CN102314793A - System and method for simulating LNG (Liquefied Natural Gas) receiving station for oil and gas storage and transportation - Google Patents
System and method for simulating LNG (Liquefied Natural Gas) receiving station for oil and gas storage and transportation Download PDFInfo
- Publication number
- CN102314793A CN102314793A CN201110083849A CN201110083849A CN102314793A CN 102314793 A CN102314793 A CN 102314793A CN 201110083849 A CN201110083849 A CN 201110083849A CN 201110083849 A CN201110083849 A CN 201110083849A CN 102314793 A CN102314793 A CN 102314793A
- Authority
- CN
- China
- Prior art keywords
- lng
- sand table
- receiving station
- pump
- warehousing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a system and method for simulating an LNG (Liquefied Natural Gas) receiving station for oil and gas storage and transportation. The system comprises a sand table (1), a touch screen (2) and a flow plate (3), wherein a plurality of LNG storage and transportation equipment and pipelines for connecting the LNG storage and transportation equipment are arranged on the sand table (1), control valves and LED lamp belts are arranged in the inlet/outlet pipelines of the LNG storage and transportation equipment, a PLC (Programmable Logic Controller) is arranged below the sand table (1) and is respectively connected with the control valves and the LED lamp belts on the sand table (1) as well as a computer (5) inside the touch screen (2), and the computer (5) is connected with the external flow plate (3). In the invention, the process flow of the LNG receiving station is visually, vividly and realistically simulated by adopting the forms of the sand table, cartoons and the like, whether the operation of a student on the sand table is proper or not can be dynamically and interactively shown on the flow plate in real time, so that the student can achieve a feeling of being personally on the scene, thus, the training effect is increased and the training cost is reduced.
Description
Technical field
The present invention relates to oil gas accumulating LNG receiving station's simulation system and method.
Background technology
The oil gas accumulating is connecting inner each link of producing, transporting, selling of petroleum industry; Its requirement to practitioner's knowledge and skills is more and more, adaptive requirement is also more and more strong, and slight error of operating personnel or careless might cause serious quality accident or security incident; For the country and people brings great loss; Therefore oil gas accumulating practitioner's knowledge training on duty and professional skill training just seem very important, but because nearly all oil gas accumulating is on-the-spot and facility all is distributed in the field, can not the training scene of being put into be carried out; If only rely on conventional classroom instruction or laboratory operation; Owing to lack lifelike image, lively supplementary means and mode directly perceived, be absorbed in simple uninteresting difficult situation unavoidably, be difficult to get a desired effect.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art; A kind of oil gas accumulating LNG receiving station's simulation system and method are provided; This system and method adopts forms such as sand table and full three-dimensional animation, simulates the technological process of LNG receiving station intuitively, vividly, realistically, lets the student have sensation on the spot in person; The enhancement training effect reduces training cost.
The objective of the invention is to realize: oil gas accumulating LNG receiving station simulation system through following technical scheme; It comprises sand table, touch-screen and flow process plate; The pipeline that sand table is provided with some LNG warehousing and transportation facilities and connects the LNG warehousing and transportation facilities; Described LNG warehousing and transportation facilities comprises at least one LNG storage tank, compressor A, compressor B, emptying standpipe, condenser, at least one LNG pump, at least one sea water pump, at least one seawater gasifier, at least one combustion vaporizer and LNG ship; Also be provided with pump in the jar in each LNG storage tank, in the import and export pipeline of warehousing and transportation facilities, also be provided with operation valve and LED lamp band, sand table has the PLC controller; The PLC controller respectively with sand table on operation valve and LED lamp band and be connected with the inner computing machine of touch-screen, computing machine is connected with outside flow process plate.
Flow process plate of the present invention is a LCDs.
