二氧化碳压裂供液系统设计

doi:10.3969/J. ISSN.1006-768X.2020.04.21

钻采工艺 ›› 2020, Vol. 43 ›› Issue (4): 75-77.DOI: 10.3969/J. ISSN.1006-768X.2020.04.21

二氧化碳压裂供液系统设计

杨延增^1,2,3, 聂俊^1,2,3, 叶文勇^1,2,3, 章东哲^1,2,3,赵航博^1,2,3, 宋晓梅^1,2,3, 谭欢¹

1 中国石油集团川庆钻探工程有限公司工程技术研究院 2 低渗透油气田勘探开发国家工程实验室3 中国石油天然气集团公司油气藏改造重点实验室·二氧化碳压裂增产研究室

出版日期:2020-07-25 发布日期:2020-07-25
作者简介:杨延增(1977 - ) , 高级工程师, 2002 年毕业于西安交通大学机械工程及其自动化专业, 现主要从事CO2干法压裂相关设备、工艺研究。地址: ( 710021 ) 陕西省西安市长庆兴隆园小区长庆科技大厦, 电话:18149097011 , E - mail: yyzeng_gcy@ cnpc. com. cn
基金资助:
中国石油天然气集团公司科学研究与技术开发项目“ CO₂ 干法加砂压裂技术现场试验” (编号:2015 F - 0101 )。

Design of Liquid Supplying System in Carbon Dioxide Fracturing

YANG Yanzeng1^,2,3 , NIE Jun^{1 ,2,3} , YE Wenrong^{1 ,2,3} , ZHANG Dongzhe^{1 ,2,3} , ZHAO Hangbo ^{1 ,2,3} , SONG Xiaomei^1,2,3 , TAN Huan¹

1 . CCDC Drilling & Production Engineering Technology Research Institute, Guanghan, Sichuan 618300, China; 2. National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields, Guanghan, Sichuan 618300, China; 3. Carbon Dioxide Fracturing and Stimulation Laboratory, Key Laboratory of Oil and Gas Reservoir Reconstruction, CNPC

Online:2020-07-25 Published:2020-07-25
Supported by:

摘要/Abstract

摘要： CO₂压裂技术早期应用过程中，使用常规CO₂槽车和 CO₂增压泵车作为压裂车的主要供液设备，施工过程中由于增压泵车的抽吸作用和地面管路的摩阻，使得CO₂槽车中处于临界状态的液态CO₂部分气化，导致施工排量难以提高且极不稳定，影响施工的正常进行。针对液态 CO₂气化导致的压裂装备走空泵、排量波动、持续供液难等问题，主要从气体增压装置、控制系统、CO₂储罐及地面管汇四部分对供液系统进行设计，通过现场多井次的应用表明该供液系统可大幅提高施工排量，保持整个施工过程的排量平稳，为 CO₂压裂技术的现场成功应用奠定了坚实的基础。文章主要从技术分析、系统功能、系统结构、现场应用四个方面介绍该供液系统。

关键词: CO₂压裂, 供液系统, 气体增压, 气化

Abstract:

In the early application of carbon dioxide fracturing technology, the conventional carbon dioxide tank car and carbon dioxide booster pump are used as the main liquid supply equipment for the fracturing car. In the process of fracturing, the suction function of the booster pump and the friction of the ground pipe make the liquid carbon dioxide gasifying partly, which causes the displacement is improved difficultly and unstable extremely. In view of the problems of fracturing equipment, such as the gasification of liquid carbon dioxide in pump, the fluctuation of displacement and the difficulty of continuous liquid supply, the liquid supply system is designed mainly from four parts, including gas pressurization equipment, control system, carbon dioxide storage tank and the ground pipe line. The application of multi wells in the field shows that the liquid supplying system can greatly improve the construction displacement and ensure stable displacement during the construction process. It laid the solid foundation for the successful application of carbon dioxide fracturing technology. This paper mainly introduces the liquid supply system from four aspects: technical analysis, system function, system structure and field application.

Key words: , carbon dioxide fracturing, liquid supply system, gas pressurization, gasification

中图分类号:

杨延增, 聂俊, 叶文勇, 章东哲, 赵航博, 宋晓梅, 谭欢. 二氧化碳压裂供液系统设计[J]. 钻采工艺, 2020, 43(4): 75-77.

YANG Yanzeng, NIE Jun, YE Wenrong, ZHANG Dongzhe, ZHAO Hangbo, SONG Xiaomei, TAN Huan . Design of Liquid Supplying System in Carbon Dioxide Fracturing[J]. Drilling & Production Technology, 2020, 43(4): 75-77.

二氧化碳压裂供液系统设计

Design of Liquid Supplying System in Carbon Dioxide Fracturing

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