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Study of the Law about Water-Cut Variation for the Fractured Metamorphic Reservoir of Buried Hill with Bottom Water

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Author(s): Shenggao QIN | Yanling SUN | Zhenqi JIA | Dagang YANG

Journal: Energy and Power Engineering
ISSN 1949-243X

Volume: 01;
Issue: 01;
Start page: 44;
Date: 2009;
Original page

Keywords: metamorphic reservoir | bottom water | buried hill reservoir | water-cut

ABSTRACT
Aiming at the complex flowing environment including the buried hill of Metamorphite, the active bottom water and the fracture at Budate Reservoir within Beir Depression of the Hailar Basin, combining the laboratory studies and based on analysis of its drive mechanism, field wells’ parameters were used to analyze the effects of different conditions of the fractured metamorphic reservoir with bottom water on its law of wa-ter-cut variation and the waterflooding efficiency. The results show that for the Budate buried hill reservoir with bottom water, the gravity should be taken into consideration to determine reasonable perforation ratio and production pressure difference. And because of the acid sensitivity of the buried hill reservoir, application of proper clay stabilizer will enhance the field oil recovery to a satisfactory extent.
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