| 1 | Negative overlooking, facing south, surrounded by Changyuan, an area of 10,000 square meters. | |
| 2 | Some uplifts developed at the bottom and long hills developed at the east side of the Philippine Trench. | |
| 3 | These phenomenon indicate that the gas in placanticline is in a state of moving. | |
| 4 | The results shows that there is a giant gas field in the deep of Daqing Changyuan which continuously added natural gas fie. | |
| 5 | Besides Putaohua reservoir of Daqing Placanticline in the northern part of Songliao Basin, Satellite Oilfield, rich in reserves and high in single well oil production, is the largest oilfield. |