Stuck Pipe Summary

I have posted several stuck pipe articles and I would like to summarize all articles in one page so you can use it for future reference.

Stuck pipe categories

There are 3 categories of stuck pipes as follows:

1. Packing off and bridging: There are seven cases in this category.

• Cutting settling in near well bore wells and cutting setting in deviated wells

• Shale instability

• Unconsolidated formations

• Fractured formations

• Soft cement

• Cement Blocks

• Junk

2. Differential sticking: There is only one case in this category.

• Differential sticking

3. Wellbore geometry: There are six cases in this category.

• Stiff bottom hole assembly

• Key seat

• Micro doglegs

• Ledges

• Mobile formations

• Undergauge hole

• Hydro-Pressured Shale

• Geo-Pressured Shale

• Overburden Stress

• Tectonic Stress

• Unconsolidated Formation

These following articles demonstrate how to free stuck pipe for particular circumstance.

• How To Free Stuck Pipe Caused By Wellbore Geometry

• How To Free Stuck Pipe Caused By Differential Sticking

• How To Free Stuck Pipe Caused by Bridging off and Packing off

If you want to know where the stuck pipe is, the stuck depth calculation articles are as follows:

• Determine the feet of free pipe using table

• Determine free point constant (FPC)

• Determine how many feet of free pipe without free pipe constant table

Lastly, I wish you would enjoy this stuck pipe summary page. Please keep it for a reference.

References

John Mitchell Drilbert Engineering, 2002. Trouble-Free Drilling Volume 1: Stuck Pipe Prevention. Edition. Drilbert Engineering Inc.

Fanarco.net. 1999. Stuck Pipe Prevention Self-Learning Course. [ONLINE] Available at: http://www.fanarco.net/books/drilling/stuck-pipe.pdf. [Accessed 21 June 2016].