东庄油田复杂断块油藏开发评价研究

东庄油田为低渗透复杂断块油藏,发育9个小断块,含油面积4.3 km2,石油地质储量259×104t。储层物性差,埋藏深,原油含蜡高,凝固点高。因储量品位低,开发难度大,发现30多年未投入开发。针对东庄油田的地质特点,对其经济有效开发的可行性,注水开发的适应性、井网井距、合理压力水平以及单井产能进行了分析,提出油田开发的实施技术路线。

A Development Evaluation of Complex Fault Block Reservoirs in Dongzhuang Oilfield

Dongzhuang oilfield, a complex fault block reservoir with low permeability, has 9 small fault blocks with a total oil - bearing area of 4. 4km2 and geological reserves of 2. 59 million tons. The deeply buried reservoirs have poor physical properties and contain crude oil with high wax content and high solidification point This oilfield has not been put on for its development is very difficult, though it has been discovered over 30 years ago. In viewing of the geologic features of this oilfield, this paper analyzes the feasibility of economic and effective development of this oilfield, adaptability of waterflooding, well pattern and well spacing, rational pressure level and single well production capacity.