CN207600694U - A kind of integrated sealing system safety testing device of LWD - Google Patents
A kind of integrated sealing system safety testing device of LWD Download PDFInfo
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- CN207600694U CN207600694U CN201721643517.8U CN201721643517U CN207600694U CN 207600694 U CN207600694 U CN 207600694U CN 201721643517 U CN201721643517 U CN 201721643517U CN 207600694 U CN207600694 U CN 207600694U
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- pressure
- sleeve
- seal nipple
- lwd
- system safety
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Abstract
The utility model is related to sealing propertytest technical fields, disclose the integrated sealing system safety testing device of LWD a kind of, including sleeve, seal nipple, dynamical element and pressure device, the sleeve includes sealed end and openend, the seal nipple is threadedly coupled with the openend of the sleeve, the pressure device is arranged on by quick coupling on the seal nipple, the dynamical element is arranged on the pressure device, it is provided for the pressure device and suppresses power, pressure valve is provided on the pressure device, pressure gauge is provided on the seal nipple.The utility model can realize that positive pressure is up to the leakproofness pressure test of 120Mpa, solving in the prior art can only be by the way of vacuumizing for the sealing propertytest of LWD, leakproofness is tested under negative pressure, and test pressure only only has 1Mpa, it is difficult to the problem of meeting under high pressure to sealing requirements.
Description
Technical field
The utility model is related to performing leak test technical fields, disclose the integrated sealing system safety testing device of LWD a kind of
Background technology
LWD (Logging While Drilling) means " with well logging is bored ", and universal is said, except the survey for including MWD
It measures outside parameter, it is necessary to all or part of to have geologic parameter (such as：Resistivity logging while drilling, with bore gamma, with bore density, with drilling
Porosity etc.) and drilling engineering parameter (with boring drilling tool torque, being vibrated with brill, with brill bit pressure etc.).
LWD technologies are mainly used in differentiating stratum, differentiate oil gas water, judge the occasions such as formation variation, prediction high pressure formation,
Drilling period can be greatly shortened, reduces the soaking time of oil gas, oil layer pollution is gathered around in reduction.Due to the application scenario of LWD instruments
Mostly underground high-voltage test environment, so harsh requirement is proposed to the leakproofness of LWD instruments, if the sealing of LWD instruments
Property does not reach requirement, then liquid filling phenomenon, i.e., the geology mud under high pressure conditions etc. easily occurs in underground and passes through tool interface system
Equipment is poured into, significant impact is not only caused to measurement result, but also irreversible pollution damage is caused to LWD equipment.
To sum up, in order to ensure LWD instruments in underground acceptable safety operation, it is necessary to the leakproofness of LWD instruments is detected,
It is known that in liquid environment, product is directly proportional to depth of the product in liquid environment to the ability to bear of pressure, deep
Degree is deeper, and the requirement that High Voltage ability is born to product is higher, meanwhile, the pressure born is directly proportional to the pressure born, therefore
It requires product that can bear in some Code in Hazardous Special Locations higher eager to excel in whatever one does, is all for the test of the leakproofness of LWD in the prior art
In a manner that sealing vacuumizes, being sealed property is tested under negative pressure, and this test method can only realize the pressure of 1Mpa
Sealing demand therefore, it is necessary to research and develop a kind of positive seal detection device, ensures the leakproofness of LWD instruments, prevents leakproofness not
LWD instrument and equipments up to standard are entered underground and carry out risky operation, also, leakproofness is tested in a manner of positive pressure, and obtaining one kind can
Meet the LWD instruments of high-pressure tightness requirement.
Utility model content
The technical problems to be solved in the utility model is the sealing propertytest of LWD can only to be used to take out very in the prior art
Empty mode, tests leakproofness under negative pressure, and test pressure only only has 1Mpa, it is difficult to meet and sealing requirements are asked under high pressure
Topic.
In order to solve the above technical problems, the utility model discloses the integrated sealing system safety testing device of LWD a kind of, it is described
Device includes sleeve, seal nipple, dynamical element and pressure device, and the sleeve includes sealed end and openend, the sealing
Connector is threadedly coupled with the openend of the sleeve, and the pressure device is arranged on by quick coupling on the seal nipple,
The dynamical element is arranged on the pressure device, is provided for the pressure device and is suppressed power, is set on the pressure device
There is pressure valve, pressure gauge is provided on the seal nipple.
