moving layers
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INFO-TEKNIK ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 173
Author(s):  
Arya Cahya Susilo ◽  
Rohima Sera Afifah ◽  
Eltimeyansi Chrisye Randanan ◽  
Karnila Willard ◽  
Sulardi Sulardi

The problem is that there is no certainty about the production capacity of the wells before evaluating the performance of production wells. The research objective was to describe the condition of oil and gas reserves in production wells and an economic picture of the MBR production resources after the recovery period by moving layers using the perforation method. This study used a used research method with a case study approach, namely the case that occurred in the MBR production well of PT. Medco E&P Tarakan operation area. The results of the evaluation of production capacity after displacement recovery based on the analysis of logging data at a depth of 850 MZ, it is known that the initial oil reserves (OOIP) are 284,304 STB with a recovery factor of 25%. The results of the calculation of the economic indicator for the proposed perforation of work to move layers, the total value of NPV. 15% was obtained in the eighth month in total lifting of 28,466, namely USD 123.561, the payout time for this work was 1.8 months with an IRR of 340% indicating that investment has the potential to provide benefits.





Author(s):  
Richard A. Whalen ◽  
Gregory J. Kowalski

A numerical simulation code is used to investigate the size of the heat affected zone (HAZ) and the onset of thermal damage in a short pulsed transmission laser welding process. The welding process involves the lap welding of two thin 30 microns thick, moving layers, of thermoplastic films. The investigated welding conditions are transparent material over a semi-transparent or opaque material and two transparent materials over a reflective backing. The results provide temperature profiles that illustrate the relationship between; surface cooling, laser intensity, velocity feed rates and material thermo-physical properties.



1999 ◽  
Author(s):  
Robert A. Close ◽  
James S. Whiting


1991 ◽  
Vol 230 ◽  
pp. 667-691 ◽  
Author(s):  
Richard Williams ◽  
Laurence Armi

Two-layer hydraulics is developed for problems in which the moving layers can have stagnant layers above and below, the two internal wave modes can have comparable speeds and the total depth of the moving layers may vary. The general development allows both Boussinesq and non-Boussinesq problems to be studied. Solutions are presented in the Froude-number plane and the effect of different layer densities on the form of the solution space is shown. The theory is applied to two-layer plunging flows and a variety of controlled solutions are found. Solutions for the 2½-layer theory and the plunging flow theory are demonstrated experimentally. Shear instability is often observed in the divergent section of the channel.



1991 ◽  
Vol 29 (1) ◽  
pp. 91-106 ◽  
Author(s):  
N. Rajaratnam ◽  
D. Tovell ◽  
M. Loewen
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