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The decision-makers pay great attention to a study of pilot tests during all stages of waterflooding development in Daqing oilfield. Many pilot tests have been conducted from the 1960s to the 1990s, including the whole process of waterflooding development, replaced stabilizing oil production, infill drilling adjustment, dense well pattern adjustment test of injection-production system in Gaotaizi reservoir, secondary infill drilling, commercial development of the UOR and polymer flooding pilot tests. These provide a series of methods and experiences for the long and stable oil production in Daqing oilfield. This book makes briefings about some important pilot tests and measures. We hope it would give some contributions to the management and technical personnel engaged in oil field development

1. Whole process of Waterflooding Development test in Single Oil Zone
2. Pilot Test of Replaced Stable Oil Production in Medium-high Water-cut Stage in West Cntral Area of Daqing Oilfield
3. Infill Adjustment Tests in Central, East and West Areas of Saertu Oilfield
4. Adjustment Test of Injection-Production System at High Water Cut Stage
5. Secondary Infill Drilling Adjustment Test
6. Commercial Development Test for Un-tabulated Oil Reservoirs
7. Casing Replacement & Adjustment Tests in Casing Damaged Areas
8. Infill-drilling Test of Thick Reservoirs
9. Polymer Flooding Tests
10. Pilot Test of Micellar-Polymer Flooding in Layer SI4+5 with Small Well Spacing
11. Pilot Test of Water Alternating Gas (WAG) Injection of EOR in Daqing Oilfield
12. Pilot Test of CO2 Injection in the Eastern Transitional Belt of Sanan
13. Pilot Test of EOR by In-situ Microorganism Fermentation in Daqing Oilfield
14. Pilot Test of Steam Soak in Heidimiao Reservoir of Putaohua Structure

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