The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform
J. J. Carroll - One of the best experts on this subject based on the ideXlab platform.
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Impact of thermophysical properties research on acid Gas Injection process design
1999Co-Authors: H.j. Ng, J. J. Carroll, J. MaddocksAbstract:Stricter regulations and increased environmental concerns are making the previously common practice of flaring acid Gas less attractive. Producers are being forced to find alternative methods to deal with this unwanted by-product. Acid Gas Injection has quickly become the method of choice for disposal, especially for small producers. Presented in this paper is a brief overview of the acid Gas Injection process. Included in this discussion is a description of what physical property and phase equilibria data are required and why. In addition, some new experimental data for the water content and density of sour Gas mixtures are presented. These data are useful for checking the validity of the correlations used in the design of an acid Gas Injection scheme. In addition, such data are useful for optimizing the interaction parameters in the thermodynamic models employed to calculate such properties.
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Phase diagrams reveal acid-Gas Injection subtleties
Oil & Gas Journal, 1998Co-Authors: J. J. CarrollAbstract:Examination of phase equilibria in a binary hydrogen sulfide (H{sub 2}S) and water system explains some nuances of acid-Gas Injection. Also, the phase diagrams dispel some misconceptions, prevalent in literature, on hydrate formation. This article shows how hydrates can form without free water (an aqueous liquid phase) present and how hydrates can also form in the presence of a nonaqueous liquid. This first of a two-part series describes multicomponent phase diagrams. The concluding part will explain acid-Gas phase changes from the amine unit to the bottom of an Injection well. To replace flaring, acid-Gas Injection is quickly becoming an environmentally friendly alternative. Acid-Gas Injection also has attracted the attention of larger producers. With sulfur prices depressed, reInjection could be an economical alternative to building a Claus plant and stockpiling sulfur. It is even possible that injected H{sub 2}S could be produced at a future date if sulfur prices improve.
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Phase diagrams reveal acid-Gas Injection subtleties
Oil & Gas Journal, 1998Co-Authors: J. J. CarrollAbstract:Examination of phase equilibria in a binary hydrogen sulfide (H{sub 2}S) and water system explains some nuances of acid-Gas Injection. Also, the phase diagrams dispel some misconceptions, prevalent in literature, on hydrate formation. This article shows how hydrates can form without free water (an aqueous liquid phase) present and how hydrates can also form in the presence of a nonaqueous liquid. This first of a two-part series describes multicomponent phase diagrams. The concluding part will explain acid-Gas phase changes from the amine unit to the bottom of an Injection well. To replace flaring, acid-Gas Injection is quickly becoming an environmentally friendly alternative. Acid-Gas Injection also has attracted the attention of larger producers. With sulfur prices depressed, reInjection could be an economical alternative to building a Claus plant and stockpiling sulfur. It is even possible that injected H{sub 2}S could be produced at a future date if sulfur prices improve.
Yunchen Ding - One of the best experts on this subject based on the ideXlab platform.
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CFD simulation of a rotary compressor with Gas Injection
IOP Conference Series: Materials Science and Engineering, 2019Co-Authors: Junfeng Wang, Yunchen Ding, Baolong Wang, Hui Ding, Yanfen HuangAbstract:Rotary compressors are widely used in small capacity refrigeration and heat pump Systems. Gas Injection is an effective way to improve compressor efficiency especially when operating under low temperature. A novel design injects Gas through the rotary compressor blade, controlled by a built in reed valve. CFD simulation provides valuable insights to help design engineers to verify, to analyze, and to improve the performance of compressors. For this particular application, besides modeling rotary compressor operation, CFD simulation also needs to solve reed valve dynamics with combined movement of the blade. In this paper, a full 3D transient CFD model of a rotary compressor with Gas Injection is described in detail. Real Gas properties is used for the refrigerant. Methodology used to model reed valve dynamics is discussed. Simulation results are validated by experiment data. Effects of Gas Injection are evaluated by comparing the simulation results for the cases with and without Gas Injection.
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Technical development of Gas Injection on rotary compressor.
2017Co-Authors: Baolong Wang, Yunchen DingAbstract:Rotary compressor is most widely used in small capacity refrigeration and heat pump systems. For the air source heat pump, the heating capacity and the COP will be obviously degraded when it is utilized in low temperature ambient. Gas Injection is an effective method to enhance its performance under those situations, which has been well applied in air source heat pump with scroll compressor. However, the develop of the Gas Injection technology in rotary compressor is relatively slow due to limited performance improvement. In this research, the essential reason constraining the improvement of the Gas Injection on the rotary compressor and its heat pump system is identified. Technical development of Gas Injection on rotary compressor are summarized. Two new Injection structures for rotary compressors has been put forward to overcome the drawback of traditional Injection structures. The results indicate that, compared to the air source heat pump with the traditional Gas injected rotary compressor, the new Injection structures both can enhance heating capacity and COP of the air source heat pump obviously.
