The company, in a statement, told investors that it has now successfully installed and cemented new casing through the build section of the well.
It noted that the casing prevents fluid incursion from the Upper Eocene layers above the targeted Middle Eocene zone.
"The successful cementing of WR-38Z's seven inch casing is a significant step in the sidetracking of the well,” said Paul Haywood, Block Energy chief executive.
“Our drilling of well WR-16aZ provided a wealth of data about the field's subsurface that has allowed us to optimise the completion design of WR-38Z, knowledge we will be able to apply to all the West Rustavi wells we subsequently drill.”
Block highlighted that WR-38Z is its second fully-funded well in a multi-well programme which is designed to realise the field’s full potential.
Three further sidetracks are also planned at West Rustavi along with programmes to test a known gas discovery and also a separate new gas well.
Block also announced a number of new appointments to the team adding Steve Smith and Jim Lee, a pair of highly experienced geologists, plus Georgian industry veteran Mamuka Kharabadze and well operations specialist Kevin VanBuskirk
"We are delighted to welcome Jim, Steve, Mamuka and Kevin to the Block team,” Haywood added.
“They bring skill, versatility and deep industry experience that further strengthens our operations capability. Block Energy comprises a range of international talents dedicated to ensuring the success of our multi-well programme."