CN101270650A - Skid mounted polymer injection system for marine oil field - Google Patents
Skid mounted polymer injection system for marine oil field Download PDFInfo
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- CN101270650A CN101270650A CNA2008101057783A CN200810105778A CN101270650A CN 101270650 A CN101270650 A CN 101270650A CN A2008101057783 A CNA2008101057783 A CN A2008101057783A CN 200810105778 A CN200810105778 A CN 200810105778A CN 101270650 A CN101270650 A CN 101270650A
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Abstract
The invention discloses a skid-mounted polymer injection system for an offshore oil field, comprising a feeding system/ a dissolving system/the transportation of a skidded block, the skidded block of a curing system, the skidded block of an on-line curing system, a feeding skidded block and the skidded block of a high pressure injection system that are individually formed and communicated by a pipeline. The outlet end of the feeding system/ the dissolving system /the transportation of skidded block are respectively communicated with the input end of the skidded block of curing system and the skidded block of on-line curing system by the pipeline. The output end of the skidded block of curing system and the skidded block of on-line curing system are communicated with the input end of the feeding skidded block by the pipeline. The output end of the feeding skidded block is communicated with the input end of the skidded block of high-pressure injection system. The output end of the skidded block of high-pressure injection system forms the integrated output end of the skid-mounted polymer injection system. The whole system of the invention is divided into a plurality of skidded blocks that have compact structure and is designed according to the practical ability of an offshore loop wheel machine. Size and weight have good adjustability and meet the requirements of the safety hoisting and convenient installation for offshore equipments. So the skid-mounted polymer injection system for the offshore oil field creates conditions for large-scale offshore well-group polymer injection.
Description
Technical field
The present invention relates to a kind of polymer injector system.Particularly relate to a kind of compact conformation, according to the design of the practical capacity of marine loop wheel machine, size, weight adjustability are strong, satisfy the safety lifting and the convenient skid mounted polymer injection system for marine oil field of installing of offshore set-up.
Background technology
In the oil field, land, along with polymer injection displacement of reservoir oil technology the applying of each oil field, improve recovery ratio and increase the effect of crude output more and more significant.Also expose the existing construction at poly-station and the problem of operation aspect annotated: 1, one-time construction investment cost height, facility is complete, and floor space is big; 2, the equipment of building a station can not utilize again, and all buildings and equipment all are fixed pattern.When an injection end cycle, need other block operation, equipment can not move, if the operation adjustment, its workload is big and take high; 3, transfer process is grown and mostly is buried type, and is difficult in maintenance.The existence of these problems has formed obstruction to the expansion of polymer displacement of reservoir oil tech.Offshore oilfield is annotated poly-owing to be subjected to the restriction and the requirement of working conditions such as platform space, lifting, power supply capacity, demand for security, obviously can not carry out according to the notes poly mode on land.Therefore, the skid-mounted type that satisfies the maritime safety production requirement is annotated the polymerizing technology systematic research becomes a kind of inevitable.And find that by investigation and patent inquiry a few thing was made in former land and some external oil fields aspect polymer injector system, but do not propose to satisfy the notes polymerizing technology system that offshore oilfield is annotated poly-demand at this special production environment of offshore oilfield.
Summary of the invention
Technical problem to be solved by this invention is, a kind of compact conformation is provided, and according to the practical capacity design of marine loop wheel machine, size, weight adjustability are strong, satisfy the safety lifting and the convenient skid mounted polymer injection system for marine oil field of installing of offshore set-up.
The technical solution adopted in the present invention is: a kind of skid mounted polymer injection system for marine oil field, blanking/dissolution system/conveying the skid that includes independent formation and be connected by pipeline, the aging system skid, online slaking skid, feeding skid and high pressure injection system skid, wherein, the output of blanking/dissolution system/conveying skid is connected with the input of aging system skid and online slaking skid respectively by pipeline, the output of aging system skid and online slaking skid is connected by the input of pipeline with the feeding skid, the output of feeding skid is connected by the input of pipeline with the high pressure injection system skid, and the output of high pressure injection system skid constitutes the integral body of skid-mounted type polymer injector system and annotates poly-output.
