石油与天然气地质 ›› 2010, Vol. 31 ›› Issue (1): 33-37.doi: 10.11743/ogg20100105

• 塔河油田 • 上一篇    下一篇

缝洞型碳酸盐岩油藏水驱曲线特征——以塔河油田奥陶系油藏为例

陈青2, 易小燕2, 闫长辉1,2, 王旭2   

  1. 1. 成都理工大学, 油气藏地质及开发工程国家重点实验室, 四川, 成都, 610059;
    2. 成都理工大学, 能源学院, 四川, 成都, 610059
  • 收稿日期:2009-07-31 出版日期:2010-02-25 发布日期:2012-01-16

Water drive curves of fractured-vuggy carbonate rock reservoirs——taking the Ordovician carbonate reservoirs in Tahe oilfield as an example

Chen Qing2, Yi Xiaoyan2, Yan Changhui1,2, Wang Xu2   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China;
    2. College of Energy Resources, Chengdu University of Technology, Chengdu, Sichuan 610059, China
  • Received:2009-07-31 Online:2010-02-25 Published:2012-01-16

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摘要：

水驱曲线法在我国已广泛地应用了多年,无论是理论还是实践一般仅限于砂岩油藏,而碳酸盐岩油藏水驱特征比砂岩油藏更复杂,多变。以塔河油田奥陶系碳酸盐岩油藏为例,通过水驱曲线的形态,归纳水驱曲线具有3种类型:单一直线段、两直线段(呈台阶状),不规则的水驱曲线。其中,台阶状反映了碳酸盐岩油藏具有缝洞发育、水体能量不稳定、水驱规律复杂的特征,并具有能量下降波及不同水体。通过典型井的水分析资料,验证了同一个缝洞单元内存在多个水体供给能量。

关键词: 水驱曲线, 水驱规律, 碳酸盐岩, 缝洞型油藏, 奥陶系, 塔河油田

Abstract:

Although widely applied in China for years,the application of water drive curve method has been ge-nerally limited to the study of sandstone reservoirs both in theory and practice.This time,however,it is used in the study of the Ordovician carbonate reservoirs in the Tahe Oilfield.The water drive performance of carbonate reservoirs is much more complicated and changeable than that of sandstone reservoirs.Three types of curves are observed in the study of these reservoirs,including regular curve with single linear portion,regular curve with two linear portions(step-like curve),and irregular curve.Among them,the second one reflects such features of these reservoirs as well-developed fracture and vugs,unstable water body energy,and complicated water-driving pattern.It also indicates that the decline of energy affects different water bodies.An analysis of water from a typical well verifies the existence of several water bodies in one fractured-vuggy unit.

Key words: water drive curve, regular pattern of water drive, carbonate rock, fractured-vuggy reservoir, Ordovician, Tahe oilfield

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