CN205228806U - Packer simulation detection device - Google Patents
Packer simulation detection device Download PDFInfo
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- CN205228806U CN205228806U CN201521033445.6U CN201521033445U CN205228806U CN 205228806 U CN205228806 U CN 205228806U CN 201521033445 U CN201521033445 U CN 201521033445U CN 205228806 U CN205228806 U CN 205228806U
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- packer
- clamp
- driving cylinder
- pull bar
- crossbeam
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Abstract
The utility model provides a packer simulation detection device can realize the simulation experiment to the packer, has rational in infrastructurely simultaneously, endures the characteristics that the high pressure can the reinforce, can carry on that the epicoele is experimental, the cavity of resorption is experimental to the packer, carry draw sit seal, the deblocking is experimental, hydraulic pressure sits that to seal the deblocking experimental. Adopt stop device, but the fixed cross beam position, the additional load passes through on crossbeam and stop device transmit the pull rod, and the driving cylinder does not bear the additional load, and the driving cylinder that need not to select bearing capacity too big has reduced the equipment configuration cost. Avoided the adverse effect of additional loading test system, guaranteed that the test OK goes on. Stop device can remove, and the packer is packed into or is taken out the simulation wellbore hole convenience.
Description
Technical field
The utility model relates to testing equipment technical field, is specifically a kind of packer analoging detecting device.
Background technology
Packer is isolated payzone at oil exploitation Main Function, and separate the effects such as water filling, the performance of its sealing to packer plays key effect.Normally can work in down-hole in order to ensure separation scraper, need aboveground test in engineering after, packer could be arranged into down-hole, in order to study packer, also need to build pilot system and studying.For the test unit of packer, implementation existing more in prior art.Authorization Notice No. is that the Chinese utility model patent of CN2521604Y proposes a kind of packer pressure testing & detecting device, adopts analog casing, achieves and detect the pressure testing of packer; Publication number is that the application for a patent for invention of CN103528810A realizes the setting of packer, decapsulation functions test by hydraulic cylinder; Nearer publication No. is that the application for a patent for invention of CN105004484A constructs down-hole packer high temperature and pressure test device, and what can realize simulating underground working and packer sets process.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of packer analoging detecting device being different from prior art, the simulated experiment to packer can be realized, have rational in infrastructure simultaneously, the feature that withstand high pressures ability is strong, epicoele test, cavity of resorption test can be carried out to packer, lift sets, separates testing sealing, hydraulic setting solution testing sealing.
The technical solution of the utility model is: a kind of packer analoging detecting device, comprise wellbore hole simulator, front head, rear head, driving cylinder, driving cylinder seat, connecting rod, pull bar, the two ends of described wellbore hole simulator connect front head and rear head respectively, and driving cylinder is fixed on driving cylinder seat, and connecting rod one end connects driving cylinder bar, the other end connects packer, described connecting rod and packer coaxial with wellbore hole simulator, one end of described pull bar is connected on driving cylinder seat, and the other end is fixedly connected with front head; ; It is characterized in that: also comprise crossbeam, described crossbeam and driving cylinder bar or connecting rod are fixed, and movable set is on pull bar, arranges dissoluble stop means between described crossbeam and pull bar.
When carrying out simulation test, need the liquid pressing to passing into wellbore hole simulator, pressure will be transmitted on driving cylinder, additional load is produced to driving cylinder, when test pressure is larger, this additional load causes driving cylinder to bear sizable strength, and the type selecting of driving cylinder must be very large.In addition, the actuating medium of current driving cylinder is mostly air or the compressible medium of hydraulic pressure wet goods, during test, in the process of balance additional load, likely cause actuating medium volume change in driving cylinder chamber, change causes connecting rod to be subjected to displacement or vibrates, thus causes adverse effect to test.In order to overcome the above problems, improve: also comprise crossbeam to technical scheme of the present invention, described crossbeam and driving cylinder bar or connecting rod are fixed, and movable set is on pull bar, arranges dissoluble stop means between described crossbeam and pull bar.