As preference, the dynamical element is cylinder or hydraulic cylinder.
Specifically, being provided with external screw thread on the openend of the sleeve, it is provided on the seal nipple and the outer spiral shell
The internal thread of line cooperation.
Further, it is provided with sealing ring between the seal nipple and the openend.
Further, relief hole is additionally provided on the seal nipple, pressure release plug is installed on the relief hole.
As preference, it is threadedly coupled between the pressure release plug and the relief hole.
Further, it is provided on the seal nipple with the front of motor of the openend and carries silk convenient for lifting.
Further, described device further includes high pressure line, the pressure device by the high pressure line with it is described fast
Quick coupling connects.
As preference, the compressive region of the sleeve is 50-120Mpa.
Using above-mentioned technical proposal, the integrated sealing system safety testing device of LWD described in the utility model has and has as follows
Beneficial effect：
1) the integrated sealing system safety testing device of LWD described in the utility model is used adds water in sleeve, by suppressing
After device 1 squeezes into oil into sleeve, increase the pressure of sleeve, pressure rises soon, laborsaving.
2) the integrated sealing system safety testing device of LWD described in the utility model is pressurizeed by pressure device into sleeve,
It can realize that positive pressure tests leakproofness.
3) the integrated sealing system safety testing device of LWD described in the utility model can test the up to pressure of 120Mpa.
4) the integrated sealing system safety testing device of LWD described in the utility model is connected by quick coupling and seal nipple
It connects, it is easy for installation, quick, and can dismantle, a pressure device is only needed for the performing leak test of multiple sleeves, no
Each sleeve is needed to be equipped with a pressure device, has saved cost.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structure diagram of the integrated sealing system safety testing device of the LWD described in embodiment one；
Fig. 2 is the explosive view of Fig. 1；
Fig. 3 is the structure diagram of the integrated sealing system safety testing device of the LWD described in embodiment two；
Fig. 4 is the explosive view of Fig. 3；
In figure, 1- pressure devices, 2- high pressure lines, 3- pressure gauges, 4- pressure release plugs, 5- seal nipples, 6- sleeves, 61-
Sealed end, 62- openends, 7- quick couplings, 8- pressure valve, 9- carry silk, 10- cylinders, 11- hydraulic cylinders.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model part, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's all other embodiments obtained without making creative work all should
When the range for belonging to the utility model protection.
" one embodiment " or " embodiment " referred to herein refers to may be included at least one realization side of the utility model
A particular feature, structure, or characteristic in formula.In the description of the present invention, it is to be appreciated that term " on ", " top ",
" bottom ", etc. instructions orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description this
Utility model must have specific orientation with the device or element for simplifying description rather than instruction or hint meaning, with specific
Azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second " are only used
In description purpose, and it is not intended that instruction or hint relative importance or the implicit number for indicating indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can be expressed or what is implied includes one or more this feature.
Moreover, term " first ", " second " etc. are the objects for distinguishing similar, specific sequence or priority time are described without being used for
Sequence.It should be appreciated that the data used in this way can be interchanged in the appropriate case, so as to the implementation of the utility model described herein
Example can be implemented with the sequence other than those for illustrating or describing herein.
Embodiment one：
To solve in the prior art to test the sealing propertytest of LWD under negative pressure by the way of vacuumizing
Leakproofness, test pressure only only have 1Mpa, it is difficult to the problem of meeting under high pressure to sealing requirements.The utility model provides one
The integrated sealing system safety testing device of kind of LWD, specifically, refering to Fig. 1 and Fig. 2, described device include sleeve 6, seal nipple 5,
Dynamical element and pressure device 1, the sleeve 6 include sealed end 61 and openend 62, the seal nipple 5 and the sleeve 6
Openend 62 be threadedly coupled, the pressure device 1 is arranged on by quick coupling 7 on the seal nipple 5, power member
Part is arranged on the pressure device 1, as preference, in the present embodiment, the dynamical element is cylinder 10, by repeatedly
Air in compression cylinder 10 is provided for the pressure device 1 suppresses power.Further, it is provided with pressure on the pressure device 1
Power valve 8 is provided with pressure gauge 3 on the seal nipple 5.
