CN201264993Y - Whole set devices for removing sulfurated hydrogen in crude oil - Google Patents
Whole set devices for removing sulfurated hydrogen in crude oil Download PDFInfo
- Publication number
- CN201264993Y CN201264993Y CNU2008203022055U CN200820302205U CN201264993Y CN 201264993 Y CN201264993 Y CN 201264993Y CN U2008203022055 U CNU2008203022055 U CN U2008203022055U CN 200820302205 U CN200820302205 U CN 200820302205U CN 201264993 Y CN201264993 Y CN 201264993Y
- Authority
- CN
- China
- Prior art keywords
- spray
- braided construction
- crude oil
- metering pump
- hydrogen sulfide
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to a device for removing sulfuretted hydrogen in crude oil, in particular to complete equipment for removing sulfuretted hydrogen in crude oil. The device comprises a sulfur elimination container and a metering pump control system; an outlet three-way valve is fixedly installed on the sulfur elimination container; the outlet three-way valve is connected with a low-pressure braided construction hose into a whole body; the low-pressure braided construction hose is communicated with a plunger type metering pump through a second low-pressure quick connector and an inlet valve; the plunger type metering pump is communicated with a high-pressure braided construction hose through a high-pressure quick connector and an outlet valve; the high-pressure braided construction hose is communicated with the sulfur elimination inlet of a non-clogging mixer through a high-pressure quick connector; the non-clogging mixer is communicated with a solid processor through an oil pipe; and solid finishing agent is installed in the solid processor. The device has the advantages that the structure is reasonable and compact, the operation is convenient, because the sulfureted hydrogen produced in oil gas wells can be effectively removed, not only the potential safety hazard during the production can be greatly reduced, the danger of the hydrogen sulphide poisoning of operating personnel can be reduced, but also the discharge reaches the standard, and the environment is protected.
Description
One, technical field
The utility model relates to the device that hydrogen sulfide in the crude oil is eliminated, and is that hydrogen sulfide is eliminated complexes in a kind of crude oil.
Two, background technology
In the oil gas well, all contain certain density hydrogen sulfide, hydrogen sulfide is a kind of toxic and harmful, and hydrogen sulfide is fast through mucosal absorption, and skin absorption is very slow.The people sucks 70 to 150 milligrams of/meter hydrogen sulfide and occurred respiratory tract and eye irritation in 1 to 2 minute, and olfactory fatigue can't smell stink after 2 to 5 minutes.After sucking 760 milligrams/cubic metre to 1000 milligrams/cubic metre several seconds acute poisoning appears very soon, respiratory paralysis behind the accelerated breathing and death.Hydrogen sulfide not only pollutes air ambient, and is also very serious to the oil field equipment corrosion, and pressurized vessel is become fragile, and the material plasticity that causes descends, ftractures or damage produces blast, is a big potential safety hazard in the hydrogen sulfide field produces.For test, gas testing, the production testing operation that adapts to the sulfide hydrogen gas well, uphole equipment and underground equipment all will adopt the material of anti-sulphur, better anti-its rigidity of sulfur materials and the relatively poor production cost of tensile strength are very high again, therefore High Temperature High Pressure high-hydrogen sulfide gas is carried out the production testing operation well exists serious potential safety hazard, and, also environment has been caused very big pollution to the danger that also there is hydrogen sulfide poisoning in operator.
Three, summary of the invention
The utility model provides hydrogen sulfide elimination complexes in a kind of crude oil, has overcome the deficiency of above-mentioned prior art, and it can effectively remove the hydrogen sulfide in the oil gas well fluids.
