Tank Calibrators - Hydrostatic Pressure Testing of Pipelines

Tank Calibrators is the contractor of choice for hydrostatic pressure testing of gas and liquid petroleum pipelines. Since 1993, we have been a NATA-accredited laboratory (No 12829) for field pressure testing of pipelines. All strength, leak and combined pressure tests are conducted in accordance with AS/NZS 2885.5:2002.

A test program will be prepared prior to conducting the hydrostatic pressure test that meets both NATA and client specifications. It will outline the test procedure and will include the list of certified equipment to be used during the test.

A NATA-endorsed report will be compiled for the client upon completion of the test. The report will contain all the necessary documentation required to meet the client's requests and the Australian Standard.

Pipeline filling

The filling of pipelines by Tank Calibrators is conducted in accordance with AS/NZS 2885.5:2002. This will ensure that there is a minimal volume of air trapped in the test section by employing the best possible fill rates and pigging techniques.

De-watering and drying of pipelines

Prior to drying, Tank Calibrators will de-water the pipeline in the most efficient manner, taking into account safety and environmental factors.

After de-watering, drying of the pipeline is carried out to meet the dew point specifications required for the final product. This will prevent corrosion or unacceptable moisture content in the product flow.

Calibration of bulk storage tanks

Tank Calibrators calibrates your bulk storage tank using the most accurate strapping method: optical reference line method or the internal electro-optical distance ranging methods using a total station. All calibration work is carried out under the terms of our NATA accreditation and quality assurance certification.

Vertical cylindrical tanks are also calibrated as for bulk storage tanks. Floating roof tanks and fixed cone roof tanks fitted with internal floating raft are provided with an additional page of tables showing the quantities to be deducted throughout the partial zone of displacement and the quantity to be deducted when the roof or raft is fully afloat in a range of product densities.

Horizontal cylindrical tanks are either strapped or calibrated by liquid transfer using our certified master flow meter. Inclination is taken into account. The ends can be flat, ellipsoidal, spherical segment, hemispherical or conical. Calibration tables or graduated dipsticks in litres or gallons can be provided.

References

During the past 50 years we have been entrusted with the calibration of storage tanks, vehicles and rail tankers throughout Australia, Papua New Guinea and the Pacific Ocean. In the petroleum industry, Tank Calibration has served:

• The Shell Company of Australia
• Shell Company Papua New Guinea
• Mobil Oil Australia
• BP Australia
• Mobil Oil Fiji
• Santos
• Origin Energy Pacific
• Interoil Products