Preliminary study on nanopores, nanofissures, and in situ accumulation of Gulong shale oil

doi:10.13745/j.esf.sf.2022.8.32-en

Earth Science Frontiers ›› 2023, Vol. 30 ›› Issue (1): 260-280.DOI: 10.13745/j.esf.sf.2022.8.32-en

Special Issue: Research Articles (English)

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Preliminary study on nanopores, nanofissures, and in situ accumulation of Gulong shale oil

HE Wenyuan¹^,²()

1. Daqing Oilfield Co Ltd, Daqing 163002, China
2. Heilongjiang Provincial Key Laboratory of Continental Shale Oil, Daqing 163712, China

Received:2022-07-07 Revised:2022-07-30 Online:2023-01-25 Published:2022-10-20
About author:HE Wenyuan, male, PhD, adjunct professor, China University of Petroleum; He has won the first Prize of National Science and Technology Progress, etc. At present, he is engaged in exploration work in China National Oil and Gas Exploration and Development Co., Ltd. (CNODC). E-mail: hewenyuan@cnpcint.com
Supported by:
National Science and Technology Major project “Main controlling factors of large lithologic reservoir formation and favorable zone evaluation”(2017ZX05001-002)

Abstract

HE Wenyuan. Preliminary study on nanopores, nanofissures, and in situ accumulation of Gulong shale oil[J]. Earth Science Frontiers, 2023, 30(1): 260-280.

Figures/Tables 19

References 28

[1]	HE W Y. Discovery of nm pores and nm fractures in Gulong shale oil reservoir and its significances[J]. Petroleum Geology and Oil Field Development in Daqing, 2022, 41(1): 1-15.
[2]	CHEN Z N, CHEN F J. Kinematic characteristics of inversion structures in Songliao Basin[J]. Geoscience, 1996, 10(3): 390-396. DOI URL
[3]	WANG G Y, WANG F L, MENG Q, et al. Stratgic significance and research direction for Gulong shale oil[J]. Petroleum Geology and Oil Field Development in Daqing, 2020, 39(3): 8-19.
[4]	SUN L D. Shale oil in Gulong Sag[J]. Petroleum Geology and Oil field Development in Daqing, 2020, 39(3): 1-7.
[5]	WANG F L, FU Z G, WANG J K, et al. Characteristics and clasiification of Gulong shale reservoir in Songliao Basin[J]. Petroleum Geology and Oil Field Development in Daqing, 2021, 40(5): 144-156.
[6]	CUI B W, ZHANG S, FU X L, et al. Organic sequence stratigraphic divition and its influencing factors analysis for Gulong shale in Songliao Basin[J]. Petroleum Geology and Oil Field Development in Daqing, 2021, 40(5): 13-27.
[7]	PANG Y M, ZHANG Y Q, CAI M, et al. Technical and economic limit of horizontal well development for Gulong shale oil in Songliao Basin[J]. Petroleum Geology and Oil Field Development in Daqing, 2021, 40(5): 134-143.
[8]	WANG Y Z, WANG R, DAI X, et al. Compartment development design method of horizontal well in Songliao[J]. Petroleum Geology and Oil Field Development in Daqing, 2021, 40(5): 157-169.
[9]	FENG Z H, HUO Q L, ZENG H S, et al. Organic matter compositions and organic pore evolution in Gulong shale of Songliao Basin[J]. Petroleum Geology and Oil Field Development in Daqing, 2021, 40(5): 40-55.
[10]	KRIZEK R J, EDIL T B, OZAYYDIN I K. Preparation and identification of clay samples with controlled fabric[J]. Engineering Geology, 1975, 9: 13-38. DOI URL
[11]	BENNETT R H, BRYANT W R, KELLER G H. Clay fabric and geotechnical properties of selected submarine cores from the Mississippi Delta[J]. NOAA Professional Paper, 1977, 9: 86.
[12]	BRYANT W R, KELLER G H. Clay fabric of selected submarine sediments: fundamental properties and models[J]. Journal of Sedimentary Petrology, 1981, 51: 217-32.
[13]	SCHIEBER J, REMUS L, KEVIN B, et al. An SEM study of porosity in the Eagle Ford Shale of Texas: pore types and porosity distribution in a depositional and sequencestratigraphic context[J]. AAPG Memoir, 2016, 110: 167-186.
[14]	ZOU C N, ZHU R K, BAI B, et al. First discovery of nano-pore throat in oil and gas reservoir in China and its scientific value[J]. Acta Petrologica Sinica, 2011, 27(6): 1857-1864.
[15]	ZOU C N, YANG Z, TAO S Z, et al. Nano-hydrocarbon and the accumulation in coexisting source and reservoir[J]. Petroleum Exploration and Development, 2012, 39(1): 13-26.
[16]	ZOU C N, ZHANG G S, YANG Z, et al. Geological concepts, characteristics, resource potential and key techniques of unconventional hydrocarbon: on unconventional petroleum geology[J]. Petroleum Exploration And Development, 2013, 40(4): 385-454.
[17]	SWAIN F M. Geochemistry of humus[M] //BREGERI A. Organic geochemistry. New York: Pergamon Press, 1963, 81-147.
[18]	AVNIMELECH Y, MENZEL R G. Coflocculation of algae and clay to clarify turbid impoundments[J]. Journal of Soil and Water Conservation, 1984, 39: 200-203.
[19]	AVNIMELECH Y, TROEGER B W, REED L W. Mutual flocculation of algae and clay: evidence and implications[J]. Science, 1982, 216: 63-65. PMID
[20]	VAN OLPHEN H. An introduction to clay colloid chemistry[J]. Soil Science Society of America Journal, 1963, 97(4): 290.
[21]	DEGENS E T. Geochemistry of sediments: a brief survey[M]. New Jersey: Prentice-Hall, 1965: 342.
[22]	HARE E. Geochemistry of proteins, peptides and amino acids[M]//EGLINTON G, MURPHY M T J. Organic geochemistry: methods and results. Berlin: Springer-Verlag, 1969: 438-63.
[23]	MOON C F, HURST C W. Fabric of muds and shales: an overview[J]. Geological Society, London, Special Publications, 1984, 15: 579-593. DOI URL
[24]	LIANG D G, RAI L H, DAI D S, et al. A recognition of the prospecting potential of Jurassic large-area and non-conventional oils in the central-northern Sichuan Basin[J]. Acta Petrolei Sinica, 2011, 32(1): 8-17.
[25]	LIU B, LÜ Y F, RAN Q C, et al. Geological conditions and exploration potential of shale oil in Qingshankou Formation, northern Songliao Basin[J]. Oil and Gas Geology, 2014, 35(2): 280-285.
[26]	JIN X, LI G X, MENG S W, et al. Microscale comprehensive evaluation of continental shale oil recoverability[J]. Petroleum Exploration and Development, 2021, 48(1): 222-232.
[27]	FENG Z H, LIU B, SHAO H M, et al. The diagenesis evolution and accumulating performance of mud shale in Qingshankou Formation in Gulong Sag[J]. Petroleum Geology and Oil Field Development in Daqing, 2020, 39(3): 72-85.
[28]	HE W Y, MENG Q, FENG Z H, et al. In-situ accumulation theory and exploration and development practice of Gulong shale oil in Songliao Basin[J]. Acta Petrolei Sinica, 2022, 43(1): 1-14.

