Field Application of Chelatants in the Handling of ASP-Flooding Produced Fluid
- Jiecheng Cheng (PetroChina Daqing Oilfield Limited Company) | Di Wu (PetroChina Daqing Oilfield Engineering Company, Limited) | Wenjie Liu (PetroChina Daqing Oilfield Engineering Company, Limited) | Xiangchun Meng (PetroChina Daqing Oilfield Engineering Company, Limited) | Fuxiang Sun (PetroChina Daqing Oilfield Engineering Company, Limited) | Fengling Zhao (PetroChina Daqing Oilfield Engineering Company, Limited) | Qiushi Zhao (PetroChina Daqing Oilfield Engineering Company, Limited) | Neng Jiang (PetroChina Daqing Oilfield Engineering Company, Limited)
- Document ID
- Society of Petroleum Engineers
- SPE Projects, Facilities & Construction
- Publication Date
- September 2011
- Document Type
- Journal Paper
- 115 - 123
- 2011. Society of Petroleum Engineers
- 2.5.2 Fracturing Materials (Fluids, Proppant), 4.1.5 Processing Equipment, 4.1.2 Separation and Treating, 5.4.7 Chemical Flooding Methods (e.g., Polymer, Solvent, Nitrogen, Immiscible CO2, Surfactant, Vapex), 4.3.4 Scale, 3.4.1 Inhibition and Remediation of Hydrates, Scale, Paraffin / Wax and Asphaltene
- scale, chelatant, suspended solid, produced water, ASP flooding
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- 505 since 2007
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Suspended-solid (SS) particles in the produced water of the X2M alkaline/surfactant/polymer (ASP) flooding project were separated by membrane filtration and identified to consist mainly of alkali-earth-metal carbonates and silica precipitates. A compound formulation of chelatants was developed to stabilize the water phase of ASP-flooding produced fluid and prevent or reduce precipitation of both alkali-earth-metal carbonates and silica. The compound chelatant was put into a limited field trial in the surface production system of the X2M ASP-flooding project to evaluate its effects on the quality of treated produced water. The average SS content of treated ASP-flooding produced water was decreased to below the 20-ppm SS specification limit for reinjection by a dosage of chelatant at 480 ppm or higher. Scale-removal performance of the compound chelatant was also observed during the field trial.
|File Size||1 MB||Number of Pages||9|
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