Assessment of Mechanical Behaviour of Rock Cuttings For Drilling Engineering Application

10.2118/94-21 ◽  
1994 ◽  
Author(s):  
M. Amanullah ◽  
J.R. Marsden ◽  
H.F. Shaw
Keyword(s):  
Mechanical Behaviour ◽  
Engineering Application ◽  
Drilling Engineering

scholarly journals An Extensive Review on the Viscoelastic-plastic and Fractural Mechanical Behaviour of ETFE Membranes

2021 ◽  
Author(s):  
Dániel Karádi ◽  
Dezső Hegyi
Keyword(s):  
Present Article ◽  
Mechanical Behaviour ◽  
Constitutive Models ◽  
Engineering Application ◽  
Extensive Review ◽  
Elastic Plastic ◽  
Separate Part ◽  
Ethylene Tetrafluoroethylene

The present article is a review of ETFE (ethylene tetrafluoroethylene) material, with emphasis on the mechanical and fractural behaviour, considering that the material is becoming one of the most promising façades and roof materials due to its advantageous properties. This paper examines the basic chemical makeup of this copolymer and details the elastic-plastic and viscous properties through selected studies in the field. The paper also reviews the available phenomenological, continuum mechanical or rheological constitutive models focusing on the engineering application to the corresponding phenomena. A separate part of the article covers the existing fractural mechanical research on ETFE.

A Novel Approach to Drilling Engineering Sensitivity Analysis and Visualization

2021 ◽  
Author(s):  
Hendrik Suryadi
Keyword(s):  
Sensitivity Analysis ◽  
Engineering Application ◽  
Data Cube ◽  
Hydraulic Calculation ◽  
Engineering Analysis ◽  
Optimal Parameters ◽  
Drilling Engineering ◽  
Design Objects ◽  
Visualization Technology ◽  
Multiple Scenarios

Abstract Well design is a process to integrate multiple designs objects, such as trajectory, wellbore geometry, BHA and drillstring, fluid, and rig specification to work synergically to deliver a successful drilling execution. The method to validate coherency of those various design objects is by performing engineering analysis through modeling, such as torque and drag, hydraulic, vibration, and casing load analysis. Every time any design objects are changed, the engineer needs to rerun engineering analysis calculations to ensure the proposed changes are still acceptable or within equipment specification and design standards. Engineers also need to define the most optimal parameters and designs in order to get the best performance in execution. For this purpose, the engineer spends time performing engineering sensitivity analysis to understand the effect of various parameters on the design KPIs. The challenge with the current drilling engineering application is that engineers need to perform multiple scenarios manually, which is very cumbersome and time-consuming. Time requirements will limit the engineer to perform different kinds of scenarios. Comparing and visualizing the analysis results of multiple scenarios also can be difficult, especially where they involve multiple dimensions. Novel ideas or solutions were introduced in the cloud-based new digital well construction planning applications. The system will automatically create multiple scenarios based on the number of sensitivity parameters. For example, calculating the sensitivity of hydraulic calculation for 5 different flowrates, 5 RPMs, 5 fluid densities, and 5 ROPs will produce 625 scenarios. And each scenario will be calculated for every 100 ft from run start depth to run end depth. All those will be calculated with the power of cloud computation to speed up simulation time and the results stored in the data cube, which is available for business intelligence tools to visualize it. Leveraging the latest development of data visualization technology also brings a new way for an engineer to view multidimensions of plots to quickly get the insight for decisions. This new method of sensitivity analysis and visualization will improve drilling engineer working efficiency to identify potential risks and formulate the optimal parameters for the drilling program. The engineer can easily interact with the plots and understand the effect of multiple parameters on the engineering simulation results. This will give a new user experience for drilling engineers on evaluating drilling engineering sensitivity analysis results and plots in the new digital way of working.

MATHEMATICAL MODELLING OF MECHANICAL BEHAVIOUR OF CELLULOSE-BASED FIBRES EXPOSED TO GAMMA RAYS AND HYDROTHERMAL TREATMENT

2015 ◽  
Vol 14 (3) ◽  
pp. 601-605 ◽  
Author(s):  
Cristina M. Ursescu ◽  
Angelica Olaru ◽  
Teodor Malutan. ◽  
Maria Geba ◽  
Corina Malutan
Keyword(s):  
Mathematical Modelling ◽  
Hydrothermal Treatment ◽  
Gamma Rays ◽  
Mechanical Behaviour

REKAYASA NILAI HARGA PEMBUATAN TERHADAP EFEKTIFITAS PENGGUNAAN BAHAN PADA PEMBANGUNAN PERUMAHAN TIRTO PENATARAN ASRI TIPE 70/135 KECAMATAN NGLEGOK KABUPATEN BLITAR

2017 ◽  
Vol 7 (1) ◽  
pp. 43-52
Author(s):  
Mochamad Tamim Ma’ruf
Keyword(s):  
Engineering Application ◽  
Cost Savings ◽  
Comparison Method ◽  
Value Engineering ◽  
Design Work ◽  
Housing Projects ◽  
Initial Design ◽  
A Value ◽  
The Cost ◽  
Design Proposal

One-solving methods and techniques necessary to avoid inefficiencies and not economic costs as well as reduce the cost of housing construction is the method of Value Engineering. Value engineering is a method and cost control techniques to analyze a function to its value at the lowest cost alternative (most economical) without reducing the quality desired.At the writing of this study used a comparison method by comparing the initial design to the design proposal of the author. In the housing projects Upgrading Tirto Penataran Asri type 70, the application of Value Engineering conducted on the job a couple walls and roofs pair by replacing some work items with a more economical alternative but does not change the original function and high aesthetic level and still qualify safe. For that performed the step of determining a work item, the alternative stage, the analysis stage, and the stage of recommendations to get a Value Engineering application and cost savings against the wall a couple of work items and partner roof.The proposed design as compared to the initial design. Work items discussed was the work of a couple wall having analyzed obtained savings of Rp. 2,747,643.56 and the work of the roof pair obtained savings of Rp. 2,363,446.80. Thus the total overall savings gained is Rp 5,111,090.36 or savings of 0048%.

Sign in / Sign up

Export Citation Format

Share Document