Described blanking/dissolution system/conveying skid includes two-way input, and wherein one the tunnel: hopper, metering blanking device, material-falling hopper, the ejector of host are housed in the tandem array successively, and described ejector also connects blast fan; Another road is: the dosing water supply import, strainer, feed flow electric control valve, dosing water supply electromagnetic valve, the feed flow electromagnetic flowmeter that are connected successively; Described ejector and the outflow end of feed flow electromagnetic flowmeter all are connected the input of pigment mixing head, and the output of pigment mixing head connects the dissolving tank of built-in agitator, and described dissolving tank output connects the aging system skid by the conveying screw rod pump.
Described aging system skid includes: the first slaking jar and the second slaking jar that input is connected with the output of blanking/dissolution system/conveying skid by the import electric butterfly valve respectively, be respectively arranged with agitator in the first slaking jar and the second slaking jar, the output of the described first slaking jar and the second slaking jar is connected by the input of outlet electric butterfly valve with the feeding skid respectively.
Described online slaking skid includes the 3rd slaking jar that input is connected with the output of blanking/dissolution system/conveying skid by the import electric butterfly valve, be provided with agitator in the 3rd slaking jar, described the 3rd slaking jar output is connected by the input of outlet electric butterfly valve with the feeding skid.
Described feeding skid includes the feeding screw pump that input links to each other with aging system skid and online slaking skid, feeding screw rod delivery side of pump connects the input of strainer, and the output of strainer is communicated to the input of high pressure injection system skid.
Described high pressure injection system skid includes the polymer-injecting pump that is connected with the output of feeding skid by the import electric butterfly valve, described polymer-injecting pump feed inlet end and discharge port end are connected with import sample tap and outlet sample tap respectively, and the discharge port end of polymer-injecting pump is connected to and injects injection of well well head and mixing arrangement.
Also be provided with ECU, described ECU includes switch board, the display that links to each other with switch board, and the ups power that power supply is provided to switch board and display, wherein, switch board is connected with blanking/dissolution system/conveying skid, aging system skid, online slaking skid, feeding skid, high pressure injection system skid and the well head injection of injection well and mixing arrangement respectively by lead and each control valve.
Be provided with the slaking jar temperature signal and the slaking jar temperature switch that are connected with ECU in the described first slaking jar, the second slaking jar and the 3rd slaking jar; Also be provided with the low liquid level signal of slaking jar temperature signal, slaking jar temperature switch, slaking jar, the low liquid-level switch of slaking jar, the high liquid level signal of slaking jar, the slaking pipe high level switch that are connected with ECU on the described first slaking jar, the second slaking jar and the 3rd slaking jar; Described dissolving tank also is provided with the high liquid level signal of the dissolving tank that is connected with ECU, dissolving tank high level switch, the low liquid level signal of dissolving tank, the low liquid-level switch of dissolving tank.
Described ECU also by lead respectively be arranged on dissolving tank, the first slaking jar, the second slaking jar and the 3rd slaking jar in agitator be connected.
Skid mounted polymer injection system for marine oil field of the present invention has following characteristics:
1, whole system is divided into several sled pieces, compact conformation, and according to the design of the practical capacity of marine loop wheel machine, size, weight adjustability are strong, the safety lifting and convenient installation of satisfying offshore set-up;
2, well group is annotated poly-many wells of the pump technology that adopts, for the well group at sea is annotated the poly-space of having saved, for the large-scale well group in sea is annotated the poly-condition of having created;
3, its supporting automation control system is to annotate poly-device design at offshore oilfield; realize annotating automatically poly-total solution; realize data acquisition and control and design various safeguard measures at dispersing and dissolving system, aging system, mother liquor injected system, the injected system that is mixed, satisfy the requirement of maritime safety operation.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
Wherein:
