CN204627506U - Filter and blowout preventer pressure testing device - Google Patents
Filter and blowout preventer pressure testing device Download PDFInfo
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- CN204627506U CN204627506U CN201520248749.8U CN201520248749U CN204627506U CN 204627506 U CN204627506 U CN 204627506U CN 201520248749 U CN201520248749 U CN 201520248749U CN 204627506 U CN204627506 U CN 204627506U
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- strainer
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- pressure
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- 238000012423 maintenance Methods 0.000 abstract description 8
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides a filter and preventer pressure testing device, include: the annular side plate, first terminal surface on the annular side plate be provided with the circular apron of external diameter assorted of annular side plate, circumference evenly is provided with two at least filtration pores on the annular side plate, has reduced the impurity that produces in the pressure testing cavity and to the jam probability of pressure release runner, reduces well control equipment and examines cost of maintenance, improves work efficiency.
Description
Technical field
The utility model relates to plant equipment, particularly relates to a kind of strainer and blowout preventer pressure testing device.
Background technology
Along with the increase of expansion and the drilling well difficulty gradually of petroleum exploration domain, how realizing drilling well safely and effectively becomes important subject.Well-control equipment based on preventer, can control well mouth pressure, support personnel's safety and improve drilling quality, is the guarantee realizing nearly balance and even under balance pressure drilling.
Preventer is one of most important blowout hookup in secondary well-control equipment.Preventer sealing is reliable, high pressure resistant, can the closing well of long period, can be equipped with and close various drilling rod, sleeve pipe, oil pipe flashboard, the flashboard of closing empty well can be equipped with, the flashboard cutting off drilling rod can be equipped with, the flashboard of reducing within the specific limits can be equipped with.The preventer of present use is all generally by its switch of hydraulic control.Preventer also possesses without when controlling oil pressure, in emergency circumstances can close flashboard with manual operation, and locks flashboard while manual-lock; Also can close rear manual locking flashboard at hydraulic pressure.Once after locking, even if hydraulic pressure out of hand, still can positiver sealing closing well.Owing to possessing above-mentioned several functions and unfailing performance, preventer is well-control equipment indispensable in probing Oil/gas Well process.When Oil/gas Well normal operation, the preventer being arranged on well head must be in good armed state at any time; After generation overflow closing well, preventer must be in good shut-in well state, ensures that the kill-job of secondary well control is working properly and carries out, for kill-job work provides effective guarantee, just can reach the object of rebuilding borehole pressure balance.
Before use preventer, need to carry out voltage endurance capability test to preventer, the impurity such as the cracked rubber produced in the process of test and mud easily block pressure release runner, therefore, need to block impurity in time and discharge pressure release runner.
In prior art when pressure release runner meets with blocking, employing is opened repeatedly, close hydraulic test pump suppresses in pressure testing passage, until will block impurity to discharge pressure release runner, to complete pressure release.And repeatedly open, closing that hydraulic test pump suppresses in pressure testing passage can cause damage to well-control equipment, increase well-control equipment checking maintenance cost, reduce operating efficiency.
Utility model content
The utility model provides a kind of strainer and blowout preventer pressure testing device, in order to reduce the impurity that produces in pressure testing chamber to the blocking probability of pressure release runner, improves work pressure test efficiency, reduces well-control equipment checking maintenance cost.
The utility model provides a kind of ring-type side plate, the first end face on described ring-type side plate be provided with match with the external diameter of described ring-type side plate circular cover, on described ring-type side plate, circumference is evenly provided with at least two filter bores.
Alternatively, above-mentioned strainer, also comprises: at least one annular brace muscle, and described at least one annular brace muscle is arranged at the inner side of described ring-type side plate, and described at least one annular brace muscle is perpendicular to described circular cover.
Alternatively, the second end face of described ring-type side plate arranges open slot, and rubber weather strip is embedded in described open slot.
Alternatively, described circular cover is symmetrically arranged with two circular ports, for the handling of described strainer.
Alternatively, the first end face of described ring-type side plate and described circular cover connected mode are welded corner joint.
Alternatively, the quantity of described filter bores is 20.
