HELP Hydrocarbon Exploration and Licensing Policy

Tamil Research Institution (TRI)
India's Hydrocarbon Outlook : 2015-16
lines. It has been observed that >80 % wells
are scrapping free after the job application.
Thermal EOR: ONGC has approved
implementation of Cyclic Steam Stimulation
(CSS) as a pilot project in Lanwa field. The
study envisaged incremental oil gain of 0.32
MMT in 8 years.
Chemical EOR: Way forward laboratory
study for Sanand Field polymer flood
project was carried out with increased
concentration of Polymer and ASP Flooding
to enhance Linear Core Displacement
Efficiency (LCDE) over existing Polymer
flood. The study envisages 15 % additional
LCDE over polymer flood. Simulation Study
of Alkali-Surfactant in K-VA was carried
out after successful encouraging results
in laboratory. Laboratory chemical EOR
studies in Northern part of North Kadi field
was carried out. Laboratory results are
encouraging with 12% additional LCDE with
Polymer Flood and 22% additional LCDE
with Alkali-Surfactant-Polymer (ASP) flood.
Preparation of Integrated Geo-cellular
Models (GCM): As an important initiative
to move from conventional map-based
Geological model to fine scale Geocellular
Model (GCM), IRS has taken lead
in preparing GCMs of major fields in recent past in order to address
issues of brownfield development by capturing reservoir heterogeneity,
improved water flooding efficiency, optimizing infill drilling, etc. During
FY 2015-16, GCM of Gandhar (GS-3A, 3B, 5C, 8 and 11), Limbodra, NBP
(Revisit), B-192 and G-1 were taken up.
8.2 CAIRN
8.2.1 IOR/EOR
Mangla EOR: One of the largest polymer flood implementation execution
was completed in Mangla Oil field (block RJ-ON-90/1). The surface
facilities and drilling activities were completed and polymer injection
was ramped up to the target 400,000 Barrels of polymerized injection
water per day during the 4 th quarter of the FY 2016. This is a significant
achievement for the block which will enhance the production from this
field. Incremental oil production in the range of ~20, 000 BOPD is being
produced from EOR which is as per expectations of the FDP. Drilling of the
FDP wells have been completed and few wells surface facilities hookup
is ongoing.
The Rajasthan block have similar field in the blocks such as Bhagyam
and Aishwariya which are good candidates for chemical EOR. Screening
and core flood studies have been completed and field implementation
development plans for converting these fields on water flood to chemical
EOR floods is under progress.
The Mangla ASP pilot was concluded after drilling core wells and the
recovery from the pilot area was ascertained. The results from the pilot
were very promising and further work is ongoing to prepare a development
plan based on the results of the pilot. Bhagyam and Aishwariya ASP
studies were also initiated.
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