Reservoir Controlling Factors and Development Model of Middle Permian Lucaogou Formation in Chaiwopu Sag

doi:10.3969/j.issn.1006-6535.2021.06.004

Abstract

Abstract: In order to work out the distribution pattern of favorable reservoirs in Middle Permian Lucaogou Formation in Chaiwopu Sag, the reservoir characteristics and controlling factors of Lucaogou Formation were systematically analyzed and the reservoir development pattern was established according to the test data such as core, rock slice, X-ray diffraction and scanning electron microscope, in combination with the characteristics of tectonic evolution and sedimentary system distribution. The study results showed that the reservoir space of Lucaogou Formation was dominated by dissolved pores and micro-fractures, and was mainly composed of reservoirs with ultra-low porosity and ultra-low permeability. In the nearshore subaqueous fan adjacent to Yilinheibiergen Mountain, the primary porosity of glutenite at the fan center was low and the reservoir was denser due to vertical and lateral compaction in the early diagenetic stage. The glutenite at the margin of the nearshore subaqueous fan was mainly subjected to the effect of vertical compression while the effect of lateral compaction was weak in the early diagenetic stage. The strong dissolution effect of acidic fluids released from source rocks in the late diagenetic stage made more inter-granular and intra-granular dissolved pores, form the most favorable sedimentary facies belt for hydrocarbon accumulation. The sandbody of turbidite fan was sandwiched in the deeper or deep lacustrine thick source rocks, developed with dissolved pores, forming a "sweet spot" reservoir for oil and gas exploration. The study results provide an important geological basis for the deployment of prospecting wells in Chaiwopu Sag.

Key words: reservoir characteristics, reservoir controlling factors, reservoir evolution model, Lucaogou Formation, Chaiwopu Sag

CLC Number:

TE122

Zhang Guanlong, Wang Yue, Zhang Kuihua, Yu Hongzhou, Xiao Xiongfei. Reservoir Controlling Factors and Development Model of Middle Permian Lucaogou Formation in Chaiwopu Sag[J]. Special Oil & Gas Reservoirs, 2021, 28(6): 27-35.

