准噶尔盆地莫南斜坡侏罗系西山窑组油气成藏条件及富集主控因素

doi:10.12108/yxyqc.20250304

岩性油气藏 ›› 2025, Vol. 37 ›› Issue (3): 33–46.doi: 10.12108/yxyqc.20250304

• 地质勘探 • 上一篇

准噶尔盆地莫南斜坡侏罗系西山窑组油气成藏条件及富集主控因素

尹照普, 朱峰, 周志尧, 王丽丽, 刘晓晔, 娜孜伊曼, 汪钰婷, 黄大瑞

中国石油东方地球物理公司研究院乌鲁木齐分院, 乌鲁木齐 830000

收稿日期:2025-01-06 修回日期:2025-02-25 发布日期:2025-05-10
第一作者:尹照普（1982—），男，硕士，高级工程师，主要从事石油地质和油气勘探开发方面的研究工作。地址：（830000）乌鲁木齐市新市区迎宾北一路27号。Email：yinzhaopu02@cnpc.com.cn。
通信作者: 黄大瑞（1980—），男，硕士，工程师，主要从事构造解释和油气勘探方面的研究工作。Email：653524240@qq.com。
基金资助:
中国石油集团油气和新能源分公司项目“风险勘探领域和目标研究、工程技术攻关及现场试验-新区新领域综合研究”（编号：2023YQX10111）与东方地球物理勘探有限责任公司“国内中小盆地勘探潜力前瞻性研究”（编号：03-03-2024）联合资助。

Main controlling factors of hydrocarbon accumulation and enrichment of Jurissic Xishanyao Formation in Monan Slope，Junggar Basin

YIN Zhaopu, ZHU Feng, ZHOU Zhiyao, WANG Lili, LIU Xiaoye, Nazyman, WANG Yuting, HUANG Darui

Urumqi Branch, Geophysical Research Institute, BGP, CNPC, Urumqi 830000, China

Received:2025-01-06 Revised:2025-02-25 Published:2025-05-10

摘要/Abstract

摘要： 以钻井、测井及二维、三维地震资料等为基础，通过岩心分析、连井对比、地震反演，开展了准噶尔盆地莫南斜坡永进油田侏罗系西山窑组油气藏的解剖工作，从层序地层、沉积体系、圈闭条件和输导体系等多角度分析了莫南斜坡的油气成藏条件及富集主控因素，并预测了有利区带。研究结果表明：①准噶尔盆地莫南斜坡侏罗系西山窑组整体为一个三级层序，经历了先进积-后退积的过程，顶界穿时发育的红色泥岩在全区广泛分布，为区域盖层。②研究区西山窑组西三段优质砂体呈规模性发育，浪控三角洲内前缘滩砂及外前缘临滨砂坝为有效储集体，内部泥岩段做顶底板，湖湾相泥岩侧向封堵，岩性圈闭发育的条件优越。③研究区印支—燕山期走滑断裂沟通深部源岩，可作为油源断裂，喜山期低角度大型逆冲推覆断裂横向聚集发育，并向上倾部位输导油气，为烃类运移的优势通道。④莫南斜坡北翼西山窑组西三段浪控三角洲外前缘临滨砂坝圈闭带与喜山期大东沟断裂带相交处是下步勘探有利区。

关键词: 浪控三角洲, 滩砂, 临滨砂坝, 油源断裂, 岩性圈闭, 西山窑组, 侏罗系, 莫南斜坡, 准噶尔盆地

Abstract: Based on drilling, logging，2D and 3D seismic，core analysis，well tie comparison and seismic inversion，the research of hydrocarbon reservoirs in Yongjin Oilfield of Jurissic Xishanyao Formation in Monan Slope of Junggar Basin was carried out. The main controlling factors of hydrocarbon accumulation and enrichment of Monan Slope were analyzed from perspectives of sequence stratigraphy，sedimentary system，trap conditions and transportation system，and favorable zones were predicted. The results show that：（1）Jurassic Xishanyao Formation in Monan Slope of Junggar Basin is a third-order sequence，which has undergone a process of progradationretrogradation.The red mudstone developed across time at the top boundary of Jurassic in Monan Slope is widely distributed throughout the area，and can be used as a regional cap rock.（2）The high-quality sand bodies are developed on large scale in the third member of Jurassic Xishanyao Formation.The beach sand in the inner leading edge and the shore-face sand bar in the outer leading edge of the wave-dominated delta are effective reserviors. The internal mudstone serves as the top and bottom plates，lake-bay mudstone laterally seals，providing a superior conditions for the development of lithologic traps.（3）The Indosinian-Yanshanian strike-slip faults connect deep oil sources and can serve as oil source faults. During the Himalayan，low-angle large-scale thrusting nappe faults horizontally developed and transported oil and gas upward，serving as favorable channels for hydrocarbon migration.（4）The intersection of the shore-face sand dam trap zones in the outer leading edge of the wave-dominated delta in the third member of Xishanyao Formation in the north of Monan Slope and the Dadonggou fault zones of Himalayan is favorable zone for further exploration.

Key words: wave-dominated delta, beach sand, shore-face sand dam, oil source fault, lithologic trap, Xishanyao Formation, Jurissic, Monan Slope, Junggar Basin

中图分类号:

TE122.1⁺2

尹照普, 朱峰, 周志尧, 王丽丽, 刘晓晔, 娜孜伊曼, 汪钰婷, 黄大瑞. 准噶尔盆地莫南斜坡侏罗系西山窑组油气成藏条件及富集主控因素[J]. 岩性油气藏, 2025, 37(3): 33–46.

YIN Zhaopu, ZHU Feng, ZHOU Zhiyao, WANG Lili, LIU Xiaoye, Nazyman, WANG Yuting, HUANG Darui. Main controlling factors of hydrocarbon accumulation and enrichment of Jurissic Xishanyao Formation in Monan Slope，Junggar Basin[J]. Lithologic Reservoirs, 2025, 37(3): 33–46.

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准噶尔盆地莫南斜坡侏罗系西山窑组油气成藏条件及富集主控因素

Main controlling factors of hydrocarbon accumulation and enrichment of Jurissic Xishanyao Formation in Monan Slope，Junggar Basin

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