/ / Vyngapurovskoye deposit: where is and what stocks?

Vyngapurovskoye field: where is and what stocks?

The Vyngapurovskoye deposit brings ourthe country is of great benefit. Today we will talk about it in more detail, we will find out how rich it is and what role it plays for the country's economy. It is worth noting that Russia is very rich in various minerals, on which economic well-being largely depends.

Vyngapurovskoye deposit

History

Vyngapurovskoye oil and gas fieldis located in the Yamal-Nenets Autonomous District, which is located 20 km south-west of the town of Tarko-Sale. According to the administrative division, the deposit is located in the Tyumen region in the Yamal-Nenets Autonomous District. A little more than 100 km from the deposit is the city of Noyabrsk. Directly near the deposit is a settlement with the same name.

The deposit was discovered in 1968. Initially, it was considered to be gas, but a number of geological studies that were regularly carried out on its territory showed that it is possible to extract oil there. Since that moment, the Vyngapurovskoye deposit has become a gas-oil field. In industrial operation it was introduced only in 1982 because of preparatory and research work.

vyngapurovskoye deposit

Characteristic

The deposit belongs to the West Siberianoil and gas province. It is confined to the local submeridional uplift, which measures 15x25 km. Lifting complicates the central part of the shaft and has a raising amplitude of 200 m. Deposits of Lower Cretaceous and Jurassic are considered industrial-oil-bearing. Geographically, it is a lowland with frequent forest areas. The presence of oil and gas deposits in the Lower Cretaceous layers was discovered only in 1978. It should be noted that in the territory there was no possible seismic activity.

To date, the deposit has 27productive layers. Of which 24 are used for oil production, including 4 gas-oil and oil-and-gas condensate layers. There are three gas layers.

Geology

Since the start-up of the deposit andup to today it has been extracted about 24 million tons of oil. This in turn equals 44% of the required number of recoverable reserves each year with a real oil recovery factor of 0.21%.

The deposit has many layers and a complex structure. The oil-bearing floor is approximately 1600 m. It covers the thickness of rocks of Middle Jurassic and Upper Cretaceous.

Vyngapur gas field

Gazpromneft

Vyngapurovskoe deposit belongs to the companyGazpromneft. It is one of the largest among the company's holdings. According to the data for 2008, production amounted to more than 3 million tons. At the same time, 35% of the project fund is still undeveloped reserves. The ground infrastructure includes a pre-treatment shop for oil, 5 pumping booster stations and 5 pumping station stations. The total length of pipelines to collect oil is about 600 km.

While setting up the field, the research institute "Giprotyumenneftegaz" was engaged in designing.

To date, gas reserves are 80 billion cubic meters.

Methods at the Vyngapur gas field

Current state

For today, the deposit is excellentThe developed infrastructure for the extraction of gas and oil for industrial purposes. This allows you to work on the already identified areas of deposits and in the shortest possible time to open a new site with prospects for development. Oil is actively extracted from the Jurassic deposits and the neocom, as well as gas from the Seomann deposits. Very dense network of threads of gas and oil pipelines, through which the transfer of minerals. The gas pipeline Urengoy-Vyngapur-Chelyabinsk-Novopolotsk is laid on the territory of the field. Only a few kilometers from the field there is a main pipeline oil pipeline Kholmogorskoe-Fedorovskoye-Surgut-Omsk. The distance from Surgut to Vyngapurovsky deposit is approximately 400 km. There is a separate connection to the highway.

Main area of ​​work

At the moment, the layers of BV1 are actively developing,BV8 (south), BV8. The last layer is the main direction of work. Also, specialists are engaged in exploratory and evaluation work in single wells.

The main resources of the BV8 layer are located onnorthern part of the territory. Regular reduction of beds occurs from the east and north-west directions. The work is carried out until the clay reservoir is fully replaced. The nature of the distribution of reservoirs in this formation is locally lenticular. Also, the researchers found that from the north-eastern part, the formation is expanding and its wealth is covered with oil. The main mining area is heavily fragmented. It is also characterized by a lenticular shape, a gas cap in the region of uplifts, clayey rocks in the western zone and inconsistency of sandy-clay bodies.

The development of layers is carried out using a 9-point system, which has a grid density of 25 hectares / well. For the main formation BV8, a 7-toothen system is used.

geological section of the Vyngapur deposit

Characteristics of plots

According to the conditionality of stocks and theirgeological location, the BV8 layer is divided into several sections: northern, main, southern, western and 50p. The site in the north is developed by specialists using a 3-row system. The territory is also subjected to additional drilling with a tightening row. The net density used is 14.3 ha / well. The plot in the central part is developed using a 9-point system using a grid density of 12 hectares / well. In the near future, a transition to a 5-point system is planned. The southern and western sections are also developed using a 9-point system, but the grid density here reaches 25 hectares / well. For well development 50r. Focal and near-water flooding with a density of 12 hectares / well is used.

The strata BV5, SE1 are still being developed by single wells, therefore they are in pilot production.

Methods of GDI at Vyngapurovskoye gas field

Since 1984, active water injection has beenlayers. A total of 56249.9 thousand m3 were pumped. Thanks to the use of modern methods of increasing oil recovery, it was possible to produce an additional 5,000 tons of oil. In total, during investigations of GDI, four deposits in the Upper Jurassic, Neocomian and Cenomanian were identified. At a depth of 985 m, a massive reservoir deposit was installed in the cenomanian, whose height is 90 m, and the GVK is 945 m.

surgut to the Vyngapur deposit

Geological section of Vyngapurovskyfield has a gap. At the moment it allows to extract oil by more intensive methods with the help of the development of the surrounding seams. A single hydrodynamic system was formed in the reservoir, which brought a number of advantages: it became possible to increase the rate of fossil extraction and improve oil recovery.

Summing up the article, I want to say thatVyngapurovskoye gas field is one of the largest. Experts advise to carry out a number of measures to intensify the extraction of minerals. This includes waterflooding, which should be performed by hydrodynamic methods, drilling horizontal wells, processing of injected wells, works on the isolation and repair of the deposit, deepening and perforating methods, studies of the water saturation intervals, the normalization of the faces, the use of physical and chemical methods. As you can see, there are opportunities to increase the efficiency of the field, the main thing is that there should be a desire. But with the current level of service, the Vyngapurovskoye deposit remains one of the most powerful.

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