CN102455271A - Method for determining influence of calcium chloride concentrations on performance of foaming agent - Google Patents
Method for determining influence of calcium chloride concentrations on performance of foaming agent Download PDFInfo
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- CN102455271A CN102455271A CN2010105316587A CN201010531658A CN102455271A CN 102455271 A CN102455271 A CN 102455271A CN 2010105316587 A CN2010105316587 A CN 2010105316587A CN 201010531658 A CN201010531658 A CN 201010531658A CN 102455271 A CN102455271 A CN 102455271A
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- calcium chloride
- frothing agent
- measuring
- chloride concentration
- foam
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Abstract
The invention discloses a method for determining the influence of calcium chloride concentrations on the performance of a foaming agent, which comprises the following steps of: adding foaming agent solutions with different calcium chloride concentrations into a measuring cup; carrying out high-speed stirring on the obtained mixture; reading the volume of foam; measuring the time required by separating out 50 ml of liquid from the foam; comparing the data of the volume of the foam with the data of the time so as to determine the optimum calcium chloride concentration, and the like. By using the method disclosed by the invention, the influence of calcium chloride concentrations on the performance of a foaming agent can be determined, thereby providing a preferable using environment for the foaming agent; and the method is simple in operation, short in detection time, low in detection cost, and beneficial for promotion.
Description
Technical field
The present invention relates to a kind of method of measuring calcium chloride concentration to the frothing agent performance impact.
Background technology
Foam is a kind of unsettled substance system, and the screening of frothing agent is the important process during all aerated fluids are used with estimating, and different application purposes has different requirement for frothing agent.Dissimilar frothing agent adaptability have bigger difference, and foam fracturing fluid mainly contains following requirement for frothing agent:
(1) frothing capacity is good, foam base fluid with can produce significant foam after gas contacts, promptly the foam volume expansion multiple is high.
(2) foam has better stability.
(3) contamination resistance is strong, and is good with other fluid compatibility.
(4) consumption is few, and cost is low.
(5) it is abundant that frothing agent is made raw material, and the supply source of goods is extensive.
The frothing agent performance is mainly estimated from two aspects, and the one, foamability is stability on the other hand.
Frothing agent commonly used mainly contains several types such as anionic frothing agent, nonionic frothing agent, compound frothing agent, superpolymer type frothing agent, and the basic frothing capacity difference of various frothing agents is bigger.
Certain salinity is all arranged in the local water, and along with the degree of depth that liquid gets into, salinity is constantly to change.In fracturing liquid, generally can add salt clay stabilizers such as lime chloride, prevent clay swelling or migration, avoid the coal seam reservoir permeability to reduce.Therefore be necessary the brine tolerance of frothing agent is estimated, promptly measure calcium chloride concentration the frothing agent Effect on Performance.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art; A kind of method of measuring calcium chloride concentration to the frothing agent performance impact is provided; This method can be measured calcium chloride concentration to the frothing agent Effect on Performance; Thereby for frothing agent provides preferred environment for use, and simple to operate, detection time is short, the detection cost is low, be beneficial to popularization.
The object of the invention is realized through following technical proposals: a kind of method of measuring calcium chloride concentration to the frothing agent performance impact may further comprise the steps:
(a) respectively the foaming agent solution of different calcium chloride concentrations is added in the different measuring cups;
(b) carry out the high-speed stirred certain hour respectively after, close whip switch;
(c) read the foam volume in each measuring cup, thereby obtain a plurality of foam volume data, this foam volume is the foaming capacity of frothing agent at once;
(d) write down each measuring cup respectively and from foam, separate out the required time of 50ml liquid,, thereby obtain a plurality of half life period, be the stability of frothing agent as the half life period of foam;
(e) compare foam volume data and the half life period that above-mentioned steps obtains, thereby obtain different calcium chloride concentrations the frothing agent Effect on Performance.
In the said step (a), foaming agent solution is 100ml.
In the said step (a), the concentration of foaming agent solution is 1.00g/L.
In the said step (b), stirring rate is greater than 1000r/min.
In the said step (b), stirring rate is 8000r/min.
In the said step (b), mixing time is 3 minutes.
Said frothing agent is the lauryl sodium sulfate frothing agent.
In sum, the invention has the beneficial effects as follows: can measure calcium chloride concentration to the frothing agent Effect on Performance, thereby for frothing agent provides preferred environment for use, and simple to operate, detection time is short, the detection cost is low, be beneficial to popularization.
Description of drawings
Fig. 1 is the influence synoptic diagram of calcium chloride concentration of the present invention to the foaming volume;
Fig. 2 is the influence synoptic diagram of calcium chloride concentration of the present invention to the half life period;
Fig. 3 is the influence synoptic diagram of calcium chloride concentration of the present invention to the foam integrated value.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done further detailed description, but embodiment of the present invention is not limited only to this.