Oil gas accumulating LNG receiving station analogy method, it may further comprise the steps:
(1) be provided with a sand table that is used to simulate the technological process of LNG receiving station, be used to gather sand table upper pipeline state the PLC controller, be used to the flow process plate controlling the touch-screen of PLC controller and be used to show the technological process of LNG receiving station; The pipeline that sand table is provided with some LNG warehousing and transportation facilities and connects the LNG warehousing and transportation facilities; In the import and export pipeline of each LNG warehousing and transportation facilities, be respectively arranged with the LED lamp band of liquid in operation valve and the simulative tube, PLC controller (4) flows to through acquisition controlling valve state and warehousing and transportation facilities State Control pipeline liquid;
(2) LNG receiving station simulated program of operation on the touch-screen; Operating personnel open or close the one or more operation valves on the sand table according to the requirement of technological process; The variation of the real-time collection tube line state of simulated program, the change dynamics simulation process flow process according to technological requirement and pipeline state also is presented on the flow process plate with the form of animation in real time simultaneously.
Described simulated program comprises flow process demonstration, flow operations step, wherein, described flow process demonstration comprise unload a ship, the LNG gasification outer defeated, the LNG flashed vapour is handled and jar in the circulation substep; Described flow operations comprise equally unload a ship, LNG gasification outer defeated, the LNG flashed vapour is handled and jar in the circulation substep.
The present invention adopts forms such as sand table and animation to simulate the technological process of LNG receiving station intuitively, vividly, realistically; The student the operation of being done on the sand table whether appropriately also can be dynamically, in real time and interactively be illustrated on the flow process plate; Let the student have sensation on the spot in person; Improve result of training, reduced training cost.
Description of drawings
Fig. 1 structural representation of the present invention
The structural representation of Fig. 2 sand table
The operational flowchart that Fig. 3 unloads a ship
The outer defeated operational flowchart of Fig. 4 LNG seawater gasifier gasification
The outer defeated operational flowchart of Fig. 5 LNG combustion vaporizer gasification
The operational flowchart of Fig. 6 LNG flashed vapour output
The operational flowchart of Fig. 7 LNG flashed vapour burning
Round-robin operational flowchart in Fig. 8 jar
Among the figure, 1-sand table, 2-touch-screen, 3-flow process plate, 4-PLC controller, 5-computing machine; The 6-LNG storage tank, 7-compressor A, 8-compressor B, 9-emptying standpipe, 10-condenser, 11-LNG pump; The 12-sea water pump, 13-seawater gasifier, 14-combustion vaporizer, pump in the 15-LNG ship, 16-jar.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is further described:
Like Fig. 1, shown in Figure 2; Oil gas accumulating LNG receiving station simulation system; It comprises sand table 1, touch-screen 2 and flow process plate 3, and flow process plate 3 is a LCDs, the pipeline that sand table 1 is provided with some LNG warehousing and transportation facilities and connects the LNG warehousing and transportation facilities; Described LNG warehousing and transportation facilities comprises two LNG storage tanks 6, compressor A7, compressor B8, emptying standpipe 9, condenser 10, two LNG pumps 11, two sea water pumps 12, two open-shelf seawater gasifiers 13, two submerged combustion gasifiers 14 and LNG ships 15; Also be provided with pump 16 in the jar in each LNG storage tank 6, in the import and export pipeline of warehousing and transportation facilities, be provided with operation valve, sand table 1 has PLC controller 4; PLC controller 4 respectively with sand table 1 on operation valve and touch-screen 2 inner computing machines 5 be connected, computing machine 5 is connected with outside flow process plate 3.
In the LNG warehousing and transportation facilities, LNG ship 15 is used to transport LNG; LNG storage tank 6 is used to store LNG; Compressor A7 is used for being delivered to the LNG cargo ship after the gas compression with the LNG storage tank, with the pressure of balance ship; Compressor B8 is delivered to condenser after the gas in the LNG storage tank is compressed, and is outer defeated after the condensation; LNG pump 11 is used to carry LNG; Sea water pump 12 is transported to the seawater gasifier from marine extracting seawater, is used to heat LNG; 13 effects of seawater gasifier are to carry out heat interchange through LNG and seawater, make the LNG gasification; Combustion vaporizer 14 effects are that combustion fuel gas produces heat, make the LNG gasification.
