石油实验地质

2011, 33(3)

Abstract(350) PDF-CN(311)

Abstract:

Types and characteristics of shale gas reservoir：A case study of Lower Paleozoic in and around Sichuan Basin

Nie Haikuan, Zhang Jinchuan

2011, 33(3): 219-225. doi: 10.11781/sysydz201103219

Abstract(3876) PDF-CN(1366)

Abstract:
Through field observation,slice,SEM and X-ray diffraction analyses of 41 black shale samples from the Lower Cambrian and the Upper Ordovician-Lower Silurian in and around the Sichuan Basin,the characteristics of reservoir,fracture and pore of shale were studied.There are mainly 2 types of shale gas ...

Petroleum geology and exploration in Colombia

Liu Yaming, Zhang Chunlei

2011, 33(3): 226-232. doi: 10.11781/sysydz201103226

Abstract(3461) PDF-CN(1390)

Abstract:
With rich oil and gas resources,Colombia is the 4th major petroleum producer in South America and attracts much attention.Guided by petroleum geology theory,the characteristics of petroleum geology and the principles of petroleum distribution have been studied,and the exploration potential has been ...

Paleostructural evolution of Lower-Middle Ordovician top and its relationship with hydrocarbon in Tahe Oil Field

Zhang Xiaobing, Lü Haitao, Zhao Xikui, Li Kun, He Jianjun

2011, 33(3): 233-238. doi: 10.11781/sysydz201103233

Abstract(4174) PDF-CN(1017)

Abstract:
Ordovician is the main hydrocarbon producing reservoir in the Tahe Oil Field.Studies of tectonic evolution and paleostructures indicated that the Middle—Lower Ordovician top was a nose-like convex to the northeast during the 2nd phase of Caledonian Movement.The highest point located around the prese...

Formation of volcanic reservoir and its controlling on accumulation in Changling Fault Depression

Xu Hongjie, Lu Jianlin, Yu Wenxiu, Wang Baohua

2011, 33(3): 239-243. doi: 10.11781/sysydz201103239

Abstract(2835) PDF-CN(933)

Abstract:
In the Changling Fault Depression,volcanic rock formation is very thick.There are various types and facies of rock.Reservoirs are well-developed.The storage capacity of volcanic reservoir is not restricted by burial depth.It is favorable for reservoir in deep fault depression,characterized by high p...

Sequence stratigraphic division and evolution of Carboniferous in Tarim Basin

Xiao Zhaohui, Wang Zhaoming, Wu Jincai, Jiang Renqi

2011, 33(3): 244-248. doi: 10.11781/sysydz201103244

Abstract(3282) PDF-CN(1022)

Abstract:
Sequence stratigraphic studies have been carried out in the Carboniferous Donghe sandstones in the Tarim Basin based on the theories and methodologies of sequence stratigraphy.An integrated technique for sequence stratigraphic interpretation has been discussed by means of outcrop,drilling and seismi...

Sedimentary microfacies of Qingshankou Formaiton, West-Yao block, Yaoyingtai Oil Field, Changling Sag, Songliao Basin

Jiao Lili, Yu Hao, Ren Tao

2011, 33(3): 249-254. doi: 10.11781/sysydz201103249

Abstract(3776) PDF-CN(894)

Abstract:
Based on the studies of core samples and well-logging data from the West-Yao block of the Yaoyingtai Oil Field in the Changling Sag of the Songliao Basin,combined with seismic fine interpretation,guided by sedimentary theory,the types of sedimentary facies of the Qingshankou Formaiton were classifie...

Shallow deepwater channels in Baiyun deepwater region of northern continental slope, South China Sea

Liu Jun, Pang Xiong, Yan Chengzhi, Liu Baojun, Li Yuanping, Hu Lian, Zheng Jinyun

2011, 33(3): 255-259. doi: 10.11781/sysydz201103255

Abstract(2116) PDF-CN(969)

Abstract:
Based on shallow 3D seismic data with high resolution,shallow deepwater channels in the Baiyun deepwater region are studied so as to guide medium and deep explorations with lower seismic resolution.Large amounts of deepwater channels generate in the slope and the slope base of Baiyun Sag.The channel...

Depositional system of lower Nantun Formation in South Tamuchage-South Beier Sag

Ji Youliang, Meng Qi'an, Shan Jingfu, Zhang Ge

2011, 33(3): 260-265. doi: 10.11781/sysydz201103260

Abstract(2263) PDF-CN(961)

Abstract:
Based on the data of core,well drilling,seismic and laboratory chemical analyses,the depositional system of the lower Nantun Formation in the South Tamuchage-South Beier Sag is discussed.Fan-delta,near-shore subwater fan,lake floor fan and lacustrine depositional system characterized by steep slope,...

Dolomitization of Ordovician Majiagou Formation in Sulige region, Ordos Basin

Fu Jinhua, Wang Baoqing, Sun Liuyi, Bao Hongping, Xu Bo

2011, 33(3): 266-273. doi: 10.11781/sysydz201103266

Abstract(3152) PDF-CN(1033)

Abstract:
The Ordovician Majiagou Formation in Sulige region of the Ordos Basin was deposited in hypersaline restricted epicontinental environment.It is mainly composed of carbonate rocks with thin evaporate interbeds.The dolomites are classified into 3 kinds:micrite,fine-medium crystal dolomite,and dolomite ...

Densification of Upper Triassic Xujiahe tight sandstones, Western Sichuan, China

Li Rong, Zhang Di, Zhu Lixia

2011, 33(3): 274-281. doi: 10.11781/sysydz201103274

Abstract(3620) PDF-CN(1027)

Abstract:
Densification process of the Upper Triassic Xujiahe sandstones were described based on petrologic,diagenesis and basin modeling analyses.The diagenetic events that affect reservoir quality mainly include mechanical and chemical compactions,precipitation of carbonate cements,and cementation by quartz...

