CN201696005U

CN201696005U - Sand setting device for plug of sieve tube of oil-well pump

Info

Publication number: CN201696005U
Application number: CN2010202323160U
Authority: CN
Inventors: 成道亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-10
Filing date: 2010-06-10
Publication date: 2011-01-05
Anticipated expiration: 2020-06-10

Abstract

The utility model relates to a device for checking a sand control facility, in particular to a sand setting device for a plug of a sieve tube of an oil-well pump, which comprises a fish top (1), a packer (2), a signal sieve tube (3), a wire winding tube (4) and a well tail tube (5) of the oil-well pump and is characterized in that the lower end of the well tail tube (5) of the oil-well pump is provided with a plug (6); a sieve tube (7) is arranged between the well tail tube (5) of the oil-well pump and the plug (6); and the sieve tube (7) consists of a sieve tube with holes and a tail tube (8) of the sieve tube. By adopting the above structure, the sand can be sunk in the tail tube of the sieve tube when the liquid flows into the sieve tube. The sand content, sand size and sand type can be checked on site by dismounting the plug, thereby judging whether the sand control facility is damaged or not; if the tail tube of the sieve tube has no sand or minimum sand, a center tube is not necessarily detected, the sticking of the pump by the sand owing to power failure and maintenance of well head equipment is reduced, and the wear of the oil-well pump, a sucker rod and an oil pipe on the pump can be reduced, thereby prolonging the service life of the oil well.

Description

Oil well pump screen casing plug sand setting

One, technical field: the utility model relates to a kind of device of checking sand control measure, especially a kind of oil well pump screen casing plug sand setting.

Two, background technology: in the prior art because of environmental protection, safety, cleaning problems, when need checking the R a T of oil well pump, the kill-job that must at first circulate, whether as for shaking out in the well, originally whether the interior sand control measure of well damages and can't grasp.So when changing pump, must go into the well once more, visit slot pipe, wrapping wire pipe, clad pipe towards the central tube operation.And the well of sand screen sand control can't be visited central tube, just can not judge accurately whether sand screen destroys, sand buries.Reasons such as well internal cause casing deformation cause and can not carry out mechanical sand control and coagulability sand control, cause sand card, foreign material to enter when stopping well because of power failure, wellhead equipment maintenance etc. to cause pump to stop up in the pump not fuel-displaced.

Three, summary of the invention: the purpose of this utility model is exactly the defective that exists at prior art, and a kind of simple in structure, with low cost, oil well pump screen casing plug sand setting that can reduce the sand holddown is provided.Oil well pump screen casing plug sand setting comprises top of fish, packer, tell tale screen, wrapping wire pipe, oil pumping well tail pipe, lower end at the oil pumping well tail pipe is provided with plug, be provided with screen casing between between oil pumping well tail pipe and the plug, screen casing comprises screen casing and the screen casing tail pipe two parts that are provided with the hole.Between described oil pumping well tail pipe and the screen casing, and be between screen casing and the plug and be threaded.Adopt after the said structure, liquid enters the interior sand of screen casing just can sink to the screen casing tail pipe.Unload plug just can site inspection sand amount what, the type of sand grains size, sand, thereby judge whether sand control measure damages; If the screen casing tail pipe does not have sand or the sand amount is minimum, just can visit towards central tube.Can reduce because of power failure, wellhead equipment keep in repair and cause the sand holddown.Can reduce the wearing and tearing of oil pipe on oil well pump, sucker rod, the pump, thereby prolong oil well application life.Can also prevent because of certain rubber accessory in the well damage enter cause in the pump not fuel-displaced.Since simple in structure, with low cost, reduced a large amount of spy central tube operations, thereby reduced cost, increase output.

Four, description of drawings: accompanying drawing is a structural representation of the present utility model;

Five, the specific embodiment

Oil well pump screen casing plug sand setting comprises top of fish 1, packer 2, tell tale screen 3, wrapping wire pipe 4, oil pumping well tail pipe 5, be provided with plug 6 in the lower end of oil pumping well tail pipe 5, be provided with screen casing 7 between oil pumping well tail pipe 5 and plug 6, screen casing 7 comprises screen casing and screen casing tail pipe 8 two parts that are provided with the hole.Between described oil pumping well tail pipe 5 and the screen casing 7, and be between screen casing 7 and the plug 6 and be threaded.

Claims

1. oil well pump screen casing plug sand setting, comprise top of fish (1), packer (2), tell tale screen (3), wrapping wire pipe (4), oil pumping well tail pipe (5), it is characterized in that: be provided with plug (6) in the lower end of oil pumping well tail pipe (5), be provided with screen casing (7) between oil pumping well tail pipe (5) and plug (6), screen casing (7) comprises screen casing and screen casing tail pipe (8) two parts that are provided with the hole.

2. oil well pump screen casing plug sand setting according to claim 1 is characterized in that: between described oil pumping well tail pipe (5) and the screen casing (7), and be between screen casing (7) and the plug (6) and be threaded.