PetroNeft Resources PLC has discovered a sixth oil field on License 61, Tomsk Oblast, Western Siberia, Russia.
The company reported an unstimulated inflow of 170 b/d of 37° gravity oil from the main Upper Jurassic target at the Sibkrayevskaya 372 well on the northeastern part of the license.
The well was a follow-up to Well 370 drilled in 1972. A comprehensive reinterpretation of the vintage well logs and drilling data from Well 370 using digitized logs and modern interpretation tools had indentified potential bypassed pay in the Upper Jurassic J1 interval.
Well 372 topped the J1 reservoir as expected at minus 2,350.5 m true vertical depth. Preliminary evaluation of logs indicates 12.6 m of net pay with good reservoir properties and oil saturation throughout, exceeding predrill estimates.
About the Author
Alan Petzet
Chief Editor Exploration
Alan Petzet is Chief Editor-Exploration of Oil & Gas Journal in Houston. He is editor of the Weekly E&D Newsletter, emailed to OGJ subscribers, and a regular contributor to the OGJ Online subscriber website.
Petzet joined OGJ in 1981 after 13 years in the Tulsa World business-oil department. He was named OGJ Exploration Editor in 1990. A native of Tulsa, he has a BA in journalism from the University of Tulsa.