Continue decoding the oil spill

While authorities from scientists to military and defense efforts to find the cause of the black oil spill on the coast from Central to South Vietnam, the clam fields of the people are dying mass , many shrimp ponds are under threat . Many assumptions have been made, many question marks are still unclear. Once again, TTCT invites readers to continue searching for answers .

Oil spill and Northeast monsoon

Further reinforce the hypothesis that oil spill from Liu Hua oil field is down to explain the northeast monsoon and winds. According to Malaysia's TRACC Research and Conservation Center, ocean changes in the East Sea are divided into two seasons: from November to March in the northeast and from May to November in the southwest.

In the northeast monsoon mode, the wind on the East Sea blows from the northeast. In the first phase of this season until January, strong winds in the region between Japan and mainland China lead to stormy weather. This explains the " late " storms in early December in the Central region (storm No. 9) . In the second phase of February and March, the wind blows from the Pacific Ocean.

Photo 1: Southwest monsoon (Photo: TTO)

In the southwest monsoon regime from May to November, the winds bring the flow of water counterclockwise to the north coast of Borneo island up to the Philippines and the Spratly Islands (photo 1).

With the northeast monsoon (November to March), seawater rotates clockwise south to the northern coast of Borneo, then backs up along the west coast of the Malay and Thai peninsulas. Lan, then head to Vietnam (photo 2).

Photo 2: Northeast monsoon (Photo: TTO)

http://www.tracc.org.my/Borneocoast/WEATHER/CURRENTS.html

From the details of the northeast monsoon and sea currents, if compared to China's oil and gas map (see map) below with figure 1, it can be seen that the direction of oil spill movement occurs in the period. northeast's wind. The clockwise scroll coincides with the previous oil spill from Quang Nam coast (early February), then back to Thua Thien - Hue, Quang Tri and Quang Binh (late February), before coming down. south, to Vung Tau, Tien Giang and Ca Mau (the second half of March) .

Since then, it can also be thought that in the northeast monsoon season (November to March) it is unlikely that oil of Vietnam's mines (from Bach Ho, Rong and Dai Hung mines of Vietsvopetro in the Nam Con lowland area) Son and of the mines Ruby, Rang Dong, Su Tu Den, Su Tu Trang, Su Tu Nau, Emerald of Cuu Long Joint Venture Company in Binh Thuan waters and some other oil fields are in the exploration phase, photo 2 ) flows up north as during the northwest monsoon period.

Analysis of oil samples

The results of analysis of contaminated oil samples taken from Da Nang's coast of Vietsovpetro on February 13, 2007 and taken from the coast of Da Nang to Quang Nam on March 22, 2007 show that this spill is in two ' groups '. Oils are different, but are different from the oil samples of Vietsovpetro mines.

Map (Photo: TTO)

However, there are a few differences between these tables. In the results of the first sample analysis, there are no details of oil density as in the second analysis table.

The quantification of this density, in the condition that it is salvaged from the coast, has sand, lumps, and evaporation, rather than the original spill, difficult to be accurate. Therefore, if there is still an original amount of spilled oil that has not been destroyed, it is possible to sample the original spill oil, not to clot with this sand to bring it back to analysis.

Wanting or not wanting, the results of this analysis are only of Vietsovpetro, which is only one party, only accountable. In order to achieve accuracy and objectivity, it would have been possible to rely on independent analytical centers to conduct the analysis as a retired first-rate expert in Ho Chi Minh City. Domestic institutions such as the Institute of Chemistry have the ability to do this independent analysis.

From there, there may be other comparative analyzes to clarify the difference with the sources of questionable oil. Such as comparing the API level of each oil field. The online information on crude oil of Luu Hoa mine 11-1 indicates that the weight of this oil is from 16-22 degrees API - a quantitative scale of the American Oil Institute (API), whereby the higher the API The lighter the oil, and the lower the API, the heavier the oil. There are also many other ' fingerprints ' for comparison.

http://tle.geoscienceworld.org/cgi/content/extract/19/8/834

" Garbage " stays

In addition to the mines that are being exploited, there are mines that have been explored, but are not put into operation because they are not eligible for exploitation. It is possible that oil spills from oil wells have closed wells. Due to abnormal geological conditions, oil wells are affected by tremors that increase pressure in the well, causing oil leakage to the outside.

(Photo: TTO)

In the past and present, there are drilling platforms operating quite close to the coast of Vietnam. The most significant is the Kantan 2 drilling platform with the Nam Hai 215 ship of China. According to the announcement from China, from November 19 to December 31, 2004, this platform was towed by the ship to its position at 17 degrees 26 minutes 42 seconds north latitude, 108 degrees 19 minutes 05 seconds east longitude, 63 nautical miles from the coast of Vietnam, 67 nautical miles from Hainan Island. This position is located on the continental shelf and in the exclusive economic zone of Vietnam. This exploration is part of a contract between China's CNOOC Oil Company and Arco Oil Company. That time, the Vietnamese side strongly protested that the Chinese side had seized 2.5 nautical miles. ASEAN also participated in the protest. After eight months, this rig was towed.

http://www.cnd.org/CND-Global/CND-Global.97.4th/CND-Global.97-11-25.html

In 1997, the 3 Kantan drilling rig once broke into the exclusive economic zone of Vietnam and was " invited out ", in the area of ​​Lot 113, 64 nautical miles from Chan May Cape (off Da Nang), and the way of Hai Island. Male 71 knots .

http://community.middlebury.edu/~scs/maps/US%20EIA,%20South%20China%20Sea%20Tables%20and%20Maps.htm.

Go, drill, ' garbage ' stay is a possibility. ' Garbage ' here may be drills that must not be sealed or because seismic elements have covered their mouths but are 'exposed'.

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Again, these are just question marks that need clarification. Including the question mark: Why haven't there been independent analyzes?

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