该井是该生产许可证下钻的第一口井，该许可证于 2024 年 3 月 15 日授予（预定区域授予日期为 2023 年）。

该井由 COSL Prospector 钻井平台钻探（见图）。

地质信息

该井的主要勘探目标是探明托尔斯克组始新统储层中的石油。该井的次要勘探目标是探明托尔斯克组下部古新统储层中的石油。

托尔斯克组始新世部分异常高压带来的操作挑战导致了技术上的偏离。

该井在托尔斯克组主要勘探目标中未遇到储层岩体。托尔斯克组次要勘探目标也未实现。

在主要勘探目标上方，该井在托尔斯克组遇到了一层厚度为 4 米、储层质量良好的砂岩层。

该井被归类为干井。该井未进行地层测试，但进行了广泛的数据采集。7117/4-1井的垂直深度为海平面以下2511米，终止于中始新世的托尔斯克组。

现场水深283米，该井将被永久封堵并废弃。

在线阅读文章：https://www.oilfieldtechnology.com/drilling-and-production/01092025/equinor-and-its-partners-have-drilled-a-dry-well-in-the-deimos-prospect/

This well is the first one drilled in the production licence, which was awarded on 15 March 2024 (Awards in predefined areas 2023).

The well was drilled by the COSL Prospector rig (see image).

Geological information

The well's primary exploration target was to prove petroleum in Eocene reservoir rocks in the Torsk Formation. The well's secondary exploration target was to prove petroleum in Palaeocene reservoir rocks in the lower Torsk Formation.

Operational challenges associated with unusually high pressure in the Eocene part of the Torsk Formation resulted in a technical sidetrack.

The well did not encounter reservoir rocks in the primary exploration target in the Torsk Formation. The secondary exploration target in the Torsk Formation was not achieved.

Above the primary exploration target, the well encountered a 4 m sandstone layer with good reservoir quality in the Torsk Formation.

The well is classified as dry. The well was not formation-tested, but extensive data acquisition was undertaken. Well 7117/4-1 was drilled to a vertical depth of 2511 metres below sea level and was terminated in the Torsk Formation in the Middle Eocene.

Water depth at the site is 283 m. The well will be permanently plugged and abandoned.

Read the article online at: https://www.oilfieldtechnology.com/drilling-and-production/01092025/equinor-and-its-partners-have-drilled-a-dry-well-in-the-deimos-prospect/