Daqing Oilfield 1
One of the few super-large continental sandstone oil fields in the world. Located in the west of Heilongjiang Province, in the middle of Songnen Plain, between Harbin and Qiqihar. The length of the oilfield from north to south is 140km, and the width from east to west is 70km, with a total area of 5470km.
2. Changqing Oilfield
Located in Ordos basin, it is a typical international oil and gas resource with low permeability, low pressure and low abundance. A series of scientific and technological breakthroughs have been made, and scientific and technological innovations have been continuously implemented, forming an original geological theory for rapidly acquiring oil and gas resources, and mastering key core technologies such as three-dimensional earthquake in loess plateau, optimized rapid drilling of horizontal wells, and industrial volume fracturing. By 22: 00 on June 365438+February 3, 2022, the annual oil and gas equivalent output of Changqing Oilfield exceeded 65 million tons, setting a record for the annual oil and gas output of China oil and gas fields.
3. Bohai Oilfield
The largest offshore oil field in China and the largest crude oil production base in China. Tianjin Branch of CNOOC (China) Co., Ltd. is responsible for the exploration, development and production of Bohai Oilfield. Bohai Sea covers an area of 73,000 square kilometers, of which about 43,000 square kilometers can be mined.
4. Shengli Oilfield
Over the past 50 years, Shengli Oilfield has made great contributions to the national economic construction while developing itself. Accumulated proven geological reserves of petroleum are 5.387 billion tons, proven geological reserves of natural gas are 267.6 cubic kilometers, and crude oil is 654.38+0.87 billion tons, which has made important contributions to the development of petroleum and petrochemical industry.
Brief introduction of other oil fields in China
Xinjiang oilfield. Located in Zhungeer, it is rich in oil and gas resources, and its crude oil output ranks fourth in China onshore oilfield, with a steady growth for 25 consecutive years, with an accumulated oil output of more than 200 million tons. The main exploration area is located in Junggar basin in northern Xinjiang, with its headquarters in Karamay, with an annual output of100000 tons.
Yanchang Oilfield is the first oil well on land in China, with a history of more than one hundred years. The main development area of this oilfield is located in Ordos basin, which belongs to a typical "three lows" oil and gas reservoir with low permeability, low pressure and low production. After decades of practice, it has been proved that water injection development is the most effective and efficient development method.
Tarim oilfield. The output of crude oil ranks third in China, with sufficient storage capacity. The oil fields here are all over the five southern Xinjiang States, with an annual oil and gas production capacity of 30 million tons. It is the third largest onshore oil and gas field in China and the main gas source of West-East gas transmission, also known as the second Persian Gulf.