CN204252982U - Offshore oilfield polymer displacement of reservoir oil polymer solution preparation and injected system - Google Patents
Offshore oilfield polymer displacement of reservoir oil polymer solution preparation and injected system Download PDFInfo
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- CN204252982U CN204252982U CN201420653508.7U CN201420653508U CN204252982U CN 204252982 U CN204252982 U CN 204252982U CN 201420653508 U CN201420653508 U CN 201420653508U CN 204252982 U CN204252982 U CN 204252982U
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Abstract
The utility model discloses a kind of offshore oilfield polymer displacement of reservoir oil polymer solution preparation and injected system, comprise the feeding system, dispersing and dissolving system, aging system and the high pressure injection system that connect successively; Described aging system comprises the slaking tank, feeding screw pump and the duplex strainer that connect successively; Slaking jar agitator is provided with in described slaking tank; Vertical circulation screw pump is provided with outside described slaking tank; Described high pressure injection system comprises the high pressure polymer-injecting pump, high pressure static blender and the injection pipeline that connect successively.The utility model adopts continuous injection allocation and on-line curing technique, Polymer Used For Oil Displacement dry composition can be become meet the polymer solution of technical data index request, and be injected in offshore oilfield reservoir formation, and then realize polymer displacement of reservoir oil and improve the object of offshore oilfield oil recovery factor.
Description
Technical field
The utility model relates to a kind of solution preparation and injected system, particularly relates to a kind of offshore oilfield polymer displacement of reservoir oil polymer solution preparation and injected system.
Background technology
In September, 2003, China National Offshore Oil Corporation starts the injection test of polymer flooding individual well in testing in Bohai heavy oil fields (SZ36-1 oil field) first, obtain good result, postpolymer flood newly increased recoverable reserves and cumulative oil production are all improved significantly, and in coming years, add note poly-oil field quantity gradually, expand the poly-scale of note.Meanwhile, in October, 2013, polymer injector system is successfully promoted the use of Indonesia Java Sea oilfield zones WIDURI oil field by China National Offshore Oil Corporation first, for improving this crude oil recovery ratio.Apply with on-the-spot through technical research for many years, polymer flooding has become a kind of dominant technology that offshore viscous oil field improves recovery ratio.
In the Application and Development of viscous crude field tertiary oil recovery at sea process, face production platform special construction and free space restriction, be applied to the polymer injection allocation station in oil field, land and gap dosing pattern to be difficult to production platform at sea and to apply, constrain the raising of offshore oilfield recovery.Therefore, need a kind of modularization sledge formula polymer injector system that can realize continuous dosing, on-line curing of research and development badly, for replacing the existing gap dosing in oil field, land polymer injector system, shorten the curing time, improve polymer mother liquor quality and utilization rate of equipment and installations, reduce weight of equipment and floor space, save platform space, realize the object improving offshore oilfield oil recovery factor.
Utility model content
The utility model provides a kind of offshore oilfield polymer displacement of reservoir oil polymer solution preparation and injected system for solving in known technology the technical problem that exists, this system adopts continuous injection allocation and on-line curing technique, Polymer Used For Oil Displacement dry composition can be become meet the polymer solution of technical data index request, and be injected in offshore oilfield reservoir formation, and then realize adopting polymer displacement of reservoir oil and the object improving offshore oilfield recovery.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is: a kind of offshore oilfield polymer displacement of reservoir oil polymer solution preparation and injected system, comprise the feeding system, dispersing and dissolving system, aging system and the high pressure injection system that connect successively; Described feeding system comprises the stock chest, screw(-type) feeder and the Venturi tube that connect successively, and described Venturi tube is also connected with blower fan; Described dispersing and dissolving system comprises the pigment mixing head, dissolving tank, grinding pump, one way valve, conveying screw rod pump, pipe stirrer and the static mixer that connect successively; Dissolving tank agitator is provided with in described dissolving tank; Described pigment mixing head is connected respectively with the one-level water supply line of described Venturi tube and low pressure dosing; Connect described one way valve to be connected with the secondary water supply line of low pressure dosing with the pipeline of described conveying screw rod pump; Described aging system comprises the slaking tank, feeding screw pump and the duplex strainer that connect successively; Slaking jar agitator is provided with in described slaking tank; The bottom of described slaking tank is connected with described static mixer, is provided with vertical circulation screw pump outside described slaking tank; Described high pressure injection system comprises the high pressure polymer-injecting pump, high pressure static blender and the injection pipeline that connect successively, connect described high pressure polymer-injecting pump to be connected with high pressure dosing water supply line with the pipeline of described high pressure static blender, described high pressure polymer-injecting pump is connected with described duplex strainer; In the exit of described high pressure polymer-injecting pump, on the exit of described high pressure static blender and the outlet conduit of described duplex strainer, be respectively provided with a sampler.
