Oil-base illegal cooking oil lubricant for drilling fluids and preparation method thereof

A drilling fluid and lubricant technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of high price, unfavorable environmental protection, etc., and achieve the effect of low cost, good economic benefits, and reduced friction coefficient

Active Publication Date: 2015-04-29
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many kinds of water-based lubricants for drilling fluids in the market, and waste oil is rarely used as the base oil of lubricants for drilling fluids alone, and the price is expensive, which is not conducive to environmental protection

Method used

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  • Oil-base illegal cooking oil lubricant for drilling fluids and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0022] A kind of oil base ditch oil lubricant for drilling fluid, comprising the following components by weight percentage: gutter oil 90.7%, antiseptic methyl p-hydroxybenzoate 0.15%, antioxidant 501 is 1%, extreme pressure additive T321 is 7% %, the ultraviolet absorber UV-O is 0.15%, and the pour point depressant glycerin is 1%. Among them, the vegetable oil content in waste oil is 40%~70%, and the animal oil content is 30%~60%. The manufacturer of extreme pressure additive T321 is Zibo Huihua Chemical Co., Ltd., and the manufacturer of antioxidant 501 is Nanjing Longyan Chemical Co., Ltd.

[0023] The preparation method of the oil base ditch oil lubricant for drilling fluid in this embodiment comprises the following steps:

[0024] Step 1) Add 90.7% waste oil into the closed reactor and start stirring. When the temperature of the reactor reaches 80°C, stir and add 0.15% preservative methyl paraben to react for 40 minutes;

[0025] b. Add 1% antioxidant 501, 7% extreme pr...

Embodiment 2

[0032] An oil-based waste oil lubricant for drilling fluids, comprising the following components in weight percent: 92.3% of waste oil, 0.1% of preservative butyl p-hydroxybenzoate, 0.5% of antioxidant 501, and 6% of extreme pressure additive T321 %, the ultraviolet absorber UV-P is 0.1%, and the pour point depressant polymethacrylate is 1%. Among them, the vegetable oil content in waste oil is 40%~70%, and the animal oil content is 30%~60%.

[0033] The preparation method of the oil base ditch oil lubricant for drilling fluid in this embodiment comprises the following steps:

[0034] Step 1) Add 92.3% waste oil into the closed reactor and start stirring. When the temperature of the reactor reaches 80°C, stir and add 0.1% preservative methyl paraben to react for 40 minutes;

[0035] b. Add 0.5% antioxidant 501, 5% extreme pressure additive T321, 0.1% ultraviolet absorber UV-P, stir and react for 20 minutes, stop heating and stirring, and add 1% pour point depressant methacryl...

Embodiment 3

[0042] An oil base waste oil lubricant for drilling fluid, comprising the following components in percentage by weight: waste oil 91.14%, preservative isobutyl p-hydroxybenzoate 0.13%, antioxidant distearyl thiodipropionate 0.8%, the extreme pressure additive sulfurized isobutylene is 7%, the ultraviolet absorber UV-O is 0.13%, and the pour point depressant glycerin is 0.8%. Among them, the vegetable oil content in waste oil is 40%~70%, and the animal oil content is 30%~60%.

[0043] The preparation method of the oil base ditch oil lubricant for drilling fluid in this embodiment comprises the following steps:

[0044] Step 1) Add 91.14% waste oil into the closed reactor and start stirring. When the temperature of the reactor reaches 80°C, stir and add 0.13% preservative methyl paraben to react for 40 minutes;

[0045] Step 2) Add 0.8% antioxidant distearyl thiodipropionate, 7% extreme pressure additive vulcanized isobutylene, 0.13% ultraviolet absorber UV-O, stir and react fo...

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Abstract

The invention provides an oil-base illegal cooking oil lubricant for drilling fluids, which comprises the following components in percentage by weight: 90-95% of illegal cooking oil, 0.1-0.15% of preservative, 0.5-1% of antioxidant, 5-7% of extreme-pressure additive, 0.1-0.15% of ultraviolet absorbent and 0.5-1% of pour-point depressant. The oil-base illegal cooking oil lubricant for drilling fluids is developed by using the illegal cooking oil as the base raw oil. The lubricant has the advantages of favorable water solubility, high stability, low fluorescence and no influence on geological logging, effectively solves the problem that the lubrication lowers the torque and friction resistance in the horizontal well drilling process, provides a brand-new way for recovery and reutilization of illegal cooking oil, has wide and profound social benefits, and has wide prospects for popularization and application.

Description

technical field [0001] The invention specifically relates to an oil base ditch oil lubricant for drilling fluid and a preparation method thereof. Background technique [0002] At present, with the continuous expansion of the development scale of horizontal wells in oil and gas fields (especially branched horizontal wells, ultra-long horizontal wells, gas storage wells, etc.), the horizontal section passes through a large section of carbonaceous mudstone, and the horizontal section is continuously lengthened, resulting in the The friction and torque increase significantly, leading to a sharp increase in lubricant consumption and a rapid increase in the cost of drilling fluid. Therefore, lubricant products with low cost, high efficiency, low toxicity and environmental protection characteristics have become one of the main directions of development. [0003] At the same time, as the state strengthens the rectification of edible waste oil, effective measures are continuously in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/24C09K8/18
CPCC09K8/18C09K8/24C09K2208/28C09K2208/34
Inventor 蔺文洁蔺志鹏刘婷婷张振活林海赵文庄陈磊张宇董海东张长庚郝超陈龙万长锁杨建荣周强王鼎董宏伟张艺聪赵向阳梁海军
Owner BC P INC CHINA NAT PETROLEUM CORP
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