CN104266502A - Fire flooding oil well tail gas condensation liquid trap - Google Patents
Fire flooding oil well tail gas condensation liquid trap Download PDFInfo
- Publication number
- CN104266502A CN104266502A CN201410564005.7A CN201410564005A CN104266502A CN 104266502 A CN104266502 A CN 104266502A CN 201410564005 A CN201410564005 A CN 201410564005A CN 104266502 A CN104266502 A CN 104266502A
- Authority
- CN
- China
- Prior art keywords
- oil well
- tail gas
- pipeline section
- liquid
- condensation
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 85
- 230000005494 condensation Effects 0.000 title claims abstract description 61
- 238000009833 condensation Methods 0.000 title claims abstract description 61
- 239000003129 oil well Substances 0.000 title claims abstract description 46
- 238000000926 separation method Methods 0.000 claims abstract description 55
- 230000003139 buffering effect Effects 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 30
- 239000003921 oil Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Abstract
The invention provides a fire flooding oil well tail gas condensation liquid trap which comprises a buffer separation pipe section with at least a part of the section inclined, a condensation separation pipe section and a liquid collection pipe. An air inlet is arranged in one end of the buffer separation pipe section for communicating a fire flooding oil well sleeve, the other end of the buffer separation pipe section is communicated with the condensation separation pipe section, the free end of the condensation separation pipe section is connected with an air outlet, and the bottom of the condensation separation pipe section is communicated with the liquid collection pipe. According to the fire flooding oil well tail gas condensation liquid trap, by means of the buffer separation pipe section with at least a part of the section inclined, tail gas output from the fire flooding oil well sleeve first enters the inclined buffer separation pipe section from the bottom end, water vapor and a part of light oil are condensed preliminarily in the tail gas rising process, preliminary large liquid drop catching and separation is achieved, tail gas subjected to the preliminary large liquid drop catching enters the condensation separation pipe section, the water vapor and a part of the light oil are condensed on the pipe wall of the condensation separation pipe section, and the gas liquid separation effect is good.
Description
Technical field
The invention belongs to oil well exhaust collection technical field, particularly relate to a kind of fireflood oil well tail gas condensing liquid trap.
Background technology
Containing the composition such as hydrogen sulfide and water vapour in fireflood production well sleeve pipe tail gas, production must be reclaimed individual well sleeve pipe tail gas, then adopts desulfurizer to carry out desulfurization process.At present, the metering in oil field is carried down to stand and is adopted larger-size condensation liquid trap to carry out gas-liquid separation and liquid collecting to the natural gas that station surge tank of carrying down is separated, need to ensure enough large condenser heat exchange area, and the temperature difference enough between inside and outside cold fluid and hot fluid in condenser under natural conditions, realize gas-liquid and obtain quick separating, this condensation vessel volume is large, floor space is large, can only be arranged on measuring station, oil well individual well cannot be installed and used, tail gas for fireflood well cannot condensation liquid collecting, and liquid cannot be back to oil well casing.
Summary of the invention
A kind of fireflood oil well tail gas condensing liquid trap, comprise buffering separation pipeline section, condensation separation pipeline section and liquid collecting collecting pipe that at least part of segment tilts, one end that described buffering is separated pipeline section is air intake, for being communicated with fireflood oil well casing, other one end that described buffering is separated pipeline section is communicated with described condensation separation pipeline section, the free end of described condensation separation pipeline section is connected with gas outlet, be communicated with described liquid collecting collecting pipe bottom described condensation separation pipeline section, the pressure between described condensation separation pipeline section and liquid collecting collecting pipe is 0.02 ~ 0.15 MPa.
Further, the liquid outlet of described liquid collecting collecting pipe is connected with fireflood oil well casing by bend pipe, the bend at least comprising a upwards bending of described bend pipe, and the height of described bend diapire is not higher than the height of the shutoff liquid level of described liquid collecting collecting pipe.
Preferably, described bend pipe is S shape bend pipe.
Further again, described condensation separation pipeline section comprises the some row's condenser pipes be connected, enter fireflood oil well tail gas in condensation separation pipeline section in turn at described some row's condensation Bottomhole pressure, and each row's condenser pipe moderate heat displacement of reservoir oil well tail gas all flows according to zigzag in the horizontal direction and in the vertical direction.
