Experimental Investigation on a Novel Organic-Inorganic Crosslinked Polymer Gel for Water Control in Ultra-High Temperature Reservoirs

2017 ◽  
Author(s):  
Yifei Liu ◽  
Caili Dai ◽  
Qing You ◽  
Chenwei Zou ◽  
Mingwei Gao ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
High Temperature ◽  
Polymer Gel ◽  
Water Control ◽  
Crosslinked Polymer ◽  
Ultra High Temperature

scholarly journals An Optimization Study of Polyacrylamide-Polyethylenimine-Based Polymer Gel for High Temperature Reservoir Conformance Control

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Zulhelmi Amir ◽  
Ismail Mohd Saaid ◽  
Badrul Mohamed Jan
Keyword(s):  
High Temperature ◽  
Raw Materials ◽  
Gelation Time ◽  
Quadratic Equation ◽  
Quadratic Model ◽  
Polymer Gel ◽  
Performance Information ◽  
Conformance Control ◽  
Crosslinked Polymer ◽  
Optimization Study

This paper presents optimization formulation of organically crosslinked polymer gel for high temperature reservoir conformance control using response surface methodology (RSM). It is always desirable to approach an optimal polymer gel formulation study with adequate performance information related to viscosity and gelation time to minimize excessive water production. In this paper, the effects of polymer and crosslinker concentrations and their influences on gelation time and viscosity were investigated. Central composite design (CCD) was used to determine the optimized organically crosslinked polymer gel formulation. Concentrations of two main raw materials, namely, polyacrylamide (PAM) and polyethylenimine (PEI), were varied in a suitable range. This was to obtain the formulation with the desirable two vital responses, which are viscosity and gelation time. It was found that the results fitted the quadratic equation. Statistically, the quadratic model is reliable and adequate perfectly the variability of the responses obtained from the experimental data. In addition, gelation time and gel viscosity may be controlled by adjusting both polymer and crosslinker concentrations. The optimum formulated organically crosslinked polymer gel with significant desirability factor conditions was achieved at 1.5% w/v of PAM and 0.3% v/v of PEI.

scholarly journals Ab-initio modeling and experimental investigation of properties of ultra-high temperature solid solutions TaxZr1-xC

2019 ◽  
Vol 778 ◽  
pp. 480-486 ◽  
Author(s):  
S. Vorotilo ◽  
K. Sidnov ◽  
I. Yu. Mosyagin ◽  
A.V. Khvan ◽  
E.A. Levashov ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
High Temperature ◽  
Ab Initio ◽  
Solid Solutions ◽  
Ab Initio Modeling ◽  
Ultra High Temperature

High-Temperature Water Control With an Organically Crosslinked Polymer-Case Histories From Mexico

2009 ◽  
Author(s):  
Modesto Mercado ◽  
Juan Carlos Acuna ◽  
David Najera ◽  
Carlos Caballero ◽  
J. Eduardo Soriano
Keyword(s):  
High Temperature ◽  
Case Histories ◽  
Water Control ◽  
Crosslinked Polymer ◽  
High Temperature Water ◽  
Temperature Water

Experimental Investigation on an Ultra-High Temperature Air Source Heat Pump Water Heater

2021 ◽  
Vol 13 (6) ◽  
Author(s):  
Yu Xu ◽  
Zihang Zhu ◽  
Chunda Fu ◽  
Wenqing Xia
Keyword(s):  
Experimental Investigation ◽  
High Temperature ◽  
Heat Pump ◽  
Single Stage ◽  
Boiling Water ◽  
Water Heater ◽  
Air Source Heat Pump ◽  
Heat Pump Water Heater ◽  
Compression Cycle ◽  
Ultra High Temperature

Abstract To generate boiling water beyond 100 °C via heat pump technology, the prototype of an ultra-high temperature air source heat pump water heater (ASHPWH) based on a single-stage compression cycle of R134a was established, and an experimental investigation on it was conducted under an environment temperature of 25 °C. Then, thermodynamic analyses were carried out on the basis of the experimental results, especially when the prototype produced 95.9 and 100.3 °C water. The experimental and analytical results indicate that water beyond 100 °C was achieved through the prototype. When producing 100.3 °C water, the discharge temperature and compression ratio of the compressor of the prototype are only 108.4 °C and 4.07, respectively, which are in moderate levels. Correspondingly, the work input of the compressor is 0.622 kW, the heating capacity is 2.786 kW, and the heating coefficient of performance is 4.48. In addition, when producing 95.9 and 100.3 °C water, the system exergy efficiencies of the prototype are 50.76% and 49.73%, which are larger than those of the existing ASHPWHs, demonstrating that dividing the condensing process into two parts of high-grade exergy and low-grade exergy and utilizing them separately is effective. That is the essential reason of generating boiling water beyond 100 °C as expected only through the single-stage compression cycle.

Freeze-etch TEM of aqueous polymer gel network morphology

1986 ◽  
Vol 44 ◽  
pp. 796-797
Author(s):  
J. A. N. Zasadzinski ◽  
R. K. Prud'homme
Keyword(s):  
Metal Ion ◽  
Polymer Network ◽  
Polymer Gels ◽  
Polymer Gel ◽  
Deformation History ◽  
Crosslinked Polymer ◽  
Aqueous Polymer ◽  
History Of ◽  
Gel Network ◽  
Network Morphology

The rheological and mechanical properties of crosslinked polymer gels arise from the structure of the gel network. In turn, the structure of the gel network results from: thermodynamically determined interactions between the polymer chain segments, the interactions of the crosslinking metal ion with the polymer, and the deformation history of the network. Interpretations of mechanical and rheological measurements on polymer gels invariably begin with a conceptual model of,the microstructure of the gel network derived from polymer kinetic theory. In the present work, we use freeze-etch replication TEM to image the polymer network morphology of titanium crosslinked hydroxypropyl guars in an attempt to directly relate macroscopic phenomena with network structure.

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