Showing posts with label drilling. Show all posts
Showing posts with label drilling. Show all posts

Oil Found Off Australia's North West Coast

There has always been a belief that Australia's future lies in finding a mineral that is plentiful in the north west of the country. Till now this has not been achieved. Everyone knows that Western Australia is full of iron ore so this is not what they are looking for.

Drilling for many years has just made holes in the ground. Companies have gone over ground already explored before. This is how the latest find was made. There is oil there and in vast quantities. Apache Corp. has made the announcement that was greeted with surprise by some people.

Apache was searching for gas when it made the discovery. Considering Australia's oil production has fallen to its lowest level for forty years this can only be good news.

Income to Western Australia from iron ore has declined due to a fall in Chinese demand. The price for iron ore is down by a third since January. Australia is producing far more ore than it can sell. Coal is not doing well either.

The oil found by Apache is of very high quality so a high price is expected for it when it eventually comes on line. Unfortunately, it could be some time before this happens. Normally developing a new oil field takes decades.
Economics by Ty Buchanan
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     Australian Blog                         

Revolutionary Mineral Drill Rig Announced

Drilling techniques in industry have not changed for decades. Oil rigs are built in he same old way. Now something has come along that will improve drilling enormously. The Deep Exploration Technologies Cooperative Research Centre based in Adelaide has announced a new type of drill. It is constructed with coiled tubing.

Costs will fall dramatically as drilling is faster.  Australia's mines are mostly over 30 years old. New mines have to be established. We can only rely on the old mines for another 20 years.

No longer is it necessary to keep stopping to add a new drilling section. The new drill is a continuous coil of tubing. Being smaller and lighter transportation is easy. The motor is at the bottom of the shaft, not at the top. The tubing no longer twists during drilling. Any twisting will occur in the other direction as the motor pulls the tubing around.

Less drilling power is needed as the tubing is being pulled around in already drilled space. A lot of torque was lost with the old system as the engine had to force the whole length of the drill around. Drilling will continue with fewer drill breakages. Thus, downtime will be reduced.
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Technology by Ty Buchanan
     Australian Blog                         

Nullarbor Created by Many Small Rivers

The Nullarbor plain in the central-southern part of Australia is one of the driest regions on Earth. It is called the Ceduna Delta. The Murray-Darling further to the east is the largest river system extant today. It is difficult to accept that the Nullarbor was created by many small rivers flowing southward into the ocean. These rivers flowed very fast cutting through hills which were formed by the land rising between Australia and Antarctica. Ultimately, sediment was deposited in the drying riverbeds.

Analysis of sediment from drillings in the delta showed rivers flowed there 80 million years ago. Sources of gas and oil have been identified which could be tapped in the future. The Ceduna Delta is as large as the Niger Delta in Africa. It contains half a million cubic kilometers of sedimentary sandstome and shales. Hydrocarbon reserves are already being exploited in the Niger Delta.

Because the "destination" of the rivers was close to the Great Australian Bight large amounts of other minerals such as zircon are also located there. It seems predictions about carbon fuels running out are not well founded. Pollution of the planet will continue into the near future irrespective of the damage it causes.
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