Short Trip is an action that you trip out of pipe certain stand and then trip back in hole. Performing short trip helps remove a cutting bed due to pipe movement. While tripping in and out-bit, bottom hole assembly (BHA), and drill pipe that are pulled through cutting bed can agitate the cutting bed. Once the pumps are turn on, additional cutting can be removed. Additionally, short trip may be done when there is a long sliding section via a mud motor. It is beneficial to do because sliding with the mud motor create a lot of cutting beds that are not effectively removed because of no pipe rotation.
Wiper Trip is a similar action as a short trip but the trip is longer. Typically, drill string is pulled out at least equal to open hole length and then trip back in hole to the previous TD. The wiper trip is able to remove a lot of cutting beds because the trip is quite long.
Both short trip and wiper trip are very useful for hole cleaning. However, these trips take additional rig time. Hole condition, torque and drag, and field experience will dictate whether you need to do either short trip or wiper trip. Personally, I will don’t do these trips if I don’t feel that I need it. Not only is time spent, you also have chances to have other problems as wellbore instability, formation damage, wash out formation, etc.
This is an example of short trip or wiper trip procedure that you can apply to your operation.
1. Circulate bottom up and observe if shale shakers are clean.
2. Trip out of hole xx stands.
3. Circulate bottom up and observe if shale shakers are clean.
4. Trip back in hole.
5. Circulate bottom up and observe if shale shakers are clean.
Reference books: Drilling Fluid Books