Microsoft Word - 2蒲秀刚.doc

Size: px

Start display at page:

Download "Microsoft Word - 2蒲秀刚.doc"

球水
5 years ago
Views:

1 PETROLEUM EXPLORATION AND DEVELOPMENT Vol.41 No. 文章编号 : (014) DOI: /PED 歧口凹陷沙一下亚段斜坡区重力流沉积与致密油勘探蒲秀刚 1, 周立宏 1, 韩文中 1, 陈长伟 1, 袁选俊, 林常梅柳飒 1, 韩国猛 1, 张伟 1 1, 姜文亚 (1. 中国石油大港油田公司勘探开发研究院 ;. 中国石油勘探开发研究院 ) 1, 基金项目 : 中国石油重大科技专项歧口凹陷大油气田形成条件及富集规律研究 (008E-0601) 摘要 : 在岩心薄片观察, 测录井及样品化验分析的基础上, 对渤海湾盆地黄骅坳陷歧口凹陷沙一下亚段重力流沉积特征及相关的致密油形成条件和特点进行了系统分析研究区重力流沉积主要有砂质碎屑流泥质碎屑流和经典的浊流沉积含泥砾块状砂岩多为砂质碎屑流成因, 泥质碎屑流沉积为含有较多砂质团块的泥岩或粉砂质泥岩, 正递变层理是识别传统浊积岩的重要标志受多物源供给地形坡 - 折不同触发机制湖平面升降等因素共同影响, 多期重力流在斜坡区中低部位主凹区形成多级远岸水下扇扇体, 可识别水下主水道水下分流水道水道侧缘水道间泥及无水道区浊积席状砂 5 种沉积微相多期多级重力流沉积造成湖盆区富泥又富砂, 平面上优质烃源岩致密储集层大面积分布, 纵向上源储紧邻, 形成多套三明治式生储盖组合, 为湖盆深水区致密油的形成奠定了基础勘探实践表明, 砂质碎屑流水下分流水道与无水道区浊积席状砂微相为沙一下亚段重力流沉积型致密油勘探的两个主要沉积类型, 是歧口凹陷斜坡区规模增储的重要领域之一图 11 表 1 参 36 关键词 : 重力流沉积 ; 致密油 ; 沙一段 ; 斜坡区 ; 歧口凹陷 ; 渤海湾盆地中图分类号 :TE1.1 文献标识码 :A Gravity flow sedimentation and tight oil exploration in lower first member of Shahejie Formation in slope area of Qikou Sag, Bohai Bay Basin Pu Xiugang 1, Zhou Lihong 1, Han Wenzhong 1, Chen Changwei 1, Yuan Xuanjun, Lin Changmei 1, Liu Sa 1, Han Guomeng 1, Zhang Wei 1, Jiang Wenya 1 (1. PetroChina Dagang Oilfield Company, Tianjin 30080, China;. PetroChina Research Institute of Petroleum Exploration & Development, Beijing , China) Abstract: Based on observation of cores and thin slices and analysis of drilling, log and test data, the gravity flow deposits characteristics and formation conditions and characteristics of tight oil in lower first member of Shahejie Formation (Es x 1 ) were systematically analyzed in Qikou Sag, Huanghua depression, Bohai Bay Basin. There mainly developed sandy debris flow, muddy debris flow and classical turbidity flow in the study area, and sandstone with boulder-clay is mostly sandy debris flow origin, muddy debris flow deposits are mudstone or silty mudstone with sandy lumps, the normal graded bedding is a reliable sign of classical turbidite. Affected by multi-source supply, slope break, different trigger mechanism and fluctuation of lake level, multi-gravity flows formed multi-level fans in mid-low slope to main sag, which can be divided into five micro-facies including submerged main channel, submerged distributary channel, lateral channel margin, mud between channels and turbidite sheet sand. Multi-level and multi-stage gravity flow sediments provide material foundations for tight oil and gas in the deep mud and sand-rich lake, where wide spread tight reservoirs and high quality source rocks contact closely vertically, forming multiple sets of sandwich-like source-reservoir-seal assemblages. Exploration shows that x the submerged distributary channel and turbidite sheet sand of sandy debris flow are two main exploration facies of gravity flow in Es 1 and important area of scale reserve increase in slope zones of Qikou Sag. Key words: gravity flow sedimentation; tight oil; Shahejie Formation; slope area; Qikou Sag; Bohai Bay Basin [1-1]

