Application of multilateral wells with limited sand production to heavy oil reservoirs

Autor: Fujie Sun, Xiang-lin Zeng, Shouwei Zhou, Maojun Fang
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Petroleum Exploration and Development, Vol 35, Iss 5, Pp 630-635 (2008)
ISSN: 1876-3804
Popis: Multilateral wells with limited sand production are proposed to produce offshore heavy oil reservoirs. This technique was studied through lab experiments and numerical simulation. Permeability increases with sand production and formation fines of less than 39 μm diameters are the main fines that jam pore throats and influence permeability the most. For a given total length of branches, productivity slightly decreased with increasing branches, suggesting that the number of branches should not be very higher, two or three are better; and productivity increased with the increase of branch angles, but the increase of productivity decreases. Field test was carried out in NB35-2 oil field and the individual layer deliverability of a multilateral well with limited sand production is three times the multilayer production of the common deviated well. Key words: heavy oil, development technique, moderate sanding, multilateral well
Databáze: OpenAIRE