The 1-hopper; 2-measures blanking device; The 3-material-falling hopper; The 4-ejector; 5-pigment mixing head; The 6-dissolving tank; The 7-blast fan; 8-dosing water supply import; The 9-strainer; The 10-electric control valve; 11-dosing water supply electromagnetic valve; 12-feed flow electromagnetic flowmeter; 13-conveying screw rod pump; The 14-elevator; The 15-stuff level switch; The 16-vibrator; The 17-screw(-type) feeder; The 18-agitator; The 19-first slaking jar; The 20-second slaking jar; 21-import electric butterfly valve; 22-exports electric butterfly valve; 23-the 3rd slaking jar; 24-feeds screw pump; The 25-strainer; 26-import sampler; The 27-polymer-injecting pump; 28-slaking jar temperature switch; 29-slaking jar temperature signal; 30-slaking jar hangs down liquid level signal; 31-slaking pipe high level switch; The high liquid level signal of 32-slaking jar; The high liquid level signal of 33-dissolving tank; 34-dissolving tank high level switch; The 35-dissolving tank hangs down liquid level signal; The 36-dissolving tank hangs down liquid-level switch; 37-slaking jar hangs down liquid-level switch; 38-feed flow flow signal; 39-liquid supply pressure signal; 40-liquid supply pressure meter; 41-liquid supply pressure transmitter; The 42-flow control valve; 43-injects electromagnetic flowmeter; The 44-static mixer; 45-feeds electromagnetic flowmeter; 46-feeds flow signal; 47-feeds pressure transmitter; 48-feeds pressure gauge; Pressure gauge behind the 49-polymer-injecting pump; Pressure transmitter behind the 50-polymer-injecting pump; Pressure signal behind the 51-polymer-injecting pump; 52-wellhead sampling device; 53-water injection pressure transmitter; 54-is mixed automatically and compares valve; 55-is mixed automatically and compares valve signal; 56-well head pressure meter; 57-well head pressure transmitter; 58-well head pressure signal; 59-plateau pressure meter; The 60-switch board; The 61-display; The 62-printer; The 63-UPS power supply; 64-exports sampler; The 65-Hand-operated butterfly valve; A-blanking/dissolution system/conveying skid; B-aging system skid; The online slaking skid of C-; D-feeds skid; E-high pressure injection system skid; G-injects the well well head and injects and mixing arrangement; The electronic control of M-.
The specific embodiment
Below in conjunction with the drawings and specific embodiments skid mounted polymer injection system for marine oil field of the present invention is made a detailed description.
Skid-mounted type polymer injector system of the present invention adopts manifold and dissimilar valves, to adorn/blanking system, feeding system, dissolution system, conveying device, aging system, feeding unit, high pressure pump into system and inject well well head injection device, mixing arrangement couples together, and the pressure sensor of certain grade is installed at pressure and flow monitoring point, pressure meter and flow measurement device, realize blanking, dissolving, slaking, mixing and the injection of polymer by a plurality of sled module units of forming, and pass through to realize personnel's automation control of whole system and transfer ginseng.
As shown in Figure 1, skid mounted polymer injection system for marine oil field of the present invention, blanking/dissolution system/conveying skid the A that includes independent formation and be connected by pipeline, aging system skid B, online slaking skid C, feeding skid D and high pressure injection system skid E, wherein, the output of blanking/dissolution system/conveying skid A is connected with the input of aging system skid B and online slaking skid C respectively by pipeline, the output of aging system skid B and online slaking skid C is connected by the input of pipeline with feeding skid D, the output of feeding skid D is connected by the input of pipeline with high pressure injection system skid E, and the poly-output of integral body notes of the output formation skid-mounted type polymer injector system of high pressure injection system skid E injects with injection well well head and mixing arrangement G is connected.
Also be provided with ECU F, described ECU F includes switch board 60, the display 61 that links to each other with switch board 60, and the ups power 63 that power supply is provided to switch board 60 and display 61, wherein, switch board 60 is connected with blanking/dissolution system/conveying skid A, aging system skid B, online slaking skid C, feeding skid D, high pressure injection system skid E and the well head injection of injection well and mixing arrangement G respectively by lead and each control valve.
Described blanking/dissolution system/conveying skid A includes two-way input, and wherein one the tunnel: hopper 1, metering blanking device 2, material-falling hopper 3, the ejector 4 of host are housed in the tandem array successively, and described ejector 4 also connects blast fan 7; Another road is: the dosing water supply import 8, strainer 9, electric control valve 10, dosing water supply electromagnetic valve 11, the feed flow electromagnetic flowmeter 12 that are connected successively; Described ejector 4 and the outflow end of feed flow electromagnetic flowmeter 12 all are connected the input of pigment mixing head 5, the output of pigment mixing head 5 connects the dissolving tank 6 of built-in agitator 18, and described dissolving tank 6 outputs connect aging system skid B by conveying screw rod pump 13.