Further, described buffering is separated pipeline section and comprises the tilting section and horizontally disposed horizontal segment that are obliquely installed, the bottom of described tilting section is connected with fireflood oil well casing, and top is communicated with wherein one end of described horizontal segment, and other one end of described horizontal segment is communicated with described condensation separation pipeline section.
Further, the inner tubal wall of described tilting section is rough non-smooth structure inner tubal wall.
Further, described liquid collecting collecting pipe comprises the horizontally disposed house steward of confluxing and the vertically disposed tube connector for conflux described in being communicated with house steward and condensation separation pipeline section.
Further, described tube connector is provided with at least one observation window of liquid level.
Fireflood oil well tail gas condensing liquid trap of the present invention, the buffering tilted by arranging at least part of segment is separated pipeline section, first the buffering entering inclination from the tail gas of fireflood oil well casing output from bottom is separated pipeline section, tail gas water vapour and part light oil in uphill process tentatively condense, carry out preliminary large drop to flutter and catch separation, then tail gas after preliminary large drop catches enter condensation separation pipeline section, water vapour and part light oil condense on the tube wall of condensation separation pipeline section, pressure between described condensation separation pipeline section and liquid collecting collecting pipe is not more than 0.15 MPa, after condensation accumulates large drop, drop flows in liquid collecting collecting pipe under self gravitation.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred embodiment, and does not think limitation of the present invention.In the accompanying drawings:
A kind of example structure schematic diagram of the fireflood oil well tail gas condensing liquid trap that Fig. 1 the present invention proposes;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the right view of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing and concrete embodiment, the invention will be further described.
Embodiment one, the present embodiment proposes a kind of fireflood oil well tail gas condensing liquid trap, as shown in Figure 1-Figure 3, wherein, Fig. 1 is the front view of a kind of fireflood oil well of the present embodiment tail gas condensing liquid trap, Fig. 2 is the top view of Fig. 1, Fig. 3 is the right view of Fig. 1, comprise buffering and be separated pipeline section 10, condensation separation pipeline section 20, and liquid collecting collecting pipe 30, one end that described buffering is separated pipeline section 10 is air intake, for being communicated with fireflood oil well casing 40, other one end that described buffering is separated pipeline section 10 is communicated with described condensation separation pipeline section 20, the free end of described condensation separation pipeline section 20 is connected with gas outlet 21, be communicated with described liquid collecting collecting pipe 30 bottom described condensation separation pipeline section 20, pressure between described condensation separation pipeline section 20 and liquid collecting collecting pipe 30 is not more than 0.15 MPa.The fireflood oil well tail gas condensing liquid trap of the present embodiment, the buffering tilted by arranging at least part of segment is separated pipeline section 10, first the buffering entering inclination from the tail gas of fireflood oil well casing 40 output from bottom is separated pipeline section 10, tail gas water vapour and part light oil in uphill process tentatively condense, carry out preliminary large drop to flutter and catch separation, then tail gas after preliminary large drop catches enter condensation separation pipeline section 20, water vapour and part light oil condense on the tube wall of condensation separation pipeline section 20, pressure between described condensation separation pipeline section 20 and liquid collecting collecting pipe 30 is 0.02 ~ 0.15 MPa, after condensation accumulates large drop, drop flows in liquid collecting collecting pipe 30 under self gravitation, this fireflood oil well tail gas condensing liquid trap can realize gas-liquid quick separating, quick separating goes out water vapour and light crude oil composition in tail gas, prevent from reducing desulfurized effect.Experimentally known, when fireflood oil well casing 40 and condensation separation pipeline section 20 inlet-pressure mechanical resistance are not more than 0.15MPa, drop only can along entering in liquid collecting collecting pipe 30 by self gravitation, without the need to arranging other power recovery mechanisms, economize energy.
As a preferred embodiment, the liquid outlet of described liquid collecting collecting pipe 30 is connected with fireflood oil well casing 40 by bend pipe 31, the bend 311 at least comprising a upwards bending of described bend pipe 31, and the height of described bend 311 diapire 311a is not higher than the height of the shutoff liquid level of described liquid collecting collecting pipe 30.When the liquid imported in liquid collecting collecting pipe 30 gets more and more, when being pooled to the shutoff liquid level exceeding liquid collecting collecting pipe 30, also just in time exceed shutoff bend 311 diapire 311a, liquid is flowed in backflash by bend pipe.By arranging bend 311, not only first can collect condensed liquid component by liquid collecting pipe 30, and utilize siphon principle, can by the liquid automatic back flow in liquid collecting pipe 30 in fireflood casing 40, without the need to arranging retracting device specially in addition, save equipment cost.Conveniently industrial production manufacture, preferably, described bend pipe 31 is S shape bend pipe.
