Making the large bell and hopper with a rolled middle section

Metallurgist ◽  
1979 ◽  
Vol 23 (8) ◽  
pp. 543-545
Author(s):  
A. S. Shinkarenko ◽  
M. D. Zaslavskii ◽  
A. I. Nefedov ◽  
A. I. Shilyaev ◽  
L. V. Baskakov
Keyword(s):  
2015 ◽  
Vol 48 (2) ◽  
pp. 76
Author(s):  
Dip Narayan Koner ◽  
Sanjay Kumar Jha
Keyword(s):  

2021 ◽  
Author(s):  
P. R. Safiraldi

Objective/Scope: Challenges of sucker rod pumping operation in high gas and solid production;The implementation of integrated down-hole gas and solid separation in one device. Method procedure/processes: Old Rimau Fields in South Sumatera produce oil from sandstone reservoir with GOR above 800 scf/stb and solid production resulted from fracturing proppant flow back. Due to these conditions, some problems such as gas lock or interference, pump leakage, and rod parted were discovered which resulting in low SRP run life. The installation of sand screen and gas anchor has been implemented to encounter this issue. However, this initiative still ineffective due to limited conditions. If the sand screen was installed to control the sand, then the gas anchor to control the gas could not be installed and vice versa.Results, observations, conclusions: Integrated solid and gas handling called "hybrid" device has been introduced. The device is connected directly at the bottom of down-hole pump consist of three section, the upper section for intake and gas separator, the middle section for gas and solid separator, and lower one for solid container. The first utilization was conducted in three SRP wells, which are KG-09, LKP-21, and KG-10. Previously, these wells were shut-in due to down-hole problem. After installing the device while well service, the SRP run normally to produce the oil. The increasing of pump load performance was also obtained, indicated by the dyna card. At this time, the SRP is still running and run life is still under surveillance. This paper will explain the new technology end-to-end implementation of the integrated down-hole sand and gas control in one device for Sucker Rod Pump (SRP) system.


1975 ◽  
Author(s):  
Marvin H. Pope

This third edition of the Anchor Bible Book Of Job (Volume 15 in the series) contains numerous new, revised or augmented notes. Of special interest is the inclusion of readings from the earliest translation of the Book Of Job, the recently published Targum (Aramaic translation) recovered from Cave XI of Khirbet Qumran, in the Judean Wilderness near the Dead Sea, perhaps the version which was suppressed by Rabbi Gamaliel. The Book Of Job is one of the indisputably great works of world literature. The story is well-known: a prosperous and happy man, distinguished for rectitude and piety, falls victim to a series of catastrophes. And the occasion (if not the reason) for these undeserved calamities: Satan's challenge to Yahweh to test the sincerity of Job's faith. It is by now proverbial to refer to the patience of Job. Yet this traditional image derives only from the Prologue and the Epilogue of the book. But the Job who confronts us in the long middle section is anything but patient. His outcries against God raise the question of theodicy, or divine justice, which occupies the greater portion of Job's Dialogue with his comforters. But it is inevitably as literature that Job must be read and enjoyed. This translation is marked by a concerted effort to capture as much as possible the poetic and metrical characteristics of the original Hebrew: the result is a version notable for its accuracy and directness. The experience of reading the Book Of Job in this translation, then, is to rediscover an exceedingly eloquent masterpiece. In the terse, rhythmic quality of the translation, the incisive comprehensiveness of the introduction and notes, Job maintains the high standard of scholarship, literateness, and readability established in The Anchor Bible.


2014 ◽  
Vol 74 (3) ◽  
pp. 529-537 ◽  
Author(s):  
S Branco ◽  
M Menezes ◽  
C Alves-de-Souza ◽  
P Domingos ◽  
MA Schramm ◽  
...  

Six blooms of Heterosigma akashiwo(Raphidophyceae) were observed from March 2007 through March 2008 in the Rodrigo de Freitas Lagoon, a semi-confined eutrophic system located in Rio de Janeiro state, southeast Brazil. Vegetative cells of H. akashiwo analysed by optical and electron microscopy showed morphology as described in the literature. The blooms (2.8 × 104 to 4 × 108 cell.L–1) were restricted to the middle section of the Piraquê Channel, which is situated in the northeastern part of the lagoon and receives freshwater inflow. The salinity of subsurface water and the channel depth showed significant negative correlations with H. akashiwo abundances, and appeared to restrict the blooms to this compartment of the lagoon. No fish mortality was associated with the H. akashiwo blooms, nor were brevetoxins detected in a cell extract obtained from the bloom observed on 19 March 2007.


2018 ◽  
Vol 722 ◽  
pp. 595-600 ◽  
Author(s):  
M. Cihat Alçiçek ◽  
Lars W. van den Hoek Ostende ◽  
Gerçek Saraç ◽  
Alexey S. Tesakov ◽  
Alison M. Murray ◽  
...  

2008 ◽  
Vol 367 ◽  
pp. 125-136 ◽  
Author(s):  
Lorenzo Donati ◽  
Luca Tomesani

This work summarizes the outcome of recent research by the authors on modeling the formation of seam welds in aluminum extrusion and on evaluating the related mechanical properties on the final products. A profile with a seam weld in the middle section was produced with different die designs in order to investigate the relation between die design and local welding parameters, such as contact pressure, temperature, time of contact, strain and strain rate paths. The local welding conditions were evaluated by complete thermo-mechanical 3D FEM simulation of the processes. Specimens were extracted from the profiles and tensile tested, the resulting mechanical properties being discussed with respect to the local welding conditions. The possibility to adopt criteria for assessing the welding quality is discussed, together with the effect of high speed damage cracking.


2021 ◽  
Vol 303 ◽  
pp. 01040
Author(s):  
Fan Feng ◽  
Xibing Li ◽  
Shaojie Chen ◽  
Dingxiao Peng ◽  
Zhuang Bian

For mining using the caving and filling methods in metal mines, determining a suitable size for the isolated pillars—the connecting part of the extension from shallow to deep—is crucial for ensuring safety and efficiency. Considering actual cases involving deep caving and cut-and-fill mining in the Chifeng Hongling lead-zinc mine in Inner Mongolia, China, the reserved thickness range of the horizontal isolation layer is obtained via theoretical analysis. On this basis, the pre-processing software HyperMesh is used to build a high-precision hexahedral grid model of the mining area, and the three-dimensional geological model of the mining area is imported into the finite-difference software FLAC3D. The stress field, displacement field, and plastic area evolution law of pillars (horizontally isolated pillars and adjacent rib pillars) in the stope of the ninth middle section after excavation are analyzed via numerical simulation inversion of the selected scheme of horizontal isolated pillars. The numerical simulation results show that the scheme employed to retain the upper horizontal isolated pillars in the ninth middle section involves reserving thicknesses of 8 m and 32 m at average ore body thicknesses of 15 m and 35 m, respectively. These results can provide theoretical guidance and a basis for safe and efficient mining of deep metal mines.


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