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关于童氏乙型水驱特征经验公式的探讨
郑摇可^1,2, 徐怀民^1,2, 陈建文³
(1. 中国石油大学地球科学学院,北京102249; 2. 中国石油大学油气资源与探测国家重点实验室,北京102249;3. 中国石油长庆油田分公司超低渗透油藏研究中心,西安710021)

摘要:

对目前广泛运用的童宪章水驱经验公式进行推导,在此基础上研究水驱特征曲线在矿场应用中存在的问题,对该经验公式进行修正,并提出计算水驱地质储量的新方法。根据中国3个油田共7个油藏的实际生产数据资料对提出的方法进行验证。结果表明:利用童宪章水驱经验公式预测的油藏最终采收率结果偏大,计算的水驱地质储量结果有误;利用修正后的方法计算的水驱地质储量更接近于用容积法计算的地质储量。

关键词: 油藏水驱特征曲线含水饱和度含水率最终采收率地质储量

DOI：10.3969/j.issn.1673-5005.2013.01.016

分类号::TE 341

基金项目:国家科技重大专项(2011Z05009-003)

Study on Tong 's B-type water drive characteristics　empirical formula

ZHENG Ke^1,2, XU Huai-min^1,2, CHEN Jian-wen³

(1.School of Geosciences in China University of Petroleum, Beijing 102249, China;2.State Key Laboratory of Petroleum Resources and Prospecting in China University of Petroleum,Beijing 102249,China;3.Research Center of Ultra-low Permeability Reservoir, Changqing Oilfield Company, PetroChina,Xi 'an 710021, China)

Abstract:

The water drive empirical formula proposed by TONG Xian-zhang was derived firstly, which is widely used currently. The problems in the field application of water drive curves were studied. A new method for calculating water drive geological reserves was developed. Actual production data of seven reservoirs in three oilfields were used to verify the new method. The results show that the reservoir ultimate recovery predicted by TONG Xian-zhang water drive empirical formula is on the high side, and the calculated water drive geological reserves have error. The water drive geological reserves calculated by the revised method are close to that calculated by volumetric method.

Key words: reservoir water drive curve water saturation water cut ultimate oil recovery efficiency geological reserves