Profile Control Technology of Thermal Recovery in Shengli Oilfield

1998 ◽  
Author(s):  
Shen Chen
Keyword(s):  
Thermal Recovery ◽  
Control Technology ◽  
Shengli Oilfield ◽  
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

The Application of High Temperature Foam Surface Active Agent Used in Heavy Oil Thermal Recovery

2014 ◽  
Vol 672-674 ◽  
pp. 700-703 ◽  
Author(s):  
En Hong Liu
Keyword(s):  
High Temperature ◽  
Heavy Oil ◽  
Surface Active Agent ◽  
Active Agent ◽  
Steam Injection ◽  
Carbon Chain ◽  
Thermal Recovery ◽  
Alkyl Benzene Sulfonate ◽  
Profile Control ◽  
Surface Active

Heavy oil in Liaohe oilfield is buried in more than 1000 meters, and the steam injection temperature is around 350°C. Through the experiment on surfactant product, high temperature foam surface active agent was developed, which was based on high carbon chain alkyl benzene sulfonate or alkyl toluene sulfonate, and auxiliary solvent and stabilizer were added. High temperature foam surface active agent can meet the needs of steam foam profile control technology.

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.

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