![Orchid Energy on Twitter: "UBHO sub is used in a directional drilling BHA. It is often referred to as a mule shoe sub. This tool is typically run directly below a drill Orchid Energy on Twitter: "UBHO sub is used in a directional drilling BHA. It is often referred to as a mule shoe sub. This tool is typically run directly below a drill](https://pbs.twimg.com/media/EbsCpXOU0AEqMjd.jpg)
Orchid Energy on Twitter: "UBHO sub is used in a directional drilling BHA. It is often referred to as a mule shoe sub. This tool is typically run directly below a drill
![DIRECTIONAL DRILLING TECHNOLOGY: 21. Measurement While Drilling (MWD) and its Application in Directional Drilling DIRECTIONAL DRILLING TECHNOLOGY: 21. Measurement While Drilling (MWD) and its Application in Directional Drilling](http://2.bp.blogspot.com/-KNmclHnZRm0/TiksHio6UwI/AAAAAAAAAXU/h1MM92iPqa8/s1600/mwd_pic.jpg)
DIRECTIONAL DRILLING TECHNOLOGY: 21. Measurement While Drilling (MWD) and its Application in Directional Drilling
![US7513302B2 - Apparatus for orienting a mule shoe to enter a previously-installed tubular in a lateral and method of use - Google Patents US7513302B2 - Apparatus for orienting a mule shoe to enter a previously-installed tubular in a lateral and method of use - Google Patents](https://patentimages.storage.googleapis.com/e8/cd/2b/2405de4f03be36/US07513302-20090407-D00000.png)