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LGO lauds 1,000 bodp at Trinidad onshore plays

24th November 2014

LGO has announced that well GY-667, the fourth well of the current 30 well development programme, has been successfully recompleted in the upper C-sand reservoir, and that production levels onshore Trinidad have now exceeded 1,000 bopd for the first time

LGO lauds 1,000 bodp at Trinidad onshore plays
The total Trinidad production has now exceeded 1,000 barrels of oil for the first time with further significant increases expected at year end with further well optimisation work on Pad-2 and the completions of wells GY-669 to 671 on Pad-3

The well is currently flowing under its own pressure at a stabilised rate of 350 barrels of oil per day (bopd) of 42 degree API oil, without water or sand.

An interval of 186 feet of net pay was perforated using tubing conveyed guns and a calculated initial open-hole flow rate of 1,030 bopd was observed.  This rate represents the best well drilled and completed to date from the current development programme.

"Our decision to recomplete the 667 well at the more extensive upper C-sand level has shown very positive results with our Trinidad production now over the 1,000 bopd target we had set for end 2014,” said Neil Ritson, LGO's chief executive.

“A number of wells can still be further optimised and three new wells are expected to be put on production before year end."

"Oil production rates from the Goudron wells are not at their maximum potential in order to preserve the oil bearing formations from being over produced.  If oil is extracted too rapidly this can lead to potential formation damage and reduced longer term production. The Goudron Field has never had wells that have produced at these levels and we are mindful to protecting the long term production potential of the field."

The upper C-sand (formally termed the Gros Morne) in GY-667 contains an individual sandstone pay unit approximately 130 feet thick which was considered to offer the best production potential in the well.

After flowing the well for approximately 24 hours at rates up to 580 bopd through a 10/32-inch choke at a well head flowing pressure of over 600 psi, the choke size was reduced to 8/32-inch with the well now flowing at a steady rate of 350 bopd of clean dry oil at a well head flowing pressure of 540 psi.

With only 17 hours of flow testing on the recompleted GY-667 and with two wells still not fully optimised (GY-666 and GY-668), the combined production of the wells GY-665 to 668 (Pad-2) has increased to 580 bopd based on the last day for which data is available.  All new wells continue on restricted flow rates to manage long term reservoir potential.

The total Trinidad production has now exceeded 1,000 barrels of oil for the first time with further significant increases expected at year end with further well optimisation work on Pad-2 and the completions of wells GY-669 to 671 on Pad-3.

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