Oil gas accumulating LNG receiving station analogy method, it may further comprise the steps:
(1) be provided with a sand table 1 that is used to simulate the technological process of LNG receiving station, be used to gather the PLC controller 4 of sand table 1 upper pipeline state, the flow process plate 3 that is used to control the touch-screen 2 of PLC controller 4 and is used to show the technological process of LNG receiving station; The pipeline that sand table 1 is provided with some LNG warehousing and transportation facilities and connects the LNG warehousing and transportation facilities; In the import and export pipeline of each LNG warehousing and transportation facilities, be respectively arranged with the LED lamp band of liquid in operation valve and the simulative tube, PLC controller (4) flows to through acquisition controlling valve state and warehousing and transportation facilities State Control pipeline liquid;
(2) LNG receiving station simulated program of operation on the touch-screen 2; Operating personnel open or close the one or more operation valves on the sand table 1 according to the requirement of technological process; The variation of the real-time collection tube line state of simulated program, the change dynamics simulation process flow process according to technological requirement and pipeline state also is presented on the flow process plate 3 with the form of full three-dimensional animation in real time simultaneously.
Simulated program comprises flow process demonstration, flow operations step.Flow process demonstration comprise unload a ship, the LNG gasification outer defeated, the LNG flashed vapour is handled and jar in the circulation substep; Flow operations comprise unload a ship, LNG gasification outer defeated, the LNG flashed vapour is handled and jar in the circulation substep.
The difference of flow process demonstration and flow operations is that the flow process demonstration can only demonstrate technological process, does not receive foreign intervention in the presentation process, is unidirectional, and flow operations according to the actual conditions displaying technological process of operation, is interactively then.
The operating process of unloading a ship
The operating process of unloading a ship such as Fig. 3; LNG in the LNG ship 15 is through two unloading arms and conveyance conduit; Feed liquor or following feed liquor mode are punched in the used LNG storage tank 6 in the use; Part flashed vapour turns back to the material cabin of LNG ship 15 through compressor A7, and in order to the pressure in the balancing material cabin, its concrete operations flow process is following:
(1) confirms that starting point is a LNG ship 15;
(2) confirm that terminal point is used LNG storage tank 6;
(3) valve, terminal point of opening terminal point into are to the valve of compressor A7 and the valve of origin-to-destination;
(4) activate compressor A7: the pattern of lighting " compressor A7 " on the touch-screen.
The outer defeated operating process of gasification
LNG gasification is outer, and defeated to be divided into the open-shelf gasifier gasification of LNG outer defeated outer defeated with the gasification of LNG submerged combustion gasifier.
The open-shelf seawater gasifier gasification of LNG is outer defeated like Fig. 4; LNG in the LNG storage tank 6 imports to outside the open-shelf seawater gasifier 13 gasification backs defeated through pump 16 and LNG pump 11 in the jar of its inside; And sea water pump 12 heats LNG with the water inlet that seawater is injected into open-shelf seawater gasifier 13, and its concrete operations flow process is following:
(1) confirms that the process starting point is employed LNG storage tank 6;
(2) confirm that terminal point is open-shelf seawater gasifier 13;
(3) open the into valve of terminal point;
(4) open the valve of starting point to LNG pump 11;
(5) open out the valve of terminal point;
(6) activate pump 16 in the corresponding jar: the pattern of lighting corresponding on the touch-screen " pump in jar ";
(7) open sea water pump 12: open the pump inspection, confirm whether the valve of the import and export of sea water pump 12 is closing; Prepare before opening pump, slowly open the valve of the import of sea water pump 12, and confirm to be full of medium in the sea water pump 12; Turn on pump, promptly slowly open the valve of outlet of sea water pump 12 after, activate sea water pump 12 again, promptly light the pattern of corresponding " sea water pump " on the touch-screen;
(8) open LNG pump 11: open the pump inspection, confirm whether the valve of the import and export of LNG pump 11 is closing; Prepare before opening pump, slowly open the valve of the import of LNG pump 11, and confirm to be full of medium in the LNG pump 11; Turn on pump, promptly slowly open the valve of outlet of LNG pump 11 after, activate LNG pump 11 again, promptly light the pattern of corresponding " LNG pump " on the touch-screen.