Adopt mechanical device that the polymer masses hopper 1 of packing into (is installed oscillator on the hopper 1 steel plate wall, attemperator is installed in outlet, guarantee blanking smoothly in the moist environment of polymer material at sea and do not stick on the bucket wall), material enters venturi metering blanking device 2 by debugging screw feeding device, send pigment mixing head 5 by blast fan 7 with polymer powder wind again, and come water to mix in this device and low pressure, and the abundant mixed dissolution by dissolving tank 6, by conveying screw rod pump 13 solution is carried and to be put aging system skid B and carry out slaking.
Described aging system skid B includes: the first slaking jar 19 and the second slaking jar 20 that input is connected with the output of blanking/dissolution system/conveying skid A by import butterfly valve 21 respectively, be respectively arranged with agitator 18 in the first slaking jar 19 and the second slaking jar 20, the output of the described first slaking jar 19 and the second slaking jar 20 is connected by the input of outlet electric butterfly valve 22 with feeding skid D respectively.
Described online slaking skid C includes the 3rd slaking jar 23 that input is connected with the output of blanking/dissolution system/conveying skid A by import electric butterfly valve 21, be provided with agitator 18 in the 3rd slaking jar 23, described the 3rd slaking jar 23 outputs are connected by the input of outlet electric butterfly valve 22 with feeding skid D.
Be provided with slaking jar temperature switch 28 and the slaking jar temperature signal 29 that is connected with ECU F in the described first slaking jar 19, the second slaking jar 20 and the 3rd slaking jar 23; Also be provided with the low liquid level signal 30 of slaking jar temperature switch 28, slaking jar temperature signal 29, slaking jar, the low liquid-level switch 37 of slaking jar, the high liquid level signal 32 of slaking jar, the slaking pipe high level switch 31 that are connected with ECU F on the described first slaking jar 19, the second slaking jar 20 and the 3rd slaking jar 23; Described dissolving tank 6 also is provided with the high liquid level signal 33 of the dissolving tank that is connected with ECU F, dissolving tank high level switch 34, the low liquid level signal 35 of dissolving tank, the low liquid-level switch 36 of dissolving tank.
Described ECU F also by lead respectively be arranged on dissolving tank 6, the first slaking jar 19, the second slaking jar 20 and the 3rd slaking jar 23 in agitator 18 be connected.
Abundant dissolved polymers solution enters aging system skid B by conveying screw rod pump 13 and manifold and online slaking skid C carries out abundant slaking.
Reception is from the polymer dissolution of blanking/dissolution system/conveying skid A, is delivered to high pressure injection system skid E by feeding screw pump 24 carry out slaking in the first slaking jar 19, the second slaking jar 20 and the 3rd slaking jar 23 after.
Described feeding skid D includes the feeding screw pump 24 that input links to each other with aging system skid B and online slaking skid C, the output of feeding screw pump 24 connects the input of strainer 25, and the output of strainer 25 is communicated to the input of high pressure injection system skid E.
Described high pressure injection system skid E includes the polymer-injecting pump 27 that is connected with the output of feeding skid D by import electric butterfly valve 21, described polymer-injecting pump 27 feed inlet ends and discharge port end are connected with charging sample tap 26 and outlet sampler 64 respectively, and the discharge port end of polymer-injecting pump 27 is connected to and injects injection of well well head and mixing arrangement G.
Fully the polymer mother liquor after the slaking is delivered to high pressure injection system skid E by feeding screw pump 24 with the high concentration high viscosity mother liquor, and by polymer-injecting pump 27 and supporting manifold and valve mother liquor is delivered to and to be injected that the well well head injects and static mixer 44 entrance and the high pressure of mixing arrangement G come water to carry out mixed configuration by the well concentration of going into of designing requirement, polymer solution behind the mixed diluting enters the injection well by going into the well casing remittance, realizes annotating poly-.