Embodiment:
A kind of method of measuring calcium chloride concentration to the frothing agent performance impact that the present invention relates to may further comprise the steps:
(a) respectively the foaming agent solution of different calcium chloride concentrations is added in the different measuring cups;
(b) carry out the high-speed stirred certain hour respectively after, close whip switch;
(c) read the foam volume in each measuring cup, thereby obtain a plurality of foam volume data, this foam volume is the foaming capacity of frothing agent at once;
(d) write down each measuring cup respectively and from foam, separate out the required time of 50ml liquid,, thereby obtain a plurality of half life period, be the stability of frothing agent as the half life period of foam;
(e) compare foam volume data and the half life period that above-mentioned steps obtains, thereby obtain different calcium chloride concentrations the frothing agent Effect on Performance.
In the said step (a), foaming agent solution is 100ml.
In the said step (a), the concentration of foaming agent solution is 1.00g/L.
In the said step (b), stirring rate is greater than 1000r/min.
In the said step (b), stirring rate is 8000r/min.
In the said step (b), mixing time is 3 minutes.
Said frothing agent is the lauryl sodium sulfate frothing agent.
Certain salinity is all arranged in the local water, and along with the degree of depth that liquid gets into, salinity is constantly to change.In fracturing liquid, generally can add salt clay stabilizers such as lime chloride, prevent clay swelling or migration, avoid the coal seam reservoir permeability to reduce.Therefore be necessary the brine tolerance of frothing agent is estimated, promptly measure calcium chloride concentration the frothing agent Effect on Performance.
In order to obtain best calcium chloride concentration, the present invention has done calcium chloride concentration to the test of frothing agent Effect on Performance, and test findings is like Fig. 1,2, shown in 3.Can know by Fig. 1,2,3; Lime chloride is bigger to the frothing capacity influence of lauryl sodium sulfate frothing agent; Along with the increase of lime chloride massfraction, its foaming volume and half life period all obviously reduce, when calcium chloride concentration reaches 1%; The foamability and the half life period of lauryl sodium sulfate frothing agent significantly reduce, and have almost lost foamability.Therefore, the optimal chlorination calcium concentration of the present invention's mensuration is less than 1%.
The said determination calcium chloride concentration can be measured calcium chloride concentration to the frothing agent Effect on Performance to the method for frothing agent performance impact, thereby for frothing agent provides preferred environment for use, and simple to operate, detection time is short, the detection cost is low, be beneficial to popularization.
The above only is 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 to above embodiment did all fall within protection scope of the present invention.
Claims (7)
1. a method of measuring calcium chloride concentration to the frothing agent performance impact is characterized in that, may further comprise the steps:
(a) respectively the foaming agent solution of different calcium chloride concentrations is added in the different measuring cups;
(b) carry out the high-speed stirred certain hour respectively after, close whip switch;
(c) read the foam volume in each measuring cup, thereby obtain a plurality of foam volume data, this foam volume is the foaming capacity of frothing agent at once;
(d) write down each measuring cup respectively and from foam, separate out the required time of 50ml liquid,, thereby obtain a plurality of half life period, be the stability of frothing agent as the half life period of foam;
(e) compare foam volume data and the half life period that above-mentioned steps obtains, thereby obtain different calcium chloride concentrations the frothing agent Effect on Performance.
2. a kind of method of measuring calcium chloride concentration to the frothing agent performance impact according to claim 1 is characterized in that in the said step (a), foaming agent solution is 100ml.
3. a kind of method of measuring calcium chloride concentration to the frothing agent performance impact according to claim 1 is characterized in that in the said step (a), the concentration of foaming agent solution is 1.00g/L.
4. a kind of method of measuring calcium chloride concentration to the frothing agent performance impact according to claim 1 is characterized in that in the said step (b), stirring rate is greater than 1000r/min.
5. a kind of method of measuring calcium chloride concentration to the frothing agent performance impact according to claim 4 is characterized in that in the said step (b), stirring rate is 8000r/min.
6. a kind of method of measuring calcium chloride concentration to the frothing agent performance impact according to claim 1 is characterized in that in the said step (b), mixing time is 3 minutes.
7. a kind of method of measuring calcium chloride concentration to the frothing agent performance impact according to claim 1 is characterized in that said frothing agent is the lauryl sodium sulfate frothing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105316587A CN102455271A (en) | 2010-10-25 | 2010-10-25 | Method for determining influence of calcium chloride concentrations on performance of foaming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105316587A CN102455271A (en) | 2010-10-25 | 2010-10-25 | Method for determining influence of calcium chloride concentrations on performance of foaming agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102455271A true CN102455271A (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010105316587A Pending CN102455271A (en) | 2010-10-25 | 2010-10-25 | Method for determining influence of calcium chloride concentrations on performance of foaming agent |
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| Country | Link |
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| CN (1) | CN102455271A (en) |
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2010
- 2010-10-25 CN CN2010105316587A patent/CN102455271A/en active Pending
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Application publication date: 20120516 |