The tubing string that wellbore hole simulator relies in order to simulate packer work, driving cylinder can be used for being inserted by packer or extracting wellbore hole simulator out, also can in order to control setting and deblocking of packer; During test, adopt stop means, can fixed cross beam position, described additional load is delivered on pull bar by crossbeam and stop means, and driving cylinder does not bear additional load, without the need to the driving cylinder selecting load-bearing capacity excessive, decreases equipment configuration cost.The more important thing is, avoid the adverse effect of additional load pilot system, ensure that test is normally carried out.Stop means can be removed, and packer loads or takes out wellbore hole simulator conveniently.
The implementation of described stop means can be: pull bar arranges screw thread, and pull bar arranges nut in any one or both sides of crossbeam.Before test, nut unscrews, and crossbeam can slide on pull bar, and packer loads wellbore hole simulator and after setting, screws crossbeam one or both sides nut and make both be adjacent to; During test, by rear head in wellbore hole simulator during charged pressure liquid pilot, the pressure direction that pressure fluid produces packer, towards driving cylinder direction, is arranged on crossbeam near the nut of driving cylinder and bears pressure; By front head in wellbore hole simulator during charged pressure liquid pilot, the pressure direction that pressure fluid produces packer, away from driving cylinder direction, is arranged on crossbeam and bears pressure away from the nut of driving cylinder; The additional load that the pressure of test(ing) medium produces is delivered on pull bar by crossbeam, and driving cylinder does not bear additional load, thus avoids the adverse effect of additional load to driving cylinder type selecting and pilot system.
The implementation of described stop means also can be: pull bar is step-like, crossbeam is arranged clamp and clamp driver part, and described clamp driver part drives clamp embed or shift out pull bar thin segment.Before test, unclamp clamp, crossbeam can slide on pull bar, and after packer is sent into wellbore hole simulator relevant position by driving cylinder, clamp driver part drives clamp to embed pull bar thin segment; During test, the additional load that the pressure of test(ing) medium produces is delivered on pull bar by crossbeam, and driving cylinder does not bear additional load, thus avoids the adverse effect of additional load to driving cylinder type selecting and pilot system.
Above two kinds is the way of realization of comparatively typical stop means, and adopt fastening nuts mode, crossbeam can rest on the optional position on pull bar, and packer can be tested in wellbore hole simulator optional position.Adopt clamp clamping mode, crossbeam can only rest on the ad-hoc location of pull bar, but adopts clamp driver part to drive clamp, is convenient to realize controlling.
Clamp driver part can be clamp driving cylinder, the pattern of described clamp driving cylinder and clamp can be the one of following two kinds of modes: mode one, the quantity of described clamp is one, clamp front portion is semicircle and chimeric with pull bar thin segment, clamp rear portion is connected with the cylinder bar of clamp driving cylinder, and clamp driving cylinder drives clamp to stretch out and retraction; Mode two, the quantity of described clamp is two, and clamp front inner is semicircle and chimeric with pull bar thin segment, two clamp are mounted opposite, the hinged control link in clamp rear portion, the cylinder bar of control link and clamp driving cylinder is hinged, and clamp driving cylinder driver card icarceration is closed and opened.
Different packer length is different, and its testing position also has different requirements, in order to the testing position adapting to different packers is different, can also adopt dissoluble stop means to be connected on driving cylinder seat and pull bar.Accordingly, if pull bar is engagement thread, the connected mode so between driving cylinder seat and pull bar is: described driving cylinder cover for seat is contained on pull bar, and pull bar arranges nut in driving cylinder seat both sides.If pull bar is step-like, the connected mode so between driving cylinder seat and pull bar is: described driving cylinder cover for seat is contained on pull bar, driving cylinder seat is arranged clamp and clamp driver part, and described clamp driver part drives clamp embed or shift out pull bar thin segment.Driving cylinder seat and crossbeam can be made to move with the mode of motion being similar to looper; Adjust convenient.
