濮城油田南区沙二下油藏濮53块调整治理效果及认识

Result and Understanding of Adjusting and Treating of Pu53 Block of South S2x Reservoir in Pucheng Oilfield

 张艳萍；吴凤英；渠玉兵；岳玉红；姜淑霞；王建欣

Zhang Yanping , Wu Fengy ing and Qu Yubing et al.

 中原油田分公司采油二厂

The No12 Oil Production Plant, Zhongyuan O ilf ield Company, S INOPEC, Puyang
457506, China

 　 濮城油田南区沙二下油藏濮53块是一个多油层非均质的油藏,由于层间强烈的非均质性和长井段大渗透率级差多油层合采合注,导致Ⅰ类主力油层采出程度高、水淹严重,Ⅱ、Ⅲ类非主力油层水驱动用低、采出程度低。通过对油藏构造、储层特征精细描述和油藏剩余油分布精细研究,依靠多元化的分层配套挖潜技术,在濮53块细分了Ⅰ类层和Ⅱ、Ⅲ类层的注采井网,扩大注水波及体积,提高了Ⅱ、Ⅲ类层的水驱控制储量和动用储量从而提高区块的采收率。

The Pu53 block of South S2x reservoir in Pucheng oilfield
is a heterogeneity and many oil stratums reservoir. Because of
existing sharp ly heterogeneous and huge ratio of penetrable in
longwell section, it resulted that the first type of main force
oil stratums appeared high p roduction extent and serious water
flooding1 But the second or third type of oil stratums appeared
low level of hydraulic driving extent and p roduction extent. By
studying and analyzing the structure of reservoir, characteristic
of reservoir layers and the distributed law of surp lus oil,
depending on polybasic comp lete set of the technology for dig
potential and stratification of the reservoir, the well nets of the
first type of main force oil stratums and the second or third
type of oil stratumswere subdivided, the injection water sp read
over volumewas broadened, the quantity of the control and use
of water flooding oil were imp roved. Finally, the ratio of
p roduction of the block was imp roved.