水平井开发薄层特稠油油藏的界限优化研究

Limit Optimizat ion of Thin- Bedded Extra- Heavy Oil Reservoir Developed byHorizontal W ell

(胜利油田有限公司地质科学研究院, 山东东营257075 )

Geological Scient ific Research Institute, Shengli Oilfield Co. Ltd. , SINOPEC,
Dongy ing 257015, China

The cha racte ristics o f heavy o il rese rvo irs are deep
buria,l thin bed, active edge w ater and h igh v iscos ity in
Sheng liO ilfie ld. The third sec tion o f Shahejie Fo rm ation in
B lock Cao128 has been taken as an exam ple in th is paper.
Based on the reservo ir num erica l simu la tion, it is proposed
tha t th is type o f heavy o il reservo ir shou ld be effective ly
developed by ho rizonta l w e lls. Deve lopm ent schem e o f
hor izonta l w ells, net pay in the designed w ell area, the
d istance from the ho rizonta l w e lls to the edge w ate r and
injection - production param eters of hor izonta l w ells hav e
been optim ized. The practice has proved that the researched
lim its a re feasible and the ex cellent econom ic benefits hav e
obta ined.