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DOI | 10.1306/06191917331 |
Diagenetic differences caused by gas charging with different compositions in the XF13 block of the Yinggehai Basin, South China Sea | |
Duan, Wei1,2,3; Li, Chun-Feng1,3; Chen, Xue-Gang1; Luo, Cheng-Fei4; Tuo, Lei5; Liu, Jian-Zhang6 | |
2020-04-15 | |
发表期刊 | AAPG BULLETIN |
ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2020 |
卷号 | 104期号:4页码:735-765 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The gas charging influences on dissolution, cementation, and clay transformation are still largely unknown during the migration and accumulation of hydrocarbons. The reservoirs in the upper Huangliu Formation of the XF13 block in the Yinggehai Basin, South China Sea, were charged by CO2 and gaseous hydrocarbons, offering us an ideal opportunity to quantitatively study the diagenetic differences caused by gas charging with different compositions. The techniques and methods used in this study include optical microscopy, scanning electron microscopy, cathodoluminescence, x-ray diffraction, chemical analysis of formation water, stable isotope analyses, and fluid inclusion examination. These analyses demonstrate that the late-stage charging of CO2-rich thermal fluid in the wells near the diapir zone modified porosity, permeability, temperature, fluid pH, and contents of K+, Na+, Mg2+, Fe2+, and other ions. Natural gas accumulations with high maturity and high CO2 contents presented at wells XF13A and XF13B near the diapir zone resulted from episodic mixing and modification. Wells far from the diapir zone (e.g., XF13E and XF13F) mostly show alkane enrichment. Late-stage charging of CO2-rich thermal fluids at wells XF13A and XF13B (in a closed system with episodic semiopen events) has resulted in significant dissolution and caused reservoirs with high porosity but low permeability. In contrast, wells far from the diapir zone were only charged by early-stage hydrocarbons, and the porosity and permeability are relatively high. This study is important in predicting reservoir quality according to gas compositions of reservoirs. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000526969200001 |
WOS关键词 | MIOCENE HUANGLIU FORMATION ; EPISODIC FLUID INJECTIONS ; DEEPLY BURIED SANDSTONES ; RESERVOIR QUALITY ; CARBONATE RESERVOIR ; CO2 RESERVOIR ; POROSITY ; WATER ; FIELD ; FLOW |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/248729 |
专题 | 地球科学 |
作者单位 | 1.Zhejiang Univ, Inst Marine Geol & Resources, Zhoushan, Peoples R China; 2.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Tech, Qingdao, Peoples R China; 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China; 4.EnerTech Drilling & Prod Co, CNOOC, Zhanjiang, Peoples R China; 5.CNOOC Ltd, Zhanjiang Branch, Zhanjiang, Peoples R China; 6.China Univ Geosci, Key Lab Tecton & Petr Resources, Minist Educ, Wuhan, Peoples R China |
推荐引用方式 GB/T 7714 | Duan, Wei,Li, Chun-Feng,Chen, Xue-Gang,et al. Diagenetic differences caused by gas charging with different compositions in the XF13 block of the Yinggehai Basin, South China Sea[J]. AAPG BULLETIN,2020,104(4):735-765. |
APA | Duan, Wei,Li, Chun-Feng,Chen, Xue-Gang,Luo, Cheng-Fei,Tuo, Lei,&Liu, Jian-Zhang.(2020).Diagenetic differences caused by gas charging with different compositions in the XF13 block of the Yinggehai Basin, South China Sea.AAPG BULLETIN,104(4),735-765. |
MLA | Duan, Wei,et al."Diagenetic differences caused by gas charging with different compositions in the XF13 block of the Yinggehai Basin, South China Sea".AAPG BULLETIN 104.4(2020):735-765. |
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