吉木萨尔页岩油“下甜点”低成本技术

夏赟; 张丽萍; 褚浩元; 李佳琦; 马少云

doi:10.13809/j.cnki.cn32-1825/te.2021.04.009

• 页岩油气勘探开发 • | 浏览量 : 0 下载量: 0 CSCD: 0 CNKI被引量: 6 Scopus: 0 更多指标

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吉木萨尔页岩油“下甜点”低成本技术
Low-cost technology of Jimsar shale oil: A case study of lower “sweet spot”
2021年11卷第4期页码：536-541
纸质出版：2021
DOI： 10.13809/j.cnki.cn32-1825/te.2021.04.009
稿件说明：

移动端阅览

夏赟, 张丽萍, 褚浩元, 等. 吉木萨尔页岩油“下甜点”低成本技术[J]. 油气藏评价与开发, 2021,11(4):536-541. DOI： 10.13809/j.cnki.cn32-1825/te.2021.04.009.

XIA Yun, ZHANG Liping, CHU Haoyuan, et al. Low-cost technology of Jimsar shale oil: A case study of lower “sweet spot”[J]. Petroleum Reservoir Evaluation and Development, 2021, 11(4): 536-541. DOI： 10.13809/j.cnki.cn32-1825/te.2021.04.009.

摘要

吉木萨尔二叠系芦草沟组陆相页岩油藏储量丰富

纵向上存在上、下2个“甜点”富集段

随着开发进程的推进

“下甜点”逐渐成为开发主力层位。“下甜点”具有埋深大、非均质性强等特征

开发难度较大。伴随市场环境压力的影响

急需对工艺技术优化实现页岩油低成本开发。基于吉木萨尔页岩油“下甜点”地质特征

应用数值模拟、室内实验、裂缝监测等方法

对簇间距、滑溜水携砂性能、支撑剂导流能力等方面进行了研究

并开展了密切割、暂堵压裂

石英砂替代

全滑溜水加砂等一系列低成本工艺现场试验。现场应用效果显示：综合采用低成本压裂改造技术

在产量相当的基础上综合压裂成本可降低30 %以上

为吉木萨尔页岩油“下甜点”后续高效开发提供借鉴。

Abstract

The Permian Lucaogou Formation in Jimsar is rich in continental shale oil reserves. There are two “sweet spot” developed in the vertical direction. As the development progresses advances

the lower “sweet spot” becomes the main development layer. It has the characteristics of large depth and strong heterogeneity

which makes the development difficult. With the impact of market environmental pressure

it is urgent to optimize the stimulation technology to realize the low-cost development of shale oil. Based on the geological characteristics

the methods of numerical simulation

experiments

and fracture monitoring are used to study the cluster spacing

sand-carrying performance of slick water

conductivity of proppant and so on. Then

a series of low-cost tests such as intensive stage

temporary plugging fracturing

quartz sand replacement

and slick water sand injection have been carried out. The application effect showed that the comprehensively use of low-cost stimulation technology can reduce the cost by at least 30 %

meanwhile

maintain the output. It provides a reference for the subsequent development for Jimsar shale oil.