盆1井西凹陷三工河组储层特征与形成机理

doi:10.11885/j.issn.1674-5086.2021.04.21.01

西南石油大学学报(自然科学版) ›› 2023, Vol. 45 ›› Issue (5): 1-13.DOI: 10.11885/j.issn.1674-5086.2021.04.21.01

• 地质勘探 • 下一篇

盆1井西凹陷三工河组储层特征与形成机理

马聪^1,2,3, 周军军⁴, 胡亮^1,2,3, 齐婧^1,2,3, 吴海光⁴

1. 中国石油砾岩油气藏勘探开发重点实验室, 新疆克拉玛依 834000;
2. 新疆维吾尔自治区砾岩油藏重点实验室, 新疆克拉玛依 834000;
3. 中国石油新疆油田公司实验检测研究院, 新疆克拉玛依 834000;
4. 东北石油大学地球科学学院, 黑龙江大庆 163318

收稿日期:2021-04-21 发布日期:2023-10-28
通讯作者: 吴海光,E-mail:wuhg@nepu.edu.cn
作者简介:马聪,1989年生,女,汉族,陕西汉中人,高级工程师,主要从事储层特征实验方面的研究。E-mail:macong66@petrochina.com.cn;周军军,1996年生,男,汉族,江西崇仁人,硕士,主要从事油气储层地质方面的研究工作。E-mail:j212924495@163.com;胡亮,1974年生,男,汉族,湖南安化人,工程师,主要从事储层特征实验方面的研究工作。E-mail:huliang@petrochina.com.cn;齐婧,1993年生,女,汉族,甘肃武威人,硕士,主要从事储层特征实验方面的研究工作。E-mail:qijing93@petrochina.com.cn;吴海光,1989年生,男,汉族,江苏连云港人,副教授,博士,主要从事油气储层地质方面的研究工作。E-mail:wuhg@nepu.edu.cn
基金资助:
国家自然科学青年基金（42002151）；中国博士后科学基金（2018M641801）

Reservoir Characteristics and Formation Mechanism of Sangonghe Formation in the Sag West of Well Pen-1

MA Cong^1,2,3, ZHOU Junjun⁴, HU Liang^1,2,3, QI Jing^1,2,3, WU Haiguang⁴

1. Key Laboratory of Conglomerate Reservoir Exploration and Development, CNPC, Karamay, Xinjiang 834000, China;
2. Key Laboratory of Conglomerate Reservoir in Xinjiang, Karamay, Xinjiang 834000, China;
3. Experiment and Testing Institute, Xinjiang Oilfield Company, CNPC, Karamay, Xinjiang 834000, China;
4. School of Geosciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China

Received:2021-04-21 Published:2023-10-28

摘要/Abstract

摘要： 针对盆1井西凹陷三工河组二段（J₁s²）深层特殊的坡折带高颗粒含量密度流砂体的沉积特征和优质储层形成机理，系统开展岩芯、普通薄片和铸体薄片观察，扫描电镜、电子探针分析以及碳氧同位素测试。结果表明，盆1井西凹陷三工河组二段深层高颗粒含量密度流沉积砂体包含块状含泥砾细砾岩、块状含砾粗砂岩、块状粗砂岩、块状中-细砂岩、层状细砂岩和泥岩或粉砂岩等6种不同的岩性。其中，块状含砾粗砂岩、块状粗砂岩和块状中-细砂岩物性最好，发育大量的剩余粒间孔和溶蚀孔隙。由单一绿泥石组成的“黏土矿物膜”和由绿泥石和菱铁矿共同组成的“复合矿物膜”普遍发育于优质储层中，有效地抑制了石英的次生加大，使得砂体在深埋藏下原生孔隙得以保存。后期有机酸等流体的溶蚀作用对储层质量的改善也有一定的积极意义。

关键词: 三工河组, 深层高颗粒含量密度流, 沉积特征, 形成机理, 准噶尔盆地

Abstract: In this study, the sedimentary characteristics and the formation mechanism of the high-quality reservoir of the sandy debris flow sandbody were investigated. The systematic core, ordinary section and cast section observation, scanning electron microscopy (SEM) and electron probe analysis, and carbon and oxygen isotope measurement were carried out. The results show that the J₁s² sandy debris flow in the sag west of Well Pen-1 contains six different lithologies: Massive fine conglomerate with mud-gravel, massive coarse sandstone with gravel, massive coarse sandstone, massive medium-fine sandstone, stratified fine sandstone and mudstone (or argillaceous siltstone). The physical properties of massive coarse sandstone with gravel, massive coarse sandstone, and massive medium-fine sandstone are the best because they contain a large number of residual intergranular pores and dissolution pores. The “clay mineral coating” composed of single chlorite and the “composite mineral coating” composed of both chlorite and siderite are generally developed in the high-quality reservoirs, which effectively inhibits the secondary increase of quartz and preserves the primary pores in the deep burial process. The dissolution of organic acids and other fluids in the late period also has some positive significance for the improvement of reservoir quality.

Key words: Sangonghe Formation, deep high particle content density flow, sedimentary characteristics, formation mechanism, Junggar Basin

中图分类号:

TE122

马聪, 周军军, 胡亮, 齐婧, 吴海光. 盆1井西凹陷三工河组储层特征与形成机理[J]. 西南石油大学学报(自然科学版), 2023, 45(5): 1-13.

MA Cong, ZHOU Junjun, HU Liang, QI Jing, WU Haiguang. Reservoir Characteristics and Formation Mechanism of Sangonghe Formation in the Sag West of Well Pen-1[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2023, 45(5): 1-13.

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盆1井西凹陷三工河组储层特征与形成机理

Reservoir Characteristics and Formation Mechanism of Sangonghe Formation in the Sag West of Well Pen-1

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