The gasification of LNG submerged combustion gasifier is outer defeated like Fig. 5; LNG imports to outside the submerged combustion gasifier 14 gasification backs defeated through pump 16 and LNG pump 11 in the jar of its inside in the LNG storage tank 6; And fuel gas gets into the firing chamber of gasifier 14, burning back heating LNG, and its concrete operations flow process is following:
(1) confirms that the process starting point is employed LNG storage tank 6;
(2) confirm that terminal point is a submerged combustion gasifier 14;
(3) open the into valve of terminal point;
(4) open the valve of starting point to LNG pump 11;
(5) open out the valve of terminal point;
(6) activate pump 16 in the corresponding jar: the pattern of lighting " pump in jar " corresponding on the touch-screen;
(7) activate submerged combustion gasifier 14: the pattern of lighting " combustion vaporizer " on the touch-screen;
(8) open LNG pump 11: open the pump inspection, confirm whether the valve of the import and export of LNG pump 11 is closing; Prepare before opening pump, slowly open the valve of the import of LNG pump 11, and confirm to be full of medium in the LNG pump 11; Turn on pump, promptly slowly open the valve of outlet of LNG pump 11 after, activate LNG pump 11 again.
The flashed vapour treatment scheme
The LNG flashed vapour is handled and is comprised output of LNG flashed vapour and the burning of LNG flashed vapour.
The output of LNG flashed vapour is like Fig. 6; Flashed vapour gets into condenser 10 condensations after boosting through compressor B8 in the LNG storage tank 6; The LNG of condensed flashed vapour and 6 outputs of LNG storage tank gets into seawater carburetor 13 through LNG pump 11 together; And the water inlet that seawater is injected into open-shelf seawater gasifier 13 is heated LNG with sea water pump 12, its idiographic flow is following:
(1) confirms that the process starting point is used LNG storage tank 6, and open the valve of LNG storage tank to compressor B8;
(2) confirm that process end is open-shelf seawater gasifier 13, and open the into valve of terminal point;
(3) open the valve of condenser 10 to LNG pump 11;
(4) open the valve of starting point to LNG pump 11;
(5) open out the valve of terminal point;
(6) activate compressor B8: the pattern of lighting " compressor B8 " on the touch-screen;
(7) activate pump 16 in the corresponding jar: the pattern of lighting corresponding on the touch-screen " pump in jar ";
(8) open used sea water pump 12: open the pump inspection, confirm whether the valve of the import and export of sea water pump 12 is closing; Prepare before opening pump, slowly open the valve of the import of sea water pump 12, and confirm to be full of medium in the sea water pump 12; Turn on pump, promptly slowly open the valve of outlet of sea water pump 12 after, activate sea water pump 12 again, promptly light the pattern of corresponding " sea water pump " on the touch-screen;
(9) open used LNG pump 11: open the pump inspection, confirm whether the valve of the import and export of LNG pump 11 is closing; Prepare before opening pump, slowly open the valve of the import of LNG pump 11, and confirm to be full of medium in the LNG pump 11; Turn on pump, promptly slowly open the valve of outlet of LNG pump 11 after, activate LNG pump 11 again, promptly light the pattern of corresponding " LNG pump " on the touch-screen.
The burning of LNG flashed vapour is like Fig. 7, and flashed vapour burns through flare system in the LNG storage tank 6, and its concrete operations flow process is following:
(1) confirm starting point promptly the LNG storage tank 6 that will handle;
(2) open the valve that flashed vapour goes out the starting point outlet;
(3) confirm terminal point emptying standpipe 9;
(4) open the into valve of terminal point;
(5) activate emptying standpipe 9: the pattern of lighting " emptying standpipe " on the touch-screen.
Circulation in jar
Circulate in jar like Fig. 8, pump 16 imports to LNG in this LNG storage tank 6 through following feed liquor mode again in the jar in the startup LNG storage tank 6, and its concrete operations flow process is following:
(1) confirms that starting point is used LNG storage tank 6;
(2) open the valve that pump 16 exports in corresponding jar;
(3) confirm the LNG storage tank 6 that terminal point is promptly corresponding, and open the into valve of terminal point;
(4) open the valve of origin-to-destination;
(5) activate a jar interior pump 16: the pattern of lighting " pump in jar " corresponding on the touch-screen.
