CN1431383A - Injecting technique and equipments in production site for expelling oil by microbe - Google Patents
Injecting technique and equipments in production site for expelling oil by microbe Download PDFInfo
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- CN1431383A CN1431383A CN 03111810 CN03111810A CN1431383A CN 1431383 A CN1431383 A CN 1431383A CN 03111810 CN03111810 CN 03111810 CN 03111810 A CN03111810 A CN 03111810A CN 1431383 A CN1431383 A CN 1431383A
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Abstract
An in-situ injection technology for displacing oil with microbes includes screening and naturalizing microbes, fermenting in fermentor at microbe seed station, continuous fermenting of microbe seed liquid in the fermentor at water injection station of well, and injecting it into ground. Its apparatus is composed of material proportionally facilities, jet pump, bacterial liquid producing tank and injection pump. Its advantage is high oil-displacing effect.
Description
Technical field
The present invention relates to the produced on-site injection technology and the device of the oil production technology and the oil production equipment, particularly microbial oil displacement of petroleum industry, be applicable to oil reservoir and block with microbial oil displacement.
Technical background
Find an oil reservoir by petroleum geology exploration, generally be divided into three phases in the oil reservoir development process, the phase I is the elastic energy exploitation, also claims primary oil recovery.Because oil reservoir buries in the depths, stratum, has preserved natural reservoir energy, when these oil reservoirs were opened in drilling well, these natural energies just can make the fluid in the oil reservoir erupt to ground voluntarily.Second stage, waterflooding extraction also claims secondary oil recovery.Along with the carrying out of phase I exploitation, underground natural energy can consume gradually, up to underground energy shortage so that reservoir fluid is given rise to ground, at this moment just need be to the oil reservoir makeup energy, with continuation recovery of subterranean crude oil.Is a kind of oil reservoir energy supplement mode commonly used by water injection well to reservoir water.Phase III, tertiary oil recovery.Because viscosity ratio of oil and water is bigger, the good fluidity of water is in crude oil, and the water of injection is often broken through the capillary force of the viscosity resistance of underground crude oil and porous media easily and directly is advanced to oil well, causes well water to rise.So along with the carrying out of waterflooding extraction, the moisture content of producing well can be more and more higher, can not take the crude oil in the oil reservoir to ground and all produce water up to current.Yet still residual in the reservoir media have a large amount of crude oil not come out by exploitation as yet, and this just need take other measure to recover the oil.At present, Petroleum Engineer have studied multiple tertiary oil recovery technological measure, such as polymer displacement of reservoir oil tech, chemical active agent technology of reservoir sweep, ternary composite driving oil tech, foam flooding technology, steam flooding technology, combustion in situ etc., these tertiary oil recovery technologies have been brought into play important function for further improving oil recovery.The microbe oil production technology is grew up in nearly ten years a kind of novel, the tertiary oil recovery technology of environmental protection, microorganism used therefor has: pseudomonad (Pseudomonas), bacillus (Bacillus), micrococcus luteus (Micrococcus), rod bacillus (Corynebacterium), mycobacterium (Mycobacterium), arthrobacterium (Arthrobacter), clostridium (Clostridium), methagen (Methanobacterium), bacteroid (Bacteroidees), hot anaerobic bacteria (Thermoanaerobacter) etc., Microbial-flooding Technology is important content of microbe oil production technology, as: " rate of oil and gas recovery technology ", 1996, the 3rd writes, the 1st phase, " microorganism is improved recovery efficiency technique " that the 14-22 page or leaf is introduced in detail.This technology screening adapts to the bacterium of reservoir media, injects oil reservoir, growth metabolism in reservoir media by flood pattern, produce materials such as Bio-surface active, reduce the flow resistance of crude oil in porous media, thereby improve waterflood efficiency, reach the purpose that improves the final tar productivity of oil reservoir.With respect to polymer flooding wet goods technology, the advantage of Microbial-flooding Technology is apparent in view, and what at first it adopted is a kind of biologic product, and environmentally safe is a kind of green technology, has good social benefit.Secondly, Microbial-flooding Technology is with low cost, and the unit price of bacterium liquid has been lower than the price of other chemicals.Simultaneously, do not need large-scale injection flow process because the injection technology of Microbial-flooding Technology is simple, thus aspect the operating cost of implementing in technology also well below other tertiary oil recovery technology.Traditional Microbial-flooding Technology is at first to screen microorganism, produces a certain amount of bacterium liquid then in indoor fermentation tank, is transported to the scene by tank car, and subsurface deposit reinjects.Because the limitation that indoor fermentation tank is produced, the amount of bacteria of injection is a spot of with respect to the reservoir pore volume, and bacterium can only be worked among a small circle at oil reservoir, can not satisfy the needs of underground huge reservoir pore volume far away.And the transport amount is bigger, and this influences this The Application of Technology scale to a certain extent and enlarges.
