A kind of downhole-choke release tool
Technical field
The utility model relates to petroleum industry downhole tool field, especially a kind of downhole-choke discharges tool.
Background technique
Early period is generated in the oil/gas well that self-spray generates, for the cooling that throttles, suitable speed of production is kept, prevents water logging etc.
Formation damage, generally all can using underground install flow controller by the way of carry out self-spray generation.But with the propulsion of production period, ground
Layer water outlet is increasingly severe, will cause kill-job, it is also possible to the favor of flow nipple blocking occurs, yield is caused to reduce, or even stop production.
It just needs to take out flow controller at this time, but due to underground hole condition complexity, the case where salvaging fails is likely encountered when salvaging flow controller, and
Show at one's wit's end after repeatedly salvaging failure, not only cost pressure is high, and oil/gas well can not also resume production.
Currently, a kind of downhole tool energy is in view of the above-mentioned problems, carry out release drifting to flow nipple, to re-establish not yet
Production of hydrocarbons channel.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of downhole-choke release tool, according to throttling
The design feature of device devises the flow nipple release drifting tool being simple and efficient, solves downhole-choke blocking and can not beat
Fishing leads to not the problem of restoring oil/gas well production.
To achieve the above object, the technical scheme adopted by the utility model is
A kind of downhole-choke release tool, cylindrical ontology, sliding block and the through rod including coaxial arrangement, the through rod
Upper end is connect with the ontology lower end, forms slideway, and the sliding block is freely set on the slideway, and is existed by pin limit
The slideway lower part;The top connection for connecting connector is arranged in the body upper part;The internal diameter of the sliding block, which is less than, states through rod
Outer diameter, sliding block outer diameter be greater than the through rod outer diameter;The length of the through rod is 350mm-510mm;The outer diameter of the sliding block
Diameter than flow controller runner to be released is 10-15mm big, and the outer diameter of the through rod is less than the internal diameter of flow controller runner to be released.?
When carrying out release operation, through rod enters in flow controller runner, hits flow nipple, and sliding block plays position-limiting action.
Further, block is arranged in the middle part of the ontology, slide bar is arranged in lower part, and link slot, the ontology is arranged in bottom
It is connect by link slot with the through rod.
Further, the through rod lower part is through rod ontology, male threaded joint, institute is arranged in through rod ontology upper end
Male threaded joint upper end setting limited block is stated, the through rod upper end passes through the interior spiral shell in male threaded joint and the link slot
The ontology is connect by the threaded connection of line interconnecting piece with the through rod.It is good to be threadedly coupled easy to disassemble and tightness.
Further, the outer diameter of the through rod ontology upper end step is greater than the outer diameter of the slide bar, the through rod ontology
Upper end step, slide bar and the block form the slideway.Sliding block is freely set on slideway, is not carrying out pin to sliding block
When limit, sliding block can freely up and down slide between block and the upper end step of through rod ontology along slideway, will when connecting through rod
Sliding block is slided into close to the position of block, facilitates the connection of through rod and ontology.
Further, cotter slot is arranged in the slide bar lower part, it is correspondingly arranged pin hole on the sliding block, the pin is worn
It crosses pin hole and limits in cotter slot.Sliding block is limited in the position of cotter slot, and sliding block can be freely rotated along cotter slot, more
It goes into the well conducive to tool.
Further, screw slots are set between the male threaded joint and the limited block, the slide bar lower part setting
Screw hole corresponding with the screw slots, the screw hole are connected by screw to the screw slots.Prevent ontology and through rod can
It falls off existing for energy, the reliability that raising tool is used in underground.
Further, the outside face thereof is symmetrical arranged two parallel faces.Convenient for tightening operation when tool assembly.
It should be noted that as those skilled in the art, it is readily appreciated that the utility model is for downhole-choke
Release tool, entirety is cylinder, and therefore, not excessive restriction here is the cognition based on common sense, does not represent not
There is restriction.
