How Are Oil Spills Cleaned up?

On June 11, 2011, the oil spill occurred near platforms B and C of the Penglai 19-3 oilfield oil spill accident on the 10th, and there was still a small amount of oil spill on platform C. At 16:00 on June 11, 2011, an oil belt over a kilometer can be clearly seen floating on the sea surface. Five red and blue tankers are around the C platform, and the suction streamers and linoleum on the side of the boat are constantly performing oil draining work. On August 24, 2011, ConocoPhillips held a press conference in Beijing on the oil spill in the Bohai Bay. Situ Rui, president of ConocoPhillips China Co., Ltd., apologized to the public at the press conference and said it would be responsible for the oil spill. August 31, 2011 is the deadline for the State Oceanic Administration to request ConocoPhillips (China) Co., Ltd. to achieve "two thoroughness" (that is, thoroughly investigate the risk points of oil spills and completely block the source of oil spills).

Oil spill in Penglai 19-3 oilfield

ConocoPhillips held a media communication meeting and thanked CNOOC first

On August 31, 2011, it was the State Oceanic Administration that required ConocoPhillips (China) Co., Ltd. (hereinafter referred to as ConocoPhillips) to achieve "two thoroughness" (that is, thoroughly investigate the risk points of oil spills and completely block the source of oil spills). deadline.

On August 30, 2011, a person from the State Oceanic Administration said that ConocoPhillips will submit a third-party assessment and appraisal report to the State Oceanic Administration. It is still uncertain whether the "two thoroughness" can be achieved.

Fang Jianmeng, director of the North Sea Branch of the State Oceanic Administration, revealed that the bureau has basically completed the ecological investigation and assessment of the sea area polluted by the accident, and obtained a large amount of first-hand information with legal basis for monitoring and investigation. The claim is supported by legal evidence.

Can "two thoroughness" be achieved? Xue Dongming, director of corporate communications and corporate social responsibility at ConocoPhillips China, said: "We will submit relevant reports in accordance with the requirements of the Oceanographic Administration. We also hope that the" two thorough "goals can be achieved."

According to the situation report of ConocoPhillips, as of August 29, 2011, 399 cubic meters of mineral oil and oil-based mud was cleared from the seafloor around platform C, which was more than 99% of the total oil-based mud leaked on June 17. ConocoPhillips plans to complete the cleanup of all remaining oil-based mud by the end of August. As a precautionary measure, continue to search for and clean up any residual mineral oil oil-based mud that may be found.

Concerning the disclosure of 16 oil spills found on the C platform of the North Sea Branch, ConocoPhillips stated that 12 of them were no longer visible and had not leaked oil since it was first discovered. There are currently only four visible oil infiltration points, and only two of them are still intermittently active.

For platform B, ConocoPhillips has always stated that measures taken in June to reduce the pressure of underground formations have permanently closed the fault where the oil leakage occurred. There is a new oil spill point at 10.5 meters from the original oil spill point.

ConocoPhillips unilaterally stated that as of August 29, 2011, about 1 liter of residual oil and gas mixture percolated near the B platform had been recovered by the oil collection hood installed on the ocean floor. The currently recovered oil and gas mixture is the intermittent exudation of materials remaining in the original fault. No oil reached the surface at the point of penetration.

Deputy Director of the State Oceanic Administration

In the afternoon of September 2, the State Oceanic Administration announced that after an on-site inspection and expert assessment, the State Oceanic Administration determined that ConocoPhillips had not completed "two thoroughness." At the same time, the Penglai 19-3 whole oilfield was ordered to stop injection, stop drilling, and stop

Yesterday, the joint investigation team of the Bohai 19-3 oil spill accident said that after unanimous deliberation, ConocoPhillips did not completely block the source of the oil spill and ordered the Penglai 19-3 oilfield to stop injection, drilling and production operations. In this regard, the reporter contacted Conoco China many times yesterday, but the relevant person has not answered the phone.

This is the largest offshore oil field in China. ConocoPhillips from the United States is the operator in China.

On September 4th, ConocoPhillips China announced on its official website the specific progress of the Penglai 19-3 drilling shutdown.

ConocoPhillips China stated that it abides by the State Oceanic Administration s decision on September 2 to stop drilling reinjection and production operations at the Penglai 19-3 oilfield. ConocoPhillips began the shutdown process on the evening of September 2. Pipeline cleaning was carried out on September 4 to ensure that the shutdown process was carried out safely and in a timely manner, and to protect the recoverable capacity of the oilfield.

ConocoPhillips said that the final cleanup work has progressed, and divers continue to find and clean up any mineral oil and oil-based mud that may be found on the sea floor. In addition, ConocoPhillips took samples in the cleanup area to monitor the progress of the cleanup.

The report also stated that ConocoPhillips and its partners

After the State Oceanic Administration determined that the oil spill in the Penglai 19-3 oilfield was a responsible accident, new actions have taken place in accountability.

The Penglai 19-3 oilfield, which was suspended for one and a half years due to an oil spill, was officially allowed to resume production. On February 16, 2013, the State Oceanic Administration officially announced that ConocoPhillips had obtained approval documents for the overall development project and environmental impact report of the Penglai 19-3 oilfield. The State Oceanic Administration agreed that ConocoPhillips will gradually implement production-related operations.

According to the announcement of the State Oceanic Administration, after a series of rectification measures including drainage and pressure relief, maintenance and treatment, the Penglai 19-3 oilfield has returned to normal conditions and has the conditions for normal operations.

In June 2011, two oil spills occurred in the Penglai 19-3 oilfield in the central Bohai Sea. In September 2011, the State Oceanic Administration ordered the Penglai 19-3 oilfield to stop injection, drilling and production operations. The field is operated by ConocoPhillips and has a 49% interest, while CNOOC holds the remaining 51%.

The relevant person in charge of ConocoPhillips confirmed to the media yesterday that ConocoPhillips will gradually resume normal operations of the Penglai 19-3 oilfield under the guidance of relevant authorities. The resumed Penglai 19-3 oilfield will have a new development plan, and its operation process will undergo some changes. ^[7]