Day 2 @ IADC conference.

Its  9.45 am 

Breakfast is over n Back to work now.

Lecture began with different well killing methods.

Principle of any killing method:- To keep bottom hole pressure constant.

Mainly 4 killing methods.

1.Driller's method-Easiest Method, Two cycle method, Less calculative, Mostly preferred By Engineers.

1st cycle-Removal of current mud along with kick flux.

2nd cycle-will circulate kill mud

2.wait & weight method-One cycle Method

3.Concurrent Method-Best Method, Generally not preferred due to large calculation

4.Volumetric Method-Gas is allowed to expel out slowly out  of the wellbore.

       It is time consuming may take few weeks to months depending upon formation.

      

 Note-In drillers method Surface pressure will be always more than wait & weight method.


Now a detailed look on  Drillers Method.
  
                                                  1st Cycle
The first circulation removes influx with original mud weight. The drill pipe pressure is held constant to maintain constant bottom hole pressure as shown in fig1.1 which is equal to (SIDPP+SCR){SCR-Slow circulating rate}. Drill pipe pressure will be held constant until influx is removed from annulus. If the wellbore influx is gas, it will expand when it comes close to surface therefore you will see an increase in pit volume and casing pressure.

drillers method1st cycle_fig1.1

                                                       2nd cycle

                                  

Second circulation kills well with kill mud. When the required kill mud weight is mixed, it is time to start the second circulation of driller method. We start with bringing pumps  to kill rate by holding casing rate constant. While circulating the kill mud, until casing pressure is held constant until mud reached bit.

After that we need to maintain drill pipe pressure constant, then continue circulating it till kill mud reaches surface. After shutting down pumping operation will check drill pipe and casing pressure if it is zero then kick is killed otherwise,  some influx is there to remove.

drillers method_2nd cycle fig 1.2

                                                      

@ 1.30 pm

Its time for numerical.

Had 2 numericals which almost took 2 hours due to our front benchers(our industry people) :p

Note:- Kill Mud Density=(SIDPP/0.052*well tvd) + Current mud Density
              Final Circulating Pressure(FCP)=KMW/OMW*SCR


@3.30 pm
Finally its time for most exiting session of 2days workshop.
Instruments worth RS.30 Lakhs.

was really amazing to deal with.
Instruments were doing everything. A main laptop was acting as a well. and other three were to monitor and control conditions.
Using system kick was taken and instruments holders(our industry people)  needed to get it killed.
Below is some snaps of same.

This is the main computer or in our Laymen's language we can say a well!!

Blue machine was showing Surface pressure, SPM and Total Strokes.

by which we also can make movement of drill string using handle which can be seen in d screen.Right one is touch screen monitor by which v can take readings of SIDPP, SICP, SPM, Open or close BOP, operate choke & kill line.

Is used when kick is occurred to maintain pressure by closing or opening choke in this case handle.
Left Dial is for SIDPP and Right one is for SICP.


Finally Done with 2day's seminar was  really fruitful especially second session.


Regards,
Deep Shah

Suggestions to run blog smoothly.


Hi everyone
Here are my some sugestions.

1) It would be better if we clearly mention title on any new post. I would recommend to use different but unique font colors for different types of post. For example posts related to "petro-news" can be in white color fonts. Or we can have any other way to easily differentiate all types of posts.
2) Don't try to mess up or edit others' post because we all have access to each others' posts. Please keep your any kind of animosity or feuds out of the blog.
3) Please don't use bad language because other people outside of university may also visit the blog. If it is really necessary to express your feelings use method of newspapers. censor the words.
4) I would suggest that at the end of every post please mention your name. Please don't use nicknames.
5) Don't use blog for spreading any kind of updates because there will be very few frequent visitors. Use facebook for it so that nobody gets away with "I informed you all on the blog".
6) Please ask others before making any major changes in the blog settings.

These are merely my suggestions. You can put forward your views on it.
Regards
Harsh Patel  

A New Beginning

Hey everybody
hope you guys are doing great. As we discussed earlier, here is a blog to put upto your needs
Write up whatever you do
the smallest advancement you make
you think you got a topic better in class than others, post what you think about it.
Want to start a new research paper? Come and ask how many people think it'll work.
Talk about the blog to people and ask them to visit it. The more hits we get, the higher we climb on the google search list when anybody types in a keyword.
This can be a platform to permanently document anything on cloud as much as you want. Right from an equation in RE to a picture you took on a rig

If its information share it. Make knowledge of some use and hope there will be brighter suns to see tomorrow.
Regards
The Sign Painter