Summary of the invention
The objective of the invention is to design and make the produced on-site injection technology and the device of the microbial oil displacement that can reduce production costs, overcome the deficiency that traditional Microbial-flooding Technology injection rate is few, microorganism can only local be worked and freight is high.Make this technology can significantly improve the amount of bacteria of injection, thereby improve microbial oil displacement spot effect, significantly reduced the haulage vehicle expense again, thereby further reduced technology running cost.
The present technique solution can reach above-mentioned purpose: the produced on-site injection technology of microbial oil displacement, screening or acclimated microorganism are placed on the fermentation cylinder for fermentation production of microbe seed station, near target reservoir water-injection station, set up microbial inoculum field production device and injected system, with the kind daughter bacteria liquid in the microbe station, be transported to the bacterium liquid process units relaying supervention ferment production of water-injection station, inject the stratum then.A kind of produced on-site injection device that is used for the mentioned microorganism displacement of reservoir oil has dosing device, transmission pump, jet pump, bacterium liquid production jar and injection pump, and the said equipment is connected with the water distribution system of water-injection station with pipeline.
The present invention has compared significant effect with traditional micro-organisms technology of reservoir sweep, at first is that the injection sewage with on-the-spot oil field is fermentation carrier, utilizes the heat of on-the-spot oilfield injection water to carry out on-the-spot bacterium final stage and amplifies and cultivate.Handle through ground flow and separate to come owing to the oilfield injection water oil-water mixture of extraction that generally all is producing well in the oil reservoir, possessed certain temperature, the present invention just utilizes these heats and does not need to build in addition heating system.In addition, as extensive Microbial-flooding Technology The field, the purity requirement of the bacterium liquid of injection is not high especially, so the present invention does not need to build in addition the disinfection system of production procedure, for The field provides feasibility.Technology of the present invention is looked designed output, and every round can be injected bacterium liquid 300m to oil reservoir
3About.Be that traditional microbial oil displacement technology is injected the several times of bacterium liquid or tens of times, thereby improve oil displacement efficiency.Simultaneously, utilize water-injection station to build a station, avoid employing large tank waggon and reduced the vehicle transport expense at mining site.Building a station and avoided building heating system and disinfection system again in the scene, has utilized the natural energy of oil-field brine, and construction cost is low.And produced on-site, implant operation simple and convenient management, reduced the running cost of project.
Description of drawings
Accompanying drawing is the installation procedure figure of produced on-site injection device of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description: the produced on-site injection technology of microbial oil displacement, screening or acclimated microorganism are placed on the fermentation cylinder for fermentation production of microbe seed station, near target reservoir water-injection station, set up microbial inoculum field production device and injected system, with the kind daughter bacteria liquid in the microbe station, be transported to the bacterium liquid process units relaying supervention ferment production of water-injection station, inject the stratum then.The present invention is a fermentation carrier with the injection water at scene, the sewage that injects the stratum is pumped into the microbial inoculum process units of water-injection station, calculating culture medium amount of substance through entering the respectively production jar of bacterium liquid process units after dissolving, will be planted daughter bacteria liquid again and be inoculated into each production jar.In the production of bacterium liquid, keep single production jar or a plurality of bacterium liquid of producing in the jar to obtain stirring or circulate, be incubated and the in good time air that replenishes; According to the water temperature in producing jar and the quantity of bacterial classification, if summer, fermentation time was just shorter, after the fermentation through 1 day, 2 days or a couple of days, inspection bacteria-checking liquid density situation when reaching design use standard, utilizes the flood pattern of water-injection station to be injected into the stratum.
