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为了经济、有效地开发浅层稠油油藏,以使稠油热采水平井的工艺技术尽快成熟并推广应用,使水平井方式成为浅层稠油油藏经济有效开发的一种主要技术手段。而采用常规直井钻机钻浅层稠油水平井下套管、筛管,在井口实现加压就成为急需解决的问题。本文论述一套能够解决上述难题、独立、简便、可应用于各种型号钻机的可循环加压装置,该项技术以填补这一领域的技术空白。
In order to economically and effectively develop shallow heavy oil reservoirs so as to make the technology of horizontal wells for heavy oil thermal recovery mature and popularize as soon as possible so that the horizontal well mode becomes a major technical means for economical and effective development of shallow heavy oil reservoirs . However, using conventional vertical well drilling rigs to drill horizontal wells and screens of shallow heavy oil, pressurization at the wellhead becomes an urgent problem to be solved. This article discusses a set of recoverable pressurization devices that can solve the above problems independently and easily and can be applied to various types of drilling rigs to fill the technical gap in this field.