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A kind of foam drilling fluid based on nano silicon dioxide material

A nano-silica and nano-material technology, applied in the field of drilling fluid, can solve the problem that foam drilling fluid cannot meet strict requirements, and achieve the effect of meeting cuttings carrying requirements, reducing erosion and good rheology

Active Publication Date: 2016-02-10
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of geological drilling work in the direction of deeper drilling and more complex geological conditions, ordinary foam drilling fluid cannot meet the strict requirements of some drilling projects

Method used

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  • A kind of foam drilling fluid based on nano silicon dioxide material
  • A kind of foam drilling fluid based on nano silicon dioxide material
  • A kind of foam drilling fluid based on nano silicon dioxide material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The foam drilling fluid based on nano-silica material provided in this example includes water, a foaming agent, a foam stabilizer and nano-silica particles with a particle size of 10-20 nm, wherein the foaming agent is lauryl Sodium benzenesulfonate and foam stabilizer are selected from carboxymethyl cellulose.

[0026] The preparation method of the foam drilling fluid based on nano-silica material provided in this embodiment is as follows:

[0027] First, according to the following mass percentages: foaming agent 0.1%, foam stabilizer 0.1%, nanomaterials 0.05-0.125%, water balance, weigh water, foaming agent, foam stabilizer and nanomaterials;

[0028] Then add water to the stirring device first, then add foaming agent, foam stabilizer and nanomaterials in sequence, and stir for 60s at a speed of 10,000 rpm to obtain a foam drilling fluid based on nano-silica materials.

[0029] In this example, in order to investigate the effect of the addition amount of nano-silica ...

Embodiment 2

[0035] The foam drilling fluid based on nano-silica material provided in this example includes water, a foaming agent, a foam stabilizer and nano-silica particles with a particle size of 10-20 nm, wherein the foaming agent is lauryl Sodium benzenesulfonate and xanthan gum are selected as foam stabilizer.

[0036] The preparation method of the foam drilling fluid based on nano-silica material provided in this embodiment is as follows:

[0037] First, according to the following mass percentages: foaming agent 0.1%, foam stabilizer 0.1%, nanomaterials 0.05-0.125%, water balance, weigh water, foaming agent, foam stabilizer and nanomaterials;

[0038] Then add water to the stirring device first, then add foaming agent, foam stabilizer and nanomaterials in sequence, and stir for 60s at a speed of 10,000 rpm to obtain a foam drilling fluid based on nano-silica materials.

[0039] In this example, in order to investigate the effect of the addition amount of nano-silica on the foaming...

Embodiment 3

[0045] The foam drilling fluid based on nano-silica material provided in this example includes water, a foaming agent, a foam stabilizer and nano-silica particles with a particle size of 10-20 nm, wherein the foaming agent is lauryl Sodium sulfate, foam stabilizer select carboxymethyl cellulose for use.

[0046] The preparation method of the foam drilling fluid based on nano-silica material provided in this embodiment is as follows:

[0047] First, according to the following mass percentages: foaming agent 0.1%, foam stabilizer 0.1%, nanomaterials 0.05-0.125%, water balance, weigh water, foaming agent, foam stabilizer and nanomaterials;

[0048] Then add water to the stirring device first, then add foaming agent, foam stabilizer and nanomaterials in sequence, and stir for 60s at a speed of 10,000 rpm to obtain a foam drilling fluid based on nano-silica materials.

[0049] In this example, in order to investigate the effect of the addition amount of nano-silica on the foaming vo...

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Abstract

The invention provides a foam drilling fluid based on a nano silicon dioxide material. The foam drilling fluid at least comprises the following compositions by weight percent: 0.1 to 0.3 percent of the foaming agent, 0.1 to 0.3 percent of foam stabilizer, 0.05 to 0.125 percent of nano material and the balance of water, wherein the nano material is the nano silicon dioxide particles with the granularity of 10nm to 20nm. The nano silicon dioxide material can seal a nano pore throat of a stratum, so that the corrosion of water on rocks can be reduced, the foam size of the foam drilling fluid can be increased, and the half-life period of the foam can be prolonged; and the foam drilling fluid based on the nano silicon dioxide material is high in viscosity and cutting parameters, therefore, the requirement for carrying rock debris by the low-pressure stratum and stabilizing the well wall can be completely met.

Description

technical field [0001] The invention relates to a drilling fluid used in the fields of oil and gas drilling, geological drilling and the like, in particular to a recyclable three-phase water-based foam drilling fluid. Background technique [0002] In the process of drilling low-pressure leakage formations, the use of traditional water-based drilling fluids cannot achieve near-balanced or under-balanced drilling, and there will be varying degrees of damage to the reservoir; air drilling will cause little damage to the reservoir, but the implementation of the process Complicated and expensive. Foam drilling fluid uses certain surfactants combined with polymers to generate foam, forming a foam network that can prevent or delay drilling fluid from invading the formation. Its low density and low liquid column pressure characteristics can have good adaptability to formation pressure. In addition, the foam drilling fluid has good leakage prevention and plugging effect, and the ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/38
Inventor 蔡记华袁野曹伟建
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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