CN103776692A - Method for testing tensile strength of lost circulation additive - Google Patents
Method for testing tensile strength of lost circulation additive Download PDFInfo
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- CN103776692A CN103776692A CN201210441175.7A CN201210441175A CN103776692A CN 103776692 A CN103776692 A CN 103776692A CN 201210441175 A CN201210441175 A CN 201210441175A CN 103776692 A CN103776692 A CN 103776692A
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- tensile strength
- lost circulation
- circulation additive
- particulate matter
- refracturing
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a method for testing tensile strength of a lost circulation additive. The method comprises the steps as follows: a, firstly, preparing a refracturing plugging agent sample for standby use; b, then, packing the prepared refracturing plugging agent sample in an experimental bag; c, clamping the experimental bag via a rope, wherein the other end of the rope is connected with a tension meter; d, continuously filling granular matters in the experimental bag until a core is extracted out, and then weighing the weight of the granular matters; e, reading the count of the tension meter, and analyzing the tensile strength of the lost circulation additive according to the count of the tension meter and the weight of the granular matters. According to the invention, the tensile strength of the lost circulation additive can be quickly tested, the test result is accurate, the test cost is low, data support is provided for production and use of the refracturing plugging agent, and the test cost is greatly reduced.
Description
Technical field
The present invention relates to a kind of method of testing lost circulation additive tensile strength.
Background technology
Lost circulation additive is a kind of fast solidifying, and hour intensity is high, has the hydraulic material of microdilatancy, this advantages of nontoxic raw materials is tasteless, through strictly screening, performance brilliance, easy and simple to handle, water is in harmonious proportion and can uses, and can on wet surface, construct, also can leakage plugging under water, effect is peculiar, and this raw material can be widely used in house, underground, under water, the leak stopping of the engineerings such as drift sand tunnel, sealing, repairing, construction and the leak stopping maintenance etc. of perfusion and percolating work.
1, first leakage point or pervious seam are cut a hole into vertical or flared horn, foreign material are cleaned out;
2, agent to rapidly block up leakage is put into agitated kettle, add a certain proportion of water, rapidly mix becomes mud paste, and winter temperature is during lower than 5 degrees Celsius, with 40 degrees Celsius of water stirrings;
3, the lost circulation additive clay of mixing is placed on hand, feels clay adstante febre a little, depress rapidly along the direction of leaking, certain time just can be loosed one's grip, and generally within 10 minutes, water blocking may be lived;
4, after water blockoff, wipe one's face with macromolecule waterproof mortar again, surface maintenance three days;
5, for soakaway, can be directly agent to rapidly block up leakage dry powder be dropped in hole, then tramp with one's feet, loose pin again after hardening;
6, for the crack that seriously leaks, first dig out conduction hole at the serious place of leaking and locate seepages to slow down all the other, finally block conduction hole, and then wipe one's face with macromolecule waterproof mortar.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of method of testing lost circulation additive tensile strength is provided, this method of testing energy Quick Measuring is made the tensile strength of lost circulation additive, and test result is accurate, testing cost is low, for production and the use of refracturing blocking agent provide Data support, greatly reduce testing cost.
Object of the present invention is achieved through the following technical solutions: a kind of method of testing lost circulation additive tensile strength, comprises the following steps:
(a) first, prepare refracturing blocking agent sample for subsequent use;
(b) then, the refracturing blocking agent sample preparing is packed in Experimental bag;
(c) then, by rope, Experimental bag is blocked, the rope other end connects tautness meter;
(d) in Experimental bag, constantly pack particulate matter into, until rock core is suggested, then weigh the weight of particulate matter;
(e) read tautness meter counting, count with the weight fraction of particulate matter and separate out the tensile strength of lost circulation additive by tautness meter.
Described Experimental bag is that cloth is made.
In described step (c), particulate matter is river sand.
In sum, the invention has the beneficial effects as follows: energy Quick Measuring is made the tensile strength of lost circulation additive, and test result is accurate, and testing cost is low, for production and the use of refracturing blocking agent provide Data support, greatly reduces testing cost.
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:
A kind of method of testing lost circulation additive tensile strength the present invention relates to, its concrete steps are as follows:
(a) first, prepare refracturing blocking agent sample for subsequent use;
(b) then, the refracturing blocking agent sample preparing is packed in Experimental bag;
(c) then, by rope, Experimental bag is blocked, the rope other end connects tautness meter;
(d) in Experimental bag, constantly pack particulate matter into, until rock core is suggested, then weigh the weight of particulate matter;
(e) read tautness meter counting, count with the weight fraction of particulate matter and separate out the tensile strength of lost circulation additive by tautness meter.
Described Experimental bag is that cloth is made.
In described step (c), particulate matter is river sand.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, every foundation technical spirit of the present invention, and any simple modification, equivalent variations that above embodiment is done, within all falling into protection scope of the present invention.
Claims (3)
1. the method for test lost circulation additive tensile strength, is characterized in that, comprises the following steps:
(a) first, prepare refracturing blocking agent sample for subsequent use;
(b) then, the refracturing blocking agent sample preparing is packed in Experimental bag;
(c) then, by rope, Experimental bag is blocked, the rope other end connects tautness meter;
(d) in Experimental bag, constantly pack particulate matter into, until rock core is suggested, then weigh the weight of particulate matter;
(e) read tautness meter counting, count with the weight fraction of particulate matter and separate out the tensile strength of lost circulation additive by tautness meter.
2. the method for test lost circulation additive tensile strength according to claim 1, is characterized in that, described Experimental bag is that cloth is made.
3. the method for test lost circulation additive tensile strength according to claim 1, is characterized in that, in described step (c), particulate matter is river sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441175.7A CN103776692A (en) | 2012-10-17 | 2012-10-17 | Method for testing tensile strength of lost circulation additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441175.7A CN103776692A (en) | 2012-10-17 | 2012-10-17 | Method for testing tensile strength of lost circulation additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103776692A true CN103776692A (en) | 2014-05-07 |
Family
ID=50569198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210441175.7A Pending CN103776692A (en) | 2012-10-17 | 2012-10-17 | Method for testing tensile strength of lost circulation additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103776692A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340710A (en) * | 2021-06-09 | 2021-09-03 | 三峡大学 | Magnetic self-polymerization slurry water shutoff shear resistance testing device and testing method |
-
2012
- 2012-10-17 CN CN201210441175.7A patent/CN103776692A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340710A (en) * | 2021-06-09 | 2021-09-03 | 三峡大学 | Magnetic self-polymerization slurry water shutoff shear resistance testing device and testing method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |