压裂支撑剂在水平井井筒射孔簇间分布实验

doi:10.3969/j.issn.1006-6535.2023.04.021

特种油气藏 ›› 2023, Vol. 30 ›› Issue (4): 169-174.DOI: 10.3969/j.issn.1006-6535.2023.04.021

• 钻采工程 • 上一篇

压裂支撑剂在水平井井筒射孔簇间分布实验

赵佳乐^1,2, 李亭^1,2, 王刚³, 杨琦^4,5, 何美琪^1,2, 吴清苗^1,2, 李少明⁶

1.长江大学,湖北武汉 430100;
2.长江大学油气钻采工程湖北省重点实验室,湖北武汉 430100;
3.中国石油新疆油田分公司,新疆克拉玛依 834000;
4.中联煤层气有限责任公司,北京 100016;
5.“三气共采”省级技术创新中心,山西太原 030032;
6.中国石化江汉油田分公司,湖北潜江 433124

收稿日期:2022-11-21 修回日期:2023-04-25 出版日期:2023-08-25 发布日期:2023-09-18
通讯作者: 李亭(1978—),男,副教授,1998年毕业于石油大学(华东)石油工程专业,2014年毕业于成都理工大学油气田开发工程专业,获博士学位,现从事油气储层增产改造技术研究工作。
作者简介:赵佳乐(1999—),男,2022年毕业于潍坊科技学院电气工程及其自动化专业,现为长江大学油气田开发工程专业在读硕士研究生,主要从事油气储层增产改造技术方面研究工作。
基金资助:
油气资源与探测国家重点实验室开放课题“致密砂岩气藏水平井筒耦合渗流机理研究”(PRP/open-1901)

Experimental on Distribution of Fracturing Proppant between Perforating Clusters in Horizontal Wellbore

Zhao Jiale^1,2, Li Ting^1,2, Wang Gang³, Yang Qi^4,5, He Meiqi^1,2, Wu Qingmiao^1,2, Li Shaoming⁶

1. Yangtze University, Wuhan, Hubei 430100, China;
2. Hubei Key Laboratory of Oil and Gas Drilling and Production Engineering, Yangtze University, Wuhan, Hubei 430100, China;
3. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
4. China United Coalbed Methane Co., Ltd., Beijing 100016, China;
5. Provincial Center of Technology Innovation for Coal measure gas co-production,Taiyuan,Shanxi 030032,China;
6. Sinopec Jianghan Oilfield Company, Qianjiang, Hubei 433124, China

Received:2022-11-21 Revised:2023-04-25 Online:2023-08-25 Published:2023-09-18

摘要/Abstract

摘要： 为研究支撑剂在射孔簇中的分布,分析支撑剂沿水平井筒沉降的原理,建立了室内实验模拟装置,通过改变支撑剂泵注排量、粒径、砂比等参数,分析上述因素对支撑剂在射孔簇中分布的影响。研究结果表明:在低泵注排量下,随着砂比的增大,20/40目石英砂主要分布由第2、3个射孔簇变为第1、2个射孔簇,40/70目石英砂主要集中在第1个射孔簇中;高泵注排量下,20/40目石英砂分布与低泵注排量类似,40/70目石英砂受高速流体影响,以远超临界沉积速度的形式运移,大量沉积在第3个射孔簇;相同砂比情况下,流体对小粒径石英砂的冲击作用较弱,支撑剂易沉积在近处,而对大粒径石英砂的冲击作用较强,更易沉积在远处;随着砂比的增大,支撑剂在第1个射孔簇中的质量占比逐渐增大,在第3个射孔簇中的质量占比显著减小。该研究可为水平井分段压裂射孔簇优化和提高改造效果提供有力支撑。

关键词: 压裂, 页岩气, 水平井, 射孔簇, 支撑剂, 泵注排量, 砂比

Abstract: In order to study the distribution of proppant in the perforation cluster and analyze the principle of proppant settlement along the horizontal wellbore, an indoor experimental simulation device was established to analyze the influence of the factors above on the distribution of proppant in the perforation cluster by changing the parameters of proppant pumping displacement, particle size, sand ratio, etc. The results of the study show that under the low pumping displacement, with the increase of sand ratio, the distribution of 20/40-mesh quartz sand mainly changed from the 2ndand 3rd perforation clusters to the 1st and 2nd perforation clusters, and 40/70-mesh quartz sand mainly concentrated in the 1st perforation cluster; under the high pumping displacement, the distribution of 20/40-mesh quartz sand was similar to the low pumping displacement, and 40/70-mesh quartz sand was influenced by the high speed fluid and migrated at a speed far beyond the critical deposition rate, and mainly deposited at the 3rd perforation cluster.Under the same sand ratio, the impact of fluid on small-sized quartz sand is weaker, so the proppant was easily deposited nearby, while the impact on large-sized quartz sand is stronger and more easily deposited far away; with the increase of sand ratio, the mass proportion of proppant in the 1st perforation cluster gradually increases, and significantly decreased in the 3rd perforation cluster. This study provides a strong support for the optimization of perforation clusters for horizontal well staged fracturing and improvement of the stimulation effect.

Key words: fracturing, shale gas, horizontal well, perforation cluster, proppant, pumping displacement, sand ratio

中图分类号:

TE357.1

赵佳乐, 李亭, 王刚, 杨琦, 何美琪, 吴清苗, 李少明. 压裂支撑剂在水平井井筒射孔簇间分布实验[J]. 特种油气藏, 2023, 30(4): 169-174.

Zhao Jiale, Li Ting, Wang Gang, Yang Qi, He Meiqi, Wu Qingmiao, Li Shaoming. Experimental on Distribution of Fracturing Proppant between Perforating Clusters in Horizontal Wellbore[J]. Special Oil & Gas Reservoirs, 2023, 30(4): 169-174.

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压裂支撑剂在水平井井筒射孔簇间分布实验

Experimental on Distribution of Fracturing Proppant between Perforating Clusters in Horizontal Wellbore

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