CN201052450Y - Compound film separation nitrogen-producing system for drilling technique - Google Patents
Compound film separation nitrogen-producing system for drilling technique Download PDFInfo
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- CN201052450Y CN201052450Y CNU2007200799861U CN200720079986U CN201052450Y CN 201052450 Y CN201052450 Y CN 201052450Y CN U2007200799861 U CNU2007200799861 U CN U2007200799861U CN 200720079986 U CN200720079986 U CN 200720079986U CN 201052450 Y CN201052450 Y CN 201052450Y
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- nitrogen
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- drilling technology
- composite membrane
- control system
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Abstract
The utility model discloses a complex film separation nitrogen making system which can meet the round-the-clock petroleum and natural gas drilling technique, comprising an air pre-processing system, a nitrogen barrier separation system, and an automatic control system. The air pre-processing system is composed of a compressed air inlet pipe, an air cooler, an air filter set, and an air heater which are in a sequence connected. The nitrogen barrier separation system is composed of a complex film pipe assembly and a nitrogen transmission line system. The automatic control system is composed of a programming automatic control system and a process execution control system. Because that systems are integrated into a box prying body, and the complex film pipe assembly has the advantages of water resistance, fire resistant, pressure resistance and gas proofness and the like, the utility model has the advantages of fire resistant, pressure resistance, gas proofness, and safety, high-efficiency, long service life, and no pollution and the like, which is fit for round-the-clock petroleum and natural gas drilling and the like.
Description
Technical field:
The utility model relates to a kind of nitrogen gas generating system, relate in particular to a kind of be used for drilling technology composite membrane separate nitrogen gas generating system, belong to industrial machinery and make the field.
Background technology:
Nitrogen is a kind of inert gas, and can be widely used in various is the industrial equipment running of main purpose with the oxygen barrier, owing to contain 80 percent the nitrogen of having an appointment in the air, so nitrogen is convenient to be gathered, various nitrogen manufacturing systems also occurred thereupon.
At present, nitrogen also is widely used in exploitation, completion and the well workover of oil gas well already, but the application in oil drilling is in the junior stage.Fact proved that it is very good that nitrogen is used for the oil drilling effect, mainly is owing to lack the equipment of making nitrogen that is fit to field work and adapts to adverse circumstances.The existing drilling well equipment of making nitrogen generally is carbon molecular sieve making nitrogen by pressure swing adsorption device, this device comprises aerial cooler, air cleaner group, nitrogen separation system, wherein the nitrogen separation system is raw material with compressed air, with the carbon molecular sieve is adsorbent, adopt transformation adsorption process (being called for short P.S.A), under normal temperature low pressure, utilize airborne oxygen different with the diffusion rate of nitrogen in carbon molecular sieve, oxygen is separated with nitrogen, thereby obtained nitrogen.The shortcoming of this device is: comprise purifying (deoxygenation) process in process of production, this process need adds hydrogen and provides suitable temperature with steam, reach the purpose of oxyhydrogen reaction with deoxygenation, so the equipment that needs is more, overall volume is big, install and move all inconveniences, and be subjected to the influence of extraneous factor bigger, the purity of nitrogen is wayward.
The also useful homogeneous membrane equipment of making nitrogen in addition, this equipment comprises aerial cooler equally, the air cleaner group, the nitrogen separation system, but the nitrogen separation system utilizes the difference of each component flowing velocity in the film pipe in the air and nitrogen separation is come out, it is less that this mode is influenced by extraneous factor, nitrogen gas purity is higher, it is a kind of reasonable nitrogen-making device, but the homogeneous membrane equipment of making nitrogen in the market has following defective: whole device does not form an effective cured article, but adopt field-installed mode to finish, so volume is bigger, move inconvenience, and quality control acquires a certain degree of difficulty; The resistance to elevated temperatures of homogeneous membrane is relatively poor in addition, and air themperature is very high sometimes during field work, temperature still very high (or because of power failure cooler do not work) behind subcooler, can cause certain infringement (this moment is if stop the supple of gas or steam accidents such as then may causing bit freezing) to homogeneous membrane film pipe, thereby shorten the life-span of equipment, so this equipment not too adapts to bad working environment.
