Evaluation Method of Perforation Penetration Depth Based on Acoustic Logging Technology
In order to improve oil and gas recovery and effectively guide hydraulic fracturing design, it is very important to evaluate perforation effect by perforation penetration depth in hydraulic fracturing design and oil recovery efficiency prediction. In this paper, a method for quantitative evaluation...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Well Logging Technology
2025-02-01
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| Series: | Cejing jishu |
| Subjects: | |
| Online Access: | https://www.cnpcwlt.com/en/#/digest?ArticleID=5712 |
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| Summary: | In order to improve oil and gas recovery and effectively guide hydraulic fracturing design, it is very important to evaluate perforation effect by perforation penetration depth in hydraulic fracturing design and oil recovery efficiency prediction. In this paper, a method for quantitative evaluation of perforation depth using acoustic logging in perforated intervals is proposed. A perforated casing well model for field test configuration is established, and the finite difference method is used to simulate the elastic wave propagation of the model well excited by the borehole monopole sound source; after multiple regression analysis, the simulation results show the relationship between perforation penetration depth, P-wave arrival time delay and formation slowness. For commonly used long-distance acoustic logging tools, the P-wave arrival time delay caused by perforation is linearly related to the penetration depth. On this basis, this relationship is verified by using the simulated acoustic logging data of the perforated stratigraphic section. The research in this paper shows that by combining the geological parameters of block reservoirs and using the P-wave arrival time data measured by commonly used long distance acoustic logging tools, quantitative calculation of perforation penetration depth can be achieved. |
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| ISSN: | 1004-1338 |