Alternatively, the material of described ring-type side plate, described circular cover and described annular brace muscle is titanium steel alloy.
Alternatively, the end face diameter of described rubber weather strip is greater than described open slot width.
The utility model also provides a kind of blowout preventer pressure testing device, comprises preventer and the strainer described in above-mentioned any one.
The strainer that the present embodiment provides and blowout preventer pressure testing device, most of impurity such as mud, cracked rubber is stopped by the circular cover being arranged at ring-type side plate first end face, the filter bores be uniformly distributed in the middle part of ring-type side plate by circumference filters large granular impurity, the granule mud entering filter bores inside all can be discharged from relief hole, effectively reduce the blocking probability of pressure release runner, reduce the checking maintenance cost of well-control equipment, increase work efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The sectional drawing of the strainer that Fig. 1 provides for the utility model embodiment one;
The sectional drawing of the strainer that Fig. 2 provides for the utility model embodiment two;
The sectional drawing of the strainer that Fig. 3 provides for the utility model embodiment three;
The sectional drawing of the strainer that Fig. 4 provides for the utility model embodiment four;
The top view of the strainer that Fig. 5 provides for the utility model embodiment four;
Flow chart during the blowout preventer pressure testing device pressure testing that Fig. 6 provides for the utility model embodiment.
Description of reference numerals:
1: circular cover;
2: ring-type side plate;
21: the first end face of ring-type side plate;
22: the second end face of ring-type side plate;
3: filter bores;
4: annular brace muscle;
5: rubber weather strip;
6: circular port.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model is applicable to all size flashboard assembly water test and hermetic seal test, can use, carry out the pressure testing passage anti-blockage filter of the wellhead blowout preventors such as drilling well, formation testing, well workover, completion in clear water, acid medium or anti-icing fluid.
The sectional drawing of the strainer that Fig. 1 provides for the utility model embodiment one, as shown in Figure 1, the present embodiment provides a kind of strainer, comprise: ring-type side plate 2, the first end face 21 on described ring-type side plate 2 be provided with match with the external diameter of described ring-type side plate 2 circular cover 1, on described ring-type side plate 2, circumference is evenly provided with at least two filter bores 3.
Concrete, this strainer comprises ring-type side plate 2, first end face 21 of the circular cover 1 identical with the external diameter of ring-type side plate 2 and ring-type side plate 2 welds together, and the outward flange of ring-type side plate 2 and circular cover 1 justified margin, circular cover 1 and ring-type side plate 2 are used for stopping most of impurity such as mud.Around one week of ring-type side plate 2, be positioned at position, intermediate portion, the mid point of the lower surface line namely from the upper surface of circular cover 1 to ring-type side plate 2, is evenly provided with at least two filter bores 3, is used for filtering oarse-grained impurity, as cracked rubber, mud etc.When carrying out pressure testing to preventer, the impurity produced in pressure testing chamber is after filter, impurity such as major part mud, cracked rubber etc. is blocked in strainer circular cover 1, granule mud enters into filter interior by the filter bores 3 of ring-type side plate 2, these granule mud all effectively can be discharged in relief hole, reusable after rinsing.
The strainer that the present embodiment provides, most of impurity such as mud, cracked rubber is stopped by the circular cover being arranged at ring-type side plate first end face, the filter bores be uniformly distributed in the middle part of ring-type side plate by circumference filters large granular impurity, the granule mud entering filter bores inside all can be discharged from relief hole, effectively reduce the blocking probability of pressure release runner, reduce the checking maintenance cost of well-control equipment, increase work efficiency.
The sectional drawing of the strainer that Fig. 2 provides for the utility model embodiment two, as shown in Figure 2, on the basis of embodiment one, the strainer of the present embodiment, also comprise: at least one annular brace muscle 4, described at least one annular brace muscle 4 is arranged at the inner side of described ring-type side plate 2, and described at least one annular brace muscle 4 is perpendicular to described circular cover 1.