Summary of the invention:
The purpose of this utility model provide with regard to being to address the above problem a kind of be used for drilling technology composite membrane separate nitrogen gas generating system.
The utility model is realized above-mentioned purpose in the following manner:
The utility model comprises air pretreatment system, nitrogen film separation system and nitrogen injection drilling technology automatic control system, under the control of nitrogen injection drilling technology automatic control system, compressed air is through air pretreatment system, the output of nitrogen film separation system, and all devices all places in the box prying body; Described air pretreatment system is formed by connecting by tracheae successively by compressed air inlet pipe, aerial cooler, air cleaner group and air heater; Described nitrogen film separation system is made up of compound film tube assembly and nitrogen export pipeline system; Described nitrogen injection drilling technology automatic control system is carried out electric system by programmable automatic control system and technology controlling and process and is formed.
All devices all is fixedly installed in the box prying body, effective reduced volume not only, and connect between each parts firm, stably control appliance performance and nitrogen gas purity; The air pretreatment system can be clean with the dust in the compressed air, contaminant removal, and air is reached be adapted to the optimal separation temperature of composite membrane, to improve the output and the purity of nitrogen; Compound film tube assembly in the nitrogen film separation system has advantages such as operating temperature range is big, resistance to water is strong, oil resistivity is strong, resistance tocrocking is strong, can safeguard, these advantages are that the homogeneous membrane pipe module on the present market is not available; Programmable automatic control system is the PLC controller, is a kind of general automatic control system, can control automatically by the predetermined value of design variablees such as the temperature in the nitrogen film separation system, pressure, nitrogen gas purities.
In practical work process, compressed air enters from compressed air inlet pipe of the present utility model, undertaken entering the air cleaner group after the cooled dehydrated by aerial cooler (generally adopting air cooling way) then, the air cleaner group can be with the dust in the compressed air, contaminant removal is clean, this helps protecting compound film tube, clean compressed air is sent to the nitrogen film separation system after being heated to uniform temperature (being the best with 50 degrees centigrade generally) through air heater, the nitrogen film separation system is made of compound film tube assembly and nitrogen export pipeline system, the compound film tube assembly is a hollow composite membrane bundle cylindraceous, every bundle has comprised up to a million doughnuts, so that separating area to greatest extent to be provided, about tens microns of every fibre diameter, hairline as the people is thin, compressed air is entered by an end of fibre bundle, gas molecule under pressure, at first in the contact of the high-pressure side of composite membrane, be absorption then, dissolving, diffusion, precipitation, overflow, the infiltration rate difference of every kind of gas, oxygen, carbon dioxide, the infiltration rate of steam etc. is fast, ooze out to the low pressure outside by the inboard fibre wall of high pressure, be discharged in the outside air by the opening of compound film tube assembly one side; " gas " that infiltration rate is little---nitrogen is enriched in the high pressure inboard, is expelled to the nitrogen storage gas tank by the other end of compound film tube assembly, thereby has realized that oxygen one nitrogen separates, and obtains nitrogen.
As preferred forms of the present utility model, described air cleaner group is: coarse filtration air cleaner, middle air filtering filter, fine filtering air cleaner and ultra-fine air filtering filter serial in order link to each other.This level Four filter can thoroughly be removed dust and the impurity in the compressed air, and the difficult obstruction of filter, can reduce wash number.
In described box prying body, be equipped with air heater is carried out temperature controlled temperature controller.The same with temperature control mode commonly used, the induction end of temperature controller is installed on the gas outlet end of air heater, the control end of temperature controller is connected with the relay switch of air heater, when the air themperature of the gas outlet end of air heater is lower than design temperature, air heater work; When the air themperature of the gas outlet end of air heater was higher than design temperature, air heater quit work.The air themperature of the gas outlet end of air heater just can keep more stable like this, helps nitrogen separation.