Automatic control process description of the present invention is as follows:
1, when equipment is worked, start the dosing program, systems soft ware detects each slaking jar liquid level automatically.If the first slaking jar 19, when the liquid level of the second slaking jar 20 and the 3rd slaking jar 23 is in the low liquid level of default, the import electric butterfly valve 21 of each slaking jar import is opened automatically, valve passes to blast fan 7 with signal after reaching the position, after blast fan 7 starts, electric control valve 10 controls are supplied water after the scheduled time, record water by feed flow electromagnetic flowmeter 12 and reach setting flow rear screw feeder 17 feeds, water and polymer material are mixed into dissolving tank 6 in pigment mixing head 5, when dissolving tank 6 liquid levels are flooded the blade of agitator 18, agitator 18 starts automatically, when liquid level reached the high liquid level of setting, conveying screw rod pump 13 started liquor charging to the first slaking jar 19 automatically, the second slaking jar 20 and the 3rd slaking jar 23.Along with the carrying out of dosing, when dissolving tank 6 liquid levels constantly are reduced to low liquid level, conveying screw rod pump 13 pump trips; When the liquid level of dissolving tank 6 is elevated to high liquid level; conveying screw rod pump 13 starts automatically; so repeatedly; finish (to the high liquid level of slaking jar) up to one of them slaking jar dosing, slaking jar import electric butterfly valve 21 cuts out automatically, and feeder is shut down; water is during to the high liquid level of dissolving tank 6; dosing water supply electric control valve 10 cuts out (dosing water supply electric control valve 10 is interlocked with the dissolving tank high level switch of dissolving tank 6) automatically, stops blast fan 7 after the scheduled time, and dosing automatic control flow process is finished.
2, after the dosing of a slaking jar is finished, carry out the dosing of next jar according to above program, the slaking jar of having joined liquid simultaneously enters maturation stage, and the curing time is a default; After slaking is finished, start injecting program, after program satisfies default according to curing time and slaking jar liquid level, automatically open slaking jar outlet electric butterfly valve 22, after outlet electric butterfly valve 22 reaches the position, Frequency Converter Control feeding screw pump 24 and injection pump 27 in the switch board 60 start, and enter the injection flow process.During injection, regulate flow control valve 42 (electronic, manual), make injection electromagnetic flowmeter 43 indicating values reach the regulation flow by the injection rate of design; Being mixed automatically than valve 54 of water valve group pressed electromagnetic flowmeter 43 indicating values, and the implantation concentration of setting, and regulates the high pressure water yield automatically.When slaking jar liquid level during, switch the slaking jar and inject, and the slaking jar that fans the air carries out dosing to low liquid level.
3, the entire job flow process is finished in so circulation.
4, ECU F flow for displaying operating mode is monitored all parameters.
Skid-mounted type polymer injector system of the present invention can be divided into a plurality of skids according to offshore platform space and lifting ability.Blanking system and dissolution system and conveying/feeding pump and supporting manifold and valve etc. can be installed concentratedly in a container, become single sled piece, also sled piece between the positive-pressure explosion-proof that comprises between electric fixtures and control operation can be integrated with it, be formed a big sled piece.High head injection pump and well head injection device (comprising the flow regulator that static mixer and the many wells of a pump are used) become a sled piece, and the combination slaking manifold of the tank body of aging system or online slaking becomes sled separately.By corresponding manifold, connections such as valve realize the connection of whole platform notes polymerizing technology system between sled piece and the sled piece.
Claims (9)
1. skid mounted polymer injection system for marine oil field, it is characterized in that, blanking/dissolution system/conveying the skid (A) that includes independent formation and be connected by pipeline, aging system skid (B), online slaking skid (C), feeding skid (D) and high pressure injection system skid (E), wherein, the output of blanking/dissolution system/conveying skid (A) is connected with the input of aging system skid (B) and online slaking skid (C) respectively by pipeline, the output of aging system skid (B) and online slaking skid (C) is connected by the input of pipeline with feeding skid (D), the output of feeding skid (D) is connected by the input of pipeline with high pressure injection system skid (E), and the output of high pressure injection system skid (E) constitutes the integral body of skid-mounted type polymer injector system and annotates poly-output.
