CN103790558A - Layered water injection production linkage coupling method - Google Patents
Layered water injection production linkage coupling method Download PDFInfo
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- CN103790558A CN103790558A CN201210432495.6A CN201210432495A CN103790558A CN 103790558 A CN103790558 A CN 103790558A CN 201210432495 A CN201210432495 A CN 201210432495A CN 103790558 A CN103790558 A CN 103790558A
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Abstract
The invention provides a layered water injection production linkage coupling method. The method includes the steps of firstly, selecting a water flooding well and a producing well; secondly, dividing oil reservoir layers according to the conditions of the water injection well and the producing well penetrating an oil reservoir; thirdly, when the oil reservoir layers are judged to be stable in energy and yield, injecting water while producing; fourthly, collecting oil reservoir exploitation indexes; fifthly, when oil production amount needs to be changed according to the oil reservoir exploitation indexes, adjusting oil producing equipment to control and adjust oil producing amount. By the method, the defects of independent layered water injection and independent oil production can be overcome effectively, corresponding layer communication conditions and water containing conditions can be learned about through monitoring and regulation and control, powerful technical support is provided for oil reservoir researches, and each layer of the oil reservoir can be exploited efficiently.
Description
Technical field
The present invention relates to oil-field flooding and oil production technology technology, particularly relate to a kind of demixing injection-production interlock coupling process method.
Background technology
Demixing injection-production technology is the important development approach of oil reservoir with multiple series of strata, and traditional method is well water filling, well recovery, and seperated layer water injection, oil production by layer are all implemented separately, and seperated layer water injection and oil production by layer do not build close links.As patent: CN201020280845.8 selective flow string can be realized the in the situation that of motionless full well flow string, complete and look in water blockoff layering or close layer and produce or selectively change producing zone position, and this selective flow string simplicity of design, operation are reliable, cost of production and labour intensity low.The method of adjustment of patent CN200710144495.5 oil field injection and extraction system in ultra-high water-containing period: injection and extraction system is optimized to adjustment, between noting between employing metaideophone, the end hole of the row of adopting forms the injection-production method of horizontal linear injection pattern, or metaideophone corner well forms the injection-production method of five-spot areal well pattern, or the end hole of metaideophone oil recovery well array forms the injection-production method of vertical linear injection pattern, or interval metaideophone corner well forms the injection-production method of block water filling unit, or the end hole of interval metaideophone oil recovery well array forms longitudinal two row's water injection wells and presss from both sides three mining oil wells, the injection-production method of the ranks shape injection pattern of adopting between middle ware note, it is between 160～190m that well spacing is adjusted to average distance.Patent CN200510043317.4 oil well: after conventional waterflooding technique shutoff high permeability zone, then take to inject bubble Lei Xier and maybe can improve the method for the expansion-resisting agent of earth formation, with less permeable layer water-taking efficiency in improving.Patented technology CN200910083119.9: be a kind of method that improves water drive recovery factor of thick positive rhythm reservoir, be specifically related to a kind of horizontal well gel deep flooding fluid and turn to and improve positive rhythm thick formation reservoir water drive method; At the high permeability zone horizontal well drilling of positive rhythm thick formation, inject gel by horizontal well to high permeability zone, in high permeability zone, set up the checkdam consistent with high permeability zone height.These technology are all only for water injection well or producing well, and the major defect of its existence is: seperated layer water injection, oil production by layer design separately, implement, and correlation is poor; Seperated layer water injection and oil production by layer, it is poor that note is adopted correspondence; Be unfavorable for understanding oil reservoir situation; Be unfavorable for balanced exploitation; Be unfavorable for supplementing stratum energy, affect oil recovery.We have invented a kind of new demixing injection-production interlock coupling process method for this reason, have solved above technical problem.
Summary of the invention
The object of this invention is to provide one and can implement efficiently to regulate and control the Technology of Layered Water Injection, can implement the demixing injection-production interlock coupling process method of selective layering oil production technology technology.
Object of the present invention can be achieved by the following technical measures: demixing injection-production interlock coupling process method, and this demixing injection-production interlock coupling process method comprises: step 1, choose water injection well and producing well; Step 2, the oil reservoir situation of passing according to this water injection well and this producing well, divides reservoir layer position; Step 3, when according to this oil reservoir layer position, while being judged as the layer of energy stabilization, stable yield, water filling on one side, on one side exploitation; Step 4, gathers oil reservoir development index; And step 5, when according to this oil reservoir development index, when judgement need to change oil production, regulate oil production equipment oil production is controlled and regulated.
