Lithologic Reservoirs ›› 2013, Vol. 25 ›› Issue (1): 81-87.doi: 10.3969/j.issn.1673-8926.2013.01.016

Previous Articles     Next Articles

Types and characteristics of reefs of Permian Changxing Formation around Kaijiang-Liangping trough, eastern Sichuan Basin

ZHOU Gang1， ZHENG Rongcai2， LUO Ren3， LIU Huayi1， WEN Huaguo2   

  1. 1. Research Institute of Exploration and Development， PetroChina Southwest Oil and Gas Field Company， Chengdu 610041， China； 2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation， Chengdu University of Technology， Chengdu 610059， China； 3. Northeast Sichuan Gas Field， PetroChina
    Southwest Oil and Gas Field Company， Dazhou 635000， China
  • Online:2013-02-20 Published:2013-02-20

PDF (PC)

631

Abstract:

Platform-edge reef flat facies is the most important oil and gas exploration layer of Changxing Formation around Kaijiang-Liangping trough, eastern Sichuan Basin. The lithology of the reservoir is mainly reef flat facies crystal dolomites, and it has the characteristics of broad distribution areas, great thickness and fine physical properties. Through the observation of outcrop, core and thin section, this paper studied the internal structures and development characteristics of platform-edge reefs in the study area. The result shows that the platform-edge reefs have very different sedimentary characteristics in different places near the trough, and could be divided into patch reefs and mound reefs according to the development scales. Because of the different palaeogeomorphology and sea-level change，the patch reefs and mound reefs possess different evolution stages and reservoir characteristics. The patch reefs developed with the characteristics of shorter formation time, thinner reservoir thickness and poor properties, while the mound reefs mainly developed with the characteristics of larger formation time, thicker reservoir thickness and fine properties. Platform-edge reefs reservoir belongs to low porosity and low permeability reservoir. As a kind of the platform edge reefs, the mound reefs reservoir is better than that of patch reefs, and the patch reefs reservoir developed in the second period of Changxing Formation is better than patch reefs reservoir developed in the first period of Changxing Formation.

Key words: coal rock, coalbed methane, mudstone, free gas, adsorption gas, diffusion

