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- Title
裂缝型油藏水窜特征与封堵体系研制.
- Authors
魏开鹏; 邓学峰; 方群; 斯容
- Abstract
Aiming at the issue of serious water channeling caused by tight reservoir and developed fractures in Chang-8 reservoir of Honghe Oilfield, a high-strength plugging system suitable for fractured reservoirs was developed by analyzing the characteristics of fractures and water channeling. The gelling time was adjustable for 5 - 20 hours, the salt tolerance was 10 X 104 mg/L, and the breakthrough pressure gradient was 5 MPa/m, which was 0. 082 - 0. 125 MPa/m higher than the starting pressure gradient of matrix. The field plugging efficiency is 100%, the water injection pressure is increased by 10. 2 MPa after profile control, and the oil production is increased by 260. 9 t in stages, which effectively solves the issue of water channeling during water injection development in fractured reservoirs.
- Publication
Natural Gas & Oil, 2022, Vol 40, Issue 6, p75
- ISSN
1006-5539
- Publication type
Article
- DOI
10.3969/j.issn.1006-5539.2022.06.011