It is believed that the Cenomanian gas in Urengoy field belongs to the category of low-mature gas.

最后认为，乌连戈伊气田塞诺曼阶天然气属于低熟气的范畴。

youdao

Non-mature gas and oil mean those whose byried depth is more shallow than the threshold depth of the sedementary organic matter which is transformed into the gas and oil.

未成熟油气是指那些埋藏深度浅于成熟门限深度的沉积有机质生成的油气。

youdao

It is also selling some mature oil and gas fields in the North Sea and Nigeria.

该公司还将出售在北海和尼日利亚的部分成熟油气田。

youdao

Messrs Paterson and Gordon also raise concerns that the transfer from Whitehall to Scotland of regulation, licensing, inspection and safety is a major undertaking, particularly in a mature region for oil and gas, with ageing equipment, hard-to-reach reserves and a looming boom in decommissioning.

BBC: Scottish independence: energy's alternating currents

On page 15 of its presentation, it describes the UltraDeep Gas Play as new play in a mature basin.

FORBES: A Little Bit Louder Now, Chevron Starts To Shout About Davy Jones And The Ultra Deep

By contrast, coal- and natural gas-fired generation systems are fairly mature technologies.

FORBES: Clean Energy Innovation: An Unstoppable and Volatile Force