Profitable development technology of the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin and its enlightenment
Since the approval to establishment, the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin (hereinafter referred to as Demonstration Area) has been built up into a shale gas industry demonstration base characterized with scale, technology, management and green after more t...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2023-02-01
|
| Series: | Natural Gas Industry B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352854023000104 |
| _version_ | 1797279806579015680 |
|---|---|
| author | Rui Yong Gengsheng Chen Xuefeng Yang Shan Huang Bo Li Majia Zheng Wenping Liu Yiping He |
| author_facet | Rui Yong Gengsheng Chen Xuefeng Yang Shan Huang Bo Li Majia Zheng Wenping Liu Yiping He |
| author_sort | Rui Yong |
| collection | DOAJ |
| description | Since the approval to establishment, the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin (hereinafter referred to as Demonstration Area) has been built up into a shale gas industry demonstration base characterized with scale, technology, management and green after more than 10 years of exploration and practice. Its successful experience is of great guiding significance to the efficient development of unconventional oil and gas resources in China. In this paper, the technologies which were developed for the beneficial development of the Demonstration Area during the 13th Five-Year Plan are systematically reviewed and summarized. Then, some countermeasures are proposed to solve the difficulties and challenges to the long-term benefit and stable production of middle-deep shale gas in this area. And the following research results are obtained. First, during the construction of the Demonstration Area, the “three-control” shale gas enrichment and high-production theory is innovatively proposed, and the shale gas enrichment model in the southern Sichuan Basin is clarified. Second, a high-production well cultivation method based on geology-engineering integration is established by developing six main technologies for shale gas exploration and development, which effectively supports the large-scale beneficial development of shale gas in the Demonstration Area. Third, the beneficial development model of middle-deep shale gas in the southern Sichuan Basin is preliminarily formed, and the benefit and efficiency of productivity construction are improved comprehensively. Fourth, the three measures of “controlling the decline rate, enhancing the reserve production and expanding the periphery” are used to support the replacement and stable production of middle-deep shale gas. In conclusion, to sustainably ensure the long-term benefit and stable production of shale gas in the southern Sichuan Basin, it is still necessary to deepen fine reservoir description and complex mechanism understanding and explore EOR technologies. What's more, the important mean to improve the single-well shale gas production rate in this area is to strengthen the fine fracturing design and implementation under the deep integration of geology and engineering and improve the construction quality of fracturing network continuously. Furthermore, the only way to the low-cost development of the demonstration area is to promote the management reform and innovation continuously and improve the beneficial development model further. |
| first_indexed | 2024-03-07T16:31:22Z |
| format | Article |
| id | doaj.art-43028606a09b4e899771916e40a0be46 |
| institution | Directory Open Access Journal |
| issn | 2352-8540 |
| language | English |
| last_indexed | 2024-03-07T16:31:22Z |
| publishDate | 2023-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Natural Gas Industry B |
| spelling | doaj.art-43028606a09b4e899771916e40a0be462024-03-03T10:14:58ZengKeAi Communications Co., Ltd.Natural Gas Industry B2352-85402023-02-011017385Profitable development technology of the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin and its enlightenmentRui Yong0Gengsheng Chen1Xuefeng Yang2Shan Huang3Bo Li4Majia Zheng5Wenping Liu6Yiping He7PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan 610051, ChinaPetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan 610051, ChinaShale Gas Research Institute, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan 610051, ChinaShale Gas Research Institute, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan 610051, ChinaShale Gas Research Institute, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan 610051, China; Corresponding author.PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan 610051, ChinaPetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan 610051, ChinaChuan-Yu Shale Gas Frontline Command Post, PetroChina, Sichuan 610051, ChinaSince the approval to establishment, the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin (hereinafter referred to as Demonstration Area) has been built up into a shale gas industry demonstration base characterized with scale, technology, management and green after more than 10 years of