CN105041279A - Operation method capable of achieving tertiary recovery injection distribution system - Google Patents
Operation method capable of achieving tertiary recovery injection distribution system Download PDFInfo
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- CN105041279A CN105041279A CN201510448437.6A CN201510448437A CN105041279A CN 105041279 A CN105041279 A CN 105041279A CN 201510448437 A CN201510448437 A CN 201510448437A CN 105041279 A CN105041279 A CN 105041279A
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Abstract
The invention provides an operation method capable of achieving a tertiary recovery injection distribution system, which comprises 8 unit modules, a water storage unit, an additive adding unit, a scattered dissolved curing unit, a feeding unit, an injection unit and a skid-mounted room, wherein the water storage unit comprises a water storage tank and an aeration device, the additive adding unit comprises a dosing pump, a liquid storage tank, the scattered dissolved curing unit comprises a feed hopper, a storage hopper, a level gage, an inserting valve, a helical feeder, a Venturi mixer, a metering feeder, a digestion tank, a centrifugal pump, a flow gauge and a hand-operated valve, the feeding unit comprises a helical pump, a filter, a safety valve, a pressure gauge assembly, a pressure sensor and a hand-operated valve, the injection unit comprises a polymer injection pump and a water supply pump and a polymer solution high pressure flow regulator, and the skid-mounted room comprises a scattered dissolved room, a feeding pump room and a polymer injection pump room, and uses a module design. Various skid blocks and equipment in skid-mounted camping rooms are assembled and debugged in a plant, and a skid-mounted injection distribution device can be rapidly carried to another one block to carry out polymer flooding technology after polymer flooding technology in a certain block of oilfield is completed in 2-3 years.
Description
Technical field
The invention belongs to petroleum engineering technical field, especially relates to the method for operating realizing tertiary oil recovery injection distribution system.
Background technology
Oil exploitation can be divided into three phases, and primary oil recovery relies on stratum energy to carry out flow production; Oil reservoir energy is augmented by the method for artificial recharge or gas injection after stratum energy release, maintaining strata pressure makes crude oil be exploited continuously, be referred to as secondary oil recovery. after secondary oil recovery carries out decades, remaining oil is caught with discontinuous oil clot in reservoir rocks hole by circle, now moisture too high in Produced Liquid, for a big chunk crude oil can only rely on other physics and chemistry method to exploit, such exploitation is referred to as tertiary oil recovery.To the investigation display that 82 waterflooding extraction districts of China's 13 main oilfield carry out, current produce oil water content reaches more than 90%, therefore carries out tertiary oil recovery extremely urgent.Owing to adopting tertiary oil recovery method greatly can improve recovery ratio, the recoverable reserves of increase is equivalent to 56% of the current remaining reserves in the whole nation, if this Potential model out, the recoverable reserves being equivalent to China doubles above.Develop the only way which must be passed that tertiary oil recovery is China's oil exploitation, the tertiary oil recovery equipment on market is single equipment or fixed mode single template, and manufacturing cost is high, and the time cycle is long, and not capable of circulationly causes great waste for this reason.
Summary of the invention
In view of this, the invention is intended to the method for operating proposing to realize tertiary oil recovery injection distribution system, long to solve the Installation and Debugging cycle in tertiary oil recovery process, the problem that utilization ratio of device is low.
For achieving the above object, the technical scheme of the invention is achieved in that the method for operating realizing tertiary oil recovery injection distribution system, comprise water cell, adjuvant add unit, dispersing and dissolving slaking unit, feeding unit, injection unit, automatic control unit, monitoring unit, sledge dress room, the wherein water cell course of work: receive sewage plant water and be stored in water tank, after aerator aeration, part low pressure sewage is for dispersing and dissolving unit prepared polymer solution, and another part low pressure sewage is for water mixing dilute polymer solution; Assistant agent adds cell operation process: carry out mixture with polymer dry powder again add a certain amount of stabilizing agent, bactericide and pre-oxidation agent in the water that water cell stores after; Dispersing and dissolving slaking cell operation process: polymer dry powder adopts manual type to add in the storage bin hopper of dissolving, curing unit, dissolving, curing unit accurately controls powder dropping amount by metering feeder, automatically mix with the constant current sewage after aeration, be mixed with high concentration polymer mother liquor, in the digester of slaking unit, carry out stirring slaking; Feeding cell operation process: by polymer solution good for the slaking of dissolving, curing unit, be transported to injection unit by screw pump; The injection unit course of work: carry the polymer mother liquor of coming through feeding unit, be mixed into individual well in polymer-injecting pump front end through static mixer with the low pressure sewage come by supply-water pump and inject aimed concn, and being delivered on single well pipeline after being boosted by polymer-injecting pump, the polymer flow rate adjuster through installing is undertaken injecting each individual well by the injection allocation amount of each well.
