluating existing correlations. Indeed, the AIC method is an information theory based, theoretically sound and stable. The paper presents a detailed discussion of the model selection criteria, their pros and cons, and how they can be utilized to allow proper comparison of different models for the best model to be inferred based on sound mathematical theory. In conclusion, model selection is an interesting problem and an innovative strategy to help alleviate similar challenges faced by the professionals in the oil and gas industry is introduced.

LONG ISLAND POINT FRACTIONATION PLANT FACILITIES LIFE EXTENSION

2007 ◽  
Vol 47 (1) ◽  
pp. 301
Author(s):  
G.R. Keen ◽  
M.G. Sethi
Keyword(s):  
Oil And Gas ◽  
Long Island ◽  
Life Extension ◽  
Safe Operation ◽  
Design Life ◽  
Oil And Gas Resources ◽  
High Standards ◽  
Fractionation Plant ◽  
And Control

ExxonMobil Australia Pty Ltd’s subsidiary, Esso Australia Resources Pty Ltd (ExxonMobil), and BHP Billiton jointly own and operate an LPG fractionation facility at Long Island Point, near Hastings in Victoria. This facility began operating in 1970 as part of the overall development of Gippsland oil and gas resources. The facility had a nominal design life of 30 years; however, the facility will be required to operate for many more years, given the significant gas reserves remaining in Bass Strait. A plan was developed to identify and progress plant facility upgrades to ensure continued, safe operation to life end. Nine separate projects with a total value in excess of A$250 million were developed and are now in various stages of progress. The key projects include: refrigerated LPG storage tank refurbishment, fire system upgrade, a new control room and control system, and plant emergency shutdown system upgrades. These projects focus on achieving high standards of safe operations and long-term reliability through application of advances in technology to ready the facilities for their remaining life.

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