High efficiency water-based drilling fluid lubricant and method of making same

Abstract

The application relates to the technical field of drilling fluids, and particularly discloses a high-efficiency water-based drilling fluid lubricant and a preparation method thereof. The high-efficiency water-based drilling fluid lubricant comprises the following components in parts by weight: 30-50 parts of long-chain fatty acid, 35-60 parts of polyether amine, 5-15 parts of hydroxypropyl methyl cellulose, 5-10 parts of alkyl polyglycoside, 5-15 parts of silicone oil, 3-8 parts of extreme-pressure anti-wear agent, 2-6 parts of antifoaming agent and 1-4 parts of emulsifier. The high-efficiency water-based drilling fluid lubricant and the preparation method thereof comprise the following steps: S1, long-chain fatty acid is added into a reaction container and heated, then polyether amine is added, and a heat preservation reaction is carried out under nitrogen protection; S2, after being cooled to room temperature, hydroxypropyl methyl cellulose, alkyl polyglycoside, silicone oil and extreme-pressure anti-wear agent are added into a reaction kettle and mixed and stirred; and S3, antifoaming agent and emulsifier are further added into the reaction kettle, and continuous stirring is carried out, so that the high-efficiency water-based drilling fluid lubricant is obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling fluid, in particular to a high-efficiency water-based drilling fluid lubricant and a preparation method thereof. BACKGROUND

[0002] With the continuous development of oil exploration and development, the complex situation in drilling engineering is increasingly prominent, and large displacement horizontal wells, directional wells and long open hole deep wells, complex structure wells gradually increase. The existing ordinary water-based drilling fluid has poor lubricity, and has an important defect: it can only work under low load, and the anti-wear and lubrication performance is not ideal under high load conditions, and the drill bit often wears prematurely. Moreover, high friction and torque often cause sticking, sticking, bit balling, slow mechanical drilling speed and even well collapse and other downhole accidents, which seriously restricts the safe and efficient exploration and development of oil and gas. Therefore, the ordinary water-based lubricant cannot meet the needs of deep well, ultra-deep well drilling, large displacement well drilling, and it is urgent to develop a high-efficiency water-based drilling fluid lubricant which not only has good lubricity, but also has extreme pressure wear resistance and anti-collapse inhibition. SUMMARY

[0003] In order to solve at least one of the above technical problems, develop an extreme pressure wear-resistant and anti-collapse inhibiting drilling fluid lubricant, the present application provides a high-efficiency water-based drilling fluid lubricant and a preparation method thereof.

[0004] In one aspect, the present application provides a high-efficiency water-based drilling fluid lubricant, which comprises the following components by weight: 30-50 parts of long-chain fatty acid, 35-60 parts of polyether amine, 5-15 parts of hydroxypropyl methyl cellulose, 5-10 parts of alkyl polyglycoside, 5-15 parts of silicone oil, 3-8 parts of extreme pressure anti-wear agent, 2-6 parts of anti-foaming agent, and 1-4 parts of emulsifier.

[0005] By adopting the above technical scheme, the present application selects specific raw materials for compounding, and the prepared high-efficiency water-based drilling fluid lubricant has excellent lubricity, extreme pressure wear resistance, can lubricate the well wall, and effectively reduce the wear of the drill bit. At the same time, it also has anti-collapse inhibition performance, which can effectively stabilize the well wall during drilling.

[0006] The present application selects long-chain fatty acid and polyether amine for amidation reaction, which can effectively improve the adsorbability of the prepared high-efficiency water-based drilling fluid lubricant, so that the lubricant is firmly adsorbed on the well wall and the surface of the drilling tool, plays a long-acting lubricating role, and reduces the wear of the drilling tool.

[0007] Preferably, the high-efficiency water-based drilling fluid lubricant comprises the following components by weight: 35-43 parts of long-chain fatty acid, 40-50 parts of polyether amine, 8-12 parts of hydroxypropyl methyl cellulose, 5-7 parts of alkyl polyglycoside, 7-13 parts of silicone oil, 4-6 parts of extreme pressure anti-wear agent, 2-3 parts of anti-foaming agent, and 2-3 parts of emulsifier.

[0008] Optionally, the long-chain fatty acid comprises one of lauric acid, stearic acid, and oleic acid.

[0009] Optionally, the alkyl glycoside comprises one or more of polyether amine alkyl glycoside, ethylene glycol alkyl glycoside, and polyamine alkyl glycoside.

