• It is a testing against the valves of Christmas tree and against the hydraulic valves specifically

• It is a test against the all the valves of the line up and all the valves of Christmas tree

• It is a test against the mud/formation or the perforation of the reservoir to check how much the pumping rate it will take under a specific pressure

We do it by following procedures:-
• Take 100mm from the sample point once not in two times
• We put it in centerfigue glass and rotate it a minute or 60 times
• Then we see the rate of the oil
• We can take ph also by flipping it up down and put the paper of the ph under to get drops of liquid to compare the color.

• if BS&W is 0% we can take api direct by filling 500mm graduated cylinder with oil from the sample point
• if BS&W > 0% we can fill a container with liquid from the sample point then we can make a crack open in the bottom of the container valve to let dispose the water from the container to get pure oil then we can fill the cylinder with that pure oil to meassure API using hydrometer and meassuring the temperature also

(Api) Quality

1. Condensate (50 or more)
2. Light oil (20-45)
3. Crude oil (less api)

• if we have no oil at surface we can fill a cylinder from the sample point then using the water SG hydrometer
• but if we have oil at surface we need to use the container to collect the disposed water in a cylinder then using the water SG hydrometer

• ( density of liquid / density of water)
• using Ranarex

• ................................

oil shrinkage from the separator pdf

• ................................

• pumping nitrogen in the line

• pumping water in the line