2 [13-15] [16-18] 1 50 a t Es x t 1/3 1 - [15,19-4] 70% 350 m/ /35 50 / /8 TOC [15] 图 1 歧口凹陷古近系斜坡带坡折体系发育区示意图

3 140 油气勘探 Vol. 41 No. Es1x 发育于歧口凹陷裂陷期Ⅱ幕该时期构造活动等 [9,6] 其中碎屑流又可分为泥质碎屑流和砂质碎屑再次加强同时叠加了南北向走滑断裂系使得研究流 [7] 重力流沉积的识别应综合各类标志进行分析判区断层异常发育 [5] 随着湖盆的缓慢沉降水体逐步断深湖相泥岩是判断重力流的重要指标之一即使加深湖盆面积逐渐扩大但物源供给较充足湖盆一套砂岩中无典型的沉积构造亦可根据砂岩的围岩 x x 中心 Es1 沉积厚度可达 m 以上纵向上 Es1 岩是深水沉积岩判定其为重力流沉积研究区 Es1x 湖相性组合呈现一定演化规律除歧口凹陷西南缘主要为泥岩发育泥岩中可见黄铁矿鱼化石鱼鳞介形一套湖相碳酸盐岩沉积外其他区域自下而上岩性组虫双壳类动物化石及少量植物茎杆指示深湖环境合为下部滨Ⅰ油层组主要发育生屑灰岩与灰色泥岩同沉积变形构造如火焰构造包卷层理碎屑脉等组合中部板 4 油层组为深灰色褐灰色泥岩夹灰白色冲刷面及岩性接触关系也是判断重力流沉积的重灰褐色云质岩及灰褐色油页岩上部板 3 板油层组要标志岩性为深灰色泥岩夹灰白灰色砂岩砂泥不等厚互层.1.1 砂质碎屑流研究区砂质碎屑流典型岩性为大套暗色泥岩所包在残余地层厚度研究的基础上通过剥蚀量恢复去压实校正及古水深校正结合沉积相构造运动等裹的含泥砾砂岩和块状砂岩见图 3 Es1x 砂质碎屑研究成果恢复了研究区 Es1x 底界面的古地貌见图流沉积具有如下特征 ①块状砂岩底部具剪切带见分析表明歧口凹陷 Es1 沉积期湖盆宽阔统一差异图 3a 3d 其剪切特征可用以指示块体运动说明块沉降明显湖盆斜坡发育凸凹相间格局十分清晰体曾沿滑动面发生滑动作用 ②发育板条状碎屑组构湖盆整体具有西南高东北低的特点西南缘为宽缓或易碎的页岩碎屑见图 3b 3c 页岩还保留有原始的湖湾背景最低点海拔 00 m 东北驴驹河 bh9 水平层理说明这些页岩是被打碎搬运后快速沉积的井一带为凹陷沉降中心最低点海拔小于 m ③块状砂岩层顶部附近漂浮的泥岩碎屑集中存在见 gs40 井一带发育一次凹最低点海拔 550 m 由于湖图 3c 3e 泥砾直径一般约 6 cm 最大可达 1 cm 盆坡降较大深水区发育物源充足从斜坡区到湖部分泥砾具有一定磨圆性说明沉积前经过了一定距盆中心大面积分布重力流沉积离的搬运 ④在砂质碎屑流沉积中泥岩碎屑可能表 x 现出逆粒序特征见图 3c ⑤上部接触面为不规则状与上覆岩层多呈突变接触沉积体具侧向尖灭特征揭示了原始沉积体的整体冻结过程 ⑥普通薄片下可见浅湖滩坝相的鲕粒及碳酸盐碎屑鲕粒含量一般小于 10% 多为表鲕鲕粒同心层不完全或厚薄不均匀偶见多个鲕粒连在一起表明碎屑岩中的鲕粒为外地事件性搬运而来见图 3g 3h ⑦常见变形负荷泄水火焰构造等及粒序层理砂纹交错层理包卷层理等对于块状砂岩沉积类型的判断主要依据上下围岩特征沉积环境湖盆位置等信息并结合邻井对比进行综合分析上下围岩若具有上述砂质碎屑流沉积特征或为深湖相泥岩或处于凹陷中心斜坡中低部位等可认为该块状砂岩为砂质碎屑流沉积见图 3i 图歧口凹陷 Es1x 底界古地貌图重力流沉积特征砂质碎屑流沉积的块状砂岩粒度分析表明砂质碎屑流具有以悬浮搬运为主分选较差的特点粒度累计概率曲线具有种类型类型Ⅰ 曲线呈圆弧形各点逐渐过渡难以分出明显总体除悬浮和跳跃总.1 重力流沉积成因分类根据重力流的流动特征和支撑机制通常将重力流分为碎屑流或泥石流颗粒流液化流和浊流体外两者之间出现一过渡带过渡带约占 50% 悬浮总体占约 30% 50% 跳跃总体小于 0% 见图 4a 悬浮总体分选差过渡带及跳跃总体分选中等斜角