Concrete, this strainer can also be provided with at least one annular brace muscle 4, preferably, in the inner side of ring-type side plate 2, perpendicular to above-mentioned circular cover 1, and weld an annular brace muscle 4 in the centre of circular cover 1, this annular brace muscle 4 has strong shock resistance, the feature of long service life, falls very large to the impact of pressure testing flange to solve pressure test plug in actual condition, very possible by strainer collision deformation, by the problem that relief hole blocks.
The strainer that the present embodiment provides, most of impurity such as mud, cracked rubber is stopped by the circular cover being arranged at ring-type side plate first end face, the filter bores be uniformly distributed in the middle part of ring-type side plate by circumference filters large granular impurity, the granule mud entering filter bores inside all can be discharged from relief hole, effectively reduce the blocking probability of pressure release runner, reduce the checking maintenance cost of well-control equipment, increase work efficiency.Further, in the inner side of ring-type side plate, perpendicular to above-mentioned circular cover, and weld an annular brace muscle in the centre of circular cover, to prevent pressure test plug from falling, to the large impact of pressure testing flange, strainer is hit distortion, strengthen the impact resistance of strainer.
The sectional drawing of the strainer that Fig. 3 provides for the utility model embodiment three; As shown in Figure 3, on the basis of above-described embodiment, the strainer that the present embodiment three provides, the second end face 22 of described ring-type side plate 2 arranges open slot, and rubber weather strip 5 is embedded in described open slot.
Concrete, above-mentioned strainer, the second end face 22 along ring-type side plate 2 extrudes an open slot, and at the embedded round rubber weather strip 5 of this open slot, when this strainer is positioned in pressure testing chamber, rely on it to conduct oneself with dignity, effective sealing can be carried out by the embedded rubber weather strip 5 of this open slot.
The strainer that the present embodiment provides, most of impurity such as mud, cracked rubber is stopped by the circular cover being arranged at ring-type side plate first end face, the filter bores be uniformly distributed in the middle part of ring-type side plate by circumference filters large granular impurity, the granule mud entering filter bores inside all can be discharged from relief hole, effectively reduce the blocking probability of pressure release runner, reduce the checking maintenance cost of well-control equipment, increase work efficiency.Further, the second end face along ring-type side plate arranges open slot, and at the embedded rubber weather strip of this open slot, when this strainer is positioned in pressure testing chamber, relies on it to conduct oneself with dignity, and can carry out effective sealing by the embedded rubber weather strip of this open slot.
The sectional drawing of the strainer that Fig. 4 provides for the utility model embodiment four; The top view of the strainer that Fig. 5 provides for the utility model embodiment four; As shown in Figure 4, on the basis of above-described embodiment, the strainer that the present embodiment four provides, described circular cover 1 is symmetrically arranged with two circular ports 6, for the handling of described strainer.
Concrete, above-mentioned strainer, circular cover 1 is symmetrical arranged two circular ports 6, and these two circular ports 6, through circular cover 1, can be sling strainer by this circular port 6, be used for handling strainer in pressure testing chamber.
The strainer that the present embodiment provides, most of impurity such as mud, cracked rubber is stopped by the circular cover being arranged at ring-type side plate first end face, the filter bores be uniformly distributed in the middle part of ring-type side plate by circumference filters large granular impurity, the granule mud entering filter bores inside all can be discharged from relief hole, effectively reduce the blocking probability of pressure release runner, reduce the checking maintenance cost of well-control equipment, increase work efficiency.Further, circular cover is symmetrical arranged two circular ports, can be sling strainer by this circular port, be used for handling strainer in pressure testing chamber.
Optionally, the first end face 21 of described ring-type side plate 2 is welded corner joint with described circular cover 1 connected mode.As in Fig. 4, right side is amplified shown in position, be specially, the first end face 21 weld and circular cover 1 weld of ring-type side plate 2 form right angle.Fillet welding is the weld seam welded along the intersection of two orthogonals or nearly orthogonal part, and leg is the isosceles right angle length of side, and weldering larynx is the height of isosceles right triangle hypotenuse.In fillet welding, weld bead height refers to the distance (i.e. the height of hypotenuse) of right angle electrical (two leg intersection points) to hypotenuse of right-angled triangle.Said weld bead height specifies consistent with standard traditionally.Standard specifies: weld bead height generally can not be less than gauge of sheet.Be exactly the angled weld seam in two faces, double welding is the thinnest weldment 0.4 times, and one side welding is 0.8 times of the thinnest weldment, just can reach the intensity of mother metal.Adopt the mode of fillet welding in the present embodiment, ensure weldquality and process requirements.
