非常规/复杂油藏

间距决策的严格测试:在米德兰盆地 3×2 英里的租地上完成 44 口井,支管长度为 129 英里

一项 44 口井的开发测试了康菲石油公司通过弄清楚油井如何排水来最大化井的价值的知识。

地图以绿色显示石油浓度
一张以绿色显示石油浓度的地图是有效排空米德兰盆地大型未钻地层的计划的起点。
资料来源:URTeC 3856029。

康菲石油公司在二叠纪盆地拥有越来越难得的机会——占地 6 平方英里的土地覆盖着多层未开发的优质页岩。

这个米德兰盆地项目规模巨大,有 44 口井,支管延伸了 3 英里的租约长度,这就是公司的耐心。

去年秋天,当康菲石油公司的一个小组在米德兰举行的SPE 二叠纪盆地能源会议上描述该大型项目时,他们表示钻探工作已完成约 70%。压裂工作将在钻探结束时开始,大约需要 8 个月才能完成。

只有这样,这个地质池中的井才会投入生产,从而限制与租赁线内旧井的任何相互作用。然而,在该边界之外,还有一些可能相互作用的老井。

主持小组讨论的康菲石油公司地质学家布雷迪·科尔布 (Brady Kolb) 解释说:“所有区域都以某种形式进行交流,因此我们将整个储罐同时交付,以最大限度地获取资源。”

收益来自于避免与老井及其产生的枯竭区以及未开发的岩石之间产生有害的相互作用,以在母体周围形成广阔的缓冲区。

此外,他们正在部署创新技术来降低燃料成本和排放,从为其五台钻机中的两台提供电网供电,到处理现场气体以产生运行压裂设备所需的丰富气体。他们正在利用钻井时收集的大量数据来不断改进后续井的工作。

从某一层面来说,它肯定会成功。

SPE_logo_CMYK_trans_sm.png
成为 SPE 会员继续阅读
SPE 会员:请在页面顶部登录才能访问此会员专享内容。如果您还不是会员,但发现 JPT 内容很有价值,我们鼓励您成为 SPE 会员社区的一部分,以获得完全访问权限。
原文链接/jpt
Unconventional/complex reservoirs

An Acid Test for Spacing Decisions: Complete 44 Wells With 129 Miles of Laterals on a 3×2-Mile Lease in the Midland Basin

A 44-well development tests what ConocoPhillips has learned about maximizing the value of the wells by figuring out how they drain the reservoir.

map showing concentrations of oil in green
A map showing concentrations of oil in green is the starting point for a plan to efficiently drain a large, undrilled formation in the Midland Basin.
Source: URTeC 3856029.

ConocoPhillips has an increasingly rare opportunity in the Permian—6 square miles of land over multiple layers of prime, undeveloped shale.

The scale of this Midland Basin project is huge—44 wells with laterals running the 3-mile length of the lease—as is the company’s patience.

Last fall, when a ConocoPhillips panel described the megaproject at the SPE Permian Basin Energy Conference in Midland, they said they were about 70% done with drilling. Fracturing would begin as drilling was ending and would take about 8 months to complete.

Only then would the wells in this geologic tank go into production, limiting any interactions with older wells inside the lease lines. However, outside that boundary there are older wells that could interact.

Brady Kolb, a staff geologist for ConocoPhillips who led off the panel discussion, explained, “All the zones communicate in some shape or form, so we take the whole tank and deliver it at the same time to maximize resource capture.”

The gains come from avoiding harmful interactions with older wells and the depleted zones they create, as well as the rock left undeveloped to create wide buffer zones around parents.

In addition, they are deploying innovative technology to reduce fuel costs and emissions, from grid power for two of its five drilling rigs to processing field gas to create the rich gas needed to run fracturing equipment. And they are using the flood of data gathered while drilling to continuously improve work on later wells.

On one level, it will certainly succeed.

×
SPE_logo_CMYK_trans_sm.png
Continue Reading with SPE Membership
SPE Members: Please sign in at the top of the page for access to this member-exclusive content. If you are not a member and you find JPT content valuable, we encourage you to become a part of the SPE member community to gain full access.