CN201867287U - Sealing detection device for threads on pipe fittings in pipeline - Google Patents
Sealing detection device for threads on pipe fittings in pipeline Download PDFInfo
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- CN201867287U CN201867287U CN2010205456501U CN201020545650U CN201867287U CN 201867287 U CN201867287 U CN 201867287U CN 2010205456501 U CN2010205456501 U CN 2010205456501U CN 201020545650 U CN201020545650 U CN 201020545650U CN 201867287 U CN201867287 U CN 201867287U
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Abstract
The utility model discloses a sealing detection device for threads on pipe fittings in a pipeline, which comprises a pipe body and a packer, wherein one end of the pipe body is sealed, and the other end of the pipe body is opened; the packer is arranged on the pipe body and comprises a first packer and a second packer; and a breather hole communicated with the inside and the outside of the pipe body is formed on a pipe body between the first packer and the second packer. The detection device is convenient to use and portable and can carry out the tightness test to the threads on the pipe fittings in the pipeline on the construction site.
Description
Technical field
The utility model relates to the package seal checker field of the screw thread of the connecting portion in the pipeline, the pipe fitting thread seal pick-up unit in specifically a kind of pipeline.
Background technology
Carry the pipeline of gas or liquid need bear certain pressure that gas in the pipeline or liquid bring.For avoiding gas or leak of liquid in course of conveying, after pipe fitting couples together, often need screw thread to the connecting portion of these pipe fittings to carry out sealing and detect, or sealing is carried out at the reparation position of the pipe fitting after repairing detect.For example need in the petroleum industry to connect into the conveying that delivery line is finished oil, gas with pipe fittings such as tubing and casing and aids thereof.The pipeline that pipe fitting such as tubing and casing and aid connects and composes forms oil, the moving passage of air-flow, is called oil casing.In order to guarantee that oil or gas flow out oil well or gas well according to the channel security of designing requirement, oil casing just all needs good sealing.
The way of sealing effectiveness that detects the screw thread of oil casing in the prior art is: in the laboratory the pin thread of every tubing and casing or aid and box, be connected with male joint with the box of standard respectively, set up confined space, in confined space, inject a certain amount of high pressure detected gas then, the detected pipe fitting of water submergence again, detected within a certain period of time pipe fitting does not emit bubble, illustrates that the sealing of detected pipe fitting reaches requirement.Detect qualified after, more detected pipe fittings such as tubing and casing or aid are unloaded from joint, be transported to the working-yard respectively and use.In the working-yard, oil field, tubing and casing or aid are joined together to form the tubing string string by root.Above-mentioned detection methodologies is complicated and can not use at the scene, just play for the connecting thread on the tubing and casing in the check of setting the sealing after whether can satisfying connection under the high pressure, promptly check screw thread whether qualified, and the sealing of the actual tubing string junction screw thread that couples together in scene is not tested, breadboard detection conclusion can only illustrate that connecting thread can meet the requirements of seal degree, but can not guarantee that but the sealing situation of reality that the scene is linked to be the screw thread of aids such as the tubing and casing of pipeline or box cupling is good.
The utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides the pipe fitting thread seal pick-up unit in a kind of pipeline that can be at the construction field (site) the sealing of the pipe fitting after connecting be detected.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
Pipe fitting thread seal pick-up unit in a kind of pipeline comprises:
Body, the end sealing of body, the other end opening of body;
Packer is located on the body, comprises first packer and second packer;
Wherein, have the bleeder vent of communicating pipe inside and outside on the body between first packer and second packer.
Further, described first packer and second packer comprise respectively the piston type sliding sleeve that is placed on the body, packing rubber sleeve and and cap, wherein
And cap is threaded with body;
The piston type sliding sleeve is connected with the body slipper seal, forms pressure chamber between piston type sliding sleeve and the body, has the pressure transmission hole that is communicated with pressure chamber and body inside on the body, and the medium effect in the chamber of being stressed of piston type sliding sleeve endwisely slips and pushes packing rubber sleeve;
Packing rubber sleeve be located at and cap and piston type sliding sleeve between, and set by piston type sliding sleeve extrusion expansion.