Further, the sealed end 61 of the sleeve 6 is integrally formed with the sleeve 6, and the openend 62 of the sleeve 6 is set
External screw thread is equipped with, is provided with the inside of the seal nipple 5 of the cooperation installation of openend 62 of the sleeve 6 and matches with the external screw thread
The internal thread of conjunction, the external screw thread seal the openend 62 of the sleeve 6 after being screwed with screw-internal thread fit, as preference,
Sealing ring is arranged on the externally threaded excircle, it is to be understood that is arranged sealing on the externally threaded excircle
Circle can increase seal nipple 5 and the leakproofness of the openend 62.Further, the seal nipple 5 is pacified with openend 62
It can be by screwing by hand during dress, it can also be urgent by assembling and disassembling stand.
Further, described device further includes high pressure line 2, the pressure device 1 by high pressure line 2 with it is described quick
Connector 7 connects, and the high pressure line 2 can bear higher pressure, increases institute being suppressed by pressure device 1 into sleeve 6
When stating the pressure of sleeve 6, certain cushioning effect can be played by high pressure line 2, the change dramatically of pressure will not be caused.Tool
Body, the connection between the pressure device 1, high pressure line 2 and quick coupling 7 is connected through a screw thread, in connector
Place can wind raw material band, improve the leakproofness and compactness of junction.
Further, relief hole is additionally provided on the seal nipple 5, pressure release plug 4 is installed on the relief hole.Make
To be preferred, it is connected through a screw thread between the pressure release plug 4 and the relief hole.Specifically, it is set on the seal nipple 5
Putting the effect of relief hole is, after the completion of the sleeve 6 experiment, when carrying out pressure release to sleeve 6, can be blocked up by disassembling pressure release
Slow pressure release is carried out to sleeve 6 after first 4, avoids the impact force of the unexpected pressure release of high pressure.
Further, it is provided on the seal nipple 5 with the front of motor of the openend 62 and carries silk convenient for lifting
9。
As preference, in the present embodiment, the pressure measurement ranging from 0-120Mpa of the pressure gauge 3, the sleeve by
Press ranging from 50-120Mpa.It is understood that in the present embodiment by pressure rise to 120Mpa.It is understood that work as
After some pressure value that pressure in the sleeve 6 is pressurizeed in 0-120Mpa, the pressure gauge 3 is just shown with the pressure value
Show, as preference, in the present embodiment, pressure boost into the sleeve 6 to 120Mpa, at this point, the pressure gauge 3 with
120Mpa is shown.Further, be provided with pressure valve 8 on the pressure device 1, when the pressure boost in the sleeve 6 extremely
After 120Mpa, pressure valve 8 is turned off, sleeve 6 is made to start the performing leak test of sleeve 6 using 120Mpa as test pressure.
As preference, water can be packed into the sleeve 6, the pressure device 1 is made to work in oil medium,
In this structure, compared with the structure of air dielectric, application similarly suppresses power, since the compressibility of liquid is small, the application
Structure sleeve it is same suppress power under, the ramp-up rate of pressure is fast, and attainable pressure is higher.
Further, for above structure, the principle of performing leak test is operated and is specifically summarized, specifically,
After water is packed into the sleeve 6, pressure to increase sleeve 6 is suppressed into sleeve 6 by pressure device 1 until 120Mpa,
Then, the pressure valve 8 is screwed into closing, whether the pressure in 60 points in interior observation pressure gauge 3 changes and described
Whether have on the outer surface of sleeve 6 oil or water exudation, if the pressure gauge 3 change or the outer surface of sleeve 6 on
There are water or oil exudation, then it represents that, the poor sealing of the sleeve 6.
Further, during above-mentioned experiment, in order to more accurately discharge the opening of the seal nipple 5 and sleeve 6
The leakage of the junction at end 62, being partially placed into water after can seal nipple 5 be connect with sleeve 6, by observing junction
Whether continuous air bubbles emerge and bubble emerge frequency is had to determine whether being that junction does not connect, if it is, tearing open
It is reinstalled after falling.If it is not, and pressure gauge 3 show value change or the outer surface of sleeve 6 on have water or oil
Exudation then further illustrates the poor sealing of sleeve 6.
Further, after the completion of performing leak test, by the way that the pressure release plug 4 is laid down from the relief hole, to set
Pressure release after cylinder 6 carries out slow pressure release or the pressure device 1, high pressure line 2 are dismantled.
