准噶尔盆地东部北三台凸起烧房沟组沉积模式及其对储层发育的控制作用

doi:10.3969/j.issn.1006-6535.2023.03.002

特种油气藏 ›› 2023, Vol. 30 ›› Issue (3): 9-18.DOI: 10.3969/j.issn.1006-6535.2023.03.002

准噶尔盆地东部北三台凸起烧房沟组沉积模式及其对储层发育的控制作用

罗亮^1,2, 胡晨林^1,2, 唐雅妮^1,2, 但顺华³, 韩长城^1,2, 刘子铭^1,2

1.新疆大学,新疆乌鲁木齐 830017;
2.新疆中亚造山带大陆动力学与成矿预测自治区重点实验室,新疆乌鲁木齐 830017;
3.中国石油新疆油田分公司,新疆阜康 831500

收稿日期:2022-08-24 修回日期:2023-03-01 出版日期:2023-06-25 发布日期:2023-07-13
通讯作者: 胡晨林(1990—),男,副教授,硕士生导师,2013年毕业于中国地质大学(北京)资源勘查工程(能源)专业,2019年毕业于该校矿产普查与勘探专业,获博士学位,现主要从事石油地质方面的教学与科研工作。
作者简介:罗亮(1993—),男,2017年毕业于华北科技学院地质工程专业,现为新疆大学地质资源与地质工程专业在读硕士研究生,研究方向为油气沉积地质学。
基金资助:
新疆维吾尔自治区重大专项“塔里木盆地晚奥陶世古风向对礁滩沉积的控制作用”(2020D01C064)

Sedimentary Pattern of the Shaofanggou Formation in the North Santai High Area of the Eastern Junggar Basin and its Control on Reservoir Development

Luo Liang^1,2, Hu Chenlin^1,2, Tang Ya'ni^1,2, Dan Shunhua³, Han Changcheng^1,2, Liu Ziming^1,2

1. Xinjiang University, Urumqi, Xinjiang 830017, China;
2. Key Laboratory of Continental Dynamics and Mineral Formation Prediction of Central Asian Orogenic Belt in Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang 830017, China;
3. PetroChina Xinjiang Oilfield Company, Fukang, Xinjiang 831500, China

Received:2022-08-24 Revised:2023-03-01 Online:2023-06-25 Published:2023-07-13

摘要/Abstract

摘要： 为认识准噶尔盆地东部北三台凸起地区三叠系烧房沟组沉积特征及沉积模式,厘清储层发育的制约因素,在沉积学的基础上,结合岩心、薄片、粒度、常规物性等资料,开展了烧房沟组沉积模式及其对储层发育的控制作用研究。研究表明:烧房沟组共发育9种典型的岩相类型,分别为槽状交错层理砾岩相、板状交错层理砾岩相、块状层理砾岩相、槽状交错层理砂岩相、板状交错层理砂岩相、块状层理砂岩相、浪成砂纹层理砂岩相、平行层理粉砂岩相和块状层理泥岩相;烧房沟组主要以辫状河三角洲相为主,沉积微相包括泛滥平原、水上辫状河道、心滩、天然堤、水下辫状河道、分流河道间、水下天然堤、河口坝、前三角洲泥和滩坝10种类型,其中,水下辫状河道、河口坝及滩坝储层物性最好,平均孔隙度分别为17.31%、20.66%、21.81%,平均渗透率分别为6.89、7.05、12.98 mD;该区储层物性主要受到沉积作用的控制,优质储层主要发育于水下辫状河道、河口坝及滩坝微相中。研究认识可为研究区油气进一步精细勘探开发提供理论基础。

关键词: 沉积模式, 辫状河三角洲, 沉积特征, 烧房沟组, 准噶尔盆地东部

Abstract: To understand the sedimentary characteristics and sedimentary patterns of the Triassic Shaofanggou Formation in the North Santai High area of the eastern Junggar Basin and clarify the constraints on reservoir development, a study on the sedimentary patterns of the Shaofanggou Formation and its control on reservoir development was carried out on the basis of sedimentology and in combination with the data such as core, thin section, grain size and conventional physical properties. The study shows that there are nine typical petrographic types developed in the Shaofanggou Formation, namely channeled interlaminated conglomerate phase, platy interlaminated conglomerate phase, massive laminated conglomerate phase, channeled interlaminated sandstone phase, platy interlaminated sandstone phase, massive laminated sandstone phase, wave-formed sand laminated sandstone phase, parallel laminated siltstone phase and massive laminated mudstone phase; the Shaofanggou Formation is mainly dominated by braided river delta phase, and the sedimentary microphases include 10 types such as floodplain, abovewater braided river channel, channel bar, natural dike, underwater braided river channel, interdistributary area, underwater natural dike, estuary bar, prodelta mud and beach bar, among which, underwater braided river channel, estuary bar and beach bar reservoirs have the best physical properties, with average porosity of 17.31%, 20.66% and 21.81%, and average permeability of 6.89, 7.05 and 12.98 mD, respectively. The reservoir properties in this area are mainly controlled by sedimentation, and the high-quality reservoirs are mainly developed in underwater braided channels, estuary bar and beach bar microphase. The study can provide a theoretical basis for further fine exploration and development of oil and gas within the study area.

Key words: sedimentary pattern, braided river delta, sedimentary characteristics, Shaofanggou Formation, eastern Junggar Basin

中图分类号:

TE121

罗亮, 胡晨林, 唐雅妮, 但顺华, 韩长城, 刘子铭. 准噶尔盆地东部北三台凸起烧房沟组沉积模式及其对储层发育的控制作用[J]. 特种油气藏, 2023, 30(3): 9-18.

Luo Liang, Hu Chenlin, Tang Ya'ni, Dan Shunhua, Han Changcheng, Liu Ziming. Sedimentary Pattern of the Shaofanggou Formation in the North Santai High Area of the Eastern Junggar Basin and its Control on Reservoir Development[J]. Special Oil & Gas Reservoirs, 2023, 30(3): 9-18.

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准噶尔盆地东部北三台凸起烧房沟组沉积模式及其对储层发育的控制作用

Sedimentary Pattern of the Shaofanggou Formation in the North Santai High Area of the Eastern Junggar Basin and its Control on Reservoir Development

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