石油实验地质

2017, 39(2): .

Abstract(342) PDF-CN(337)

Abstract:

Effects of preservation conditions on enrichment and high yield of shale gas in Sichuan Basin and its periphery

Wei Xiangfeng, Li Yuping, Wei Zhihong, Liu Ruobing, Yu Guangchun, Wang Qingbo

2017, 39(2): 147-153. doi: 10.11781/sysydz201702147

Abstract(1622) PDF-CN(689) Cited By (152)

Abstract:
The main controlling factors of shale gas preservation conditions and evaluation of the Niutitang and Wufeng-Longmaxi formations in the Sichuan Basin and its periphery, were considered in view of typical shale gas wells in different regions with different gas contents and production. The preservatio...

Sedimentary environment of the Lower Cambrian organic-rich shale and its influence on organic content in the Upper Yangtze

Zhang Yuying, He Zhiliang, Gao Bo, Liu Zhongbao

2017, 39(2): 154-161. doi: 10.11781/sysydz201702154

Abstract(1267) PDF-CN(431) Cited By (25)

Abstract:
Rock samples from 3 typical Lower Cambrian outcrops in the Upper Yangtze have been collected to test the content of total organic carbon (TOC) as well as major elements and trace elements. The characteristics of primary productivity and redox in the Early Cambrian, and their effect on organic enrich...

Peculiar accumulation conditions for shale gas in the Lower Cambrian in Qianzhong uplift and its periphery

Zhang Peixian

2017, 39(2): 162-168. doi: 10.11781/sysydz201702162

Abstract(963) PDF-CN(353) Cited By (27)

Abstract:
The Lower Cambrian Niutitang Formation shale is characterized by large thickness, high organic carbon content, high thermal evolution degree and high brittle mineral content in the Qianzhong uplift and its periphery. It has the basic geological conditions for shale gas accumulation. However, after m...

Reservoir densification and tight-oil charging in Yanchang Formation, Ordos Basin

Guo Jigang, Guo Kai, Gong Pengqi, Xu Jing, Guo Jing

2017, 39(2): 169-179. doi: 10.11781/sysydz201702169

Abstract(1367) PDF-CN(353) Cited By (37)

Abstract:
The Yanchang Formation in Longdong area, Ordos Basin, is characterized by low porosity and permeability and is considered as a tight-oil reservoir. However, reservoir densification and its influence on oil charging are not well-understood. Based on the analysis of reservoir diagenesis, densification...

Microscopic characteristics of shale oil reservoirs in Shahejie Formation in Zhanhua Sag, Bohai Bay Basin

Liu Yi, Lu Zhengyuan, Qi Minghui, Tian Tonghui, Feng Mingshi

2017, 39(2): 180-185. doi: 10.11781/sysydz201702180

Abstract(1116) PDF-CN(296) Cited By (35)

Abstract:
The microscopic pore characteristics of shale oil reservoirs are important basic data for exploration and development. Eighteen core samples were collected from the third member of Shahejie Formation (Es₃) in well Luo 69 in the Zhanhua Sag, Bohai Bay Basin, and were analyzed using argon-ion polishin...

Coupling of abnormal overpressure and hydrocarbon charging: A case from the Huagang and Pinghu formations of Xihu Sag, East China Sea Shelf Basin

Chen Zhiyuan, Xu Zhixing, Chen Fei, Xu Guosheng, Zhang Wu

2017, 39(2): 186-194. doi: 10.11781/sysydz201702186

Abstract(1059) PDF-CN(259) Cited By (11)

Abstract:
Abnormal overpressure in the Huagang and Pinghu formations of the Xihu Sag, East China Sea Shelf Basin was studied based on sonic logging data, organic geochemistry and fluid inclusion testing. The abnormal pressure mainly originated from the lower Huagang Formation, and featured a "step type" distr...

