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Evaluation Methods and Indexes for Ultra-deep Petroleum Reservoir Preservation with Case Studies
投稿时间:2022-01-11  修订日期:2022-06-11  点此下载全文
引用本文:YUAN Yusong,WANG Guojian,HU Wenxuan,CHEN Shuping,WANG Xiaolin,ZOU Yu,WANG Xinpeng,ZHANG Rongqiang,HAO Yunqing.2022.Evaluation Methods and Indexes for Ultra-deep Petroleum Reservoir Preservation with Case Studies[J].ACTA GEOLOGICA SINICA(English edition),96(4):1388~1401
摘要点击次数: 100
全文下载次数: 74
DOI:10.1111/1755-6724.14969
作者单位E-mail
YUAN Yusong 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China yuanys.syky@sinopec.com 
WANG Guojian 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China  
HU Wenxuan 2 School of Earth Science and Engineering, Nanjing University, Nanjing 210008, China  
CHEN Shuping 3 School of Geosciences, Chinese University of Petroleum (Beijing), Beijing 102200, China  
WANG Xiaolin 2 School of Earth Science and Engineering, Nanjing University, Nanjing 210008, China  
ZOU Yu 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China  
WANG Xinpeng 3 School of Geosciences, Chinese University of Petroleum (Beijing), Beijing 102200, China  
ZHANG Rongqiang 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China  
HAO Yunqing 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China  
 
Author NameAffiliationE-mail
YUAN Yusong 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China yuanys.syky@sinopec.com 
WANG Guojian 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China  
HU Wenxuan 2 School of Earth Science and Engineering, Nanjing University, Nanjing 210008, China  
CHEN Shuping 3 School of Geosciences, Chinese University of Petroleum (Beijing), Beijing 102200, China  
WANG Xiaolin 2 School of Earth Science and Engineering, Nanjing University, Nanjing 210008, China  
ZOU Yu 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China  
WANG Xinpeng 3 School of Geosciences, Chinese University of Petroleum (Beijing), Beijing 102200, China  
ZHANG Rongqiang 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China  
HAO Yunqing 1 Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100038, China  
Abstract:Following consideration of the characteristics of high temperature, high pressure and high in-situ stress in ultra-deep sedimentary basins, together with the existence of hydrocarbon phase state transformation, hydrocarbon-water-rock interaction and rock mechanical property transition at those depths, the evaluation index system for hydrocarbon preservation was established. The physical leakage evaluation indexes can be divided into three categories: the dynamic efficiency indexes of micro-sealing, caprock integrity and natural gas diffusion. The chemical loss evaluation indexes can be divided into two categories: the thermochemical sulfate reduction (TSR) index in marine gypsum-bearing carbonate strata and the thermochemical oxidation of hydrocarbons (TOH) index in clastic strata. The slippage angle and overconsolidation ratio (OCR) are the key evaluation indexes in the evaluation of the integrity of shale caprocks. TSR intensity can be quantitatively calculated by use of the ZnPVT state parameter method. The TOH strength can be used to estimate the degree of hydrocarbon chemical loss, based on the TOH-related authigenic calcite cement content or the degree of negative δ13C of authigenic calcite. For the evaluation of ultra-deep preservation in specific areas, key indexes can be selected according to the local geological conditions, instead of all indexes needing to be evaluated for every scenario.
keywords:ultra-deep, hydrocarbon preservation, physical leakage, chemical loss, thermochemical sulfate reduction, thermochemical oxidation of hydrocarbons
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版权所有:Acta Geologica Sinica (English Edition)
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