Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area, Sichuan Basin, SW China: Restoration and geological significance
Based on 3-D seismic data and drill-hole data in Moxi-Gaoshiti area, the impression seismic thickness from the top of Longwangmiao Formation, which is easier traced, to the bottom of Cambrian System was selected to characterize the karst paleogeomorphology of the fourth Member of Dengying Formation....
Main Authors: | , , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
KeAi Communications Co., Ltd.
2017-02-01
|
Series: | Petroleum Exploration and Development |
Online Access: | http://www.sciencedirect.com/science/article/pii/S1876380417300083 |
id |
doaj-75b864662a944aaca590584c47c2c740 |
---|---|
record_format |
Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mindong JIN Xiucheng TAN Mingsheng TONG Wei ZENG Hong LIU Bo ZHONG Qingsong LIU Chengbo LIAN Xinghe ZHOU Hu XU Bing LUO |
spellingShingle |
Mindong JIN Xiucheng TAN Mingsheng TONG Wei ZENG Hong LIU Bo ZHONG Qingsong LIU Chengbo LIAN Xinghe ZHOU Hu XU Bing LUO Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area, Sichuan Basin, SW China: Restoration and geological significance Petroleum Exploration and Development |
author_facet |
Mindong JIN Xiucheng TAN Mingsheng TONG Wei ZENG Hong LIU Bo ZHONG Qingsong LIU Chengbo LIAN Xinghe ZHOU Hu XU Bing LUO |
author_sort |
Mindong JIN |
title |
Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area, Sichuan Basin, SW China: Restoration and geological significance |
title_short |
Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area, Sichuan Basin, SW China: Restoration and geological significance |
title_full |
Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area, Sichuan Basin, SW China: Restoration and geological significance |
title_fullStr |
Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area, Sichuan Basin, SW China: Restoration and geological significance |
title_full_unstemmed |
Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area, Sichuan Basin, SW China: Restoration and geological significance |
title_sort |
karst paleogeomorphology of the fourth member of sinian dengying formation in gaoshiti-moxi area, sichuan basin, sw china: restoration and geological significance |
publisher |
KeAi Communications Co., Ltd. |
series |
Petroleum Exploration and Development |
issn |
1876-3804 |
publishDate |
2017-02-01 |
description |
Based on 3-D seismic data and drill-hole data in Moxi-Gaoshiti area, the impression seismic thickness from the top of Longwangmiao Formation, which is easier traced, to the bottom of Cambrian System was selected to characterize the karst paleogeomorphology of the fourth Member of Dengying Formation. The paleogeomorphology of the member can be further divided into three geomorphic units: karst platform, slope and superimposed slope, which had different paleohydrologic conditions, and thus different karstification intensity and reservoir quality. Among them, the superimposed slope with the strongest dissolution, has larger solution groove and cave systems, where the reservoirs with mainly honeycombed dissolved pores and cavities as storage space, are best in quality; the platform slope with weaker dissolution, has smaller solution groove and cave systems, where the reservoirs are poorer than those in the superimposed slope; the karst platform with the weakest dissolution, has piebald karst systems mainly, where the reservoirs with mainly pinhole to smaller dissolved pores and cavities as storage space, are poorer in quality on the whole, but there are some good quality reservoir bodies in local areas. The results show that, besides the highly explored scarp belt, the slope in the intra-platform with low exploration degree can also be favorable exploration area of the fourth member of Dengying Formation. Key words: paleogeomorphology, karst platform, slope, superimposed slope, Cambrian Longwangmiao Formation, Sinian Dengying Formation, Moxi-Gaoshiti area, Sichuan Basin |
url |
http://www.sciencedirect.com/science/article/pii/S1876380417300083 |
work_keys_str_mv |