014 年 4 月蒲秀刚等歧口凹陷沙一下亚段斜坡区重力流沉积与致密油勘探 141 (a) gs46 井 3 390.70 m, 冲刷面及变形层理 (b) gs7 井 3 951.90 m 页岩碎块 (c) gs7 井 4 050.70 m 泥岩碎片显示逆粒序 (d) b57 井 597.90 m 砂泥间剪切带 (e) b57 井 599.45 m 泥砾 (f) gs46 井 3 187.

4 014 年 4 月蒲秀刚等歧口凹陷沙一下亚段斜坡区重力流沉积与致密油勘探 141 (a) gs46 井 m, 冲刷面及变形层理 (b) gs7 井 m 页岩碎块 (c) gs7 井 m 泥岩碎片显示逆粒序 (d) b57 井 m 砂泥间剪切带 (e) b57 井 m 泥砾 (f) gs46 井 m 包卷层理及粒序层理 (g) gs39 井 m 两颗表鲕经搬运未分离 (h) bs16 1 井 m 表鲕同心环层不均匀残缺 (i) gs46 井第 3 7 次取心处为块状砂岩其他岩性多见砂质碎屑流沉积特征图3 歧口凹陷沙一下砂质碎屑流沉积特征 C 累计质量百分比为 1%的颗粒直径 μm M 粒径中值 μm 图4 歧口凹陷沙一下砂质碎屑流沉积块状砂岩累计概率曲线及 C-M 分析图约 50 类型Ⅱ 曲线为 3 段式但跳跃总体小于 10% 塑性流体流动泥质含量较高一般大于 30% 典型悬浮总体占 35% 50% 过渡带占 50% 跳跃总体倾岩心照片可见泥岩粉砂质泥岩或泥质粉砂岩中含有角大分选性较好见图 4b 这两类型曲线均反映了较多砂质团块当砂质团块主要为中细砂岩时由于随着沉积水体搬运能力的下降高密度流向牵引流转其所含的泥质较少在流动过程中表现为刚性流动化的过程在 C-M 图上 C 值一般为 μm 砂质团块棱角分明当砂质团块以泥质粉砂岩为主时平均为 38. μm M 值为 μm 平均为其含有较多的泥质在流动过程中往往具有一定塑性 μm 样品点群基本平行于 C=M 基线分布以悬浮载荷砂质团块多呈不规则状或具有一定圆度见图 5a 5b 为主反映重力流递变悬浮沉积的特征见图 4c 4d.1.3 浊流浊流是指具有牛顿流变学特征沉积物湍流悬浮.1. 泥质碎屑流泥质碎屑流是一种混杂有砂质颗粒或砂质团块的的重力流湍流是主要的支撑机制 Bouma 所建立的

14 Vol. 41 No. (a) gs7 3 971.10 m (b) gs7 3 969.00 m(c) b57 593.80 m (d) gs47 4 164.

5 14 Vol. 41 No. (a) gs m (b) gs m(c) b m (d) gs m 图 5 歧口凹陷沙一下泥质碎屑流 (a,b) 及浊流 (c,d) 沉积岩心照片 [9,11] A Es x 1 B C D E Es x 1 CDE DE 3 5c 5d..1 沉积微相特征. 重力流沉积体系及发育模式 6 m Es x 1 SP GR 6a 6b / [1,4,7,9] [9] [8] ~8 m [6] SP GR 6a 6b 3 1~4 m SP GR 6c

