CN206554813U - Kill line with profit recovery structure - Google Patents
Kill line with profit recovery structure Download PDFInfo
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- CN206554813U CN206554813U CN201720182160.1U CN201720182160U CN206554813U CN 206554813 U CN206554813 U CN 206554813U CN 201720182160 U CN201720182160 U CN 201720182160U CN 206554813 U CN206554813 U CN 206554813U
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- kill
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Abstract
The utility model provides a kind of kill line with profit recovery structure, and it includes：Kill-job Trunk Line, its one end is connected with well head four-way, and its other end is connected with cementing truck outlet, and the kill-job Trunk Line is provided with the first valve；Line is in charge of in kill-job, and its lower end is connected on the kill-job Trunk Line between first valve and the well head four-way, and the upper end that line is in charge of in the kill-job is connected with oil-containing groove, and the kill-job is in charge of line provided with the second valve.While the utility model realizes that kill-job is acted on by kill line, oily water in recovery well, environmental protection can be also realized in the case of kill line of not dismantling.
Description
Technical field
The utility model is related to a kind of kill line, specifically a kind of kill line with profit recovery structure.
Background technology
In workover treatment lift pipe string work progress, if construction well is more than two grades risk wells of well control rank, and due to well
The non-tripping in bleeder of the particularity of interior tubing string, such as flow string causes tubing string profit in well more due to not knowing reason,
In order to effectively control sewage, it is to avoid cause environmental pollution, the mode typically taken is the kill line for disassembling well head, Ran Houlian
Device for recycling sewage is connect, produced-water reinjection is entered in well.Although the method can effectively control pollution, if well head once occurs
During dangerous situation, because kill line has been removed, it is impossible to which the very first time organizes kill-job operation, easily causes blowout and blowout out of control,
Great hidden danger is brought to well control safety.
The problem of existing in view of above-mentioned prior art, the present inventor combines the design for many years of related manufacture field and used
Experience is there is provided a kind of kill line with profit recovery structure, to overcome drawbacks described above.
Utility model content
The purpose of this utility model is to provide a kind of kill line with profit recovery structure, and it is real by kill line
While existing kill-job effect, oily water in recovery well, environmental protection can be also realized in the case of kill line of not dismantling.
Above-mentioned purpose of the present utility model can be realized using following technical proposal：
The utility model provides a kind of kill line with profit recovery structure, and it includes：Kill-job Trunk Line, its one end
It is connected with well head four-way, its other end is connected with cementing truck outlet, and the kill-job Trunk Line is provided with the first valve；Kill-job is in charge of
Line, its lower end is connected on the kill-job Trunk Line between first valve and the well head four-way, and the kill-job is in charge of
The upper end of line is connected with oil-containing groove, and the kill-job is in charge of line provided with the second valve.
In a preferred embodiment, one end of the kill-job Trunk Line is provided with screw thread head, and the kill-job Trunk Line passes through
The screw thread head is connected with the well head four-way.
In a preferred embodiment, the other end of the kill-job Trunk Line is provided with pipe joint, and the kill-job Trunk Line leads to
The pipe joint is crossed with cementing truck outlet to be connected.
In a preferred embodiment, the top of the oil-containing groove is opening.
In a preferred embodiment, the bottom of the oil-containing groove be provided with drain tap, the kill-job be in charge of line pass through it is described
Drain tap is connected with the oil-containing groove.
In a preferred embodiment, a diameter of 10cm of the drain tap.
In a preferred embodiment, the oil-containing groove is the square bodily form, cuboid or cylindrical.
In a preferred embodiment, first valve and second valve are plug valve.
In a preferred embodiment, the nominal pressure of first valve and second valve is 21Mpa.