Optionally, the quantity of above-mentioned filter bores 3 is 20, and through reality test and process requirements, filter bores arranges filter effect the best of 20.In other embodiments of the present utility model, filter bores can also arrange arrangement and quantity according to actual needs, and the utility model is not limited this.
Optionally, the material of above-mentioned ring-type side plate 2, circular cover 1 and annular brace muscle 4 is titanium steel alloy, adopts titanium steel alloy to improve intensity, to make the strong shock resistance of strainer, increases corrosion resistance, long service life simultaneously.
Optionally, the end face diameter of above-mentioned rubber weather strip 5 is greater than open slot width.As left side is amplified shown in position in Fig. 4, arrange like this and rubber weather strip 5 can be made tightly to be embedded in open slot, strengthen sealing effectiveness.In other embodiments of the present utility model, rubber weather strip can also arrange arrangement according to actual needs, and the utility model is not limited this.
The utility model also provides a kind of blowout preventer pressure testing device, and comprise preventer and strainer described above, the structure of strainer is same as the previously described embodiments, repeats no more herein.Below the structure of preventer and pressure testing step are briefly described.
Preventer utilizes hydraulic pressure by the two shoe brake plates with rubber glue core, pushes well center from the left and right sides to, and to reach the object of closed well head, the earliest, on-the-spot application is also the most extensive to the domestic development of this preventer.
Preventer is the important component part of well-control equipment, is mainly used in, in the operations such as drilling well, well workover, formation testing gas testing, realizing the control to bottom pressure, effectively prevent the generation of gas blowout accident by control well mouth pressure.In oilfield downhole operation process, overflow and well kick can happen occasionally, and for ensuring safety in production, well head also should be equipped preventer, in empty well situation, can use and entirely seal preventer.
The driving a well of preventer, closing well action realize by hydraulic pressure.Close chamber when hydraulic control system hydraulic oil enters left and right fluid cylinder flashboard from oil pipe seat through enclosure interior oil circuit, promotion piston driving flashboard axis and left and right flashboard assembly move along housing flashboard room respectively to well head center, until contact and compression, reach the object of shut-in well.As the time of shunting in a well is long, declining for preventing closing chamber oil pressure, causing seal failure, rotatably locking handwheel, dextrorotation lock shaft, till the shoulder of stepping back until lock shaft arrives to cylinder cap, so just can prevent flashboard axis retrogressing from opening well head.
When flashboard opened by needs, first left-handed lock shaft, make it to reset, make control system hydraulic oil enter preventer left and right fluid cylinder flashboard again and open chamber (meanwhile, the hydraulic oil pressure release of closing chamber enters fuel tank), thus promotion the axis of the piston drives flashboard axis and flashboard assembly to leaving the motion of well head center position, open well head, flashboard switch is controlled by hydraulic control system reversal valve.
Blowout preventer pressure-testing flow process as shown in Figure 6.During pressure testing, first close open flow device upper flashboard, open low pressure and to pour water pump discharge, pump startup of pouring water, pressure rises to 0.25MPa, stops pouring water pump, closes its outlet, pneumatic test pump outlet valve is opened, pneumatic test pump low pressure (LP) cylinder air valve is opened, pneumatic test pump works, pressure rises to 2MPa, close pneumatic test pump low pressure (LP) cylinder air valve, voltage stabilizing 10 minutes, pressure drop is less than or equal to 0.1MPa, if pressure drop is not in this number range, then defective circulation previous step pneumatic test pump pressure testing 3 times, still underproof words are then betrayed useless, off-load, qualified, continue to open pneumatic test pump low pressure (LP) cylinder air valve, pressure rises to 21MPa, close pneumatic pressure testing cylinder air valve, voltage stabilizing 6 minutes, pressure drop is less than or equal to 0.7MPa, the same defective betray useless, off-load, qualified, open pneumatic test pump high pressure cylinder air valve, open pneumatic test pump low pressure (LP) cylinder air valve, pressure rises to 35MPa, close pneumatic test pump low pressure (LP) cylinder air valve, close pneumatic test pump high pressure cylinder air valve, and voltage stabilizing 6 minutes, judge that pressure drop is less than or equal to 0.7MPa, the same defective useless off-load of betraing, qualified, open unloader off-load, open preventer upper flashboard, close lower flashboard, close unloader, open preventer lower flashboard simultaneously, printing pressure testing is reported.
