We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
塔里木盆地克拉苏构造带西部构造变形规律与 油气勘探方向.
- Authors
杨海军; 孙雄伟; 潘杨勇; 唐永亮; 李向云; 屈元基; 金江宁; 吴俊霖
- Abstract
The western section of Kelasu tectonic zone in the Kuqa Depression of the Tarim Basin is faced with a series of difficulties such as complicated deformation, poor deep reservoir seismic imaging, difficult trap discovery and confirmation and low oil & gas exploration and development degree. In order to speed up the oil and gas exploration in this area, this paper analyzed the structural deformation characteristics in different sections of the Kelasu tectonic zone based on previous research results, combined with the latest drilling information and high-quality 3D seismic data. Then, differential structural deformation laws, structural deformation characteristics and structural patterns of the Kelasu tectonic zone were studied, and the reasons for the intensive development of pop-up structures in the Keshen fault belt were analyzed. Finally, the oil & gas exploration direction in this area in the next step was pointed out. And the following research results were obtained. First, the differential structural deformation laws are controlled by three major factors in different sections, namely plastic gypsum-salt rock, regional compression stress and basement pre-structure. Second, under the effect of twin salt lakes, wedge-shaped thrust imbricated structures are developed in the Dabei Block. Third, the Bozi–Dabei Block is under the joint effect of oblique compressions, twin salt lakes and paleo-uplifts, and complete pop-up structures, large-scale echelon nappe structures and wedge-shaped thrust imbricated structures are developed. Fourth, the Bozi Block is hindered mainly by the paleo-uplift, and broken popup structures are developed. Fifth, the structural transition zone of Awate–Bozi Block is mainly affected by oblique compression stress and single salt lake, and wedge-shaped thrust imbricated structures are developed. In conclusion, pop-up structure group and echelon trap group that are generally developed in the Keshen fault belt and the Baicheng fault belt have huge oil & gas exploration and development potential, so they are the important exploration objects in this area.
- Subjects
PETROLEUM prospecting; NATURAL gas prospecting; SALT lakes; IMAGING systems in seismology; PETROLEUM industry; GAS condensate reservoirs
- Publication
Natural Gas Industry, 2020, Vol 40, Issue 1, p31
- ISSN
1000-0976
- Publication type
Article
- DOI
10.3787/j.issn.1000-0976.2020.01.004