When tested packer be pull-type set time, driving cylinder is adopted to drive packer to realize setting, be not easy to adopt driving cylinder that packer is sent into wellbore hole simulator, in order to address this problem, can be by the following technical solutions, packer analoging detecting device, also comprise base, described driving cylinder seat is fixed on base, described front head is divided into fixed seal head and mobile end socket two parts, described fixed seal head and mobile end socket adopt dismountable link to be connected, fixed seal head is fixed on base, pull bar and fixed seal head are fixed, wellbore hole simulator is arranged between mobile end socket and rear head, mobile end socket, rear head is arranged on the travelling car that can move axially along base respectively.When packer is loaded wellbore hole simulator by needs, first mobile end socket and fixed seal head are taken apart, the assembly recession that mobile end socket, wellbore hole simulator, rear head are formed, connecting rod inserts front head, tested packer is arranged on connecting rod, then wellbore hole simulator is moved forward, be inserted in tested packer, fixing mobile end socket and fixed seal head, just can realize carrying out pull-type to packer and set.
When the vertical installation of wellbore hole simulator, pull bar needs fixing, can by the following technical solutions: also comprise framework, described tie rod end is fixed on framework.
Front head is provided with the fluid path be connected with wellbore hole simulator endoporus.After packer setting, the fluid path injection test liquid that the wellbore hole simulator endoporus arranged by front head is connected, can realize the simulated pressure test above to packer.
Rear head is provided with the fluid path with wellbore hole simulator endoporus.The fluid path injection test liquid that the wellbore hole simulator endoporus arranged by rear head is connected, can realize the simulated pressure test below to packer.
Connecting rod is provided with the fluid path be connected with packer center pit.Be provided with the fluid path injection test liquid be connected with packer center pit by connecting rod, can realize setting test to hydraulic packer.
Accompanying drawing explanation
Fig. 1 is the front elevation that packer analoging detecting device of the present utility model adopts an embodiment of fastening nuts crossbeam mode.
Fig. 2 is packer analoging detecting device side view in Fig. 1.
Fig. 3 is the partial enlarged drawing of packer analoging detecting device in Fig. 1.
Fig. 4 is the front elevation that packer analoging detecting device of the present utility model adopts clamp clamping crossbeam mode.
Fig. 5 is the partial enlarged drawing of packer analoging detecting device in Fig. 4.
Fig. 6, Fig. 7 are the schematic diagram of the packer analoging detecting device of Fig. 4, a kind of embodiment of clamp, and Fig. 6 is the states of clamp when embedding pull bar thin segment, and Fig. 7 is the states of clamp when shifting out pull bar thin segment.
Fig. 8, Fig. 9 are the schematic diagram of the another kind of embodiment of clamp, and Fig. 8 is the states of clamp when embedding pull bar thin segment, and Fig. 9 is the states of clamp when shifting out pull bar thin segment.
Embodiment
Embodiment 1.
Embodiment 1 is an embodiment of the packer analoging detecting device involved by the utility model, by reference to the accompanying drawings 1, Fig. 2, Fig. 3 explanation.
As shown in Figure 1, 2: driving cylinder 1 is fixed on driving cylinder seat 2, driving cylinder bar is connected with connecting rod 4 by crossbeam 3, and driving cylinder seat 2 is connected with front head 6 by pull bar 5, arranges wellbore hole simulator 7 between front head 6 and rear head 8, and connecting rod 4 rear end connects waits to try packer.Connecting rod 4 is provided with the fluid path 41 be connected with packer center pit, and front head 6 is provided with the fluid path 61 be connected with wellbore hole simulator 7 endoporus, and rear head 8 is provided with the fluid path 81 with wellbore hole simulator 7 endoporus.Connecting rod 4 and packer, wellbore hole simulator 7 are coaxial; Be provided with the fluid path 41 injection test liquid be connected with packer center pit by connecting rod 4, can realize setting test to hydraulic packer; The fluid path 61 injection test liquid that the wellbore hole simulator endoporus arranged by front head 6 is connected, can realize the simulated pressure test above to packer; The fluid path 81 injection test liquid that the wellbore hole simulator endoporus arranged by rear head 8 is connected, can realize the simulated pressure test below to packer.
