The depositional evolution, reservoir characteristics, and controlling factors of microbial carbonates of Dengying Formation in upper Neoprotozoic, Sichuan Basin, Southwest China

The Dengying Formation of Neoprotozoic age deposited in north Sichuan Basin, China, is dominated by dolomitic strata containing microbial carbonates. Thirteen cyanobacteria forms, one oncolite and two stromatolitic structures have been identified. Different microfacies may be related to different microbe forms or assemblages as well as depositional environments. Potential hydrocarbon reservoirs in microbial carbonates are of low porosity and permeability. Microbialites develop in the members Z2dn1, Z2dn2, and Z2dn4. The member Z2dn1 and Z2dn2 lying in the lower part, dominated by thrombolitic and spongiostromata dolostone, with three reservoir intervals of overall 190 m thick. Laminite and stromatolitic dolostone are the most important in member Z2dn4, with three reservoir intervals of 119 m thick. Microbial carbonate reservoirs in members Z2dn1 and Z2dn2 were effected by two stages of fresh water dissolution, three stages of burial dissolution, and one stage of hydrocarbon invasion. But one stage of fresh water dissolution, two stages of burial dissolution, and three stages of hydrocarbon invasion modified the reservoirs of member Z2dn4. The dominant factors for microbial reservoirs were microbial textures and development of Mianyang-Changning intracratonic sag.

[1]  Qinglin Pan,et al.  A comparative study of salient petroleum features of the Proterozoic–Lower Paleozoic succession in major petroliferous basins in the world , 2017 .

[2]  C. Zou,et al.  Characteristics and accumulation mode of large-scale Sinian-Cambrian gas reservoirs in the Gaoshiti-Moxi region, Sichuan Basin , 2016 .

[3]  Zhengyu Xu,et al.  Geology and shale gas resource potentials in the Sichuan Basin, China , 2016 .

[4]  Liu Shu-ge.  Control of intracratonic sags on the hydrocarbon accumulations in the marine strata across the Sichuan Basin,China , 2016 .

[5]  F. Liu,et al.  New benzimidazole acridine derivative induces human colon cancer cell apoptosis in vitro via the ROS-JNK signaling pathway , 2015, Acta Pharmacologica Sinica.

[6]  T. Pritchard,et al.  Microbial Carbonates in Space and Time: Implications for Global Exploration and Production , 2015 .

[7]  Hong Liu,et al.  Restoration of paleokarst geomorphology of Sinian Dengying Formation in Sichuan Basin and its significance, SW China , 2015 .

[8]  P. Zeng,et al.  Enrichment of Shale Gas in Different Strata in Sichuan Basin and its Periphery—The Examples of the Cambrian Qiongzhusi Formation and the Silurian Longmaxi Formation , 2015 .

[9]  M. Pope,et al.  Importance of depositional texture in pore characterization of subsalt microbialite carbonates, offshore Brazil , 2015 .

[10]  H. Xu.  Family reunion of nuclear hormone receptors: structures, diseases, and drug discovery , 2015, Acta Pharmacologica Sinica.

[11]  M. Wallace,et al.  The Cryogenian Balcanoona reef complexes of the Northern Flinders Ranges: Implications for Neoproterozoic ocean chemistry , 2015 .

[12]  Christopher T. Reinhard,et al.  Low Mid-Proterozoic atmospheric oxygen levels and the delayed rise of animals , 2014, Science.

[13]  Chuanming Zhou,et al.  Reservoirs of Lower Cambrian microbial carbonates, Tarim Basin, NW China , 2014 .

[14]  C. Zou,et al.  Formation, distribution, resource potential, and discovery of Sinian–Cambrian giant gas field, Sichuan Basin, SW China , 2014 .

[15]  Weihua Lu,et al.  Paleo-geomorphology formed during Tongwan tectonization in Sichuan Basin and its significance for hydrocarbon accumulation , 2014 .

[16]  Peng Han-li.  Characteristics of microbial carbonate rocks in Upper Sinian Dengying Formation of Micang Mountains,North Sichuan,China , 2014 .

[17]  Liu Shu-ge.  Controlling factors of formation and distribution of Lower Cambrian Longwangmiao Formation high-quality reservoirs in Sichuan Basin,China , 2014 .

[18]  L. Bian,et al.  Development and reservoir significance of mud mounds in Sinian Dengying Formation, Sichuan Basin , 2013 .

[19]  E. A. Mancini,et al.  Introduction: AAPG Hedberg Research Conference on Microbial Carbonate Reservoir Characterization—Conference summary and selected papers , 2013 .

[20]  D. Fowle,et al.  Ordered low-temperature dolomite mediated by carboxyl-group density of microbial cell walls , 2013 .

[21]  A. Bekker,et al.  Large-scale fluctuations in Precambrian atmospheric and oceanic oxygen levels from the record of U in shales , 2013 .

[22]  W. Xie,et al.  Formation conditions and exploration prospects of Sinian large gas fields, Sichuan Basin , 2013 .

[23]  Zhong Yon.  Features of extensional structures in pre-Sinian to Cambrian strata,Sichuan Basin,China , 2013 .

[24]  Liu Shu-ge.  Xingkai taphrogenesis and petroleum exploration from Upper Sinian to Cambrian Strata in Sichuan Basin,China , 2013 .

[25]  Song Jin-mi.  Control of Xingkai taphrogenesis on Dengying Formation high quality reservoirs in Upper Sinian of Sichuan Basin,China , 2013 .

[26]  Luo Ping,et al.  Review and Prospectives of Microbial Carbonate Reservoirs , 2013 .

[27]  Junxing Cao,et al.  Spatial variation in Meso-Cenozoic exhumation history of the Longmen Shan thrust belt (eastern Tibetan Plateau) and the adjacent western Sichuan basin: Constraints from fission track thermochronology , 2012 .