Further, described body is formed by connecting by multistage, comprise the first sliding sleeve bar, pipe core and the second sliding sleeve bar, one end of pipe core is connected with the first sliding sleeve bar, the other end is connected with the second sliding sleeve bar, first packer is located on the first sliding sleeve bar, second packer is located on the second sliding sleeve bar, have two axial through holes in the described pipe core at least, the two ends of the through hole that one of them is axial are provided with a pressure control one-way valve respectively, the conducting direction of two pressure control one-way valves is opposite, and bleeder vent is located on the body between the two pressure control one-way valves.
As a kind of selection, described bleeder vent is two, is equipped with the pressure control one-way valve on each bleeder vent, and the conducting direction of described pressure control one-way valve is opposite.
Further, described pressure control one-way valve is a spring non-return valve.
Further, sealing one end of described body is connected with starting taper.
Further, high voltage interface one end of described body is connected with drop handle.
Further, described pick-up unit also comprises the gas collection cover, and described gas collection cover comprises:
The first semicanal body, inwall have the first semi-circular plate and the second semi-circular plate;
The second semicanal body, inwall have three semi-circular plate corresponding with the first semi-circular plate and the four semi-circular plate corresponding with the second semi-circular plate;
The wherein said first semi-circular plate and the 3rd semi-circular plate are formed first dividing plate, and the described second semi-circular plate and the 4th semi-circular plate are formed second partition, have the detection hole on the tube wall between described first dividing plate and the second partition.
Further, the inwall of the described first semicanal body also has the 5th semi-circular plate, and the 5th semi-circular plate is between the first semi-circular plate and the second semi-circular plate; The inwall of the described second semicanal body has the six semi-circular plate corresponding with the 5th semi-circular plate, and the described the 5th semi-circular plate and the 6th semi-circular plate are formed the 3rd dividing plate, all have the detection hole on the tube wall of the 3rd dividing plate both sides.
Further, the described first semicanal body is connected by hinge with the side of the second semicanal body along axis direction, and another side connects by padlock.
Compared with prior art, the beneficial effects of the utility model are:
1, pick-up unit of the present utility model only need be connected just and can use with the equipment that high-pressure medium is provided, and is easy to use, is easy to carry, and can use at the construction field (site).
2, pick-up unit of the present utility model can detect the thread seal of the connecting portion that is connected to the pipe fitting in the pipeline, the utility model device is stretched in the pipeline, with two packer settings on the inwall of the pipeline of both sides, detected position, between the utility model device and pipeline, form airtight annular space, the high-pressure medium of being introduced by high voltage interface enters in the airtight annular space from bleeder vent, and whether the sealing that can detect the connecting portion that inserts the pipe fitting in the pipeline is good.Avoided causing the problem of whole pipeline seal failure, stopped potential safety hazard owing to the thread seal that is connected into certain pipe fitting in the pipeline loses efficacy.
3, pick-up unit of the present utility model is simple in structure, and is easy to operate, and security performance is good.
Description of drawings
Fig. 1 partly cuts open figure for the structure of the preferred embodiment of the pipe fitting thread seal pick-up unit in the pipeline of the present utility model;
Fig. 2 cuts open figure for the structure of the pipe core of the preferred embodiment of the pipe fitting thread seal pick-up unit in the pipeline of the present utility model;
Fig. 3 is the structural representation of the gas collection cover of the reducing pipe nipple screw thread leakage detection apparatus in the pipeline of the present utility model;
Fig. 4 is the structural representation of open mode of the gas collection cover of the reducing pipe nipple screw thread leakage detection apparatus in the pipeline of the present utility model;
Fig. 5 cuts open figure for the another kind of structure of the pipe core of the preferred embodiment of the pipe fitting thread seal pick-up unit in the pipeline of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, but not as to qualification of the present utility model.
