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在挪威海海滨对一口探井进行了评价。这是一口高温高压井,最深储层温度超过180℃、压力大于800bar,采用油基泥浆钻井。在钻开顶部储层后,开始使用随钻地层压力仪。在标准的中途测试之后,进行了电缆地层压力测试、取样和简化的中途测试。本文概述了在极具挑战性的环境中的数据采集计划、执行及其结果。在垂直随钻测井随钻地层压力仪采集和EWL双管封隔器环境温度中取得了有史以来的第一次成功。由于受钻机的限制,在所有储层进行中途测试是不可能的。为了进一步理解储层的复杂性,随钻测井、泥浆测井岩心和电缆数据不但弥补了缺失,而且在分辨率方面也具有优势。
An exploratory well was evaluated at the Norwegian seaside. This is a high temperature and pressure wells, the deepest reservoir temperature exceeds 180 ℃, the pressure is greater than 800bar, the use of oil-based mud drilling. After drilling the top reservoir, begin to use the logging formation pressure gauge. After the standard midway test, cable formation stress testing, sampling, and simplified midway testing were performed. This article provides an overview of data acquisition plans, executions and their results in challenging environments. The first successful all-time success was achieved in vertical logging while drilling (LWD) logging-on-formation pressure gauges and the EWL twin-pipe packer ambient temperature. Due to rig limitations, it is not possible to test mid-life on all reservoirs. To further understand reservoir complexity, LWDs, mud logging cores and cable data not only make up for the missing but also provide advantages in terms of resolution.