The technical solution of the utility model realizes by following measure: hydrogen sulfide is eliminated complexes in a kind of crude oil, comprise sulfur elimination flow container and volume pump Controlling System, on the sulfur elimination flow container, be installed with the outlet threeway, outlet threeway and low pressure braided construction hose link together, the low pressure braided construction hose is connected with plunger type metering pump by the second low pressure rapid-acting coupling and inlet valve, plunger type metering pump is connected with the high pressure braided construction hose by high-voltage quick joint and outlet valve, the high pressure braided construction hose is connected with the sulfur elimination liquid import of not having the obstruction mixing tank by high-voltage quick joint, not having the mixing tank of obstruction is connected with the solids treatment device by oil pipe, in the solids treatment device solid processing agent is housed, the solids treatment device communicates with storage tank by advancing jar skirt;
The outlet threeway links together with spray low pressure braided construction hose, spray low pressure braided construction hose is connected with diaphragm metering pump by the first low pressure rapid-acting coupling and inlet valve, diaphragm metering pump is connected with spray high pressure braided construction hose by spray high-voltage quick joint and outlet valve, and spray high pressure braided construction hose is connected with annular spray atomizer by the spray high-voltage quick joint;
The volume pump Controlling System comprises the motor of H, low-pass filter amplifier, low-pass filter signal line, AD converter, AD signal wire, computer, signal wire, frequency transformer, first three-phase wire, the 3rd three-phase wire, diaphragm metering pump and the motor of plunger type metering pump, and the motor of H, low-pass filter amplifier, low-pass filter signal line, AD converter, AD signal wire, computer, signal wire, frequency transformer, first three-phase wire, plunger type metering pump links together in regular turn; The motor of frequency transformer, the 3rd three-phase wire, diaphragm metering pump links together in regular turn.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned frequency transformer, second three-phase wire, switch box can link together in regular turn.
Above-mentioned nothing is stopped up mixing tank and can be connected with the oil pipe gate by pipe fitting joint, and the oil pipe gate can be connected with production tree fluid pipeline or other system's fluid pipeline.
Above-mentioned strainer and the outlet of sulfur elimination flow container can link together by flange, and strainer and outlet threeway are by being threaded togather.
Above-mentioned outlet threeway can link together by screw thread and low pressure braided construction hose, and the outlet threeway links together by screw thread and spray low pressure braided construction hose.
Above-mentioned annular spray atomizer comprises first ring sparger and second ring sparger; First ring sparger, the first spray thrower inlet union, first pipe connecting, Y-junction and spray high-voltage quick joint link together in regular turn; Second ring sparger, the second spray thrower inlet union, two pass joints, second pipe connecting, Y-junction and spray high-voltage quick joint link together in regular turn.
The utility model reasonable and compact in structure, easy to use, owing to can effectively remove output hydrogen sulfide in the oil gas well; therefore not only greatly reduce production safety hidden danger; reduced the danger of operator's hydrogen sulfide poisonings, can also qualified discharge, thus protected environment.
Four, description of drawings
Accompanying drawing 1 is the process flow diagram of the utility model most preferred embodiment.
Accompanying drawing 2 is the main TV structure synoptic diagram of the utility model most preferred embodiment.
Accompanying drawing 3 is the main TV structure synoptic diagram of annular spray atomizer in the utility model most preferred embodiment.
Accompanying drawing 4 is the main TV structure synoptic diagram of sulfur elimination flow container outlet threeway in the utility model most preferred embodiment.
Coding among the figure is respectively: 1 is plunger type metering pump, 2 is diaphragm metering pump, 3 is high-voltage quick joint and outlet valve, 4 is the high pressure braided construction hose, 5 is high-voltage quick joint, and 6 is the oil pipe gate, and 7 for there not being the mixing tank of obstruction, 8 is the solids treatment device, 9 for advancing a jar skirt, and 10 is storage tank, and 11 is first low pressure rapid-acting coupling and the inlet valve, 12 is second low pressure rapid-acting coupling and the inlet valve, 13 are spray high-voltage quick joint and outlet valve, and 14 are spray high pressure braided construction hose, and 15 are the spray high-voltage quick joint, 16 is annular spray atomizer, 17 is H, and 18 is low-pass filter amplifier, and 19 is AD converter, 20 is computer, 21 is frequency transformer, and 22 is the sulfur elimination flow container, and 23 is switch box, 24 is the low-pass filter signal line, 25 is the AD signal wire, and 26 is signal wire, and 27 is first three-phase wire, 28 is the 3rd three-phase wire, 29 is the first spray thrower inlet union, and 30 is second three-phase wire, and 31 is oil pipe, 32 are the outlet threeway, 33 is the low pressure braided construction hose, and 34 are spray low pressure braided construction hose, and 35 is the import of sulfur elimination liquid, 36 is strainer, 37 is Y-junction, and 38 is two pass joints, and 39 is first ring sparger, 40 is second ring sparger, 41 is first pipe connecting, and 42 is the second spray thrower inlet union, and 43 is second pipe connecting, 44 is flange, and 45 is casing.