Features of thrust nappe structure in northern South Yellow Sea

Yao Rong, Luo Kaiping, Yang Changqing

2011, 33(3): 282-284. doi: 10.11781/sysydz201103282

Abstract(2078) PDF-CN(997)

Abstract:
In marine formations of the northern South Yellow Sea,thrust nappe took place from NW to SE on Cambrian bottom,Silurian top(or Caledonian tectonic surface) and Upper Permian Longtan Formation coal strata.The thrust nappe structure spread from the Qianliyan Uplift to the southern margin of Laoshan Up...

Generation principle of ancient karst in marine carbonate rock hiatus, west of Xuefeng Mountain

Zhang Qingyu, Liang Bin, Chen Hongfeng, Cao Jianwen

2011, 33(3): 285-288. doi: 10.11781/sysydz201103285

Abstract(3164) PDF-CN(918)

Abstract:
During the Caledonian Movement,the Cambrian Niutitang-Sinian Dengying and Upper Cambrian-Ordovician parallel unconformities were found in the west of Xuefeng Mountain.Due to multi-stages of tectonic movements,several regional unconformities were formed in the study area.During different stages,the d...

Metamorphic core complex and neighboring basins in Hongzhen, Anhui Province

Fan Xiaolin, Lu Yongde

2011, 33(3): 289-291. doi: 10.11781/sysydz201103289

Abstract(2535) PDF-CN(873)

Abstract:
According to the geophysical analyses of gravity and aeromagnetic anomalies and the characteristic studies of metamorphic core complex in Hongzhen,tectonic genesis models of the Huaining and Wangjiang Basins have been discussed.Basin formation is related to the deep thermal flow in lithosphere and t...

Study of unresolved complex mixtures in crude oil

Hu Shouzhi, Li Shuifu, Zhang Dongmei, Ma Jun

2011, 33(3): 292-296. doi: 10.11781/sysydz201103292

Abstract(3883) PDF-CN(1063)

Abstract:
Unresolved complex mixtures(UCM) usually refer to hydrocarbons existing in crude oils(especially biodegraded oils).They are difficult to distinguish with normal GC,and include over 250 000 types of compounds.The effective discrimination of UCM may provide new geochemical information for crude oil ge...

Petroleum accumulation characteristics and favorable exploration directions in Wenchang B Sag and its surrounding areas, Pearl River Mouth Basin

Zhang Yingzhao, Chen Zhihong, Li Xushen, Xu Xinde, Li Qi

2011, 33(3): 297-302. doi: 10.11781/sysydz201103297

Abstract(3351) PDF-CN(1083)

Abstract:
Based on source rock analysis,oil—source correlation and accumulation comprehensive analysis,oil source and accumulation process in the Wenchang B Sag and its surrounding areas were studied.Main source rock and hydrocarbon accumulation features in different regions were illustrated.Main controlling ...

Division of exploration units and its significance in mature exploration region：a case study in Dongying Sag

Xu Xianghua

2011, 33(3): 303-306. doi: 10.11781/sysydz201103303

Abstract(3244) PDF-CN(972)

Abstract:
It is very difficult to explore with structural unit in mature exploration regions.According to exploration and production practices,the concept and the division method of exploration unit in mature region were proposed,and were used to guide geologic study,well arrangement and input-output ana-lysi...

Identification of reef in Miocene, south of Qiongdongnan Basin

Zhang Yonggui, Song Zaichao, Zhou Xiaojin, Wu Li, Zhang Xike, Ran Jing

2011, 33(3): 307-309. doi: 10.11781/sysydz201103307

Abstract(3746) PDF-CN(990)

Abstract:
The southern part of the Qiongdongnan Basin was suitable for reef generation when the Meishan Formation deposited during Miocene.Seismic data collected in this region during the past few years have indicated that the Meishan Formation is characterized by typical mound reflection,mainly on ancient up...

Rare gas component measurement with self-designed pretreatment unit and Quadrupole Mass Spectrometer

Tao Cheng, Sun Mingliang, Wang Xiaofeng, Zhou Yu

2011, 33(3): 310-313. doi: 10.11781/sysydz201103310

Abstract(2385) PDF-CN(974)

Abstract:
According to the rare gas component in air,the content of rare gas in sample gas is measured with self-designed pretreatment unit and Quadrupole Mass Spectrometer(QMS).The method is highly sensitive and is accurate in He and Ar analyses.It is applied in rare gas component analyses of natural gas and...

Primary study on relatively preconcentration of trace hydrogen in natural gas

Meng Qingqiang, Tao Cheng, Zhu Dongya, Jin Zhijun, Wang Qiang, Zheng Lunju

2011, 33(3): 314-316. doi: 10.11781/sysydz201103314

Abstract(2429) PDF-CN(902)

Abstract:
A new quantitative preconcentration method for trace hydrogen in natural gas was proposed in this paper so as to deal with the problem of isotopic composition measurement.Based on the differences of chemical and physical properties between different components in natural gas,using cryogenetic trap a...

Quantitative discrimination of hydrocarbon micro-seepage pattern

Yang Jun

2011, 33(3): 317-322. doi: 10.11781/sysydz201103317

Abstract(1651) PDF-CN(874)

Abstract:
Studies of hydrocarbon micro-seepage have indicated that,when reservoir has been formed,oil and gas mainly seep as micro-bubble or with water.Based on isopachous stratigraphic model,a quantitative discrimination coefficient of micro-seepage pattern has been proposed and calculated according to gener...

2011 Vol. 33, No. 3

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