The profile control technology of multiscale DPG particles

2022 ◽  
pp. 97-153
Author(s):  
Caili Dai ◽  
Guang Zhao ◽  
Qing You ◽  
Mingwei Zhao ◽  
Yifei Liu ◽  
...  
Keyword(s):  
Control Technology ◽  
Profile Control

Experimental Research on Profile Control Technology Using Sewage Flowed Back from Injecting-Polymer Wells

2012 ◽  
Vol 550-553 ◽  
pp. 2112-2116
Author(s):  
Zhi Feng Cai ◽  
Guang Sheng Cao ◽  
Shao Wei Cheng
Keyword(s):  
Experimental Research ◽  
Oil Recovery ◽  
Economic Benefits ◽  
Gelling Agent ◽  
Cross Linking ◽  
Control Technology ◽  
Use Of Resources ◽  
Profile Control ◽  
Ph Modifier ◽  
Gelling Time

With the amount of injecting-polymer wells in Xingnan SS block of Daqing Oilfield increasing gradually, a lot of problems, such as the treatment and use of sewage flowed back from injecting-polymer wells, need to be solved. The concentrations of gelling agent, cross-linking agent, and regulators have been optimized by measuring gelling strength and gelling time. The additives about pH modifier and deoxidizer have been selected. As a result, the formula system of profile control using sewage flowed back from injecting-polymer wells has been formed, realizing reuse of sewage, reaching the goal of improving oil recovery. The research in this paper not only solves the problem of re-injecting sewage flowed back from injecting-polymer wells, making full use of resources, but saves costs, improving economic benefits.

Nanopattern Profile Control Technology Using Reactive Ion Etching for 100 GB Optical Disc Mastering

2006 ◽  
Vol 45 (2B) ◽  
pp. 1414-1418 ◽  
Author(s):  
Megumi Fujimura ◽  
Yasuo Hosoda ◽  
Masahiro Katsumura ◽  
Masaki Kobayashi ◽  
Hiroaki Kitahara ◽  
...  
Keyword(s):  
Reactive Ion Etching ◽  
Control Technology ◽  
Optical Disc ◽  
Ion Etching ◽  
Profile Control

Analysis of the Thermal-force Roll Profile Control Ability Under Different Hole Structures and Slot Structures in the RPECT

2021 ◽  
Author(s):  
Tingsong Yang ◽  
Jiayang Liu ◽  
Haonan Zhou ◽  
Zhiqiang Xu ◽  
Fengshan Du
Keyword(s):  
Finite Element ◽  
Element Model ◽  
Control Technology ◽  
Flexible Control ◽  
Roll Profile ◽  
Finite Element Software ◽  
Thermal Crown ◽  
Profile Control ◽  
Flatness Control ◽  
Electromagnetic Control

Abstract Roll profile electromagnetic control technology (RPECT) is a strip flatness control technology based on the flexible control of roll profiles. As the core component, electromagnetic sticks can bulge with the induction heating of induction coils. To ensure the integrity of the coil circuit, the surfaces of the electromagnetic sticks need to be provided with slots. Moreover, the inner hole of the electromagnetic control roll is also needed to install the electromagnetic stick in the roll. The structures of the inner hole and slots affect the local structure of the electromagnetic stick and the electromagnetic control roll and then change the roll profile control ability. To research the radial bulging ability, the roundness of bulging, and the composition between the thermal crown and force crown under different holes or slots, a finite element model of circumferential RPECT is established by using the finite element software MARC. After analysis, the results showed that the radial bulging ability and the roundness under the influence of the roll radius were larger than those under the influences of the slot radius and slot amount, and the composition characteristics of the comprehensive roll profile were different under different conditions. Therefore, to achieve accurate roll profile control, the influences of the structures of holes and slots need to be included in the RPECT index.

Prospect of multiscale DPG in-depth profile control technology

2022 ◽  
pp. 339-341
Author(s):  
Caili Dai ◽  
Guang Zhao ◽  
Qing You ◽  
Mingwei Zhao ◽  
Yifei Liu ◽  
...  
Keyword(s):  
Depth Profile ◽  
Control Technology ◽  
Profile Control
Sign in / Sign up

Export Citation Format

Share Document