2. skid mounted polymer injection system for marine oil field according to claim 1, it is characterized in that, described blanking/dissolution system/conveying skid (A) includes the two-way input, wherein one the tunnel: hopper (1), metering blanking device (2), material-falling hopper (3), the ejector (4) of host are housed in the tandem array successively, and described ejector (4) also connects blast fan (7); Another road is: the dosing water supply import (8) that is connected successively, strainer (9), feed flow electric control valve (10), dosing water supply electromagnetic valve (11), feed flow electromagnetic flowmeter (12); Described ejector (4) and the outflow end of feed flow electromagnetic flowmeter (12) all are connected the input of pigment mixing head (5), the output of pigment mixing head (5) connects the dissolving tank (6) of built-in agitator (18), and described dissolving tank (6) output connects aging system skid (B) by conveying screw rod pump (13).
3. skid mounted polymer injection system for marine oil field according to claim 1, it is characterized in that, described aging system skid (B) includes: the first slaking jar (19) and the second slaking jar (20) that input is connected with the output of blanking/dissolution system/conveying skid (A) by import electric butterfly valve (21) respectively, be respectively arranged with agitator (18) in the first slaking jar (19) and the second slaking jar (20), the output of the described first slaking jar (19) and the second slaking jar (20) is connected by the input of outlet electric butterfly valve (22) with feeding skid (D) respectively.
4. skid mounted polymer injection system for marine oil field according to claim 1, it is characterized in that, described online slaking skid (C) includes the 3rd slaking jar (23) that input is connected with the output of blanking/dissolution system/conveying skid (A) by import electric butterfly valve (21), be provided with agitator (18) in the 3rd slaking jar (23), described the 3rd slaking jar (23) output is connected by the input of outlet electric butterfly valve (22) with feeding skid (D).
5. skid mounted polymer injection system for marine oil field according to claim 1, it is characterized in that, described feeding skid (D) includes the feeding screw pump (24) that input links to each other with aging system skid (B) and online slaking skid (C), the output of feeding screw pump (24) connects the input of strainer (25), and the output of strainer (25) is communicated to the input of high pressure injection system skid (E).
6. skid mounted polymer injection system for marine oil field according to claim 1, it is characterized in that, described high pressure injection system skid (E) includes the polymer-injecting pump (27) that is connected with the output of feeding skid (D) by import electric butterfly valve (21), described polymer-injecting pump (27) feed inlet end and discharge port end are connected with import sample tap (26) and outlet sampler (64) respectively, and the discharge port end of polymer-injecting pump (27) is connected to and injects injection of well well head and mixing arrangement (G).
7. skid mounted polymer injection system for marine oil field according to claim 1, it is characterized in that, also be provided with ECU (F), described ECU (F) includes switch board (60), the display (61) that links to each other with switch board (60), and the ups power (63) that power supply is provided to switch board (60) and display (61), wherein, switch board (60) by lead and each control valve respectively with blanking/dissolution system/conveying skid (A), aging system skid (B), online slaking skid (C), feeding skid (D), high pressure injection system skid (E) and the well head injection of injection well and mixing arrangement (G) are connected.
8. according to claim 1 or 7 described skid mounted polymer injection system for marine oil field, it is characterized in that, be provided with slaking jar temperature signal (29) and the slaking jar temperature switch (28) that is connected with ECU (F) in the described first slaking jar (19), the second slaking jar (20) and the 3rd slaking jar (23); Also be provided with the low liquid level signal (30) of slaking jar temperature signal (29), slaking jar temperature switch (28), slaking jar, the low liquid-level switch (37) of slaking jar, the high liquid level signal of slaking jar (32), the slaking pipe high level switch (31) that are connected with ECU (F) on the described first slaking jar (19), the second slaking jar (20) and the 3rd slaking jar (23); Described dissolving tank (6) also is provided with the low liquid level signal (35) of the high liquid level signal of dissolving tank (33), dissolving tank high level switch (34), dissolving tank, the low liquid-level switch (36) of dissolving tank that is connected with ECU (F).
9. according to claim 2 or 3 or 4 or 7 described skid mounted polymer injection system for marine oil field, it is characterized in that also interior with being arranged on dissolving tank (6), the first slaking jar (19), the second slaking jar (20) and the 3rd slaking jar (23) respectively agitator (18) is connected described ECU (F) by lead.
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- 2008-05-05 CN CNA2008101057783A patent/CN101270650A/en active Pending
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