Detachable steam injection metering pry for heavy oil thermal production well

Abstract

The invention discloses a detachable steam injection metering pry for a heavy oil thermal production well. The detachable steam injection metering pry comprises a flow pry, clamp connectors, an adjusting pipeline connector, an adjusting connector, a connecting clamp head, a production steam injection pipe and a Christmas tree, wherein the flow pry is connected with the Christmas tree through a pipeline, and the arrangement of the pipeline is adjusted according to actual requirements; the clamp connectors are arranged on the portions, on the two sides of the flow pry, of the pipeline respectively and are close to the flow pry; the adjusting pipeline connector is arranged at the position of a pipeline connector on the side portion of the flow pry; the adjusting connector is arranged at the position of a pipeline connector on the side portion of the Christmas tree; and the connecting clamp head is arranged on one side of the adjusting connector, and the production steam injection pipe isarranged on the portion, on the side portion of the Christmas tree, of the pipeline. According to the detachable steam injection metering pry, an existing wellhead steam injection pipeline does not need to be transformed, the steam injection metering pry only needs to be directly hoisted in place during steam injection, the use safety of the pipeline is high, the installation cost is low, the shutdown time is short, large-scale application of key equipment for steam injection metering is facilitated, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of oil vapor recovery, in particular to a detachable steam injection metering skid for heavy oil thermal recovery wells. Background technique [0002] Petroleum, a viscous, dark brown liquid known as the "blood of industry," is a vital source of energy, and the world's demand for it is growing day by day. At present, the geological reserves of heavy oil in the world are about 6.3×10 12 bbl, which occupies a relatively large proportion of the world's oil and gas resources. Heavy oil, that is, high-viscosity heavy crude oil, is usually called asphalt or heavy oil. Its outstanding features are high content of colloid and asphaltene, and less wax content, so the viscosity of heavy oil is very high. Under reservoir conditions, heavy oil seepage resistance is high, flow is difficult, and development is difficult. In my country, heavy oil resources are widely distributed, and onshore heavy oil resources account ...

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Problems solved by technology

However, the existing installation of the flowmeter connection pipeline requires the transformation of the original pipeline. Electric welding will be used to transform the existing steam injection line and increase the flowmeter connection head, which will not only increase the workload, but also cause the steam injection pipeline The high-temperature and high-pressure steam in the pipeline needs to withstand high temperature and high pressure steam, and the requirements for the quality of the weld seam also increase accordingly, so that there are certain safety hazards in the quality of the weld seam welded on site, resulting in a decrease in operation safety. It leads to high cost and poor interchangeability with flowmeter connectors, flowmeters and other components, which limits the large-scale application of key equipment for steam injection metering

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