[0010] Preferably, the alkyl glycoside is ethylene glycol alkyl glycoside and polyamine alkyl glycoside in a weight ratio of 1:1.

[0011] By adopting the technical solution, the alkyl glycoside selected by the application has good lubricating effect, can reduce the friction coefficient of the drilling fluid, reduce the friction, and can also inhibit the swelling and falling of the formation rock, thereby effectively preventing the collapse of the well wall during drilling, and has anti-collapse inhibition performance.

[0012] Optionally, the weight ratio of the hydroxypropyl methyl cellulose and the alkyl glycoside is (4-6):3.

[0013] By adopting the technical solution, the application limits the dosage ratio of hydroxypropyl methyl cellulose and alkyl glycoside, which improves the lubricity, extreme pressure and wear resistance, and anti-collapse inhibition of the lubricant under the joint action of the two.

[0014] Optionally, the extreme pressure and wear resistant agent is one or both of sulfur-free phosphorus-free organic molybdenum and oleic acid diethanol amide borate.

[0015] Optionally, the extreme pressure and wear resistant agent comprises sulfur-free phosphorus-free organic molybdenum and oleic acid diethanol amide borate in a mass ratio of 1:(1-3).

[0016] By adopting the technical solution, the application limits the types of extreme pressure and wear resistant agents and the dosage ratio between the various extreme pressure and wear resistant agents, thereby reducing the sintering, scratching and wear of the metal surface of the drill bit under high load conditions.

[0017] Optionally, the anti-foaming agent is polyether siloxane.

[0018] Optionally, the emulsifier is a non-ionic surfactant, comprising one or both of octyl polyoxyethylene ether and octyl polyoxyethylene ether sodium sulfate.

[0019] In a second aspect, the application provides a preparation method of the above-mentioned high-efficiency water-based drilling fluid lubricant, comprising the following steps:

[0020] S1, add long-chain fatty acid to a reaction container, heat to 110-120℃, then add polyether amine, and perform heat preservation reaction under nitrogen protection for 2-3h;

[0021] S2, after cooling to room temperature, adding hydroxypropyl methyl cellulose, alkyl polyglycoside, silicone oil and extreme pressure anti-wear agent into the reaction kettle, mixing and stirring for 20-30 min;

[0022] S3, adding anti-foaming agent and emulsifier into the reaction kettle, continuing to stir for 30-40 min, to obtain the high-efficiency water-based drilling fluid lubricant.

[0023] By adopting the technical scheme, the preparation method is simple and convenient, and the preparation process is environmentally friendly and pollution-free. Through three-step mixing, the raw materials are gradually added, which is conducive to regulating the performance of the lubricant, reducing side reactions and adverse effects. The prepared high-efficiency water-based drilling fluid lubricant has good lubricity, strong extreme pressure and anti-wear performance, and good anti-collapse inhibition performance.

[0024] Optionally, in steps S2 and S3, the stirring rate is 800-1000 rpm.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The present application selects specific raw materials for compounding, and the prepared high-efficiency water-based drilling fluid lubricant has excellent lubricity, extreme pressure and anti-wear performance, can lubricate the well wall, and effectively reduce the wear of the drill bit. At the same time, it also has anti-collapse inhibition performance, which can effectively stabilize the well wall during drilling.

[0027] 2. The present application uses long-chain fatty acid and polyether amine for amidation reaction, which can effectively improve the adsorbability of the prepared high-efficiency water-based drilling fluid lubricant, so that the lubricant is firmly adsorbed on the well wall and the surface of the drilling tool, playing a long-acting lubricating role and reducing the wear of the drilling tool.

[0028] 3. The alkyl polyglycoside used in the present application has good lubricating effect, can reduce the friction coefficient of the drilling fluid, reduce the friction force, and can also inhibit the swelling and falling off of the formation rock, thereby effectively preventing the collapse of the well wall during drilling, and has anti-collapse inhibition performance. The present application limits the types of extreme pressure anti-wear agents and the dosage ratio between the various extreme pressure anti-wear agents, which reduces the sintering, scratching and wear of the drill bit metal surface under high load conditions.

[0029] 4. By adopting the technical scheme, the preparation method is simple and convenient, and the preparation process is environmentally friendly and pollution-free. Through three-step mixing, the raw materials are gradually added, which is conducive to regulating the performance of the lubricant, reducing side reactions and adverse effects. The prepared high-efficiency water-based drilling fluid lubricant has good lubricity, strong extreme pressure and anti-wear performance, and good anti-collapse inhibition performance. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in combination with examples.

