Study on the Influence of Sand Production on Seepage Capacity in Natural Gas Hydrate Reservoirs
Sand production has become a common phenomenon in the exploitation of unconsolidated natural gas hydrate reservoirs, which will hinder the long-term production of natural gas hydrate reservoirs. However, there are few literatures reported on the influences in reservoir physical properties such as pe...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/6647647 |
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| _version_ | 1832568525741359104 |
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| author | Yongmao Hao Jikai Liang Chuixian Kong Mingwu Fan Hongzhi Xu Fan Yang Shiwei Yang |
| author_facet | Yongmao Hao Jikai Liang Chuixian Kong Mingwu Fan Hongzhi Xu Fan Yang Shiwei Yang |
| author_sort | Yongmao Hao |
| collection | DOAJ |
| description | Sand production has become a common phenomenon in the exploitation of unconsolidated natural gas hydrate reservoirs, which will hinder the long-term production of natural gas hydrate reservoirs. However, there are few literatures reported on the influences in reservoir physical properties such as permeability and porosity, and production laws caused by sand production. This paper provides a numerical model, coupled with reservoir sand-gas-water multiphase flow processes, which is capable to simulate the process of sand production in natural gas hydrate reservoirs. The simulation results indicate that sand settlement is mainly concentrated near the wellbore due to the high concentration of migrated sand. The decrease in reservoir porosity and permeability caused by sand settlement has a significant impact on production. The impact of sand production on reservoir fluid fluidity shows that fluid flow is inhibited near the wellbore, while fluid flow performance increases far away from the wellbore. The numerical model and analysis presented here could provide useful insight into changes in reservoir physical properties and production laws caused by sand production in the natural gas hydrate-bearing marine sediments using depressurization method. |
| format | Article |
| id | doaj-art-c9427ebafe0b4514887412d8774aa619 |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-c9427ebafe0b4514887412d8774aa6192025-02-03T00:58:50ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/66476476647647Study on the Influence of Sand Production on Seepage Capacity in Natural Gas Hydrate ReservoirsYongmao Hao0Jikai Liang1Chuixian Kong2Mingwu Fan3Hongzhi Xu4Fan Yang5Shiwei Yang6Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, ChinaResearch Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, ChinaCNPC Offshore Engineering Company Limited, Beijing 100028, ChinaCNPC Offshore Engineering Company Limited, Beijing 100028, ChinaKey Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, ChinaSand production has become a common phenomenon in the exploitation of unconsolidated natural gas hydrate reservoirs, which will hinder the long-term production of natural gas hydrate reservoirs. However, there are few literatures reported on the influences in reservoir physical properties such as permeability and porosity, and production laws caused by sand production. This paper provides a numerical model, coupled with reservoir sand-gas-water multiphase flow processes, which is capable to simulate the process of sand production in natural gas hydrate reservoirs. The simulation results indicate that sand settlement is mainly concentrated near the wellbore due to the high concentration of migrated sand. The decrease in reservoir porosity and permeability caused by sand settlement has a significant impact on production. The impact of sand production on reservoir fluid fluidity shows that fluid flow is inhibited near the wellbore, while fluid flow performance increases far away from the wellbore. The numerical model and analysis presented here could provide useful insight into changes in reservoir physical properties and production laws caused by sand production in the natural gas hydrate-bearing marine sediments using depressurization method.http://dx.doi.org/10.1155/2021/6647647 |
| spellingShingle | Yongmao Hao Jikai Liang Chuixian Kong Mingwu Fan Hongzhi Xu Fan Yang Shiwei Yang Study on the Influence of Sand Production on Seepage Capacity in Natural Gas Hydrate Reservoirs Geofluids |
| title | Study on the Influence of Sand Production on Seepage Capacity in Natural Gas Hydrate Reservoirs |
| title_full | Study on the Influence of Sand Production on Seepage Capacity in Natural Gas Hydrate Reservoirs |
| title_fullStr | Study on the Influence of Sand Production on Seepage Capacity in Natural Gas Hydrate Reservoirs |
| title_full_unstemmed | Study on the Influence of Sand Production on Seepage Capacity in Natural Gas Hydrate Reservoirs |
| title_short | Study on the Influence of Sand Production on Seepage Capacity in Natural Gas Hydrate Reservoirs |
| title_sort | study on the influence of sand production on seepage capacity in natural gas hydrate reservoirs |
| url | http://dx.doi.org/10.1155/2021/6647647 |
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