As depicted in figs. 1 and 2, Fig. 1 partly cuts open figure for the structure of the preferred embodiment of the pipe fitting thread seal pick-up unit in the pipeline of the present utility model; Fig. 2 cuts open figure for the structure of the pipe core of the preferred embodiment of the pipe fitting thread seal pick-up unit in the pipeline of the present utility model.Pipe fitting thread seal pick-up unit in a kind of pipeline comprises the first sliding sleeve bar 1, pipe core 2, connects the body that pipe nipple 3 and the second sliding sleeve bar 5 are threaded successively and form, and the connection is equipped with O-ring seal 39, so that guarantee the sealing of whole body.Wherein, the sealing of an end of the second sliding sleeve bar 5 of body, an end opening of the first sliding sleeve bar 1 forms high voltage interface 6.The first sliding sleeve bar 1 is provided with by first and first packer formed of cap 7, first packing rubber sleeve 8 and first piston formula sliding sleeve 9.Wherein first packing rubber sleeve 8 be located at first and cap 7 and first piston formula sliding sleeve 9 between, and be subjected to 9 extruding of first piston formula sliding sleeve and expansion sets.First and cap 7 be threaded with the first sliding sleeve bar 1.First piston formula sliding sleeve 9 is connected with 1 slipper seal of the first sliding sleeve bar.Form first pressure chamber 10 between the first piston formula sliding sleeve 9 and the first sliding sleeve bar 1.Has first pressure transmission hole 11 that is communicated with first pressure chamber 10 and the first sliding sleeve bar, 1 inside on the first sliding sleeve bar 1.The high-pressure medium that enters from high voltage interface 6 enters in first pressure chamber 10 from first pressure transmission hole 11, thereby first piston formula sliding sleeve 9 is endwisely slipped by the high-pressure medium effect in first pressure chamber 10 and pushes first packing rubber sleeve 8, first packing rubber sleeve 8 is expanded set.Equally, the second sliding sleeve bar 5 is provided with by second and second packer formed of cap 12, second packing rubber sleeve 13 and the second piston type sliding sleeve 14.Wherein second packing rubber sleeve 13 be located at second and cap 12 and the second piston type sliding sleeve 14 between, and be subjected to 14 extruding of the second piston type sliding sleeve and expansion sets.Second and cap 12 be threaded with the second sliding sleeve bar 5.The second piston type sliding sleeve 14 is connected with 5 slipper seals of the second sliding sleeve bar.Form second pressure chamber 15 between the second piston type sliding sleeve 14 and the second sliding sleeve bar 5.Has second pressure transmission hole 16 that is communicated with second pressure chamber 15 and the second sliding sleeve bar, 5 inside on the second sliding sleeve bar 5.The high-pressure medium that enters from high voltage interface 6 enters in second pressure chamber 15 from second pressure transmission hole 16, thereby the second piston type sliding sleeve 14 is endwisely slipped by the high-pressure medium effect in second pressure chamber 15 and pushes second packing rubber sleeve 13, second packing rubber sleeve 13 is expanded set.First packing rubber sleeve 8 and second packing rubber sleeve 13 form by two or more packing element serial connections.The two ends of first packing rubber sleeve 8 and second packing rubber sleeve 13 are equipped with support ring 17, so that first packing rubber sleeve 8 and second packing rubber sleeve 13 are effectively pushed.Have an axial central through hole 18 and at least one axial eccentric through-hole 19 in the described pipe core 2, have the bleeder vent 20 that is communicated with central through hole 18 and pipe core 2 outsides on the pipe core 2.One end of central through hole 18 is provided with the first pressure control one-way valve 21, and the conducting direction that the other end is provided with the second pressure control one-way valve, 22, the first pressure control one-way valves 21 and the second pressure control one-way valve 22 is opposite.Bleeder vent 20 is located between the first pressure control one-way valve 21 and the second pressure control one-way valve 22.The described first pressure control one-way valve 21 and the second pressure control one-way valve 22 are spring non-return valve.As shown in Figure 2, the described first pressure control one-way valve comprises: pressure cap 23 is threaded with central through hole 18; First valve seat 24 is connected with pressure cap 23, is provided with O-ring seal 25 between first valve seat 24 and the central through hole 18; First spool 26, the anterior slip stretched in first valve seat 24, and coinciding with first valve seat 24 partly has radial direction through hole 27; First pressure spring 28 acts on first spool 26, and first spool 26 and first valve seat 24 are combined closely.After first packing rubber sleeve 8 and second packing rubber sleeve 13 all set, first spool 26 is in the effect lower slider of high-pressure medium, high-pressure medium enters in the central through hole 18 of pipe core 2 from the radial direction through hole 27 on first spool 26, and enters into the detection of pressurizeing in the annular space between pipe core and the detected pipeline by bleeder vent 20.Obviously, set well for guaranteeing first packing rubber sleeve 8 and second packing rubber sleeve 13, the power that first pressure spring 28 acts on first spool 26 should set the pressure that needs greater than first packing rubber sleeve 8 and second packing rubber sleeve 13.The described second pressure control one-way valve 22 comprises: second valve seat 29 is threaded with central through hole 18; Second spool, 30, the second spools 30 closely contact with valve seat 29; Second pressure spring 31 acts on second spool 30, and second spool 30 is closely contacted with second valve seat 29.When pressure release was finished in detection, high-pressure medium entered in the central through hole 18 of pipe core 2 from bleeder vent 20, and then second spool 30 is opened, and high-pressure medium passes through from the slit between second spool 30 and second valve seat 29, and finally flowed out from high voltage interface 6.The first sliding sleeve bar 1 drop handle 32 that has been threaded.In the pipeline detected portion is carried out sealing and detect so that whole detection device is lowered into by rope etc.The second sliding sleeve bar 5 is connected with starting taper 33.