In described box prying body the air pressure safety governor is installed, the pressure detector of air pressure safety governor is installed on the tracheae between air cleaner group and the air heater, and the control end of air pressure safety governor is connected with air heater.Not having air when system's running enters; or there is air to enter but pressure during less than a certain setting value; air heater can cut out under the effect of air pressure safety governor automatically, thereby diaphragm group and air heater make that the film pipe is stable, trouble free service and being without prejudice.
Between described compressed air inlet pipe and nitrogen escape pipe, straight-through tracheae is installed, on straight-through tracheae, manually-operated gate is installed.Straight-through tracheae uses compressed air easily when being convenient to need in the well site.
On defective nitrogen exhaust pipe, relief valve is installed.Behind the system-down, still have gases at high pressure in pipeline and the pocket, do not meet the well site safety standard, remove the resettlement operation, can use relief valve to be released by the pressure of internal system for the ease of implementing peripheral conduits safely.
Between described nitrogen film separation system and nitrogen storage gas tank, the nitrogen gas purity control system is installed.The basic principle of nitrogen gas purity control system is by product gas sample detecting branch road, battery is online shows oxygen content gas (promptly feeding back purity of product gas) at that time with the machine testing oxygen content gas and by oxygen analyzer by oxygen inspection, makes the film group obtain rational pressure differential and the purity of adjustments of gas by regulating the purity control valve.
Port at described compressed air inlet pipe and nitrogen escape pipe all is equipped with by benevolence snap joint, and benevolence snap joint is connected with box prying body by bracing means.Powerful impulsive contact force when this structure can cushion field operation prevents to damage joint and pipe welding seam.
The beneficial effects of the utility model are:
As from the foregoing, the utlity model has high temperature high voltage resistant, anti-soil, safety, can safeguard, advantage such as efficient, energy-conservation, long-lived, environmental protection, can adapt to the open-air round-the-clock oil in any area, natural gas drilling well variable working condition.
Description of drawings:
Accompanying drawing is the plan structure schematic diagram after the utility model removes cover top portion.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
As shown in drawings, the utility model comprises air pretreatment system, nitrogen film separation system and nitrogen injection drilling technology automatic control system, under the control of nitrogen injection drilling technology automatic control system, compressed air is through air pretreatment system, the output of nitrogen film separation system, and all devices all places in the box prying body 3; Described air pretreatment system is formed by connecting by tracheae successively by compressed air inlet pipe 7, aerial cooler 8, air cleaner group 11 and air heater 5; Described nitrogen film separation system is made up of compound film tube assembly 19 and nitrogen export pipeline system; Described nitrogen injection drilling technology automatic control system is carried out electric system by programmable automatic control system 15 and technology controlling and process and is formed.
All devices all is fixedly installed in the box prying body 3, effective reduced volume not only, and connect between each parts firm, stably control appliance performance and nitrogen gas purity; The air pretreatment system can be clean with the dust in the compressed air, contaminant removal, and air is reached be adapted to the optimal separation temperature of composite membrane, to improve the output and the purity of nitrogen; Compound film tube assembly in the nitrogen film separation system has advantages such as operating temperature range is big, resistance to water is strong, oil resistivity is strong, resistance tocrocking is strong, can safeguard, these advantages are that the homogeneous membrane pipe module on the present market is not available; Programmable automatic control system 15 is the PLC controller, is a kind of general automatic control system, can control automatically by the predetermined value of design variablees such as the temperature in the nitrogen film separation system, pressure, nitrogen gas purities.
As shown in drawings, air cleaner group 11 is: coarse filtration air cleaner 9, middle air filtering filter 10, fine filtering air cleaner 12 and ultra-fine air filtering filter 13 serial in order link to each other.This level Four filter can thoroughly be removed dust and the impurity in the compressed air, and the difficult obstruction of filter, can reduce wash number.
In box prying body 3, be equipped with air heater 5 is carried out temperature controlled temperature controller 16.The same with temperature control mode commonly used, the induction end of temperature controller 16 is installed on the gas outlet end of air heater 5, the control end of temperature controller 16 is connected with the relay switch of air heater 5, when the air themperature of the gas outlet end of air heater 5 is lower than design temperature, air heater 5 work; When the air themperature of the gas outlet end of air heater 5 was higher than design temperature, air heater 5 quit work.The air themperature of the gas outlet end of air heater 5 just can keep more stable like this, helps nitrogen separation.