Claims (4)
1. oil gas accumulating LNG receiving station simulation system; It is characterized in that: it comprises sand table (1), touch-screen (2) and flow process plate (3); The pipeline that sand table (1) is provided with some LNG warehousing and transportation facilities and connects the LNG warehousing and transportation facilities; Described LNG warehousing and transportation facilities comprises at least one LNG storage tank (6), compressor A (7), compressor B (8), emptying standpipe (9), condenser (10), at least one LNG pump (11), at least one sea water pump (12), at least one seawater gasifier (13), at least one combustion vaporizer (14) and LNG ship (15); Also be provided with pump (16) in the jar in each LNG storage tank (6); In the import and export pipeline of warehousing and transportation facilities, also be provided with operation valve and LED lamp band; Sand table (1) has PLC controller (4), PLC controller (4) respectively with sand table (1) on operation valve and LED lamp band and be connected with the inner computing machine (5) of touch-screen (2), computing machine (5) is connected with outside flow process plate (3).
2. oil gas accumulating LNG according to claim 1 receiving station simulation system, it is characterized in that: described flow process plate (3) is a LCDs.
3. oil gas accumulating LNG receiving station analogy method, it is characterized in that: it may further comprise the steps:
(1) be provided with a sand table (1) that is used to simulate the technological process of LNG receiving station, be used to gather sand table (1) upper pipeline state PLC controller (4), be used to control the touch-screen (2) of PLC controller (4) and be used to show the flow process plate (3) of LNG receiving station technological process; The pipeline that sand table (1) is provided with some LNG warehousing and transportation facilities and connects the LNG warehousing and transportation facilities; In the import and export pipeline of each LNG warehousing and transportation facilities, be respectively arranged with the LED lamp band of liquid in operation valve and the simulative tube, PLC controller (4) flows to through acquisition controlling valve state and warehousing and transportation facilities State Control pipeline liquid;
(2) touch-screen (2) is gone up LNG receiving station simulated program of operation; Operating personnel open or close the one or more operation valves on the sand table (1) according to the requirement of technological process; The variation of the real-time collection tube line state of simulated program, the change dynamics simulation process flow process according to technological requirement and pipeline state also is presented on the flow process plate (3) with the form of animation in real time simultaneously.
4. oil gas accumulating LNG according to claim 3 receiving station analogy method; It is characterized in that: described simulated program comprises flow process demonstration, flow operations step; Wherein, The demonstration of described flow process comprise unload a ship, the LNG gasification outer defeated, the LNG flashed vapour is handled and jar in the circulation substep, described flow operations comprise equally unload a ship, the LNG gasification outer defeated, the LNG flashed vapour is handled and jar in the circulation substep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110083849 CN102314793B (en) | 2011-04-02 | 2011-04-02 | System and method for simulating LNG (Liquefied Natural Gas) receiving station for oil and gas storage and transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110083849 CN102314793B (en) | 2011-04-02 | 2011-04-02 | System and method for simulating LNG (Liquefied Natural Gas) receiving station for oil and gas storage and transportation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102314793A true CN102314793A (en) | 2012-01-11 |
| CN102314793B CN102314793B (en) | 2013-02-13 |
Family
ID=45427921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110083849 Active CN102314793B (en) | 2011-04-02 | 2011-04-02 | System and method for simulating LNG (Liquefied Natural Gas) receiving station for oil and gas storage and transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102314793B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155017A (en) * | 2016-07-15 | 2016-11-23 | 爱普（福建）科技有限公司 | Simulation sand table and the method for production scene Rapid transplant towards industrial control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201035816Y (en) * | 2007-06-01 | 2008-03-12 | 成都趋势电子有限责任公司 | Numerical control information sand table |