As shown in Figure 5, Fig. 5 cuts open figure for the structure that the another kind of the pipe core 2 of the pipe fitting thread seal pick-up unit in the pipeline of the present utility model is selected, have two bleeder vents on the tube wall of described pipe core 2, be respectively first bleeder vent 201 and second bleeder vent 202, first bleeder vent 201 is provided with the first pressure control one-way valve 21 of conducting outside pipe core 2, the first pressure control one-way valve 21 is a spring non-return valve, comprise first valve body 203, an end that has first valve seat 240 and first spool, 241, the first spools 241 in first valve body 203 has first pressure spring 242 that acts on first spool 241.When inside and outside differential pressure during greater than the pressure of first pressure spring 242, first spool 241 separates with first valve seat 240 and produces the gap, and gas passes through from the gap.Second bleeder vent 202 is provided with the second pressure control one-way valve 22 of conducting in pipe core 2, the second pressure control one-way valve 22 is a spring non-return valve, comprise second valve body 204, an end that has second valve seat 243 and second spool, 244, the second spools 244 in second valve body 204 has second pressure spring 245 that acts on second spool 244.
As one of present embodiment preferred, pick-up unit of the present utility model also comprises the gas collection cover, as shown in Figure 3 and Figure 4, Fig. 3 be the structural representation that the gas collection of the reducing pipe nipple screw thread leakage detection apparatus in the pipeline of the present utility model overlaps; Fig. 4 is the structural representation of open mode of the gas collection cover of the reducing pipe nipple screw thread leakage detection apparatus in the pipeline of the present utility model.Described gas collection cover comprises: the first semicanal body 41, inwall have the first semi-circular plate 42 and the second semi-circular plate 43; The second semicanal body 44, inwall have three semi-circular plate 45 corresponding with the first semi-circular plate 42 and the four semi-circular plate 46 corresponding with the second semi-circular plate 43.The described first semi-circular plate 42 and the 3rd semi-circular plate 45 are formed first dividing plate, and the described second semi-circular plate 43 and the 4th semi-circular plate 46 are formed second partition.The inwall of the described first semicanal body 41 also has the 5th semi-circular plate 50, the five semi-circular plates 50 between the first semi-circular plate 42 and the second semi-circular plate 43; The inwall of the described second semicanal body 44 has the six semi-circular plate 51 corresponding with the 5th semi-circular plate 50, the described the 5th semi-circular plate 50 and the 6th semi-circular plate 51 are formed the 3rd dividing plate, have first on the tube wall between first dividing plate and the 3rd dividing plate and detect hole 47-1, have second on the tube wall between the 3rd dividing plate and the second partition and detect hole 47-2.Described first detects hole 47-1 and second detects hole 47-2 and can be located at simultaneously in the first semicanal body 41 or the second semicanal body 44 one, also can be located at respectively on the first semicanal body 41 and the second semicanal body 44.When detected position is box cupling or reducing pipe nipple etc. during the threaded portion at the two ends of short pipe fitting, the gas collection cover of present embodiment can be divided into the threaded portion at pipe fitting two ends two independently spaces, so that accurately detect which end leaks.The described first semicanal body is connected by hinge 48 with the side of the second semicanal body along axis direction, and another side connects by padlock 49.
