Lower paleozoic sulfur-containing natural gas and upper paleozoic sulfur-free natural gas commingled producing system

A technology of natural gas and gas outlet, which is applied in the direction of fluid extraction, earthwork drilling, wellbore/well components, etc. It can solve the problems of waste of resources, small-scale development and non-utilization of ancient gas reservoirs, and achieve the effect of reducing engineering construction investment

Pending Publication Date: 2019-07-12
XIAN CHANGQING TECH ENG +1
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Problems solved by technology

The development scale of the lower ancient gas reservoir is small, and the gathering and transportation system is established separately, and the existing ancient export transportation system is not used, so there are problems of huge investment and waste of resources

Method used

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  • Lower paleozoic sulfur-containing natural gas and upper paleozoic sulfur-free natural gas commingled producing system
  • Lower paleozoic sulfur-containing natural gas and upper paleozoic sulfur-free natural gas commingled producing system

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Embodiment Construction

[0025] First of all, it needs to be explained that in each embodiment of the present invention, the terms involved are:

[0026] Liquid desulfurization device 4, in the present invention, a triazine desulfurization agent can be stored inside the liquid desulfurization device, and the liquid desulfurization device uses triazine desulfurization agent to remove hydrogen sulfide in the gas. The specific desulfurization is based on the desulfurization tower principle in the prior art, which is the current There are known technologies in the art; or the liquid desulfurization device 4 adopts the patent applied by the inventor: "An integrated device for desulfurization based on triazine solution"; application number: CN201721894545.7.

[0027] Desulfurization agent storage tank 11 is a storage container for storing triazine desulfurization agent, which is provided with check valve, gate valve, quick joint, explosion-proof flame arrester, and the specific desulfurization device can als...

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Abstract

The invention discloses a lower paleozoic sulfur-containing natural gas and upper paleozoic sulfur-free natural gas commingled producing system, and belongs to the field of petroleum engineering. Thelower paleozoic sulfur-containing natural gas and upper paleozoic sulfur-free natural gas commingled producing system includes a lower plaeozoic outside transmission system and an upper plaeozoic outside transmission system, wherein a gas transmission pipeline of the lower paleozoic outside transmission system is connected to a gas transmission pipeline of the upper plaeozoic outside transmissionsystem; the lower plaeozoic outside transmission system includes a first gas-liquid separation device, a heating device and a liquid desulfurizer, in the area of an upper plaeozoic gas reservoir, a new lower plaeozoic outside transmission system is not needed to be established, the established upper plaeozoic outside transmission system is used, thus sulfur-containing natural gas in a lower plaeozoic well can be safely transmitted to a treatment plant, desulfuration treatment is conducted, commingled producing of an upper plaeozoic well and the lower plaeozoic well is achieved, and the purposeof lowering the investment of engineering construction is achieved.

Description

technical field [0001] The invention belongs to the field of natural gas purification, and is applied to the gas collection, treatment and export of the lower paleo-gas reservoirs in the main area of ​​the above-mentioned paleo-gas reservoirs, and specifically relates to a combined production system of the lower paleo-sulfur natural gas and the ancient sulfur-free natural gas. Background technique [0002] The Sulige Gas Field of Changqing Oilfield focuses on the development of ancient gas reservoirs. The natural gas treatment process of the ancient gas gathering stations in the area is as follows: after the natural gas from each gas production main pipeline is collected by the general authority of the station, it enters production separation under normal temperature conditions The natural gas separated from the free water is transported outside after metering. [0003] At present, the Sulige Gas Field is developing lower paleo gas pools in the upper paleo gas pool area. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00E21B43/34
CPCE21B43/00E21B43/34
Inventor 葛涛薛岗王登海郑欣胡建国刘银春杨光高玉龙王潜忠张颖李星赵一农李曙华
Owner XIAN CHANGQING TECH ENG
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