Five, embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and practical situation.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As accompanying drawing 1, shown in 2, hydrogen sulfide elimination complexes comprise sulfur elimination flow container 22 and volume pump Controlling System in this crude oil, on sulfur elimination flow container 22, be installed with outlet threeway 32, outlet threeway 32 links together with low pressure braided construction hose 33, low pressure braided construction hose 33 is connected with plunger type metering pump 1 by the second low pressure rapid-acting coupling and inlet valve 12, plunger type metering pump 1 is connected with high pressure braided construction hose 4 by high-voltage quick joint and outlet valve 3, high pressure braided construction hose 4 is connected with the sulfur elimination liquid import 35 of not having obstruction mixing tank 7 by high-voltage quick joint 5, not having the mixing tank 7 of obstruction is connected with solids treatment device 8 by oil pipe 31, in solids treatment device 8 solid processing agent is housed, solids treatment device 8 communicates with storage tank 10 by advancing jar skirt 9;
Outlet threeway 32 links together with spray low pressure braided construction hose 34, spray low pressure braided construction hose 34 is connected with diaphragm metering pump 2 by the first low pressure rapid-acting coupling and inlet valve 11, diaphragm metering pump 2 is connected with spray high pressure braided construction hose 14 by spray high-voltage quick joint and outlet valve 13, and spray high pressure braided construction hose 14 is connected with annular spray atomizer 16 by spraying high-voltage quick joint 15;
The volume pump Controlling System comprises H 17, low-pass filter amplifier 18, low-pass filter signal line 24, AD converter 19, AD signal wire 25, computer 20, signal wire 26, frequency transformer 21, first three-phase wire 27, the 3rd three-phase wire 28, the motor of the motor of diaphragm metering pump 2 and plunger type metering pump 1, H 17, low-pass filter amplifier 18, low-pass filter signal line 24, AD converter 19, AD signal wire 25, computer 20, signal wire 26, frequency transformer 21, first three-phase wire 27, the motor of plunger type metering pump 1 links together in regular turn; The motor of frequency transformer 21, the 3rd three-phase wire 28, diaphragm metering pump 2 links together in regular turn;
Like this, when storage tank outlet H monitoring concentration of hydrogen sulfide changes, low-pass filter amplifier 18 passes to AD converter 19 to signal, transmit computer 20 through AD converter 19 data processed, by after the processing of computer 20 control data being delivered to frequency transformer 21, the variation of frequency transformer 21 control triple-phase line electric currents changes motor speed, thereby make plunger type metering pump 1 and diaphragm metering pump 2 liquid supply rate respective change, every cubic metre of the hydrogen sulfide content that makes gas in the storage tank 10 is less than 10 milligrams.
Can according to actual needs above-mentioned high-pressure desander complexes be made further optimization and/or improvements:
As shown in Figure 2, frequency transformer 21, second three-phase wire 30, switch box 23 link together in regular turn.
As shown in Figure 2, do not have the mixing tank 7 of obstruction and be connected with oil pipe gate 6, and oil pipe gate 6 can be connected with production tree fluid pipeline or other system's fluid pipeline by pipe fitting joint.