Described high pressure dosing water supply line is connected with chemical agent supply line.
Described slaking jar agitator is provided with double-layer paddle.
Described one-level water supply line and described secondary water supply line are divided into by same low pressure dosing water supply line, and described low pressure dosing water supply line is provided with ball valve, electronic Cutoff ball valve, pressure transmitter and strainer successively along water supply direction; Described one-level water supply line and described secondary water supply line are provided with electromagnetic flowmeter and electric control valve successively along water supply direction.
Described injection pipeline has two at least.
This system is provided with sledge seat, described feeding system, described dispersing and dissolving system, described aging system and described high pressure injection system each self-forming one module, and is arranged on respectively on described sledge seat.
The advantage that the utility model has and good effect are: adopt continuous injection allocation and on-line curing technique, Novel airfoil bilayer is adopted to stir and Inner eycle technique, curing time can be foreshortened to 40 minutes, improve polymer mother liquor slaking efficiency, improve the utilization rate of equipment; Decrease weight of equipment and floor space; Be integrated with dispersion grinding, pipeline Agitation and mixing technique, overcome " flake " and " agglomerate " phenomenon, improve polymer mother liquor quality; Adopt the design of modularization sledge formula, compact conformation, can save platform space and public resource.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-feeding system, 2-dispersing and dissolving system, 3-aging system, 4-high pressure injection system;
11-stock chest, 12-screw(-type) feeder, 13-blower fan, 14-Venturi tube, 15-ball valve, 16-electronic Cutoff ball valve, 17-pressure transmitter, 18-strainer, 19-electromagnetic flowmeter, 20-electric control valve, 21-pigment mixing head, 22-dissolving tank agitator, 23-dissolving tank, 24-grinding pump, 25-one way valve, 26-conveying screw rod pump, 27-pipe stirrer, 28-static mixer, 29-low pressure dosing water supply line, 291-one-level water supply line; 292-secondary water supply line; 30-vertical circulation screw pump, 31-slaking jar agitator, 32-slaking tank, 33-feeding screw pump, 34-duplex strainer, 35-high pressure polymer-injecting pump, 36-sampler, 37-high pressure static blender; 38-high pressure dosing water supply line; 39-chemical agent supply line; 40-inject pipeline;
41-polymer dry powder, the dosing of 42-low pressure is supplied water, 43-chemical agent, and the dosing of 44-high pressure is supplied water, 45-1# well or the aboveground layer of target, 46-2# well or targeted downhole layer.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of offshore oilfield polymer displacement of reservoir oil polymer solution preparation and injected system, comprise the feeding system 1, dispersing and dissolving system 2, aging system 3 and the high pressure injection system 4 that connect successively; Described feeding system 1 comprises the stock chest 11, screw(-type) feeder 12 and the Venturi tube 14 that connect successively, and described Venturi tube 14 is also connected with blower fan 13; Described dispersing and dissolving system 2 comprises the pigment mixing head 21, dissolving tank 23, grinding pump 24, one way valve 25, conveying screw rod pump 26, pipe stirrer 27 and the static mixer 28 that connect successively; Dissolving tank agitator 22 is provided with in described dissolving tank 23; Described pigment mixing head 21 is connected respectively with the one-level water supply line 291 of described Venturi tube 14 and low pressure dosing; Connect described one way valve 25 to be connected with the secondary water supply line 292 of low pressure dosing with the pipeline of described conveying screw rod pump 26; Described aging system 3 comprises the slaking tank 32, feeding screw pump 33 and the duplex strainer 34 that connect successively; Slaking jar agitator 31 is provided with in described slaking tank 32; The bottom of described slaking tank 32 is connected with described static mixer 28, is provided with vertical circulation screw pump 30 outside described slaking tank 32; Described high pressure injection system 4 comprises the high pressure polymer-injecting pump 35, high pressure static blender 37 and the injection pipeline 40 that connect successively, connect described high pressure polymer-injecting pump 35 to be connected with high pressure dosing water supply line 38 with the pipeline of described high pressure static blender 37, described high pressure polymer-injecting pump 35 is connected with described duplex strainer 34; In the exit of described high pressure polymer-injecting pump 35, on the exit of described high pressure static blender 37 and the outlet conduit of described duplex strainer 34, be respectively provided with a sampler 36.