Further, described dispersing and dissolving slaking unit, the process for preparation of polymer solution adopts automatic control mode.
Further, described feeding unit adopts constant voltage automatically to control.
Further, described adjuvant adds unit fluid reservoir band mixer and content gauge.
Relative to prior art, the tertiary oil recovery injection allocation equipment described in the invention has following advantage:
(1) method of operating realizing tertiary oil recovery injection distribution system of the present invention, adopt the design of sledge blocking, each sledge block and sledge dress mobile field camp in equipment in factory assembly and adjustment complete, only need simple lifting at the scene, to be fixingly connected with peripheral manifold, can put into operation, cycle can shorten 1/2 ~ 1/3 time, and convenient in carrying.
(2) reuse ratio of tertiary oil recovery injection allocation apparatus of the present invention is high: after oil field a certain block polymer displacement of reservoir oil technique completed in 2 ~ 3 years, and skid-mounted polymer injection allocation apparatus can be moved another block fast and implement polymer displacement of reservoir oil technique.
Accompanying drawing explanation
The accompanying drawing of the part of formation the invention is used to provide the further understanding to the invention, and the schematic description and description of the invention, for explaining the invention, does not form the improper restriction to the invention.In the accompanying drawings:
Fig. 1 is the operational flowchart described in the embodiment of the present invention.
Description of reference numerals:
1-sledge dress room, 2-water cell, 3-adjuvant adds unit, and 4-dispersing and dissolving slaking unit, 5-feeds unit, 6-injection unit, 7-automatic control unit, 8-monitoring unit.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the invention and the feature in embodiment can combine mutually.
The invention is described in detail below in conjunction with embodiment.
Realize the method for operating of tertiary oil recovery injection distribution system, comprise water cell 2, adjuvant add unit 3, dispersing and dissolving slaking unit 4, feeding unit 5, injection unit 6, automatic control unit 7, monitoring unit 8, sledge dress room 1, wherein water cell 2 course of work: receive sewage plant water and be stored in water tank, after aerator aeration, part low pressure sewage is for dispersing and dissolving unit prepared polymer solution, and another part low pressure sewage is for water mixing dilute polymer solution; Assistant agent adds unit 3 course of work: carry out mixture with polymer dry powder again add a certain amount of stabilizing agent, bactericide and pre-oxidation agent in the water that water cell 2 stores after; Dispersing and dissolving slaking cell operation 4 process: polymer dry powder adopts manual type to add in the storage bin hopper of dissolving, curing unit 4, dissolving, curing unit 4 accurately controls powder dropping amount by metering feeder, automatically mix with the constant current sewage after aeration, be mixed with high concentration polymer mother liquor, in the digester of slaking unit, carry out stirring slaking; Feeding unit 5 course of work: by polymer solution good for dissolving, curing unit 4 slaking, be transported to injection unit 6 by screw pump; Injection unit 6 course of work: carry the polymer mother liquor of coming through feeding unit 5, be mixed into individual well in polymer-injecting pump front end through static mixer with the low pressure sewage come by supply-water pump and inject aimed concn, and being delivered on single well pipeline after being boosted by polymer-injecting pump, the polymer flow rate adjuster through installing is undertaken injecting each individual well by the injection allocation amount of each well.
Dispersing and dissolving slaking unit 4, the process for preparation of polymer solution adopts automatic control mode.
Feeding unit 5 adopts constant voltage automatically to control.
Adjuvant adds unit 3 fluid reservoir band mixer and content gauge.
Automated condtrol unit 7 is according to allocation process, and a whole set of sledge dress injecting polymer device is except dosing and high head injection pump start and stop adopt manual mode of operation, and miscellaneous equipment all can realize automatic start-stop.The automation technolo control unit of package unit adopts Distributed Control System mode-centralized management decentralised control, controls automatically and manually running of site plant.
Automation technolo control unit adopts the control element such as computer, programmable logic controller (PLC), frequency converter, contactor, relay, and high-quality monitoring device and valve composition DCS control system.Technical grade computer dynamic monitoring package unit running status, the operation conditions of equipment is shown in real time, fault diagnosis, data statistics, original record, and can set the main technologic parameters of device, mainly comprise the key process parameter such as polymer solution dosing flow, feeding pressure.Field control take PLC as control core, the service data that automatic reception setup parameter and on-the-spot various sensor gather, and the execution unit work of control device, the factor of any influential system stability all will by control system acquisition, and fault alarm, thus decrease the systematic jitters that human factor causes.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.
