development of dsj field

8/11/2019 Development of DSJ Field

1/22

Development of DSJ

FieldDinesh Soni

Suman Saurabh

Jitendra Vaish


2/22

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.


3/22

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.


4/22

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


5/22

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


6/22

Field Development Plan


7/22

Surface facilities Installation Plan


8/22

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


9/22

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.???????


10/22

Gas Marketing


11/22

Economic Sensitivity Analysis of the

Project


12/22

Assessment of Environmental Impact of

the Development of DSJ Gas Field


13/22

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.


14/22

Future Ahead

Gas to Liquid (GTL) Plant to be commissioned.

Setting up fertilizer industry with the help of government in next 5-10 years.


15/22

References


16/22

QUOTE- UNQUOTE


17/22

Thank You


18/22


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21/22

Drill stem test in appraisal wells

Tariffing arrangements for surface facilities


22/22

Geological Age of Sands

Gas Composition

Sprcific gravity

Calorific value

Spare wells

30% of AOFP

development of dsj field

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