Mubadala wraps up Thai drilling campaign with another duster

UAE-based Mubadala Petroleum has completed its exploration drilling campaign at the G1/48 Manora oil field located in the Northern Gulf of Thailand with disappointing results. 

Valaris JU-115, formerly Ensco 115 jack-up rig and formerly Atwood Orca

Mubadala is the operator of the G1/48 license and Tap Oil is its partner with a 30% working interest.

Manora JV partners approved a three-well exploration drilling program, plus a contingent appraisal sidetrack well, at the G1/48 at the end of October 2019.

The first well, the Inthanin-1, spudded on November 20, 2019, and reached a total depth of 2528m on November 24, 2019. No significant hydrocarbon shows were encountered at the first well.

Following the Inthanin-1 well, the Valaris JU-115 jack-up drilling rig moved to drill the second well in the campaign. The Yothaka East-1 well spudded on November 28 and reached a total measured depth of 3,367m on December 3.

Due to mixed results from the second well, Mubadala decided not to drill the third exploration well in the campaign, but instead to drill an appraisal well via a side track from Yothaka East.


Weak shows at Yothaka East appraisal


In an update on Friday, Tap Oil said that operations on the sidetrack of the Yothaka East-2 appraisal well from the Yothaka East -1 well bore started on December 5 and the well reached a total measured depth of 3881m on December 11, 2019.

The primary objective 600 series sands, that were interpreted to be oil bearing in Yothaka East -1 well located 1 km to the south, were intersected within 4m of pre-drill prognosed depths and approximately 60 m down dip of the discovery well, Yothaka-East-1.

According to Tap, weak shows were encountered while drilling and logs indicated the sands while better developed, as prognosed, are water bearing in the Yothaka-East-2 location. Logs indicated approximately 4m of net (water bearing) sand in the 600 series and, pending further petrophysical data analysis, a possible oil-water contact is present in the equivalent sand to the main pay sand in Yothaka East-1.

The well is currently being plugged and abandoned. Integrated analysis of the results of the two wells and the 3D seismic data tied into Manora is ongoing to determine the volumetric and economic significance of the 600 series reservoirs in the Yothaka East structure.

Offshore Energy Today Staff

Spotted a typo? Have something more to add to the story? Maybe a nice photo? Contact our editorial team via email.

Also, if you’re interested in showcasing your company, product or technology on Offshore Energy Today, please contact us via our advertising form where you can also see our media kit.

Share this article

Follow Offshore Energy Today


<< Feb 2020 >>
27 28 29 30 31 1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 1

Africa Oil Week 2020

For over 25 years Africa Oil Week has been the meeting place for Africa’s most senior E&P stakeholders.

read more >

CERAWeek 2020

 Each year, CERA clients gathered for a few days in Houston…

read more >

Offshore Technology Conference (OTC) 2020

The Offshore Technology Conference (OTC) showcases leading-edge technology for offshore drilling, exploration…

read more >


The development of consensus standards is one of API’s oldest and most successful programs.

read more >


Looking to fill a job opening?

By advertising your job here, on the homepage of, you'll reach countless professionals in the sector. For more information, click below...


Looking to fill a job opening?

By advertising your job here, on the homepage of, you'll reach countless professionals in the sector. For more information, click below...