[0031] The application designs a high-efficiency water-based drilling fluid lubricant, which comprises the following components in parts by weight: long-chain fatty acid 30-50 parts, polyether amine 35-60 parts, hydroxypropyl methyl cellulose 5-15 parts, alkyl glycoside 5-10 parts, silicon oil 5-15 parts, extreme pressure anti-wear agent 3-8 parts, antifoam agent 2-6 parts, and emulsifier 1-4 parts.

[0032] The high-efficiency water-based drilling fluid lubricant of the application is prepared by the following method, comprising the following steps:

[0033] S1, the long-chain fatty acid is added to a reaction container and heated to 110-120℃, then the polyether amine is added, and the reaction is carried out under nitrogen protection for 2-3h;

[0034] S2, after cooling to room temperature, the hydroxypropyl methyl cellulose, alkyl glycoside, silicon oil and extreme pressure anti-wear agent are added to the reaction kettle, and mixed and stirred for 20-30min;

[0035] S3, the antifoam agent and the emulsifier are further added to the reaction kettle, and the stirring is continued for 30-40min, to obtain the high-efficiency water-based drilling fluid lubricant.

[0036] The high-efficiency water-based drilling fluid lubricant of the application is applied in the field of drilling fluid. Specific embodiments

[0038] The raw materials used in the application are all from commercially available products:

[0039] Long-chain fatty acid: lauric acid: CAS: 143-07-7; stearic acid: CAS: 57-11-4; oleic acid: CAS: 112-80-1;

[0040] Polyether amine: CAS: 9046-10-0;

[0041] Hydroxypropyl methyl cellulose: CAS: 9004-65-3;

[0042] Alkyl glycoside: polyether amine-based alkyl glycoside: purity 99%; ethylene glycol alkyl glycoside: purity 99%;

[0043] Silicon oil: CAS: 63148-62-9;

[0044] Extreme pressure anti-wear agent: organic molybdenum: Jinzhou Shengda Chemical Co., Ltd., item number 011; oleic acid diethanol amide borate: Hai' an Guoyun Chemical Co., Ltd., item number 112;

[0045] Antifoam agent: polyether siloxane: CAS: 67674-67-3;

[0046] Emulsifier: octanol polyoxyethylene ether: CAS: 27252-75-1.

[0047] Example 1

[0048] A high-efficiency water-based drilling fluid lubricant, comprising the following components by weight: 40 parts of long-chain fatty acid, 45 parts of polyether amine, 10 parts of hydroxypropyl methyl cellulose, 6 parts of alkyl polyglycoside, 10 parts of silicone oil, 5 parts of extreme pressure anti-wear agent, 3 parts of antifoaming agent, and 3 parts of emulsifier; the long-chain fatty acid is lauric acid, the alkyl polyglycoside is polyether amine alkyl polyglycoside, the extreme pressure anti-wear agent is organic molybdenum, the antifoaming agent is polyether siloxane, and the emulsifier is octanol polyoxyethylene ether.

[0049] The high-efficiency water-based drilling fluid lubricant is prepared by the following method, comprising the following steps:

[0050] S1, heating long-chain fatty acid to 110℃ in a reaction container, then adding polyether amine, and performing heat preservation reaction for 3h under nitrogen protection;

[0051] S2, after cooling to room temperature, adding hydroxypropyl methyl cellulose, alkyl polyglycoside, silicone oil and extreme pressure anti-wear agent into the reaction kettle, mixing and stirring for 20min at a stirring rate of 1000rpm;

[0052] S3, further adding antifoaming agent and emulsifier into the reaction kettle, continuing to stir for 40min at a stirring rate of 900rpm, to obtain the high-efficiency water-based drilling fluid lubricant.

[0053] Example 2

[0054] A high-efficiency water-based drilling fluid lubricant, comprising the following components by weight: 50 parts of long-chain fatty acid, 60 parts of polyether amine, 5 parts of hydroxypropyl methyl cellulose, 10 parts of alkyl polyglycoside, 5 parts of silicone oil, 3 parts of extreme pressure anti-wear agent, 6 parts of antifoaming agent, and 4 parts of emulsifier; the long-chain fatty acid is stearic acid, the alkyl polyglycoside is polyether amine alkyl polyglycoside, the extreme pressure anti-wear agent is organic molybdenum, the antifoaming agent is polyether siloxane, and the emulsifier is octanol polyoxyethylene ether sodium sulfate.

