A kind of anti-high temperature environment-friendly drilling fluid lubricant and preparation method thereof

An environment-friendly drilling fluid technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of low high temperature and high pressure resistance, low lubricating performance, etc., to improve lubricating performance, maintain authenticity, Effect of Lubrication Coefficient Reduction

Active Publication Date: 2020-08-11
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

[0004] The present invention aims to overcome the problems of low lubricating performance and low high-temperature and high-pressure resistance in the existing drilling process existing in the background technology, and it is difficult to meet the needs of drilling and production in deep wells and even ultra-deep wells, and provides a high-temperature-resistant and environment-friendly drilling fluid lubricant

Method used

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  • A kind of anti-high temperature environment-friendly drilling fluid lubricant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Prepare each reaction raw material according to following components and mass percentage:

[0031] Turkish red oil: 30%;

[0032] Simethicone: 30%;

[0033] Antiwear agent (T307, T323, T202): 9% (1:1:1);

[0034] Surfactant (sodium dodecylbenzenesulfonate ABS, SP-80): 10%;

[0035] Water: 21%;

[0036] (1) Add simethicone oil to the vegetable oil Turkish red oil in proportion, stir for 30 minutes, the stirring speed is 80 rpm; the stirring temperature is 35°C;

[0037] (2) Pre-mix the two surfactants and the three anti-wear agent mixtures in proportion, stir and react for 60 minutes, and then mix with the base oil in step (1);

[0038] (3) Finally, add water in proportion, continue to stir and react, and obtain the oil-based drilling fluid lubricant product of the present invention through filtration.

Embodiment 2

[0040] Prepare each reaction raw material according to following components and mass percentage:

[0041] Turkish red oil: 30%;

[0042] Simethicone: 30%;

[0043] Antiwear agent (T307, T323, T202): 9% (1:1:1);

[0044] Surfactant (sodium dodecylbenzenesulfonate ABS, SP-80): 10%;

[0045] Water: 21%;

[0046] (1) Add simethicone oil to the vegetable oil Turkish red oil in proportion, stir for 30 minutes, the stirring speed is 80 rpm; the stirring temperature is 35°C;

[0047] (2) Pre-mix the two surfactants and the three anti-wear agent mixtures in proportion, stir and react for 60 minutes, and then mix with the base oil in step (1);

[0048] (3) Finally, add water in proportion, continue to stir and react, and obtain the oil-based drilling fluid lubricant product of the present invention through filtration.

Embodiment 3

[0050] Prepare each reaction raw material according to following components and mass percentage:

[0051] Turkish red oil: 35%;

[0052] Simethicone: 25%;

[0053] Antiwear agent (T307, T323, T202): 9% (1:1:1);

[0054] Surfactant (sodium dodecylbenzenesulfonate ABS, SP-80): 10%;

[0055] Water: 21%;

[0056] (1) Add simethicone oil to vegetable oil Turkish red oil in proportion, stir for 30 minutes, stirring speed is 80 rpm; stirring temperature is 35°C;

[0057](2) Pre-mix the two surfactants and the three anti-wear agent mixtures in proportion, stir and react for 60 minutes, and then mix with the base oil in step (1);

[0058] (3) Finally, add water in proportion, continue to stir and react, and obtain the oil-based drilling fluid lubricant product of the present invention through filtration.

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Abstract

The invention relates to a high-temperature-resistant environment-protecting type drilling fluid lubricating agent. The high-temperature-resistant environment-protecting type drilling fluid lubricating agent mainly solves the problems that in the existing drilling process, the lubricating property is not high, high-temperature resistance and high-pressure resistance are low, and the drilling exploitation requirements of a deep well and an extradeep well are difficult to meet. The high-temperature-resistant environment-protecting type drilling fluid lubricating agent is characterized by comprising the following components in percentage by mass: 20 to 35 percent of plant oil, 20 to 40 percent of silicon oil, 5 to 10 percent of an anti-wear agent, 10 to 20 percent of a surfactant and 15 to 30percent of water. The preparation method of the drilling fluid lubricating agent comprises the following steps: (1) adding the silicon oil into the plant oil and performing stirring reaction; (2) mixing the surfactant and the anti-wear agent mixture according to the proportion in advance, performing stirring reaction, and mixing with the base oil in the step (1); (3) adding the water according tothe proportion, continuously performing stirring reaction and filtering to obtain a product. The high-temperature-resistant environment-protecting type drilling fluid lubricating agent can resist 150-DEG C temperature, is simple in synthesis process and convenient for on-site application, meets the environment-protecting requirement and is a high-performance liquid lubricating agent.

Description

technical field [0001] The invention relates to an additive in the technical field of petroleum drilling, in particular to a high-temperature resistant and environment-friendly drilling fluid lubricant and a preparation method thereof. Background technique [0002] Lubricants are composed of about 90% base oil and 10% additives, so base oil is the decisive factor affecting the biodegradability of lubricants. The base oils of green lubricants mainly include: natural vegetable oils, synthetic base oils, and improved industrial base oils. Natural vegetable oil has a high viscosity index, is non-toxic, has excellent biodegradability, low volatility, good lubricity, and is a renewable resource. The use of lubricating additives, the compound ratio of sulfur-containing agent and phosphorus-containing agent can improve the extreme pressure and anti-wear properties of vegetable oil to varying degrees when a single agent is used alone. During the friction process, chemisorption of b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/035
Inventor 孙敏刘永贵宋晓东宋涛张坤张洋李光磊
Owner BC P INC CHINA NAT PETROLEUM CORP
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