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Superheating boiler superheating steam desalting device for oil field steam injection and utilization method thereof

A superheated boiler and superheated steam technology, applied in steam superheating, steam generation, earthwork drilling and mining, etc., can solve the problem of no salt reduction, etc., and achieve the effect of reasonable structure, compact structure and convenient use

Active Publication Date: 2015-01-07
张宏伟 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a superheated steam desalination device for a superheated boiler used for steam injection in an oil field and its use method, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem that the salt content of the superheated steam from the superheated boiler is not reduced after being processed.

Method used

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  • Superheating boiler superheating steam desalting device for oil field steam injection and utilization method thereof

Examples

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Effect test

Embodiment 1

[0014] Embodiment 1, as attached figure 1 As shown, the superheated steam desalination device for steam injection in the oil field includes a superheated boiler 1, a primary steam-water separator 3, a heat exchanger 6, and a secondary steam-water separator 10; the water inlet of the superheated boiler 1 is fixedly installed with softened water The first wet saturated steam pipeline 4 is fixedly installed between the water supply pipeline 2, the water outlet of the radiant section of the superheating boiler 1 and the inlet of the primary steam-water separator 3, the gas outlet of the primary steam-water separator 3 and the superheating section of the superheating boiler 1 The first dry steam pipeline 5 is fixedly installed between the steam inlet, the superheated steam pipeline 7 is fixedly installed between the steam outlet of the superheating section of the superheating boiler 1 and the tube side inlet of the heat exchanger 6, and the liquid outlet of the primary steam-wate...

Embodiment 2

[0015] Embodiment 2, as preferred embodiment 1, as attached figure 1 As shown, a softened water heat exchanger 14 is fixedly installed on the softened water supply pipeline 2, the softened water supply pipeline 2 communicates with the shell side of the softened water heat exchanger 14, and the other end of the concentrated brine pipeline 13 exchanges heat with the softened water The tube side inlets of the device 14 are fixedly installed together, and the tube side outlet of the demineralized water heat exchanger 14 is fixedly installed with a drainage pipeline 15 . The concentrated brine coming out of the secondary steam-water separator 10 has a certain amount of heat. After the heat is exchanged with the demineralized water for heat recovery, it is recycled or crystallized and solidified to further achieve the purpose of saving energy and reducing consumption.

Embodiment 3

[0016] Embodiment 3, the use method of the superheated steam desalination device of the superheated boiler for steam injection in the oil field is carried out according to the following steps: the first step, the wet saturated steam coming out of the radiant section of the superheated boiler first enters a first wet saturated steam pipeline through the first wet saturated steam pipeline The first-stage steam-water separator is used for steam-water separation, and dry steam and saturated water are obtained after being treated by the first-stage steam-water separator; in the second step, the saturated water from the first-stage steam-water separator enters the shell side of the heat exchanger through the saturated water pipeline, and is fed by The dry steam from the primary steam-water separator enters the superheating section of the superheated boiler through the first dry steam pipeline to form superheated steam, and the superheated steam enters the tube side of the heat excha...

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Abstract

The invention relates to a superheating steam processing device for oil field steam injection and discloses a superheating boiler superheating steam desalting device for oil field steam injection and a utilization method thereof. The superheating boiler superheating steam desalting device for the oil field steam injection comprises a superheating boiler, a first-level steam-water separator, a heat exchanger and a second-level steam-water separator; a softened water feeding pipeline is fixedly installed on a water inlet of the superheating boiler; a first wet saturated steam pipeline is fixedly installed between a water outlet of a radiation section of the superheating boiler and an inlet of the first-level steam-water separator. According to the superheating boiler superheating steam desalting device for the oil field steam injection, the structure is reasonable and compact, the utilization is convenient, salt in the superheating steam is removed to some extent due to the two levels of steam-water separators, the salt removing rate is achieved 80% to 95%, blocking of a steam injection pipeline, an underground pipe column, an oil pumping pump and an oil layer caused by separation by crystallization of salt carried in the superheating steam is avoided, and a purpose of energy saving and consumption is further achieved.

Description

technical field [0001] The invention relates to a superheated steam treatment device for steam injection in an oil field, in particular to a superheated steam desalination device for a superheated boiler for steam injection in an oil field and a use method thereof. Background technique [0002] In order to further improve the production capacity of heavy oil, oil field production began to put into use oil field steam injection superheating boiler. In this way, the enthalpy of steam is increased and the recovery of crude oil is improved, but new problems are also created. This is because the feed water of the superheated boiler is demineralized water, which contains a certain amount of salt. This part of dissolved salt will be precipitated into crystallized salt during the production and use of superheated steam, and will eventually affect the boiler mixer, steam injection pipeline, downhole pipe string and The clogging of the oil pump and even the oil layer will have a grea...

Claims

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Application Information

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IPC IPC(8): F22G7/00E21B43/24
Inventor 张宏伟王子阳
Owner 张宏伟
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