[0055] The high-efficiency water-based drilling fluid lubricant is prepared by the following method, comprising the following steps:

[0056] S1, heating long-chain fatty acid to 120℃ in a reaction container, then adding polyether amine, and performing heat preservation reaction for 2h under nitrogen protection;

[0057] S2, after cooling to room temperature, adding hydroxypropyl methyl cellulose, alkyl polyglycoside, silicone oil and extreme pressure anti-wear agent into the reaction kettle, mixing and stirring for 30min at a stirring rate of 800rpm;

[0058] S3, further adding antifoaming agent and emulsifier into the reaction kettle, continuing to stir for 30min at a stirring rate of 1000rpm, to obtain the high-efficiency water-based drilling fluid lubricant.

[0059] Example 3

[0060] The high-efficiency water-based drilling fluid lubricant comprises the following components in parts by weight: 30 parts of long-chain fatty acid, 35 parts of polyether amine, 15 parts of hydroxypropyl methyl cellulose, 5 parts of alkyl glycoside, 15 parts of silicone oil, 8 parts of extreme pressure anti-wear agent, 2 parts of antifoaming agent, and 1 part of emulsifier; the long-chain fatty acid is oleic acid, the alkyl glycoside is polyether amine alkyl glycoside, the extreme pressure anti-wear agent is organic molybdenum, the antifoaming agent is polyether siloxane, and the emulsifier is octanol polyoxyethylene ether.

[0061] The high-efficiency water-based drilling fluid lubricant is prepared by the following method comprising the following steps:

[0062] S1, the long-chain fatty acid is added to a reaction container and heated to 110 DEG C, then the polyether amine is added, and the reaction is carried out under nitrogen protection for 3 hours;

[0063] S2, after cooling to room temperature, the hydroxypropyl methyl cellulose, alkyl glycoside, silicone oil and extreme pressure anti-wear agent are added to the reaction kettle, mixed and stirred for 30 minutes at a stirring speed of 900 rpm;

[0064] S3, the antifoaming agent and the emulsifier are further added to the reaction kettle, and the stirring is continued for 40 minutes at a stirring speed of 800 rpm, thereby obtaining the high-efficiency water-based drilling fluid lubricant.

[0065] Example 4

[0066] The high-efficiency water-based drilling fluid lubricant comprises the following components in parts by weight: 35 parts of long-chain fatty acid, 40 parts of polyether amine, 8 parts of hydroxypropyl methyl cellulose, 5 parts of alkyl glycoside, 13 parts of silicone oil, 6 parts of extreme pressure anti-wear agent, 3 parts of antifoaming agent, and 2 parts of emulsifier; the long-chain fatty acid is lauric acid, the alkyl glycoside is polyether amine alkyl glycoside, the extreme pressure anti-wear agent is organic molybdenum, the antifoaming agent is polyether siloxane, and the emulsifier is octanol polyoxyethylene ether.

[0067] The high-efficiency water-based drilling fluid lubricant is prepared by the following method comprising the following steps:

[0068] S1, the long-chain fatty acid is added to a reaction container and heated to 120 DEG C, then the polyether amine is added, and the reaction is carried out under nitrogen protection for 2 hours;

[0069] S2, after cooling to room temperature, the hydroxypropyl methyl cellulose, alkyl glycoside, silicone oil and extreme pressure anti-wear agent are added to the reaction kettle, mixed and stirred for 20 minutes at a stirring speed of 1000 rpm;

[0070] S3, the antifoaming agent and the emulsifier are further added to the reaction kettle, and the stirring is continued for 30 minutes at a stirring speed of 1000 rpm, thereby obtaining the high-efficiency water-based drilling fluid lubricant.

[0071] Example 5

[0072] A high-efficiency water-based drilling fluid lubricant comprises the following components by weight: 43 parts of long-chain fatty acid, 50 parts of polyether amine, 12 parts of hydroxypropyl methyl cellulose, 7 parts of alkyl glycoside, 7 parts of silicone oil, 4 parts of extreme pressure anti-wear agent, 2 parts of antifoaming agent, and 3 parts of emulsifier; the long-chain fatty acid is lauric acid, the alkyl glycoside is polyether amine alkyl glycoside, the extreme pressure anti-wear agent is organic molybdenum, the antifoaming agent is polyether siloxane, and the emulsifier is octanol polyoxyethylene ether.