6 MCh BCh LCh TuS ICh 图 6 重力流沉积微相测井响应特征 CE DE 3 m SP GR 6d.. 沉积相展布 7..3 远岸水下扇发育模式 5.5 m 1.5 Es x 1 m 0.3 m m 10%~30% km [9] 1

7 144 Vol. 41 No. x 图 7 歧口凹陷 Es 1 沉积体系与有效烃源岩 (TOC 值大于 0.5% R o 值大于 0.5%) 叠合图 8a 8b [30-3] 3.1 大面积分布的致密储集层 3 [3] μm 1 10 μm 4 t/d t/d 9%~1% Es x 1 1% 8c 3 Es x 1 1% 1 10 μm 1 10 μm

014 年 4 月蒲秀刚等歧口凹陷沙一下亚段斜坡区重力流沉积与致密油勘探 145 图8 重力流沉积模拟 a b 及远岸水下扇发育模式图 c Es1x 重力流储集层埋深一般大于 3 000 m 整体具内扇中扇无水道沉积区受以往勘探寻找常规储集有中低孔特低超低渗特征见图 9 远岸水下层主水道及分流水道思路的影响分析样品多集中扇主水道物性较好孔隙度为 11.7% 9.

% 18.0% 平均为 9.7% 渗透率为 0.03 00 m 歧口主凹区砂体厚度为 80 160 m 纵向上不平均为 14.1% 渗透率 0.07 70.00 10 均为 0.94 10 7.50 10 μm 平均为 0.

8 014 年 4 月蒲秀刚等歧口凹陷沙一下亚段斜坡区重力流沉积与致密油勘探 145 图8 重力流沉积模拟 a b 及远岸水下扇发育模式图 c Es1x 重力流储集层埋深一般大于 m 整体具内扇中扇无水道沉积区受以往勘探寻找常规储集有中低孔特低超低渗特征见图 9 远岸水下层主水道及分流水道思路的影响分析样品多集中扇主水道物性较好孔隙度为 11.7% 9.5% 平均为于常规储集层但以远岸水下扇外扇亚相为主的斜坡 μm 平均为区低部位及深湖区以致密储集层为主其波及面积可 μm 多为常规储集层分流水道砂体为中达 900 km 纵向上发育 5 套含油层系自上而下分别 18.7% 渗透率为低孔低特低渗储集层孔隙度为 8.5%.8% 为板上板下板 3 板 4 和滨Ⅰ油层组砂体累计 μm 平厚度一般为 m 板桥斜坡远岸水下扇砂体厚度 μm 分流水道侧缘砂体孔隙度最大一般为 m 其次为歧北次凹为 10 为 1.% 18.0% 平均为 9.7% 渗透率为 m 歧口主凹区砂体厚度为 m 纵向上不平均为 14.1% 渗透率均为 μm 平均为 μm 其渗透性明显同地区或沉积微相致密砂岩所占比例不同一般大于低于水道砂体外扇至半深湖深湖区无水道浊积席 70% 主凹区主要为致密储集层与国内外致密油区相状砂沉积孔隙度为 1.0% 14.0% 平均为 7.5% 渗比该区砂岩厚度较大有利于规模性致密油气藏的透率为 μm 平均为 μm 形成见表 1 渗透性最差 3. 广覆式分布成熟度适中的腐泥型优质生油岩 Es 1 x 烃源岩有暗色泥岩和油页岩两种类型烃源岩厚度大分布广有机质丰度高演化程度适中生烃强度大油气资源量大为该区重要优质生油岩暗色泥岩有效厚度一般为 m 主凹区的厚度大于 700 m 分布面积可达 3 00 km 见图 9 油页岩有效厚度一般为 m 主要分布在歧口凹陷西南缘湖盆缓坡区面积为 km 烃源岩 TOC 值一般为 0.8% 6.0% 其中油页岩 TOC 值一般为.0% 6.0% TOC 值大于 1.0%的好烃源岩一般占 70% 以上厚度为 m 分布面积达 1 5 km TOC 图9 歧口凹陷沙一下远岸水下扇不同沉积微相物性分布图 978 个样品点/35 口井值大于.0%的优质烃源岩 [33-35]其 TOC 值可达 10% 5% 厚度一般为 m 分布面积达 1 00 km 歧口凹陷 Es1x 重力流沉积主要发育常规和致密两有机质类型以Ⅰ Ⅱ 1 为主具备较强的生油能力热类储集层常规储集层主要分布在远岸水下扇内扇演化程度适中 Ro 值一般为 0.6% 1.8% 以大量生油中扇亚相主水道及分流水道中而水道侧缘浊积席为主凹陷中心 Ro 值大于.0% 以生气为主烃源岩状砂及部分分流水道致密砂体主要分布在外扇亚相及生油强度可达 t/km 油气资源评价