Described condensation separation pipeline section 20 comprises the some row's condenser pipes be connected, enter fireflood oil well tail gas in condensation separation pipeline section in turn at described some row's condensation Bottomhole pressure, and each row's condenser pipe moderate heat displacement of reservoir oil well tail gas all flows according to zigzag in the horizontal direction and in the vertical direction.As shown in Figure 2, for the top view of Fig. 1, to comprise two row's condenser pipes in the present embodiment, be respectively front-seat condenser pipe 20a and rear row's condenser pipe 2b, the fireflood oil well tail gas entered in condensation separation pipeline section 20 flows through front-seat condenser pipe 20a and rear row's condenser pipe 20b successively, and each row's condenser pipe moderate heat displacement of reservoir oil well tail gas all flows according to zigzag in the horizontal direction and in the vertical direction, ensure enough condensation heat collector heat exchange areas, contribute to rapid condensation and go out water vapour in tail gas and light crude oil composition, in addition, front-seat condenser pipe 20a and rear row's condenser pipe 2b can arrange again many rows respectively, can need to arrange according to actual condensation.
Described buffering is separated pipeline section 10 and comprises the tilting section 101 and horizontally disposed horizontal segment 102 that are obliquely installed, the bottom of described tilting section 101 is connected with fireflood oil well casing 40, top is communicated with wherein one end of described horizontal segment 102, and other one end of described horizontal segment 102 is communicated with described condensation separation pipeline section 20.
The inner tubal wall of described tilting section 101 is rough non-smooth structure inner tubal wall.As shown in Figure 1, along the inner tubal wall described in airflow direction, there is lug boss and depressed part, gas is when tilting section flows, fully contact with inner tubal wall, the seizure can carrying out preliminary large drop is separated the condensing pressure alleviated in subsequent condensation step, makes whole water vapour and the condensation of part light oil catch more abundant.
Described liquid collecting collecting pipe 30 comprises the horizontally disposed house steward of confluxing 301 and the vertically disposed tube connector 302 for conflux described in being communicated with house steward 301 and condensation separation pipeline section 20.Isolated for condensation separation pipeline section 20 liquid can converge by house steward 301 of confluxing, and is convenient to collect.From in Fig. 1, namely the shutoff liquid level of liquid collecting collecting pipe 30 also confluxes the height of roof of house steward 301, when the roof of liquid higher than house steward 301 of confluxing, is flowed out by bend pipe 31.
When liquid cannot be back to fireflood oil well casing 40 by bend pipe 31, the liquid level of house steward 301 of confluxing is increased to tube connector 302, when liquid level has certain altitude in tube connector, the gas distribution channel of condensation separation pipeline section 20 can be blocked, cannot normally condensation, and the air pressure that can increase in condensation liquid trap, there is certain potential safety hazard, conveniently observe the inner liquid collecting situation of liquid collecting collecting pipe 30, described tube connector 302 is provided with at least one observation window of liquid level 303, once occur liquid level rising condition, certain Prevention method can be taked, ensure liquid trap security of operation.
Claims (8)
1. a fireflood oil well tail gas condensing liquid trap, it is characterized in that, comprise the buffering separation pipeline section that at least part of segment tilts, condensation separation pipeline section, and liquid collecting collecting pipe, one end that described buffering is separated pipeline section is air intake, for being communicated with fireflood oil well casing, other one end that described buffering is separated pipeline section is communicated with described condensation separation pipeline section, the free end of described condensation separation pipeline section is connected with gas outlet, be communicated with described liquid collecting collecting pipe bottom described condensation separation pipeline section, pressure between described condensation separation pipeline section and liquid collecting collecting pipe is 0.02 ~ 0.15 MPa.
