源断裂对兴安岭群油气成藏的影响及评价

2007年 14卷 第03期
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Inf luence and evaluation of frac ture through source
rocks on the oil and gas reservoir- form ing in we st slope
region
杨一鸣 付 广
Yang Y iming ,Fu Guang.
大庆石油学院, 黑龙江大庆163318
Daqing Petroleum Institute, Daqing
163318, China
在复杂断块地区, 油气的分布和聚集成藏与断裂有着密切的联系。苏德尔特地区兴安岭群断裂比较发育且分布着广泛的源断裂, 即断穿源岩的断裂。为了进一步了解油气运移规律及油气聚集成藏的主控因素, 开展了兴安岭群源断裂的深入研究。通过研究得到, 兴安岭群的油气只能通过断穿南屯组至兴安岭群的源断层进行运移, 才能使南屯组源岩生成排出的油气运移至兴安岭群中; 在兴安岭群中, 源断裂密度越大、距源断裂越近、断距越小的源断裂油气富集程度越高。由此不难看出, 源断裂是控制苏德尔特地区兴安岭区群油藏形成与分布的重要条件。
In the com plicated block reg ion, the o il form ation and
d istr ibu tion are in the connection w ith fault. The d istribution
o f fault is w ide- rang ing in the X ing a’n ling Group in the w est
slope reg ion. Fracture through source rocks is thread source
rock. In order to discern o il and g as transpo rting pa thways
and m ain control fac to r, we deeply research the fracture in the
w est slope reg ion. Through research, w e realize that o il and
gas transporting pathw ay s is only fault betw een Nantun Group
and X ing ’anling Group in w est slope reg ion, so o il and gas
from Nantun G roup rocks are ab le to reach to X ing ’anling
G roup . The m ore b igger density, the m ore closer and the
m ore sho rter d istance from fau lts, the m ore abundant o il and
gas are. So w e can realize that fracture through source rocks
p lay an important part in contro lling o il form ation and
d istr ibu tion in w est slope reg ion.
兴安岭群 源断裂 输导 油气;
w est slope reg ion, fracture through source
rocks, conduit, o il and g as;