1 Introduction Reservoir architecture analysis of distributary channel of Daqing oilfield has drawn consistent interest among development geologists and petroleum engineers over the last decade(Lv et al.,1999;Zhou et ...1 Introduction Reservoir architecture analysis of distributary channel of Daqing oilfield has drawn consistent interest among development geologists and petroleum engineers over the last decade(Lv et al.,1999;Zhou et al.,2008;Zhang et展开更多
Carbonate reservoir patterns play an important role in the production performance of oil and gas wells,and it is usually classified through static data analysis which cannot reflect the actual well performance.This pa...Carbonate reservoir patterns play an important role in the production performance of oil and gas wells,and it is usually classified through static data analysis which cannot reflect the actual well performance.This paper takes the Tazhong No.1 gas field in the Tarim Basin,China as an example to investigate the classification of carbonate reservoirs.The classification method mainly combines well test analysis with production analysis—especially the Blasingame type curve method.Based on the characteristics of type curves for well test analysis and the Blasingame method,the relationship between the type curves and reservoir pattern was established.More than 20 wells were analyzed and the reservoirs were classified into 3 major patterns with 7 sub-classes.Furthermore,the classification results were validated by dynamic performance analysis of wells in the Tazhong No.1 gas field.On the basis of the classification results,well stimulation（i.e.water flooding in a single well） was carried out in three volatile-oil wells,and the oil recovery increased by up to 20%.展开更多
The Lenghu area is one of the most crucial tectonic belts for oil and gas exploration in the Qaidam Basin.However,reservoir distribution and the factors controlling petroleum accumulation in this area have not been st...The Lenghu area is one of the most crucial tectonic belts for oil and gas exploration in the Qaidam Basin.However,reservoir distribution and the factors controlling petroleum accumulation in this area have not been studied in detail.In this paper,the structural characteristics and controlling factors of oil and gas accumulation in the Lenghu belt are investigated based on seismic profiles combined with drilling logs and microphotographs data.Results indicate that the Lenghu belt has thick source rocks and has preserved hydrocarbon generation conditions.Moreover,structural characteristics and lithology are the key factors controlling the reservoir distribution.The production of oil and gas layers are mainly distributed in high structural points and weak stress zones.The fracture zones and the weak stress zones are the potential places for the distribution of oil and gas reservoirs.展开更多
基金funding support of this project from National Science and Technology Major Project of the Ministry of Science and Technology of China (Grant No. 2011ZX05010-002-005)
文摘1 Introduction Reservoir architecture analysis of distributary channel of Daqing oilfield has drawn consistent interest among development geologists and petroleum engineers over the last decade(Lv et al.,1999;Zhou et al.,2008;Zhang et
基金financial support from"Major Projects about Carbonate Reservoirs of Petrochina (2008E-0610-08)""Young Innovation Fund Project of Research Institute of Petroleum Exploration and Development (2009-A-17-13)"
文摘Carbonate reservoir patterns play an important role in the production performance of oil and gas wells,and it is usually classified through static data analysis which cannot reflect the actual well performance.This paper takes the Tazhong No.1 gas field in the Tarim Basin,China as an example to investigate the classification of carbonate reservoirs.The classification method mainly combines well test analysis with production analysis—especially the Blasingame type curve method.Based on the characteristics of type curves for well test analysis and the Blasingame method,the relationship between the type curves and reservoir pattern was established.More than 20 wells were analyzed and the reservoirs were classified into 3 major patterns with 7 sub-classes.Furthermore,the classification results were validated by dynamic performance analysis of wells in the Tazhong No.1 gas field.On the basis of the classification results,well stimulation（i.e.water flooding in a single well） was carried out in three volatile-oil wells,and the oil recovery increased by up to 20%.
基金supported by the State Key Laboratory of Petroleum Resource and Prospecting,China University of Petroleum,Beijing(No.PRP/Open-1903)the Talents of Guizhou,China(Qian Ke He Platform and Talent(No.2017)5727-04)+1 种基金the Zunyi Normal University(No.BS[2018]04)the Qian Ke He Zhicheng(2018)2778.
文摘The Lenghu area is one of the most crucial tectonic belts for oil and gas exploration in the Qaidam Basin.However,reservoir distribution and the factors controlling petroleum accumulation in this area have not been studied in detail.In this paper,the structural characteristics and controlling factors of oil and gas accumulation in the Lenghu belt are investigated based on seismic profiles combined with drilling logs and microphotographs data.Results indicate that the Lenghu belt has thick source rocks and has preserved hydrocarbon generation conditions.Moreover,structural characteristics and lithology are the key factors controlling the reservoir distribution.The production of oil and gas layers are mainly distributed in high structural points and weak stress zones.The fracture zones and the weak stress zones are the potential places for the distribution of oil and gas reservoirs.
