The Reason of Limestone Formation Thickering and Its Effect to Reservoir in the North of Oriente Basin

doi:10.11885/j.issn.1674-5086.2020.10.15.01

Abstract

Abstract: The Oriente Basin is one of the most important basin with hydrocarbon source rocks in South American. The major petroleum system is Creatures Napo sandstone. The Napo Formation developed in tide sediment environment with the complex lithology including quartz sandtone, glauconite sandstone, limestone and shale. There are 3 sets of limestone formation in the Napo named as A, B, C limestone from lower to upper which are the marker formation. The A limestone in the north of Oriente Basin develops stably with average thick 40 ft. However several abnormal bodies of A limestone had been found in the northern of Oriente Basin which show the high seismic amplitude. It had been proved that some good sand bodies of A limestone thickened, which makes it difficult to predict the reservoir accurately by seismic data. The regional geology, petrophysics and geophysics data had been used to analysis the reason of A limestone formation thickening. By the seismic forward modeling based on the seismic response character analysis of good sandbody in the normal sedimentation, the seismic response character of sand below the different A limestone had been study. According to the seismic inversion result, many technology had been comparatively analyzed and stack bond seismic data analysis technology based on CRP and spectrum decomposition technology based on tuning body thickness had been used to get off the effect of A limestone thickening. Drilling results have proved the effectiveness of the technologies.

Key words: formation thicker, sand body predicting, seismic forward, A limestone, Oriente Basin

CLC Number:

TE312

CHEN Jie, TONG Mingsheng, CHEN Guo. The Reason of Limestone Formation Thickering and Its Effect to Reservoir in the North of Oriente Basin[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(6): 43-53.