What the gas collection of implementing as the utility model overlapped is a kind of preferred, and the described first semicanal body 1 and the second semicanal body 4 all are formed in one.
What the gas collection of implementing as the utility model overlapped is another kind of preferred, and the inwall upper edge circumference of the described first semicanal body 1 and the second semicanal body 4 has mounting groove, and described first semi-circular plate to the six semi-circular plates are installed in respectively in the corresponding mounting groove.Like this, when the external diameter at detected position not simultaneously, can change the semi-circular plate of different size specification, so that adapt with the external diameter at detected position.
It is as follows to use pick-up unit of the present utility model that the screw thread of the pipe fitting in the pipeline is carried out the concrete operations step that sealing detects:
1, puts the gas collection cover at position to be checked;
2, by instruments such as wire rope pick-up unit of the present utility model is lowered in the pipeline, and makes first packer and second packer lay respectively at the two ends at detected position;
3, by injecting spike medium in the past pick-up unit of the high-pressure hose that connects high voltage interface 6 near 5MPa pressure, high pressure spike medium enters first pressure chamber 10 and second pressure chamber 15 promotes the first piston formula sliding sleeve 9 and the second piston type sliding sleeve 14 respectively, and the first piston formula sliding sleeve 9 and the second piston type sliding sleeve 14 push first packing rubber sleeve 8 respectively and second packing rubber sleeve 13 sets first packing rubber sleeve 8 and 13 expansions of second packing rubber sleeve, moment.
4, continue to inject high pressure spike medium until detected pressures, high pressure spike medium is opened first spool 26 and is entered into airtight annular space between pick-up unit of the present utility model and the pipeline inwall by bleeder vent 20, forms the voltage stabilizing interval of sealing;
5, carry out pressure release after voltage stabilizing a period of time, high pressure spike medium is opened second spool 30, and spike medium in the airtight annular space and the spike medium in the pick-up unit are all discharged from high-pressure hose.
6, after the pressure release, if reveal, then can assemble a large amount of spike media in the gas collection cover, whether in the detection hole of overlapping by the probe insertion gas collection with leak locator, can detect has leakage, thereby whether the sealing property of screw thread of judging detected position is qualified.Certainly, also can during voltage stabilizing, detect.Have high-pressure medium in the pipeline after all, detect after pressure release, the security meeting is high.
7, after detection is finished, propose pick-up unit, take off the gas collection cover, prepare next time and detect.
Pick-up unit of the present utility model can adopt helium as tracer gas, also can adopt other tracer gass or spike liquid.Is example with helium as missing gas, and precision of detecting leak gas can reach: 1x10
-7Bar.ml/s.Helium diffuse for minimizing leaks out puts the gas collection cover outside pipeline.
Above embodiment is an exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.
Claims (10)
1. the pipe fitting thread seal pick-up unit in the pipeline is characterized in that, comprising:
Body, the end sealing of body, the other end opening of body;
Packer is located on the body, comprises first packer and second packer;
Wherein, have the bleeder vent of communicating pipe inside and outside on the body between first packer and second packer.
2. the pipe fitting thread seal pick-up unit in the pipeline according to claim 1 is characterized in that, described first packer and second packer comprise respectively the piston type sliding sleeve that is placed on the body, packing rubber sleeve and and cap, wherein
And cap is threaded with body;
The piston type sliding sleeve is connected with the body slipper seal, forms pressure chamber between piston type sliding sleeve and the body, has the pressure transmission hole that is communicated with pressure chamber and body inside on the body, and the medium effect in the chamber of being stressed of piston type sliding sleeve endwisely slips and pushes packing rubber sleeve;
Packing rubber sleeve be located at and cap and piston type sliding sleeve between, and set by piston type sliding sleeve extrusion expansion.
3. the pipe fitting thread seal pick-up unit in the pipeline according to claim 1, it is characterized in that, described body is formed by connecting by multistage, comprise the first sliding sleeve bar, the pipe core and the second sliding sleeve bar, one end of pipe core is connected with the first sliding sleeve bar, the other end is connected with the second sliding sleeve bar, first packer is located on the first sliding sleeve bar, second packer is located on the second sliding sleeve bar, have two axial through holes in the described pipe core at least, the two ends of the through hole that one of them is axial are provided with a pressure control one-way valve respectively, and the conducting direction of two pressure control one-way valves is opposite, and bleeder vent is located on the body between the two pressure control one-way valves.