A kind of produced on-site injection device that is used for microbial oil displacement, referring to accompanying drawing, this production injection device has dosing device 1, can be big jar or dosing chamber, transmission pump 2, jet pump 3, bacterium liquid production jar 4 and injection pump 5, and the said equipment is connected with the water distribution system of distributing room for water injection 6 with pipeline.Process units is produced a jar sewage filling line, batching sewage filling line, bacterium liquid production cycle pipeline and bacterium liquid filling line with being divided into being connected of water distribution system, and each pipeline all is communicated with distributing room for water injection 6, respectively has valve to control again.Production jar sewage filling line is communicated with production jar 4 by the front end sewer line of distributing room for water injection 6; Batching sewage filling line is communicated with dosing device 1 by the sewer line of distributing room for water injection 6; Bacterium liquid production cycle pipeline is made up of transmission pump 2, jet pump 3, production jar 4 etc., by pipeline dosing device 1 is communicated with transmission pump 2, jet pump 3, production jar 4, form circulation between making transmission pump 2, jet pump 3 and produce jars 4 by pipeline and by-pass valve control, between transmission pump 2 and jet pump 3 and the starting point of circulation line and end all establish by-pass valve control.It is single or multiple producing jars 4, during a plurality of uses, makes its serial or parallel connection, is illustrated as series system, by the production jar connection wastewater disposal basin 7 of bacterium liquid production cycle pipeline end and establish by-pass valve control.If the condition permission also can not established wastewater disposal basin 7, directly waste water is entered the place that the ditch perhaps can be discharged.When producing jar 4 parallel connections, each is produced the outlet of jar 4 valve is installed, and with a pipeline these production jar connection is got up again.Producing jar 4 can be the water tank or the newly-increased water pot of former water-injection station, designs insulation layer outside tank body.Bacterium liquid filling line is made up of by-pass valve control and injection pump 5, and by-pass valve control is located between injection pump 5 and the bacterium liquid production cycle pipeline, and this bacterium liquid filling line is connected on the front-end pipeline of by-pass valve control between transmission pump 2 and the jet pump 3.Before production, will plant daughter bacteria liquid by tank car from the bacterium station and be transported to the water-injection station that apparatus of the present invention are equipped with at the scene.To inject sewage introducing field production device, and a certain amount of culture medium material be sent into each in dosing device 1 dissolving back by transmission pump 2 produce jar 4.Kind daughter bacteria liquid in the tank car is inoculated into each by dosing device 1 and transmission pump 2 again produces jar 4,, play and stir and effect, replenish the required oxygen of bacterial growth simultaneously by jet pump 3 circulations.On-the-spot bacterial detection growing state regularly, apparent temperature situation and deciding, after the fermentation through 1 day, 2 days or a couple of days, bacterium liquid density can reach 10
7About individual/ml, at this moment just can be injected in the oil reservoir by distributing room for water injection 6 and go by injection pump 5.
Embodiment:
Select a restriction in the oil field, be difficult to carry out other tertiary oil recovery technology, carry out Microbial-flooding Technology again away from the block of bacterium liquid production base because of ground condition and reservoir condition.If all bacterium liquid is all transported to the scene from the production base car, freight volume is very big, therefore produces bacterium liquid at the scene, and the sewage that site of deployment is injected carries out afterbody bacterium liquid field lofting to be produced, and is transported to on-the-spot 1 side m like this
3Bacterium liquid can be through the setting-out ability acquisition several times of Site Design and even tens of times bacterium liquid.Concrete implementation step is as follows: during normal water filling, the water of water filling main line 8 directly enters distributing room for water injection 6, is assigned to each water injection well 9.Bacterium liquid is on-the-spot to be amplified when producing, and the culture medium that adding bacterium liquid is produced in dosing device 1 is introduced the oilfield injection water of water filling main line, sends into each by transmission pump 2 and produces jar 4.The kind daughter bacteria liquid that indoor Workshop Production is good is delivered to the scene with tank car, puts into dosing device 1, sends into each by transmission pump 2 and produces jar 4, finishes inoculation.To inoculate good production jar liquid by jet pump 3 and constantly circulate, and owing to produce the outer insulation layer of jar 4 tank bodies, can keep temperature substantially in 2-3 days time, the bacterial classification of access is at continuous growth and breeding.Because insert a large amount of bacterial classifications, the bacterial classification of access forms dominant microflora in culture systems, can suppress a large amount of breedings of assorted bacterium.Apparent temperature situation, process units circulation detect bacterium liquid density after 2-3 days, when bacterium liquid density reaches 10
7Individual/as during the ml left and right sides, to start injection pump 5 and will produce the bacterium liquid of getting well and be injected into the purpose well by distributing room for water injection 6.With this system can be repeatedly, produce repeatedly and inject, because it is remarkable to inject stratum a large amount of bacterium liquid oil displacement efficiency.
Claims (9)
1, the produced on-site injection technology of microbial oil displacement, screening or acclimated microorganism are placed on the fermentation cylinder for fermentation production of microbe seed station, it is characterized in that near the water-injection station target reservoir, set up microbial inoculum field production device and injected system, with the kind daughter bacteria liquid in the microbe station, be transported to the bacterium liquid process units relaying supervention ferment production of water-injection station, inject the stratum then.
2, the produced on-site injection technology of microbial oil displacement according to claim 1, it is characterized in that the production of bacterium liquid is that injection water with the scene is fermentation carrier, the sewage that injects the stratum is pumped into the microbial inoculum process units of water-injection station, calculate the culture medium amount of substance, through entering the respectively production jar of bacterium liquid process units after dissolving, will plant daughter bacteria liquid again and be inoculated into each production jar.
