四川盆地开江-梁平海槽周缘晚二叠世长兴期台缘礁滩沉积结构及其差异性

doi:10.11743/ogg20220408

Abstract

Abstract:

The reef-shoal gas reservoirs of Changxing Formation around the Kaijiang-Liangping trough in the Sichuan Basin are the major targets of natural gas exploration and development in eastern Sichuan Basin. However， few studies have been seen on the sedimentary architectures of reef-shoal around platform margin and their differences as of now. An integrated analysis of cores， thin sections， well logs， and seismic data， is applied to disclose the changes of slope angle at the front， lithologic composition of organic reef-shaol facies， reef cycle， external contour， vertical superimposition pattern， lateral migration， spatial distribution characteristics and differences around the trough， coupled with the seismic stratigraphic framework around the trough. The results are as follows. First， the Kaijiang-Liangping trough formed during the Late Permian rifting， when the NW-trending tensional basement-rooted faults were active， has nearly U-shaped platform marginal zones developed around. The palaeotectonic pattern of platform margin is characterized by “deep water in the steep northwest and shallow water in the wide and gentle southeast”. Second， the sedimentary architectures of platform margins around can be classified into four types， that is， the fault-controlled steep slope type with accretion rim， sedimentary steep slope type with accretion rim， gentle slope break type with retrograding strip， and extremely gentle slope type with discrete migration. These architectures are in alternative distribution around the trough， the western and northern platform margin dominated by fault-controlled or vertical superimposed steep slope type and the eastern and southern by extremely gentle slope type with discrete migration. Third， tectonic palaeogeomorphology and sea level eustacy jointly control the formation of sedimentary architectures of the platform margin in the study area and their differences. Among others， the former controls the pattern of the platform margin and accommodation of organic reef， and the latter controls the sedimentary architecture， migration and superposition of reef-shoal.

Key words: organic reef-shoal facies, platform margin, sedimentary architecture, Changxing Formation, Late Permian, Kaijiang-Liangping trough, Sichuan Basin

CLC Number:

TE121.3

Xu Chen, Mingyi Hu, Changhai Xu, Dawei Wang. Sedimentary architectures of reef-shoal facies at the platform margin during Changxing times of the Late Permian around Kaijiang-Liangping trough in the Sichuan Basin and their differences[J]. Oil & Gas Geology, 2022, 43(4): 833-844.

Figures/Tables 9

Fig.1

Fig.2

Fig.3

Table 1

Statistics of sedimentary parameters of organic reef?shoal facies from typical wells in the Changxing Formation at the platform margins around the Kaijiang?Liangping trough"