Object of the present invention also can be achieved by the following technical measures:
This water injection well and this producing well are respectively through one or more oil recoveries, water filling layer position, these one or more oil recoveries, water filling layer position and this water injection well and the mutual UNICOM of this producing well.
In step 3, when according to this oil reservoir layer position, be judged as that height oozes, when high moisture, ultra-high water-containing layer, stop production, stop note.
In step 3, when according to this oil reservoir layer position, when the low pressure layer that be judged as energy shortage, yields poorly, the water filling makeup energy that builds the pressure.
In step 3, when according to this oil reservoir layer position, while being judged as energy abundance, pressure is high, output is high layer, carry out pressure release exploitation.
This oil reservoir development index comprises oilfield injection-production ratio, the strata pressure of oil reservoir, oil reservoir UNICOM situation and reservoir characteristics parameter.
In step 5, when according to this oil reservoir development index, when judgement need to change water injection rate, regulate water volume control device that should reservoir layer position is changed to water injection rate.
In step 5, when according to this oil reservoir development index, when judgement need to change water drive direction, change the water filling situation of this water injection well, change flow field state.
Demixing injection-production interlock coupling process method in the present invention, the result of studying according to oil reservoir and oil reservoir are to demixing injection-production technique requirement, seperated layer water injection and layering oil production technology are carried out to the method for integral process design and implementation, really realizing multilayer alternately notes and adopts coupling linkage, change flow location form, slow down water logging speed, reduce longitudinal interlayer interference, improve plane water drive swept volume.Demixing injection-production interlock coupling process method key is to realize every development parameters by demixing injection-production tubing string or demixing injection-production regulation and control tubing string: water injection pressure, water injection rate, oil production, formation pressure etc., grasp to greatest extent oil reservoir situation, expand injected water swept volume, realize stratum energy and supplement, improve reservoir withdrawal, improve oil recovery.The present invention compared with prior art tool has the following advantages: 1, realize the reservoir water raising stratum energy that builds the pressure; 2, realize pressure release exploitation; 3, understand the connection situation of the corresponding series of strata of oil-water well; 4, understand reservoir water status; 5, control implanted layer interlayer difference, realize interlayer and inject balanced; 6, production control interlayer difference, realizes producing zone balanced production; 7, change flow location form, improve note and adopt corresponding rate; 8, improve effective water injection rate, reduce invalid water injection rate; 9, realize multilayer and alternately note and adopt interlock, improve recovery ratio.Demixing injection-production interlock coupling process method in the present invention is by integrated design, at any time according to the change of oil reservoir situation, thereby change simultaneously the mode of production realize multilayer alternately note adopt coupling linkage, change flow location form, slow down water logging speed, reduce longitudinal interlayer interference, improve plane water drive swept volume.
Accompanying drawing explanation
Fig. 1 is the flow chart of a specific embodiment of demixing injection-production interlock coupling process method of the present invention.
The specific embodiment
For above and other object of the present invention, feature and advantage can be become apparent, cited below particularly go out preferred embodiment, and coordinate appended graphicly, be described in detail below.
As shown in Figure 1, Fig. 1 is the flow chart of a specific embodiment of demixing injection-production interlock coupling process method of the present invention.
In step 101, choose water injection well and producing well.In one embodiment, according to oil reservoir scheme, beat water injection well and producing well or select water injection well and the producing well developed.Water injection well and producing well are respectively through one or more oil recoveries, water filling layer position, and each layer of position may be all mutual UNICOM with water injection well and producing well.Flow process enters into step 102.
In step 102, the oil reservoir situation of passing according to water injection well and producing well, divides reservoir layer position.Distinguish for the reservoir layer position in different development phases or different physical property, generally can be divided into following four kinds of situations: for height ooze, high moisture, ultra-high water-containing layer, do not possess the layer of economic worth, flow process enters into step 103; For energy shortage, the low pressure layer that yields poorly, flow process enters into step 104; For the layer of energy stabilization, stable yield, flow process enters into step 105; For energy abundance, pressure is high, output is high layer, flow process enters into step 106.
In step 103, for height ooze, high moisture, ultra-high water-containing layer, do not possess the layer of economic worth, stop production, stop to note.Flow process enters into step 107.
In step 104, carry out the water filling makeup energy that builds the pressure for energy shortage, the low pressure layer that yields poorly, improve strata pressure, and do not produce, after reaching certain requirement, exploits again energy.Flow process enters into step 107.