Existing preventer is when pressure testing, and mud returns and destroys hydraulic test pump and hydraulic test pump ball-and-seat, and mud washes away for a long time, destroys runner, thread seal, cause wash away, the damage such as corrosion, the pressure release cock life-span is low.When mud blocking pipeline, when cannot collect mud, cause the possibility of suppressing pump, personnel are in processing procedure, pressure is very high very dangerous, if dismantle flange by force can damage flange seal, and cannot Timeliness coverage seepage, cause a hidden trouble, explosive (pipeline, pressure testing part, pressure meter etc.), device damage, personal injury, the time has been grown and cannot process, action pressure-testing joint builds the pressure, plug flies out, and the gas injury be mingled with comparatively large (high pressure draught impacts injury), once thorn leaks, cannot pressure release in time, cause larger damage.
The blowout preventer pressure testing device that the utility model provides, can filter the impurity contained in test medium; Structure is simple, can filter bulky grain, coarse filtration+carefully filter; In filter process, reduce flow velocity, dispersion is washed away, and is realized by large area diffusion hole; Allow mud sediment simultaneously, do not avoid mud, meet reality, front process mud; Protection access not blocked, break; Reduce the preventer of process sealing with pressure, safe and reliable; Pressure testing access is all lower, and mud easily precipitates, and utilizes this characteristic, at collective low mud.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (9)
1. a strainer, is characterized in that, comprising:
Ring-type side plate, the first end face on described ring-type side plate be provided with match with the external diameter of described ring-type side plate circular cover, on described ring-type side plate, circumference is evenly provided with at least two filter bores.
2. strainer according to claim 1, is characterized in that, also comprises:
At least one annular brace muscle, described at least one annular brace muscle is arranged at the inner side of described ring-type side plate, and described at least one annular brace muscle is perpendicular to described circular cover.
3. strainer according to claim 1 and 2, is characterized in that, the second end face of described ring-type side plate arranges open slot, and rubber weather strip is embedded in described open slot.
4. strainer according to claim 3, is characterized in that, described circular cover is symmetrically arranged with two circular ports, for the handling of described strainer.
5. strainer according to claim 1 and 2, is characterized in that, the first end face and the described circular cover connected mode of described ring-type side plate are welded corner joint.
6. strainer according to claim 1 and 2, is characterized in that, the quantity of described filter bores is 20.
7. strainer according to claim 2, is characterized in that, the material of described ring-type side plate, described circular cover and described annular brace muscle is titanium steel alloy.
8. strainer according to claim 3, is characterized in that, the end face diameter of described rubber weather strip is greater than described open slot width.
9. a blowout preventer pressure testing device, is characterized in that, comprises the strainer according to any one of preventer and claim 1 ~ 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520248749.8U CN204627506U (en) | 2015-04-22 | 2015-04-22 | Filter and blowout preventer pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520248749.8U CN204627506U (en) | 2015-04-22 | 2015-04-22 | Filter and blowout preventer pressure testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627506U true CN204627506U (en) | 2015-09-09 |
Family
ID=54046545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520248749.8U Expired - Fee Related CN204627506U (en) | 2015-04-22 | 2015-04-22 | Filter and blowout preventer pressure testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627506U (en) |
-
2015
- 2015-04-22 CN CN201520248749.8U patent/CN204627506U/en not_active Expired - Fee Related
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 |
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| CF01 | Termination of patent right due to non-payment of annual fee |