In box prying body 3, air pressure safety governor 4 is installed, the pressure detector 2 of air pressure safety governor 4 is installed on the tracheae between air cleaner group 11 and the air heater 5, and the control end of air pressure safety governor 4 is connected with air heater 5.Not having air when system's running enters; or there is air to enter but pressure during less than a certain setting value; air heater 5 can cut out under the effect of air pressure safety governor 4 automatically, thereby diaphragm group and air heater 5 make that the film pipe is stable, trouble free service and being without prejudice.
Straight-through tracheae 6 is installed between compressed air inlet pipe 7 and nitrogen escape pipe 21, on straight-through tracheae 6, manually-operated gate 18 is installed.Straight-through tracheae 6 uses compressed air easily when being convenient to need in the well site.
On defective nitrogen exhaust pipe 17, relief valve 14 is installed.Behind the system-down, still have gases at high pressure in pipeline and the pocket, do not meet the well site safety standard, remove the resettlement operation, can use relief valve 14 to allow the pressure of internal system be released for the ease of implementing peripheral conduits safely.
Between nitrogen film separation system and nitrogen storage gas tank 20, nitrogen gas purity control system 22 is installed.The basic principle of nitrogen gas purity control system 22 is by product gas sample detecting branch road, battery is online shows oxygen content gas (promptly feeding back the gas purity of product) at that time with the machine testing oxygen content gas and by oxygen analyzer by oxygen inspection, makes the film group obtain rational pressure differential and the purity of adjustments of gas by regulating the purity control valve.
Port at compressed air inlet pipe 7 and nitrogen escape pipe 21 all is equipped with by benevolence snap joint 1, and benevolence snap joint 1 is connected with box prying body 3 by bracing means.Powerful impulsive contact force when this structure can cushion field operation prevents to damage joint and pipe welding seam.
In practical work process, compressed air enters from compressed air inlet pipe 7 of the present utility model, undertaken entering air cleaner group 11 after the cooled dehydrated by aerial cooler 8 (generally adopting air cooling way) then, air cleaner group 11 can be with the dust in the compressed air, contaminant removal is clean, this helps protecting compound film tube, clean compressed air is sent to nitrogen film separation system 19 after being heated to uniform temperature (being the best with 50 degrees centigrade generally) through air heater, the nitrogen film separation system is made of compound film tube assembly 19 and nitrogen export pipeline system, compound film tube assembly 19 is hollow composite membrane bundles cylindraceous, every bundle has comprised up to a million doughnuts, so that separating area to greatest extent to be provided, about tens microns of every fibre diameter, hairline as the people is thin, compressed air is entered by an end of fibre bundle, gas molecule under pressure, at first in the contact of the high-pressure side of composite membrane, be absorption then, dissolving, diffusion, precipitation, overflow, the infiltration rate difference of every kind of gas, oxygen, carbon dioxide, the infiltration rate of steam etc. is fast, ooze out to the low pressure outside by the inboard fibre wall of high pressure, be discharged in the outside air by the opening of compound film tube assembly 19 1 sides; " gas " that infiltration rate is little---nitrogen is enriched in the high pressure inboard, is expelled to the nitrogen storage gas tank by the other end of compound film tube assembly 19, thereby has realized that oxygen one nitrogen separates, and obtains nitrogen.
Of the present utility model focus on providing a kind of with in all system integrations to one box prying body and use the compound film tube assembly come separation of nitrogen be used for drilling technology composite membrane separate nitrogen gas generating system, if only change the size of system or only change the position of each subsystem, then all should be considered as invading the right of the utility model patent.