[0073] The high-efficiency water-based drilling fluid lubricant is prepared by the following method comprising the following steps:

[0074] S1, the long-chain fatty acid is added to a reaction container and heated to 115℃, then the polyether amine is added, and the reaction is carried out under nitrogen protection for 2h;

[0075] S2, after cooling to room temperature, the hydroxypropyl methyl cellulose, alkyl glycoside, silicone oil and extreme pressure anti-wear agent are added to the reaction kettle, mixed and stirred for 25min, and the stirring rate is 900rpm;

[0076] S3, the antifoaming agent and the emulsifier are further added to the reaction kettle, and the stirring is continued for 35min, and the stirring rate is 900rpm, to obtain the high-efficiency water-based drilling fluid lubricant.

[0077] Comparative Example 1

[0078] Based on Example 1, the difference between Comparative Example 1 and Example 1 is that the alkyl glycoside is not included in the present comparative example, and the other steps and conditions are consistent with those in Example 1.

[0079] Comparative Example 2

[0080] Based on Example 1, the difference between Comparative Example 2 and Example 1 is that the hydroxypropyl methyl cellulose is not included in the present comparative example, and the other steps and conditions are consistent with those in Example 1.

[0081] Comparative Example 3

[0082] Based on Example 1, the difference between Comparative Example 3 and Example 1 is that the raw materials of the present comparative example comprise the following components by weight: 25 parts of long-chain fatty acid, 30 parts of polyether amine, 10 parts of hydroxypropyl methyl cellulose, 6 parts of alkyl glycoside, 10 parts of silicone oil, 5 parts of extreme pressure anti-wear agent, 3 parts of antifoaming agent, and 3 parts of emulsifier; the long-chain fatty acid is lauric acid, the alkyl glycoside is polyether amine alkyl glycoside, the extreme pressure anti-wear agent is organic molybdenum, the antifoaming agent is polyether siloxane, and the emulsifier is octanol polyoxyethylene ether, and the other steps and conditions are consistent with those in Example 1.

[0083] Example 6

[0084] Based on example 1, the difference between example 6 and example 1 is that the alkyl glycoside in this example is ethylene glycol alkyl glycoside, and the rest of the steps and conditions are consistent with those in example 1.

[0085] Example 7

[0086] Based on example 1, the difference between example 7 and example 1 is that the alkyl glycoside in this example is polyamine alkyl glycoside and ethylene glycol alkyl glycoside, and the mass ratio of the polyamine alkyl glycoside and ethylene glycol alkyl glycoside is 1:1, and the rest of the steps and conditions are consistent with those in example 1.

[0087] Example 8

[0088] Based on example 1, the difference between example 8 and example 1 is that the amount of hydroxypropyl methyl cellulose in this example is 8 parts, and the rest of the steps and conditions are consistent with those in example 1.

[0089] Example 9

[0090] Based on example 1, the difference between example 9 and example 1 is that the amount of hydroxypropyl methyl cellulose in this example is 12 parts, and the rest of the steps and conditions are consistent with those in example 1.

[0091] Example 10

[0092] Based on example 1, the difference between example 10 and example 1 is that the extreme pressure anti-wear agent in this example is oleic acid diethanol amide borate, and the rest of the steps and conditions are consistent with those in example 1.

[0093] Example 11

[0094] Based on example 1, the difference between example 11 and example 1 is that the extreme pressure anti-wear agent in this example is organic molybdenum and oleic acid diethanol amide borate, and the mass ratio of the organic molybdenum and oleic acid diethanol amide borate is 1:1, and the rest of the steps and conditions are consistent with those in example 1.

[0095] Example 12

[0096] Based on example 1, the difference between example 12 and example 1 is that the extreme pressure anti-wear agent in this example is organic molybdenum and oleic acid diethanol amide borate, and the mass ratio of the organic molybdenum and oleic acid diethanol amide borate is 1:2, and the rest of the steps and conditions are consistent with those in example 1.

[0097] Example 13

[0098] Based on Example 1, Example 13 differs from Example 1 in that the extreme pressure anti-wear agent in this example is organic molybdenum and oleic acid diethanol amide borate, the mass ratio of which is 1:3, and the remaining steps and conditions are consistent with those in Example 1.

[0099] Experimental base slurry preparation: 3 parts by weight of anhydrous sodium carbonate and 20 parts by weight of bentonite were added to 500 parts by weight of water while stirring, and after addition, stirring was continued for 5 h at a speed of 1200 rpm, and then sealed and allowed to stand for 1 d, thereby preparing the base slurry.

[0100] The above base slurry was mixed with the lubricant respectively to make the content of the lubricant 1% by weight.

[0101] Lubricating property: The method specified in the standard Q / SH1170060-2014 was used for testing, and the lubricating property was characterized by the lubricating coefficient reduction rate; the test results are shown in Table 1.

