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Ground gathering and transportation system for depleted gas reservoir gas storage

A technology of gathering and transportation system and gas storage, which is applied in the field of surface process and equipment to achieve the effect of delaying the formation speed, reducing liquid accumulation and eliminating slug flow

Active Publication Date: 2020-09-11
SINOPEC ZHONGYUAN PETROLEUM ENG DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports and studies on the surface gathering and transportation system for depleted gas reservoirs. Therefore, it is necessary to study the surface gathering and transportation technology suitable for underground gas storage of depleted gas reservoirs, so that the process parameters, process equipment, and process flow can meet the characteristics of natural gas in depleted gas reservoirs. , while optimizing the gathering and transportation process and reducing engineering costs

Method used

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  • Ground gathering and transportation system for depleted gas reservoir gas storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The preparation method of the hydrate inhibitor comprises the following steps,

[0064] Step 1: Add 0.1 mol of N-dimethylaminomethacrylate, 0.05 mol of 2-vinyl-4,6-diamino-1,3,5-triazine, 0.05 mol of 1,3-divinyl- 0.05 mol of 2-imidazolinone and 200 ml of deionized water were added, and an emulsifier was added, and the temperature was raised to 70°C under the protection of nitrogen, and mixed uniformly to obtain a mixed solution A. The emulsifier is a composition of SDS and AEO-9, and the mass of both SDS and AEO-9 is 0.11g.

[0065] Step 2: Dissolve 0.1g of potassium persulfate in 18ml of deionized water, slowly add it dropwise to the mixed solution A obtained in step 1 after the dissolution is completed, and continue the reaction for 5 hours after the dropwise addition is completed.

[0066] Step 3: After the reaction is completed, the condensate is filtered, centrifuged, and dried to obtain a solid product, which is the prepared product.

Embodiment 2

[0068] The preparation method of the hydrate inhibitor comprises the following steps,

[0069] Step 1: Add 0.3mol of N-dimethylaminomethacrylate, 0.15mol of 2-vinyl-4,6-diamino-1,3,5-triazine, 0.15mol of 1,3-divinyl- 0.15 mol of 2-imidazolidinone and 200 ml of deionized water were added, and an emulsifier was added, and the temperature was raised to 70° C. under the protection of nitrogen, and mixed uniformly to obtain a mixed solution A. The emulsifier is a composition of SDS and AEO-9, and the quality of both SDS and AEO-9 is 0.15g.

[0070] Step 2: Dissolve 0.1g of potassium persulfate in 18ml of deionized water, slowly add it dropwise to the mixed solution A obtained in step 1 after the dissolution is completed, and continue the reaction for 5 hours after the dropwise addition is completed.

[0071] Step 3: After the reaction is completed, the condensate is filtered, centrifuged, and dried to obtain a solid product, which is the prepared product.

Embodiment 3

[0073] The preparation method of the hydrate inhibitor comprises the following steps,

[0074] Step 1: Add 0.5 mol of N-dimethylaminomethacrylate, 0.3 mol of 2-vinyl-4,6-diamino-1,3,5-triazine, 0.3 mol of 1,3-divinyl- 0.3 mol of 2-imidazolinone and 200 ml of deionized water were added, and an emulsifier was added, and the temperature was raised to 70°C under the protection of nitrogen, and mixed uniformly to obtain a mixed solution A. The emulsifier is a combination of SDS and AEO-9, both of which have a mass of 0.21 g.

[0075] Step 2: Dissolve 0.1g of potassium persulfate in 18ml of deionized water, slowly add it dropwise to the mixed solution A obtained in step 1 after the dissolution is completed, and continue the reaction for 5 hours after the dropwise addition is completed.

[0076] Step 3: After the reaction is completed, the condensate is filtered, centrifuged, and dried to obtain a solid product, which is the prepared product.

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Abstract

The invention belongs to the technical field of ground process flow and equipment of underground gas storage, and particularly relates to a ground gathering and transportation system for a depleted gas reservoir gas storage. The ground gathering and transportation system for the depleted gas reservoir gas storage is installed between a gas storage well head and an external transportation pipelineand realizes connection through a pipeline and a valve group. The ground gathering and transportation system comprises a slug flow catcher, an air cooler, a cyclone separator, a filter separator, a triethylene glycol dewatering device, a natural gas compressor, an emptying torch, a metering separator, a produced water storage tank, a well head gas production tree, a valve group and an emptying valve group, wherein the valve group and the emptying valve group are installed on the pipeline; and an injection device is arranged on the pipeline portion behind the slug flow catcher. According to thesystem, the same set of pipeline and device are adopted as the gas injection and gas production process conveying system for the gas storage, so that the recycling of the gas injection-gas productionpipeline and device is realized, and the construction capacity and the construction cost are greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of ground process flow and equipment of underground gas storage, and in particular relates to a ground gathering and transportation system for depleted gas storage gas storage. Background technique [0002] Many natural gas users have a large difference in gas consumption between winter and summer. Generally, the gas consumption in winter is higher than that in summer. In extreme cases, the gas consumption in winter will be 6 to 10 times that in summer. Peak shaving, that is, when the market gas consumption in summer is lower than the pipeline gas transmission capacity, the excess gas is stored in the underground gas storage, and in winter, when the user's gas consumption exceeds the pipeline transmission capacity, natural gas is extracted from the underground gas storage to supply users . In addition, the gas consumption will vary at different times of the day, and the gas storage is also required for peak...

Claims

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Application Information

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IPC IPC(8): F17D1/02F17D3/01F17D3/14F17D3/12C08F226/02C08F226/06
CPCC08F226/02F17D1/02F17D3/01F17D3/12F17D3/145C08F226/06
Inventor 仝淑月高继峰孙娟宋世昌周树青陈清涛公明明宋燕
Owner SINOPEC ZHONGYUAN PETROLEUM ENG DESIGN
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