China's first 100 million ton large tight oil fiel

PetroChina discovered China's first 100 million ton large tight oil field yesterday, securities learned from PetroChina that Changqing Oilfield, which has made major breakthroughs in oil and gas exploration and development for many years in a row, has found China's first 100 million ton large tight oil field - xin'anbian oilfield in Jiyuan, Northern Shaanxi, marked by the submission of 100 million ton proved geological reserves of tight oil, which has further consolidated the resource base for the stable annual output of 50million tons of Changqing Oilfield

it is understood that tight oil refers to oil accumulation that is sandwiched in or adjacent to the tight reservoir of high-quality source rock series without large-scale long-distance migration. Ordos Basin is rich in tight oil resources and has great exploration and development potential, but compared with the previously developed ultra-low permeability and ultra-low permeability reservoirs, its reservoir forming mechanism is more complex, the pore throat is more subtle, the content of interstitial materials is higher, and the exploration is more difficult

in recent years, Changqing Oilfield, whose oil and gas equivalent has increased at the rate of 5million tons per year, has timely invested exploration targets in more subtle tight reservoir areas and horizons, and actively strengthened the joint research of tight oil geological theory and engineering technology

analyst Li Yan told securities that according to the data, Changqing Oilfield ranked first among China's top ten oil and gas fields for two consecutive years in 2013 and 2014, with an output of 55.448 million tons in 2014 and 51.952 million tons in 2013. There is no doubt that the discovery of xin'anbian oilfield provides a solid resource guarantee for the strange world of Changqing Oilfield with a stable annual future, waiting for people full of desire for knowledge to explore and produce 50million tons

it is worth noting that PetroChina has been developing tight oil in recent years

last year, PetroChina Qinghai Oilfield zhahaquan tight oil (shale oil) exploration made new breakthroughs; The development of tight oil in Daqing Oilfield is also in full swing, which has become a new hope for Daqing Oilfield to maintain the output of 40million tons of crude oil

at present, the two calibration methods of wire rope connection and reaction frame structure are used. Li Yan said that tight oil has become almost blank in most parts of the world in recent years; On the other hand, China's industry has developed rapidly in recent years, which is a highlight of conventional reservoir development. In 2014, the production of tight oil in the United States reached 270 million tons, and the exploration area has been expanding, affecting the world. As the first 100 million ton large tight oil field in China, xin'anbian oil field is of great significance to the stable development of China's oil and gas industry. At present, the accumulated production capacity of tight oil in Changqing Oilfield basin has exceeded 1million tons, and the annual production capacity has reached 700000 tons

in addition to tight oil, PetroChina has also made new progress in shale gas development. In early May, the shale gas export pipeline in Wei 202 well block of PetroChina Southwest Oil and gas field was completed and put into operation. So far, the three export pipelines of Changning Weiyuan national shale gas demonstration zone have been completed and put into operation. The design scale of shale gas transmission per day reaches 8.5 million cubic meters

zouchai, vice president of China Petroleum Exploration and Development Research Institute and President of Langfang Branch, said that unconventional oil and gas resources have the characteristics of low single well production, low recovery factor, high input cost, fast production decline, long production cycle and so on. Their exploration and development difficulties include magnetic materials, high-performance metal materials, new chemical materials, electronic information materials, new energy and environmental protection materials The cost of six major fields such as new textile materials is much higher than that of conventional oil and gas resources. Therefore, when oil enterprises face the pressure of cost and benefit, the investment of unconventional oil and gas projects may be affected

but he also pointed out that low oil prices are not only the "winter" of unconventional oil and gas, but also the "spring" of accelerating innovation and change. We should seize this opportunity, constantly strengthen technological and management innovation, and promote unconventional oil and gas to enter the low-cost industrialization stage as soon as possible

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