No.	Mass fraction (%)
No.	C	O	Na	Mg	Al	Si	K	Fe
70	41.12	21.54	0.31	0.61	9.31	17.56	5.15	2.31
71	35.66	23.55	0.30	0.58	10.95	20.03	5.79	2.55
72	40.83	13.53	0.33	0.58	11.13	22.84	7.19	3.02
73	50.95	20.26	0.83	0.35	5.56	15.22	2.42	1.66
74	56.44	18.07	0.89	0.25	4.19	12.99	1.72	2.18
75	26.41	32.72	4.84		7.50	23.59	0.26	3.63
76	16.99	33.35	4.11		10.53	32.09	2.08	0.85
77	60.47	12.55	1.11	0.12	3.12	13.24	0.98	5.39
78	41.42	16.36			2.08	37.15	2.34	0.65
79	31.26	19.41	0.54	0.55	8.05	34.64	3.78	1.77
82	72.24	15.66	0.46	0.13	1.70	6.56	0.82	0.74
80	31.84	19.42	0.28	0.81	11.65	27.72	5.78	2.50
81	82.69	10.77	0.68		0.63	2.17	0.24	0.36
83	44.19	21.45	0.51	1.21	6.72	13.73	3.43	3.68
84	53.87	21.30	0.39	0.39	5.33	13.99	2.78	1.31
85	80.18	7.19	0.29	0.14	2.39	5.72	1.29	1.26
86	91.46	0.21	1.51	3.70	0.44	0.05	0.76	1.36
87	89.24		0.28	0.12	1.80	4.42	0.90	1.21
Average	52.63	18.08	1.04	0.68	5.73	16.87	2.65	2.02

No.	Mass fraction (%)
No.	C	O	Na	Mg	Al	Si	K	Fe
70	41.12	21.54	0.31	0.61	9.31	17.56	5.15	2.31
71	35.66	23.55	0.30	0.58	10.95	20.03	5.79	2.55
72	40.83	13.53	0.33	0.58	11.13	22.84	7.19	3.02
73	50.95	20.26	0.83	0.35	5.56	15.22	2.42	1.66
74	56.44	18.07	0.89	0.25	4.19	12.99	1.72	2.18
75	26.41	32.72	4.84		7.50	23.59	0.26	3.63
76	16.99	33.35	4.11		10.53	32.09	2.08	0.85
77	60.47	12.55	1.11	0.12	3.12	13.24	0.98	5.39
78	41.42	16.36			2.08	37.15	2.34	0.65
79	31.26	19.41	0.54	0.55	8.05	34.64	3.78	1.77
82	72.24	15.66	0.46	0.13	1.70	6.56	0.82	0.74
80	31.84	19.42	0.28	0.81	11.65	27.72	5.78	2.50
81	82.69	10.77	0.68		0.63	2.17	0.24	0.36
83	44.19	21.45	0.51	1.21	6.72	13.73	3.43	3.68
84	53.87	21.30	0.39	0.39	5.33	13.99	2.78	1.31
85	80.18	7.19	0.29	0.14	2.39	5.72	1.29	1.26
86	91.46	0.21	1.51	3.70	0.44	0.05	0.76	1.36
87	89.24		0.28	0.12	1.80	4.42	0.90	1.21
Average	52.63	18.08	1.04	0.68	5.73	16.87	2.65	2.02

Preliminary study on nanopores, nanofissures, and in situ accumulation of Gulong shale oil

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