For making the structure in Fig. 1 more clear, arranging Fig. 2 is the zoomed-in view that in Fig. 1, double dot dash line frame goes out part, and Fig. 2 middle cross beam 3 movable set is on pull bar 5.Stretching out of driving cylinder bar can drive crossbeam 3 to slide on pull bar 5 with retraction, and pull bar 5 arranges screw thread, pull bar 5 arranges nut 31 and nut 32 in crossbeam 3 both sides, before test, rotating nut 31 and nut 32 compress crossbeam 3.When pressure fluid is passed into the packer left side cavity in wellbore hole simulator 7, liquid has pressure P 1 to the right to packer, pressure P 1 passes to crossbeam 3 by connecting rod 4, crossbeam 3 has the trend of moving to the right, nut 32 limits crossbeam 3 and bears pressure P 1, thus avoids pulling force and pass on driving cylinder bar.To when on the right of the packer in wellbore hole simulator 7, cavity passes into pressure fluid, liquid has pressure P 2 to the left to packer, pressure P 2 passes to crossbeam 3 by connecting rod 4, crossbeam 3 has the trend of moving to the left, nut 31 limits crossbeam 3 and bears pressure P 2, thus avoids pulling force and pass on driving cylinder bar.The setting of nut 31,32, avoids driving cylinder and bears additional load, and without the need to selecting excessive driving cylinder, decrease cost, structure is compacter; The more important thing is, eliminate the possibility that driving cylinder is subjected to displacement or vibrates, avoid the adverse effect of test.
Driving cylinder seat 2 is sleeved on pull bar 5, arranges nut 21, nut 22 in driving cylinder seat 2 both sides, and when needs adjustment driving cylinder seat 2 position, first loosening nut 21, nut 22, mobile driving cylinder seat 2 is to target location, then tightening nut 21, nut 22.
As shown in Figure 3, packer analoging detecting device in the present embodiment adopts horizontal layout, base 11 fixes on the ground, driving cylinder seat 2, front head 6 are divided into mobile end socket 62 and fixed seal head 63, fluid path 61 is arranged on mobile end socket 62, and mobile end socket 62 is connected with fixed seal head 63 by bolt, and fixed seal head 63 is fixing on the pedestal 11, pull bar 5 right-hand member is fixedly connected with fixed seal head 63, and connecting rod 4 is inserted in wellbore hole simulator by the packoff 64 that fixed seal head 63 is arranged.Mobile end socket 62, rear head 8 arrange on the travelling car that can move axially along base respectively, and the assembly that mobile end socket 62, wellbore hole simulator, rear head 8 are formed can move axially along base 11, is convenient to install tested packer.Diagram double dot dash line is the position of travelling car when installing tested packer of installing rear head 8.Driving cylinder 9 one end is fixing on the pedestal 11, and one end is fixed on travelling car, drives travelling car to move back and forth by driving cylinder 9.
Clamp 10 fixed-analog pit shaft is set between front head 6 and rear head 9.
Travelling car also arranges clamp, and the position being convenient to wellbore hole simulator end is fixed.
Crossbeam 3 is also fixed on travelling car, not only firm and conveniently moving.
When packer is tested, first mobile end socket 62 and fixed seal head 63 are taken apart, the assembly recession that mobile end socket 62, wellbore hole simulator 7, rear head 8 are formed, connecting rod inserts fixed seal head 63, tested packer is arranged on connecting rod, then the assembly reach mobile end socket 62, wellbore hole simulator 7, rear head 8 formed, is inserted in tested packer, fixing mobile end socket 62 and fixed seal head 63; When packer be pull-type set time, driving cylinder 1 action realizes carrying out pull-type to packer and setting; When packer be fluid pressure type set time, pass into pressure fluid by fluid path 41 and set.The fluid path 61 injection test liquid that the wellbore hole simulator endoporus arranged by front head 6 is connected, can realize the simulated pressure test above to packer; The fluid path 81 injection test liquid that the wellbore hole simulator endoporus arranged by rear head 8 is connected, can realize the simulated pressure test below to packer.
Embodiment 2.
Embodiment 2 is another embodiments of the packer analoging detecting device involved by the utility model, by reference to the accompanying drawings 4, Fig. 5, Fig. 6, Fig. 7 explanation.
In the present embodiment, the layout of packer analoging detecting device is vertical, and as Fig. 4, wellbore hole simulator 7 is embedded in underground, and rear head 9 is also arranged on underground, and wellbore hole simulator 7 upper end is connected with front head 6.Pull bar 5 lower end is connected with front head 6, and described pull bar 5 upper end is fixed on framework 12.
