Modified methyl glucoside treating agent for drill fluid
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A technology of methyl glucoside and methyl glucoside, which is applied in the field of modified methyl glucoside treatment agents for drilling fluid, which can solve the problem of drilling fluid foaming, drilling fluid rheology and wall-building deterioration, and increase salinity And other problems, to achieve good high temperature stability, excellent lubrication, reduce the effect of fluid loss
Inactive Publication Date: 2013-02-13
WESTERN DRILLING KELAMAYI DRILLING TECH INST
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Problems solved by technology
However, because a single inorganic salt or organic salt inevitably contains a large number of anions, while increasing the salinity, the real useful cations do not increase, and the inhibitory effect on the drilling fluid is not enhanced, which leads to the rheological change of the drilling fluid. and wall-building deterioration
In order to adjust the performance of the drilling fluid, a large amount of treatment agent must be added, which increases the cost of the drilling fluid
[0010] (3) When methyl glucoside is added to the drilling fluid, it is easy to cause the drilling fluid to foam, and the amount added is large, which indirectly leads to an increase in cost; and its temperature resistance is not good, so it is difficult to use on a large scale
Method used
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Embodiment 1
[0038] Step 1: Heat the methyl glucoside mother liquor (1 part) to 40-80°C, and distill off some impurities;
[0039] Step 2: adding the sulfonating reagent (0.5 parts) into a certain amount of water to prepare a solution with a concentration of 40%;
[0040] Step 3: adding the solution in step 2 to the treated methyl glucoside mother liquor;
[0041] Step 4: Adjust the mixed solution of step 3 to alkaline with alkaline substances;
[0042] Step 5: Add the intermediate (0.1 part) to the solution in step 4, and make it fully react at an appropriate temperature to obtain the present invention.
Embodiment 2
[0044] Step 1: Heat the methyl glucoside mother liquor (1 part) to 40-80°C, and distill off some impurities;
[0045] Step 2: adding the sulfonation reagent (1 part) into a certain amount of water to prepare a solution with a concentration of 40%;
[0046] Step 3: adding the solution in step 2 to the treated methyl glucoside mother liquor;
[0047] Step 4: Adjust the mixed solution of step 3 to alkaline with alkaline substances;
[0048] Step 5: Add the intermediate (0.5 parts) to the solution in step 4, and react fully at an appropriate temperature to obtain the present invention.
Embodiment 3
[0050] Step 1: Heat the methyl glucoside mother liquor (1 part) to 40-80°C, and distill off some impurities;
[0051] Step 2: adding the sulfonating reagent (0.9 parts) into a certain amount of water to prepare a solution with a concentration of 40%;
[0052] Step 3: adding the solution in step 2 to the solution obtained in step 1;
[0053] Step 4: Adjust the mixed solution of step 3 to alkaline with alkaline substances;
[0054] Step 5: Add aldehyde intermediates (0.3 part) to the solution in step 4, and make it fully react at an appropriate temperature, and the obtained substance is the present invention.
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Abstract
The invention discloses a treating agent for drill fluid, namely a modified methyl glucoside treating agent for the drill fluid, which is prepared by the following chemical reactions: (1) heating 1 portion of a methyl glucoside mother liquor to a temperature of between 40 to 80 DEG C and distilling a part of impurilities out; (2), preparing 40 percent solution by dissolving 0.5 to 1 portion of a sulfonating reagent in a proper amount of water; (3) adding 0.1 to 0.5 portion of intermedium aldehydes and the treated methyl glucoside mother liquor obtained by step (1) into the solution obtained bythe step (2), uniformly stirring the mixture at a temperature of 80 to 110 DEG C and a pH value of 8 to 12 and refluxing the mixture for 7 to 10h to allow the mixture to undergo complete chemical reaction; and (4) making the resultant of the reaction into a colloid or baking the resultant until the resultant is completely dry, and treating the product to obtain the modified methyl glucoside treating agent. The modified methyl glucoside treating agent has the advantages of strong inhibitive ability, lubricating property and temperature resistance, no side effect on the performance of the drillfluid, no negative effect on other drilling operation procedures and no pollution to the environment.
Description
technical field [0001] The invention relates to a treatment agent for drilling fluid, in particular to a modified methyl glucoside treatment agent for drilling fluid. Background technique [0002] With the gradual decline of world oil and natural gas reserves and the increasing consumption of oil and gas, oil drilling is becoming more and more difficult. It is mainly manifested in that with the depletion of oil and gas reserves in shallow reservoirs, the exploitation depth of oil wells continues to deepen, the complex formations encountered by drilling increase, and the drilling cost increases greatly. [0003] At present, in the field of oil drilling in the world and domestically, the instability of the shale well section wall has always been a problem that has not been completely solved by drilling technology. A large number of field practices have shown that in many difficult wells, the difficulty lies in the inability to solve the problem of wellbore instability in shal...
Claims
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Application Information
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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/035
Inventor 乔东宇杨玉良宋朝晖郑义平黄治中马世昌赵玉婷
Owner WESTERN DRILLING KELAMAYI DRILLING TECH INST
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