Heavy oil well test spiral synergy heating pipe

Abstract

The invention discloses a heavy oil well test spiral synergy heating pipe, which is characterized in that the heavy oil well test spiral synergy heating pipe mainly consists of a heavy oil delivery pipe, a spiral clapboard and a casing pipe, wherein the spiral clapboard is surrounded on the periphery of the heavy oil delivery pipe; the casing pipe is sheathed on the periphery of the spiral clapboard; a hot water inlet is arranged near one end of the casing pipe on the pipe wall of the casing pipe; a hot water outlet is arranged near the other end of the casing pipe on the pipe wall of the casing pipe; a spiral water flow channel is surrounded by the heavy oil delivery pipe, the casing pipe and the spiral clapboard. Due to the structural style, the temperature of ground heavy oil can be raised while the heavy oil is delivered, the heavy oil viscosity is lowered, the delivery resistance is reduced, the guarantee is provided for successfully finishing the heavy oil well test operation, and the heavy oil well test spiral synergy heating pipe has a wider popularization and application prospect. As a plurality of turbulence excitation bulges are distributed on the spiral clapboard, hot water is affected by turbulence excitation points to generate turbulence, heat is continuously exchanged in the hot water, and therefore the heat exchange efficiency of the heating pipe is further improved.

Description

technical field [0001] The invention relates to the field of formation testing of oil and gas wells, in particular to a spiral synergistic heating tube for testing heavy oil wells. Background technique [0002] At present, the requirements for marine environmental protection are increasing day by day, and the output fluid from offshore heavy oil exploration well testing operations cannot be burned. Since there is no production platform as a support, it needs to be transferred to the environmental protection ship through the process, and then transported by the environmental protection ship to the surrounding production platform, and injected into the production through the process system. The current test pipeline has no heating function. The temperature of the heavy oil drops rapidly during the surface process, and the viscosity rises rapidly. Some heavy oil with a high freezing point even freezes after it comes out of the well, making it impossible to flow at all. Conten...

AI Technical Summary

Problems solved by technology

The current test pipeline has no heating function. The temperature of the heavy oil drops rapidly during the surface process, and the viscosity rises rapidly. Some heavy oil with a high freezing point even solidifies after it comes out of the well, and cannot flow at all.

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