Shown in accompanying drawing 2,4, strainer 36 links together by flange 44 with 22 outlets of sulfur elimination flow container, and strainer 36 and outlet threeway 32 are by being threaded togather.
As shown in Figure 2, outlet threeway 32 links together by screw thread and low pressure braided construction hose 33, and outlet threeway 32 links together by screw thread and spray low pressure braided construction hose 34.
As shown in Figure 3, annular spray atomizer 16 comprises first ring sparger 39 and second ring sparger 40; First ring sparger 39, the first spray thrower inlet union 29, first pipe connecting 41, Y-junction 37 and spray high-voltage quick joint 15 link together in regular turn; Second ring sparger 40, the second spray thrower inlet union 42, two pass joints 38, second pipe connecting 43, Y-junction 37 and spray high-voltage quick joint 15 link together in regular turn.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: the utility model has two kinds of operation operating modes: in the storage tank 10 every cubic metre of the hydrogen sulfide content of gas less than every cubic metre of the hydrogen sulfide content of gas in 20 milligrams or the storage tank 10 greater than 20 milligrams of operating modes.
One, in the storage tank 10 every cubic metre of the hydrogen sulfide content of gas less than 20 milligrams of operating modes: by computer 20 output signals to frequency transformer 21, control diaphragm metering pump 2 motors do not turn round, plunger type metering pump 1 motor rotation progressively reduces, make the variation of volume pump 1 liquid supply rate make motor rotation keep certain revolution by the manual regulation travel of plunger, thereby every cubic metre of the content that makes the hydrogen sulfide of gas in the storage tank 10 is less than 10 milligrams.
Two, in the storage tank 10 every cubic metre of the content of the hydrogen sulfide of gas greater than 20 milligrams operating mode: by computer 20 output signals to frequency transformer 21, starting or increase diaphragm metering pump 2 motor rotations, and plunger type metering pump 1 motor rotation is progressively increased, also can make the variation of diaphragm metering pump 2 liquid supply rates make motor rotation keep certain revolution, the content of the hydrogen sulfide of gas in the storage tank 10 is controlled at every cubic metre less than in 10 milligrams the scope by the manual regulation travel of plunger.
Claims (10)
- [claim 1] 1, hydrogen sulfide is eliminated complexes in a kind of crude oil, it is characterized in that comprising sulfur elimination flow container and volume pump Controlling System, on the sulfur elimination flow container, be installed with the outlet threeway, outlet threeway and low pressure braided construction hose link together, the low pressure braided construction hose is connected with plunger type metering pump by the second low pressure rapid-acting coupling and inlet valve, plunger type metering pump is connected with the high pressure braided construction hose by high-voltage quick joint and outlet valve, the high pressure braided construction hose is connected with the sulfur elimination liquid import of not having the obstruction mixing tank by high-voltage quick joint, not having the mixing tank of obstruction is connected with the solids treatment device by oil pipe, in the solids treatment device solid processing agent is housed, the solids treatment device communicates with storage tank by advancing jar skirt;The outlet threeway links together with spray low pressure braided construction hose, spray low pressure braided construction hose is connected with diaphragm metering pump by the first low pressure rapid-acting coupling and inlet valve, diaphragm metering pump is connected with spray high pressure braided construction hose by spray high-voltage quick joint and outlet valve, and spray high pressure braided construction hose is connected with annular spray atomizer by the spray high-voltage quick joint;The volume pump Controlling System comprises the motor of H, low-pass filter amplifier, low-pass filter signal line, AD converter, AD signal wire, computer, signal wire, frequency transformer, first three-phase wire, the 3rd three-phase wire, diaphragm metering pump and the motor of plunger type metering pump, and the motor of H, low-pass filter amplifier, low-pass filter signal line, AD converter, AD signal wire, computer, signal wire, frequency transformer, first three-phase wire, plunger type metering pump links together in regular turn; The motor of frequency transformer, the 3rd three-phase wire, diaphragm metering pump links together in regular turn.
