阅读说明：本技术 一种激活油藏内部微生物产生封堵作用的分段式激活剂注入方式 (A kind of activation oil reservoir inside microorganism generates the segmented activator injection mode of plugging action ) 是由 王健伟 吴晓磊 柳泽深 池昌桥 于 2019-08-23 设计创作，主要内容包括：本发明公开了一种激活油藏内部微生物产生封堵作用的分段式激活剂的注入方式。本发明提供了分段式激活剂注入方法,包括如下步骤：向油田目标地层按照如下1)-4)的顺序分段注入由如下不同种类激活剂组成的分段式激活剂,形成主段塞：1)磷源激活剂；2)氮源激活剂；3)含有无机盐和微量元素激活剂；4)碳源激活剂；本发明采用分段注入不同组分的激活剂,使激活剂中的所有成分能够达到预定的目标位置形成一个完整的激活剂体系,成功的激活油藏内源功能微生物,提高微生物向封堵部位聚集的效率,从而发挥有效的堵水作用,提高原油采收率。(The invention discloses the injection modes that microorganism inside a kind of activation oil reservoir generates the segmented activator of plugging action.The present invention provides segmented activator injection methods, include the following steps: to oil field formation at target locations according to following 1) -4) sequential segment inject the segmented activator being made of following variety classes activator, form principal piece plug: 1) phosphorus source activator；2) nitrogen source activator；3) contain inorganic salts and microelement activator；4) carbon source activator；The present invention injects the activator of different component using segmentation, so that all the components in activator is reached scheduled target position and forms a complete activator system, the successfully activation endogenous functional microorganism of oil reservoir, improve the efficiency that microorganism assembles to closure site, to play effective plugging function, oil recovery factor is improved.)

1. a kind of segmented activator injection method, include the following steps: to oil field formation at target locations according to following 1) -4) sequence The segmented activator that segmentation injection is made of following variety classes activator, forms principal piece plug:

1) phosphorus source activator；Phosphorus source activator includes following solute: sodium phosphate and hypophosphorous acid are received；

2) nitrogen source activator；The nitrogen source activator includes following solute: glutamate and glutamic acid；

3) contain inorganic salts and microelement activator；Described containing inorganic salts and microelement activator includes following solute: Copper sulphate, ferric sulfate, calcium chloride and magnesium sulfate；

4) carbon source activator；The carbon source activator includes following solute: corn pulp and cornstarch.

2. according to the method described in claim 1, it is characterized by:

The various activator further include solvent；

The various activator are made of each solute and solvent；

The segmented activator by phosphorus source activator, the nitrogen source activator, described contain inorganic salts and microelement Activator and carbon source activator composition.

3. method according to claim 1 or 2, it is characterised in that:

Each solute is as follows in the mass volume ratio of the segmented activator in the various activator:

The sodium phosphate is 0.5% in the quality volumn concentration of the segmented activator,

The quality volumn concentration that the hypophosphorous acid is contained in the segmented activator is 1%；

The glutamate is 0.02% in the quality volumn concentration of the segmented activator；

The glutamic acid is 0.01% in the quality volumn concentration of the segmented activator；

The copper sulphate is 0.006% in the quality volumn concentration of the segmented activator；

The ferric sulfate is 0.03% in the quality volumn concentration of the segmented activator；

The calcium chloride is 0.03% in the quality volumn concentration of the segmented activator；

The magnesium sulfate is 0.03% in the quality volumn concentration of the segmented activator；

The corn pulp is 0.3% in the quality volumn concentration of the segmented activator；

The cornstarch is 0.5% in the quality volumn concentration of the segmented activator.

4. method according to claim 1 to 3, it is characterised in that:

Further include following steps before injecting phosphorus source activator: the oil field Xiang Suoshu formation at target locations injected clear water makees protective agent, Form preposed attributives.

5. method according to any one of claims 1-4, it is characterised in that:

Further include following steps after injecting the carbon source activator: formation at target locations injection Produced Liquid in the oil field Xiang Suoshu replaces Liquid forms and replaces slug.

6. any method in -5 according to claim 1, it is characterised in that: the oil field is middle high water cut oil field；

And/or the water content of the middle high water cut oil field is more than or equal to 40%.

7. method as claimed in any one of claims 1 to 6 improves the application inside oil reservoir in microorganism plugging action.

8. a kind of product for improving microorganism plugging action inside oil reservoir, including in method as claimed in any one of claims 1 to 6 The various activator of independent packaging.

9. segmented activator injection improves the application inside oil reservoir in microorganism plugging action；

The segmented activator injection be the phosphorus source activator being implanted sequentially in method as claimed in any one of claims 1 to 6, Nitrogen source activator contains inorganic salts and microelement activator and carbon source activator.

10. a kind of method for improving microorganism plugging action inside oil reservoir, including any the method for claim 1-6, are realized Improve microorganism plugging action inside oil reservoir.

Technical field

The present invention relates to belong to microorganism inside field of biotechnology more particularly to a kind of activation oil reservoir to generate plugging action Segmented activator injection mode.

Background technique

With the continuous exploitation of petroleum, domestic most of oil reservoir enters the mining phase of high water cut rate.It passes at present The method that system uses is to select chemical plugging agent to block the water-invaded region inside oil reservoir, however chemical plugging agent price is high Injection expensive, that effect is unstable and due to chemical substance leads to serious risk of environmental pollution.It is blocked using microorganism and is then had The features such as effective good, at low cost, environmentally protective is a kind of shutoff method for being worth being widely applied.Specifically, microorganism It blocks and refers to and will be injected into oil reservoir Thief zone position with the external source functional microorganism and its nutriment that produce polysaccharide, biomembrane, Functional microorganism is set to form biomembrane and produce polysaccharide, so that reducing reservoir pore rate carries out water blockoff, to improve oil recovery factor.