References

[1] 霍进,支东明,郑孟林,等.准噶尔盆地吉木萨尔凹陷芦草沟组页岩油藏特征与形成主控因素[J].石油实验地质,2020,42(4):506-512.
HUO Jin,ZHI Dongming,ZHENG Menglin,et al.Characteristics and main controls of shale oil reservoirs in Lucaogou Formation,Jimsar Sag,Junggar Basin[J].Petroleum Geology & Experiment,2020,42(4):506-512.
[2] 王剑,周路,刘金,等.准噶尔盆地吉木萨尔凹陷二叠系芦草沟组酸碱交替成岩作用特征及对页岩储集层的影响[J].石油勘探与开发,2020,47(5):1-15.
WANG Jian,ZHOU Lu,LIU Jin,et al.Acid-base alternation diagenesis and its influence on shale reservoirs in the Permian Lucaogou Formation, Jimusar Sag, Junggar Basin, NW China[J].Petroleum Exploration and Development,2020,47(5):1-15.
[3] 罗劲,童小兰.柴窝堡凹陷柴窝堡构造达1井钻探效果及其勘探意义[J].新疆石油学院学报,2004,16(3):9-12,85.
LUO Jin,TONG Xiaolan.The well drilling results and exploration significance of well DA1 on Chaiwopu Structure in Chaiwopu Depression of southern margin of Junggar Basin[J].Journal of Xinjiang Petroleum Institute,2004,16(3):9-12,85.
[4] 旷理雄,郭建华,王英明,等.柴窝堡凹陷达坂城次凹油气成藏条件及勘探方向[J].天然气地球科学,2005,16(1):20-24.
KUANG Lixiong,GUO Jianhua,WANG Yingming,et al.Studies on the oil & gas reservoir formation conditions and exploration bearing in Daban Town Sub-depression of Chaiwopu Depression[J].Natural Gas Geoscience,2005,16(1): 20-24.
[5] 陈健,庄新国,吴超,等.准噶尔盆地南缘芦草沟组页岩地球化学特征及沉积环境分析——以准页3井为例[J].中国煤炭地质,2017,29(8):32-38.
CHEN Jian,ZHUANG Xinguo,WU Chao,et al.Geochemical features and sedimentary environment analysis of Lucaogou Formation shale in southern Junggar Basin:a case study of Well ZY3[J].Coal Geology of China,2017,29(8):32-38.
[6] 彭雪峰,汪立今,姜丽萍.准噶尔盆地东南缘芦草沟组油页岩元素地球化学特征及沉积环境指示意义[J].矿物岩石地球化学通报,2012,31(2):121-127,151.
PENG Xuefeng,WANG Lijin,JIANG Liping.Geochemical characteristics of the Lucaogou Formation oil shale in the southeastern margin of the Junggar Basin and its environmental implications[J].Bulletin of Mineralogy,Petrology and Geochemistry, 2012, 31(2): 121-127,151.
[7] 张奎华,曹忠祥,王越,等.博格达地区中二叠统芦草沟组沉积相及沉积演化[J].油气地质与采收率,2020,27(4):1-12.
ZHANG Kuihua,CAO Zhongxiang,WANG Yue,et al.Sedimentary facies and evolution of Middle Permian Lucaogou Formation in Bogda Area[J].Petroleum Geology and Recovery Efficiency,2020,27(4):1-12.
[8] 李红.准噶尔盆地柴窝堡凹陷油气地质条件综合研究[D].西安:西北大学,2006.
LI Hong.Comprehensive study on petroleum geological conditions in Chaiwopu Sag,Junggar Basin[D].Xi′an:Northwest University,2006.
[9] 张逊,庄新国,涂其军,等.柴窝堡凹陷二叠系芦草沟组页岩气烃源岩评价[J].新疆地质,2016,34(2):280-285.
ZHANG Xun,ZHUANG Xinguo,TU Qijun,et al.Source rock evaluation of shale gas of Lucaogou Formation in Chaiwopu Sag,southern of Junggar Basin[J].Xinjiang Geology,2016,34(2):280-285.
[10] 范静涛.柴窝堡凹陷二叠系泥、页岩有机地球化学特征及页岩气成藏条件研究[D].西安:长安大学,2018.
FAN Jingtao.Study on organic geochemical characteristics of Permian argillaceous shale and formation conditions of shale gas in Chaiwopu Sag[D].Xi′an:Chang′an University,2018.
[11] 林会喜,王圣柱,杨艳艳,等.博格达地区中二叠统芦草沟组页岩油储集特征[J].断块油气田,2020,27(4):418-423.
LIN Huixi,WANG Shengzhu,YANG Yanyan,et al.Shale oil reservoir characteristics of Middle Permian Lucaogou Formation in Bogda Area[J].Fault-Block Oil & Gas Field,2020,27(4):418-423.
[12] 林鹏.准噶尔盆地南缘柴窝堡凹陷二叠系沉积体系与储层特征[D].北京:中国地质大学(北京),2013.
LIN Peng.Permian sedimentary system and reservoir characteristics of Chaiwopu Sag,Southern Margin of Junggar Basin[D].Beijing:China University of Geosciences,Beijing,2013.
[13] 张慧,李琦,林鹏,等.柴窝堡凹陷红雁池及芦草沟组储层特征及控制因素[J].现代矿业,2013,29(7):52-55.
ZHANG Hui,LI Qi,LIN Peng,et al.Reservoir characteristics and controlling factors of Hongyanchi and Lucaogou Formations, Chaiwopu Sag[J].Modern Mining,2013,29(7): 52-55.
