Trip tank information and operation
发布时间:2016-10-21 09:19:02

We often get the inquiries on trip tanks. Some clients will also have question on trip tank. To get all things cleared and help users, we shared following information from the drillers with years experience.

Trip tank use

Trip Tanks are often circulated over the hole while tripping and loss is monitored usually electronically from the drillers console. Every 5 stands the calculations have to be quickly made to make sure the hole is taking the proper amount of fluid. Not filling properly would indicate a gas kick or swabbing the hole as well as a few other possibilities. A small tank (trip tank) is used because it is easier to get a more accurate reading than if you left the flow line lined up on the pit system. We run a 90 bbl trip tank

Trip tank

Trip tank general description

Trip tank is a typical cylindrical or rectangular tank (in a Vertical position) which storage or receive drilling fluid (depends on which operations are you doing: pulling out of the hole or tripping into the hole). The trip tank is used not only for drill pipe or drill collar....is use to monitor the filling of the well (when you pull out any kind of tool from the borehole) and to monitor the displacement of each tubular/tool ran into the borehole...in some operations, the hole can be monitored with the trip tank when none tool/tubular is into the borehole (for example, logging operations you can watch if the hole is taking or over displacing fluids).

Trip tank design&installation

Trip tank is located at the mud pits, near the shale shakers, it is used when the drill pipe is pulled out of the wellbore, because the drill pipe ocupies a volume inside the hole, and that volume needs to be replaced so the well is always filled with mud to mantain pressure as previously talked. As far as I know, that trip pump only operates during that operation cause you need to know the mud volume entering into the well

The trip tank must have 2 types of measurements (mechanical and optical/electronic/sonar type), that means, when you are using the trip tank you must know how the fluid level is inside the trip tank. Typical trip tank have 20-60 bbls of capacity (depends of each drilling contractors or the project)