西南石油大学学报(自然科学版) ›› 1997, Vol. 19 ›› Issue (2): 51-54.DOI: 10.3863/j.issn.1000-2634.1997.02.11

• 石油机械工程及其它 • 上一篇    下一篇

DL-1型堵漏实验装置的研制设计

王德玉1 施太和2 卢熙坦3
  

  1. (1.机械工程系;2.石油工程系;3.长庆石油勘探局)
  • 收稿日期:1996-12-19 修回日期:1900-01-01 出版日期:1997-04-20 发布日期:1997-04-20

Design of DL-1 Device for Lost Circulation Control

Wang De-yu1 Shi Tai-he2 Lu Xi-tan3   

  1. (Dept. of Mechanical Engineering, SWPI, Sichuan, 637001)
  • Received:1996-12-19 Revised:1900-01-01 Online:1997-04-20 Published:1997-04-20

摘要:

DL-1型堵漏实验装置用对岩芯施加围压、驱压和回压来模拟井壁所受到的挤压和静压差作用,用平板缝隙流动模拟井眼环空的流动状态,使钻井液对岩芯端面和对井壁的剪切应力相同,从而使实验条件与井下环境极其相似。文中阐述了该装置的设计思路、设计要求和方案,介绍了主要结构设计。该装置应用于长庆油田堵漏项目的研究中取得了较好的实验研究效果。

关键词: 堵漏, 实验室设备, 设计, 应用

Abstract:

The DL-1 device for lost circulation control simulates the extrusion and static pressure difference of the wellface by applying confined pressure, driving pressure and back pressure to the core, and simulates the state of the drilling fluid flowing in downhole annular space by using the model of parallel plate pore flow, which makes the shear stress of the drilling fluid to the core end plane the same as that to wellface, thus makes test conditions highly similar to downhole environment. This paper explains the thought, requirement and plan of the design of the device, and presents the main structural design. Test of the device conducted in Changqing oilfield for lost circulation control was successful.

Key words: Lost circulation control, Laboratory equipment, Design, Application

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