Split-type two-pass highly-efficient crude oil heating system in well site
A heating system and dual-flow technology, applied in wellbore/well components, isolation devices, earthwork drilling and production, etc., can solve the problems of increasing the workload of operators, heating furnaces cannot be shared, and occupying well site space, etc. Potential safety hazards, fast heating speed, and the effect of reducing investment
Inactive Publication Date: 2011-04-27
SHENGLI OILFIELD SANLI GASOLINEEUM TECH DEV
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Problems solved by technology
However, due to the limitations of the current crude oil heating system used in the newly-built heating system, the heating furnace cannot be shared, which not only occupies the well site space, increases investment, but also increases the workload of operators and wastes fuel.
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[0020] combined with Figure 1-4 , to further describe the present invention:
[0021] The present invention mainly consists of a heating furnace 1 blower 2, a hot oil circulation pump 3, an electric control cabinet 4, an upper tank 5, a lower tank 6, an oil-gas separator 7, a filter 8, a thermometer 9, a pressure gauge 10, a high temperature gate valve 11, The medium overflow pipe 12 and the medium circulation pipe 13 constitute a heating unit. Among them, the outlet of the heating coil in the furnace body of heating furnace 1 is a double process, one is connected to the crude oil heating system in the tank through the high-temperature gate valve 11, and the other is connected to the wellbore lifting heating circulation system through the high-temperature gate valve 11, and the heat transfer medium in the heating coil is heat transfer oil.
[0022] The heat exchange unit is composed of an oil storage tank body 14, an oil storage tank support 15, a heat exchange coil 16, an ...
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The invention relates to a split-type two-pass highly-efficient crude oil heating system in a well site, which has the technical proposal as follows: the heating system comprises a heating unit and a heat exchange unit, which are connected through a medium circulation pipe, wherein heat exchange coils are arranged in an oil tank body of the heat exchange unit; an oil discharge pipe and a water discharge pipe are arranged outside the oil tank body; each of the heat exchange coils comprises a water-layer heat exchange coil and an oil-layer heat exchange coil, which have independent passes and are switched to control heating by a high temperature gate valve outside the tank body; the water-layer heat exchange coil is arranged at the bottom of the oil tank, and the oil-layer heat exchange coil is arranged at the upper part of the oil tank. The invention has the following benefits of rapid heating speed and high thermal efficiency during oil discharge, and no potential safety hazard; the special double-layer two-pass heating coils in the oil tank body and the separate design for oil discharge and water discharge save fuel consumption to a maximum extent, and the heating coil structuresdesigned in the oil discharge pipe and the water discharge pipe avoid blocking in winter.
Description
1. Technical field: [0001] The invention relates to a split-type double-flow high-efficiency well site crude oil heating system. 2. Background technology: [0002] At present, for wax-containing wells and heavy oil wells that use a single well to pull oil in oil fields, most of the crude oil is heated by multi-functional tanks or elevated square tanks. The furnace flue forms a coil to directly heat crude oil. This method has serious safety hazards. First, once the flue is perforated, crude oil will overflow into the flue and cause a fire; second, the temperature of the flue is too high, and the crude oil is easy to coke on the outer wall of the flue, which affects the heat transfer effect and the heating efficiency is low. And for crude oil with high water content, because the tank unloading oil and water discharge channel is an outlet, the temperature of high waxy oil unloading needs to reach 70°C, and the high temperature of ultra-heavy oil even needs to reach above 90°C. ...
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IPC IPC(8): E21B36/00
Inventor 薛炳平
Owner SHENGLI OILFIELD SANLI GASOLINEEUM TECH DEV