9 146 Vol. 41 No. 表 1 歧口凹陷 Es 1 x 与国内外典型致密油特征对比 / 10 4 km /m TOC/% R o /% ~ ~ ~ ~ 600 0~110 / m / %.0~ ~1.8 80~80 1~1.0~ ~35 3.0~ ~1.5 40~ ~ ~ ~1.1 0~80 ~1 / / 10 μm g cm 0.0~ ~ 1.00 / 10 8 t 0.73~ ~ ~ ~00 3~10 < ~0.9 10~60 0.~ ~ ~ ~ ~1.7 80~ 0.60~ 19.0~ 8.0~ ~ ~.0 5~30 ~ ~ ~ ~.0~ ~1. 0.6~ ~ 5~8 < ~ ~ ~ 0.3~ ~.5 0.5~ ~ 5~10 < ~ ~ ~ ~ 0.5~ ~ ~ ~ 10~100 3~ ~ ~ ~ ~1.0 30~60 1.0~ ~0.9 30~00 4~10 < ~ ~ ~1.5 Bakken 7.0 EagleFord 4.0 5~1 10.0~ ~0.9 5~55 5~ ~ ~ ~ ~ ~ ~ ~60 3.0~ ~1.3 30~90 ~1 < ~ ~1.80 Es x t m 3 Es x 1 100~700 nm 45 nm [36] 致密油特征 3.3 大范围分布的致密储集层与生油岩共生 Es x 上下图 10 滨海斜坡板板油层组 gs33 井 bh8 井砂体剖面图

10 图 11 滨海斜坡板板 4 油层组致密油常规油藏剖面图 1.9% μm 0 t/d 1.10~ bs16 1 bs1601h 3 8 bs μm 10%) bs1601h 500 t/d ~0.94 g/cm g/cm g/cm mpa s.5~ 6.5 mpa s 5Es x m % 617 m 6 4 mm 37.7 t m d μm 60% 6 7 [36] Es x 勘探实践 μm 9% gs ~4 183 m

