Water body pressurizing and quick-discharging device for water-drive gas reservoir flooded well
A technology for water-driven gas and well flooding, which can be applied to other gas emission reduction technologies, valve devices of wellbore/well, and production fluids, etc., and can solve problems such as waste of resources, affecting gas production and efficiency, and flooding in wells.
Inactive Publication Date: 2021-05-11
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology
[0003] In the process of water flooding gas reservoirs, sometimes there will be water flooding in the well, resulting in production shutdown, failure to discharge water in time will affect gas production and efficiency, and at the same time, part of the natural gas will dissolve in water, resulting in waste of resources
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[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0024] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for...
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The invention discloses a water body pressurizing and quick-discharging device for a water-drive gas reservoir flooded well. The water body pressurizing and quick-discharging device comprises a round supporting block, an annular groove, an annular rubber sheet, a gas guide pipe, a water pumping pipe, a round plate, a round carrying plate, a round flat box, a first electric adjusting valve, a bent pipe, a water pump, a winding drum, a motor, a gas injection pump, an exhaust pipe, a second electric adjusting valve, a check valve, a hole channel and a gas charging nozzle. The water body pressurizing and quick-discharging device is reasonable in structure, the annular rubber sheet can be expanded to make contact with the inner annular wall of a well mouth of a gas well, the well mouth of the gas well can be sealed, and the water body pressurizing and quick-discharging device is suitable for being used for part of gas wells with different calibers; the gas injection pump is operated firstly to inject external carbon dioxide gas into the sealed gas well, the gas pressure in the well can be increased, fuel gas mixed into a water body can be separated out and discharged into a gas centralized storage container, subsequent purification and separation are facilitated, and the yield loss of the gas well is reduced; and flooded water in the gas well can be quickly pumped out, quick repair is facilitated, and the gas production quality and efficiency are guaranteed.
Description
technical field [0001] The application relates to a device for pressurizing and draining water bodies, in particular to a device for pressurizing and draining water bodies for flooded wells in water drive gas reservoirs. Background technique [0002] Due to the important position of water drive gas reservoirs in the development of natural gas, since the 1950s, domestic and foreign scientific and technological workers have carried out a large number of theoretical, experimental and gas field research work on many difficulties in the development of water drive gas reservoirs. The Sichuan Basin of my country Natural gas fields have a long history of development. Counting from the Weiyuan Gas Field, water drive gas reservoirs have done a lot of scientific research for more than 30 years and achieved gratifying results. The gas reservoirs have entered the stage of gas and water co-production. It indicates that the water invasion of the gas reservoir has been directly exposed in the...
Claims
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IPC IPC(8): E21B43/16E21B34/02E21B43/00E21B33/03
CPCE21B43/164E21B34/02E21B43/121E21B33/03Y02P90/70
Inventor 张亚平陈军柴文杰
Owner SOUTHWEST PETROLEUM UNIV