The group of Messoyakhskoye fields (East Messoyakhskoye and West Messoyakhskoye fields) is located in the Tazovsky district of the Yamalo-Nenets Autonomous District , 340 km north of Novy Urengoy . The fields were discovered in the 1980s and are the northernmost of the developed onshore Russian oil fields [1] .
| Group of Messoyakha deposits | |
|---|---|
| A country |
|
| Region | Yamal-Nenets Autonomous Okrug |
| Opening year | 1983 year |
| Status | Industrial operation, additional exploration. |
| Subsoil user | JSC Messoyakhaneftegaz |
Content
History
The West Messoyakhskoye oil and gas field was discovered in 1983, the East Messoyakhskoye oil and gas condensate field in 1990 [2] . Geological exploration in the Tazovsky district on the territory of the East Messoyakhskoye and West Messoyakhskoye fields was carried out by the Zapolyarneftegazgeologiya association.
The group of fields got its name thanks to the Messoyakha River, which crosses both licensed areas.
Stocks
The C1 + C2 category reserves amount to 485 million tons of oil and gas condensate , as well as more than 194 billion cubic meters of natural and associated gas . The area of license areas is 7278.46 sq. km, the depth of the main reservoir is approximately 800 m.
Currently, additional exploration of the subsoil of licensed areas continues.
Management
Licenses for the exploration and development of a group of fields are held by Messoyakhaneftegas JSC, a joint venture of PJSC Gazprom Neft and PJSC NK Rosneft .
Mastering
Preparation for field development began in 2010.
In October 2012, in the framework of pilot industrial operations, the first oil was obtained from the East Messoyakhskoye oil and gas condensate field [3] .
In 2013, the concept of field development was formed, and key infrastructure facilities were designed.
In 2014, construction of the necessary infrastructure began, including a pressure oil pipeline with a capacity of 7 million tons of oil per year and a length of about 100 km from the East Messoyakhskoye field to the main oil pumping station of the Zapolyarye – Purpe trunk oil pipeline [4] .
Industrial exploitation of the East Messoyakhskoye field [5] began on September 21, 2016 [6] . The command to start the shipment of Messoyakha oil [7] to the transport system of the Arctic - Purpe was given via video link to Russian President Vladimir Putin [8] .
In 2018, Messoyakhaneftegaz produced 4.4 million tons of oil at the East Messoyakhskoye field [9] . Daily production according to the beginning of 2019 is 13.4 thousand tons.
Infrastructure
The deposits are located in the Arctic climatic zone, in a region with undeveloped infrastructure. By the time of the start of operation, cluster sites and infield infrastructure were equipped, large production facilities were built: the first stage of the central oil collection point (CPS), an oil pipeline, a gas turbine power station [10] with six gas turbine units with a capacity of 14 MW each [11] , an acceptance point . Now the second stage of the central processing center is under construction at the field, and a compressor station for the preparation of associated gas is being constructed as part of a project for the associated petroleum gas utilization. In 2018, a new social and residential complex was commissioned, which includes dormitories, a dining room, sports and fitness rooms.
When developing fields, special technologies are used that reduce the environmental impact [12] . Thus, in the framework of the project, the northernmost underwater pipeline crossings of the pipeline across the river were built using the directional drilling method. Using this method made it possible to preserve the natural landscape of the Indikyakha and Muduyyakha rivers, minimizing the technogenic impact on flora and fauna during pipeline construction [13] . To minimize the environmental impact, the pipeline is equipped with beam crossings over water barriers and special passages for animals in the places of deer migration. To preserve the permafrost layers, an elevated pipeline was laid with a thermal stabilization system for the supports; all objects of the field infrastructure are on piles.
Technology
In 2018, 140 wells were built at Messoyakha, including high-tech fishbones (fishbone in translation from English - “fish bone” [14] , a design with numerous branches from the horizontal wellbore) and multilateral wells. Some technologies for the development of hard-to-recover Arctic reserves used at the East Messoyakhskoye field have no analogues in Russia [15] . So, in 2017, the first well in the country with five cased shafts in terms of TAML-3 complexity and a horizontal well with two pilot and two side shafts with a high complexity index (7.03) were built here.
One of the important activities of Messoyakhaneftegaz in 2018 was the development of deep horizons of the field. The development of reserves located at a depth of 2.5 to 3.3 thousand meters is complicated by the small thickness of the productive layers and high reservoir pressure.
Today, the company is actively developing open deposits, developing its resource base and promptly involving new sites in the development [16] . In 2018, following the implementation of a comprehensive program of geological testing, a gas and oil deposit was discovered in West Messoyakha, with geological reserves estimated at 85 million tons and recoverable reserves at 26 million tons of oil. This discovery confirms the prospects and economic efficiency of the industrial development of the West Messoyakha license area.
Notes
- ↑ Messoyah project
- ↑ Yamal: Encyclopedia of the Yamalo-Nenets Autonomous Okrug. T.1: “A-Z”. - Tyumen: Publishing house Tyum. state University, 2006 .-- S. 200
- ↑ The first oil was launched at the Messoyakha project.
- ↑ The construction of the oil pipeline from Messoyakha to the Polar Region-Purpe (Link unavailable) has begun . Date of treatment April 27, 2015. Archived February 17, 2017.
- ↑ The industrial exploitation of the northernmost of the developed oil fields in Russia . www.gazprom-neft.ru. Date of appeal September 27, 2016.
- ↑ Launch of the East Messoyakhskoye field
- ↑ President launched the operation of the Vostochno-Messoyakhskoye field
- ↑ Putin: East Messoyakhskoye field will increase the stability of the oil market
- ↑ Oil production on East Messoyakh for the year increased by 30% and amounted to 4.4 million tons
- ↑ Preparation for the construction of infrastructure began at the Messoyakha group of fields
- ↑ The construction of the gas turbine power station at the East Messoyakhskoye field has begun
- ↑ Resource-saving equipment is being introduced at the East Messoyakhskoye field
- ↑ The northernmost underwater crossing of the pipeline across the river Was built on Gydan (inaccessible link) . Date of treatment April 27, 2015. Archived February 17, 2017.
- ↑ Messoyakhaneftegaz drilled wells of a new design
- ↑ Development of Messoyakha: how oil is extracted at the northernmost mainland field in Russia
- ↑ Messoyaha: an oil city on the edge of the earth