Development and application of formation damage mitigation system for heavy oil reservoir
Xi Lu, Lin Meng, Haibo Wang, Changbo Zhai, Tong Zhou, Wenfang Song, Jianfang Sun · 2025
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Description
Xi Lu and six co-authors formulate a chemical wash that undoes two kinds of damage in heavy oil wells, in this 2025 paper. Heavy oil deposits asphaltene in the rock and swells clays, choking flow. Lab experiments replayed the deposition process and measured how clay type and amount cut permeability.
From screens they picked a surfactant and an alcohol as the best viscosity-cutting pair, and an acid blend, hydrochloric with fluoroboric, that dissolved clays fastest. The final system mixes the four at a five-two-eight-twelve ratio. In sandpack tests it restored permeability after combined damage. Field use followed at fifty-six wells in the Shengli Oilfield: over ninety percent gained about thirty-five percent more oil output, while injection pressure fell by forty-two percent. The authors present the system as ready for wider heavy-oil deployment.
Catalog record
| CREATOR | Xi Lu, Lin Meng, Haibo Wang, Changbo Zhai, Tong Zhou, Wenfang Song, Jianfang Sun |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 38 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |