CN103132965A - Single main pipe single well water distribution system applied to oil exploitation field and water distribution process thereof - Google Patents
Single main pipe single well water distribution system applied to oil exploitation field and water distribution process thereof Download PDFInfo
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- CN103132965A CN103132965A CN 201110445709 CN201110445709A CN103132965A CN 103132965 A CN103132965 A CN 103132965A CN 201110445709 CN201110445709 CN 201110445709 CN 201110445709 A CN201110445709 A CN 201110445709A CN 103132965 A CN103132965 A CN 103132965A
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Abstract
The invention discloses a single main pipe single well water distribution system applied to an oil exploitation field. The system mainly comprises a water injection station (2) connected with a water supply (1), a water injection main line (3) connected with the water injection station (2), and a water injection well (4) connected with the water injection main line (3). The invention further discloses a water distribution process based on the single main pipe single well water distribution system. According to the system, each well is provided with a water distribution chamber, and management is dispersed. But water injection branch pipes are short and are small in total quantity, so stratification testing is benefited, total investment can also be saved. The single main pipe single well water distribution system is suitable for an oil field which is multiple in the number of wells, adopts determinant to carry out well distribution, and is large in water injection quantity and area.
Description
Technical field
The present invention relates to a kind of be applied to field of petroleum exploitation go alone pipe individual well water distribution system and water distribution technique thereof.
Background technology
Water-injection efficiency is one of question of common concern in the performance analysis of oil field always.China adopts water-filling method to develop oil fields through the experience practice of decades, has formed more complete technology series and supporting technology.Oil-field flooding is in large scale, and flood pattern power consumption is huge, is the big power consumer in the oil field.The problem that flood pattern ubiquity efficient is low, energy consumption is high, energy waste is serious of domestic each elephant.According to statistics, the water filling power consumption accounts for 33%～56% of the total electricity consumption in oil field, and invalid water injecting consumption even surpasses 50% in the oil field that has.At present, the most domestic oil field has entered middle high water-cut stage exploitation, and will consume a large amount of electric energy every day to a large amount of water of underground injection, becomes the one of the main reasons that causes the oil field power tense.Along with the oil field enters high water-cut development period, water injection rate increases considerably, and the water filling power consumption is also significantly risen, and energy waste is more serious.
Water filling is a kind of effective maintenance strata pressure that generally adopts in oil field development, the important measures that improve rate of oil production and recovery ratio.When oil reservoir after a mining method is exploited limiting economic rate, perhaps in order to realize recovering the oil at a high speed at a certain section of primary oil recovery, just need in time manually inject displacing medium with makeup energy to oil reservoir.
For any onshore oil field, the oil before oil field development in reservoir, natural gas and formation water all are in high temperature, high pressure and relative static state.And after exploitation was dropped in the oil field, along with the continuous exploitation of the oil and natural gas in reservoir, bottom pressure will inevitably constantly descend, and reservoir pressure will certainly constantly descend along with the increase of development time simultaneously.
An oil field can only utilize the natural energy of oil reservoir to develop, and also can develop with the method that keeps pressure.And buriedly having certain natural energy and pressure at underground oil reservoir, in development process, formation pressure and natural energy just order about oily stream and flow to the shaft bottom, are lifted ground through pit shaft.Underground crude oil flow and lifting process in to be subject to the resistance such as fluid column weight and wall friction in the tiny hole of oil reservoir and pit shaft, if only depend on natural energy to recover the oil, the process of oil recovery is exactly the process that formation pressure and oil production all descend gradually.During greater than these resistances, oil well just can be realized flow production when formation pressure; When formation pressure can only overcome the hole resistance and not overcome pit shaft fluid column gravity and wall friction power, will exploit by oil pumping method; If formation pressure drops in the time of can not overcoming oil reservoir hole resistance, oil well energy is also just exhausted.The exhaustion of oil reservoir energy causes this oil reservoir remaining oil to exploit out, thereby affects the recovery ratio of oil reservoir, thereby must take measures the oil reservoir energy is replenished.
In the situation that other condition is identical, when adopting the method that keeps pressure, it is stronger that the formation process of exploitation will be carried out, and sometimes may the more oilreserves of extraction.And be in most of the cases to want many extraction reserves, just must Speeding up development speed, pay more resource and energy.When oil reservoir after a mining method is exploited limiting economic rate, perhaps in order to realize recovering the oil at a high speed at a certain section of primary oil recovery, need in time manually inject displacing medium with makeup energy to oil reservoir.Produced thus a problem: adopt what method to keep strata pressure.What the oil field was commonly used at present has two kinds: water filling and gas injection.There are many oil fields all to adopt method to oil-bearing stratum flooding both at home and abroad, keep strata pressure, to improve the oil well recovery ratio.Oil-field flooding is the systems engineering Xi of a complexity; it is take the water treatment of injected water and water stabilization as means; take the protection oil reservoir as the basis; utilize water injection equipment that the water that quality meets the requirements is injected oil reservoir from water injection well; reach the maintenance formation pressure; the formation oil displacement to producing well, is increased the recovery ratio of crude oil, realize the purpose of oilfield stable production volume increase.Can not only increase oil recovery factor to oil-bearing stratum flooding, improve development rate, but also can extend the oil flow production phase of oil well, be also the important channel that reduces crude oil cost.