Embodiment two：
This gives another structures of tightness measuring device, and as shown in Figure 3 and Figure 4, described device includes
Sleeve 6, seal nipple 5, dynamical element and pressure device 1, the sleeve 6 include sealed end 61 and openend 62, the sealing
Connector 5 is threadedly coupled with the openend 62 of the sleeve 6, and the pressure device 1 is arranged on the sealing by quick coupling 7 and connects
On first 5, the dynamical element is arranged on the pressure device 1, as preference, in the present embodiment, the dynamical element
For hydraulic cylinder 11, hydraulic energy is changed into mechanical energy by hydraulic cylinder 11, and the Repeated Compression by hydraulic cylinder 11 is the pressure device 1
Power is suppressed in offer.Further, pressure valve 8 is provided on the pressure device 1, pressure gauge is provided on the seal nipple 5
3。
Specifically, the sealed end 61 of the sleeve 6 seals after being integrally formed with the sleeve 6, the openend of the sleeve 6
62 are provided with external screw thread, are provided with and the outer spiral shell with the inside of the seal nipple 5 of the cooperation installation of openend 62 of the sleeve 6
The internal thread of line cooperation, the external screw thread seals the openend 62 of the sleeve 6 after being screwed with screw-internal thread fit, as preferred
, the junction of the openend 61 of the sleeve 6 and the seal nipple 5 is further, described by raw material band auxiliary seal
Seal nipple 5 can be by screwing when being installed with openend 62 by hand, can also be urgent by assembling and disassembling stand.
Further, described device further includes high pressure line 2, the pressure device 1 by high pressure line 2 with it is described quick
Connector 7 connects, and the high pressure line 2 can bear higher pressure, increases institute being suppressed by pressure device 1 into sleeve 6
When stating the pressure of sleeve 6, certain cushioning effect can be played by high pressure line 2, the change dramatically of pressure will not be caused.Tool
Body, the connection between the pressure device 1, high pressure line 2 and quick coupling 7 is connected through a screw thread, in connector
Place can wind raw material band, improve the leakproofness and compactness of junction.
Further, relief hole is additionally provided on the seal nipple 5, pressure release plug 4 is installed on the relief hole.Make
To be preferred, it is connected through a screw thread between the pressure release plug 4 and the relief hole.Specifically, it is set on institute's seal nipple 5
The effect of relief hole is,, can be by disassembling pressure release plug when carrying out pressure release to sleeve 6 after the completion of the sleeve 6 is tested
Slow pressure release is carried out to sleeve 6 after 4, avoids the impact force of the unexpected pressure release of high pressure.
Further, it is provided on the seal nipple 5 with the front of motor of the openend 62 and carries silk convenient for lifting
9。
As preference, in the present embodiment, the pressure measurement ranging from 0-1200Mpa of the pressure gauge 3, the sleeve by
Press ranging from 50-120Mpa.It is understood that when some pressure in 0-120Mpa that the pressure in the sleeve 6 is pressurizeed
After force value, the pressure gauge 3 is just shown with the pressure value, as preference, in the present embodiment, the pressure into the sleeve 6
Power is pressurized to 50Mpa, at this point, the pressure gauge 3 is shown with 50Mpa.Further, it is provided with pressure on the pressure device 1
Valve 8 after the pressure boost in the sleeve 6 is to 50Mpa, pressure valve 8 is turned off, sleeve 6 is made to be opened by test pressure of 50Mpa
The performing leak test of beginning sleeve 6.
As preference, water can be packed into the sleeve 6, the pressure device 1 is made to work in oil medium,
In this structure, compared with the structure of air dielectric, application similarly suppresses power, since the compressibility of liquid is small, the application
Structure sleeve it is same suppress power under, the ramp-up rate of pressure is fast, and attainable pressure is higher.
Further, for above structure, the principle of performing leak test is operated and is specifically summarized, specifically,
After water is packed into the sleeve 6, pressure to increase sleeve 6 is suppressed into sleeve 6 by pressure device 1 until 50Mpa, with
Afterwards, the pressure valve 8 is screwed into closing, the pressure in 30 points in interior observation pressure gauge 3 whether changes and the set
Cylinder 6 outer surface on whether have oil or water exudation, if the pressure gauge 3 change or the outer surface of sleeve 6 on have
Water or oil exudation, then it represents that, the poor sealing of the sleeve 6.