区块	井号	主要岩石类型	次要岩石类型	台缘带宽度/m	前缘斜坡角度/（^°）	地层厚度/m	礁厚度/m	滩厚度/m	白云岩厚度/m	礁滩厚度/地层厚度（Kr）	礁旋回期次/礁滩总期次
龙岗	龙岗1	生物礁灰岩、生屑灰岩	泥晶灰岩、少量白云岩	1 452	41	315	101	160	6	0.82	4/5
	龙岗3	生物礁灰岩、生屑灰岩	泥晶灰岩、少量白云岩	1 325	42	324	132	130	11	0.81	4/5
	龙岗6	生屑灰岩、生物礁灰岩	泥晶灰岩、少量白云岩	1 798	35	268	101	110	8	0.74	3/5
龙会场	铁山5	泥晶灰岩、礁灰岩、生屑灰岩	生屑云岩及白云岩	2 041	32	263	64	77	5	0.53	2/4
	浦西1	泥晶灰岩、生屑灰岩	少量白云岩	1 750	31	295	55	65	2	0.42	2/4
	龙岗81	泥晶灰岩、生屑灰岩	生物礁灰岩、少量白云岩	1 900	24	254	43	89	4	0.51	1/3
龙门	七里8	生屑灰岩	泥晶灰岩、生物礁灰岩	1 924	32	288	39	45	9	0.34	2/3
	天东10	生屑灰、白云岩	泥晶灰岩、少量礁灰岩	2 310	27	281	30	75	30	0.46	2/4
	龙岗84	泥晶灰岩、生屑灰岩	礁灰岩	2 400	26	263	18	58	5	0.48	2/4
七里北	七里北2	生屑灰岩、礁灰岩	生屑云岩、白云岩	1 900	32	279	55	110	50	0.59	3/5
七里北	七里北101	泥晶灰岩、生屑灰岩	生屑云岩、礁灰岩、白云岩	2 180	28	230	69	88	66	0.62	2/3
黄龙场	黄龙1	泥晶灰岩、生屑灰岩	生屑云岩、生物礁灰岩、白云岩	2 120	24	286	27	66	15	0.36	2/2
黄龙场	黄龙8	泥晶灰岩、生屑灰岩	生物礁灰岩	2 330	18	212	33	82	20	0.52	1/2
五百梯	温泉3	泥晶灰岩、生物礁灰岩	生屑灰岩、白云岩	3 580	9	268	45	74	32	0.27	2/3
	天东11	泥晶灰岩、生物礁灰岩	生屑灰岩、白云岩	3 620	8	213	65	20	79	0.39	2/2
	天东2-11	泥晶灰岩、礁灰岩	砂屑灰岩、白云岩	3 715	7	210	43	41	45	0.41	2/2
云安场	云安12	生屑灰岩、礁灰岩、泥晶灰岩	砂屑灰岩	3 800	5	168	35	36	32	0.33	2/4
	云安14	砂屑灰岩、泥晶灰岩	生物礁灰岩	3 848	4	190	25	37	37	0.24	1/1
	兴隆1	泥晶灰岩、礁灰岩	生屑云岩	3 781	2	170	28	24	20	0.25	1/2