As shown in Figure 5, pull bar 5 is step-like, and crossbeam 3 is sleeved on pull bar 5, crossbeam 3 is installed clamp 33 and clamp driver part, and in the present embodiment, the pattern of pull bar driver part is clamp driving cylinder 34.Before test, clamp driving cylinder 34 drives clamp 33 to leave crossbeam 3, and crossbeam 3 can slide on pull bar 5, and after wellbore hole simulator 7 relevant position sent into by packer by driving cylinder 1, clamp driving cylinder 34 drives clamp 33 to embed pull bar thin segment, thus fixed cross beam 3; During test, the additional load that the pressure of test(ing) medium produces is delivered on pull bar 5 by crossbeam 3, and driving cylinder 1 does not bear additional load, thus avoids the adverse effect of additional load to driving cylinder 1 type selecting and pilot system.
When fluid pressure type set packer is tested, first driving cylinder bar is regained, tested packer is arranged on connecting rod, then driving cylinder bar is stretched out, tested packer is inserted in wellbore hole simulator, packoff 64 is arranged on front head 6, passes into pressure fluid by fluid path 41 and set.The fluid path 61 injection test liquid that the wellbore hole simulator endoporus arranged by front head 6 is connected, can realize the simulated pressure test above to packer; The fluid path 81 injection test liquid that the wellbore hole simulator endoporus arranged by rear head 8 is connected, can realize the simulated pressure test below to packer.
Driving cylinder seat 2 is sleeved on pull bar 5, driving cylinder seat 2 is also arranged clamp and clamp driver part, and described clamp driver part drives clamp embed or shift out pull bar thin segment, driving cylinder seat 2 can be fixed on certain altitude.By the cooperation of driving cylinder, clamp and clamp driver part, the upper-lower position adjustment of driving cylinder seat 2 can be realized.
Fig. 6,7 is a kind of ways of realization of clamp 33 and clamp driving cylinder 34, and clamp 33 front portion is semicircle and chimeric with pull bar 5 thin segment, and clamp 33 rear portion is connected with the cylinder bar of clamp driving cylinder 34, and clamp driving cylinder 34 drives clamp to stretch out and retraction; As shown in Figure 6, when clamp driving cylinder 34 cylinder bar stretches out, the anterior semicircle embedding thin portion of pull bar of clamp 33; As shown in Figure 7, when clamp driving cylinder 34 cylinder bar is retracted, clamp 33 are anterior semicircle away from pull bar.
Embodiment 3.
The present embodiment is the another kind of embodiment of clamp and clamp driving cylinder.
Clamp 35 front inner is semicircle and chimeric with pull bar thin segment as shown in Figure 8, Figure 9, two clamp 35 are mounted opposite, the hinged control link 36 in clamp 35 rear portion, control link 36 is hinged with the cylinder bar of clamp driving cylinder 34, and clamp driving cylinder 34 drives clamp 35 to close and open.As shown in Figure 8, when clamp driving cylinder 34 cylinder bar stretches out, clamp 35 front inner semicircle embeds the thin portion of pull bar; As shown in Figure 9, when clamp driving cylinder 34 cylinder bar is retracted, clamp 35 open, and it is anterior semicircle away from the thin portion of pull bar.
Claims (10)
1. a packer analoging detecting device, comprise wellbore hole simulator, front head, rear head, driving cylinder, driving cylinder seat, connecting rod, pull bar, the two ends of described wellbore hole simulator connect front head and rear head respectively, and driving cylinder is fixed on driving cylinder seat, and connecting rod one end connects driving cylinder bar, the other end connects packer, described connecting rod and packer coaxial with wellbore hole simulator, one end of described pull bar is connected on driving cylinder seat, and the other end is fixedly connected with front head; It is characterized in that: also comprise crossbeam, described crossbeam and driving cylinder bar or connecting rod are fixed, and movable set is on pull bar, arranges dissoluble stop means between described crossbeam and pull bar.
