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A kind of preparation method of fast drilling agent for drilling fluid

A drilling fluid, weight ratio technology, applied in the field of drilling fluid additives, can solve problems such as unsatisfactory performance

Inactive Publication Date: 2011-11-30
延增国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although foreign countries have been ahead of us for many years, most of them are not ideal in performance, and there are always shortcomings of one kind or another.

Method used

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  • A kind of preparation method of fast drilling agent for drilling fluid

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the examples, but the present invention is not limited.

[0014] 【Example】

[0015] Put 250kg of animal oil into the reaction kettle, heat it to 180°C, add 25kg of oleic acid and 30kg of chlorinated stearic acid into the reaction kettle, stir slowly and evenly, keep it warm for 90min, and cool it naturally for 12h; then add 100kg of propyl Trimethylammonium chloride, 100kg chlorinated paraffin, 150kg mechanical oil, 50kg triethanolamine, and finally add 25kg ethylene glycol; when it is cold, it can be properly heated before feeding, and finally add an appropriate amount of water and stir well to obtain the product SAPO -1 type drilling fluid fast drilling agent.

[0016] Using the drilling simulation experiment device of the Jet Fluidics Research Center of the University of Petroleum, the drill bit diameter is 92mm, the drilling pressure is 13.62kN, the rotation speed is 100rpm, the bit pressure ...

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PUM

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Abstract

The invention discloses a preparation method of a fast drilling agent for drilling fluid, which can greatly increase the drilling speed. This fast drilling agent has a good ability to inhibit shale hydration expansion and dispersion, which is conducive to maintaining the stability of the wellbore; it has good high temperature resistance and anti-pollution ability, and can be used in medium-deep wells and deep wells; it can be used with water-based drilling fluid system Good compatibility, basically does not affect the rheological properties and fluid loss of drilling fluid; has a good effect of protecting oil and gas layers; non-toxic and non-polluting. The field application of drilling fluid fast drilling agent shows that the mechanical drilling rate can be increased by more than 20%, thereby shortening the drilling time, saving the drilling cost, and having good social and economic benefits.

Description

technical field [0001] The invention relates to a drilling fluid additive, which is used in the field of drilling speed increase, and adopts a new formula and process to produce a drilling fluid fast drilling agent that meets national standards, has low cost, good quality and is environmentally friendly. Background technique [0002] When drilling a wellbore, drilling fluid is typically circulated through the drill pipe, through the drill bit and up to the annulus around the drill pipe to circulate cuttings out of the wellbore and cool the drill bit. The drilling fluid contains components such that the density of the drilling fluid provides a bottom hole pressure approximately equal to or greater than the pore pressure of fluids in the formation through which the wellbore is being drilled and also provides a pressure not greater than that which causes the formation to fracture through which the wellbore is being drilled. Pressure of pressure. Drilling fluids often also cont...

Claims

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Application Information

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IPC IPC(8): C09K8/035
Inventor 延增国郭天顺刘国奇刘准肖齐
Owner 延增国
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