development of dsj field
TRANSCRIPT
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Development of DSJ
FieldDinesh Soni
Suman Saurabh
Jitendra Vaish
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Seismic Structure
3-D seismic had been done extensively in the potential area.
Processing of data showed an anticlinal structure containing large volume of
gas.
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Exploratory Drilling and Well Testing
5 exploratory wells, DSJW-A, DSJW-B, DSJW-C, DSJW-D and DSJW-E had beendrilled based on anticlinal structure at a difference of 5 kms from each other.
Well # DSJW-C was a discovery. It showed gas coming from two zones DSJ-1and DSJ-2.
Initial reservoir studies had been done extensively in the well. After well had
been cleaned up, isochronal test and reservoir limit test had been done in
both zones, along with Subsurface Sampling, SBHP and FBHP Survey. A core had also been cut in zone -1 for doing core analysis in the laboratory.
Zone -1 had been perforated in 2443-2448.5 meter
Zone-2 had been perforated in 2206-2210 meter.
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Results of Open Hole Logging, Initial
Reservoir Studies and Core Analysis in Zone-1
and Zone-2 (Hypothetical Data)Parameters Zone-1 Zone-2
Avg. ReservoirPressure(psi)
4700 4100
AOFP ~7-8 ~7-8
Permeability 320 mD 355 mD
Skin .24 .068
Drive Mechanism Water Drive Depletion Drive
Radius of Investigation
Drainage Area 630 acres 625 acres
Porosity .19 .23
Wettability Water Wet Water Wet
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Reserve Estimation
Zone -1
Reserves : 36 BCM (PD: 20 % PB:70 % PS: 10 %), RF ~0.5
Zone-2
Reserves: 24 BCM (PD: 25 % PB: 60% PS: 15 %) , RF~.75
Reserve Estimation has been done by Volumetrics Method
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Field Development Plan
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Surface facilities Installation Plan
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Inlet
Separation
Gas
Sweetening
Dehydration
Acid Gas
Injection
Condensate
Stabilization
Dew point
Control andCompression
gas
from
wells
C2-C5+
light gases
C5+
natural g
to pipelin
acid gas
Simplified Flow Chart of Surface Gas Processing Plan
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Transportation and Gas Storage Plan
It is planned that transportation of produced natural gas after processing willbe done by different ways depending upon the customer variants:
Pipeline Transportation
CNG Transportation
LNG Transportation
As per the climate, demand of gas will be more in winter, a provision of
underground gas storage has also been planned.???????
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Gas Marketing
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Economic Sensitivity Analysis of the
Project
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Assessment of Environmental Impact of
the Development of DSJ Gas Field
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CSIR Activities
Employment to the local nationals.
Building schools for the kids for primary as well as senior secondary
education.
Setting up of a world class Petroleum Institute is planned which will deliverdegree in Petroleum Engineering at both undergrad and postgrad level.
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Future Ahead
Gas to Liquid (GTL) Plant to be commissioned.
Setting up fertilizer industry with the help of government in next 5-10 years.
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References
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QUOTE- UNQUOTE
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Thank You
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Drill stem test in appraisal wells
Tariffing arrangements for surface facilities
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Geological Age of Sands
Gas Composition
Sprcific gravity
Calorific value
Spare wells
30% of AOFP