In step 105, for carried out one side water filling of energy stabilization, stable yield, exploitation on one side, realizes balanced production.Flow process enters into step 107.
In step 106, for energy abundance, pressure is high, output is high layer, carry out pressure release exploitation.Flow process enters into step 107.
In step 107, gather oil reservoir development index.After same working system a period of time, or according to water injection well, the manufacturing parameter test of producing well, can recognize the situation of change of reservoir pressure, oil reservoir UNICOM situation, reservoir characteristics parameter (oil-containing, moisture etc.), and oilfield injection-production ratio, the strata pressure of oil reservoir, oil reservoir UNICOM situation, reservoir characteristics parameter (oil-containing, moisture etc.) etc., along with the progress of oil reservoir development, these development index can constantly be adjusted, at this moment will adjust at any time water injection rate and oil production, simultaneously in order better to reach oil-water displacement efficiency, may change water drive direction (especially many wells are adopted the situation of note), oil is driven to producing well to greatest extent.When according to oil reservoir development index, when judgement need to be adjusted water injection rate, flow process enters into step 108.When according to oil reservoir development index, when judgement need to be adjusted oil production, flow process enters into step 109.When according to oil reservoir development index, judge and need to adjust while changing water drive direction, flow process enters into step 110.
In step 108, change water injection rate, change water injection rate by the water volume control device that regulates corresponding reservoir layer position;
In step 109, change oil production, by regulating oil production equipment can oil production be controlled and be regulated.
In step 110, change water drive direction, adopt two notes, adopt three notes, two and adopt two notes, two and adopt many well groups such as three notes and close the situation that note is adopted for one, the water filling situation that can change water injection well (refers to the described situation of step 103-106,4 kinds of situations can be changed mutually), change flow field state.
Claims (8)
1. demixing injection-production interlock coupling process method, is characterized in that, this demixing injection-production interlock coupling process method comprises:
Step 1, chooses water injection well and producing well;
Step 2, the oil reservoir situation of passing according to this water injection well and this producing well, divides reservoir layer position;
Step 3, when according to this oil reservoir layer position, while being judged as the layer of energy stabilization, stable yield, water filling on one side, on one side exploitation;
Step 4, gathers oil reservoir development index; And
Step 5, when according to this oil reservoir development index, when judgement need to change oil production, regulates oil production equipment oil production is controlled and regulated.
2. demixing injection-production interlock coupling process method according to claim 1, it is characterized in that, this water injection well and this producing well are respectively through one or more oil recoveries, water filling layer position, these one or more oil recoveries, water filling layer position and this water injection well and the mutual UNICOM of this producing well.
3. demixing injection-production according to claim 1 interlock coupling process method, is characterized in that, in step 3, when according to this oil reservoir layer position, is judged as that height oozes, when high moisture, ultra-high water-containing layer, stops production, stops note.
4. demixing injection-production according to claim 1 interlock coupling process method, is characterized in that, in step 3, and when according to this oil reservoir layer position, when the low pressure layer that be judged as energy shortage, yields poorly, the water filling makeup energy that builds the pressure.
5. demixing injection-production according to claim 1 interlock coupling process method, is characterized in that, in step 3, when according to this oil reservoir layer position, while being judged as energy abundance, pressure is high, output is high layer, carries out pressure release exploitation.
6. demixing injection-production interlock coupling process method according to claim 1, is characterized in that, this oil reservoir development index comprises oilfield injection-production ratio, the strata pressure of oil reservoir, oil reservoir UNICOM situation and reservoir characteristics parameter.
7. demixing injection-production according to claim 1 interlock coupling process method, is characterized in that, in step 5, when according to this oil reservoir development index, when judgement need to change water injection rate, regulates water volume control device that should reservoir layer position is changed to water injection rate.
