Study on the Deformation and Stability of Proppant Column in High-Conductivity Channel Fracturing
The nonlinear constitutive model of the proppant column was established through laboratory experiments on the stability of the proppant column. Based on reservoir geomechanics and the finite element method, a fracture-proppant column interaction model was established for high-conductivity channel fr...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2022/3744053 |
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| _version_ | 1832551206238552064 |
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| author | Ming Wang Feng Zhang Hanxiang Wang |
| author_facet | Ming Wang Feng Zhang Hanxiang Wang |
| author_sort | Ming Wang |
| collection | DOAJ |
| description | The nonlinear constitutive model of the proppant column was established through laboratory experiments on the stability of the proppant column. Based on reservoir geomechanics and the finite element method, a fracture-proppant column interaction model was established for high-conductivity channel fracturing. The effects of in situ stress, reservoir rock elastic parameters, and spatial distribution characteristics of the proppant column on the closure deformation of the high-conductivity fracture channel and the stability of the proppant column were studied. The higher the in situ stress, the higher the contact stress on the rock plate; the lower the height and the larger the diameter of the proppant column, the more prone to deformation and breakage, while the more the effective support decreases with the increase of the in situ stress. Under the condition of constant in situ stress, with the increase of the reservoir elastic modulus, the relative axial displacement of the two slabs decreases gradually, the effective propping ratio of fractures increases, and the reservoir elastic modulus has little effect on the stability of the proppant column. The effective propping ratio decreases with the increase of the proppant column diameter, increases with the increase of the proppant column height, and increases with the increase of the ratio of the reservoir elastic modulus to in situ stress. When the proppant column diameter (proppant column spacing) is less than 3 m, the effective propped fracture ratio increases significantly. Through the above research, the optimal proppant cluster diameter was finally optimized. |
| format | Article |
| id | doaj-art-9db810c4a2d54922a2598a2724713a37 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-9db810c4a2d54922a2598a2724713a372025-02-03T06:04:48ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/3744053Study on the Deformation and Stability of Proppant Column in High-Conductivity Channel FracturingMing Wang0Feng Zhang1Hanxiang Wang2Shandong Institute of Petrochemical TechnologyChina University of Petroleum (East China)China University of Petroleum (East China)The nonlinear constitutive model of the proppant column was established through laboratory experiments on the stability of the proppant column. Based on reservoir geomechanics and the finite element method, a fracture-proppant column interaction model was established for high-conductivity channel fracturing. The effects of in situ stress, reservoir rock elastic parameters, and spatial distribution characteristics of the proppant column on the closure deformation of the high-conductivity fracture channel and the stability of the proppant column were studied. The higher the in situ stress, the higher the contact stress on the rock plate; the lower the height and the larger the diameter of the proppant column, the more prone to deformation and breakage, while the more the effective support decreases with the increase of the in situ stress. Under the condition of constant in situ stress, with the increase of the reservoir elastic modulus, the relative axial displacement of the two slabs decreases gradually, the effective propping ratio of fractures increases, and the reservoir elastic modulus has little effect on the stability of the proppant column. The effective propping ratio decreases with the increase of the proppant column diameter, increases with the increase of the proppant column height, and increases with the increase of the ratio of the reservoir elastic modulus to in situ stress. When the proppant column diameter (proppant column spacing) is less than 3 m, the effective propped fracture ratio increases significantly. Through the above research, the optimal proppant cluster diameter was finally optimized.http://dx.doi.org/10.1155/2022/3744053 |
| spellingShingle | Ming Wang Feng Zhang Hanxiang Wang Study on the Deformation and Stability of Proppant Column in High-Conductivity Channel Fracturing Geofluids |
| title | Study on the Deformation and Stability of Proppant Column in High-Conductivity Channel Fracturing |
| title_full | Study on the Deformation and Stability of Proppant Column in High-Conductivity Channel Fracturing |
| title_fullStr | Study on the Deformation and Stability of Proppant Column in High-Conductivity Channel Fracturing |
| title_full_unstemmed | Study on the Deformation and Stability of Proppant Column in High-Conductivity Channel Fracturing |
| title_short | Study on the Deformation and Stability of Proppant Column in High-Conductivity Channel Fracturing |
| title_sort | study on the deformation and stability of proppant column in high conductivity channel fracturing |
| url | http://dx.doi.org/10.1155/2022/3744053 |
| work_keys_str_mv | AT mingwang studyonthedeformationandstabilityofproppantcolumninhighconductivitychannelfracturing AT fengzhang studyonthedeformationandstabilityofproppantcolumninhighconductivitychannelfracturing AT hanxiangwang studyonthedeformationandstabilityofproppantcolumninhighconductivitychannelfracturing |