Sunday, August 26, 2018

Offshore North Sea #ONS 2018 #OIL #GAS


Founded in 1974, Offshore North Sea (ONS),is the event where meet companies with business in the North Sea basin.

Meet DAFRAM in ONS exhibition in Stavanger Norway, we will be pleased to receive you in our booth Hall 2, stand 2520, visit DAFRAM at: www.dafram.it

The ONS event is organised and governed by the ONS Foundation, more information at:
http://www.ons.no/





Saturday, August 25, 2018

Rentel Energy: ENI Merakes Gas Field, East Kalimantan

Rentel Energy: ENI Merakes Gas Field, East Kalimantan: Eni announces the approval of the Plan of Development (POD) for the Merakes field located offshore East Kalimantan, Indonesia. ...

Sunday, August 5, 2018

ENI Merakes Gas Field, East Kalimantan



Eni announces the approval of the Plan of Development (POD) for the Merakes field located offshore East Kalimantan, Indonesia.


The Indonesian Minister for Energy  Mr. Ignasius Jonanhas, granted the approval and Mineral Resources of the Republic of Indonesia,  in April 2018.

Eni subsidiary Eni East Sepinggan is the operator of the East Sepinggan PSC and holds 85% interest in the site, while Pertamina Hulu Energy holds the remaining 15%.

The Merakes field was discovered by the Merakes 1 well, which was drilled in October 2014 in 1,372m of water.

The well was drilled to a depth of 2,732m in 1,269m of water. It encountered a 17m gas column in clean sandstones of the Pliocene age.

The gas field is expected to have a plateau production rate of 60,000 barrels of oil equivalent a day.

Image result for Merakes Gas Field
More information at:
https://www.eni.com/docs/en_IT/enicom, /media/press-release/2018/04/PR_Eni_Merakes.pdf

Saturday, August 4, 2018

Light-emitting diode (LED)

 Light-emitting diode

Physical details




Forward voltage of an LED is about 1.8 V–3.3 V
Without any specifications we'll assume they can handle 20 mA.



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Typical forward voltage  (@ 20mA)

Infrared = 1.3 V  / Red = 1.8 V / Orange = 1.9 V / Green = 2.2 V

Yellow = 2.3 V / Blue = 2.6 V / White = 3 V


Basic circuits





Image result for led voltage forward on


Two-LED flasher circuit operates at about 1Hz.



Thursday, August 2, 2018

Basic Comparator LM393

The basic usage of a comparator is to indicate when a specific analog signal has exceeded some predefined threshold. In this application, the negative input (Vref–) is tied to a reference voltage, and the positive input (Vin+) is connected to the input signal. The output is pulled up with a resistor to the logic supply voltage, V+