Further, during above-mentioned experiment, in order to more accurately discharge the opening of the seal nipple 5 and sleeve 6
The leakage of the junction at end 62, being partially placed into water after can seal nipple 5 be connect with sleeve 6, by observing junction
Whether continuous air bubbles emerge and bubble emerge frequency is had to determine whether being that junction does not connect, if it is, tearing open
It is reinstalled after falling.If it is not, and pressure gauge 3 show value change or the outer surface of sleeve 6 on have water or oil
Exudation then further illustrates the poor sealing of sleeve 6.
Further, after the completion of performing leak test, by the way that the pressure release plug 4 is laid down from the relief hole, to set
Pressure release after cylinder 6 carries out slow pressure release or the pressure device 1, high pressure line 2 are dismantled.
Further, in the above-described embodiments, the sleeve 6 can realize the performing leak test under 50-120Mpa pressure,
User can be pressurized to required pressure into sleeve 6 as needed, meanwhile, more accurate leakproofness in order to obtain, user
The dwell time can suitably be increased as needed.
Further, in the above-described embodiments, the pressure device can also be aqueous medium, i.e., to the sleeve for filling water
Water is inside suppressed, increases sleeve force due to centrifugal action.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. the integrated sealing system safety testing device of a kind of LWD, which is characterized in that described device includes sleeve (6), seal nipple
(5), pressure device (1) and dynamical element, the sleeve (6) include sealed end (61) and openend (62), the seal nipple
(5) it is threadedly coupled with the openend of the sleeve (6) (62), the pressure device (1) is arranged on described by quick coupling (7)
On seal nipple (5), the dynamical element is arranged on the pressure device (1), is suppressed for the pressure device (1) offer
Power is provided with pressure valve (8) on the pressure device (1), pressure gauge (3) is provided on the seal nipple (5).
2. the integrated sealing system safety testing device of LWD according to claim 1, which is characterized in that the dynamical element is
Cylinder (10) or hydraulic cylinder (11).
3. the integrated sealing system safety testing device of LWD according to claim 1, which is characterized in that sleeve (6) are opened
External screw thread is provided on mouth end (62), the internal thread coordinated with the external screw thread is provided on the seal nipple (5).
4. the integrated sealing system safety testing device of the LWD according to claim 1 or 3, which is characterized in that the seal nipple
(5) it is provided with sealing ring between the openend (62).
5. the integrated sealing system safety testing device of LWD according to claim 4, which is characterized in that the seal nipple (5)
On be additionally provided with relief hole, pressure release plug (4) is installed on the relief hole.
6. the integrated sealing system safety testing device of LWD according to claim 5, which is characterized in that the pressure release plug (4)
It is threadedly coupled between the relief hole.
7. the integrated sealing system safety testing device of LWD according to claim 4, which is characterized in that the seal nipple (5)
The upper front of motor with the openend (62) is provided with carries silk (9) convenient for lifting.
8. the integrated sealing system safety testing device of LWD according to claim 1, which is characterized in that described device further includes
High pressure line (2), the pressure device (1) are connect by the high pressure line (2) with the quick coupling (7).
9. the integrated sealing system safety testing device of LWD according to claim 1, which is characterized in that the sleeve (6) by
Press ranging from 50-120Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721643517.8U CN207600694U (en) | 2017-11-30 | 2017-11-30 | A kind of integrated sealing system safety testing device of LWD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721643517.8U CN207600694U (en) | 2017-11-30 | 2017-11-30 | A kind of integrated sealing system safety testing device of LWD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207600694U true CN207600694U (en) | 2018-07-10 |
Family
ID=62761973
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721643517.8U Expired - Fee Related CN207600694U (en) | 2017-11-30 | 2017-11-30 | A kind of integrated sealing system safety testing device of LWD |
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| Country | Link |
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| CN (1) | CN207600694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741310A (en) * | 2017-11-30 | 2018-02-27 | 贝兹维仪器(苏州)有限公司 | A kind of integrated sealing system safety testing device of LWD |
-
2017
- 2017-11-30 CN CN201721643517.8U patent/CN207600694U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741310A (en) * | 2017-11-30 | 2018-02-27 | 贝兹维仪器(苏州)有限公司 | A kind of integrated sealing system safety testing device of LWD |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180710 Termination date: 20201130 |