The well flowed gas from a low permeability reservoir, which has significant implications for the development of the deeper gas zones in the LS36-1 gas field and the gas potential in the region in general.
The LS35-3-1 well is part of the rolling development exploration program Primeline and CNOOC are implementing.
The strategy is to find additional resources, which can be tied into the proposed production facility to be built at the LS 36-1 gas field, to augment future production.
The LS35-3-1 well was located to test three potential stacked channel sand reservoirs, Targets 1, 2 and 3, on the Western Flank of the West Lishui Basin over an expected range of 2100m – 2880m.
All three predicted reservoir targets had good bright spot and AVO characteristics similar to those seen on the LS36-1 gas field and all three sands were encountered in well LS35-3-1.
Achieving gas flow from the deeper low permeability reservoir is encouraging but the commercial potential of LS35-3-1 will depend on successful fracing and other optimization techniques.
Primeline and CNOOC plan to test such concepts early in the LS36-1 development drilling program.
In addition, the gas encountered in the LS35-3-1 exploration well could be commercial if these fracing techniques prove successful as the tie-in distance to the proposed LS36-1 platform is only about 14.5 km.
Primeline and CNOOC are continuing with the development of the LS36-1 gas field.