Baolong Wang - One of the best experts on this subject based on the ideXlab platform.
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CFD simulation of a rotary compressor with Gas Injection
IOP Conference Series: Materials Science and Engineering, 2019Co-Authors: Junfeng Wang, Yunchen Ding, Baolong Wang, Hui Ding, Yanfen HuangAbstract:Rotary compressors are widely used in small capacity refrigeration and heat pump Systems. Gas Injection is an effective way to improve compressor efficiency especially when operating under low temperature. A novel design injects Gas through the rotary compressor blade, controlled by a built in reed valve. CFD simulation provides valuable insights to help design engineers to verify, to analyze, and to improve the performance of compressors. For this particular application, besides modeling rotary compressor operation, CFD simulation also needs to solve reed valve dynamics with combined movement of the blade. In this paper, a full 3D transient CFD model of a rotary compressor with Gas Injection is described in detail. Real Gas properties is used for the refrigerant. Methodology used to model reed valve dynamics is discussed. Simulation results are validated by experiment data. Effects of Gas Injection are evaluated by comparing the simulation results for the cases with and without Gas Injection.
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Technical development of Gas Injection on rotary compressor.
2017Co-Authors: Baolong Wang, Yunchen DingAbstract:Rotary compressor is most widely used in small capacity refrigeration and heat pump systems. For the air source heat pump, the heating capacity and the COP will be obviously degraded when it is utilized in low temperature ambient. Gas Injection is an effective method to enhance its performance under those situations, which has been well applied in air source heat pump with scroll compressor. However, the develop of the Gas Injection technology in rotary compressor is relatively slow due to limited performance improvement. In this research, the essential reason constraining the improvement of the Gas Injection on the rotary compressor and its heat pump system is identified. Technical development of Gas Injection on rotary compressor are summarized. Two new Injection structures for rotary compressors has been put forward to overcome the drawback of traditional Injection structures. The results indicate that, compared to the air source heat pump with the traditional Gas injected rotary compressor, the new Injection structures both can enhance heating capacity and COP of the air source heat pump obviously.
James J Sheng - One of the best experts on this subject based on the ideXlab platform.
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enhanced oil recovery in shale reservoirs by Gas Injection
Journal of Natural Gas Science and Engineering, 2015Co-Authors: James J ShengAbstract:The current available technique to produce shale oil and Gas condensate is through primary depletion using horizontal wells with multiple transverse fractures. The oil recovery factor is only a few percent. There is a big prize to be claimed in terms of enhanced oil recovery (EOR). Because Gas price is low and oil price is high, maximizing liquid oil production from Gas condensate reservoirs becomes shale producers' top interest. This paper provides the status of enhanced oil recovery (EOR) in shale oil and Gas condensate reservoirs by Gas Injection. It starts with the discussion of possible EOR options in shale reservoirs. For the Gas Injection option, the huff and puff mode is compared with the Gas flooding mode. Different modes of water Injection in shale oil reservoirs are also compared. The discussion and comparison show that Gas Injection is more feasible in shale reservoirs than waterflooding and any other EOR methods. The rest of the paper focuses on review of Gas Injection in shale reservoirs, which covers the following. • Mechanisms of Gas Injection. • Experimental results on huff and puff Gas Injection. • Simulation results on huff and puff Gas Injection. • Gas Injection in Gas condensate reservoirs. This paper summarizes the EOR efforts which has been made in the industry and provides the direction for the industry future efforts to maximize liquid oil production.
J. Maddocks - One of the best experts on this subject based on the ideXlab platform.
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Impact of thermophysical properties research on acid Gas Injection process design
1999Co-Authors: H.j. Ng, J. J. Carroll, J. MaddocksAbstract:Stricter regulations and increased environmental concerns are making the previously common practice of flaring acid Gas less attractive. Producers are being forced to find alternative methods to deal with this unwanted by-product. Acid Gas Injection has quickly become the method of choice for disposal, especially for small producers. Presented in this paper is a brief overview of the acid Gas Injection process. Included in this discussion is a description of what physical property and phase equilibria data are required and why. In addition, some new experimental data for the water content and density of sour Gas mixtures are presented. These data are useful for checking the validity of the correlations used in the design of an acid Gas Injection scheme. In addition, such data are useful for optimizing the interaction parameters in the thermodynamic models employed to calculate such properties.
