Evaluation and Plugging Performance of Carbon Dioxide-Resistant Particle Gels for Conformance Control

SPE Journal ◽  
2020 ◽  
Vol 25 (04) ◽  
pp. 1745-1760
Author(s):  
Xindi Sun ◽  
Yifu Long ◽  
Baojun Bai ◽  
Mingzhen Wei ◽  
Sujay Suresh
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Supercritical Co2 ◽  
Structural Damage ◽  
Pressure Vessels ◽  
Superabsorbent Polymer ◽  
Additional Water ◽  
Fractured Sandstone ◽  
Plugging Performance ◽  
Breakthrough Pressure

Summary Traditional polyacrylamide (PAM)-based superabsorbent polymer has been applied to control excess carbon dioxide (CO2) production in CO2-flooding fields. Nevertheless, the application results are mixed because the polyacrylamide-based superabsorbent polymer dehydrates significantly when exposed to supercritical CO2; therefore, we evaluated a novel CO2-resistant gel (CRG) with reliable stability and CO2-responsive properties. Particularly, the CRG swelling ratio (SR) and gel-volume increase after CO2 stimulation if additional water is available. Swollen CRG was placed in high-pressure vessels to examine the weight loss and the property changes before and after exposure to CO2. The breakthrough pressure and CRG-plugging efficiency to CO2 were measured using partially open fractured-sandstone cores. Two water/alternating/gas (WAG) cycles were conducted to test the CRG-plugging performance after CRG injection. The high-pressure vessel-test results show that the CRG is very stable under the supercritical-CO2 condition and no free water is released from the samples. The scanning-electron-microscope (SEM) images confirm that no structural damage was observed in CRG after exposure to CO2. The breakthrough pressure increases with the matrix permeability, which is mainly induced by the internal and external gel cake formed on the rock surface. CRG can reduce the water permeability more than CO2 permeability. CRG-plugging efficiency to CO2 decreases with the increase of WAG cycles. However, in the 0.5-mm fracture model and the 390-md model, CRG-plugging efficiency to water increases with WAG cycles. This phenomenon further indicates that CRG can be stimulated by CO2, which allows CRG to absorb additional water during post-waterflooding. In general, this study reports the concept of the novel CRG and a systematical evaluation of CRG stability under supercritical-CO2 conditions and CRG-plugging efficiency using a partially open fractured-sandstone model.

scholarly journals Quality and Shelf Life of White Shrimp (Litopenaeus vannamei) Processed with High-Pressure Carbon Dioxide (HPCD) at Subcritical and Supercritical States

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Maria Erna Kustyawati ◽  
Filli Pratama ◽  
Samsul Rizal ◽  
Esa Ghanim Fadhallah ◽  
Abdullah Aman Damai
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Shelf Life ◽  
Litopenaeus Vannamei ◽  
Supercritical Co2 ◽  
Quality Parameters ◽  
Phase Changes ◽  
White Shrimp ◽  
Carotene Content ◽  
Co2 Treatment

Phase changes of carbon dioxide (supercritical or subcritical) depend on its proximity to a pressure of 7.35 MPa and temperature of 31.1°C. Carbon dioxide becomes supercritical and subcritical when it is above and slightly below its critical point, respectively. This study aims to determine the effect of high-pressure CO2 treatments at a pressure of 900 psi, 950 psi (subcritical), and 1100 psi (supercritical) and at holding times of 5, 10, and 15 min on the quality parameters of white shrimp (Litopenaeus vannamei) and to determine the shelf life of white shrimp processed with the best treatment. The results showed that the interaction between pressure and holding time had a significant p < 0.05 effect on cholesterol, protein, moisture content, and b ∗ value, but pressure had a significant effect on carotene content. The best treatment was a supercritical CO2 treatment at 1100 psi for 10 min, which was determined based on a significant reduction in the number of microorganisms and no significant changes in color, texture, and fat content were observed compared with control. The best treatment was applied to process shrimps, which were then stored at 4°C to evaluate the effectiveness of scCO2 treatment on the shelf life. No significant changes were found in PV and lipid in treated and scCO2-treated shrimps during storage, but the treatment significantly affected pH, TVBN, and microbial counts. Among the samples, there was no hedonic difference in all sensory attributes. Supercritical CO2 treatment at 1100 psi for 10 min can be an alternative method for preservation of shrimps.