- Hydrogen sulfide is eliminated complexes in [claim 2] 2, the crude oil according to claim 1, it is characterized in that frequency transformer, second three-phase wire, switch box link together in regular turn.
- Hydrogen sulfide is eliminated complexes in [claim 3] 3, the crude oil according to claim 1 and 2, it is characterized in that not having the mixing tank of obstruction and is connected with the oil pipe gate by pipe fitting joint.
- Hydrogen sulfide is eliminated complexes in [claim 4] 4, the crude oil according to claim 1 and 2, it is characterized in that the outlet of strainer and sulfur elimination flow container links together by flange, and strainer and outlet threeway are by being threaded togather.
- Hydrogen sulfide is eliminated complexes in [claim 5] 5, the crude oil according to claim 3, it is characterized in that the outlet of strainer and sulfur elimination flow container links together by flange, and strainer and outlet threeway are by being threaded togather.
- Hydrogen sulfide is eliminated complexes in [claim 6] 6, the crude oil according to claim 1 and 2, it is characterized in that exporting threeway and links together by screw thread and low pressure braided construction hose, and the outlet threeway links together by screw thread and spray low pressure braided construction hose.
- Hydrogen sulfide is eliminated complexes in [claim 7] 7, the crude oil according to claim 5, it is characterized in that exporting threeway and links together by screw thread and low pressure braided construction hose, and the outlet threeway links together by screw thread and spray low pressure braided construction hose.
- Hydrogen sulfide is eliminated complexes in [claim 8] 8, the crude oil according to claim 1 and 2, it is characterized in that annular spray atomizer comprises first ring sparger and second ring sparger; First ring sparger, the first spray thrower inlet union, first pipe connecting, Y-junction and spray high-voltage quick joint link together in regular turn; Second ring sparger, the second spray thrower inlet union, two pass joints, second pipe connecting, Y-junction and spray high-voltage quick joint link together in regular turn.
- Hydrogen sulfide is eliminated complexes in [claim 9] 9, the crude oil according to claim 5, it is characterized in that annular spray atomizer comprises first ring sparger and second ring sparger; First ring sparger, the first spray thrower inlet union, first pipe connecting, Y-junction and spray high-voltage quick joint link together in regular turn; Second ring sparger, the second spray thrower inlet union, two pass joints, second pipe connecting, Y-junction and spray high-voltage quick joint link together in regular turn.
- Hydrogen sulfide is eliminated complexes in [claim 10] 10, the crude oil according to claim 7, it is characterized in that annular spray atomizer comprises first ring sparger and second ring sparger; First ring sparger, the first spray thrower inlet union, first pipe connecting, Y-junction and spray high-voltage quick joint link together in regular turn; Second ring sparger, the second spray thrower inlet union, two pass joints, second pipe connecting, Y-junction and spray high-voltage quick joint link together in regular turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203022055U CN201264993Y (en) | 2008-09-22 | 2008-09-22 | Whole set devices for removing sulfurated hydrogen in crude oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203022055U CN201264993Y (en) | 2008-09-22 | 2008-09-22 | Whole set devices for removing sulfurated hydrogen in crude oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201264993Y true CN201264993Y (en) | 2009-07-01 |
Family
ID=40831355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203022055U Expired - Fee Related CN201264993Y (en) | 2008-09-22 | 2008-09-22 | Whole set devices for removing sulfurated hydrogen in crude oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201264993Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115244A (en) * | 2013-01-18 | 2013-05-22 | 西安建筑科技大学 | Biological inhibition method and system of hydrogen sulfide gas in oil gathering system |