In the present embodiment, described high pressure dosing water supply line 38 is connected with chemical agent supply line 39.Described slaking jar agitator 31 is provided with double-layer paddle.Described one-level water supply line 291 and described secondary water supply line 292 are divided into by same low pressure dosing water supply line 29, and described low pressure dosing water supply line 29 is provided with ball valve 15, electronic Cutoff ball valve 16, pressure transmitter 17 and strainer 18 successively along water supply direction; Described one-level water supply line 291 and described secondary water supply line 292 are provided with electromagnetic flowmeter 19 and electric control valve 20 successively along water supply direction.Described injection pipeline 40 has two at least.This system is provided with sledge seat, described feeding system 1, described dispersing and dissolving system 2, described aging system 3 and described high pressure injection system 4 each self-forming one module, and is arranged on respectively on described sledge seat.
The operating principle of the present embodiment:
In feeding system 1, polymer dry powder 41 is manually added to stock chest 11 by operating personnel, carries out discharge quantity and accurately controls, and be delivered to Venturi tube 14 by screw(-type) feeder 12.Under blower fan 13 Wind power propelling, the polymer dry powder 41 entering Venturi tube 14 is delivered to pigment mixing head 21 charging aperture of dispersing and dissolving system 2 along pipeline.In dispersing and dissolving system 2, the low pressure dosing that platform is sent here supplies water 42 after electronic shut-off valve 16, strainer 18, is divided into two-stage and supplies water.One-level supplies water after electromagnetic flowmeter 19 measures and electric control valve 20 regulates, and enters pigment mixing head 21 water inlet, enters dissolving tank 23 after mixing for the first time with polymer dry powder 41, under dissolving tank agitator 22 acts on, carry out degree of depth dispersing and dissolving.After dissolving tank 23 liquid level reaches setting value, start grinding pump 24, fully grind, mix, form uniform high concentration polymer solution.Secondary supplies water after electromagnetic flowmeter metering 19 and electric control valve 20 regulate, and with the polymer solution mixed diluting again through grinding pump 24 Outlet check valves 25, forms the polymer mother liquor of setting concentration.By conveying screw rod pump 26 supercharging, after pipe stirrer 27 fully mixes with static mixer 28, enter bottom aging system 3 slaking tank 32.In high-efficiency aging system 3, polymer mother liquor carries out degree of depth slaking under the double action of slaking jar agitator 31 and vertical circulation screw pump 30.After the liquid level in slaking tank 32 reaches setting value, start feeding screw pump 33, again supercharging is carried out to polymer solution, after duplex strainer 34, is delivered to high pressure injection system 4 high pressure polymer-injecting pump 35 entrance.In high pressure injection system 4, polymer mother liquor is after high pressure polymer-injecting pump 35 supercharging, electromagnetic flowmeter metering, the high pressure dosing sent here with platform is supplied water 44 mixed dilutings, forms the polymer target liquid meeting Injection Well technical indicator after high pressure static blender 37 mixes.According to the requirement of the many wells of a pump or layered polymer injection, polymer target liquid is divided into two strands, after electromagnetic flowmeter metering and motorized adjustment valve regulation, injects 1# well 45 and 2# well 46, or the injection aboveground layer 45 of target and targeted downhole layer 46.When needs carry out profile control operation, various chemical agent 43 adds high pressure injection system 4 by spare interface, injects target well with polymer target liquid.
The present embodiment only describes the utility model basic composition structure and working principle.During viscous crude field technique of polymer flooding exploitation at sea and scene are applied, can according to the urban d evelopment of oil reservoir scheme and technical indicator, the utility model is expanded, as increased each devices in system quantity, expanding equipment capacity, adopt the many wells of a pump, layered polymer injection, poly-in order to realize many well groups scale note.
Although be described preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection domain of the present utility model.
Claims (6)
1. offshore oilfield polymer displacement of reservoir oil polymer solution preparation and an injected system, is characterized in that, comprises the feeding system, dispersing and dissolving system, aging system and the high pressure injection system that connect successively;
Described feeding system comprises the stock chest, screw(-type) feeder and the Venturi tube that connect successively, and described Venturi tube is also connected with blower fan;
Described dispersing and dissolving system comprises the pigment mixing head, dissolving tank, grinding pump, one way valve, conveying screw rod pump, pipe stirrer and the static mixer that connect successively; Dissolving tank agitator is provided with in described dissolving tank; Described pigment mixing head is connected respectively with the one-level water supply line of described Venturi tube and low pressure dosing; Connect described one way valve to be connected with the secondary water supply line of low pressure dosing with the pipeline of described conveying screw rod pump;
Described aging system comprises the slaking tank, feeding screw pump and the duplex strainer that connect successively; Slaking jar agitator is provided with in described slaking tank; The bottom of described slaking tank is connected with described static mixer, is provided with vertical circulation screw pump outside described slaking tank;
Described high pressure injection system comprises the high pressure polymer-injecting pump, high pressure static blender and the injection pipeline that connect successively, connect described high pressure polymer-injecting pump to be connected with high pressure dosing water supply line with the pipeline of described high pressure static blender, described high pressure polymer-injecting pump is connected with described duplex strainer; In the exit of described high pressure polymer-injecting pump, on the exit of described high pressure static blender and the outlet conduit of described duplex strainer, be respectively provided with a sampler.
2. offshore oilfield polymer displacement of reservoir oil polymer solution preparation according to claim 1 and injected system, is characterized in that, described high pressure dosing water supply line is connected with chemical agent supply line.
3. offshore oilfield polymer displacement of reservoir oil polymer solution preparation according to claim 1 and injected system, is characterized in that, described slaking jar agitator is provided with double-layer paddle.
4. offshore oilfield polymer displacement of reservoir oil polymer solution preparation according to claim 1 and injected system, it is characterized in that, described one-level water supply line and described secondary water supply line are divided into by same low pressure dosing water supply line, and described low pressure dosing water supply line is provided with ball valve, electronic Cutoff ball valve, pressure transmitter and strainer successively along water supply direction; Described one-level water supply line and described secondary water supply line are provided with electromagnetic flowmeter and electric control valve successively along water supply direction.
5. offshore oilfield polymer displacement of reservoir oil polymer solution preparation according to claim 1 and injected system, is characterized in that, described injection pipeline has two at least.
6. offshore oilfield polymer displacement of reservoir oil polymer solution preparation according to claim 1 and injected system, it is characterized in that, this system is provided with sledge seat, described feeding system, described dispersing and dissolving system, described aging system and described high pressure injection system each self-forming one module, and be arranged on respectively on described sledge seat.