The beneficial effects of the utility model are:
Compared with prior art, the utility model provides a kind of completely new downhole-choke release drifting tool, can lead to
The steel wire operation for crossing low cost is completed to carry out the downhole-choke that can not be salvaged release drifting, restores oil/gas well and normally produces,
And its structure is simple, and it is easy to assembly, it is easy to operate.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 is the example structure schematic diagram that the utility model discharges tool;
Fig. 2 is body construction schematic diagram in the utility model embodiment;
Fig. 3 is slide block structure schematic diagram in the utility model embodiment;
Fig. 4 is sectional view of the Fig. 3 along the direction A-A;
Fig. 5 is through rod structural schematic diagram in the utility model embodiment;
Fig. 6 is that ontology connect the structural schematic diagram to form slideway with through rod in the utility model embodiment;
In figure: 1, ontology;11, top connection;12, block;13, slide bar;132, slideway;14, link slot;141, internal screw thread connects
Socket part;15, cotter slot;16, screw hole;2, sliding block;21, slideway;22, pin hole;3, through rod;31, through rod ontology;32, outer spiral shell
Line interconnecting piece;33, limited block;34, screw slots;4, pin;5, screw.
Specific embodiment
It is practical to this below with reference to embodiment in order to keep the purpose of this utility model, technical solution and advantage clearer
It is novel to be further elaborated, but be not the limitation to scope of protection of the utility model.It needs in the description of the present invention,
Understand, the orientation or positional relationship of the instructions such as term " on ", "lower", "top", "bottom", "inner", "outside" is to be made based on underground
Orientation or positional relationship of the tool in well, is merely for convenience of describing the present invention and simplifying the description when industry, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitations of the present invention.
As shown in figs. 1 to 6, a kind of downhole-choke discharges tool, cylindrical ontology 1, sliding block 2 including coaxial arrangement
With through rod 3,3 upper end of through rod is connect with 1 lower end of ontology, forms slideway 132, and the sliding block 2 is freely set in described
On slideway 132, and limited by pin 4 in 132 lower part of slideway;
The top connection 11 for connecting connector is arranged in 1 top of ontology;The internal diameter of the sliding block 2, which is less than, states through rod 3
Outer diameter, 2 outer diameter of sliding block be greater than the through rod 3 outer diameter;The length of the through rod 3 is 350mm-510mm;
The outer diameter of the sliding block 2 is 10-15mm bigger than the diameter of flow controller runner to be released, and the outer diameter of the through rod 3 is less than
The internal diameter of flow controller runner to be released.
As a kind of prioritization scheme, block 12 is set, slide bar 13, bottom setting connection is arranged in lower part in the middle part of the ontology 1
Slot 14, the ontology 1 are connect by link slot 14 with the through rod 3.
As a kind of prioritization scheme, 3 lower part of through rod is through rod ontology 31, and outer spiral shell is arranged in 31 upper end of through rod ontology
Limited block 33 is arranged in line interconnecting piece 32,32 upper end of male threaded joint, and 3 upper end of through rod passes through male threaded joint 32
With the threaded connection of the female threaded joint 141 in the link slot 14, the ontology 1 is connect with the through rod 3.
As a kind of prioritization scheme, the outer diameter of 31 upper end step of through rod ontology is greater than the outer diameter of the slide bar 13, institute
Upper end step, slide bar 13 and the block 12 for stating through rod ontology 31 form the slideway 132.
As a kind of prioritization scheme, cotter slot 15 is arranged in 13 lower part of slide bar, is correspondingly arranged pin hole on the sliding block 2
22, the pin 4 passes through pin hole 22 and limits in cotter slot 15.
As a kind of prioritization scheme, screw slots 34 are set between the male threaded joint 32 and the limited block 33, it is described
Screw hole 16 corresponding with the screw slots 34 is arranged in 13 lower part of slide bar, and the screw hole 16 passes through screw with the screw slots 34
5 connections.
As a kind of prioritization scheme, 2 outer surface of sliding block is symmetrical arranged two parallel faces.
The working principle of the utility model tooling is as follows:
The tool of the utility model is assembled according to Fig. 1 when in use, by tool, using steel wire operation, is connect in connection
First 11, to throttling mouth position, through rod ontology 31 will be cut by the pin of flow nipple using vibration, flow nipple falls into well under tool
Bottom, tool continue traveling downwardly, and pin 4 is cut after sliding block 2 encounters the step of flow controller, and sliding block 2 becomes again can be in slideway 132
The state freely to move up and down acts tool and if pin 4 is cut shows that flow nipple is released, on the contrary then show to discharge
Failure.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by the appending claims and its equivalent thereof.