Jet flow well flushing device
A technology of well flushing and jetting device, which is applied to cleaning appliances, wellbore/well components, earth-moving drilling, etc., can solve the problems of waste of resources, inability to inject water into oil wells, and decrease in injection volume, etc.
Inactive Publication Date: 2014-01-15
SHAANXI SHENGMAI PETROLEUM
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Problems solved by technology
[0002] In order to prolong the service life of the packer and improve the sealing rate, some water injection wells in Daqing Oilfield have installed non-flushable packer layered tubing. Since the well cannot be flushed, the injection rate of some wells has decreased after a long time. A large amount of oil pollution accumulates in the well, resulting in the situation that the oil well cannot be injected with water, and the oil well packer needs to be replaced as a whole, resulting in a waste of resources
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[0009] A water injection well flushing device according to the present invention includes a hollow cylindrical body 1, inside the body 1 is provided a plugging device 2 that is movably arranged inside the body 1, and a part of the side wall of the body 1 is extended to the outside to be provided with a jet device, the jet device is provided with a water inlet and a water outlet, the water inlet extends to the outside of the body 1, and the water outlet communicates with the inside of the body 1, and the water inlet and the water outlet are respectively provided with the blocker 2 On both sides, a trumpet-shaped jet 3 and a funnel-shaped nozzle 4 are provided inside the jet device. The funnel-shaped nozzle 4 and the trumpet-shaped jet 3 are nested with each other, and the funnel-shaped nozzle 4 is arranged at the water inlet.
[0010] A water injection well flushing device according to the present invention connects the jet flushing device to the oil pipe, and sets it on the upp...
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The invention discloses a well flushing device of a water injection well and relates to a well flushing device, in particular to a well flushing device utilizing jet flow for flushing a well. The well flushing device of the water injection well comprises a hollow cylindrical body, and a packer arranged in the body is movably arranged in the body. Part of the side wall of the body extends to the outside of the side wall of the body and is provided with a jet flow device. A water inlet and a water outlet are formed in the jet flow device. The water inlet extends to the outside of the body, and the water outlet is communicated with the interior of the body. The water inlet and the water outlet are formed in the two sides of the packer respectively. The well washing device of the water injection well is connected to an oil pipe in a sleeved mode, when water is injected normally, the packer is opened, when well flushing work is performed, the packer is blocked, flushing fluid can be injected from a casing pipe, and the flushing liquid enters from the water inlet and is discharged from the water outlet. The jet flow well flushing device is simple in structure and high in practicability.
Description
technical field [0001] The invention relates to a well flushing device, in particular to a well flushing device utilizing jet flow to flush wells. Background technique [0002] In order to prolong the service life of the packer and improve the sealing rate, some water injection wells in Daqing Oilfield have installed non-flushable packer layered tubing. Since the well cannot be flushed, the injection rate of some wells has decreased after a long time. A large amount of oil is accumulated in the well, resulting in the situation that the oil well cannot be injected with water, and the oil well packer needs to be replaced as a whole, resulting in a waste of resources. Contents of the invention [0003] The present invention aims to provide a water injection well flushing device. [0004] A water injection well flushing device according to the present invention comprises a hollow cylindrical body, the inside of the body is provided with a plugging device which is movable insi...
Claims
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IPC IPC(8): E21B37/00
Inventor 王耀斌
Owner SHAANXI SHENGMAI PETROLEUM