4. the pipe fitting thread seal pick-up unit in the pipeline according to claim 1 is characterized in that described bleeder vent is two, is equipped with the pressure control one-way valve on each bleeder vent, and the conducting direction of described pressure control one-way valve is opposite.
5. according to the pipe fitting thread seal pick-up unit in claim 3 or the 4 described pipelines, it is characterized in that described pressure control one-way valve is a spring non-return valve.
6. the pipe fitting thread seal pick-up unit in the pipeline according to claim 1 is characterized in that, sealing one end of described body is connected with starting taper.
7. the pipe fitting thread seal pick-up unit in the pipeline according to claim 1 is characterized in that, high voltage interface one end of described body is connected with drop handle.
8. the pipe fitting thread seal pick-up unit in the pipeline according to claim 1 is characterized in that described pick-up unit also comprises the gas collection cover, and described gas collection cover comprises:
The first semicanal body, inwall have the first semi-circular plate and the second semi-circular plate;
The second semicanal body, inwall have three semi-circular plate corresponding with the first semi-circular plate and the four semi-circular plate corresponding with the second semi-circular plate;
The wherein said first semi-circular plate and the 3rd semi-circular plate are formed first dividing plate, and the described second semi-circular plate and the 4th semi-circular plate are formed second partition, have the detection hole on the tube wall between described first dividing plate and the second partition.
9. the pipe fitting thread seal pick-up unit in the pipeline according to claim 8 is characterized in that the inwall of the described first semicanal body also has the 5th semi-circular plate, and the 5th semi-circular plate is between the first semi-circular plate and the second semi-circular plate; The inwall of the described second semicanal body has the six semi-circular plate corresponding with the 5th semi-circular plate, and the described the 5th semi-circular plate and the 6th semi-circular plate are formed the 3rd dividing plate, all have the detection hole on the tube wall of the 3rd dividing plate both sides.
10. the pipe fitting thread seal pick-up unit in the pipeline according to claim 8 is characterized in that, the described first semicanal body is connected by hinge with the side of the second semicanal body along axis direction, and another side connects by padlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205456501U CN201867287U (en) | 2010-09-28 | 2010-09-28 | Sealing detection device for threads on pipe fittings in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205456501U CN201867287U (en) | 2010-09-28 | 2010-09-28 | Sealing detection device for threads on pipe fittings in pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867287U true CN201867287U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205456501U Expired - Fee Related CN201867287U (en) | 2010-09-28 | 2010-09-28 | Sealing detection device for threads on pipe fittings in pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201867287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418839A (en) * | 2010-09-28 | 2012-04-18 | 安东石油技术（集团）有限公司 | Sealing detection device for threads of pipe fitting in pipeline |
| CN105630046A (en) * | 2015-12-31 | 2016-06-01 | 山东天工石油装备有限公司 | Pipeline intelligent monitoring device |
-
2010
- 2010-09-28 CN CN2010205456501U patent/CN201867287U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418839A (en) * | 2010-09-28 | 2012-04-18 | 安东石油技术（集团）有限公司 | Sealing detection device for threads of pipe fitting in pipeline |
| CN102418839B (en) * | 2010-09-28 | 2014-01-22 | 安东石油技术（集团）有限公司 | Sealing detection device for threads of pipe fitting in pipeline |
| CN105630046A (en) * | 2015-12-31 | 2016-06-01 | 山东天工石油装备有限公司 | Pipeline intelligent monitoring device |
| CN105630046B (en) * | 2015-12-31 | 2017-08-04 | 山东天工石油装备有限公司 | A kind of pipeline Intellectualized monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Anton Oil & Gas Engineering Technology Services Co., Ltd. Assignor: Anton Oilfield Services (Group) Ltd. Contract record no.: 2011990001090 Denomination of utility model: Sealing detection device for threads of pipe fitting in pipeline Granted publication date: 20110615 License type: Exclusive License Record date: 20111213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20160928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |