2010 Annual Report - TPAO

at the maximum level, TPAO has continued its
domestic reserve development and production
activities in 2010. Production problems in heavy
reservoir require special technical applications.
To prevent the decline in production and to
evaluate the current production potential, several
reservoir studies were performed.
Batı Raman Field Enhanced Oil
Recovery Project
Since the carbon dioxide (CO 2) injection start-up
in 1986 in B.Raman, cumulative injection into the
field has reached 9.6 billion m 3 in the scope of
Batı Raman Field Enhanced Oil Project. In order
to sustain this amount of injection, 7.2 billion m 3
CO 2 was produced from Dodan Field. By the end
of 2010, Batı Raman's recovered cumulative oil
reserves were 103.8 million barrels, 67.9 million
barrels of which is the additional oil coming from
CO 2 injection.
In 2010, 421.9 million m 3 CO 2 was injected,
286.2 million m 3 of this amount was re-produced
and 262 million m 3 of this produced gas was reinjected
into the reservoir to be re-utilized.
Water injection aimed improving CO 2 sweep
efficiency continued in 2010, in total 235,758
barrels of water alternating with gas was injected
into 13 different wells. NaOH augmented water
injection was begun from 2 injectors in order
to see the effect of chemicals to increase the
efficiency of Water Alternating Gas (WAG)
application. 77 thousand barrels of chemically
enriched water was injected. In addition to this,
drilling operations of 18 new vertical wells were
completed.
Raman Field Production
Enhancement Project
Raman Field production enhancement project
was started in 1994 and operations to increase oil
production have been continuing periodically by
the end of 2010. 16.2 million barrels of additional
oil was produced by means of this project. 1
new well was drilled in the field to increase oil
production in 2010 and well number increased
to 241.
As results of pilot polymer gel injection (MARCIT)
done in 7 wells to reduce water-cut values in
2007 that were satisfying, gel injection operations
were done in 57 wells throughout the year.
Approximately 515 thousand barrels of extra oil
production was obtained from these 57 wells.
Gross production rates of 22 wells were
changed in 2010. 3 abandoned wells were put
into production after gel operation. As a result,
approximately 25 thousand barrels of additional
oil were produced by these operations in 2010.
Garzan Water Injection Project
Garzan Field, which has 300 million barrels oil in
place, is one of the biggest oil fields in Türkiye.
Within the scheme of Garzan Water Injection
Project, started in 1960 and restarted in 1992
after a long halt since 1983, cumulative injection
through 11 wells reached to 68 million barrels in
Garzan-B field by the end of 2010, where annual
injection was 1.5 million barrels.
In Garzan-C field, cumulative water injection
through 4 wells reached to 46.7 million barrels
where total annual injection was 700 thousand
barrels.
Within the scope of Garzan Water Injection
Project, 28.7 million barrels of additional oil
in Garzan-B Field and 13.1 million barrels in
Garzan-C Field were produced by the end of
2010.
Batı Kozluca Field Water Alternating Gas
Injection (WAG) Project
CO 2/WAG feasibility in Batı Kozluca Field
was investigated through a reservoir study
and promising results led investments for the
application. CO2 injection and water injection
have continued in 2010.
By the end of 2010, cumulative gas injection
reached to 5.86 billion scf and cumulative water
injection reached to 800 thousand barrels. The
injection process is still underway. In order to
expand the application of CO2 injection, additional
12 wells were drilled at the B.Kozluca Field.
Domestic Natural Gas Production
In 2010, TPAO’s natural gas production was
260.7 million sm 3 . 94% of the total natural gas
production is from Thrace Region, 5% is from
Batman Region and 1% is from Adıyaman
Region. The oil equivalent of the gas output is
1.5 million barrels. Thus, TPAO’s cumulative
hydrocarbon production reached to 14.2 million
barrels by the end of 2010.
Kuzey Marmara and Değirmenköy Fields
Underground Natural Gas Storage Facilities
Capacity Enhancemend Project
In Kuzey Marmara and Değirmenköy Fields
Underground Natural Gas Storage Project,
commercial activity was started on April 13 th ,
2007. Injection and withdrawal operations have
been continuing.
Gas demand of our country tends to increase,
therefore new storage facilities are urgently
required.
For this purpose, TPAO is planning to increase
the daily withdrawal capacity of existing facilities
up to 50 million sm 3 /day and storage capacity to
approximately 3 billion sm 3 within 3 phases by
the end of 2016.
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