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Compatible with iPhone, iPad, and iPod touch. App Store Preview. This app is only available on the App Store for iOS devices. Screenshots iPhone iPad. Description Well control is essential for every drilling company and it is imperative that training be delivered in the most efficient way possible, to enable employees to pass the necessary exams and work in a safe manner. Information Seller Zulkernain Javed Raja. Size Category Education. Compatibility Requires iOS 8.

The following Total Quality Assurance reference documents and practice exams will help you prepare for your Well Control training exams and help you understand the topics presented in our Well Control courses. Many students find it helpful to work through some of the exercises prior to attending the course to determine where they may need specific help. We have also provided generic pre-work below for Rig Math and Simulator questions.

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While circulating a gas kick out during the first circulation of the Drillers Method, what will happen to bottom hole pressure if the casing pressure is held constant? Intertek Global Website.


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Dealing with a Choke Wash-out : If you detect that your choke is washing out you should immediately order the driller to isolate the choke by closing a valve upstream of the choke. Once the washed out choke is isolated, you need to quickly shut down the pump to avoid adding too much bottom hole pressure from pumping against a closed choke.

Once the pump is shut down you can line up on choke 2 backup choke and resume the kill. Note: This was the scenario I was given during my practical exam. Dealing with a Plugged Choke: If you detect that your choke is plugging, you should immediately shut down the mud pump. After the pump is off, line up on choke 2 and start back up the well killing process. Dealing with a Tripped Mud Pump: If your mud pump trips offline during your well control scenario, all you have to do is immediately close the choke and then line up to use mud pump 2.

How to Calculate Weight of Kill Mud

Dealing with a Plugged Bit: If you encounter a plugged bit, take note of the pump pressures. It will be expected that you slowly stop the mud pump gradually slowing the pump maintaining casing and kill-line pressure. To help me prepare for any of the above issues, I made four flash cards one for each possible scenario. On the front of the card, I drew little gauges with pressure readings with a brief description that represented the tell tales of each possible problem that the simulator instructor could throw at me.

On the back of the card, I would write out what I needed to do to remedy the problem. Every once in a while I would run through these cards until it became second nature to identify the problem and what would need to be done to solve it. The final piece of the simulator exam is learning to properly operate the choke to circulate out the influx while maintaining bottom hole pressure.

Well Control - Basic Knowledge 1

Fortunately, as the week went on I got better and better. Minutes During this time frame, the driller starts actually drilling the well and the supervisor Level 4 candidate is actually out of the simulator room. Minutes The driller detecting a kick and the well is flowing. He shuts the well in and calls the supervisor Level 4 into the simulator room. Minute The mud pump is slowly brought up to kill rate speed in 5 SPM intervals while the Level 4 supervisor slowly opens the choke to maintain the original casing pressure. Once the mud pump is slowly brought up to the kill rate speed, you need to take note of the Initial Circulating Pressure to make sure it is close to what you calculated on your kill sheet more on Kill Sheets in a bit.

Minute At approximately minute , you can see where the black line bottom hole pressure started to drop off. The problem in my case was a washed out choke.

How to Pass the IWCF Supervisor Well Control Exam – The Maritime Site

You can see where I had the driller isolate the choke and we lined up on choke 2 to resume the scenario. Minutes to End: The rest of the simulation was simply adjusting the choke to account for the expansion of the gas from the well. Fortunately for me the scenario was over before any additional influx came which could have affected my score.

This is especially true if you are fortunate enough to have started out offshore on a 4th, 5th, or 6th generation drilling rig. As you learn more and more about the various equipment and their components, the next group of questions in the IWCF Study Pack become easier and easier. Study the drawings and practice memorizing the various components. After a while, you can white out the labels on the equipment and test yourself to see if you can make it all the way through the equipment drawings without referring to an un-whited out version. I cannot emphasize this enough, you really do learn about the equipment by studying the questions and it all starts to make sense after a while.

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It is also the longest. Internal Capacities: Drill Pipe: 5 inch 0. Other relevant information: Active surface volume bbls Drill pipe closed end displacement 0. Formation strength test data: Surface leak-off pressure with 11 ppg mud psi. Kick Data: The well kicked at ft vertical depth Shut in drill pipe pressure psi Shut in casing pressure psi Pit gain 10 bbl Mud Density For this section, you need to fill in the blocks using the data from the example kill sheet data pages above.

For B you use the mud weight used during the surface leak-off pressure test from the same section. C is calculated by plugging A and B into the formula given to you in the box. You must round down to The displacement per stroke of the pump is given to you as well as the slow pump rate data through the riser and the choke line. The information for this section is also pulled from the example kill sheet problem data. Measured depth is used when calculating volumes of fluids.

Introduction:

TVD is used when calculating hydrostatic pressures. For example, you would use MD when calculating the volume of fluid in the drill pipe but you would use TVD when calculating the hydrostatic pressure of the fluid in the drill pipe. Calculating the drill string volume is as simple as plugging the length of your drill pipe, heavy weight drill pipe hevi wall or HWDP and drill collar into the drill string volume section.

The only tricky thing is figuring out the drill pipe length. Since the length of Heavy Weight Drill Pipe and Drill Collars are given to you, all you need to do is subtract these two values from the total MD of the well to find the drill pipe length. After you find the total drill string volume bbls in our example you divide the bbls by the pump displacement per stroke.

To find the length of DP and HWDP in the uncased section of the well the open hole section you need to first find out how much open hole you have. The total well system volume is calculated by adding values D and I from above which gives you Divide this by your pump displacement per stoke. The active surface volume is given to you in the data sheet so you record it in this section and then divide it by the pump displacement.

Total active fluid system volume is calculated by adding the previous two volumes and strokes together. Caution: Make sure you use the Riser capacity with drill pipe in the riser vs. Kill mud weight is calculated by plugging the numbers into the formula provided in the section. All you need to do is plug the numbers in and calculate the mud weight needed to kill the well.


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  7. Kill mud is usually recorded to one decimal place so it would be natural to want to round this value down to However you always round up kill mud weight to the nearest tenth so The reason being if you made it