Source-reservoir-seal assemblage of marine Mesozoic-Paleozoic in South Yellow Sea Basin by land-ocean comparison

Yuan Yong, Chen Jianwen, Liang Jie, Zhang Penghui

2017, 39(2): 195-202. doi: 10.11781/sysydz201702195

Abstract(1114) PDF-CN(196) Cited By (25)

Abstract:
The South Yellow Sea Basin is the main body of the Lower Yangtze area, where marine Mesozoic-Paleozoic strata are widely distributed. The characteristics of source-reservoir-seal assemblage of the marine Mesozoic-Paleozoic strata in the South Yellow Sea Basin were analyzed by comparing the character...

Characteristics of lacustrine carbonate rocks within the upper section of the fourth member of Shahejie Formation in Zhanhua-Chezhen area, Jiyang Depression, Bohai Bay Basin

Bi Caiqin, Zhu Qiang, Hu Zhifang, Lin Hongmei, Shi Quanqing, Hao Yunqing, Xu Yinbo

2017, 39(2): 203-212. doi: 10.11781/sysydz201702203

Abstract(1097) PDF-CN(265) Cited By (13)

Abstract:
Lacustrine carbonate rocks of the upper section of the fourth member of Shahejie Formation (E s₄) are extensive around the Yihezhuang high in the Zhanhua-Chezhen area in the Jiyang Depression, Bohai Bay Basin. With a great number of oil reservoir discoveries and plenty of drilling data, it has becom...

Fracture properties and formation mechanism of Laixi fault in Laiyang Sag, Jiaolai Basin

Zhang Bo, Wu Zhiping, Liu Hua, Li Zhong

2017, 39(2): 213-221. doi: 10.11781/sysydz201702213

Abstract(1025) PDF-CN(246) Cited By (6)

Abstract:
The Laixi fault was identified and described, and its geometric features and formation mechanism were also analyzed based on the gravity data and new 2D seismic data of the Laiyang Sag in order to clarify the fracture properties and formation mechanism of the Laixi fault. Several structural styles w...

Tectonic characteristics and hydrocarbon accumulation in the eastern section of Maigaiti slope, Tarim Basin

Zhang Yuhang, Tang Liangjie

2017, 39(2): 222-229. doi: 10.11781/sysydz201702222

Abstract(1043) PDF-CN(390) Cited By (11)

Abstract:
Based on fault-related fold theory and the latest 3D seismic data, the tectonic deformation characteristics in the Yubei area on the eastern Maigaiti slope in the Tarim Basin were analyzed through seismic interpretation, and the relationship between tectonic characteristics and hydrocarbon accumulat...

Biomarker characteristics of Lower Paleozoic source rocks in Chezhen Sag, Bohai Bay Basin

Lin Hongmei

2017, 39(2): 230-237. doi: 10.11781/sysydz201702230

Abstract(1158) PDF-CN(257) Cited By (17)

Abstract:
The biomarkers of the Lower Paleozoic carbonate rocks in the Chenzhen Sag of Bohai Bay Basin were stu-died using GS-MS. Their sedimentary environment, organic matter origin and thermal evolution degree were discussed, and compared them with the Eogene source rocks. The normal alkanes showed a single...

Jurassic reservoir development in Fukang Deep Sag, Central Junggar Basin

Shi Haoguo

2017, 39(2): 238-246. doi: 10.11781/sysydz201702238

Abstract(1540) PDF-CN(195) Cited By (23)

Abstract:
Jurassic reservoirs were deeply buried in the Fukang Deep Sag, where faults are difficult to identify, and traps are subtle, leading to significant differences in reservoir-forming controls where they are dominated by large structural traps in the uplift zone. The process of oil and gas migration an...

Composition and geologic significance of carbon and oxygen isotopes in hydrocarbon source rocks, Dongying Sag, Bohai Bay Basin

Liu Qing

2017, 39(2): 247-252. doi: 10.11781/sysydz201702247

Abstract(1185) PDF-CN(265) Cited By (15)

Abstract:
Lacustrine hydrocarbon source rocks of the Shahejie Formation in the Dongying Sag were sampled, and the carbon and oxygen isotope composition of carbonates were analyzed. Combined with previous references and precise stratigraphic division, the isotope composition in different stratigraphic units an...