The characteristics of the utility model has the kill line of profit recovery structure and advantage are：
Kill-job Trunk Line level is located between well head four-way and cementing truck outlet by the utility model, to be responsible for by kill-job
Line provides passage for well killing fluid, realizes kill-job operation, is prevented effectively from well head dangerous situation；Simultaneously by vertical above kill-job Trunk Line
Set kill-job to be in charge of line, open oil-containing groove is connected with kill-job Trunk Line, be easy to the greasy dirt in the tubing string of proposition in artesian well
Water is fallen into oil-containing groove, is in charge of line into kill-job Trunk Line by kill-job and is passed back into well, it is to avoid the pollution that oily water is brought；
And be in charge of the second valve on line by the first valve on kill-job Trunk Line and located at kill-job, realize in kill-job operation and
Conversion between backflow operation, without removing kill line.The utility model can oily water effectively in recovery well, and take into account often
Kill line function is advised, environmental protection is not only advantageous to, and the well control safety at scene can be ensured, it is simple in construction, it is easy to operate, save
Shi Shengli, convenient disassembly.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of the kill line of the present utility model with profit recovery structure.
Fig. 2 is the structural representation of the oil-containing groove of the kill line of the present utility model with profit recovery structure.
Drawing reference numeral explanation：
Line, 3 oil-containing grooves, 4 first valves, 5 second valves, 6 pipe joints, 7 screw thread heads are in charge of in 1 kill-job Trunk Line, 2 kill-jobs.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
In addition to non-individual defines the direction pointed out, the direction such as upper and lower being referred to herein is with the utility model
The direction such as upper and lower in shown Fig. 1 is defined, and illustrates in this together.
As depicted in figs. 1 and 2, the utility model provides a kind of kill line with profit recovery structure, and it includes：Pressure
Well Trunk Line 1, its one end is connected with well head four-way, and its other end is connected with cementing truck outlet, and the kill-job Trunk Line 1 is provided with
First valve 4；Line 2 is in charge of in kill-job, and its lower end is connected to the kill-job master between first valve 4 and the well head four-way
On pipeline 1, the upper end that line 2 is in charge of in the kill-job is connected with oil-containing groove 3, and the kill-job is in charge of line 2 provided with the second valve 5.
Can be made specifically, line 2 is in charge of in kill-job Trunk Line 1 and kill-job of steel hard tube line, and inside nominal diameter be more than etc.
In 50mm, kill-job Trunk Line 1 is horizontally disposed with, and it is mainly used in kill-job operation, and passage is provided for well killing fluid, meanwhile, kill-job supervisor
Line 1 can also provide drainback passage for oily water, and kill-job is in charge of line 2 and is vertically arranged, and is connected to vertically preferably, line 2 is in charge of in kill-job
The overcentre of kill-job Trunk Line 1, kill-job is in charge of line 2 and is used to provide drainback passage for oily water, and the first valve 4 is series at kill-job
Trunk Line 1, and its left and right ends and kill-job Trunk Line 1 are by screwed connection, for control cementing truck outlet and well head four-way it
Between connection, that is, control whether the inner passage of kill-job Trunk Line 1 unimpeded, the second valve 5 is connected in series with kill-job and is in charge of line 2, and its
Upper and lower ends are in charge of line 2 by screwed connection with kill-job, for controlling the connection between oil-containing groove 3 and kill-job Trunk Line 1, that is, control
Connection between oil-containing groove 3 and well head four-way processed.
Further, one end of the kill-job Trunk Line 1 is provided with screw thread first 7, and the kill-job Trunk Line 1 passes through the screw thread
First 7 are connected with the well head four-way, preferably, screw thread first 7 is connected with well head four-way using slips, and are adopted with kill-job Trunk Line 1
With screwed connection, the other end of the kill-job Trunk Line 1 is provided with pipe joint 6, and the kill-job Trunk Line 1 passes through the pipe joint 6
It is connected with cementing truck outlet, preferably, pipe joint 6, which is inside nominal diameter, is 73mm pin end, and is adopted with kill-job Trunk Line 1
With screwed connection, certainly, the two ends of kill-job Trunk Line 1 also can using other connected modes easy to install respectively with well head four-way and
Cementing truck outlet is connected, and is not limited herein, wherein, cementing truck is for containing well killing fluid.