[28]  B. Deng,et al.  Architecture of basin-mountain systems and their influences on gas distribution: A case study from the Sichuan basin, South China , 2012 .

[29]  J. Trafford,et al.  First discovery of dolomite and magnesite in living coralline algae and its geobiological implications , 2011 .

[30]  R. Drysdale,et al.  Neoproterozoic aragonite-dolomite seas? Widespread marine dolomite precipitation in Cryogenian reef complexes , 2011 .

[31]  Y. Qian,et al.  Sedimentary evolution and reservoir distribution of northern Upper Yangtze plate in Sinian-Early Paleozoic , 2011 .

[32]  F. Howari,et al.  MICROBIAL DOLOMITES FROM CARBONATE‐EVAPORITE SEDIMENTS OF THE COASTAL SABKHA OF ABU DHABI AND THEIR EXPLORATION IMPLICATIONS , 2010 .

[33]  A. Racey,et al.  Pre-salt microbial carbonate reservoirs of the Santos Basin, offshore Brazil , 2009 .

[34]  J. Craig,et al.  Global Neoproterozoic petroleum systems: the emerging potential in North Africa , 2009 .

[35]  F. Lottaroli,et al.  Neoproterozoic-Early Cambrian (Infracambrian) hydrocarbon prospectivity of North Africa: a synthesis , 2009 .

[36]  R. Zenobi,et al.  Aerobic microbial dolomite at the nanometer scale : Implications for the geologic record , 2008 .

[37]  E. A. Mancini,et al.  Upper Jurassic updip stratigraphic trap and associated Smackover microbial and nearshore carbonate facies, eastern Gulf coastal plain , 2008 .

[38]  Wei Yang,et al.  Petroleum systems of the oldest gas field in China: Neoproterozoic gas pools in the Weiyuan gas field, Sichuan Basin , 2008 .

[39]  K. Karlstrom,et al.  Assembly, configuration, and break-up history of Rodinia: A synthesis , 2008 .

[40]  Liu Shu-gen.  Studying on the Differences of Sinian Natural Gas Pools between Weiyuan Gas Field and Ziyang Gas-Brone Area,Sichuan Basin , 2008 .

[41]  Mingxiang Mei,et al.  Revised Classification of Microbial Carbonates: Complementing the Classification of Limestones , 2007 .

[42]  A. Mastandrea,et al.  Microbial primary dolomite from a Norian carbonate platform: northern Calabria, southern Italy , 2006 .

[43]  E. A. Mancini,et al.  Upper Jurassic thrombolite reservoir play, northeastern Gulf of Mexico , 2004 .

[44]  Erik Flügel,et al.  Microfacies of Carbonate Rocks: Analysis, Interpretation and Application , 2004 .

[45]  G. Narbonne,et al.  Paleoenvironments and growth of early Neoproterozoic calcimicrobial reefs: platformal Little Dal Group, northwestern Canada , 2004 .

[46]  Erik Flügel,et al.  Microfacies of Carbonate Rocks , 2004 .

[47]  J. Mckenzie,et al.  Sulphate‐reducing bacteria induce low‐temperature Ca‐dolomite and high Mg‐calcite formation , 2003 .

[48]  Fang Shao-xian.  Non-stromatoltite Ecologic System Cyanobacteria Dolostone in Dengying Formation of Upper-Sinian , 2003 .

[49]  P. John,et al.  Facies and reservoir architecture of isolated microbial carbonate platforms, terminal Proterozoic-early Cambrian Ara Group, South Oman salt basin , 2002 .

[50]  X. Fang.  Paleokarst and Its Characteristics of Dengying Formation in Ziyang Area , 2001 .

[51]  Luo Xiao-quan.  An approach to the palaeokarsts and pool accumulation in the Dengying Formation (Sinian) of the Weiyuan gas field, Sichuan , 2001 .

[52]  J. Mckenzie,et al.  Bacterially induced dolomite precipitation in anoxic culture experiments , 2000 .

[53]  J. Mckenzie,et al.  Sulfate Reducers--Dominant Players in a Low-Oxygen World? , 2000, Science.

[54]  E. A. Mancini,et al.  Appleton Field Case Study (Eastern Gulf Coastal Plain): Field Development Model for Upper Jurassic Microbial Reef Reservoirs Associated with Paleotopographic Basement Structures , 2000 .

[55]  A. Knoll,et al.  Calcified metazoans in thrombolite-stromatolite reefs of the terminal Proterozoic Nama Group, Namibia , 2000, Paleobiology.

[56]  N. Lemon.  A Neoproterozoic fringing stromatolite reef complex, Flinders Ranges, South Australia , 2000 .

[57]  Robert Riding,et al.  Microbial carbonates: the geological record of calcified bacterial–algal mats and biofilms , 2000 .

[58]  S. Tull.  The diversity of hydrocarbon habitat in Russia , 1997, Petroleum Geoscience.

[59]  J. Mckenzie,et al.  Microbial mediation of modern dolomite precipitation and diagenesis under anoxic conditions , 1997 .

[60]  A. J. Kaufman,et al.  Evaluation of δ13C chemostratigraphy for intrabasinal correlation: Vendian strata of northeast Siberia , 1996 .

[61]  S. Bernasconi,et al.  Microbial mediation as a possible mechanism for natural dolomite formation at low temperatures , 1995, Nature.

[62]  R. Burne,et al.  Microbialites; organosedimentary deposits of benthic microbial communities , 1987 .

[63]  P. Hoffman,et al.  Algal origin of dolomite laminations in stromatolitic limestone , 1973 .

[64]  J. Dickson,et al.  A Modified Staining Technique for Carbonates in Thin Section , 1965, Nature.