| CN103961968A (en) * | 2014-05-27 | 2014-08-06 | 中国海洋石油总公司 | Filter connection cylinder used for FPSO hydrogen sulfide measuring meter |
| CN105032150A (en) * | 2015-07-13 | 2015-11-11 | 陕西明特石油技术有限公司 | Pressure-stock-type two-stage double-agent desulfurization device and application method thereof |
-
2008
- 2008-09-22 CN CNU2008203022055U patent/CN201264993Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115244A (en) * | 2013-01-18 | 2013-05-22 | 西安建筑科技大学 | Biological inhibition method and system of hydrogen sulfide gas in oil gathering system |
| CN103115244B (en) * | 2013-01-18 | 2014-07-23 | 西安建筑科技大学 | Biological inhibition method and system of hydrogen sulfide gas in oil gathering system |
| CN103961968A (en) * | 2014-05-27 | 2014-08-06 | 中国海洋石油总公司 | Filter connection cylinder used for FPSO hydrogen sulfide measuring meter |
| CN103961968B (en) * | 2014-05-27 | 2016-06-08 | 中国海洋石油总公司 | A kind of filtration for FPSO hydrogen sulfide measuring instrument connects cylinder |
| CN105032150A (en) * | 2015-07-13 | 2015-11-11 | 陕西明特石油技术有限公司 | Pressure-stock-type two-stage double-agent desulfurization device and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205027572U (en) | Crude oil sampling device | |
| CN201264993Y (en) | Whole set devices for removing sulfurated hydrogen in crude oil | |
| CN107937016A (en) | A kind of device of oil well gathering system hydrogen sulfide HIGH PRESSURE TREATMENT | |
| CN201593409U (en) | Desulphurization device with pump priming method | |
| CN202860509U (en) | DOP (Dioctyl-Phthalate) aerosol generator | |
| CN107321139A (en) | A kind of emission-control equipment | |
| CN204829218U (en) | Super little fog lubrication and cooling system | |
| CN107975360A (en) | A kind of device and method of oil well gathering system hydrogen sulfide HIGH PRESSURE TREATMENT | |
| CN110562907B (en) | Automatic control system for unloading tank car light oil by using rotary piston pump and control method thereof | |
| CN208474949U (en) | A kind of apparatus for making gas ordorous | |
| CN112796709A (en) | Corrosion inhibitor dosing device for preventing carbon dioxide corrosion of oil and gas well | |
| CN208934672U (en) | A kind of well mouth of oil well ultrasound heavy oil viscosity-falling unit | |
| CN205559107U (en) | Natural -gas engine gas -supply system | |
| CN204591209U (en) | Many seam volume fracturing diverting agent adding sets in a kind of Oil/gas Well multistage section | |
| CN207297309U (en) | Air compressor control system | |
| CN207361955U (en) | Povidone recovery system in a kind of waste water | |
| CN209210378U (en) | A kind of Mobile automatic charging action of chemicals tank car | |
| CN202951477U (en) | Reinforced reation kettle is absorbed to low pressure | |
| CN106121620A (en) | Oil/gas Well sulphur removal and residual acid solution processing means and operational approach | |
| CN214170520U (en) | Natural gas well mouth atomizing desulfurization antiscale system | |
| CN208090866U (en) | A kind of high-pressure atomization spray deodorization device | |
| CN105617822A (en) | Elimination apparatus of hydrogen sulfide in crude oil storage tank, and elimination method thereof | |
| CN105665173A (en) | Painting system conversion joint of unmanned aerial vehicle | |
| CN203329940U (en) | Coating conveying device | |
| CN204111319U (en) | A kind of high-pressure helium and argon purification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CNPC XIBU DRILLING ENGINEERING COMPANY LIMITED Free format text: FORMER OWNER: XINJIANG PETROLEUM ADMINISTRATION OIL-TESTING COMPANY Effective date: 20121227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 834027 KARAMAY, XINJIANG UYGUR AUTONOMOUS REGION TO: 830026 URUMQI, XINJIANG UYGUR AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121227 Address after: 830026, No. 68 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: CNPC Xibu Drilling Engineering Company Limited Address before: 834027 the Xinjiang Uygur Autonomous Region Karamay three Ping Town entrepreneurial Village Patentee before: Xinjiang Petroleum Administration Oil-testing Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20160922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |