Intelligent steam regulation real-time control method and device

Abstract

A steam regulation real-time control device for heavy oil thermal recovery comprises a control terminal, a first electric thermal recovery wellhead steam valve, an electric regulation valve, a second electric thermal recovery wellhead steam valve, a flow meter and a steam dryness inspection gauge; the first electric thermal recovery wellhead steam valve, the electric regulation valve, the second electric thermal recovery wellhead steam valve, the flow meter and the steam dryness inspection gauge are connected in series at the end of a steam input pipeline to output steam at a constant flow rate; a steam pressure gauge is arranged in front of the first electric thermal recovery wellhead steam valve, and a steam pressure gauge is arranged behind the second electric thermal recovery wellhead steam valve; the control terminal is connected with a signal of the steam pressure gauge in front of the first electric thermal recovery wellhead steam valve, a signal of the steam pressure gauge behind the second electric thermal recovery wellhead steam valve, an opening parameter signal of the electric regulation valve and a real-time inspection parameter signal of the flow meter and the steam dryness inspection gauge, and the output end of the control terminal is connected with a valve opening control end of the electric regulation valve.

Description

1. Technical field [0001] The invention is applicable to oil field steam injection thermal recovery engineering and steam pipeline system. It is a method and device for real-time precise control of steam flow and pressure in pipelines and real-time feedback control of steam dryness. 2. Background technology [0002] my country's heavy oil resources are widely distributed and rich in reserves, and the country's estimated heavy oil resources are 300×10 8 t, the proven and controlled reserves have reached 16×10 8 t. Onshore heavy oil resources account for more than 20% of the total oil resources. It is the fourth largest heavy oil producer in the world after the United States, Canada and Venezuela. At present, the proven geological reserves of ultra-heavy oil that have not yet been developed in my country are 7.01×10 8 t, with the continuous growth of energy demand, there is an urgent need for a large number of high-performance heavy oil recovery equipment and technologies ...

AI Technical Summary

Problems solved by technology

[0014] However, the existing oilfield steam injection thermal recovery equipment does not adopt real-time control of steam regulation, and cannot self-diagnose and protect the device. If a failure occurs, it will easily expand and lead to worse consequences, and will lose a lot of manpower and material resources.

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