The source of water is easy to solve on the one hand, and simultaneously water being injected oil reservoir is comparatively cheap comparatively speaking.Use water drive oil on the other hand from an oil reservoir, water is ideal in All Media.Certainly should see that also the water column itself in water injection well has certain hydraulic pressure, the extended capability that water has in oil reservoir makes oil reservoir keep higher stress level.The production capacity of oil well is vigorous like this, sufficient flush stage is just arranged, can be with the higher underground storage of higher rate of oil production extraction, keeping oil well pressure to be in all the time will make the natural gas that dissolves in underground crude oil can not deviate from a large number more than saturation pressure, make underground oil property constant, keep good flox condition, thereby be conducive to improve the oil recovery factor in oil field.
Water filling be except can make the oil field become hydraulic drives in the oil reservoir, thereby improves beyond oil recovery factor, can also improve the development rate in oil field.When the oil field oil-containing area was very large, due to the effect of blocking that effluxes well, the scope that general limit water has influence on was 2～3 row's wells.Therefore, the strata pressure of oilfield internal well array will reduce gradually, keep bottom pressure one regularly, and well yield just reduces, and oil field development speed is just low.In order to obtain higher rate of oil production, must carry out water filling in oil reservoir waist, center and limit section.
The most of oil field of China has all entered high water-cut stage, and year water injection rate is more than 1,000,000,000 sides, and the crude oil average moisture content is up to 85% left and right.Water filling is a kind of very important mining type of China's oil field development, and the purpose of water filling is the double action of performance displacement in flooding and additional stratum energy, impels the more crude oil of oil well output.In the middle and later periods of oil field development, water filling is the oilfield stimulation stable yields, keeps the prerequisite of normal production.
Oil field flood pattern is the important component part of oilfield surface engineering.Accordingly, oil-field flooding is one of most important work in field produces.In different production periods, the structural form of flood pattern and moving law are all different.The water filling network in an oil field is comprised of the pipeline of hundreds of kilometer length and various pumping plant and ancillary service often, and tens square kilometres of area coverings are hundreds of square kilometre even.A so large system, its power consumption is surprising.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, provide a kind of be applied to field of petroleum exploitation go alone pipe individual well water distribution system, this is applied to distributing room for water injection of every well of going alone pipe individual well water distribution system of field of petroleum exploitation, management disperses.But the water filling arm is short, and total negligible amounts, is conducive to zonal testing, and total investment also can be saved; Be suitable for the well number many, adopt the oil field that housing in row well spacing, water injection rate are large, area is larger.
Another object of the present invention is to provide a kind of based on above-mentioned water distribution technique of going alone pipe individual well water distribution system.
Purpose of the present invention is achieved through the following technical solutions: what be applied to field of petroleum exploitation goes alone pipe individual well water distribution system, mainly is made of the water-injection station that is connected with the water source and the water filling main line that is connected with water-injection station and the water injection well that is connected with the water filling main line.
Be provided with flow meter between described water-injection station and water source.
Be provided with distributing room for water injection on described water filling main line.
Be provided with water injecting pump on water filling main line between described distributing room for water injection and water-injection station.
Described water injecting pump and state on water filling main line between distributing room for water injection and be provided with flow meter.
Based on above-mentioned water distribution technique of going alone pipe individual well water distribution system, comprise the following steps:
(a) from the water source is treated reach the injection standard after, enter water-injection station;
(b) water-injection station to the water that enters measure, filter, buffering, sedimentation;
(c) enter through distributing room for water injection by the water filling main line;
(d) control, regulate, measure through distributing room for water injection, finally transport to water injection well and inject oil reservoir.
Described water from the water source comprises the surface water, underground water, seawater, oil-polluted water.
Described distributing room for water injection is the single well type distributing room for water injection.
Water in described water storage apparatus is pressed and delivered to water-injection station by water injecting pump.
