Petroleum drilling additive high temperature-resistant filtrate reducer and preparation method thereof

A technology for oil drilling and fluid loss reducer, which is applied in the fields of oil drilling aids and fluid loss reducers for drilling fluids, can solve the problems of reducing the fluid loss of drilling mud, etc., and achieves the reduction of fluid loss and good temperature resistance. Effect

Active Publication Date: 2012-07-11
石家庄华莱鼎盛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an anti-high temperature fluid loss additive for oil drilling, which can resist high temperature, saturated brine and seawater, can effectively reduce the fluid loss of drilling mud, and does not increase viscosity. , so as to solve the problems of mud resistance to temperature and salt in deep well and ultra-deep well drilling, and keep the rheology of the mud in good condition

Method used

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  • Petroleum drilling additive high temperature-resistant filtrate reducer and preparation method thereof
  • Petroleum drilling additive high temperature-resistant filtrate reducer and preparation method thereof
  • Petroleum drilling additive high temperature-resistant filtrate reducer and preparation method thereof

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Embodiment 1

[0023] Embodiment 1: the fluid loss reducer of the present invention (the described petroleum drilling aid anti-high temperature fluid loss reducer) is made from the raw materials of following weight ratio:

[0024] Lignite (or peat or weathered coal, that is, substances containing humic acid) 360 kg, sodium metabisulfite 90 kg, water 1500 kg, silicone resin 60 kg, crosslinking agent (formaldehyde) 45 kg, potassium hydroxide 90 kg, AMPS (2-acrylamido-2-methylpropanesulfonic acid) 90 kg, α-methyl glucoside (methyl glucoside) 150 kg.

[0025] The preparation method of the described petroleum drilling aid anti-high temperature fluid loss reducer, it (sequentially) comprises the following steps: (1), water, potassium hydroxide, lignite (or peat or weathered coal), sodium pyrosulfite Add it into the stirred reactor, seal it, raise the temperature to 160°C, react for 2 hours, and cool down to below 60°C (such as 55°C). This step improves the temperature resistance and viscosity redu...

Embodiment 2

[0026] Embodiment 2: the fluid loss reducer of the present invention (the described petroleum drilling aid anti-high temperature fluid loss reducer) is made from the raw materials of following weight ratio:

[0027] lignite or peat or weathered coal (substances containing humic acid) 240 kg or 300 kg, sodium metabisulfite 150 kg or 240 kg, water 900 kg or 1200 kg, silicone resin 30 kg or 150 kg, crosslinking agent (formaldehyde ) 6 kg or 30 kg, potassium hydroxide 120 kg or 150 kg, AMPS (2-acrylamido-2-methylpropanesulfonic acid) 30 kg or 120 kg, α-methyl glucoside (methyl glucoside) 60kg or 240kg.

[0028] The preparation method of the described petroleum drilling aid anti-high temperature fluid loss reducer, it (sequentially) comprises the following steps: (1), add water, potassium hydroxide, lignite or peat or weathered coal, sodium pyrosulfite according to the above weight and stir In a reaction kettle, seal it, heat up to 165°C (or 155°C), react for 3 hours (or 2.5 hours...

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Abstract

A petroleum drilling additive high temperature-resistant filtrate reducer and a preparation method thereof. The filtrate reducer is prepared by the following raw materials by weight: a humic acid-containing substance, sodium pyrosulfite, water, organic silicon resin, a cross-linking agent, potassium hydroxide, AMPS, alpha-methylglucoside. The preparation method of the filtrate reducer comprises the following steps: weighing water, potassium hydroxide, lignite or peat or weathered coal, sodium pyrosulfite according to the weight parts, adding into a stirring reaction vessel, sealing, heating, reacting, cooling; adding organic silicon resins, cross-linking agents, AMPS, alpha-methylglucoside weighed according to the weight parts into the stirring reaction vessel, sealing, heating, stirring and reacting; discharging the materials, drying the product to obtain a finished product. The finished product can resist a high temperature of 220 DEG C, can resist saturated brine and seawater, effectively reduces drilling mud filtration loss, does not cause tackification, and thus solves the problems of temperature resistance and salt resistance of mud in deep well, ultra-deep well drilling.

Description

technical field [0001] The invention relates to a fluid loss reducer for drilling fluid, which belongs to petroleum drilling additives, in particular to a high temperature resistant fluid loss additive for petroleum drilling. The invention also relates to a preparation method of the oil drilling additive anti-high temperature fluid loss reducer. Background technique [0002] At present, there is less and less shallow crude oil in the world, and the mining depth is getting deeper and deeper, but there is still a shortage of drilling aids for deep and ultra-deep wells. At present, some products on the market are only resistant to high temperature but not to salt, or are excessively viscosified, and other auxiliary materials need to be added to allow drilling to proceed normally. Drilling mud fluid loss, non-viscosifying petroleum drilling aid. CN101560378A discloses an anti-slump dilution fluid loss additive for drilling fluid and a preparation method thereof. The fluid loss...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/03
Inventor 赵秀平张建锋
Owner 石家庄华莱鼎盛科技有限公司
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