Effects of inorganic minerals in source rocks on hydrocarbon generation from organic matter

Cai Yuwen, Zhang Shuichang, He Kun, Mi Jingkui, Zhang Wenlong, Wang Xiaomei, Wang Huajian, Wu Chaodong

2017, 39(2): 253-260. doi: 10.11781/sysydz201702253

Abstract(1209) PDF-CN(311) Cited By (11)

Abstract:
The effects of inorganic minerals in source rocks on gas generation and isotopic fractionation of organic matter were studied by hydrous pyrolysis using two sets of whole rocks and their kerogens, which were separated from the low maturity shale of the Yanchang Formation in the Ordos Basin and the X...

Simulation of microseepage of light hydrocarbon of different occurrence states in strata above reservoirs

Wang Guojian, Tang Junhong, Tang Yuping, Li Xingqiang, Li Jipeng, Yang Jun, Huang Xin

2017, 39(2): 261-266. doi: 10.11781/sysydz201702261

Abstract(974) PDF-CN(151) Cited By (5)

Abstract:
Several geochemical methods to analyze light hydrocarbons in subsurface rock and soil microseeping from hydrocarbon reservoirs were set up. The hydrocarbons included adsorbed and thermally-released hydrocarbon, head space gas, and free gas, etc., but the static data analyzed through these methods co...

Comprehensive analysis methods in a mature exploration area: Jiyang Depression case study

Guo Yuanling, Du Zhenjing, Fang Xuqing, Hou Fei, Dong Weiwu

2017, 39(2): 267-271. doi: 10.11781/sysydz201702267

Abstract(1330) PDF-CN(297) Cited By (9)

Abstract:
Contents and methods of comprehensive analysis of the Jiyang Depression were introduced. We divided exploration units, established exploration models, made clear exploration purpose and direction, assessed exploration risks, estimated economic value and investment scale, and finally proposed some ad...

Depositional facies mapping based on seismic data: A case study of the 8th member of Shihezi Formation, Gaojiahe 3D block, Yanchang exploration zone, Ordos Basin

Lai Shenghua, Liu Weiming, Zhao Yonggang, Ding Xi

2017, 39(2): 272-277. doi: 10.11781/sysydz201702272

Abstract(1000) PDF-CN(245) Cited By (7)

Abstract:
Seismic data were applied in the study of sedimentary facies distributions in the 8th member of Shihezi Formation in Gaojiahe 3D block in Yanchang exploration area, the Ordos Basin. Rock properties are the basis for the application of seismic data in sedimentological interpretation. The seismic refl...

Quantitative characterization of extractable organic matter in lacustrine shale with different occurrences

Qian Menhui, Jiang Qigui, Li Maowen, Li Zhiming, Liu Peng, Ma Yuanyan, Cao Tingting

2017, 39(2): 278-286. doi: 10.11781/sysydz201702278

Abstract(1572) PDF-CN(343) Cited By (90)

Abstract:
The extractable organic matter (OM) in lacustrine shale can be classified into free, adsorbed or miscible states. The quantitative study of OM of these different occurrences has significance for oil/gas resource evaluation, shale oil mobility, hydrocarbon generation mechanism and oil/gas occurrence....

Reservoir characterization and its application to development

Zhao Xi, Liu Bo, Guo Rongtao, Zhang Shanming, Li Yang, Tian Zepu

2017, 39(2): 287-294. doi: 10.11781/sysydz201702287

Abstract(1597) PDF-CN(622) Cited By (46)

Abstract:
Recently, the exploration and development of unconventional oil and gas resources have obtained a great breakthrough, which expanded research and promoted the technique innovation of reservoir study. Consequently, from conventional-scale to nano-scale pores, low to extra-low porosity and permeabilit...

Peng Shoutao

2017, 39(2): 295-295.

Abstract(387) PDF-CN(203)

Abstract:

2017 Vol. 39, No. 2

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