Effect of Thrust Structural Pattern on Carbonate Reservoir and Gas Reservoir Type in the East of Amu Darya Right Bank

Liangjie Zhang, Hongjun Wang, Xingyang Zhang, Wenxin Ma, Laiyong Cao, Hongwei Zhang

2018

Abstract

The Amu Darya Right Bank is located in the northern part of Turkmenistan. Middle-Lower Jurassic coal-bearing deposits, Middle-Upper Jurassic carbonate rocks and Upper Jurassic salt rocks are the major sedimentary assemblages. The east of the right bank is located in the Southwestern Gissar thrust belt, and the reservoir is the most important risk factor. Based on the fault-related folds theory, have analyzed the structural pattern of the thrust - fold belt, figured out their effects on development of fractures and carbonate reservoirs, and influence on natural gas accumulation. The study shows that breakthrough fault-propagation folds and fault-bend folds dominate the east. With structural highs far away from the primary fault, breakthrough fault-propagation folds have abundant fractures, but weak dissolution, where the reservoirs and gas pools are mostly fracture-pore type, the wells have low production, and the water/gas ratio increases with the increase of distance from the primary fault. Fault-bend folds have structural highs close to the primary fault, abundant fractures, and strong dissolution by deep hydrothermal fluid, so the reservoirs and gas pools in them are mostly fracture-cave type, with high production of well. After comprehensive analysis, it is suggested to adopt deviated wells on breakthrough fault-propagation folds, and vertical wells on structural highs of fault-bend folds.

Paper Citation

in Harvard Style

Zhang L., Wang H., Zhang X., Ma W., Cao L. and Zhang H. (2018). Effect of Thrust Structural Pattern on Carbonate Reservoir and Gas Reservoir Type in the East of Amu Darya Right Bank.In Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG, ISBN 978-989-758-342-1, pages 239-248. DOI: 10.5220/0007428702390248

in Bibtex Style

@conference{iweg18,
author={Liangjie Zhang and Hongjun Wang and Xingyang Zhang and Wenxin Ma and Laiyong Cao and Hongwei Zhang},
title={Effect of Thrust Structural Pattern on Carbonate Reservoir and Gas Reservoir Type in the East of Amu Darya Right Bank},
booktitle={Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,},
year={2018},
pages={239-248},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007428702390248},
isbn={978-989-758-342-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,
TI - Effect of Thrust Structural Pattern on Carbonate Reservoir and Gas Reservoir Type in the East of Amu Darya Right Bank
SN - 978-989-758-342-1
AU - Zhang L.
AU - Wang H.
AU - Zhang X.
AU - Ma W.
AU - Cao L.
AU - Zhang H.
PY - 2018
SP - 239
EP - 248
DO - 10.5220/0007428702390248