11 148 Vol. 41 No. Song Xiaoyong. A review of gravity flow deposits[j]. Special Oil and Gas Reservoirs, 010, 17(6): 6-1. [11],,,. [J]. 4, 011, 6(): Li Yun, Zheng Rongcai, Zhu Guojin, et al. Reviews on sediment Es x 1 gravity flow[j]. Advance in Earth Science, 011, 6(): [1] Shanmuganm G. [J]., 013, 40(3): Shanmugam G. New perspectives on deep-water sandstones: Implications[J]. Petroleum Exploration and Development, 013, 40(3): [13],,,. [J]., 009, 7(6): Wang Ying, Wang Xiaozhou, Wang Yingmin, et al. Depositional model of gravity flow of slope in large down warped lake basins[j]. Acta Sedimentologica Sinica, 009, 7(6): [14],,,. [J]., 003, 4(3): Wang Yingmin, Jin Wudi, Liu Shuhui, et al. Genetic types, distribution and exploration significance of multistage slope breaks in rift lacustrine basin[j]. Oil & Gas Geology, 003, 4(3): [15],,,. [J]., 011, 33(4): 参考文献 : Zhou Lihong, Pu Xiugang, Zhou Jiansheng, et al. Sand-gathering and [1] Normark W R. Growth patterns of deep-sea fans[j]. AAPG Bulletin, 1970, 54: reservoir-controlling mechanisms of Paleogene slope-break system in Qikou Sag, Huanghua Depression, Bohai Bay Basin[J]. Petroleum [] Mutti E, Ricci L F. Turbidite of the northern Apennines: Introduction to facies analysis[j]. International Geology Review, 197, 0(): Geology & Experiment, 011, 33(4): [16],,,. [J]., 007, 14(6): [3] Walker R G. Deep water sandstone facies and ancient submarine fans: Models for exploration for stratigraphic traps[j]. AAPG Bulletin, 1978, 6(5): Huang Chuanyan, Wang Hua, Wang Jiahao, et al. Depositional character and model of fault-controlling gravity flow in Banqiao Depression[J]. Petroleum Geology and Recovery Efficiency, 007, [4] Shanmugam G, Bloch R B, Damuth J E, et al. Basin-floor fans in the North Sea: Sequence stratigraphic models vs. sedimentary facies: Reply[J]. AAPG Bulletin, 1997, 81: (6): [17],,,. : [J]., 009, 7(6): [5] Shanmugam G. Ten turbidite myths[j]. Earth-Science Reviews, 00, 58: Zou Caineng, Zhao Zhengzhang, Yang Hua, et al. Genetic [6] Lawrence A A, William D M, Peter J T. Special issue introduction: mechanism and distribution of sandy debris flows in terrestrial Sediment gravity flows: Recent insights into their dynamic and lacustrine basin[j]. Acta Sedimentologica Sinica, 009, 7(6): stratified/composite nature[j]. Marine and Petroleum Geology, 009, (10): [18],,,. [7] Khripounoff P C A, Bue N L B. Different types of sediment gravity : [J]., 01, 19(1): flows detected in the Var submarine canyon(northwestern Mediterranean Sea)[J]. Progress in Oceanography, 01, 106: Xian Benzhong, Wan Jinfeng, Jiang Zaixing, et al. Sedimentary characteristics and model of gravity flow deposition in the depressed [8] Talling P J, Charles K P, David J W P. How are subaqueous sediment density flows triggered, what is their internal structure and how does it evolve? Direct observations from monitoring of active flows[j]. Earth Science Reviews, 013, 15: belt of rift lacustrine basin: A case study from Dongying formation in Nanpu Depression[J]. Earth Science Frontiers, 01, 19(1): [19],,,. [J]., 011, 33(4): 1-6. [9]. [M]. :, Editorial Committee of Petroleum Geology, China Petroleum Society. Dong Yanlei, Zhu Xiaomin, Li Yang, et al. Research on Es 1 sedimentary system in Huanghua Depression[J]. Journal of Oil and Gas Technology, 011, 33(4): 1-6. Abroad research of turbidite rock and fan delta[m]. Beijing: Petroleum Industry Press, [10]. [J]., 010, 17(6): 6-1. [0] 鹍,,,. [J]., 005, 7(): Song Kun, Wu Shenghe, Zhu Wenchun, et al. Reservoir quality of the