Table 1

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

References 27

1	马新华，杨雨，文龙，等.四川盆地海相碳酸盐岩大中型气田分布规律及勘探方向［J］.石油勘探与开发，2019，46（1）：1-13.
	Ma Xinhua， Yang Yu， Wen Long， et al. Distribution regularity and exploration direction of large and medium‑sized Marine carbonate gas fields in Sichuan Basin［J］. Petroleum Exploration and Development，2019，46（1）：1-13.
2	马永生，何治亮，赵培荣，等.深层-超深层碳酸盐岩储层形成机理新进展［J］.石油学报，2019， 40（12）：1415-1425.
	Ma Yongsheng， He Zhiliang， Zhao Peirong， et al. New advances in ultra‑deep carbonate reservoir formation mechanism ［J］. Acta Petroleum Sinica，2019，40（12）：1415-1425.
3	冯林杰，蒋裕强，刘菲，等.川东地区开江-梁平海槽南段飞仙关组鲕滩储层特征及主控因素［J］.石油学报，2021，42（10）：1287-1298.
	Feng Linjie， Jiang Yuqiang， Liu Fei， et al. Characteristics and controlling factors of Oolitic shoal reservoirs in Feixianguan Formation， southern Kaijiang‑Liangping trough， eastern Sichuan Basin ［J］. Acta Petroleum Sinica， 201，42（10）：1287-1298.
4	唐雨，张云峰，胡林辉，等.开江-梁平海槽西侧中东段长兴组台缘储层特征及差异性［J］.沉积学报，2021，39（6）：1593-1608.
	Tang Yu， Zhang Yunfeng， Hu Linhui， et al. Characteristics and differences of platform edge reservoirs of Changxing formation in the middle section of the western Kaijiang‑Liangping trough ［J］. Acta Sedimentologica Sinica， 201，39（6）：1593-1608.
5	彭才，郑荣才，陈辉，等.开江-梁平海槽东侧长兴组生物礁发育主控因素及地震精细预测技术［J］.石油实验地质，2019，41（4）：614-620.
	Peng Cai， Zheng Rongcai， Chen Hui， et al. Main controlling factors of reef development and fine seismic prediction technology of Changxing formation on the east side of Kaijiang‑Liangping trough［J］. Petroleum Geology & Experiment，2019，41（4）：614-620.
6	武赛军，魏国齐，杨威，等.开江-梁平海槽东侧长兴组台缘生物礁发育特征及油气地质勘探意义［J］.中国石油勘探，2019，24（4）：457-465.
	Wu Saijun， Wei Guoqi， Yang Wei， et al. Development characte‑ ristics and petroleum exploration significance of reef in platform margin of Changxing formation in the east of Kaijiang‑Liangping trough［J］. China Petroleum Exploration，2019，24（4）：457-465.
7	曹毅，陈军斌，刘振，等.缓坡型台缘生物礁沉积特征及其对产能的影响——以四川盆地开江-梁平海槽东侧长兴组生物礁为例［J］.东北石油大学学报，2019，43（2）：12-20.
	Cao Yi， Chen Junbin， Liu Zhen， et al. Sedimentary characteristics and its effect on productivity of reef in gentle slope platform margin： A case study of Changxing formation reef in the east of Kaijiang-Liangping trough， Sichuan Basin［J］.Journal of Northeast Petroleum University，2019，43（2）：12-20.
8	高平，李双建，何治亮，等. 四川盆地广元-梁平古裂陷构造-沉积演化［J］.石油与天然气地质，2020，41（4）：784-799.
	Gao Ping， Li Shuangjian， He Zhiliang， et al. Tectono⁃sedimentary evolution of Guangyuan‑Lliangping paleo‑rift in Sichuan Basin［J］. Oil & Gas Geology，2020，41（4）：784-799.
9	邢凤存，陆永潮，郭彤楼，等.碳酸盐岩台地边缘沉积结构差异及其油气勘探意义——以川东北早三叠世飞仙关期台地边缘带为例［J］.岩石学报，2017，33（4）：1305-1316.
