High-pressure pipeline gas and liquid reactor for hydrogen sulfide treatment of oil well and treatment method thereof

A technology of gas-liquid reactors and high-pressure pipelines, which is applied to chemical instruments and methods, chemical methods for reacting liquid and gaseous media, and hydrocarbon oil treatment, which can solve the problems of huge equipment processing costs, long residence time, and mass transfer efficiency. Low-level problems, to achieve the effect of thorough desulfurization effect, convenient management and maintenance, and high efficiency of dissolved gas

Active Publication Date: 2018-04-17
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a high-pressure pipeline gas-liquid reactor for oil well hydrogen sulfide treatment and its treatment method in view of the above-mentioned deficiencies in the prior art. Mixed double-action equipment, through multi-stage gas supply, and using the high-pressure environment of the pipeline, the oxygen in the supplied air enters the output liquid in a dissolved state, transforming the gas-liquid reaction into a liquid-liquid reaction, and greatly improving the hydrogen sulfide treatment. The speed solves the problems of low mass transfer efficiency, long residence time, huge equipment and high processing cost in the existing oil well hydrogen sulfide treatment method

Method used

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  • High-pressure pipeline gas and liquid reactor for hydrogen sulfide treatment of oil well and treatment method thereof

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Embodiment 1

[0044] Well A in a block of Shengli Oilfield 12 , the fluid production of the oil well is 16m 3 / d, the hydrogen sulfide content in the produced fluid is 200mg / L, and this well is an oil well with high hydrogen sulfide content. The hydrogen sulfide in the well output fluid is processed online by using the invention.

[0045] The inner diameter of the high-pressure pipeline gas-liquid reactor is 65mm; the shape of the dissolved gas mixer is a spindle, the length is 100mm, and the height is 40mm. The diameter of the gas release hole on the spindle is 3μm, and the hole spacing is 2mm; the distance between the dissolved gas mixer The value of n is 1m, and the value of n is 4. The results of hydrogen sulfide, dissolved oxygen and air supply at each node in the produced fluid are shown in Table 1.

[0046] Table 1 Well A 12 The amount of hydrogen sulfide and dissolved oxygen and air supply at each node of the produced liquid

[0047] mixer

[0048] As can be seen from ...

Embodiment 2

[0050] Well A in a block of Shengli Oilfield 15 , the fluid production of the oil well is 30m 3 / d, the hydrogen sulfide content in the produced fluid is 750mg / L, and this well is an oil well with high hydrogen sulfide content. The hydrogen sulfide in the well output fluid is processed online by using the invention.

[0051] The inner diameter of the high-pressure pipeline gas-liquid reactor is 80mm; the shape of the dissolved gas mixer is a hollow cylinder, the length is 120mm, and the height is 60mm. The diameter of the gas release hole on the hollow cylinder is 4μm, and the hole spacing is 1mm; the dissolved gas mixer The distance between them is 1.5m, and the value of n is 7. The results of hydrogen sulfide, dissolved oxygen and air supply at each node in the produced fluid are shown in Table 2.

[0052] Table 2 Well A 15 The amount of hydrogen sulfide and dissolved oxygen and air supply at each node of the produced liquid

[0053] mixer

[0054] As can be se...

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Abstract

The invention belongs to the field of safety production and environment protection, and particularly relates to a high-pressure pipeline gas and liquid reactor for hydrogen sulfide treatment of an oilwell and a treatment method thereof. The high-pressure pipeline gas and liquid reactor consists of a gas supply unit, a dissolved gas mixing reaction unit and an automatic control unit, wherein the gas supply unit is connected with the dissolved gas mixing reaction unit, and is used for supplying required oxygen for the dissolved gas mixing reaction unit; the automatic control unit is used for detecting the contents of hydrogen sulfide and dissolved oxygen in each node of the dissolved gas mixing reaction unit, and controlling the supply amount of oxygen in each node of the dissolved gas mixing reaction unit. The high-pressure pipeline gas and liquid reactor has the advantages that the equipment is compact, and the land occupation area is small; the automation degree is high, and the maintenance is convenient; the treatment is performed at high pressure, the pressure-relief releasing and pressurizing transportation process of the hydrogen sulfide gas is not needed, and the energy consumption is low; by adopting the multiple stages of gas supply, the gas is uniformly distributed, the gas dissolving efficiency is high, the utilization rate of the gas is high, the treatment effect isgood, and the removal rate of the hydrogen sulfide reaches 99.5% or above; the high-pressure pipeline gas and liquid reactor can be widely applied into the hydrogen sulfide treatment technology of the oil well.

Description

technical field [0001] The invention relates to a high-pressure pipeline gas-liquid reactor used for hydrogen sulfide treatment in oil wells and a treatment method thereof, belonging to the fields of safe production and environmental protection. Background technique [0002] With the continuous development of thermal recovery of heavy oil, a large number of oil wells with high hydrogen sulfide content have appeared in Shengli, Zhongyuan, Liaohe and other oil fields. The hydrogen sulfide content of individual oil wells is as high as 2000 mg / L. There is a major threat to security. At present, the treatment of hydrogen sulfide associated with oil wells mainly uses solid desulfurizers mainly based on hydroxyl iron and liquid desulfurizers based on alcohol amines. The amount of desulfurizer is large, and the cost of preparation and regeneration is high. The desulfurization reaction mainly adopts an atmospheric tower desulfurization device, and the object of treatment is hydroge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J10/00C10G29/02
CPCB01J10/00C10G29/02B01J2219/00184B01J2219/00186C10G2300/1033
Inventor 袁长忠张守献潘永强徐鹏徐闯汤晓东冯云曹嫣镔宋永亭曹功泽
Owner CHINA PETROLEUM & CHEM CORP
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