[14] 于进,张奎华,林春明,等.准噶尔盆地柴窝堡凹陷二叠系储层成岩作用[J].岩性油气藏,2016,28(3):95-104.
YU Jin,ZHANG Kuihua,LIN Chunming,et al.Diagenesis characteristics of Permian reservoir in Chaiwopu Depression,Junggar Basin[J].Lithologic Reservoirs,2016,28(3): 95-104.
[15] 孙国智,柳益群.新疆博格达山隆升时间初步分析[J].沉积学报,2009,27(3):487-493.
SUN Guozhi,LIU Yiqun.The preliminary analysis of the uplift time of Bogda Mountain,Xinjiang,northwest China[J].Acta Sedimentologica Sinica,2009,27(3): 487-493.
[16] WANG J,CAO Y C,WANG X T,et al.Sedimentological constraints on the initial uplift of the west Bogda Mountains in Mid-Permian[J].Scientific Reports,2018,8(1):1453.
[17] 周进松,童小兰,冯永宏.柴窝堡背斜储层构造裂缝发育特征及控制因素[J].石油学报,2006,27(3):53-56.
ZHOU Jinsong,TONG Xiaolan,FENG Yonghong.Development characteristics and control factors for reservoir fracture in Chaiwopu anticline of Junggar Basin[J].Acta Petrolei Sinica,2006,27(3):53-56.
[18] 饶松,朱亚珂,胡迪,等.准噶尔盆地热史恢复及其对早—中二叠世时期盆地构造属性的约束[J].地质学报,2018,92(6):1176-1195.
RAO Song,ZHU Yake,HU Di,et al.The thermal history of Junggar Basin:constraints on the tectonic attribute of the Early-Middle Permian Basin[J].Acta Geologica Sinica,2018,92(6):1176-1195.
[19] 方世虎,贾承造,郭召杰,等.准噶尔盆地属性的再认识及其构造意义[J].地学前缘, 2006,13(3):108-121.
FANG Shihu,JIA Chengzao,GUO Zhaojie,et al.New view on the Permian evolution of the Junggar Basin and its implications for tectonic evolution[J].Earth Science Frontiers,2006,13(3):108-121.
[20] 王越,张奎华,林会喜,等.博格达山周缘芦草沟组混合沉积控制因素及模式[J].新疆石油地质,2017,38(6):686-692.
WANG Yue,ZHANG Kuihua,LIN Huixi,et al.Controlling factors and model of mixed deposits of Lucaogou Formation on the periphery of Bogda Mountain[J].Xinjiang Petroleum Geology,2017,38(6):686-692.
[21] 伍劲, 刘占国, 朱超, 等. 库车坳陷依奇克里克地区中—下侏罗统深层砂岩储层特征及其物性主控因素[J]. 中国石油勘探, 2020, 25(6): 58-67.
WU Jin, LIU Zhanguo, ZHU Chao, et al. Characteristics of deep tight sandstone reservoirs of Middle-Lower Jurassic and the main controlling factors in the Yiqikelike Area, Kuqa Depression[J]. China Petroleum Exploration, 2020, 25(6): 58-67.
[22] 马聪, 王剑, 潘晓慧,等.准噶尔盆地吉木萨尔凹陷芦草沟组页岩油储层方沸石成因与甜点意义[J].石油实验地质,2020,42(4):596-603.
MA Cong, WANG Jian, PAN Xiaohui,et al.Origin and significance of “sweet spots” of analcites in shale oil reservoirs in Permian Lucaogou Formation, Jimsar Sag, Junggar Basin[J].Petroleum Geology & Experiment,2020,42(4):596-603.
[23] 王金娜,王德海,李宗宇,等. 巴什托油气田石炭系巴楚组碳酸盐岩储层特征及控制因素[J]. 东北石油大学学报,2019,43(1):75-86.
WANG Jinna,WANG Dehai,LI Zongyu,et al. Characteristics and controlling factors of carbonate reservoir of Carboniferous Bachu Formation in Bashituo Oilfield[J]. Journal of Northeast Petroleum University,2019,43(1):75-86.
[24] 费李莹,王仕莉,吴涛,等.坡折带对砂质碎屑流沉积的控制作用——以准噶尔盆地盆1井西凹陷及周缘侏罗系三工河组为例[J].油气地质与采收率,2020,27(2):26-34.
FEI Liying,WANG Shili,WU Tao,et al.Control of slope break zone on sandy debris flow deposition:a case study of Jurassic Sangonghe Formation in west sag of Well Pen-1 and its periphery in Junggar Basin[J].Petroleum Geology and Recovery Efficiency,2020,27(2):26-34.
[25] 厚东琳.白云石化对储层发育的控制作用——以普光、元坝气田飞仙关组为例[J].断块油气田,2019,26(4):449-452.
HOU Donglin.Control effect of dolomitization on reservoir development: taking Feixianguan Formation in Puguang and Yanba gas fields for example[J].Fault-Block Oil & Gas Field,2019,26(4):449-452.
[26] 金燕林,王金柱.塔河油田T738井区奥陶系碳酸盐岩岩溶发育特征及储层控制因素分析[J].石油地质与工程,2020,34(4):7-11.
JIN Yanlin, WANG Jinzhu.Karst development characteristics and reservoir controlling factors of Ordovician carbonate rocks in T738 well area of Tahe Oilfield[J].Petroleum Geology & Engineering, 2020, 34(4):7-11.