Preparation and application for green, environmentally-friendly and highly-efficient water-based drilling fluid lubricant

A water-based drilling fluid, green and environmentally friendly technology, applied in the field of drilling fluid, can solve the problems of unsatisfactory anti-wear and lubrication performance, inability to lubricate and reduce friction, and difficult biodegradation, etc., to achieve good compatibility, good synergy, shear The effect of low shear strength

Active Publication Date: 2020-05-08
郑州洁灵科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing common lubricants include vegetable oil, mineral oil, paraffin, ethylene glycol, polyethylene glycol, etc. These lubricants have an important defect: they can only work under low loads, and under high load conditions The anti-wear and lubricating properties are not ideal, and the drill bit is often worn out in advance
[0004] However, after the above-mentioned common drilling fluid lubricant is added

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation of the green environment-friendly high-efficiency water-based drilling fluid lubricant of the present embodiment, the water-based drilling fluid lubricant is composed of vegetable oil, vegetable oil, lubricating colloidal particles, ultrafine organic molybdenum, extreme pressure lubricant, friction modifier, dispersant and Composed of emulsifier, and the parts by weight of the above-mentioned raw materials are: 45 parts of vegetable oil, 20 parts of vegetable oil, 10 parts of lubricating colloidal particles, 4 parts of ultrafine organic molybdenum, 1 part of extreme pressure lubricant, and 0.5 parts of friction modifier , 0.4 part of dispersant, 1 part of emulsifier;

[0035] And the preparation of above-mentioned water base drilling fluid lubricant comprises the following steps:

[0036] S110: respectively adding ultrafine organic molybdenum, extreme pressure lubricant, and friction modifier into the vegetable oil, and stirring for 0.5h at 30°C and a ro...

Embodiment 2

[0052] The preparation of the green environment-friendly high-efficiency water-based drilling fluid lubricant of the present embodiment, the water-based drilling fluid lubricant is composed of vegetable oil, vegetable oil, lubricating colloidal particles, ultrafine organic molybdenum, extreme pressure lubricant, friction modifier, dispersant and Composed of emulsifier, and the parts by weight of the above-mentioned raw materials are: 65 parts of vegetable oil, 40 parts of vegetable oil, 20 parts of lubricating colloidal particles, 8 parts of ultrafine organic molybdenum, 3 parts of extreme pressure lubricant, and 1.5 parts of friction modifier , 0.8 parts of dispersant, 2 parts of emulsifier;

[0053] And the preparation of above-mentioned water base drilling fluid lubricant comprises the following steps:

[0054] S110: respectively adding ultrafine organic molybdenum, extreme pressure lubricant, and friction modifier into vegetable oil, and stirring for 1 hour at 30°C and 700...

Embodiment 3

[0070] The preparation of the green environment-friendly high-efficiency water-based drilling fluid lubricant of the present embodiment, the water-based drilling fluid lubricant is composed of vegetable oil, vegetable oil, lubricating colloidal particles, ultrafine organic molybdenum, extreme pressure lubricant, friction modifier, dispersant and Composed of emulsifier, and the parts by weight of the above raw materials are: 55 parts of vegetable oil, 30 parts of vegetable oil, 15 parts of lubricating colloidal particles, 6 parts of ultrafine organic molybdenum, 2 parts of extreme pressure lubricant, and 1 part of friction modifier , 0.6 parts of dispersant, 1.5 parts of emulsifier;

[0071] And the preparation of above-mentioned water base drilling fluid lubricant comprises the following steps:

[0072] S110: respectively adding ultrafine organic molybdenum, extreme pressure lubricant, and friction modifier into the vegetable oil, and stirring for 0.8h at 30°C and a rotation s...

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Abstract

The invention relates to the technical field of drilling fluids in petroleum and natural gas industries, specifically to preparation and application of a green, environmentally-friendly and highly-efficient water-based drilling fluid lubricant. The water-based drilling fluid lubricant is composed of vegetable oil, vegetable fat, lubricating colloidal particles, superfine organic molybdenum, an extreme pressure lubricant, a friction modifier, a dispersing agent and an emulsifying agent. The preparation method for the water-based drilling fluid lubricant comprises the following steps: respectively adding the superfine organic molybdenum, the extreme pressure lubricant and the friction modifier into the vegetable oil so as to obtain a first mixture; adding the emulsifying agent into the vegetable fat, and respectively adding the lubricating colloidal particles and the dispersing agent into the vegetable fat so as to obtain a second mixture; and adding the second mixture into the first mixture so as to obtain the water-based drilling fluid lubricant. The water-based drilling fluid lubricant disclosed by the invention is good in lubricating property and wear resistance, can be used forcarrying out directional lubricating and friction-reducing treatment on special parts, is easy to be biodegraded, belongs to a green and environmentally-friendly lubricant, and has good application prospect.

Description

technical field [0001] The invention relates to the technical field of drilling fluid in the petroleum and natural gas industry, in particular to the preparation and application of a green, environment-friendly and high-efficiency water-based drilling fluid lubricant. Background technique [0002] With the continuous development of petroleum exploration and development, the complex situation faced by drilling engineering has become increasingly prominent, and the number of extended-reach horizontal wells, directional wells, long open-hole deep wells, and wells with complex structures has gradually increased. Existing common lubricants include vegetable oil, mineral oil, paraffin, ethylene glycol, polyethylene glycol, etc. These lubricants have an important defect: they can only work under low loads, and under high load conditions The anti-wear and lubricating properties are not ideal, and the drill bit is often worn out in advance. Therefore, ordinary lubricants cannot meet...

Claims

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Application Information

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IPC IPC(8): C09K8/03C09K8/035C09K8/24
CPCC09K8/03C09K8/035C09K8/032C09K8/24C09K2208/34
Inventor 张星杰
Owner 郑州洁灵科技有限公司
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