Liaohe Oilfield has always adhered to the development strategy of rejuvenating oil through science and technology, and continuously increased its investment in science and technology. PetroChina’s Liaohe Oilfield announced on April 26, 2021, that since 2021, the daily industrial gas production of Liaohe Oilfield reached 2.33 million cubic meters, a breakthrough The 12-year high, the cumulative gas production exceeded 200 million cubic meters.

Liaohe Oilfield is a China Petroleum Regional Company that focuses on oil and natural gas exploration and development. It is China's largest production base of heavy oil and high pour point oil, and was once China's third largest oil field. However, the Liaohe Oilfield has inherent shortcomings of "low production and high consumption" in natural gas resources, and its dependence on foreign sources is high. In addition, in recent years, environmental protection measures have been vigorously promoted to reduce the proportion of crude oil and residual fuel, and the pressure on gas consumption continues to increase.

For this reason, since 2021, Liaohe Oilfield has planned and deployed ahead of schedule around the annual work target, relying on actual production workload, and optimized organization and operation. Up to now, 234 well-times of various natural gas production have been completed, with a daily gas production of 233. 10,000 cubic meters, a year-on-year increase of 444,000 cubic meters. The cumulative gas production was 205 million cubic meters, setting a new record for industrial gas production in the past 12 years.

"New wells are the key to production succession." According to the relevant person in charge of the Liaohe Oilfield Exploration Division, Liaohe Oilfield has increased the production and construction of new wells. By strengthening dynamic analysis and research, the gas reservoir is fully integrated with the wellbore, gas production technology, and surface system. Improve the efficiency of new well deployment. At present, 5 new gas wells and 66 new wells of dissolved gas have been put into production, with a daily gas production of 123,000 cubic meters.

Old wells are the basis for stable and increased production of natural gas. Liaohe Oilfield has increased its efforts in the treatment of long-stop wells, taking full advantage of technical advantages such as adjustment and compensation layers, drainage and gas production, fracturing and sand control, and comprehensive treatment of long-stop wells and low-efficiency wells. Since 2021, measures have been implemented in the Xing 20 District, Fahan Niu and other blocks, with 61 well-times of work. The opening rate of natural gas wells has increased by 9% year-on-year, and the daily gas increase is 275,000 cubic meters.

In addition, management and tapping the potential can effectively expand the space for gas enrichment. Since 2021, Liaohe Oilfield has strengthened natural gas production management, actively organized various oil production units to screen scattered gas wells, established natural gas recovery sites, and implemented indirect management of low-yield wells. Through the implementation of the three measures of vehicle-mounted gas collection, casing gas collection and indirect gas collection, 102 new gas collection wells were added, with a daily increase of 33,000 cubic meters and a cumulative increase of 1.557 million cubic meters, realizing natural gas "particle storage". Editor/Sang Xiaomei