8. demixing injection-production interlock coupling process method according to claim 1, is characterized in that, in step 5, when according to this oil reservoir development index, when judgement need to change water drive direction, changes the water filling situation of this water injection well, changes flow field state.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234673A (en) * | 2014-07-30 | 2014-12-24 | 中国石油大学 | Stratified injection allocation method considering interlayer interference for multilayer oil reservoir |
| CN106801596A (en) * | 2015-11-26 | 2017-06-06 | 中国石油化工股份有限公司 | The new method that marine water injection well water filling interval is divided |
| CN107869332A (en) * | 2016-09-22 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of oil well monitor control system and method |
| CN108316898A (en) * | 2018-01-04 | 2018-07-24 | 中国石油天然气股份有限公司 | Oil field horizontal well segmented free corresponding control oil extraction process |
| CN110872942A (en) * | 2019-10-24 | 2020-03-10 | 中国石油化工股份有限公司 | Research method for contribution of different acting forces to recovery ratio in oil reservoir injection-production coupling mode |
| CN111088969A (en) * | 2018-10-23 | 2020-05-01 | 中国石油天然气股份有限公司 | Method and device for determining separate injection scheme of water injection well and storage medium |
| CN111749657A (en) * | 2019-03-29 | 2020-10-09 | 中国石油天然气股份有限公司 | Well pattern layered mining method and device |
| CN112112617A (en) * | 2019-06-04 | 2020-12-22 | 中国石油化工股份有限公司 | Method for developing thick-layer conglomerate oil reservoir by ectopic energy storage fracturing |
| CN113464098A (en) * | 2021-07-01 | 2021-10-01 | 中国科学院武汉岩土力学研究所 | CO (carbon monoxide)2Geological sequestration method and system thereof |
| CN113969770A (en) * | 2020-07-23 | 2022-01-25 | 中国石油化工股份有限公司 | High-pressure energy storage-body-to-body release type volume water drive development method for water body of edge water reservoir |
| CN117744897A (en) * | 2024-02-21 | 2024-03-22 | 中国石油大学(华东) | Layered injection and production interval combination and interval injection and production allocation integrated optimization method |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104234673A (en) * | 2014-07-30 | 2014-12-24 | 中国石油大学 | Stratified injection allocation method considering interlayer interference for multilayer oil reservoir |
| CN104234673B (en) * | 2014-07-30 | 2015-12-30 | 中国石油大学(华东) | Consider the stratified reservoir multi-zone flow regulating method of interlayer interference |
| CN106801596A (en) * | 2015-11-26 | 2017-06-06 | 中国石油化工股份有限公司 | The new method that marine water injection well water filling interval is divided |
| CN107869332A (en) * | 2016-09-22 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of oil well monitor control system and method |
| CN108316898A (en) * | 2018-01-04 | 2018-07-24 | 中国石油天然气股份有限公司 | Oil field horizontal well segmented free corresponding control oil extraction process |
| CN111088969B (en) * | 2018-10-23 | 2022-03-29 | 中国石油天然气股份有限公司 | Method and device for determining separate injection scheme of water injection well and storage medium |
| CN111088969A (en) * | 2018-10-23 | 2020-05-01 | 中国石油天然气股份有限公司 | Method and device for determining separate injection scheme of water injection well and storage medium |
| CN111749657A (en) * | 2019-03-29 | 2020-10-09 | 中国石油天然气股份有限公司 | Well pattern layered mining method and device |
| CN112112617A (en) * | 2019-06-04 | 2020-12-22 | 中国石油化工股份有限公司 | Method for developing thick-layer conglomerate oil reservoir by ectopic energy storage fracturing |
| CN112112617B (en) * | 2019-06-04 | 2024-03-01 | 中国石油化工股份有限公司 | Method for developing thick-layer sand conglomerate oil reservoir by ectopic energy storage fracturing |
| CN110872942B (en) * | 2019-10-24 | 2021-09-28 | 中国石油化工股份有限公司 | Research method for contribution of different acting forces to recovery ratio in oil reservoir injection-production coupling mode |
| CN110872942A (en) * | 2019-10-24 | 2020-03-10 | 中国石油化工股份有限公司 | Research method for contribution of different acting forces to recovery ratio in oil reservoir injection-production coupling mode |
| CN113969770A (en) * | 2020-07-23 | 2022-01-25 | 中国石油化工股份有限公司 | High-pressure energy storage-body-to-body release type volume water drive development method for water body of edge water reservoir |
| CN113464098A (en) * | 2021-07-01 | 2021-10-01 | 中国科学院武汉岩土力学研究所 | CO (carbon monoxide)2Geological sequestration method and system thereof |
| CN117744897A (en) * | 2024-02-21 | 2024-03-22 | 中国石油大学(华东) | Layered injection and production interval combination and interval injection and production allocation integrated optimization method |
| CN117744897B (en) * | 2024-02-21 | 2024-05-10 | 中国石油大学(华东) | Layered injection and production interval combination and interval injection and production allocation integrated optimization method |
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