[0102] Table 1 Lubricating property test

[0103]

[0104]

[0105] Extreme pressure anti-wear property: The base slurry was mixed with the water-based drilling fluid lubricant respectively to make the content of the lubricant 1% by weight, and high-speed stirring was carried out for 3 min, and the extreme pressure value of the base slurry and the base slurry with 1% water-based drilling fluid lubricant added was tested respectively by using an E-P extreme pressure lubricator under the conditions of a speed of 1200 rpm, a torque of 100 inch-pounds, and a time of 4 min, and the extreme pressure anti-wear property was characterized by the extreme pressure value; the test results are shown in Table 2.

[0106] Table 2 Extreme pressure anti-wear property test

[0107]

[0108] Anti-sloughing inhibition property: 10 g of drilling fluid swelling test bentonite dried at 105℃±2℃ for 4 h was weighed and loaded into a shale swelling instrument test cylinder, and was pressurized to 4.0 MPa and maintained for 5 min to prepare a test core. The test cylinder loaded with the core was installed on the shale swelling instrument, and water-based drilling fluid lubricant with a concentration of 5% was injected into the measuring cylinder, and the swelling amount was measured for 8 h, and distilled water was used as a blank test, and the anti-sloughing inhibition property was characterized by the shale swelling reduction rate; the test results are shown in Table 3.

[0109] Table 3 Anti-sloughing inhibition property test

[0110]

[0111]

[0112] Results analysis

[0113] As can be seen from the data of Examples 1-13, Comparative Examples 1-3 and Tables 1, 2 and 3, the high-efficiency water-based drilling fluid lubricant prepared by the application has excellent lubricating performance, extreme pressure and wear resistance, can lubricate the well wall and effectively reduce the wear of the drill bit. At the same time, it also has the performance of anti-sloughing and inhibition, so that the well wall can be effectively stabilized during drilling. Moreover, the preparation process is simple and convenient to implement. When the ratio of the alkyl polyglycoside, the limited hydroxypropyl methyl cellulose and the alkyl polyglycoside, and the ratio of the limited organic molybdenum and the oleic acid diethanolamide borate are used, the lubricity, extreme pressure and wear resistance, and the anti-sloughing and inhibition of the lubricant can be further improved.

[0114] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: any equivalent changes made on the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A high performance water-based drilling fluid lubricant, characterized in that, Comprising the following components by weight: 30-50 parts of long chain fatty acid, 35-60 parts of polyether amine, 5-15 parts of hydroxypropyl methyl cellulose, 5-10 parts of alkyl glycoside, 5-15 parts of silicone oil, 3-8 parts of extreme pressure anti-wear agent, 2-6 parts of antifoam agent, 1-4 parts of emulsifier; The alkyl glycoside comprises one or more of polyether amine-based alkyl glycoside, ethylene glycol alkyl glycoside, and polyamine-based alkyl glycoside; The weight ratio of the hydroxypropyl methyl cellulose to the alkyl glycoside is (4-6):3; The extreme pressure anti-wear agent is organic molybdenum and oleic acid diethanolamide borate in a weight ratio of 1:(1-3).

2. The high performance water-based drilling fluid lubricant of claim 1, wherein, The long chain fatty acid comprises one of lauric acid, stearic acid, and oleic acid.

3. The high performance water-based drilling fluid lubricant of claim 1, wherein, The antifoam agent comprises polyether siloxane.

4. The high performance water-based drilling fluid lubricant of claim 1, wherein, The emulsifier is one or both of octyl alcohol polyoxyethylene ether and octyl alcohol polyoxyethylene ether sodium sulfate.

5. A method of preparing the high performance water-based drilling fluid lubricant as claimed in any one of claims 1 to 4, characterized in that, Comprising the following steps: S1. After heating the long chain fatty acid to 110-120℃ in a reaction vessel, adding polyether amine, and conducting heat preservation reaction for 2-3h under nitrogen protection; S2. After cooling to room temperature, adding hydroxypropyl methyl cellulose, alkyl glycoside, silicone oil, and extreme pressure anti-wear agent into the reaction kettle, mixing and stirring for 20-30min; S3. Further adding antifoam agent and emulsifier into the reaction kettle, continuing to stir for 30-40min to obtain the high-efficiency water-based drilling fluid lubricant.

6. The method of making a high efficiency water-based drilling fluid lubricant of claim 5, wherein, In the steps S2 and S3, the stirring rate is 800-1000rpm.

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