3, the produced on-site injection technology of microbial oil displacement according to claim 1 and 2 is characterized in that will keeping in the production of bacterium liquid the single bacterium liquid of producing in jar or a plurality of production jar to obtain stirring or circulation, be incubated also in good time additional air; According to the water temperature in producing jar and the quantity of bacterial classification, after the fermentation through 1 day, 2 days or a couple of days, the density situation of inspection bacteria-checking liquid.
4, the produced on-site injection technology of microbial oil displacement according to claim 3, the microbial inoculum that it is characterized in that produced on-site are to utilize the flood pattern of water-injection station or newly-built injected system to be injected into the stratum.
5, a kind of produced on-site injection device that is used for the microbial oil displacement of claim 1, it is characterized in that this production injection device has dosing device (1), transmission pump (2), jet pump (3), the production of bacterium liquid jar (4) and an injection pump (5), is connected with pipeline the said equipment with the water distribution system of water-injection station distributing room for water injection (6).
6, the produced on-site injection device of microbial oil displacement according to claim 5, it is characterized in that being divided into this production injection device and being connected of water distribution system a production jar sewage filling line, batching sewage filling line, bacterium liquid production cycle pipeline and bacterium liquid filling line, each pipeline all is communicated with distributing room for water injection (6), and valve control is respectively arranged again.
7, the produced on-site injection device of microbial oil displacement according to claim 6 is characterized in that production jar sewage filling line is communicated with production jar (4) by the front end sewer line of distributing room for water injection (6); Batching sewage filling line is communicated with dosing device (1) by the sewer line of distributing room for water injection 6; Bacterium liquid production cycle pipeline is made up of transmission pump (2), jet pump (3), production jar (4) etc., by pipeline dosing device (1) is communicated with transmission pump (2), jet pump (3), production jar (4), and make transmission pump (2), jet pump (3) and produce and form circulation between jar (4), between transmission pump (2) and jet pump (3) and the starting point and the end of circulation line all establish by-pass valve control.
8, the produced on-site injection device of microbial oil displacement according to claim 5, it is single or multiple it is characterized in that producing jar (4), during a plurality of use, makes its serial or parallel connection, jar by bacterium liquid production cycle pipeline end is established by-pass valve control, connects with wastewater disposal basin (7) or directly discharging; Producing jar (4) is the water tank or the newly-increased water pot of former water-injection station, and tank body designs insulation layer outward.
9, the produced on-site injection device of microbial oil displacement according to claim 6, it is characterized in that bacterium liquid filling line is made up of by-pass valve control and injection pump (5), by-pass valve control is located between injection pump (5) and the bacterium liquid production cycle pipeline, and this bacterium liquid filling line is connected on the front-end pipeline of by-pass valve control between transmission pump (2) and the jet pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111810 CN1431383A (en) | 2003-01-08 | 2003-01-08 | Injecting technique and equipments in production site for expelling oil by microbe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 03111810 CN1431383A (en) | 2003-01-08 | 2003-01-08 | Injecting technique and equipments in production site for expelling oil by microbe |
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| CN1431383A true CN1431383A (en) | 2003-07-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383768A (en) * | 2010-09-01 | 2012-03-21 | 中国石油天然气股份有限公司 | Two-phase multi-material online injection water-plugging profile regulating method and equipment |
| CN104234674A (en) * | 2013-06-21 | 2014-12-24 | 中国石油天然气股份有限公司 | Microbial displaced fluid circulation and ground fermentation method and device |
| CN104594862A (en) * | 2015-01-05 | 2015-05-06 | 西南石油大学 | Method of applying membrane bioreactor system to microbial oil production |
| 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 |
| CN109869120A (en) * | 2019-03-18 | 2019-06-11 | 中国石油化工股份有限公司 | The sand control back-up sand system of large cased well |
-
2003
- 2003-01-08 CN CN 03111810 patent/CN1431383A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383768A (en) * | 2010-09-01 | 2012-03-21 | 中国石油天然气股份有限公司 | Two-phase multi-material online injection water-plugging profile regulating method and equipment |
| CN102383768B (en) * | 2010-09-01 | 2014-06-04 | 中国石油天然气股份有限公司 | Two-phase multi-material online injection water-plugging profile regulating method and equipment |
| CN104234674A (en) * | 2013-06-21 | 2014-12-24 | 中国石油天然气股份有限公司 | Microbial displaced fluid circulation and ground fermentation method and device |
| CN104234674B (en) * | 2013-06-21 | 2016-08-10 | 中国石油天然气股份有限公司 | The method and device that the circulation of a kind of microbial oil displacement production fluid is fermented with ground |
| CN104594862A (en) * | 2015-01-05 | 2015-05-06 | 西南石油大学 | Method of applying membrane bioreactor system to microbial oil production |
| 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 |
| CN109869120A (en) * | 2019-03-18 | 2019-06-11 | 中国石油化工股份有限公司 | The sand control back-up sand system of large cased well |
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