	Xing Fengcun， Lu Yongchao， Guo Tonglou， et al. Differences in sedimentary structure of carbonate platform margin and its significance for oil and gas exploration： A case study of Feixianguan platform margin belt of early Triassic in northeast Sichuan Basin［J］.Acta Petrologica Sinica，2017，33（4）：1305-1316.
10	汪泽成，赵文智，胡素云，等. 克拉通盆地构造分异对大油气田形成的控制作用——以四川盆地震旦系—三叠系为例［J］. 天然气工业， 2017， 37（1）：9-23.
	Wang Zecheng， Zhao Wenzhi， Hu Suyun， et al. The controlling effect of tectonic differentiation on the formation of large oil and gas fields in craton Basin： A case study of Sinian‑Triassic in Sichuan Basin［J］. Natural Gas Industry， 2017， 37（1）：9-23.
11	蒋裕强，周亚东，陈智雍，等.川东地区台内洼地二叠系生物礁、滩沉积格局及勘探意义［J］.天然气地球科学，2019，30（11）：1539-1550.
	Jiang Yuqiang， Zhou Yadong， Chen Zhiyong， et al. Sedimentary pattern and exploration significance of Permian reef and shoal in Tainei sag， eastern Sichuan Basin［J］. Natural Gas Geoscience，2019，30（11）：1539-1550.
12	马德芹，田景春，林小兵，等.四川盆地二叠系长兴组生物礁发育的差异性及控制因素［J］.石油与天然气地质，2020，41（6）：1176-1187.
	Ma Deqin， Tian Jingchun， Lin Xiaobing， et al. Differences and controlling factors of reef development in Permian Changxing Formation， sichuan Basin［J］. Oil & Gas Geology， 2020，41（6）：1176-1187.
13	徐安娜，汪泽成，江兴福，等.四川盆地开江-梁平海槽两侧台地边缘形态及其对储层发育的影响［J］.天然气工业，2014，34（4）：37-43.
	Xu Anna， Wang Zecheng， Jiang Xingfu， et al. Characteristics of platform margin on both sides of Kaijiang‑Liangping trough and its influence on reservoir development in Sichuan Basin［J］.Natural Gas Industry，2014，34（4）：37-43.
14	Zhu Chuanqing， Rao Song， Hu Shengbiao. Paleo‑heat flow ano⁃maly at the end of middle Permian in NE SichuanBasin， SW China： Did an ocean trough exist［J］. Advanced Materials Research，2013，2482：734-737.
15	王兴志，李博，杨西燕，等.四川盆地北部中二叠世晚期“广元—旺苍”海槽特征及其油气地质意义［J］.石油勘探与开发，2021，48（3）：562-574.
	Wang Xingzhi， Li Bo， Yang Xiyan， et al. Characteristics of the Late middle Permian Guangyuan‑wangcang trough and its petroleum geological significance in the northern Sichuan Basin［J］. Petroleum Exploration and Development， 2021，48（3）：562-574.
16	周路，李东，吴勇，等.四川盆地北部长兴组生物礁地震响应特征与分布规律［J］.岩石学报，2017，33（4）： 1189-1203.
	Zhou Lu， Li Dong， Wu Yong， et al. Seismic response characteristics and distribution of reef in Changxing formation， northern Sichuan Basin［J］. Acta Petrologica Sinica，2017，33（4）： 1189-1203.
17	Jiang Yuqiang， Zhou Yadong， Chen Zhiyong， et al. Sedimentary pattern and exploration significance of Permian reefs and shoals around the Wusheng‑shizhu intra‑platform depression， eastern Sichuan Basin， China［J］. Journal of Natural Gas Geoscience，2020，5（2）：57-67.
18	蒋裕强，邓虹兵，易娟子，等.开江-梁平海槽西侧飞仙关组不同类型鲕滩储层特征及其控制因素研究［J］.特种油气藏，2020，27（1）：17-24.
	Jiang Yuqiang， Deng Hongbing， Yi Juanzi， et al. Characteristics and controlling factors of different types of oolitic beach reservoirs in Feixianguan formation on the west side of Kaijiang‑Liangping Trough［J］. Special Oil and Gas Reservoirs，2020，27（1）：17-24.