In sum, the invention has the beneficial effects as follows: distributing room for water injection of every well, management disperses.But the water filling arm is short, and total negligible amounts, is conducive to zonal testing, and total investment also can be saved; Be suitable for the well number many, adopt the oil field that housing in row well spacing, water injection rate are large, area is larger.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment:
The present invention relates to be applied to field of petroleum exploitation go alone pipe individual well water distribution system as shown in Figure 1, mainly consisted of by the water-injection station 2 that is connected with water source 1 and the water filling main line 3 that is connected with water-injection station 2 and the water injection well 4 that is connected with water filling main line 3.
Be provided with flow meter 5 between described water-injection station 2 and water source 1.
Be provided with distributing room for water injection 6 on described water filling main line 3.
Be provided with water injecting pump 7 on water filling main line 3 between described distributing room for water injection 6 and water-injection station 2.
Described water injecting pump 7 and state on water filling main line 3 between distributing room for water injection 6 and be provided with flow meter 5.
Based on above-mentioned water distribution technique of going alone pipe individual well water distribution system, comprise the following steps:
(a) from water source 1 is treated reach the injection standard after, enter water-injection station 2;
(b) 7 pairs of water that enter of water-injection station measure, filter, buffering, sedimentation;
(c) enter through distributing room for water injection 4 by water filling main line 3;
(d) control, regulate, measure through distributing room for water injection 4, finally transport to water injection well and inject oil reservoir.
Described water from the water source comprises the surface water, underground water, seawater, oil-polluted water.
Described distributing room for water injection 4 is the single well type distributing room for water injection.
Water in described water storage apparatus 2 is pressed and delivered to water-injection station 7 by water injecting pump 6.
The above is only preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, and every foundation technical spirit of the present invention, any simple modification, equivalent variations that above embodiment is done are within all falling into protection scope of the present invention.
Claims (9)
1. be applied to going alone of field of petroleum exploitation and manage the individual well water distribution system, it is characterized in that, mainly consisted of by the water-injection station (2) that is connected with water source (1) and the water filling main line (3) that is connected with water-injection station (2) and the water injection well (4) that is connected with water filling main line (3).
According to claim 1 be applied to field of petroleum exploitation go alone pipe individual well water distribution system, it is characterized in that, be provided with flow meter (5) between described water-injection station (2) and water source (1).
According to claim 1 be applied to field of petroleum exploitation go alone pipe individual well water distribution system, it is characterized in that, be provided with distributing room for water injection (6) on described water filling main line (3).
According to claim 3 be applied to field of petroleum exploitation go alone pipe individual well water distribution system, it is characterized in that, be provided with water injecting pump (7) on the water filling main line (3) between described distributing room for water injection (6) and water-injection station (2).
According to claim 4 be applied to field of petroleum exploitation go alone pipe individual well water distribution system, it is characterized in that described water injecting pump (7) and state on water filling main line (3) between distributing room for water injection (6) and be provided with flow meter (5).
6. based on above-mentioned water distribution technique of going alone pipe individual well water distribution system, it is characterized in that, comprise the following steps:
(a) from water source (1) is treated reach the injection standard after, enter water-injection station (2);
(b) water-injection station (7) to the water that enters measure, filter, buffering, sedimentation;
(c) enter through distributing room for water injection (4) by water filling main line (3);
(d) control, regulate, measure through distributing room for water injection (4), finally transport to water injection well and inject oil reservoir.
7. water distribution technique according to claim 6, is characterized in that, described water from the water source comprises the surface water, underground water, seawater, oil-polluted water.
8. water distribution technique according to claim 6, is characterized in that, described distributing room for water injection (4) is the single well type distributing room for water injection.
9. water distribution technique according to claim 6, is characterized in that, the water in described water storage apparatus (2) is pressed and delivered to water-injection station (7) by water injecting pump (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110445709 CN103132965A (en) | 2011-11-29 | 2011-11-29 | Single main pipe single well water distribution system applied to oil exploitation field and water distribution process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110445709 CN103132965A (en) | 2011-11-29 | 2011-11-29 | Single main pipe single well water distribution system applied to oil exploitation field and water distribution process thereof |
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| CN103132965A true CN103132965A (en) | 2013-06-05 |
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| CN 201110445709 Pending CN103132965A (en) | 2011-11-29 | 2011-11-29 | Single main pipe single well water distribution system applied to oil exploitation field and water distribution process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110889241A (en) * | 2019-12-06 | 2020-03-17 | 中国石油化工股份有限公司 | Power cost investment and saving calculation method for realizing self-blowing |
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2011
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110889241A (en) * | 2019-12-06 | 2020-03-17 | 中国石油化工股份有限公司 | Power cost investment and saving calculation method for realizing self-blowing |
| CN110889241B (en) * | 2019-12-06 | 2023-04-07 | 中国石油化工股份有限公司 | Power cost investment and saving calculation method for realizing self-blowing |
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Application publication date: 20130605 |