Currently, microorganism blocking technology there is no being applied well in middle high water-cut reservoir, reason is mainly Nutritional ingredient in various activator is mixed and is injected.Although operation is convenient in this way, do not account in this way To absorption, consumption and migration of the various nutritional ingredients in injection process, so that nutrients in activator can not be played efficiently The effect of matter is that oil pool microorganisms are sufficiently activated and effectively play plugging function.

Summary of the invention

In order to more effectively realize that microorganism blocks, the invention provides the following technical scheme:

The object of the present invention is to provide a kind of segmented activator injection methods.

Segmented activator injection method provided by the invention, includes the following steps: to oil field formation at target locations according to as follows 1) sequential segment -4) injects the segmented activator being made of following variety classes activator, forms principal piece plug:

1) phosphorus source activator；Phosphorus source activator includes following solute: sodium phosphate and hypophosphorous acid are received；

2) nitrogen source activator；The nitrogen source activator includes following solute: glutamate and glutamic acid；

3) contain inorganic salts and microelement activator；Described containing inorganic salts and microelement activator includes following molten Matter: calcium chloride, magnesium sulfate, ferric sulfate, copper sulphate；

4) carbon source activator；The carbon source activator includes following solute: corn pulp and cornstarch.

Above-mentioned glutamate specifically uses sodium glutamate, company: Beijing Baeyer enlightening biology skill in an embodiment of the present invention Art Co., Ltd article No.: DE0045.

In the above method, the various activator further include solvent；

The various activator are made of each solute and solvent；

The segmented activator is by phosphorus source activator, the nitrogen source activator, described containing inorganic salts and micro Element activator and carbon source activator composition.

In the above method, in the various activator each solute the segmented activator mass volume ratio such as Under:

The sodium phosphate is 0.5% in the quality volumn concentration of the segmented activator,

The quality volumn concentration that the hypophosphorous acid is contained in the segmented activator is 1%；

The glutamate is 0.02% in the quality volumn concentration of the segmented activator；

The glutamic acid is 0.01% in the quality volumn concentration of the segmented activator；

The copper sulphate is 0.006% in the quality volumn concentration of the segmented activator；

The ferric sulfate is 0.03% in the quality volumn concentration of the segmented activator；

The calcium chloride is 0.03% in the quality volumn concentration of the segmented activator；

The magnesium sulfate is 0.03% in the quality volumn concentration of the segmented activator.

The corn starch is 0.3% in the quality volumn concentration of the segmented activator；

The cornstarch is 0.5% in the quality volumn concentration of the segmented activator.

It further include following steps before injecting phosphorus source activator in the above method: the oil field Xiang Suoshu formation at target locations note Enter clear water and make protective agent, forms preposed attributives.

According to every kind of activator in comprehensive determining (the microbial profile control indoor simulation reality of the consumption on stratum and migration rule Test) number that every kind of activator accounts for segmented activator total volume V is calculated, it is in an embodiment of the present invention, specific as follows: described The injection rate of phosphorus source activator is 0.3 times of volume of the segmented activator；The injection rate of the nitrogen source activator is described 0.2 times of volume of segmented activator；The injection rate containing inorganic salts and microelement activator swashs for the segmented 0.2 times of volume of agent living；The injection rate of the carbon source activator is 0.3 times of volume of the segmented activator.

It further include following steps after injecting the carbon source activator in the above method: the oil field Xiang Suoshu formation at target locations note Enter Produced Liquid and make displacement fluid, is formed and replace slug.

In the above method, the oil field is middle high water cut oil field；

And/or the water content of the middle high water cut oil field is more than or equal to 40%.

Application inside above-mentioned raising oil reservoir in microorganism plugging action is also the scope of protection of the invention.

Another object of the present invention is to provide a kind of product of raising oil reservoir inside microorganism plugging action.

Product provided by the invention, the various activator including independent packaging in above-mentioned method.

It is also the model that the present invention protects that segmented activator injection, which improves the application inside oil reservoir in microorganism plugging action, It encloses；

The segmented activator injection is the phosphorus source activator being implanted sequentially in the above method, nitrogen source activator, contains Inorganic salts and microelement activator and carbon source activator.

3rd purpose of the invention is to provide a kind of method of raising oil reservoir inside microorganism plugging action.

Method provided by the invention, including above-mentioned segmented activator injection method are realized and improve microorganism inside oil reservoir Plugging action.

Microorganism plugging action is embodied in the crude oil water content for reducing the oil reservoir and/or raising inside above-mentioned raising oil reservoir The oil production of the oil reservoir.

The present invention enables all the components in activator to reach scheduled using the activator of segmentation injection different component Target position forms a complete activator system, successfully activates the endogenous functional microorganism of oil reservoir, improves microorganism to envelope The efficiency of stifled position aggregation improves oil recovery factor to play effective plugging function.

Detailed description of the invention

Fig. 1 is that so that Cut of Oilfield is remarkably decreased oil increasing effect significant for segmented activator injection.

Specific embodiment

Experimental method used in following embodiments is conventional method unless otherwise specified.

The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.

The selection criteria (such as table 1) of oil well is according to the standard of microbe oil production in following embodiments, and height contains in simultaneous selection The oil reservoir of water.

Table 1