Thursday, March 21 15:36:44
Irish-based, Siberian-focussed oil and gas explorer, Petroneft, today said one of its new wells has started pumping oil while a previously drilled well is now pumping more oil than before after a workover.
Its Arbuzovskoye well 105, the sixth well in the current programme, has been successfully tested at an initial rate of 160 bopd with no visible water cut.
Petroneft added that pressure testing of two wells at Arbuzovskoye was carried out which indicated that reservoir pressures are in line with expectations based on volumes produced to date.
This confirmed that the rapid decline in production experienced in the Arbuzovskoye 102 well in January and February was due to a near-wellbore problem resulting from likely migration of fine grained materials that had plugged the perforations and was not due to problems with reservoir pressure. As a result an underbalanced re-perforation of the Arbuzovskoye 102 well was performed, which successfully removed the flow restrictions in the well and restored production to 380 bopd.
Following the success of this remediation procedure, other Arbuzovskoye wells are currently being examined with a view to re-perforating additional wells in the near term.
"Development work at Arbuzovskoye has been positive this past month. Not only has the pressure testing of two wells confirmed normal pressure decline for the field in line with production, but the workover of well 102 was successful. We will now implement the planned pressure maintenance programme on the field which will slow production decline and improve recoveries. A similar programme was implemented at Lineynoye field where we had positive results," said Dennis Francis, Chief Executive Officer of PetroNeft Resources plc.