An appraisal well in Xinjiang Oilfield obtained high-yield oil and gas flow, which produced more than 113 cubic meters of crude oil and 26,800 cubic meters of gas per day
China News Service, Urumqi, August 19 (Liang Cheng) The reporter learned from Xinjiang Oilfield on the 19th that the Xinjiang Oilfield reservoir evaluation has spread good news: Dixi 331 well Carboniferous oil test after fracturing, 9mm nozzle, daily output of 113.28 cubic meters of crude oil , With a daily gas production of 26,800 cubic meters, marking a major breakthrough in the evaluation of oil reservoirs in the eastern section of the Dinan Uplift in the Luliang Uplift. The first 100-ton well in the Carboniferous Bashan Formation in this area was born.
Well Dixi 331 is an appraisal well to expand the Carboniferous exploration results in the Dixi 33 well block, confirm the distribution of high-level reservoirs and the scale of reserves, and explore the oil and gas content of the Permian Wutonggou Formation. It is an appraisal well for rapid production deployment in the later stage. .
Faced with the adverse effects of this year’s new crown epidemic, Xinjiang Oilfield actively implemented investments and plans, and quickly organized the preliminary preparations for well location surveys, reporting of prerequisites, design preparation, and well site construction. The well was successfully drilled on April 8, 2020. During the drilling process, the Carboniferous oil and gas in the target layer of the well showed very active. Drilling was completed on June 19. In order to ensure the quality of cementing, relevant departments and units of Xinjiang Oilfield strengthened the optimization of cementing plan and on-site construction process management to ensure that the cementing quality of the well was double-best, and to provide high-quality wellbore conditions for subsequent oil testing. On July 25, the drilling test handover of Well Dixi 331 was completed, and construction operations such as equipment loading, perforation, fracturing, and trial production were quickly entered.
It is reported that the oil test of the well is during the epidemic period, and there are problems such as equipment, personnel, and material transportation security problems. The relevant departments and units of Xinjiang Oilfield actively coordinate with local governments and inspection sites to help material personnel to pull vehicles to pass smoothly to ensure Various equipment and construction team personnel arrived in the well in time, and finally completed the well fracturing task on August 6, two days earlier than originally planned.
The well was opened at 22:00 in the evening on August 6 to withdraw fluid. Gas was seen on August 8, and oil was seen on August 9. On August 16, the 9mm nozzle produced trial production, and the daily oil production reached the highest peak.
After the Dixi 268 and Di 243 wells obtained industrial gas flow in the Carboniferous and Jurassic respectively, the well obtained industrial oil flow in the Carboniferous Bashan Formation in the eastern section of the Dinan Uplift in the Luliang Uplift, showing good oil and gas in this area. Exploration potential. According to the information currently available, the favorable area is expected to reach more than 100 square kilometers.
According to reports, in the next step, the relevant departments and units of Xinjiang Oilfield will continue to do a good job in the follow-up oil testing of the well, continue to fight the offensive battle to increase reserves and production, and efficiently organize the 2020 reservoir evaluation work. (Finish)