LI and MK
Thank you for answering
Next question is: anyone erected a concrete crude oil tank with 300ft dia and 50 ft hight? Could be cheaper in the long run than a steel traditional tank?
TIA
DKF
BI, thank you for contribution.
In the last decades I have supported only one leakage that ocurred in one of the by-pass valves of the main SDV in a 24" pipeline transporting up to C5.
When the emergency team arrived the next day and started to dig, the valve was encapsulated in a huge ice...
Widening te scope of the search, I'd like to inform that we are aware of the services provided by TDW, FURMANITE and PLP.
Any other services providers you know of interested in sites bellow the equator?
TIA
DKF
To MickMc, we have a local office of Furmanite, but it seems that they provide only the common solutions.
To all:
The question is: what new technologies are being developped for a lpg leaking pipeline emergency repair?
-Is anyone developping something like crimping the pipeline? Wellheads use...
Yes, racookpe1978, but our focus is just to be aware that we use the best available procedure/process to perform the "STOP THE LEAKAGE".
After this step, we will permanently repair the pipeline according to rules and procedures in current use.
Thanks for commenting.
DKF
Well, let me try
LPG pipelines from 8" to 20" dia some class 600# due to topography.
As for permanent repair there is no doubt.
The question is for the first actions as to stop the leakage and condition for the permanent repair.
We see that freezing is one option, but you have to inject water in...
Little and BigInch
Pipe break, or intrusion in a liquid conducting pipe.
How to stop a static liquid column prior to full empty by gravity.
Yes the question was too generic.
Please excuse.
DKF
Hi everybody!
Curious to see if there is any new technology or method for pipeline repair that is not referred in ASME PCC-2 ?
Any comments will be wlcome.
Thanks
DKF
In most cases we do mixing for every batch once we have to dilute heavy locally produced crude. Our mixing is to homogenize and to decrease the sludge formation.
We use locally supplied mixers, not the sturdiest type. And this is the headache for maintenance.
By the way how do you measure the...
Hi JAS,
We are aware that P43 Jet Mixers are more efficient than SEM for crude homogenizing and minimizing sludge formation.
But they are more expensive for installation, difficult to maintain and require more energy to run.
In your comparative study did you consider all these parameters?
Thank...
Hi everyone!
Talking to local maintenance people, their main challenge is to keep side entering mixers operative for 10, 15 years.
In some instances the tank that cannot stop for maintenance operates without mixers for years. And in those cases we have to remove huge ammounts of sludge prior to...
I found the following reference:
Calculation and Application Example of Emergency Roof Drains
HU Chun-wei1,ZHANG Jun-sheng2(1.China Petroleum Pipeline Engineering Corporation,Langfang 065000,China;2.China Petroleum The First Construction Corporation,Luoyang 471023,China)
The functions and...
When emergency drains begin to operate we are to use weir flow approach until we have full/complete section flow. From that condition on, assuming static head is increasing, what would be the best way to estimate water flow? How to consider influence of floating roof in the flow, once water...
Thank you for your comment siamak60!
We have not considered this idea yet.
I will check the supports located in central area that are outside the main flexible drain movement area.
If feasible we will be able to increase emergency drain flow, that is clearly not sufficient.
Estimates show that...
We have some 30000 m³ tanks with diesel that, during storms, permit water draining via the emergency drains. The tanks are double deck external floating roof concept. Main drain is not capable in draining storm intensities, and roof cannot cope with heavy water loads.
The water that crosses the...
gr2vessels, tanks are still in operation, and will remain so for the next couple of years.
We are looking for a solution that could be used right away.
And just inserting a hose through the emergency drain intakes would do it.
Question is, did anyone do it before? What was impact in water...
We have some diesel EFRT.
Tropical storms increased precipitation peaks, and this results in water intake via emergency drains. This increases water dispersion in product, as it flows through the product in its way to the bottom layer.
Water level is then measured and purged according to...
That is good news, so we do not need to reinvent the wheel.
As I was not able to find any company providing this solution, via google, could you please help?
Thank you
Regards
