Enhancer for high-temperature resistant oil-based drilling fluid as well as preparation method and application of enhancer

An oil-based drilling fluid and diesel-based drilling fluid technology, which is applied in the field of drilling fluids used in petroleum resource exploration and development technology, can solve the problems of less cutting-lifting agent products, unsatisfactory performance, and less cutting-lifting agents, etc. The effect of solving the poor rock-carrying ability and solving the settlement of barite
CN104592959AInactive Publication Date: 2015-05-06BC P INC CHINA NAT PETROLEUM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2015-05-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides enhancer for high-temperature resistant oil-based drilling fluid as well as a preparation method and application of the enhancer. The preparation method comprises the following steps: a, sequentially adding 150-250 parts by weight of dimer acids, 100-150 parts by weight of triethylene glycol momobutyl ether, 30-50 parts by weight of diethanol amine into a reaction container; stirring and performing heat reaction; b, adding 10-17 parts by weight of organic enamine for further reacting, and reducing the temperature after the reaction is finished; c, adding triethylene glycol momobutyl ether having the same weight parts in the step a and 20-30 parts by weight of propylene carbonate, uniformly stirring so as to obtain the enhancer for the high-temperature resistant oil-based drilling fluid. The invention also provides the enhancer for the high-temperature resistant oil-based drilling fluid prepared by using the preparation method and application of the enhancer in the oil-based drilling fluid. According to the enhancer, the shearing force of the oil-based drilling fluid can be improved, and the problems of barite sedimentation and poor carrying debris capability caused by low shearing force of the oil-based drilling fluid with high oil-water ratio can be solved.
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Description

technical field

[0001] The invention provides a high-temperature-resistant oil-based drilling fluid cutting agent and its preparation method and application, and relates to the technical field of exploration and development of oil resources in deep wells, ultra-deep wells and extended-displacement horizontal wells, in particular, it relates to the exploration and development of oil resources. The field of drilling fluids used in the development of technology. Background technique

[0002] With the deepening of my country's petroleum exploration and development, more and more technical difficulties and complex situations are faced in drilling construction, such as drilling high-temperature and high-pressure deep wells, highly inclined directional wells, extended-reach horizontal wells and super water-sensitive formations. complex formation wells. Oil-based drilling fluids have some incomparable advantages over water-based drilling fluids, such as high temperature stability, h...

Claims

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