Tackifier for oil-based drilling fluid and preparation method thereof

A technology of oil-based drilling fluid and viscosity raising agent, applied in chemical instruments and methods, drilling compositions, inorganic chemistry, etc., can solve the problem of increasing organic soil, oil-based drilling fluid fluid loss control polymer and other materials Increased amount, water-based drilling fluid viscosifier is not suitable for oil-based drilling fluid, oil-based drilling fluid environmental protection needs to be improved, etc., to improve the colloidal stability of the dispersion system, strong chemical activity and physical adsorption performance, strong chemical activity and physical adsorption sexual effect
CN110564384AActive Publication Date: 2019-12-13重庆威能钻井助剂有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
重庆威能钻井助剂有限公司
Publication Date
2019-12-13

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Abstract

The invention discloses a tackifier for an oil-based drilling fluid and a preparation method of the tackifier. The tackifier comprises the following components in parts by mass: 2-5 parts of modifiedorganic soil, 2-4 parts of modified vegetable gum, 1-3 parts of thermoplastic elastic resin, 5-10 parts of acrylic acid, 3-5 parts of hydroxymethyl cellulose, 1-3 parts of a quaternary ammonium salt,0.5-1.5 parts of an emulsifier, 3-6 parts of base oil and 0.05-0.15 part of an initiator, wherein the modified organic soil is preferably activated and modified bentonite, the modified vegetable gum is preferably hydroxypropyl guar gum, and the initiator is a mixture of ammonium sulfate and sodium sulfite in a mass ratio of 1: (2-4). The tackifier for the oil-based drilling fluid can overcome thedefect that a water-based drilling fluid tackifier is not applicable to the oil-based drilling fluid, is beneficial for reducing the preparation cost of an oil-based drilling fluid system and improving the overall environmental protection performance of the oil-based drilling fluid, and plays an important role in improving the performance of the oil-based drilling fluid and application of the oil-based drilling fluid.
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Description

Technical field

[0001] The invention belongs to the technical field of drilling aids, and specifically relates to a viscosity-lifting agent for oil-based drilling fluids and a preparation method thereof. Background technique

[0002] Oil-based drilling fluid is a drilling fluid that uses oil as the continuous phase. It is divided into two types: water-in-oil oil-based drilling fluid and all-oil-based drilling fluid. It is mainly composed of base oil, organic soil, emulsifier, and wetting It is composed of additives, tackifiers and weighting agents. Oil-based drilling fluid has good inhibition, temperature resistance and stability, and can better meet the needs of complex formation drilling, coring operations, underbalanced drilling, large-length horizontal wells and other special situations, and can be a safe and efficient oil and gas field. Development provides reliable technical support.

[0003] Oil-based drilling fluid viscosity enhancer is an important component of oil-based...

Claims

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