AT mindongjin karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT xiuchengtan karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT mingshengtong karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT weizeng karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT hongliu karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT bozhong karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT qingsongliu karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT chengbolian karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT xinghezhou karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT huxu karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance AT bingluo karstpaleogeomorphologyofthefourthmemberofsiniandengyingformationingaoshitimoxiareasichuanbasinswchinarestorationandgeologicalsignificance |
_version_ |
1724297151253577728 |
spelling |
doaj-75b864662a944aaca590584c47c2c7402021-02-02T08:26:53ZengKeAi Communications Co., Ltd.Petroleum Exploration and Development1876-38042017-02-014415868Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area, Sichuan Basin, SW China: Restoration and geological significanceMindong JIN0Xiucheng TAN1Mingsheng TONG2Wei ZENG3Hong LIU4Bo ZHONG5Qingsong LIU6Chengbo LIAN7Xinghe ZHOU8Hu XU9Bing LUO10Southwest Petroleum University, Chengdu 610500, China; Key Laboratory of Natural Gas Geology, Southwest Petroleum University, Chengdu 610500, China; The Sedimentary and Accumulation Department of Key Laboratory of Carbonate Reservoirs, PetroChina, Southwest Petroleum University, Chengdu 610500, ChinaSouthwest Petroleum University, Chengdu 610500, China; Key Laboratory of Natural Gas Geology, Southwest Petroleum University, Chengdu 610500, China; The Sedimentary and Accumulation Department of Key Laboratory of Carbonate Reservoirs, PetroChina, Southwest Petroleum University, Chengdu 610500, China; Corresponding authorGeological Exploration and Development Research Institute, Chuanqing Drilling Engineering Company Ltd, Chengdu 610041, ChinaSouthwest Petroleum University, Chengdu 610500, China; Key Laboratory of Natural Gas Geology, Southwest Petroleum University, Chengdu 610500, China; The Sedimentary and Accumulation Department of Key Laboratory of Carbonate Reservoirs, PetroChina, Southwest Petroleum University, Chengdu 610500, ChinaThe Sedimentary and Accumulation Department of Key Laboratory of Carbonate Reservoirs, PetroChina, Southwest Petroleum University, Chengdu 610500, ChinaExploration Division of PetroChina Southwest Oil and Gas Field Company, Chengdu 610041, ChinaExploration Division of PetroChina Southwest Oil and Gas Field Company, Chengdu 610041, ChinaSouthwest Petroleum University, Chengdu 610500, China; Key Laboratory of Natural Gas Geology, Southwest Petroleum University, Chengdu 610500, China; The Sedimentary and Accumulation Department of Key Laboratory of Carbonate Reservoirs, PetroChina, Southwest Petroleum University, Chengdu 610500, ChinaExploration Division of PetroChina Southwest Oil and Gas Field Company, Chengdu 610041, ChinaExploration Division of PetroChina Southwest Oil and Gas Field Company, Chengdu 610041, ChinaResearch Institute of Petroleum Exploration and Development, Southwest Oil and Gas Field Company, PetroChina, Chengdu 610041, ChinaBased on 3-D seismic data and drill-hole data in Moxi-Gaoshiti area, the impression seismic thickness from the top of Longwangmiao Formation, which is easier traced, to the bottom of Cambrian System was selected to characterize the karst paleogeomorphology of the fourth Member of Dengying Formation. The paleogeomorphology of the member can be further divided into three geomorphic units: karst platform, slope and superimposed slope, which had different paleohydrologic conditions, and thus different karstification intensity and reservoir quality. Among them, the superimposed slope with the strongest dissolution, has larger solution groove and cave systems, where the reservoirs with mainly honeycombed dissolved pores and cavities as storage space, are best in quality; the platform slope with weaker dissolution, has smaller solution groove and cave systems, where the reservoirs are poorer than those in the superimposed slope; the karst platform with the weakest dissolution, has piebald karst systems mainly, where the reservoirs with mainly pinhole to smaller dissolved pores and cavities as storage space, are poorer in quality on the whole, but there are some good quality reservoir bodies in local areas. The results show that, besides the highly explored scarp belt, the slope in the intra-platform with low exploration degree can also be favorable exploration area of the fourth member of Dengying Formation. Key words: paleogeomorphology, karst platform, slope, superimposed slope, Cambrian Longwangmiao Formation, Sinian Dengying Formation, Moxi-Gaoshiti area, Sichuan Basinhttp://www.sciencedirect.com/science/article/pii/S1876380417300083 |