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| | | Biodiversity | |  | Biodiversity, an integral part of the ecosystem, safeguards the ecological balance and ensures a favorable environment for human beings. CNPC does its best to protect biological habitats, biodiversity and the ecological balance in its operation areas and their surroundings through various measures like green operation and engineering construction. |
| CNPC Liaohe Oilfield is located in the Liaohe delta wetland. It is inhabited by 409 kinds of wild species such as Saunders Gulls, the world's rarest water bird, and red-crowned cranes, one of China's most important protected birds. As a national nature reserve, this place is one of the largest areas with the best-preserved and most complete vegetation.
Given that this is such a special environment, CNPC invests heavily to ensure that the wetlands are protected at every stage of our operations. Horizontal and cluster wells are drilled instead of vertical ones to save land resources and protect the natural landscape and water sources of the Liaohe delta wetland. Besides, the oilfield has fully met standards for environmental indicators such as wastewater discharges, surface oil recovery and harmless treatment of drilling waste, and no oil spills have ever occurred in the oilfield. | | | |
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