| CN101192353A (en) * | 2006-11-23 | 2008-06-04 | 辽宁石油化工大学 | Pipeline oil transportation simulator |
| CN201965835U (en) * | 2011-04-02 | 2011-09-07 | 成都盛特石油装备模拟技术开发有限公司 | Simulation system of oil-gas storage and transportation LNG (Liquefied Natural Gas) receiving station |
-
2011
- 2011-04-02 CN CN 201110083849 patent/CN102314793B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192353A (en) * | 2006-11-23 | 2008-06-04 | 辽宁石油化工大学 | Pipeline oil transportation simulator |
| CN201035816Y (en) * | 2007-06-01 | 2008-03-12 | 成都趋势电子有限责任公司 | Numerical control information sand table |
| CN201965835U (en) * | 2011-04-02 | 2011-09-07 | 成都盛特石油装备模拟技术开发有限公司 | Simulation system of oil-gas storage and transportation LNG (Liquefied Natural Gas) receiving station |
Non-Patent Citations (1)
| Title |
|---|
| 于达等: "输油管道仿真教学系统开发研究", 《实验室研究与探索》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155017A (en) * | 2016-07-15 | 2016-11-23 | 爱普（福建）科技有限公司 | Simulation sand table and the method for production scene Rapid transplant towards industrial control system |
| CN106155017B (en) * | 2016-07-15 | 2018-09-28 | 爱普（福建）科技有限公司 | The method of simulation sand table and production scene Rapid transplant towards industrial control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102314793B (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201965835U (en) | Simulation system of oil-gas storage and transportation LNG (Liquefied Natural Gas) receiving station | |
| CN102313134B (en) | Oil and gas storage and transportation process flow simulating system and method | |
| CN102314784B (en) | System and method for simulating natural gas pressurization and distribution for oil and gas storage and transportation | |
| CN202056520U (en) | Oil and gas storage and transportation process flow simulation system | |
| CN102314793B (en) | System and method for simulating LNG (Liquefied Natural Gas) receiving station for oil and gas storage and transportation | |
| CN202791324U (en) | Equipment for achieving whole skid mounting of processing equipment of gas station | |
| CN106932215B (en) | Experimental device for simulating closed conveying of long-distance liquid conveying pipeline | |
| CN108679438A (en) | A kind of liquefied natural gas gas-liquid shared system | |
| CN205992370U (en) | A kind of boiler plant with Multifunction fluviograph | |
| CN102314783B (en) | System and method for simulating oil depot for oil and gas storage and transportation | |
| CN101368735A (en) | Atmospheric liquid fuel gasification structure | |
| CN202017885U (en) | Crude oil long-distance transportation simulation system for oil and gas storage and transportation | |
| CN201965788U (en) | Simulation system for oil-gas storing and transporting depot | |
| CN215068708U (en) | Marine oil separator real object simulation system | |
| CN102298870B (en) | System used for skill training and assessment of PLC control technology | |
| CN102314794B (en) | System and method for simulating multi-purpose station for oil and gas storage and transportation | |
| CN201965842U (en) | Oil and gas storage and transportation combination station simulation system | |
| CN102313135B (en) | Oil and gas storage and transportation crude oil long-transportation simulating system and method | |
| CN104616555A (en) | Oil-gas separation analogue simulation system | |
| CN204005207U (en) | A kind of liquefied natural gas filling measuring apparatus | |
| CN114220333A (en) | Full-pressure tank liquid storage leakage simulation method and system | |
| CN203494410U (en) | Automatic flow-adjusted gas mixer | |
| CN204025017U (en) | A kind of high-pressure water pump Testing Platform | |
| CN207503078U (en) | A kind of High Precision Automatic networked control systems of teaching integral type | |
| CN206451387U (en) | A kind of LNG receiving stations Simulation system of lunar rover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610061 Xiaojiahe high tech Zone, Chengdu, No. 46 street, Sichuan Patentee after: Chengdu petroleum equipment simulation technology Limited by Share Ltd Address before: 610061 Xiaojiahe high tech Zone, Chengdu, No. 46 street, Sichuan Patentee before: Chengdu Esimtech Petroleum Equipment Simulation Technology Exploitation Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |