THE PROSPECT OF GAS PRODUCTION AND SPECIFIC FEATURES OF DEVELOPMENT OF THE YAMAL PENINSULA

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1 THE PROSPECT OF GAS PRODUCTION AND SPECIFIC FEATURES OF DEVELOPMENT OF THE YAMAL PENINSULA A. Ananenkov, V. Podjuk, R.Ter-Sarkisov, P.Tsybulsky (GAZPROM, VNIIGAZ)

2 Yamal climate. Average year temperature С. Average winter temperature С. Winter duration 240 days. Average summer temperature С. Summer duration 67 days. Permafrost thickness m, Temperature -6 0 С. Weight ice content: from 20 to 80%.

3 Onshore Offshore Yamal region Structure of initial gas resources, Bcm Д2 - Ä2 -С3+Д1 - Ñ3+Ä1 -С2 - Ñ2 -С1 - Ñ

4 The groups of Yamal gas fields Bovanenkovo ( 1 ) (Bovanenkovo, Kharasavei, Kruzenshtern) Northen (Tambei)) ( 2 ) Southern ( 3 ) Offshore ( 4 )

5 Strategy of Yamal gas fields development was founded in Complex commercial development program for Yamal Peninsula and the adjacent offshore areas. This Program was developed by VNIIGAZ on the instructions of Gazprom in under leading of prof. G.E.Odisharia and prof. R.M.Ter-Sarkisov Sarkisov. ОАО «Газпром» ОАО «Газпром» ВНИИГАЗ ВНИИГАЗ Программа Программа комплек сног о комплек сног о промышленног о освоения промышленног о освоения месторождений полуострова месторождений полуострова Ямал и прилегающег о шельфа Ямал и прилегающег о шельфа Program include parts on: Geology Development Transportation Economy Ecology Work program on short-term term and long-term perspective.

Surface stability Relative stable: Activating of cryogenic processes is improbable The surface is not deformed The geologic environment is stable Unstable:

6 Surface stability Relative stable: Activating of cryogenic processes is improbable The surface is not deformed The geologic environment is stable Unstable: Activating of cryogenic processes is probable The surface may be deformed Irreversible variations of the geologic environment are probable relative stable unstable

7 Probable production of Yamal gas fields groups Groups Gas resources, Tcm Probable production, Bcm 1 Bovanenkovo 8, Northen (Tambei) 3, Southern 1,4 30

8 Probable gas production forecast from Yamal gas fields production, Bcm per year Kruzenshtern Kharasavei (jurassic) Tambei group 250 Bcm 200 Bovanenkovo (jurassic) 150 Kharasavei (senoman+apt) 100 Bovanenkovo (senoman+apt) 50 0 Годы

9 Bovanenkovo gas field Geological section Geological section ПК Ю Ю ПК ПК ХМ ХМ БЯ БЯ БЯ Ю Ю Ю Ю Ю Р С К А Я М Е Л О В А Я НИЖНИЙ СРЕДНИЙ ВЕРХ JURASSIC БЕРРИАС-ГОТЕРИВ Б А CRETACEOUS Р Р Е М А П Т Н И Ж Н И Й В Е Р Х Н И Й А Л Ь Б СЕНОМАН А Х С К А Я ТАНОПЧИНСКАЯ МАРРЕСАЛПНИЙ СИСТЕМА ОТДЕЛ ЯРУС СВИТА

Ice content > 20% and thickness < 25 meters. Well with insulated tubing.

10 Bovanenkovo gas field Well construction and well clusters location Ice content < 20% or from 20 to 40% and thickness < meters. Well without insulated tubing. Ice content > 20% and thickness < 25 meters. Well with insulated tubing. Ice content > 40% and thickness > 25 meters. a) Well with insulated tubing and special refrigerants. b) Move the well clusters

Yamal environmen After After 18 18 years years Special programs and After After 27 27

11 Yamal environmen After After years years Special programs and After After years years models were used for evaluation of reservoir development impact on environmen

12 Yamal gas fields Approaches to the unique reserves of Yamal gas fields are formed with GAZPROM and VNIIGAZ experts experience on the field development in similar conditions. However here we do not talk about a simple duplication of already done. Our experience allowed to define in the right way: Approaches to exploration of the new gas bearing region commencing development from major fields which can reliably provide the loading of new system of gas mains; Strategy of gas production development use of the newly constructed infrastructure for further additional exploration and development of new fields; Ways to reduce environmental impact upon Yamal location of wells cluster, equipped by thermal-insulation pipes, and construction of the site structures on the preliminarily selected land plots with minimal ice; Directions of increasing reliability of gas production and transmission preliminarily testing of all the new technologies and equipment in real climatic and site conditions.

13 Yamal gas fields The main problems of the Yamal resource commercial development are related to environmental protection. To tackle this problem JSC Gazprom has worked out an Advanced research program unprecedented by scale and volume of financing. The program is intended for developing environmentally sound technologies, minimizing environmental impacts and preserving and developing unique culture, ethnos and traditional forms of activity of local nations. The results obtained made it possible to conclude that the commercial development of Yamal gas fields, including the construction of gas mains and railway, will not lead to irreversible ible ecological consequences on the peninsula

14 THANK YOU FOR ATTENTION

Bovanenkovo Yamal Major Field

Bovanenkovo Yamal Major Field Bovanenkovo field is a base field of the Yamal peninsula at present time. All the scientific and technological tasks of Yamal fields development were solved by VNIIGAZ. Explored