Features of spatial shock-wave flows in vapor-gas-liquid mixtures

2014 ◽  
Vol 10 ◽  
pp. 27-31
Author(s):  
R.Kh. Bolotnova ◽  
U.O. Agisheva ◽  
V.A. Buzina
Keyword(s):  
Shock Wave ◽  
High Pressure ◽  
Shock Waves ◽  
Liquid Mixture ◽  
Liquid Mixtures ◽  
Pressure Vessels ◽  
Water Mixture ◽  
Two Dimensional ◽  
Nonstationary Processes ◽  
Two Phase

The two-phase model of vapor-gas-liquid medium in axisymmetric two-dimensional formulation, taking into account vaporization is constructed. The nonstationary processes of boiling vapor-water mixture outflow from high-pressure vessels as a result of depressurization are studied. The problems of shock waves action on filled by gas-liquid mixture volumes are solved.

scholarly journals The degradation of cellulose in ionic mixture solutions under the high pressure of carbon dioxide

RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3484-3494
Author(s):  
Sumarno ◽  
Prida Novarita Trisanti ◽  
Bramantyo Airlangga ◽  
Novi Eka Mayangsari ◽  
Agus Haryono
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Hydrothermal Process ◽  
Reducing Sugar

Cellulose processing by a hydrothermal process as well as in combination with a sonication pretreatment under a CO2 pressurization that affects the morphology and reducing sugar products.

Influences of dynamic entrainer-blended supercritical CO2 fluid exposure on high-pressure methane adsorption on coals

2019 ◽  
Vol 66 ◽  
pp. 180-191 ◽  
Author(s):  
Dengfeng Zhang ◽  
Chao Li ◽  
Jin Zhang ◽  
Zengmin Lun ◽  
Shuaiqiu Jia ◽  
...  
Keyword(s):  
High Pressure ◽  
Supercritical Co2 ◽  
Methane Adsorption ◽  
Supercritical Co2 Fluid

scholarly journals Development of ASME Section X Code Rules for High Pressure Composite Hydrogen Pressure Vessels With Nonload Sharing Liners

2012 ◽  
Vol 134 (3) ◽  
Author(s):  
Norman L. Newhouse ◽  
George B. Rawls ◽  
Mahendra D. Rana ◽  
Bernard F. Shelley ◽  
Michael R. Gorman
Keyword(s):  
High Pressure ◽  
Cyclic Fatigue ◽  
Pressure Vessels ◽  
Class Iii ◽  
Environmental Testing ◽  
Emission Testing ◽  
Design Qualification ◽  
Acoustic Emission Testing ◽  
Hydrogen Storage Vessel ◽  
Technical Basis

The purpose of this paper is to document the development of ASME Section X Code rules for high pressure vessels for containing hydrogen and to provide a technical basis of their content. The Boiler and Pressure Vessel Project Team on Hydrogen Tanks was formed in 2004 to develop Code rules to address the various needs that had been identified for the design and construction of up to 15,000 psi hydrogen storage vessel. One of these needs was the development of Code rules for high pressure composite vessels with nonload sharing liners for stationary applications. In 2009, ASME approved new Appendix 8, for Section X Code which contains the rules for these vessels. These vessels are designated as Class III vessels with design pressure ranging from 21 MPa (3000 psi) to 105 MPa (15,000 psi) and maximum allowable outside liner diameter of 2.54 m (100 in.). The maximum design life of these vessels is limited to 20 years. Design, fabrication, and examination requirements have been specified, including Acoustic Emission testing at the time of manufacture. The Code rules include the design qualification testing of prototype vessels. Qualification includes proof, expansion, burst, cyclic fatigue, creep, flaw, permeability, torque, penetration, and environmental testing.

scholarly journals Emission spectrum of an electric-ionization high-pressure carbon dioxide laser

1974 ◽  
Vol 4 (2) ◽  
pp. 185-188
Author(s):  
V A Ageikin ◽  
Viktor N Bagratashvili ◽  
I N Knyazev ◽  
Yu A Kudryavtsev ◽  
V S Letokhov
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Emission Spectrum ◽  
Carbon Dioxide Laser
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