Titanium alloy used in offshore oil production

Titanium used in the coastal oil production includes both low-strength industrial grade titanium and high-strength and age-aged titanium alloys.

As the depth of oil exploration increases, offshore oil recovery equipment will require lighter weight, stronger and better corrosion resistant materials to ensure reliability and longer service life.

In low pressure water systems, industrial grade titanium has been substituted for 6Mo austenitic steel and is used primarily on the top. The reason for the low cost of titanium is that it can withstand crevice corrosion up to 90 C.

Titanium has been used in high-pressure production tubing for sub sea mining, aiming to reduce weight, reduce costs and avoid damage.

It is reported that the use of Ti-3Al-2.5V alloy soft-made pipe, it has been reported that a small number of such devices have been established abroad, is currently being evaluated, in addition to also consider other uses, including the need than industrial pure titanium strength Higher occasions.

Now φ38mm Ti-6Al-4V ELI alloy seamless pipe obtained in the sub sea pipeline applications.

Statistics show that so for millions of pounds of titanium and its alloy processing products have been used in offshore oil exploration, and this number will continue to increase as the use continues to grow. From the perspective of weight, strength and corrosion resistance, titanium and its alloys are the sole wise choice.

At the Continental Oil Heidrun TLP project, a titanium riser was appointed to drilling. The river had a diameter of about 508mm and an overall length of 12192mm. It is composed of 3. The central part is a joint pipe, while both ends are forged and machined and made of Ti-6A1-4V ELI titanium alloy.

Heidrun engineering platform holes diameter of 900mm.It is cold formed after welding and its associated fittings and pipes are also observed of industrial titanium (Qr2).

Bunting Titanium, in England, manufactures titanium pipelines, replacing the rubber-lined carbon steel pipelines with titanium-coated ducts and reducing the weight by 80%. Thereby reducing the weight of the supporting components and also the corrosion resistance.

For the Troll Project at Norskc Shell, a gas / water heat exchanger tube with a diameter of 1016mm is used. Tubes made of commercial pure titanium (Gr. 2) require a working life of more than 100 years. It is pointed out that a company based in Permascand, Norway, manufactures this pipe by cold forming-welding.

Cooper-Cameron Petroleum Ltd., located in Houston, Texas, USA, uses a Ti-6Al-4V ELI alloy extrusion to produce a rise that was put into green-canyon projects using tubes of 295mm and 346mm in diameter and 10668-11582mm in length. It is pointed out that this device has been in operation in May 1995.

The industrial pure titanium ballast system piping components was installed in Mobil's Stariord'A 'project. The carbon steel pipe was replaced by 457mm-diameter industrial pure titanium welded pipe. In addition, top valves can be taken from industrial grade titanium.