12 lower part of Member 1 of Shahejie Formation of Paleogene in Es x 1 of the Palaeogene in Qikou Depression[R]. Jingzhou: Yangtze Tangjiahe Oilfield, Huanghua Depression[J]. Journal of University, 011. Palaeogeography, 005, 7(): [1],,,. [J]., 00, 9(1): Hu Yaojun, Chen Zhaonian, Liu Weixing, et al. Analyses of sedimentary features of gravity flow channel sand body in seabeach of Dagang Oilfield[J]. Fault-Block Oil & Gas Field, 00, 9(1): [],,,. [J]., 011, 38(): Pu Xiugang, Zhou Lihong, Xiao Dunqing, et al. Lacustrine carbonates in the southwest margin of Qikou sag, Huanghua Depression, Bohai Bay Basin[J]. Petroleum Exploration and [30],,,. [J]., 007, 8(): Pu Xiugang, Wu Yongping, Zhou Jiansheng, et al. Characteristics and exploration potential of lithologic-stratigraphic hydrocarbon reservoirs in Qikou Sag of Dagang Oilfield[J]. Acta Petrolei Sinica, 007, 8(): [31],,,. [J]., 01, 14(7): Pang Zhenglian, Zou Caineng, Tao Shizhen, et al. Formation distribution and resource evaluation of tight oil in China[J]. Engineering Science, 01, 14(7): [3],,,. [M]. : Development, 011, 38(): , 011. [3],,,. Zou Caineng, Tao Shizhen, Hou Lianhua, et al. Unconventional oil [J]., 01, : and gas geology[m]. Beijing: Geological Publishing House, 011. Wang Zhensheng, Zhou Yuwen, Liu Yanfen, et al. Elementary [33],,. : analysis on hydrocarbon accumulation of lacustrine carbonate rocks [J]. :, in southwest margin of Qikou Sag[J]. China Petroleum Exploration, 01, : [4],,,. [J]., 01, 33(3): Jia Chengzao, Zou Caineng, Li Jianzhong, et al. Assessment criteria, main types, basic features and resource prospects of the tight oil in China[J]. Acta Petrolei Sinica, 01, 33(3): [5],,,. [J]., 011, (3): Zhou Lihong, Lu Yi, Xiao Dunqing, et al. Basinal texture structure of Qikou Sag in Bohai Bay Basin and its evolution[j]. Natural Gas Geoscience, 011, (3): [6]. [M]. :, 01, 37(3): Lu Shuangfang, Ma Yanling, Cao Ruicheng, et al. Evaluation criteria of high-quality source rocks and its application: Taking the Wuerxun Sag in Hailaer Basin as an example[j]. Earth Science: Journal of China University of Geosciences, 01, 37(3): [34],,,. [J]., 008, 15(): Hou Dujie, Zhang Shanwen, Xiao Jianxin, et al. The excellent source rocks and accumulation of stratigraphic and lithologic traps in the Jiyang Depression, Bohai Bay Basin[J]. Earth Science Frontiers, 008, 15(): [35],,,. [J]., 013, 40(4): Li Yanjun, Feng Yuanyuan, Liu Huan, et al. Geological Yu Xinghe. Clastic reservoir sedimentology[m]. Beijing: Petroleum characteristics and resource potential of lacustrine shale gas in the Industry Press, 008. Sichuan Basin, SW China[J]. Petroleum Exploration and [7] Shanmugam G. 50 years of the turbidite paradigm( s): Deep-water processes and facies models: A critical perspective[j]. Development, 013, 40(4): [36],,,. Marine and Petroleum Geology, 000, 17(): [J]., 013, 40(): [8],,,. Yao Jingli, Deng Xiuqin, Zhao Yande, et al. Characteristics of tight [J]., 008, 30(6): oil in Triassic Yanchang Formation, Ordos Basin[J]. Petroleum Exploration and Development, 013, 40(): Liu Zhongbao, Zhang Chunsheng, Gong Wenping, et al. A study on 第一作者简介 : 蒲秀刚 (1968-), 男, 四川阆中人, 博士, 中国石油大 sedimentary simulation of sandy clastic current formed by sliding of traction current with sandy load along steep slope[j]. Journal of Oil and Gas Technology, 008, 30(6): 港油田公司高级工程师, 主要从事油气勘探基础地质研究与管理工作地址 : 天津市滨海新区, 大港油田公司勘探开发研究院实验中心 709 室, 邮政编码 : puxgang@petrochina.com.cn [9],. [R]. :, 011. 收稿日期 : 修回日期 : He Youbin, Pan Renfang. Sedimentary simulation experiment of the 黄昌武刘方方

( 1) ; 6 5 [ 3 ] S1 S2 1 Fig. 1 Seismic sequence prof ile framework of Wuliyasitai Sag S1 () ( 2) S2 ( ) Ο 2 S1 Fig. 2 Sedimentary fa

( 1) ; 6 5 [ 3 ] S1 S2 1 Fig. 1 Seismic sequence prof ile framework of Wuliyasitai Sag S1 () ( 2) S2 ( ) Ο 2 S1 Fig. 2 Sedimentary fa 27 3 2006 5 ACTA PETROL EI SIN ICA Vol. 27 No. 3 May 2006 : 0253Ο2697 (2006) 03Ο0027Ο05 1 2 2 2 (11 610059 ; 21 062552) : 2 ; : ; ;; ;; : TE1111 3 : A Forming pattern and distribution features of hydrocarbon