19	Gu Yifan， Liao Yisha， Xu Changhai， et al. Genesis of Upper Permian Changxing Formation dolomites， south of Kaijiang⁃Liangping Trough， SW China： Evidence from petrology， geochemistry， and fluid inclusions［J］. Arabian Journal of Geosciences，2021，14（8）：1-18.
20	吴勇，周路，钟斐艳，等.基于坡度属性的生物礁边界精细预测方法——以四川盆地罗顶寨地区二叠系长兴组为例［J］.石油勘探与开发，2017，44（6）：907-918.
	Wu Yong， Zhou Lu， Zhong Feiyan， et al. Fine prediction method of reef boundary based on slope attribute： A case study of Permian Changxing formation in Luodingzhai area， Sichuan Basin［J］. Petroleum Exploration and Development，2017，44（6）：907-918.
21	苏成鹏，谭秀成，刘宏，等.环开江-梁平海槽长兴组台缘礁滩相储层特征及成岩作用［J］.中国地质，2016，43（6）：2046-2058.
	Su Chengpeng， Tan Xiucheng， Liu Hong， et al. Reservoir characteristics and diagenesis of platform margin reef‑shoal facies of Changxing formation in Huankaijiang‑Liangping trough［J］. China Geology，2016，43（6）：2046-2058.
22	郭旭升，胡东风，李宇平，等.四川盆地元坝气田发现与理论技术［J］.石油勘探与开发，2018，45（1）：14-26.
	Guo Xusheng， Hu Dongfeng， Li Yuping， et al. Discovery and theoretical technology of Yuanba gas field， Sichuan Basin［J］. Petroleum Exploration and Development，2018，45（1）：14-26.
23	冉崎，陶夏妍，徐昌海，等. 缓坡型小生物礁体的精细雕刻与“一井双礁”高产气井的突破——以川东地区长兴组小生物礁群为例［J］.天然气工业，2021，41（2）：10-18.
	Ran Qi， Tao Xiayan， Xu Changhai， et al. Fine carving of small reef of gentle slope and breakthrough of “one well and two reefs” high production gas well： A case study of small reef group of Changxing formation in eastern Sichuan Basin［J］.Natural Gas Industry， 201，41（2）：10-18.
24	王浩，简高明，柯光明，等.四川盆地元坝气田长兴组生物礁识别与储层精细刻画技术［J］.天然气工业，2019，39（S1）：107-
112	Wang Hao， Jian Gaoming， Ke Guangming， et al. Reef identification and fine reservoir characterization of the Changxing Formation in the Yuanba gas field， Sichuan Basin［J］. Natural Gas Industry，2019，39（S1）：107-112.
25	郭彤楼.元坝气田成藏条件及勘探开发关键技术［J］.石油学报，2019，40（6）：748-760.
	Guo Tonglou.Reservoir‑forming conditions and key technologies of exploration and development in Yuanba gas field［J］. Acta Petrolei Sinica，2019，40（6）：748-760.
26	Liu Chao， Xie Qingbin. Depositional， sedimentary， and diagenetic controls on reservoir quality in carbonate successions： A case study from the carbonate gas reservoirs of the lower Triassic Feixianguan Formation， eastern Sichuan Basin， China［J］. Journal of Petroleum Science and Engineering，2018，163：1141-1150.
27	董庆民，胡忠贵，陈世悦，等. 川东北地区长兴组-飞仙关组碳酸盐岩同位素地球化学响应及其地质意义［J］.石油与天然气地质，2021，42（6）：1307-1320.
	Dong Qingminn， Hu Zhonggui， Chen Shiyue， et al. Isotope geochemical responses and their geological significance of Changxing⁃Feixianguan Formation carbonates，northeastern Sichuan Basin［J］. Oil & Gas Geology， 2021，42（6）：1307-1320.

