Productivity Equation of Fractured Vertical Well with Gas–Water Co-Production in High-Water-Cut Tight Sandstone Gas Reservoir
Due to the high water saturation in high-water-cut tight sandstone gas reservoirs, factors such as threshold pressure gradient (TPG) and stress sensitivity (SS) cannot be overlooked in terms of their impact on seepage parameters. Therefore, this paper primarily investigates the seepage mechanisms in...
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| Veröffentlicht in: | Processes 2023-11, Vol.11 (11), p.3123 |
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| creator | Wei, Benchi Nie, Xiangrong Zhang, Zonghui Ding, Jingchen Shayireatehan, Reyizha Ning, Pengzhan Deng, Dingtian Cao, Yi |
| description | Due to the high water saturation in high-water-cut tight sandstone gas reservoirs, factors such as threshold pressure gradient (TPG) and stress sensitivity (SS) cannot be overlooked in terms of their impact on seepage parameters. Therefore, this paper primarily investigates the seepage mechanisms in tight, high-water-cut sandstone gas reservoirs. While considering the influence of water saturation on various seepage mechanisms, it establishes a gas well productivity equation under stable seepage conditions and presents an analysis of the influencing factors. In a comparison of the unobstructed flow rates calculated using the productivity equation developed in this paper with those obtained from conventional gas well productivity equations and actual gas well productivity tests, the new equation demonstrates smaller errors. This provides a theoretical basis for evaluating productivity and making rational production allocation decisions in high-water-cut tight sandstone gas reservoirs. |
| doi_str_mv | 10.3390/pr11113123 |
| format | Article |
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This provides a theoretical basis for evaluating productivity and making rational production allocation decisions in high-water-cut tight sandstone gas reservoirs.</description><identifier>ISSN: 2227-9717</identifier><identifier>EISSN: 2227-9717</identifier><identifier>DOI: 10.3390/pr11113123</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Analysis ; Decision theory ; Flow velocity ; Gas wells ; Hydraulic fracturing ; Mathematical analysis ; Natural gas ; Permeability ; Production management ; Productivity ; Reservoirs ; Sandstone ; Seepage ; Water</subject><ispartof>Processes, 2023-11, Vol.11 (11), p.3123</ispartof><rights>COPYRIGHT 2023 MDPI AG</rights><rights>2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). 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This provides a theoretical basis for evaluating productivity and making rational production allocation decisions in high-water-cut tight sandstone gas reservoirs.</description><subject>Analysis</subject><subject>Decision theory</subject><subject>Flow velocity</subject><subject>Gas wells</subject><subject>Hydraulic fracturing</subject><subject>Mathematical analysis</subject><subject>Natural gas</subject><subject>Permeability</subject><subject>Production management</subject><subject>Productivity</subject><subject>Reservoirs</subject><subject>Sandstone</subject><subject>Seepage</subject><subject>Water</subject><issn>2227-9717</issn><issn>2227-9717</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpNUUtOwzAQjRBIVNANJ7DEDinFn8ROllXUD1IlEBS6jFzHbl2lcWs7RV3BHbghJ8GlIJhZzO-9mdFMFF0h2CMkh7cbi4IQhMlJ1MEYszhniJ3-88-jrnMrGCRHJEtpJ3p7sKZqhdc77fdgsG2516YBRoGh5cK3VlbgRVqvBa_BTNY1eNV-CUbcfb5_zLiXFhQm_m0SmLoBY71Yxt-1uGg9mIbQgyfeVM6bRh644FE6aXdG28voTPHaye6PvYieh4NpMY4n96O7oj-JBSGJjxXMKVQwI4ohXIk0gZyjeZoqqCqRzKWSFFOcpglllGcqU2mOEppjLFLIREXIRXR97LuxZttK58uVaW0TRpY4y0m4H6E4oHpH1ILXstSNMj5cIWgl11qE5ZUO-T5jCQnDMAqEmyNBWOOclarcWL3mdl8iWB6eUv49hXwBbKR_tQ</recordid><startdate>20231101</startdate><enddate>20231101</enddate><creator>Wei, Benchi</creator><creator>Nie, Xiangrong</creator><creator>Zhang, Zonghui</creator><creator>Ding, Jingchen</creator><creator>Shayireatehan, Reyizha</creator><creator>Ning, Pengzhan</creator><creator>Deng, Dingtian</creator><creator>Cao, Yi</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>LK8</scope><scope>M7P</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope></search><sort><creationdate>20231101</creationdate><title>Productivity Equation of Fractured Vertical Well with Gas–Water Co-Production in High-Water-Cut Tight Sandstone Gas Reservoir</title><author>Wei, Benchi ; 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| subjects | Analysis Decision theory Flow velocity Gas wells Hydraulic fracturing Mathematical analysis Natural gas Permeability Production management Productivity Reservoirs Sandstone Seepage Water |
| title | Productivity Equation of Fractured Vertical Well with Gas–Water Co-Production in High-Water-Cut Tight Sandstone Gas Reservoir |
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