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An Introduction to Well Integrity

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  • 更新日期:2020-01-10 12:37
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详细介绍
 Well Integrity is defined in Norsok D-010 as: “application of technical, operational and organizational solutions to reduce risk of uncontrolled release of formation fluids throughout the life cycle of a well”.
Norsok D-010 is a functional standard and sets the minimum requirements for the equipment/solutions to be used in a well, but it leaves it up to the operating companies to choose the solutions that meet the requirements. The operating companies then have the full responsibility for being compliant with the standard.
Following from this definition, the personnel planning the drilling and completion of wells will have to identify the solutions that give safe well life cycle designs that meet the minimum requirements of the standard.
Another implication is that operating companies and service providers have an obligation to ensure that the equipment planned to be used will comply with the standard and if not, the equipment will need to be improved and qualified before use. Deviations from the standard can be made in some cases when the standard allows this. If a solution selected deviates from the standard, then this solution needs to be equivalent or better compared to what the requirement is.
When selecting technical solutions, it is important to set the right equipment specifications and define the requirements for the well barrier to ensure the well integrity is maintained throughout the well life. Typical things to specify are the BOP rating and size, the casings to be used, the pressure rating on downhole and topside equipment and the material specification of the equipment. These specifications will be set at an early stage of a project and the later selection of equipment will be based on it.

本文作者,大庆王炜,网名Peter(爱好石油英语的技术工程师,石油翻译,微信w911548417,qq911548417)

一个单词与一本书----《An Introduction to Well Integrity》 
今天四月通过试油监督班杨总的讲解,知道了井的完整性(integrity) 这个单词,对于井的完整integrity有了初步的认识。前段时间通过微信看见杨总翻译了这本书,所以十分荣幸的邀请杨总加入了石油英语读书群,并且通过一位在海外工作的朋友找到了这本原版书,终于对于井的完整性有了全面清晰的认识。
震惊世界的英国石油公司墨西哥湾Macdanold井喷漏油事故,以及身边的X平1井由于井的完整性导致井内天然气窜入地表水,发生严重的事故,导致了井的报废,都造成了严重的经济财产损失。特别是我们试气施工中的很多气井A,B,C环空都具有压力,该书详细全面分析了产生压力的原因。我们现场施工很多情况下对这些异常情况都分析不到位,认识不十分清晰,技术参数确认不准,有针对性的技术措施不到位。在该书中都能找到清楚明确的答案。特别是该书结尾针对环空压力,确定出了最大安全允许环空压力,最大允许环空操作压力,最小环空压力,对于现场人员技术人员有了明确的可操作性。

 
 
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