[1]	Rui FANG, Yuqiang JIANG, Changcheng YANG, Haibo DENG, Chan JIANG, Haitao HONG, Song TANG, Yifan GU, Xun ZHU, Shasha SUN, Guangyin CAI. Occurrence states and mobility of shale oil in different lithologic assemblages in the Jurassic Lianggaoshan Formation， Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(3): 752-769.
[2]	Xiao HE, Maja ZHENG, Yong LIU, Qun ZHAO, Xuewen Shi, Zhenxue Jiang, Wei WU, Ya WU, Shitan NING, Xianglu TANG, Dadong LIU. Characteristics and differential origin of Qiongzhusi Formation shale reservoirs under the “aulacogen-uplift” tectonic setting， Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(2): 420-439.
[3]	Changbo ZHAI, Liangbiao LIN, Donghua YOU, Fengbin LIU, Siyu LIU. Sedimentary microfacies characteristics and organic matter enrichment pattern of the 1^st member of the Middle Permian Maokou Formation， southwestern Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(2): 440-456.
[4]	Heyi ZHANG, Shuai YANG, Xihua ZHANG, Hanlin PENG, Qian LI, Cong CHEN, Zhaolong GAO, Anqing CHEN. Sedimentary microfacies and environmental evolution of the Middle Permian Maokou Formation in the eastern Sichuan Basin： A case study of the Yangjiao section in Wulong District， Chongqing， China [J]. Oil & Gas Geology, 2024, 45(2): 457-470.
[5]	Hui PAN, Yuqiang JIANG, Xun ZHU, Haibo DENG, Linke SONG, Zhanlei WANG, Miao LI, Yadong ZHOU, Linjie FENG, Yongliang YUAN, Meng WANG. Evaluation of geological sweet spots in fluvial tight sandstone gas： A case study of the first submember of the second member of the Jurassic Shaximiao Formation， central Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(2): 471-485.
[6]	Baoshou ZHANG, Benjian ZHANG, Hua WANG, Jianfa CHEN, Kaixuan LIU, Shuang DOU, Xin DAI, Shuangling CHEN. The Jinqiu gas field in the Sichuan Basin： A typical helium-bearing to helium-rich gas field with the Mesozoic sedimentary rocks as helium source rocks [J]. Oil & Gas Geology, 2024, 45(1): 185-199.
[7]	Zhili ZHANG, Yanping QIAO, Shuang DOU, Kunyu LI, Yuan ZHONG, Luya WU, Baoshou ZHANG, Xin Dai, Xin JIN, Bin WANG, Jinmin SONG. Karst paleogeomorphology and reservoir control model of the 2^nd member of Dengying Formation in Penglai gas area， Sichuan Basin， China [J]. Oil & Gas Geology, 2024, 45(1): 200-214.
[8]	Junwei ZHAO, Haihang SUN, Dongwei ZHANG, Heng WANG. Sedimentary evolution and genetic mechanisms of typical marine nearshore sandbars [J]. Oil & Gas Geology, 2024, 45(1): 65-80.
[9]	Guangfu WANG, Fengxia LI, Haibo WANG, Tong ZHOU, Yaxiong ZHANG, Ruyue WANG, Ning LI, Yuxin CHEN, Xiaofei XIONG. Difficulties and countermeasures for fracturing of various shale gas reservoirs in the Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(6): 1378-1392.
[10]	Zongquan HU, Ruyue WANG, Jing LU, Dongjun FENG, Yuejiao LIU, Baojian SHEN, Zhongbao LIU, Guanping WANG, Jianhua HE. Storage characteristic comparison of pores between lacustrine shales and their interbeds and differential evolutionary patterns [J]. Oil & Gas Geology, 2023, 44(6): 1393-1404.
[11]	Dongfeng HU, Zhihong WEI, Ruobing LIU, Xiangfeng WEI, Wei WANG, Qingbo WANG. Discovery of the Qijiang shale gas field in a structurally complex region on the southeastern margin of the Sichuan Basin and its implications [J]. Oil & Gas Geology, 2023, 44(6): 1418-1429.
[12]	Hongyan WANG, Shangwen ZHOU, Qun ZHAO, Zhensheng SHI, Dexun LIU, Pengfei JIAO. Enrichment characteristics， exploration and exploitation progress， and prospects of deep shale gas in the southern Sichuan Basin， China [J]. Oil & Gas Geology, 2023, 44(6): 1430-1441.
[13]	Zhensheng SHI, Shengxian ZHAO, Tianqi ZHOU, Shasha SUN, Yuan YUAN, Chenglin ZHANG, Bo LI, Ling QI. Types and genesis of horizontal bedding of marine gas-bearing shale and its significance for shale gas： A case study of the Wufeng-Longmaxi shale in southern Sichuan Basin， China [J]. Oil & Gas Geology, 2023, 44(6): 1499-1514.
[14]	Ruikang BIAN, Chuanxiang SUN, Haikuan NIE, Zhujiang LIU, Wei DU, Pei LI, Ruyue WANG. Types， characteristics， and exploration targets of deep shale gas reservoirs in the Wufeng-Longmaxi formations， southeastern Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(6): 1515-1529.
[15]	Shuangjian LI, Zhi LI, Lei ZHANG, Yingqiang LI, Xianwu MENG, Haijun WANG. Hydrocarbon accumulation conditions and exploration targets of the Triassic subsalt ultra-deep sequences in the western Sichuan Depression， Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(6): 1555-1567.

Sedimentary architectures of reef-shoal facies at the platform margin during Changxing times of the Late Permian around Kaijiang-Liangping trough in the Sichuan Basin and their differences

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 9

References 27

Related Articles 15

Recommended Articles

Metrics