2. fireflood oil well tail gas condensing liquid trap according to claim 1, it is characterized in that, the liquid outlet of described liquid collecting collecting pipe is connected with fireflood oil well casing by bend pipe, the bend at least comprising a upwards bending of described bend pipe, and the height of described bend diapire is not higher than the height of the shutoff liquid level of described liquid collecting collecting pipe.
3. want the fireflood oil well tail gas condensing liquid trap described in 2 according to right, it is characterized in that, described bend pipe is S shape bend pipe.
4. fireflood oil well tail gas condensing liquid trap according to claim 3, it is characterized in that, described condensation separation pipeline section comprises the some row's condenser pipes be connected, enter fireflood oil well tail gas in condensation separation pipeline section in turn at described some row's condensation Bottomhole pressure, and each row's condenser pipe moderate heat displacement of reservoir oil well tail gas all flows according to zigzag in the horizontal direction and in the vertical direction.
5. the fireflood oil well tail gas condensing liquid trap according to any one of claim 1-4, it is characterized in that, described buffering is separated pipeline section and comprises the tilting section and horizontally disposed horizontal segment that are obliquely installed, the bottom of described tilting section is connected with fireflood oil well casing, top is communicated with wherein one end of described horizontal segment, and other one end of described horizontal segment is communicated with described condensation separation pipeline section.
6. fireflood oil well tail gas condensing liquid trap according to claim 5, is characterized in that, the inner tubal wall of described tilting section is non-smooth structure inner tubal wall.
7. fireflood oil well tail gas condensing liquid trap according to claim 6, is characterized in that, described liquid collecting collecting pipe comprises the horizontally disposed house steward of confluxing and the vertically disposed tube connector for conflux described in being communicated with house steward and condensation separation pipeline section.
8., according to the fireflood oil well tail gas condensing liquid trap required in group described in 7, it is characterized in that, described tube connector is provided with at least one observation window of liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410564005.7A CN104266502B (en) | 2014-10-22 | 2014-10-22 | A kind of fireflood oil well tail gas condensing liquid trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410564005.7A CN104266502B (en) | 2014-10-22 | 2014-10-22 | A kind of fireflood oil well tail gas condensing liquid trap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104266502A true CN104266502A (en) | 2015-01-07 |
| CN104266502B CN104266502B (en) | 2016-03-09 |
Family
ID=52158044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410564005.7A Active CN104266502B (en) | 2014-10-22 | 2014-10-22 | A kind of fireflood oil well tail gas condensing liquid trap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104266502B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759183A (en) * | 2015-03-10 | 2015-07-08 | 中国石油天然气股份有限公司 | A device for reducing humidity of underground combustion tail gas |
| CN107421691A (en) * | 2017-08-28 | 2017-12-01 | 西北工业大学 | A kind of fuel tank low temperature airtightness reliability test system and method |
| CN111965265A (en) * | 2019-05-20 | 2020-11-20 | 中国石油化工股份有限公司 | Gas-liquid separation device and method, crude oil extraction system and crude oil detection system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259468A (en) * | 1994-03-17 | 1995-10-09 | Akita Gijutsu Kenkyusho:Kk | Quick condenser of steam emerged from geothermal water |
| FR2907539A1 (en) * | 2006-10-24 | 2008-04-25 | Dietrich Thermique Sa De | Exchanger-condenser for e.g. domestic condensing boiler operating with fuel oil, has exchangers arranged in series in circuit to be successively traversed by cooling liquid, and disposed in parallel and simultaneously traversed by water |
| CN204202426U (en) * | 2014-10-22 | 2015-03-11 | 辽宁瑞邦石油技术发展有限公司 | A kind of fireflood oil well tail gas condensing liquid trap |
-
2014
- 2014-10-22 CN CN201410564005.7A patent/CN104266502B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259468A (en) * | 1994-03-17 | 1995-10-09 | Akita Gijutsu Kenkyusho:Kk | Quick condenser of steam emerged from geothermal water |
| FR2907539A1 (en) * | 2006-10-24 | 2008-04-25 | Dietrich Thermique Sa De | Exchanger-condenser for e.g. domestic condensing boiler operating with fuel oil, has exchangers arranged in series in circuit to be successively traversed by cooling liquid, and disposed in parallel and simultaneously traversed by water |
