Tracer Production Profile Characteristics in Qingcheng Oilfield's Shale Oil Reservoirs with Extra-Long Horizontal Wells
Tracer monitoring is a new dynamic monitoring technology that is different from conventional cable logging, which can theoretically achieve a direct and accurate quantitative evaluation of the production profile of horizontal wells. This technology effectively solves the problems of cable logging in...
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Editorial Office of Well Logging Technology
2024-12-01
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| Series: | Cejing jishu |
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| author | ZHUO Hong CHENG Bo WANG Yijun HE Xiuling LIU Ping LI Jie |
| author_facet | ZHUO Hong CHENG Bo WANG Yijun HE Xiuling LIU Ping LI Jie |
| author_sort | ZHUO Hong |
| collection | DOAJ |
| description | Tracer monitoring is a new dynamic monitoring technology that is different from conventional cable logging, which can theoretically achieve a direct and accurate quantitative evaluation of the production profile of horizontal wells. This technology effectively solves the problems of cable logging instruments not being able to go down, not being able to measure accurately, not being able to measure completely, and the risk of wellbore accidents in high-angle and long horizontal wells. It improves the level of development of unconventional oil and gas reservoirs. The horizontal well volume fracturing and quasi-natural energy development are used in Chang7 shale oil reservoir of Qingcheng oilfield. Each well has a long horizontal section, many modification clusters, and a high initial oil production. The production patterns between horizontal sections are not clear. The application of fracturing tracer monitoring for shale oil reservoir super-long horizontal well production in China is unprecedented. By studying the tracer production profile test results of the QH9-X well in the Changqing oilfield, based on the differences in the contribution of each section to production, the relationship between the characteristics of production contribution and geological quality, and the relationship between modification methods, we summarized the production patterns of shale oil reservoir horizontal wells. The results show that sand blockage caused the initial outflow from the toe of the well, uneven return caused the water content to decrease slowly, and uneven pressure distribution caused the outflow times of the sections to be uneven. The dominant sweet spot section is the main contributor to oil production. By studying the production profile characteristics of shale oil reservoir super-long horizontal wells in multiple production conditions, it provides realistic basis for fracturing and production of unconventional oil and gas reservoirs' super-long horizontal wells. |
| format | Article |
| id | doaj-art-a4ff1135ea3841b99dff917d2e54ccb1 |
| institution | Kabale University |
| issn | 1004-1338 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Editorial Office of Well Logging Technology |
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| series | Cejing jishu |
| spelling | doaj-art-a4ff1135ea3841b99dff917d2e54ccb12025-08-20T03:47:40ZzhoEditorial Office of Well Logging TechnologyCejing jishu1004-13382024-12-0148684285310.16489/j.issn.1004-1338.2024.06.0131004-1338(2024)06-0842-12Tracer Production Profile Characteristics in Qingcheng Oilfield's Shale Oil Reservoirs with Extra-Long Horizontal WellsZHUO Hong0CHENG Bo1WANG Yijun2HE Xiuling3LIU Ping4LI Jie5Changqing Branch, China National Logging Corporation, Xi'an, Shaanxi 710201, ChinaLongdong Oil and Gas Development Company, PetroChina Changqing Oilfield Company, Qingyang, Gansu 745000, ChinaLongdong Oil and Gas Development Company, PetroChina Changqing Oilfield Company, Qingyang, Gansu 745000, ChinaChangqing Branch, China National Logging Corporation, Xi'an, Shaanxi 710201, ChinaChangqing Branch, China National Logging Corporation, Xi'an, Shaanxi 710201, ChinaLongdong Oil and Gas Development Company, PetroChina Changqing Oilfield Company, Qingyang, Gansu 745000, ChinaTracer monitoring is a new dynamic monitoring technology that is different from conventional cable logging, which can theoretically achieve a direct and accurate quantitative evaluation of the production profile of horizontal wells. This technology effectively solves the problems of cable logging instruments not being able to go down, not being able to measure accurately, not being able to measure completely, and the risk of wellbore accidents in high-angle and long horizontal wells. It improves the level of development of unconventional oil and gas reservoirs. The horizontal well volume fracturing and quasi-natural energy development are used in Chang7 shale oil reservoir of Qingcheng oilfield. Each well has a long horizontal section, many modification clusters, and a high initial oil production. The production patterns between horizontal sections are not clear. The application of fracturing tracer monitoring for shale oil reservoir super-long horizontal well production in China is unprecedented. By studying the tracer production profile test results of the QH9-X well in the Changqing oilfield, based on the differences in the contribution of each section to production, the relationship between the characteristics of production contribution and geological quality, and the relationship between modification methods, we summarized the production patterns of shale oil reservoir horizontal wells. The results show that sand blockage caused the initial outflow from the toe of the well, uneven return caused the water content to decrease slowly, and uneven pressure distribution caused the outflow times of the sections to be uneven. The dominant sweet spot section is the main contributor to oil production. By studying the production profile characteristics of shale oil reservoir super-long horizontal wells in multiple production conditions, it provides realistic basis for fracturing and production of unconventional oil and gas reservoirs' super-long horizontal wells.https://www.cnpcwlt.com/#/digest?ArticleID=5678shale oilultra-long horizontal wellfracturing traceroutput profileoutput lawqingcheng oilfield |
| spellingShingle | ZHUO Hong CHENG Bo WANG Yijun HE Xiuling LIU Ping LI Jie Tracer Production Profile Characteristics in Qingcheng Oilfield's Shale Oil Reservoirs with Extra-Long Horizontal Wells Cejing jishu shale oil ultra-long horizontal well fracturing tracer output profile output law qingcheng oilfield |
| title | Tracer Production Profile Characteristics in Qingcheng Oilfield's Shale Oil Reservoirs with Extra-Long Horizontal Wells |
| title_full | Tracer Production Profile Characteristics in Qingcheng Oilfield's Shale Oil Reservoirs with Extra-Long Horizontal Wells |
| title_fullStr | Tracer Production Profile Characteristics in Qingcheng Oilfield's Shale Oil Reservoirs with Extra-Long Horizontal Wells |
| title_full_unstemmed | Tracer Production Profile Characteristics in Qingcheng Oilfield's Shale Oil Reservoirs with Extra-Long Horizontal Wells |
| title_short | Tracer Production Profile Characteristics in Qingcheng Oilfield's Shale Oil Reservoirs with Extra-Long Horizontal Wells |
| title_sort | tracer production profile characteristics in qingcheng oilfield s shale oil reservoirs with extra long horizontal wells |
| topic | shale oil ultra-long horizontal well fracturing tracer output profile output law qingcheng oilfield |
| url | https://www.cnpcwlt.com/#/digest?ArticleID=5678 |
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