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| CN105032221A (en) * | 2015-07-14 | 2015-11-11 | 山东源根化学技术应用研究院 | Water-soluble polymer dynamic controllable variable continuous online dissolution production system |
| CN105545268A (en) * | 2015-12-30 | 2016-05-04 | 中国石油天然气股份有限公司 | Method for increasing microorganism flooding reservoir driving pressure differential |
| CN105749795A (en) * | 2016-03-23 | 2016-07-13 | 中国石油天然气股份有限公司 | Solution stirring equipment and liquid mixing system for in-depth profile control and displacement |
| CN105756638A (en) * | 2016-04-14 | 2016-07-13 | 河南正佳能源环保股份有限公司 | System for rapidly dispersing and diluting powder polymer in offshore or alpine or fault-block oil field |
| CN107701161A (en) * | 2017-10-10 | 2018-02-16 | 中石化四机石油机械有限公司 | A kind of mixture pumping system and its device |
| CN108868714A (en) * | 2017-05-08 | 2018-11-23 | 中国石油化工股份有限公司 | Chemical solution speed matches device and method |
| CN109209322A (en) * | 2018-09-05 | 2019-01-15 | 大庆油田有限责任公司 | A kind of polymer automation feed liquid method meeting high discharge capacity pressure break injection demand |
| CN109723416A (en) * | 2018-12-28 | 2019-05-07 | 德州学院 | A kind of hydraulic profile control injection pump hello liquid system |
| CN111396009A (en) * | 2020-04-21 | 2020-07-10 | 信达科创（唐山）石油设备有限公司 | Integrated composite overweight injection system and working method thereof |
| CN112081566A (en) * | 2020-09-30 | 2020-12-15 | 东北石油大学 | Online injection method and equipment for oilfield inorganic gel profile control and flooding agent |
| CN113351087A (en) * | 2020-08-24 | 2021-09-07 | 中海油能源发展股份有限公司 | Experimental device and experimental method for simulating offshore polymerization process flow |
| CN114425266A (en) * | 2022-01-19 | 2022-05-03 | 胜利油田胜机石油装备有限公司 | Control system and control method for heterogeneous polymer dispersing and dissolving device |
| CN114618366A (en) * | 2020-12-11 | 2022-06-14 | 中国石油天然气股份有限公司 | Polymer curing device and curing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105032221A (en) * | 2015-07-14 | 2015-11-11 | 山东源根化学技术应用研究院 | Water-soluble polymer dynamic controllable variable continuous online dissolution production system |
| CN105545268A (en) * | 2015-12-30 | 2016-05-04 | 中国石油天然气股份有限公司 | Method for increasing microorganism flooding reservoir driving pressure differential |
| CN105545268B (en) * | 2015-12-30 | 2018-11-16 | 中国石油天然气股份有限公司 | The method for improving microbial oil displacement hiding driving pressure difference |
| CN105749795A (en) * | 2016-03-23 | 2016-07-13 | 中国石油天然气股份有限公司 | Solution stirring equipment and liquid mixing system for in-depth profile control and displacement |
| CN105756638A (en) * | 2016-04-14 | 2016-07-13 | 河南正佳能源环保股份有限公司 | System for rapidly dispersing and diluting powder polymer in offshore or alpine or fault-block oil field |
| WO2017177475A1 (en) * | 2016-04-14 | 2017-10-19 | 河南正佳能源环保股份有限公司 | Quick powder polymer dispersion and dilution system for offshore or alpine or fault-block oil field |
| CN108868714A (en) * | 2017-05-08 | 2018-11-23 | 中国石油化工股份有限公司 | Chemical solution speed matches device and method |
| CN107701161A (en) * | 2017-10-10 | 2018-02-16 | 中石化四机石油机械有限公司 | A kind of mixture pumping system and its device |
| CN109209322A (en) * | 2018-09-05 | 2019-01-15 | 大庆油田有限责任公司 | A kind of polymer automation feed liquid method meeting high discharge capacity pressure break injection demand |
| CN109723416A (en) * | 2018-12-28 | 2019-05-07 | 德州学院 | A kind of hydraulic profile control injection pump hello liquid system |
| CN111396009A (en) * | 2020-04-21 | 2020-07-10 | 信达科创（唐山）石油设备有限公司 | Integrated composite overweight injection system and working method thereof |
| CN111396009B (en) * | 2020-04-21 | 2023-12-12 | 信达科创（唐山）石油设备有限公司 | Integrated composite overweight injection system and working method thereof |
| CN113351087A (en) * | 2020-08-24 | 2021-09-07 | 中海油能源发展股份有限公司 | Experimental device and experimental method for simulating offshore polymerization process flow |
| CN112081566A (en) * | 2020-09-30 | 2020-12-15 | 东北石油大学 | Online injection method and equipment for oilfield inorganic gel profile control and flooding agent |
| CN112081566B (en) * | 2020-09-30 | 2023-08-22 | 东北石油大学 | On-line injection method and equipment for inorganic gel profile control agent in oil field |
| CN114618366A (en) * | 2020-12-11 | 2022-06-14 | 中国石油天然气股份有限公司 | Polymer curing device and curing method |
| CN114425266A (en) * | 2022-01-19 | 2022-05-03 | 胜利油田胜机石油装备有限公司 | Control system and control method for heterogeneous polymer dispersing and dissolving device |
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Effective date of registration: 20161229 Address after: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6 Patentee after: CNOOC Energy Technology Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Energy Technology Co., Ltd. |