［1］ 王一刚，文应初，张帆，等.川东地区上二叠统长兴组生物礁分布规律［J］.天然气工业，1998，18（6）：10-15.
［2］ 郑荣才，胡忠贵，冯青平，等.川东北地区长兴组白云岩储层的成因研究［J］.矿物岩石，2007，27（4）：78-84.
［3］ 洪海涛，王一刚，杨天泉，等.川北地区长兴组沉积相和生物礁气藏分布规律［J］.天然气工业，2008，28（1）：38-41.
［4］ 张延充，杨爱国，梅燕，等.泛开江—梁平海槽及勘探有利相带地震预测［J］.天然气工业，2009，29（10）：28-30.
［5］ 李登华，唐跃，殷积峰，等.川东黄龙场构造上二叠统长兴组生物礁特征与潜伏礁预测［J］.中国地质，2006，33（2）：427-435.
［6］ 周刚，郑荣才，王炯，等.川东—渝北地区长兴组礁、滩相储层预测［J］.岩性油气藏，2009，21（1）：15-21.
［7］ 文华国，郑荣才，党录瑞，等.四川盆地东部五百梯地区长兴组礁、滩相储层特征［J］.岩性油气藏，2010，22（2）：24-29.
［8］ 赵文光，郭彤楼，蔡忠贤，等.川东北地区二叠系长兴组生物礁类型及控制因素［J］.现代地质，2010，24（5）：951-956.
［9］ 李国军，郑荣才，唐玉林，等.川东北地区飞仙关组层序-岩相古地理特征［J］.岩性油气藏，2007，19（4）：64-70.
［10］ 张继庆，李汝宁，官举铭，等.四川盆地及邻区晚二叠世生物礁［M］.成都：四川科学技术出版社，1990.
［11］ 库兹涅佐夫B R.礁地质学及礁的含油气性［M］.李建温，译.北京：石油工业出版社，1978.
［12］ 殷鸿福，童金南，丁梅华，等.扬子区晚二叠世—中三叠世海平面变化［J］．地球科学———中国地质大学学报，1994，19（5）：627-632.
［13］ 陈中强.二叠纪末期的全球淹没事件［J］．岩相古地理，1995，15（3）：34-39.
［14］ 周刚，郑荣才，罗平，等.川东华蓥二叠系—三叠系界线地层地质事件与元素地球化学响应［J］.地球科学———中国地质大学学报，2012，37（增刊）：101-110.
[1] YU Qixiang, LUO Yu, DUAN Tiejun, LI Yong, SONG Zaichao, WEI Qingliang. Reservoir forming conditions and exploration prospect of Jurassic coalbed methane encircling Dongdaohaizi sag，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(6): 45-55.
[2] CUI Chuanzhi, LI Jing, WU Zhongwei. Simulation of microscopic seepage characteristics of CO2 immiscible flooding under the effect of diffusion and adsorption [J]. Lithologic Reservoirs, 2024, 36(6): 181-188.
[3] LI Daoqing, CHEN Yongbo, YANG Dong, LI Xiao, SU Hang, ZHOU Junfeng, QIU Tingcong, SHI Xiaoqian. Intelligent comprehensive prediction technology of coalbed methane “sweet spot”reservoir of Jurassic Xishanyao Formation in Baijiahai uplift，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(6): 23-35.
[4] SHAO Wei, ZHOU Daorong, LI Jianqing, ZHANG Chengcheng, LIU Tao. Key factors and favorable exploration directions for oil and gas enrichment in back margin sag of thrust nappe in Lower Yangtze [J]. Lithologic Reservoirs, 2024, 36(3): 61-71.
[5] BIAN Baoli, LIU Hailei, JIANG Wenlong, WANG Xueyong, DING Xiujian. Discovery and exploration enlightenment of Carboniferous volcanic condensate gas reservoirs in western well Pen-1 sag，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(3): 96-105.
[6] FAN Rui, LIU Hui, YANG Peiguang, SUN Xing, MA Hui, HAO Fei, ZHANG Shanshan. Identification of carbonate dissolution valleys filled with mudstones of Cretaceous in block A,Oman Basin [J]. Lithologic Reservoirs, 2023, 35(6): 72-81.
[7] SIMA Liqiang, MA Jun, LIU Junfeng, YANG Huijie, WANG Liang, ZHAO Ning. Evaluation of pore effectiveness of Quaternary mudstone biogas reservoirs in Sebei area, Qaidam Basin [J]. Lithologic Reservoirs, 2023, 35(2): 1-10.
[8] YU Haibo. Tectonic characteristics and favorable exploration zones of Paleozoic in Dongpu Sag [J]. Lithologic Reservoirs, 2022, 34(6): 72-79.
[9] ZHU Zhiliang, GAO Xiaoming. Main controlling factors and models of Jurassic coalbed methane accumulation in Longdong coalfield [J]. Lithologic Reservoirs, 2022, 34(1): 86-94.
[10] WEN Kang, YAN Jianping, ZHONG Guanghai, JING Cui, TANG Hongming, WANG Min, WANG Jun, HU Qinhong, LI Zhipeng. New method of shale gas evaluation of Wufeng-Longmaxi Formation in Changning area, southern Sichuan Basin [J]. Lithologic Reservoirs, 2022, 34(1): 95-105.
[11] WEI Zhijie, KANG Xiaodong. A fully coupled fluid flow and geomechanics model for enhanced coalbed methane recovery [J]. Lithologic Reservoirs, 2021, 33(5): 181-188.
[12] LI Zhiyuan, YANG Renchao, ZHANG Ji, WANG Yi, YANG Tebo, DONG Liang. Quantitative evaluation of natural gas diffusion loss rate: A case study of Su-X block in Sulige gas field [J]. Lithologic Reservoirs, 2021, 33(4): 76-84.
[13] WANG Changjin, ZHANG Sai, XU Jinglei. Fractal model of effective gas diffusion coefficient based on permeability correction factor [J]. Lithologic Reservoirs, 2021, 33(3): 162-168.
[14] LIU Mingming, WANG Quan, MA Shou, TIAN Zhongzheng, CONG Yan. Well placement optimization of coalbed methane based on hybrid particle swarm optimization algorithm [J]. Lithologic Reservoirs, 2020, 32(6): 164-171.
[15] SU Penghui, XIA Zhaohui, LIU Lingli, DUAN Lijiang, WANG Jianjun, XIAO Wenjie. Main controlling factors of productivity and reasonable development methods of low-rank coalbed methane in block M of Australia [J]. Lithologic Reservoirs, 2019, 31(5): 121-128.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] DUAN Tianxiang,LIU Xiaomei,ZHANG Yajun,XIAO Shuqin. Discussion on geologic modeling with Petrel[J]. Lithologic Reservoirs, 2007, 19(2): 102 -107 .
[2] ZHANG Liqiu. Optimization of upward strata combination of second class oil layer in eastern south Ⅱ area of Daqing Oilfield[J]. Lithologic Reservoirs, 2007, 19(4): 116 -120 .
[3] ZHANG Di，HOU Zhongjian，WANG Yahui，WANG Ying，WANG Chunlian. Sedimentary characteristics of lacustrine carbonate rocks of the first member of Shahejie Formation in Banqiao-Beidagang area[J]. Lithologic Reservoirs, 2008, 20(4): 92 -97 .
[4] FAN Huaicai， LI Xiaoping， DOU Tiancai， WU Xinyuan. Study on stress sensitivity effect on flow dynamic features of gas wells[J]. Lithologic Reservoirs, 2010, 22(4): 130 -134 .
[5] TIAN Shufang，ZHANG Hongwen. Application of life cycle theory to predict increasing trend of proved oil reserves in Liaohe Oilfield[J]. Lithologic Reservoirs, 2010, 22(1): 98 -100 .
[6] YANG Kai，GUO Xiao. Numerical simulation study of three-dimensional two-phase black oil model in fractured low permeability reservoirs[J]. Lithologic Reservoirs, 2009, 21(3): 118 -121 .
[7] ZHAI Zhongxi， QINWeijun， GUO Jinrui. Quantitative relations between oil-gas filling degree and channel seepage flow capacity of the reservoir：Example of Shuanghe Oilfield in Biyang Depression[J]. Lithologic Reservoirs, 2009, 21(4): 92 -95 .
[8] QI Minghui，LU Zhengyuan，YUAN Shuai，LI Xinhua. The analysis on the sources of water body and characteristic of water breakthough at Block 12 in Tahe Oilfield[J]. Lithologic Reservoirs, 2009, 21(4): 115 -119 .
[9] LI Xiangbo,CHEN Qi,lin,LIU Huaqing,WAN Yanrong,MU Jingkui,LIAO Jianbo,WEI Lihua. Three types of sediment gravity flows and their petroliferous features of Yanchang Formation in Ordos Basin[J]. Lithologic Reservoirs, 2010, 22(3): 16 -21 .
[10] LIU Yun，LU Yuan，YI Xiangyi， ZHANG Junliang， ZHANG Jinliang，WANG Zhenxi. Gas hydrate forecasting model and its influencing factors[J]. Lithologic Reservoirs, 2010, 22(3): 124 -127 .
TRENDMD:

Copyright © 2018 Lithologic Reservoirs

Support by Beijing Magtech support@magtech.com.cn