2. packer analoging detecting device according to claim 1, is characterized in that: the form of the stop means arranged between described crossbeam and pull bar is: pull bar arranges screw thread, and pull bar arranges nut in any one or both sides of crossbeam.
3. packer analoging detecting device according to claim 1, it is characterized in that: the form of the stop means arranged between described crossbeam and pull bar is: pull bar is step-like, crossbeam is arranged clamp and clamp driver part, described clamp driver part drives clamp embed or shift out pull bar thin segment.
4. packer analoging detecting device according to claim 3, it is characterized in that: clamp driver part is clamp driving cylinders, the pattern of described clamp driving cylinder and clamp is with under type: described clamp front portion is semicircle and chimeric with pull bar thin segment, clamp rear portion is connected with the cylinder bar of clamp driving cylinder, and clamp driving cylinder drives clamp to stretch out and retraction.
5. packer analoging detecting device according to claim 3, it is characterized in that: described clamp front inner is semicircle and chimeric with pull bar thin segment, two clamp are mounted opposite, the hinged control link in clamp rear portion, the cylinder bar of control link and clamp driving cylinder is hinged, and clamp driving cylinder driver card icarceration is closed and opened.
6. the packer analoging detecting device according to any one of claim 1 to 5, it is characterized in that: also comprise base, described driving cylinder seat is fixed on base, described front head is divided into fixed seal head and mobile end socket two parts, described fixed seal head and mobile end socket adopt dismountable link to be connected, fixed seal head is fixed on base, pull bar and fixed seal head are fixed, wellbore hole simulator is arranged between mobile end socket and rear head, and mobile end socket, rear head are arranged on the travelling car that can move axially along base respectively.
7. the packer analoging detecting device according to any one of claim 1 to 5, is characterized in that: also comprise framework, described tie rod end is fixed on framework.
8. the packer analoging detecting device according to any one of claim 1 to 5, is characterized in that: front head is provided with the fluid path be connected with wellbore hole simulator endoporus.
9. the packer analoging detecting device according to any one of claim 1 to 5, is characterized in that: rear head is provided with the fluid path with wellbore hole simulator endoporus.
10. the packer analoging detecting device according to any one of claim 1 to 5, is characterized in that: connecting rod is provided with the fluid path be connected with packer center pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521033445.6U CN205228806U (en) | 2015-12-14 | 2015-12-14 | Packer simulation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521033445.6U CN205228806U (en) | 2015-12-14 | 2015-12-14 | Packer simulation detection device |
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| Publication Number | Publication Date |
|---|---|
| CN205228806U true CN205228806U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521033445.6U Expired - Fee Related CN205228806U (en) | 2015-12-14 | 2015-12-14 | Packer simulation detection device |
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| CN (1) | CN205228806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424345A (en) * | 2015-12-14 | 2016-03-23 | 青岛中瑞泰软控技术有限公司 | Packer simulation detection device |
-
2015
- 2015-12-14 CN CN201521033445.6U patent/CN205228806U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424345A (en) * | 2015-12-14 | 2016-03-23 | 青岛中瑞泰软控技术有限公司 | Packer simulation detection device |
| CN105424345B (en) * | 2015-12-14 | 2018-03-27 | 青岛中瑞泰软控科技股份有限公司 | Packer analoging detecting device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 266109 Shandong city of Qingdao province high tech Zone Songyuan Road No. 17 Qingdao Industrial Technology Research Institute A District 4 floor A1 Building Room 403 Patentee after: The Tai Ruan of Qingdao China and Sweden control techniques company limited Address before: Miao road Laoshan District 266061 Shandong city of Qingdao province 6-8 Patentee before: The Tai Ruan of Qingdao China and Sweden control techniques company limited |
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| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266109 Shandong city of Qingdao province high tech Zone Songyuan Road No. 17 Qingdao Industrial Technology Research Institute A District 4 floor A1 Building Room 403 Patentee after: Qingdao Ruitai mesnac Polytron Technologies Inc Address before: 266109 Shandong city of Qingdao province high tech Zone Songyuan Road No. 17 Qingdao Industrial Technology Research Institute A District 4 floor A1 Building Room 403 Patentee before: The Tai Ruan of Qingdao China and Sweden control techniques company limited |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20181214 |