Ayoluengo oil field
The Ayoluengo oil field is an oil field located in Sargentes de la Lora, Province of Burgos. It was discovered in 1960 and developed by Leni Oil & Gas. It began production in 1961 and produces oil. The total proven reserves of the Ayoluengo oil field are around 104 million barrels (13.9×106tonnes), and production is centered on 225 barrels per day (35.8 m3/d).[2]
| Ayoluengo | |
|---|---|
| Country | Spain |
| Region | Province of Burgos |
| Offshore/onshore | onshore |
| Operator | Leni Oil & Gas |
| Field history | |
| Discovery | 1964[1] |
| Start of development | 1964 |
| Start of production | 1967[1] |
| Production | |
| Current production of oil | 150 barrels per day (~7,500 t/a) |
| Estimated oil in place | 13.9 million tonnes (~ 16.5×106 m3 or 104 million bbl) |
Geology
The 10 km2 field consists of a Triassic salt-cored anticline with 200 m of vertical closure. Oil and gas are produced from more than 50 lenticular sandstone bodies of Late Jurassic to Early Cretaceous age. These sandstone bodies lie at a depth of at least 1300 m. The last well was drilled in 1990, making for a total of 52. Only 10 wells were active by 2016, when the cumulative production had reached 17 million barrels of oil.[3]
References
- Spain's Oldest and Only Onshore Oilfield
- "Ayoluengo Oilfield". Leni gas & oil. 2012. Archived from the original on 2013-05-16. Retrieved 2013-05-15.
- http://www.aapg.org/publications/news/explorer/column/articleid/26767/spain%e2%80%99s-oldest-and-only-onshore-oilfield