0
/ / Recommend

Add to citation manager EndNote|Ris|BibTeX

URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2020.10.15.01

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2022/V44/I6/43

References

[1] 谢寅符, 季汉成, 苏永地, 等. Oriente-Maranon盆地石油地质特征及勘探潜力[J]. 石油勘探与开发, 2010, 37(1):51-56. XIE Yinfu, JI Hancheng, SU Yongdi, et al. Petroleum geology and exploration potential of Oriente-Maranon Basin[J]. Petroleum Exploration and Development, 2010, 37(1):51-56.
[2] 马中振, 谢寅符, 陈和平, 等.南美典型前陆盆地斜坡带油气成藏特征与勘探方向选择——以厄瓜多尔Oriente盆地M区块为例[J].天然气地球科学, 2014, 25(3):379-386. doi:10.11764/j.issn.1672-1926.2014.03.379 MA Zhongzhen, XIE Yinfu, CHEN Heping, et al. Hydrocarbon accumulation feature and exploration direction selection:Taking M Block of Oriente Basin, Ecuador as an example[J]. Natural Gas Geoscience, 2014, 25(3):379-386. doi:10.11764/j.issn.1672-1926.2014.03.379
[3] 刘志斌, 解吉高, 薛冬, 等.高速灰岩屏蔽层下伏储层预测技术组合研究与应用[J].中国海上油气, 2018, 30(6):51-61. doi:10.11935/j.issn.1673-1506.2018.06.006 LIU Zhibin, JIE Jigao, XUE Dong, et al. Research and application of underlying reservoir prediction technology combination for high velocity limestone shielding layer[J]. China Offshore and Gas, 2018, 30(6):51-61. doi:10.11935/j.issn.1673-1506.2018.06.006
[4] 王伟锋, 尹以东, 赵玉生, 等.能量屏蔽作用的类型、形成机制及应对方法[J].中国石油大学学报(自然科学版), 2011, 35(5):44-50. doi:10.3969/j.issn.1673-5005.2011.05.008 WANG Weifeng, YIN Yidong, ZHAO Yusheng, et al. Types of energy shielding effect, formation mechanism and countermeasures[J]. Journal of China University of Petroleum (Edition of Natural Science), 2011, 35(5):44-50. doi:10.3969/j.issn.1673-5005.2011.05.008
[5] 张军华, 刘振, 刘炳杨, 等.强屏蔽层下弱反射储层特征分析及识别方法[J].特种油气藏, 2012, 19(1):23-26. doi:10.3969/j.issn.1006-6535.2012.01.004 ZHANG Junhua, LIU Zhen, LIU Bingyang, et al. Analysis and identification of reservoir characteristics of weak reflectors under strong shielding layer[J]. Special Oil & Gas Reservoir, 2012, 19(1):23-26. doi:10.3969/j.issn.1006-6535.2012.01.004
[6] MATHALONE J M P, MONTOYA M. Petroleum geology of the sub-Andean basins of Peru[C]//TANKARD A J, SORUCO S R, WELSINK H J. AAPG memoir 62:Petroleum basins of South America. Tulsa:AAPG, 1995. doi:10.3758/BF03208965
[7] HIGLEY D K. The Putumayo-Oriente-Maranon province of Colombia, Ecuador, and Peru Mesozoic-Cenozoic and Paleozoic petroleum systems[R]. USA:US Geological Survey Publication, 2001. doi:10.3133/ds63
[8] DASHWOOD M F, ABBOTTS I L. Aspects of the petroleum geology of the Oriente Basin, Ecuador[C]. Geological Society of London Special Publications, 1990, 50:89-117. doi:10.1144/GSL.SP.1990.050.01.06
[9] 何彬, 刘毅, 郝斐, 等.奥连特盆地油气系统特征与勘探潜力[J].石油天然气学报, 2011, 33(4):34-38. doi:10.3969/j.issn.1000-9752.2011.04.008 HE Bin, LIU Yi, HAO Fei, et al. The characteristics of hydrocarbon system and exploration potential of Oriente Basin[J]. Journal of Oil and Gas Technology, 2011, 33(4):34-38. doi:10.3969/j.issn.1000-9752.2011.04.008
[10] 刘畅, 张琴, 谢寅符, 等.厄瓜多尔Oriente盆地东北部区块白垩系层序地层格架及发育模式[J].沉积学报, 2014, 32(6):1123-1131. LIU Chang, ZHANG Qin, XIE Yinfu, et al. Sequence stratigraphic framework and development model of the Cretaceous in Northeast Block, Oriente Basin, Ecuador[J]. Acta Sedimentologica Sinica, 2014, 32(6):1123-1131.
[11] ESTUPIÑAN J, MARFIL R, SCHERER M, et al. Reservoir sandstones of the Cretaceous Napo Formation U and T members in the Oriente Basin, Ecuador:Links between diagenesis and sequence stratigraphy[J]. Journal of Petroleum Geology, 2010, 33(3):221-245. doi:10.1111/j.1747-5457.2010.00475.x
[12] GAIBOR J, HOCHULI J P A, WINKLER W, et al. Hydrocarbon source potential of the Santiago Formation, Oriente Basin, SE of Ecuador[J]. Journal of South American Earth Sciences, 2008, 25(2):145-156. doi:10.1016/j.jsames.2007.07.002
[13] 张静, 胡见义, 罗平, 等.深埋优质白云岩储集层发育的主控因素与勘探意义[J].石油勘探与开发, 2010, 37(2):203-210. ZHANG Jing, HU Jianyi, LUO Ping, et al. Master control factors of deep high-quality dolomite reservoirs and the exploration significance[J]. Petroleum Exploration and Development, 2010, 37(2):203-210.
[14] 张学丰, 胡文瑄, 张军涛. 白云岩成因相关问题及主要形成模式[J]. 地质科技情报, 2006, 25(5):32-40. doi:10.3969/j.issn.1000-7849.2006.05.006 ZHANG Xuefeng, HU Wenxuan, ZHANG Juntao. Critical problems for dolomite formation and dolomitization models[J]. Geological Science and Technology Information, 2006, 25(5):32-40 doi:10.3969/j.issn.1000-7849.2006.05.006
[15] TANKARD A, AUKES P, RAKHIT K. Regional framework of basin evolution and hydrodynamics in the southern part of South America:A methodology for hydrocarbon exploration and exploitation[M]. Tulsa:AAPG, 1997.
[16] BABY P, RIVADENEIRA M, BARRAGAN R, et al. Thick-skinned tectonics in the Oriente Foreland Basin of Ecuador[J]. Geological Society of London Special Publications, 2013, 377(1):59. doi:10.1144/SP377.1
[17] BARRAGAN R, BABY P. A cretaceous hot spot in the Ecuadorian Oriente Basin:Geochemical, geochronological, and tectonic indicators[C]. Gottingen:Fourth ISAG, 1999.
[18] TANKARD A, ULIANA M A, WELSINK H J, et al. Structural and tectonic controls of basin evolution in Southwestern Gondwana during the Phanerozoic[J]. AAPG Memoir, 1995, 62:5-52.
[19] TANKARD A J, SORUCO S R, WELSINK H J. Petroleum basins of South America[M]. Tulsa:AAPG Memoir, 1995. doi:10.1306/M62593
[20] BARRAGAN R, BABY P, DUNCAN R. Cretaceous alkaline intra-plate magmatism in the Ecuadorian Oriente Basin:Geochemical, geochronological and tectonic evidence[J]. Earth and Planetary Science Letters, 2005, 236(3-4):670-690. doi:10.1016/j.epsl.2005.03.016
[21] BROOKFIELD M E, HEMMINGS D P, STRAATEN P V. Paleoenvironments and origin of the sedimentary phosphorites of the Napo Formation (late Cretaceous, Oriente Basin, Ecuador)[J]. Journal of South American Earth Sciences, 2009, 28(2):180-192. doi:10.1016/j.jsames.2009.02.004
[22] CHRISTOPHOUL F, BABY P, DAVILA C. Stratigraphic responses to a major tectonic event in a foreland basin:The Ecuadorian Oriente Basin from Eocene to Oligocene times[J]. Tectonophysics, 2002, 345(1-4):281-298. doi:10.1016/S0040-1951(01)00217-7
[23] ESTUPIÑAN J, MARFIL R, DELGADO A, et al. The impact of carbonate cements on the reservoir quality in the Napo Fm sandstones (Cretaceous Oriente Basin, Ecuador)[J]. Geologica Acta, 2007, 5(1):89-108.
[24] MARKSTEINER R, ALEMAN A M. Petroleum systems along the fold belt associated to the Marañón-Orien-Putumayo (MOP) foreland basins[C]. Columbia:6th Simposio Bolivariano-Exploracion Petrolera en las Cuencas Subandinas, 1997. doi:10.3997/2214-4609-pdb.117.054eng