Further, as depicted in figs. 1 and 2, the top of the oil-containing groove 3 is opening, during in order to lift pipe string operation, is made
The open-mouth at the top of oil-containing groove 3 is placed in by a tubing string lower end gone out, oily water is fallen into oil-containing groove 3, effectively in control well
There is the environmental pollution that sewage landing is caused, preferably, the oil-containing groove 3 is the square bodily form, cuboid or cylindrical, such as
Oil-containing groove 3 is the square bodily form that the length of side is 80cm, certainly, and it can also use other shapes, not be limited herein.
Further, as depicted in figs. 1 and 2, the bottom of the oil-containing groove 3 is provided with drain tap, and it is logical that line 2 is in charge of in the kill-job
Cross the drain tap with the oil-containing groove 3 to be connected, the oily water fallen into oil-containing groove 3 is in charge of line into kill-job by drain tap
In 2, then pass back into well through kill-job Trunk Line 1, it is to avoid pollution, wherein, oil-containing groove 3 can be in charge of line 2 with kill-job and use welding side
Formula is connected, certainly, can also use other connected modes, such as thread connecting mode is not limited herein, preferably, described let out
A diameter of 10cm of hydraulic fluid port, can also be set to that other are suitably sized according to need of work certainly, not be limited herein.
Further, first valve 4 and second valve 5 are plug valve, and certainly, it can also be other classes
Type valve, such as 250 model gate, are not limited herein.
Further, the nominal pressure of first valve 4 and second valve 5 is 21Mpa, to occur in well head
When overflow or dangerous situation, the first valve 4 and the second valve 5 have larger anti-pressure ability, certainly, and selection can be also needed according to operation
Other appropriate values, as long as pressure stage of the pressure rank of the first valve 4 and the second valve 5 with the preventer used in the well
Not, namely the pressure rank of the first valve 4 and the second valve 5 is all higher than the pressure rank of the preventer used in the well, with
Meet the pressure testing requirement of underground work.
There is the utility model the kill line of profit recovery structure to be used for workover treatment scene, it is adaptable to lift pipe string operation
When OIH pipe in have a large amount of profits and those profits without control when use, it is applied to the risk that well control rank is more than two grades
Well, such as well control rank tertiary risk well and level Four risk well are (because general one-level well control risk well and two grades of well control risk wells
It must be connected by job requirement and forbid to remove any one pipeline, three in kill-job and open flow each a pipeline, and work progress
Level well control risk well installs kill-job, the two-in-one pipeline of open flow one, and level Four well control risk well can not install kill-job and blooie pipe
Line), the utility model is when proposing tubing string in well, without kill line of dismantling, you can oily water in recovery well, environmental protection,
And when dangerous situation occurs in well head, well killing fluid can also be irrigated into well in time, control well head, it is ensured that well control safety.
The utility model has the kill line of profit recovery structure before work, first according to the pressure of the preventer of well
Rank, selects the specification of the suitable valve 5 of first valve 4 and second, the utility model is installed on into well head four-way and cementing truck
Between outlet, pressure testing is carried out to package unit by regulation, the second valve 5 is closed during pressure testing, the pressure rank of pressure testing is not less than now
The pressure rank for the preventer that field is installed, can normally be used after pressure testing is qualified；When compressing and washing well operations, the second valve is closed
5, the first valve 4 is opened, well head four way valve is opened, starts cementing truck, well killing fluid is entered kill-job supervisor from cementing truck outlet
Line 1 is simultaneously poured into well, realizes kill-job operation；After kill-job terminates, when normally acting tubing string, the first valve 4 is closed, the second valve is opened
Door 5, a tubing string gone out is placed in the open top of oil-containing groove 3, the oily water in tubing string is flowed under Gravitative Loads out of tubing string
Fallen into after going out in oil-containing groove 3, due to there is difference in height, drain tap of the oily water through oil-containing groove 3 is sequentially entered kill-job and be in charge of line
2nd, kill-job Trunk Line 1 and well head four-way and be back in well, realize backflow operation, it is ensured that oily water does not land, it is to avoid environment is dirty
Dye；When well control dangerous situation occurs in well head, the second valve 5 is closed immediately, the first valve 4 is opened, starts cementing truck, carries out kill-job work
Industry, meanwhile, operating personnel can carry out installing wellhead operation, realize quick, safe closing well.