| CN204202426U (en) * | 2014-10-22 | 2015-03-11 | 辽宁瑞邦石油技术发展有限公司 | A kind of fireflood oil well tail gas condensing liquid trap |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759183A (en) * | 2015-03-10 | 2015-07-08 | 中国石油天然气股份有限公司 | A device for reducing humidity of underground combustion tail gas |
| CN104759183B (en) * | 2015-03-10 | 2018-05-04 | 中国石油天然气股份有限公司 | One kind reduces fireflood tail gas psychrometric means |
| CN107421691A (en) * | 2017-08-28 | 2017-12-01 | 西北工业大学 | A kind of fuel tank low temperature airtightness reliability test system and method |
| CN107421691B (en) * | 2017-08-28 | 2020-07-07 | 西北工业大学 | Oil tank low-temperature air tightness reliability test system and method |
| CN111965265A (en) * | 2019-05-20 | 2020-11-20 | 中国石油化工股份有限公司 | Gas-liquid separation device and method, crude oil extraction system and crude oil detection system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104266502B (en) | 2016-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104266502B (en) | A kind of fireflood oil well tail gas condensing liquid trap | |
| CN204865262U (en) | Gas stove catch water | |
| CN204202426U (en) | A kind of fireflood oil well tail gas condensing liquid trap | |
| CN104214512A (en) | Natural-gas-collecting integrating device | |
| CN109269164B (en) | Gas-liquid separator | |
| CN203990263U (en) | A kind of oil depot embrane method device for recovering oil and gas | |
| CN204040178U (en) | A kind of pond of separating cryogenic liquid and rainwater | |
| CN209302385U (en) | Circulating hydrogen compressor unit device for recovering oil and gas | |
| CN206244958U (en) | A kind of air-cooled reflux of steam natural | |
| CN106351611B (en) | Gas well open flow automates energy-saving combustion apparatus | |
| CN109424352A (en) | A kind of crude separating device | |
| CN203704293U (en) | Drainage structure of dehumidifier, and dehumidifier | |
| CN207131447U (en) | A kind of coal mine underground water drainage device | |
| CN204079937U (en) | One ESSENTIAL OIL extraction equipment | |
| DE102014005377A1 (en) | Plant for the transmission of waste heat without pressure loss | |
| CN111318088A (en) | Associated gas condensate separating and collecting device and method | |
| CN108659892B (en) | Coke oven gas blast condensation area tank waste gas recovery system and recovery method | |
| CN203309504U (en) | Air-separation steam trap device | |
| CN202881133U (en) | Device for direct supplying methyl chloride to chlorination reaction | |
| CN206721150U (en) | Methane gas-water separation automatic water drainer | |
| CN105509515A (en) | Novel air bath type vaporizer | |
| CN219390589U (en) | Condensate recovery device | |
| CN205084460U (en) | Bump and spatter formula oil and gas separator | |
| CN214791209U (en) | Safe and reliable oil seal device | |
| CN211847850U (en) | Grease rectification system for extracting vitamin E and recovering neutral oil |
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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Fire flooding oil well tail gas condensation liquid trap Effective date of registration: 20170807 Granted publication date: 20160309 Pledgee: Panjin xintailong financing Company limited by guarantee Pledgor: LIAONING RUIBANG PETROLEUM TECHNOLOGY DEVELOPMENT CO., LTD. Registration number: 2017990000715 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181229 Granted publication date: 20160309 Pledgee: Panjin xintailong financing Company limited by guarantee Pledgor: LIAONING RUIBANG PETROLEUM TECHNOLOGY DEVELOPMENT CO., LTD. Registration number: 2017990000715 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Fire flooding oil well tail gas condensation liquid trap Effective date of registration: 20200615 Granted publication date: 20160309 Pledgee: Panjin xintailong financing Company limited by guarantee Pledgor: LIAONING RUIBANG PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2020210000029 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210622 Granted publication date: 20160309 Pledgee: Panjin xintailong financing Company limited by guarantee Pledgor: LIAONING RUIBANG PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2020210000029 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A cold agglutinator for tail gas of fire drive oil well Effective date of registration: 20210623 Granted publication date: 20160309 Pledgee: Panjin xintailong financing Company limited by guarantee Pledgor: LIAONING RUIBANG PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2021210000037 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220609 Granted publication date: 20160309 Pledgee: Panjin xintailong financing Company limited by guarantee Pledgor: LIAONING RUIBANG PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2021210000037 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |