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Lubrication inhibitor nanometer ester-group hydrate used for drilling fluid and preparation method thereof

A technology of ester hydrates and inhibitors, which is applied in the preparation of nano-ester hydrates of lubrication inhibitors for drilling fluids, and in the field of nano-ester hydrates of lubrication inhibitors for drilling fluids. Environmental pollution, raw materials are not easy to degrade and other problems, to achieve the effect of inhibiting hydration dispersion, simple preparation process, and reducing complex accidents downhole

Active Publication Date: 2018-11-27
石家庄华莱鼎盛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Some of the above technologies use raw materials that are not easy to degrade, have large molecular weight, and strong alkalinity, which is easy to cause environmental pollution to the soil
And the production process is complicated and the cost is high
The above technologies have not provided specific guidance on how to ensure that the drilling fluid maintains good lubricity in the drilling tool, reduce the back pressure phenomenon of the drilling rig, maintain the drilling speed, and at the same time effectively inhibit the hydration and dispersion of the wellbore clay

Method used

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  • Lubrication inhibitor nanometer ester-group hydrate used for drilling fluid and preparation method thereof
  • Lubrication inhibitor nanometer ester-group hydrate used for drilling fluid and preparation method thereof
  • Lubrication inhibitor nanometer ester-group hydrate used for drilling fluid and preparation method thereof

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Effect test

Embodiment 1

[0025] Embodiment 1: the nanometer ester hydrate of lubrication inhibitor for drilling fluid of the present invention is made from the raw material of following weight ratio (weight parts, mass parts):

[0026]

[0027]The emulsifier is a combination of polyoxyethylene sorbitan monooleate and sorbitan monooleate, polyoxyethylene sorbitan monooleate, sorbitan monooleate The weight ratio of the acid ester is 2:1; the mineral oil is a combination of No. 5 white oil and No. 7 white oil, and the weight ratio of No. 5 white oil and No. 7 white oil is 1:2.

[0028] The preparation method of the described lubrication inhibitor nano-ester-based hydrate for drilling fluid comprises the following process steps: ①Weigh the raw materials potassium methyl silicate, methyl oleate, deionized water, 10 parts of No. 5 White oil, 20 parts of No. 7 white oil, 6.8 parts of polyoxyethylene sorbitan monooleate, 3.4 parts of sorbitan monooleate, each raw material is added in the reaction kettle, a...

Embodiment 2

[0029] Embodiment 2: the nanometer ester hydrate of lubrication inhibitor for drilling fluid of the present invention is made from the raw material of following weight ratio (weight parts, mass parts):

[0030]

[0031] The emulsifier is a combination of polyoxyethylene sorbitan monooleate and sorbitan monooleate, polyoxyethylene sorbitan monooleate, sorbitan monooleate The weight ratio of the esters is 1:2; the mineral oil is No. 5 white oil.

[0032] The preparation method of the described lubrication inhibitor nano-ester-based hydrate for drilling fluid comprises the following process steps: ① Weigh the raw materials potassium methyl silicate, methyl oleate, deionized water, mineral oil, 2.7 1 part of polyoxyethylene sorbitan monooleate, 5.4 parts of sorbitan monooleate, each raw material is added in the reactor, makes each raw material fully mix and dissolve, obtains the mixture; ②Then emulsify the mixture process, the emulsification temperature is 75°C, the emulsifica...

Embodiment 3

[0033] Embodiment 3: the nanometer ester hydrate of lubrication inhibitor for drilling fluid of the present invention is made from the raw material of following weight ratio (weight parts, mass parts):

[0034]

[0035] Described emulsifier is polyoxyethylene sorbitan monooleate, and described mineral oil is No. 7 white oil.

[0036] The preparation method of the described lubrication inhibitor nano-ester-based hydrate for drilling fluid comprises the following process steps: ① Weigh the raw materials potassium methyl silicate, methyl oleate, deionized water, mineral oil, emulsified Add the raw materials into the reaction kettle to fully mix and dissolve the raw materials to obtain the mixture; ②Then carry out the emulsification process on the mixture, the emulsification temperature is 85°C, the emulsification time is 1h, and the intermediate product is obtained after the emulsification process is completed; ③ Cool down the intermediate product obtained in step ②, add 10 pa...

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Abstract

The invention discloses a lubrication inhibitor nanometer ester-group hydrate used for drilling fluid and a preparation method thereof. The lubrication inhibitor nanometer ester-group hydrate used fordrilling fluid is prepared from potassium trimethylsilanolate, methyl oleate, deionized water, mineral oil, an emulsifying agent and nanosilicon dioxide powder. The preparation method includes the steps that the potassium trimethylsilanolate, methyl oleate, deionized water, mineral oil and emulsifying agent are added into a reaction kettle and sufficiently mixed and stirred; the materials in thereaction kettle are heated, and emulsifying is performed; at certain temperature, the nanosilicon dioxide powder is added, the mixture is sufficiently mixed and stirred, and the hydrate is obtained after cooling. The lubrication inhibitor nanometer ester-group hydrate is good in performance and simple in technology, has high lubrication restraining capacity, ensures that the drilling fluid keeps good lubrication performance in a drill tool, reduces backing pressure of a drilling machine, keeps drilling speed, effectively restrains hydration dispersion of well wall clay, has good restraining performance and compatibility, effectively avoids or reduces downhole complex accidents, improves well drilling quality and efficiency, and is suitable for kinds of drilling fluid systems.

Description

technical field [0001] The invention relates to a petroleum drilling aid, in particular to a nano-ester-based hydrate of lubrication inhibitor for drilling fluid. The invention also relates to a preparation method of the nanometer ester hydrate of the lubrication inhibitor for drilling fluid. Background technique [0002] Drilling fluid is the blood of drilling engineering. With the development of deep wells, ultra-deep wells, and horizontal wells, the requirements for drilling are getting higher and higher. A good performance treatment agent is very important for drilling fluids, especially for horizontal wells. The requirements are more stringent. Although there are many types of lubricants on the market, they often cannot have both lubrication inhibition and environmental protection. At present, the commonly used lubrication inhibitors that can meet the requirements of environmental protection have certain deficiencies in their performance, and it is difficult to guarant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/03
CPCC09K8/03C09K2208/10C09K2208/34
Inventor 陈利赵秀平曹娇陈志强
Owner 石家庄华莱鼎盛科技有限公司
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