GSPC will have KG#15 test results before Christmas

Vol 10, PW 15 (16 Nov 06) Exploration & Production
     

GSPC plans to begin testing well KG#15 sometime in mid-November.

A lot of zones are available for testing but GSPC plans to carry out drill stem tests at five zones between 4400 metres and 5745 metres, says an industry source. If everything goes to plan, the tests should be completed within 45 days and certainly before Christmas.

Sometime last week, GSPC was to receive from Schlumberger the complete Modular Dynamic Test results of four zones in the upper section between 2700 metres and 4900 metres. Towards the end of November, GSPC expects to have the complete analyses of the cores taken from KG#15.

These cores are being analysed in Australia, we hear. GSPC is also conscious of the concerns being raised in industry circles over how to control the sand flows.

GSPC has carried out extensive coring, says a source. They plan to use these cores to physically understand how the sand flows take place.

All this data will then be integrated before designing the well completion. Sand flows came up as an issue during testing one of the zones in KG#8, the blocks first discovery well.

Testing was done using mud, we hear. The mud carried the sand above and cut everything and people had a narrow escape.

Subsequent tests have used brine instead of mud and there has been no problem. More challenging for GSPC than controlling sand flows is to develop metallurgy that withstands high temperatures and high pressures.

A consultant has already been hired to come up with a solution. GSPC is encouraged by ExxonMobils experience at a Mexican shallow offshore exploration project, which is encountering downhole temperature of around 550 degrees Fahrenheit and pressure of about 23,000-psi.

In contrast, GSPCs KG wells are seeing temperatures of about 420 degrees Fahrenheit and 12,000-psi pressure. It is not impossible to develop the appropriate metallurgy, says a source.