30results about How to "Excellent extreme pressure lubricity" patented technology

The invention relates to a wear-resistant drag reducer for drilling fluid and a preparation method thereof. The wear-resistant drag reducer is characterized in that a formula of the wear-resistant drag reducer is prepared from the following main raw materials: vegetable oil acid, cotton seed oil, sulfur powder, diethanol amine and kerosene; the auxiliary raw materials comprise tributyl phosphate, organic soil and T323 anti-wear reagent at extreme pressure. The wear-resistant drag reducer for drilling fluid comprises the following components in percentage by weight based on the total amount of the drag reducer: 7-13 percent of vegetable oil acid, 26-31 percent of cotton seed oil, 6-11 percent of sulfur powder, 3-5 percent of diethanol amine, 27-29 percent of kerosene and 12-17 percent of auxiliary materials and other materials. The method for preparing the wear-resistant drag reducer for drilling fluid comprises a sulfonation reaction, an amidation reaction and a mixed reaction. When the wear-resistant drag reducer is used for drilling, the drag reducer can be adsorbed to the surface of a drilling tool preferentially, a dense high-strength protective film is generated, the lubricating property of the drilling fluid is reduced, the friction and wear of the metal surface are reduced, an extreme pressure lubrication coefficient and a mud cake adhesion coefficient of the drilling fluid are effectively reduced, blockage and other accidents in the drilling process are reduced.

The invention relates to a water-soluble rust prevention cutting fluid which contains the following components in parts by weight: 4.5-15.5 parts of p-tertiary butylbenzoic acid, 1.2-8.1 parts of benzoic acid, 1.5-11 parts of decanedioic acid, 0.5-5.1 parts of monoethanolamine, 2.3-10.8 parts of triethanolamine, 0.091-1.1 parts of benzotriazole, 4.5-11 parts of diethylene glycol, 2.3-10.5 parts of monoisopropanolamine, 4.5-15.5 parts of polyethylene glycol and 19-31 parts of water. the invention also relates to a preparation method of the water-soluble rust prevention cutting fluid provided by the invention, which comprises the following steps: mixing the p-tertiary butylbenzoic acid, the benzoic acid, the decanedioic acid, the monoethanolamine, the triethanolamine and part of the water, and reacting to obtain a mixture A; mixing the benzotriazole, the monoisopropanolamine and the rest of the water, and reacting to obtain a mixture B; and mixing the diethylene glycol, the polyethylene glycol, the mixture A and the mixture B, and reacting to obtain the finished product.

The invention discloses a totally-synthesized water-based stainless steel cutting liquid. The cutting liquid contains the following components: a stainless steel water-based extreme-pressure agent, caprylic-capric acid, boric acid triethanolamine ester, polyethylene glycol, a cation quaternary ammonium salt metal filings settling agent, a dicarboxylic compound antirusting agent, a monobutyl ether coupling agent, a hard-water-resisting agent, a defoamer and distilled water. By virtue of an environmental-friendly total-synthesis formula, the cleaning and settling properties of the cutting liquid are enhanced; an environmental-friendly special water-based extreme-pressure lubricant is used to substitute for the traditional synthetic ester, thereby ensuring the long-time stability of the cleaning and settling properties of the cutting liquid. The cutting liquid plays a very good role in protecting non-ferrous metal and ferrous metal; by virtue of the cation quaternary ammonium salt settling agent, the problem of iron filings settling during the processing of stainless steel is eliminated, and the transparency and stability of the cutting liquid in long-time use are guaranteed.

The invention provides a plugging extreme-pressure lubricant as well as a preparation method and application of the plugging extreme-pressure lubricant. The plugging extreme-pressure lubricant comprises 70wt%-85wt% of modified vegetable oil, 2wt%-5wt% of extreme-pressure anti-wear agent and 8wt%-15wt% of surfactant. According to the plugging extreme-pressure lubricant provided by the invention, the modified vegetable oil which is easily biodegraded is adopted, and a sulfur-type additive with good extreme-pressure and anti-wear properties is added, so that the lubricant is environment-friendly,good in extreme-pressure lubricating property and compatibility, capable of obviously improving the quality of a mud cake in a drilling fluid and good in plugging effect and can be favorably appliedto a well drilling site and can be applied to wear and resistance reduction during well drilling operation of a large-displacement horizontal well, a directional well, a long open hole deep well, a complex structural well and the like.

The invention discloses water-soluble cutting fluid. The cutting fluid consists of the following components in percentage by weight: 15 to 25 percent of oleate-2-ethylhexyl ester, 2 to 8 percent of 3,5,5-trimethyl caproic acid, 3 to 10 percent of sebacic acid, 5 to 10 percent of mono ethanolamine, 15 to 20 percent of triethanolamine, 5 to 10 percent of diglycol, 3 to 10 percent of monoisopropanolamine, 15 to 20 percent of polyethylene glycol 600 and 20 to 30 percent of water. The invention also discloses a preparation method of the water-soluble cutting fluid. The method comprises the following steps of: reacting by mixing the oleate-2-ethylhexyl ester, the mono ethanolamine, the 3,5,5-trimethyl caproic acid and a part of water to obtain alkylol amine synthesis ester mixture A; reacting by mixing the sebacic acid, the triethanolamine, the monoisopropanolamine and the rest amount of water to obtain alkylol amine synthesis ester mixture B; and reacting by mixing the diglycol, the polyethylene glycol 600, the alkylol amine synthesis ester mixture A and the alkylol amine synthesis ester mixture B to obtain a finished product.

The invention relates to a wet leveling liquid composition and use thereof, and mainly solves the problem that wet leveling liquid cannot meet the requirement that a down rate is greater than 3.0 percent in the leveling process in the prior art. By adopting a technical scheme that: the wet leveling liquid composition comprises the following components in part by weight: a) 5 to 50 parts of antirust additive; b) 1 to 12 parts of cleaning agent; c) 0.5 to 10 parts of lubricating agent; and d) 28 to 93.5 parts of water, the invention better solves the problem and can be used in the leveling process of cold-rolled steel sheets.

The invention relates to a micro-nano blocking lubricant for a drilling fluid and a preparation method thereof and belongs to the field of oil and gas field drilling and oilfield chemical auxiliary agents. The micro-nano blocking lubricant for the drilling fluid is prepared from the following components in parts by weight: 100-200 parts of a nano emulsion and 100 parts of composite graphite micropowder. The micro-nano blocking lubricant for the drilling fluid also contains a dispersant. The nanoemulsion is prepared from components including paraffin, white oil, a composite emulsifier, a co-emulsifier and water by a phase inversion emulsification method. The micro-nano blocking lubricant for the drilling fluid can resistant the temperature of 150 DEG C, does not have adverse effects to viscosity of the drilling fluid, can reduce the filter loss of the drilling fluid remarkably, improve the quality of mud cakes remarkably, reduce the frictional resistance of a drilling tool and improve the mechanical drilling speed, and can bridge and block micro-cracks of shale quickly by means of a small size effect to prevent solid particles and a filtrate from invading the stratum to achieve a good blocking effect, so that the micro-nano blocking lubricant for the drilling fluid is particularly suitable for blocking fine throats which are 0.05-50[mu]m.