[1]周露,李勇,蒋俊,等.克拉苏构造带盐下深层断背斜储集层构造裂缝带分布规律[J].新疆石油地质,2019,(01):61.[doi:10.7657/XJPG20190109]
 ZHOU Lu,LI Yong,JIANG Jun,et al.Distribution of Tectonic Fissure Zones in Subsalt Deep Faulted-Anticline Reservoirs in Kelasu Tectonic Belt[J].Xinjiang Petroleum Geology,2019,(01):61.[doi:10.7657/XJPG20190109]
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克拉苏构造带盐下深层断背斜储集层构造裂缝带分布规律()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
期数:
2019年01期
页码:
61
栏目:
出版日期:
2019-02-01

文章信息/Info

Title:
Distribution of Tectonic Fissure Zones in Subsalt Deep Faulted-Anticline Reservoirs in Kelasu Tectonic Belt
文章编号:
1001-3873(2019)01-0061-07
作者:
周露李勇蒋俊李梅莫涛李向云
(中国石油 塔里木油田分公司 勘探开发研究院,新疆 库尔勒 841000)
Author(s):
ZHOU Lu LI Yong JIANG Jun LI Mei MO Tao LI Xiangyun
(Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China)
关键词:
库车坳陷克拉苏构造带低孔砂岩储集层构造裂缝带分布规律
Keywords:
Kuqa depression Kelasu tectonic belt low-porosity sandstone reservoir tectonic fissure zone distribution
分类号:
TE112.23
DOI:
10.7657/XJPG20190109
文献标志码:
A
摘要:
克拉苏构造带是塔里木盆地天然气重点勘探区域,主力含气层系为下白垩统巴什基奇克组,构造裂缝普遍发育,是低孔砂岩储集层高产稳产的关键因素。基于克拉苏构造带盐下深层断背斜储集层构造裂缝发育特征及裂缝带分布规律研究,探索了裂缝带组合与产能的关系,明确了储集层裂缝以未充填—半充填的高角度缝为主,多为张性或张剪性,具有规律性成带分布的特征,裂缝带宽度一般为10~40 m,裂缝带间距一般为10~50 m;根据储集层裂缝带成因及分布规律等差异特征,划分了储集层东西向裂缝带、南北向裂缝带和网状裂缝带3种成因裂缝带;根据储集层裂缝发育特征及裂缝带空间组合特征等差异性,储集层可划分为Ⅰ类高产区、Ⅱ类中高产区和Ⅲ类低产区。
Abstract:
Kelasu tectonic belt is the key area for natural gas exploration in the Tarim basin, and its main gas-bearing series are the Lower Cretaceous Bashijiqike formation where tectonic fissures are generally developed, which is considered as the key factor for the high and stable deliverability of low-porosity sandstone reservoirs. Based on the study of the characteristics of tectonic fissure development and fissure zone distribution in the subsalt deep faulted-anticline reservoirs of Kelasu tectonic belt, the paper studies the relationship between the fissure zone combination and its deliverability, identifies that the reservoir fractures are dominated by unfilled-half-filled high-angle fractures which are mainly tensile fractures or tensile shear fractures and are characterized by zonal distribution with the fracture zone width and interval of 10~40 m and 10~50 m, respectively. According to the differences in genesis and distribution of fracture zones, 3 types of reservoir fracture zones are classified, i.e., E-W trending fracture zone, N-S trending fracture zone and netlike fracture zone. According to the characteristics of reservoir fracture development and fracture zone spatial combination, the reservoir can be divided into 3 kinds of regions, namely Class Ⅰ high-deliverability region, Class Ⅱ medium-high deliverability region and Class Ⅲ low-deliverability region

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更新日期/Last Update: 2019-01-22