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Dehydrated ultra thick oil pipeline transportation method and corollary arrangement

A technology for pipeline transportation and ultra-heavy oil, applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., can solve problems such as lack of mature experience in submarine pipelines, and achieve the effect of reducing heat dissipation loss and improving fluidity

Active Publication Date: 2008-11-26
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Skin effect electric heat tracing is suitable for long-distance pipeline heat tracing, but there is no mature experience in applying it to submarine pipelines internationally

Method used

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  • Dehydrated ultra thick oil pipeline transportation method and corollary arrangement

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] On October 1, 2004, the world's first super-heavy oil pipeline from Shuguang Special Oil No. 2 Station to Liaohe Petrochemical Company's super-heavy oil pipeline was completed and put into operation. The purpose of this project is to provide raw materials for the delayed coking unit of Liaohe Petrochemical Company. The following methods are used for the dehydration of heavy oil:

[0054] The starting point of the project is located at the first station 10 of Teyou No. 2, and the end point is at the last station 7 of the refinery. The oil transportation capacity of the pipeline in the super heavy oil area is 100×14 4t / a, with a first station 10, an intermediate heat pump station 5, an oil delivery station 7 and a 26-kilometer oil pipeline, and equipped with a skin effect heat tracing device 4, when the heavy oil super oil of Shuguang Special Oil No. 2 station is at a temperature of 50 ℃ , Viscosity 115893.0MPa·S Oil pipeline uses domestic L360 spiral seam submerged arc ...

Embodiment 2

[0061] The present invention applies dehydrated ultra-heavy oil buried pipeline anti-corrosion, heat preservation structure and oil pipeline skin effect heat tracing, and supplements the heating mode through the intermediate heat pump station 5. Therefore, in the process of oil transportation, it is not affected by the terrain environment and cooling. During the 30-kilometer-long pipeline transportation process, oil was successfully delivered once.

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Abstract

The invention relates to an apparatus and method for pipeline transportation of the dehydrating super heavy crude which belongs to the art of pipeline crude transportation. The invention adopts the thermal insulating pipeline with skin effect, having fuel delivery pump, filter and heat exchanger installed on the oil pipelines which are lay under the ground; performing pre-heating before transportation, injecting oil after the water temperature in the pipeline comes to 75 degree. The method can ensure transporting dehydrating heavy crude in the pipeline of 30 kilometers length and 406 millimeters diameter.

Description

Technical field: [0001] The invention belongs to the technical field of pipeline crude oil transportation, and in particular relates to a method for pipeline transportation of dehydrated super-heavy oil and a supporting device. Background technique: [0002] At present, the output of ultra-heavy oil in Liaohe Oilfield has reached 2 million tons per year. Due to the high viscosity and high friction of pipelines, the collection and transportation of ultra-heavy oil has always been carried by vehicles, which seriously restricts the production of ultra-heavy oil. Technical research on super heavy oil pipeline transportation technology, mainly to solve a series of problems such as environmental pollution, traffic obstruction and oil loss caused by automobile haulage. At present, the research work on heavy oil pipeline transportation has made some progress in Canada, Venezuela and other heavy oil countries , and some technologies are relatively mature, mainly using distillate oil ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D1/14F17D1/16
Inventor 张维志冯雨新
Owner BC P INC CHINA NAT PETROLEUM CORP
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