The characteristics of the utility model has the kill line of profit recovery structure and advantage are：
The level of kill-job Trunk Line 1 is located between well head four-way and cementing truck outlet by the utility model, to pass through kill-job master
Pipeline 1 provides passage for well killing fluid, realizes kill-job operation, is prevented effectively from well head dangerous situation；Simultaneously by the top of kill-job Trunk Line 1
It is vertically arranged kill-job and is in charge of line 2, open oil-containing groove 3 is connected with kill-job Trunk Line 1, is easy in artesian well in the tubing string of proposition
Oily water fall into oil-containing groove 3, being in charge of line 2 by kill-job enters kill-job Trunk Line 1 and passes back into well, it is to avoid oily water band
The pollution come；And it is in charge of the second valve 5 on line 2 by the first valve 4 on kill-job Trunk Line 1 and located at kill-job, it is real
Conversion between present kill-job operation and backflow operation, without removing kill line.The utility model can be effectively in recovery well
Oily water, and conventional Well Killing pipeline function is taken into account, environmental protection is not only advantageous to, and the well control safety at scene, structure can be ensured
Simply, it is easy to operate, time saving and energy saving, convenient disassembly.
The schematical embodiment of the utility model is the foregoing is only, and is not used to limit model of the present utility model
Enclose.Any those skilled in the art, the equivalent variations made on the premise of principle of the present utility model and design is not departed from
With modification, protection domain of the present utility model all should be belonged to.
Claims (9)
1. a kind of kill line with profit recovery structure, it is characterised in that the kill-job pipe with profit recovery structure
Line includes：
Kill-job Trunk Line, its one end is connected with well head four-way, and its other end is connected with cementing truck outlet, on the kill-job Trunk Line
Provided with the first valve；
Line is in charge of in kill-job, and its lower end is connected on the kill-job Trunk Line between first valve and the well head four-way,
The upper end that line is in charge of in the kill-job is connected with oil-containing groove, and the kill-job is in charge of line provided with the second valve.
2. the kill line according to claim 1 with profit recovery structure, it is characterised in that the kill-job Trunk Line
One end be provided with screw thread head, the kill-job Trunk Line is connected by the screw thread head with the well head four-way.
3. the kill line according to claim 1 with profit recovery structure, it is characterised in that the kill-job Trunk Line
The other end be provided with pipe joint, the kill-job Trunk Line is exported by the pipe joint and the cementing truck to be connected.
4. the kill line according to claim 1 with profit recovery structure, it is characterised in that the top of the oil-containing groove
Portion is opening.
5. the kill line with profit recovery structure according to claim 1 or 4, it is characterised in that the oil-containing groove
Bottom be provided with drain tap, the kill-job is in charge of line and is connected by the drain tap with the oil-containing groove.
6. the kill line according to claim 5 with profit recovery structure, it is characterised in that the drain tap it is straight
Footpath is 10cm.
7. the kill line according to claim 1 with profit recovery structure, it is characterised in that the oil-containing groove is just
Cube shape, cuboid or cylindrical.
8. the kill line according to claim 1 with profit recovery structure, it is characterised in that first valve and
Second valve is plug valve.
9. the kill line according to claim 1 with profit recovery structure, it is characterised in that first valve and
The nominal pressure of second valve is 21Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182160.1U CN206554813U (en) | 2017-02-28 | 2017-02-28 | Kill line with profit recovery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720182160.1U CN206554813U (en) | 2017-02-28 | 2017-02-28 | Kill line with profit recovery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206554813U true CN206554813U (en) | 2017-10-13 |
Family
ID=60361301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720182160.1U Active CN206554813U (en) | 2017-02-28 | 2017-02-28 | Kill line with profit recovery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206554813U (en) |
-
2017
- 2017-02-28 CN CN201720182160.1U patent/CN206554813U/en active Active
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