Claims (8)
1. a composite membrane that is used for drilling technology separates nitrogen gas generating system, comprise air pretreatment system, nitrogen film separation system and nitrogen injection drilling technology automatic control system, under the control of nitrogen injection drilling technology automatic control system, compressed air is through air pretreatment system, the output of nitrogen film separation system, and it is characterized in that: all devices all places in the box prying body (3); Described air pretreatment system is formed by connecting by tracheae successively by compressed air inlet pipe (7), aerial cooler (8), air cleaner group (11) and air heater (5); Described nitrogen film separation system is made up of compound film tube assembly (19) and nitrogen export pipeline system; Described nitrogen injection drilling technology automatic control system is carried out electric system by programmable automatic control system (15) and technology controlling and process and is formed.
2. the composite membrane that is used for drilling technology according to claim 1 separates nitrogen gas generating system, and it is characterized in that: described air cleaner group (11) is: coarse filtration air cleaner (9), middle air filtering filter (10), fine filtering air cleaner (12) and ultra-fine air filtering filter (13) serial in order link to each other.
3. the composite membrane that is used for drilling technology according to claim 1 separates nitrogen gas generating system, it is characterized in that: be equipped with in described box prying body (3) air heater (5) is carried out temperature controlled temperature controller (16).
4. the composite membrane that is used for drilling technology according to claim 1 separates nitrogen gas generating system, it is characterized in that: air pressure safety governor (4) is installed in described box prying body (3), the pressure detector (2) of air pressure safety governor (4) is installed on the tracheae between air cleaner group (11) and the air heater (5), and the control end of air pressure safety governor (4) is connected with air heater (5).
5. the composite membrane that is used for drilling technology according to claim 1 separates nitrogen gas generating system, it is characterized in that: between described compressed air inlet pipe (7) and nitrogen escape pipe (21), straight-through tracheae (6) is installed, manually-operated gate (18) is installed on straight-through tracheae (6).
6. the composite membrane that is used for drilling technology according to claim 1 separates nitrogen gas generating system, it is characterized in that: relief valve (14) is installed on defective nitrogen exhaust pipe (17).
7. the composite membrane that is used for drilling technology according to claim 1 separates nitrogen gas generating system, it is characterized in that: between described nitrogen film separation system and nitrogen storage gas tank (20) nitrogen gas purity control system (22) is installed.
8. the composite membrane that is used for drilling technology according to claim 1 separates nitrogen gas generating system, it is characterized in that: the port at described compressed air inlet pipe (7) and nitrogen escape pipe (21) all is equipped with by benevolence snap joint (1), and benevolence snap joint (1) is connected with box prying body (3) by bracing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200799861U CN201052450Y (en) | 2007-06-20 | 2007-06-20 | Compound film separation nitrogen-producing system for drilling technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200799861U CN201052450Y (en) | 2007-06-20 | 2007-06-20 | Compound film separation nitrogen-producing system for drilling technique |
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| Publication Number | Publication Date |
|---|---|
| CN201052450Y true CN201052450Y (en) | 2008-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200799861U Expired - Fee Related CN201052450Y (en) | 2007-06-20 | 2007-06-20 | Compound film separation nitrogen-producing system for drilling technique |
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| Country | Link |
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| CN (1) | CN201052450Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102068861A (en) * | 2010-11-17 | 2011-05-25 | 无锡泰立特科技有限公司 | Improved mine combined gas filter |
-
2007
- 2007-06-20 CN CNU2007200799861U patent/CN201052450Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102068861A (en) * | 2010-11-17 | 2011-05-25 | 无锡泰立特科技有限公司 | Improved mine combined gas filter |
| CN102068861B (en) * | 2010-11-17 | 2012-07-04 | 无锡泰立特科技有限公司 | Improved mine combined gas filter |
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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: CHENGDU LAN AO PETROLEUM TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHANG XING Effective date: 20080509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080509 Address after: No. 1, 36 Taixing Road, Sichuan, Chengdu Province, 478, zip code: 610000 Patentee after: Chengdu LAN Ao Petroleum Technology Co Ltd Address before: Sichuan city of Chengdu province Wuhou District Branch Road No. 2 1 Unit No. 3, zip code: 610000 Patentee before: Zhang Xing |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20120620 |