exploration and practice. Its successful experience is of great guiding significance to the efficient development of unconventional oil and gas resources in China. In this paper, the technologies which were developed for the beneficial development of the Demonstration Area during the 13th Five-Year Plan are systematically reviewed and summarized. Then, some countermeasures are proposed to solve the difficulties and challenges to the long-term benefit and stable production of middle-deep shale gas in this area. And the following research results are obtained. First, during the construction of the Demonstration Area, the “three-control” shale gas enrichment and high-production theory is innovatively proposed, and the shale gas enrichment model in the southern Sichuan Basin is clarified. Second, a high-production well cultivation method based on geology-engineering integration is established by developing six main technologies for shale gas exploration and development, which effectively supports the large-scale beneficial development of shale gas in the Demonstration Area. Third, the beneficial development model of middle-deep shale gas in the southern Sichuan Basin is preliminarily formed, and the benefit and efficiency of productivity construction are improved comprehensively. Fourth, the three measures of “controlling the decline rate, enhancing the reserve production and expanding the periphery” are used to support the replacement and stable production of middle-deep shale gas. In conclusion, to sustainably ensure the long-term benefit and stable production of shale gas in the southern Sichuan Basin, it is still necessary to deepen fine reservoir description and complex mechanism understanding and explore EOR technologies. What's more, the important mean to improve the single-well shale gas production rate in this area is to strengthen the fine fracturing design and implementation under the deep integration of geology and engineering and improve the construction quality of fracturing network continuously. Furthermore, the only way to the low-cost development of the demonstration area is to promote the management reform and innovation continuously and improve the beneficial development model further.http://www.sciencedirect.com/science/article/pii/S2352854023000104Sichuan BasinChangning-WeiyuanNational Shale Gas Demonstration AreaMiddle-deep formationResource enrichment and high-productionGeology-engineering integration |
| spellingShingle | Rui Yong Gengsheng Chen Xuefeng Yang Shan Huang Bo Li Majia Zheng Wenping Liu Yiping He Profitable development technology of the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin and its enlightenment Natural Gas Industry B Sichuan Basin Changning-Weiyuan National Shale Gas Demonstration Area Middle-deep formation Resource enrichment and high-production Geology-engineering integration |
| title | Profitable development technology of the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin and its enlightenment |
| title_full | Profitable development technology of the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin and its enlightenment |
| title_fullStr | Profitable development technology of the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin and its enlightenment |
| title_full_unstemmed | Profitable development technology of the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin and its enlightenment |
| title_short | Profitable development technology of the Changning-Weiyuan National Shale Gas Demonstration Area in the Sichuan Basin and its enlightenment |
| title_sort | profitable development technology of the changning weiyuan national shale gas demonstration area in the sichuan basin and its enlightenment |
| topic | Sichuan Basin Changning-Weiyuan National Shale Gas Demonstration Area Middle-deep formation Resource enrichment and high-production Geology-engineering integration |
| url | http://www.sciencedirect.com/science/article/pii/S2352854023000104 |
| work_keys_str_mv | AT ruiyong profitabledevelopmenttechnologyofthechangningweiyuannationalshalegasdemonstrationareainthesichuanbasinanditsenlightenment AT gengshengchen profitabledevelopmenttechnologyofthechangningweiyuannationalshalegasdemonstrationareainthesichuanbasinanditsenlightenment AT xuefengyang profitabledevelopmenttechnologyofthechangningweiyuannationalshalegasdemonstrationareainthesichuanbasinanditsenlightenment AT shanhuang profitabledevelopmenttechnologyofthechangningweiyuannationalshalegasdemonstrationareainthesichuanbasinanditsenlightenment AT boli profitabledevelopmenttechnologyofthechangningweiyuannationalshalegasdemonstrationareainthesichuanbasinanditsenlightenment AT majiazheng profitabledevelopmenttechnologyofthechangningweiyuannationalshalegasdemonstrationareainthesichuanbasinanditsenlightenment AT wenpingliu profitabledevelopmenttechnologyofthechangningweiyuannationalshalegasdemonstrationareainthesichuanbasinanditsenlightenment AT yipinghe profitabledevelopmenttechnologyofthechangningweiyuannationalshalegasdemonstrationareainthesichuanbasinanditsenlightenment |