Claims (4)
1. realize the method for operating of tertiary oil recovery injection distribution system, it is characterized in that: comprise water cell, adjuvant adds unit, dispersing and dissolving slaking unit, feeding unit, injection unit, automatic control unit, monitoring unit, sledge dress room, described water cell comprises aqua storage tank 1 tool, aerator 3 and supporting flow process thereof, described adjuvant adds unit and comprises dosing pump 4, fluid reservoir 4 tool, described dispersing and dissolving slaking unit feeding unit comprises loading hopper 1 tool, storage bin hopper 1 tool, level-sensing device, push-pull valve, helical feeder, venturi mixer 2, metering feeder 2, digester 2 gathers, centrifugal pump, flow meter, hand-operated valve and supporting flow process thereof, described feeding unit comprises screw pump 2, strainer, safety valve, pressure meter assembly, pressure sensor, hand-operated valve and flow process thereof, described injection unit comprises 9 polymer-injecting pumps, 2 supply-water pumps, 39 polymer solution high pressure flow adjusters and supporting flow process, and described monitoring unit comprises by computer, display forms, and described sledge dress room is by dispersing and dissolving room, feeding pump house, polymer-injecting pump room forms, described water cell, adjuvant adds unit, dispersing and dissolving slaking unit, feeding unit, injection unit, automatic control unit, monitoring unit is placed in sledge dress room respectively, and described automatic control unit controls adjuvant and adds unit, dispersing and dissolving slaking unit, feeding unit, injection unit, described monitoring unit directly monitors automatic control unit, the described water cell course of work: receive sewage plant water and be stored in water tank, after aerator aeration, a part of low pressure sewage is for dispersing and dissolving unit prepared polymer solution, and another part low pressure sewage is for water mixing dilute polymer solution, described assistant agent adds cell operation process: carry out mixture with polymer dry powder again add a certain amount of stabilizing agent, bactericide and pre-oxidation agent in the water that water cell stores after, described dissolving, curing cell operation process: polymer dry powder adopts manual type to add in the storage bin hopper of dissolving, curing unit, described dissolving, curing unit accurately controls powder dropping amount by metering feeder, automatically mix with the constant current sewage after aeration, be mixed with high concentration polymer mother liquor, in the digester of slaking unit, carry out stirring slaking, feeding cell operation process: by polymer solution good for the slaking of dissolving, curing unit, be transported to injection unit by screw pump, the described injection unit course of work: carry the polymer mother liquor of coming through feeding unit, be mixed into individual well in polymer-injecting pump front end through static mixer with the low pressure sewage come by supply-water pump and inject aimed concn, and being delivered on single well pipeline after being boosted by polymer-injecting pump, the polymer flow rate adjuster through installing is undertaken injecting each individual well by the injection allocation amount of each well.
2. the method for operating realizing tertiary oil recovery injection distribution system according to claim 1, is characterized in that: described dispersing and dissolving slaking unit, and the process for preparation of polymer solution adopts automatic control mode.
3. the method for operating realizing tertiary oil recovery injection distribution system according to claim 1, is characterized in that: described feeding unit adopts constant voltage automatically to control.
4. the method for operating realizing tertiary oil recovery injection distribution system according to claim 1, is characterized in that: described adjuvant adds unit fluid reservoir band mixer and content gauge.
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| CN201510448437.6A CN105041279A (en) | 2015-07-27 | 2015-07-27 | Operation method capable of achieving tertiary recovery injection distribution system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106430355A (en) * | 2016-11-13 | 2017-02-22 | 安徽省环境科学研究院 | Powder form water treatment medicament pneumatic dosing system |
| CN109113696A (en) * | 2017-06-23 | 2019-01-01 | 中国石油天然气股份有限公司 | Chemical flooding ground injection method |
| CN109763801A (en) * | 2017-11-29 | 2019-05-17 | 中国石油天然气股份有限公司 | Skid-mounted modular polymer-surface binary flooding injection allocation device suitable for complex block oil field |
| CN111101909A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Water jet assisted oil recovery method for bottom of difficultly-used reservoir |
-
2015
- 2015-07-27 CN CN201510448437.6A patent/CN105041279A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106430355A (en) * | 2016-11-13 | 2017-02-22 | 安徽省环境科学研究院 | Powder form water treatment medicament pneumatic dosing system |
| CN109113696A (en) * | 2017-06-23 | 2019-01-01 | 中国石油天然气股份有限公司 | Chemical flooding ground injection method |
| CN109113696B (en) * | 2017-06-23 | 2022-01-04 | 中国石油天然气股份有限公司 | Chemical flooding ground injection method |
| CN109763801A (en) * | 2017-11-29 | 2019-05-17 | 中国石油天然气股份有限公司 | Skid-mounted modular polymer-surface binary flooding injection allocation device suitable for complex block oil field |
| CN111101909A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Water jet assisted oil recovery method for bottom of difficultly-used reservoir |
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