“A DUAL MONOBORE COMPLETION” IN VICO INDONESIA : A NEW COMPLETION SOLUTION FOR MULTI LAYER RESERVOIRS IN MATURE GAS FIELD

PROCEEDINGS JOINT CONVENTION BALI 2007
The 32^nd HAGI, The 36^th IAGI, and The 29^th IATMI Annual Conference and Exhibition

“A DUAL MONOBORE COMPLETION” IN VICO INDONESIA :
A NEW COMPLETION SOLUTION FOR MULTI LAYER RESERVOIRS IN MATURE
GAS FIELD

Sumaryanto, Budi Srisantoso
Base Management Team VICO Indonesia
ABSTRACT

VICO Indonesia is a mature field that has been produced for about 30 years; the reservoir management challenge is to optimize the well completion in order to have good commercial rate and optimizing reserves recovery from even marginal reservoir.

The completion called “Dual Monobore” has just been implemented in VICO Indonesia, as a new completion to optimize both gas production and reserves recovery from multi layer gas reservoirs. This completion still uses monobore completion concepts, but now it has the flexibility to share the production between depletion drive reservoir and water drive reservoir in 2 different strings, allow adding or isolating the individual zone and smaller tubing size to avoid liquid loaded problem. Up to date, more than 15 (fifteen) wells has been drilled and completed as dual 3-1/2” monobore.

This paper will share the well performance, advantages and some operational completion practices improvement to reduce problem associated with dual monobore completion in multi layer reservoirs and mature gas field.