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Loose sandstone oil and gas fields often experience sand production during development due to factors such as declining formation pressure and increasing water content, which can have a serious impact on oil recovery and production, and even lead to production shutdowns. Taking the Linhe Formation, the main reservoir of Xinghua X Block in Bayan Oilfield, as the research object, based on the classic model of sand production prediction, the TAW-1000 rock mechanics test equipment and sand control screen comprehensive simulation test system were used to carry out the sand production trend analysis and sand control parameter optimization experiments for the target reservoir. Based on model analysis and experimental evaluation, the sand production probability of the reservoir in the early stage of development of Bayan Oilfield block was predicted, and the law of reservoir rock strength changing with saturation rate was clarified. The sand control technology and screen accuracy parameters suitable for the target reservoir were optimized and determined. The study can provide important reference for the sand control technology measures and intervention timing adopted for the development of X block in the target oilfield, and has certain production guidance significance.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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