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A kind of formation water hydrogen sulfide treatment device

A treatment device and formation water technology, applied in the field of formation water treatment, can solve the problems of surface soil pollution, formation collapse, and less formation water, and achieve the effects of avoiding collapse, avoiding irreversible pollution and improving efficiency.

Active Publication Date: 2022-07-08
北京中科鑫宇科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wet process mainly includes the absorption method and the wet oxidation method; currently, when the hydrogen sulfide in the formation water is taken out by the wet oxidation method, the formation water is directly discharged after the removal is completed, which will easily cause the pollution of the surface layer of the land. The formation water is pumped out, resulting in less formation water, which is likely to cause formation subsidence, which brings risks to later oil and gas acquisition

Method used

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  • A kind of formation water hydrogen sulfide treatment device
  • A kind of formation water hydrogen sulfide treatment device
  • A kind of formation water hydrogen sulfide treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] like figure 1 A formation water hydrogen sulfide treatment device, comprising a water pumping pipe 6 placed in a water extraction hole 1, a reinjection pipe 8 placed in a reinjection hole 2, and the collected formation water is processed and communicated through pipelines in turn. The stirring gas-liquid processing device 3, the oxidation processing device 4 and the aeration processing device 5; the stirring gas-liquid processing device 3 mainly fully stirs the extracted formation water. Since hydrogen sulfide is slightly soluble in water, it is The hydrogen sulfide contained in the extracted formation water is in a supersaturated state, and in the case of sufficient stirring, the hydrogen sulfide in the supersaturated state in the bottom water can be separated; To oxidize the formation water after the initial removal of hydrogen sulfide, specifically, introduce an oxidant (alkaline substance, such as calcium hydroxide and other materials) into the oxidation treatment d...

Embodiment 2

[0052] On the basis of Example 1, it is ensured that the stirring gas treatment device can stir the hydrogen sulfide in the supersaturated state of the formation water, such as image 3 and Figure 4 The stirring gas-liquid processing device 3 includes a stirring box 301, the upper part of the stirring box 301 is provided with a gas-liquid separation component 303, and the side wall of the stirring box 301 at the lower part of the gas-liquid separation component 303 is provided with an inlet and outlet. The water inlet pipe 302 communicated with the water pipe 7, the bottom of the stirring box 301 is provided with a water outlet pipe 304 communicated with the oxidation treatment device 4;

[0053] A circular roller 307 is arranged in the stirring box 301 at the lower part of the gas-liquid separation assembly 303, and a plurality of water receiving grooves 3071 are arranged around the circumferential surface of the roller 307. The circular roller 307 is close to the water inle...

Embodiment 3

[0062] On the basis of Example 1, in order to ensure that the oxidation treatment device 4 can fully treat the hydrogen sulfide in the formation water, and at the same time, it can be filtered after the treatment, and the formation water will not cause corrosion to the filter screen (the formation water contains After hydrogen sulfide is acidic, it will cause corrosiveness to the filter), such as Figure 7The oxidation treatment device 4 includes an oxidation treatment box 401, the upper part of the oxidation treatment box 401 is provided with a liquid inlet 403 communicated with the stirring gas-liquid treatment device 3, and the bottom is provided with a liquid outlet 404 communicated with the aeration treatment device 5 ;

[0063] The middle and lower part of the oxidation treatment box 401 is provided with a fixed partition plate 409, and the lower end surface of the fixed partition plate 409 is movably connected with a rotating plate 410; The fixed baffle 409 and the rot...

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Abstract

The invention relates to a hydrogen sulfide processing device for formation water, comprising a water pumping pipe, a reinjection pipe, a stirring gas-liquid processing device, an oxidation processing device and an aeration processing device which are sequentially communicated through pipelines; The slips are fixedly connected to the inner wall of the water-producing hole; a packer is arranged between the reinjection pipe and the reinjection pipe string lowered into the reinjection hole, and the packer is in sealing and sliding contact with the end face in contact with the reinjection pipe string; The end face of the packer in contact with the outer wall of the reinjection pipe is sealed and slidingly connected; the end face of the reinjection pipe is provided with a plurality of vertical chutes parallel to the center line of the reinjection pipe, and the end face of the packer close to the reinjection pipe is provided with For the slider matched with the chute, a plurality of positioning shearing pins are intermittently arranged in the chute, and the upper end face of the slider is provided with a conical shearing end; it can effectively treat the hydrogen sulfide in the formation water, The treated formation water is reinjected to avoid the risk of surface soil pollution and formation collapse.

Description

technical field [0001] The invention relates to the technical field of formation water treatment, in particular to a formation water hydrogen sulfide treatment device. Background technique [0002] Hydrogen sulfide has the characteristics of high toxicity, strong corrosiveness and odor, and is also the main sulfur-containing component in petroleum and natural gas. With the increase of energy demand, my country's exploration and development of high hydrogen sulfide oil and gas fields has been increasing. Hydrogen sulfide in the output of oil and gas wells will not only cause corrosion of pipelines and equipment, but also seriously threaten personal safety. There are many techniques for removing hydrogen sulfide in the process of oil and gas field development. However, simple, economical and effective hydrogen sulfide removal technology and equipment are still difficult problems that need to be continuously explored and studied. According to the state of the substance, it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F103/06C02F101/10
CPCC02F9/00C02F2103/06C02F1/20C02F1/68C02F1/72C02F7/00C02F1/001C02F2101/101C02F1/74Y02W10/10
Inventor 李爱荣武富礼张惠张凤奇
Owner 北京中科鑫宇科技发展有限公司