A New Biopolymer for High-Temperature Profile Control: Part II-Field Results

1989 ◽  
Author(s):  
K. Sampath ◽  
L.G. Jones ◽  
E.T. Strom ◽  
C.H. Phelps ◽  
C.S. Chiou
Keyword(s):  
High Temperature ◽  
Temperature Profile ◽  
Profile Control ◽  
Control Part

A New Biopolymer for High-Temperature Profile Control: Part 1-Laboratory Testing

1991 ◽  
Vol 6 (03) ◽  
pp. 360-364 ◽  
Author(s):  
E. Thomas Strom ◽  
James M. Paul ◽  
Craig H. Phelps ◽  
Krishnaswamy Sampath
Keyword(s):  
High Temperature ◽  
Temperature Profile ◽  
Laboratory Testing ◽  
Profile Control ◽  
Control Part

Water Shutoff and Profile Control with the Combination of Single Fluid and Double Fluids

2014 ◽  
Vol 962-965 ◽  
pp. 741-745
Author(s):  
Hao Wang
Keyword(s):  
High Temperature ◽  
Temperature Profile ◽  
Field Tests ◽  
Economic Benefits ◽  
Thermal Recovery ◽  
Working Fluids ◽  
Water Shutoff ◽  
Profile Control ◽  
Utilization Ratio ◽  
Chemical Water

Both the single fluid and double-fluid method for water shutoff and profile control have their limitations. If the two kinds of working fluids are used in combination for water shutoff and profile control, each of them exhibits its own plugging capability while they can form plugging materials when they contact and react with each other. This method can be used as a plugging system in the formations, eliminating the low utilization ratio and huge waste of the single or double-fluid chemicals. It can enhance the plugging capability and improve the water shutoff and profile control results. The single and double fluid (SAD) system has been proved satisfactory in the field tests of conventional chemical water shutoff and profile control, high temperature chemical water shutoff and high temperature profile control and channeling-plugging in thermal recovery wells. The economic benefits are remarkable from the field tests of 14 wells.

Performance Evaluation for High Temperature Blocking Agent of Tannin Foam System

2012 ◽  
Vol 524-527 ◽  
pp. 1518-1525
Author(s):  
Song Yan Li ◽  
Zhao Min Li
Keyword(s):  
High Temperature ◽  
Temperature Profile ◽  
Blocking Agent ◽  
Control Agent ◽  
Interference Phenomenon ◽  
Cyclic Steam Stimulation ◽  
Profile Control ◽  
New Type ◽  
System Selection ◽  
Steam Stimulation

Cyclic steam stimulation is a kind of recover method for heavy oil. Along with steam stimulation cycles increased, steam channeling interference phenomenon will appear. To solve the problem, one of the most effective methods is high temperature profile control technology. In this paper, a new type of high temperature plugging agent of tannin foam system was researched, and the influencing factors on it were analyzed. Through foam system selection and static evaluation high temperature profile control agent of tannin foam system has been selected. The formula is: foaming agent DHG-1 for 0.5%, tannin for 7.5%, formaldehyde for 4.0%, phenol for 1.0%, CaCl2 for 1000ppm. The tannin foam system can be used in steam stimulation well.

scholarly journals Development and Performance Evaluation of a High-Temperature Profile Control System

ACS Omega ◽  
2020 ◽  
Vol 5 (28) ◽  
pp. 17828-17838
Author(s):  
Chunsheng Wang ◽  
Lei Zhang ◽  
Guoshuai Ju ◽  
Qiji Sun
Keyword(s):  
Performance Evaluation ◽  
Control System ◽  
High Temperature ◽  
Temperature Profile ◽  
Profile Control ◽  
And Performance

MFR High Temperature Profile Control Agent Experimental Evaluation

2012 ◽  
Vol 602-604 ◽  
pp. 1250-1254
Author(s):  
Zhen Zhong Fan ◽  
Li Feng Zhang ◽  
Qing Wang Liu
Keyword(s):  
High Temperature ◽  
Temperature Profile ◽  
Gelation Time ◽  
Salt Resistance ◽  
Control Agent ◽  
Heating Time ◽  
The Core ◽  
Profile Control ◽  
Stable Performance ◽  
Breakthrough Pressure

MFR high temperature profile control agent consisted of 6.5% wood Fortunately sulfonic acid calcium (Ca-LS) and 6.5% crosslinker modified furfural resin (MFR),and the gel solution formed a stable performance gel in the 150~300°C.The higher the temperature, the shorter the gelation time; and the longer the heating time, the higher the gel strength. The gel is very stable at 300°C, and is well in acid and salt resistance. The core experiments showed that the blocking agent's blockage ratio is more than 99% ; the units of the breakthrough pressure was greater than 100 kPa / cm,which the gel solution is a good performance of high-temperature profile control agent.

Manufacturability Study for Etching High-Density BST/Pt Capacitors

2000 ◽  
Vol 655 ◽  
Author(s):  
Jay Hwang
Keyword(s):  
High Temperature ◽  
Etch Rate ◽  
Control Process ◽  
High Density ◽  
Wafer Surface ◽  
Plasma Chamber ◽  
Reactive Plasma ◽  
Pt Electrodes ◽  
Profile Control

AbstractProfile control, process repeatability and productivity concerns in etching Pt electrodes are reviewed specifically for application in fabricating high-density BST/Pt capacitors. The approach of using a high temperature cathode in a high-density reactive plasma chamber has produced a repeatable >85° Pt profile, stable etch rate and low particle results over a 500-wafer marathon test. A “corrosion-like” BST defect can be prevented by adding a post etch treatment to remove any corrosive residue from the wafer surface. A feasible manufacturing solution for etching BST/Pt capacitors for future high-density DRAM application is demonstrated.

High Speed Transient Temperature Profile Control Using Adjoint-Based Optimal Control Scheme

2011 ◽  
Author(s):  
Satoru Ito ◽  
Yuji Suzuki
Keyword(s):  
Optimal Control ◽  
Temperature Profile ◽  
Active Layer ◽  
Laser Diode ◽  
High Speed ◽  
Transient Temperature ◽  
Control Input ◽  
Control Scheme ◽  
Profile Control ◽  
Optimal Control Scheme

Optimal control scheme for transient temperature profile inside electronic devices such as pulsed laser diode is developed based on the adjoint equation of one-dimensional heat conduction. Joule heating with a thin-film heater is employed as the control input in order to minimize temperature changes of a thin active layer embedded in a modeled laser diode. In numerical simulations assuming the light-emitting time period of 1 μs, temperature variation of the active layer is successfully suppressed by 80% with the heat input prior to the onset of the laser pulse. It is found that the Fourier number of the layer between the control heater and the active layer is the key parameter to minimize the temperature fluctuations. We also successfully demonstrate suppression of the temperature change in a MEMS-based experimental setup.

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