With the global emphasis on low-carbon environmental protection, natural gas plays an increasingly important role in the energy sector. However, the distribution of global natural gas reserves is extremely uneven. Today, let's take a look at the world's largest gas field, the North-Nampas gas field.
The North-Nampas gas field is located in the Persian Gulf in western Asia and is jointly owned by Iran and Qatar. The total area of the gas field is about 9,700 square kilometers, of which 3,700 square kilometers in the north are located in Iranian waters and are called the Nampas gas field; The southern 6000 square kilometers are located in Qatari waters and are known as the Northern Gas Field.
Reservoir characteristics
The North-Nampas gas field consists of four separate reservoirs of the Permian and Triassic periods, numbered K1, K2, K3 and K4 respectively. It is part of the so-called n-type Qatar dome structure, with the northern and northeastern boundaries, the Zagros Fold Belt.
Reserve characteristics
The North-Nampas gas field has a total reserve of 51 trillion cubic meters, in addition to about 50 billion barrels of condensate. The total reserves are equivalent to about 360 billion barrels (50 billion tons) of oil. It is the largest oil and gas field in the world。That's more than double the world's largest oil field, the Garhwal field, with total reserves of 170 billion (23 billion tonnes)**. is the total reserves of 135 trillion cubic meters (10.7 billion tons) of the original first large gas fieldAbout 5 times the size of the Urengoy gas field. A real giant oil and gas field, invincible existence.
The recovery rate of the North-Nampas gas field is about 70%, which is equivalent to 36 trillion cubic meters of extracted natural gas, accounting for about 19% of the world's total recoverable natural gas reserves. The estimated content of the Iranian part is 142 trillion cubic meters, of which 10 can be recovered5 trillion cubic meters, which is 36% of Iran's total known recoverable reserves and 56%。The Qatar portion is estimated to contain 255. Recoverable natural gas, which is 99% of Qatar's known natural gas reserves and 14% of the world's known natural gas reserves. The Iranian portion also contains 18 billion barrels of condensate, with an estimated 9 billion barrels recoverable. The Qatar sector has an estimated 32 billion barrels of condensate, with at least 10 billion barrels recoverable.
Development History
The Northern Gas Field was discovered in 1971 and put into production in 1989. In 2005, Qatar decided to slow down the pace of extraction, fearing that mining too fast would affect the sustainability of the gas field. Rumor has it that some wells are left without gas after drilling, so a more in-depth study of the structure and reserves of the gas field is needed. Since 2012, the rate of extraction has accelerated, which has made Qatar the world's largest exporter of LNG. There is no specific production data yet. In 2022, Qatar's total LNG production capacity was about 80 million tons (about 100 billion cubic meters), most of which was provided by the Northern Gas Field. It is estimated that the production of the northern gas field is about 100 billion cubic meters.
The Nampas gas field was discovered by the National Iranian Oil Company in 1990, but development has been slow. In 2017, PetroChina signed a cooperative development agreement with Iran, with Total and PetroChina holding % and 19., respectively9% of the shares. However, due to the impact of US sanctions on Iran, Total and PetroChina withdrew from the project, and Iran began to develop it independently. In 2023, the South Pars gas field will produce 6300 million cubic meters, with an annual output of more than 200 billion cubic meters, far exceeding the northern gas field.
Partial photo of the Nampas gas field.
In January 2023, Sinopec signed a long-term LNG purchase and sale agreement with Qatar. Qatar will supply 4 million tonnes of LNG per year to Sinopec** for a period of 27 years. The LNG for the agreement will be mainly sourced from the northern gas field.
A partial photo of the northern gas field in Qatar.
It is hoped that the North-Nampas gas field will be able to release its true potential as soon as possible and contribute sufficient energy to the world. List of high-quality authors