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Natural feather plugging fiber used for drilling of oil and gas wells in oil fields and preparation method thereof

A technology for oil and gas wells and feathers, which is applied in the directions of fiber processing, chemical instruments and methods, drilling compositions, etc., can solve the problems of high cost, polluted environment, easy to cause cancer, etc., and achieves low cost, no environmental pollution, Good dispersion effect

Inactive Publication Date: 2010-02-03
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are mainly two kinds of plugging fibers used in drilling, one is processed cotton fiber, which has a higher cost; the other is asbestos fiber, which is low in price and better in effect, but has biological activity, pollutes the environment, and is easy to cause cancer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A natural feather plugging fiber for oil and gas well drilling in an oil field, comprising: chicken feathers, surfactant OP-10, washing powder, caustic soda, tap water, and its components (parts by weight) are:

[0038] Chicken Feather (water content 15%) 100 parts

[0039] Surfactant OP-10 0.2 parts

[0040] 0.4 parts of washing powder

[0041] Caustic soda 1.0 parts

[0042] 120 parts of tap water

[0043] A preparation method of natural feather plugging fiber for drilling oil and gas wells in an oil field, comprising the following steps:

[0044] First, inject 120 parts of water into the liquid distribution tank with agitator;

[0045] Second, stir under normal temperature and pressure, the speed of the agitator is 400 rpm, add 0.4 parts of washing powder and 1.0 parts of caustic soda respectively, and prepare the treatment liquid;

[0046] Thirdly, put 100 parts of chicken feathers into the treatment liquid, stir for 0.5h, and then let stand for 24h.

[0047] ...

Embodiment 2

[0049] A natural feather plugging fiber for oil and gas well drilling in an oil field, comprising: duck feathers, surfactants, sodium alkylbenzene sulfonate, KOH, tap water, and its components (parts by weight) are:

[0050] 105 parts of duck feathers (water content 20%)

[0051] Surfactant SP-80 0.1 parts

[0052] Surfactant OP-10 0.2 parts

[0053] Sodium alkylbenzene sulfonate 0.6 parts

[0054] KOH 1.0 parts

[0055] 120 parts of tap water

[0056] A preparation method of natural feather plugging fiber for drilling oil and gas wells in an oil field, comprising the following steps:

[0057] First, inject 120 parts of water into the liquid distribution tank with agitator;

[0058] Second, stir under normal temperature and pressure, the stirrer speed is 400 rpm, add 0.6 part of sodium alkylbenzenesulfonate and 1.0 part of KOH respectively, and prepare the treatment solution;

[0059] Thirdly, put 105 parts of duck feathers into the treatment liquid, stir for 0.5h, and t...

Embodiment 3

[0062]A natural feather plugging fiber for oil and gas well drilling in an oil field, comprising: goose feather, surfactant sodium alkylbenzenesulfonate, sodium alkylbenzenesulfonate ABS, Na 2 CO 3 , tap water, its component (weight part) is:

[0063] Goose feather (20% water content) 110 parts

[0064] Sodium alkylbenzene sulfonate 0.4 parts

[0065] 0.3 parts of sodium alkyl phthalein sulfonate

[0066] Na 2 CO 3 3.0 copies

[0067] 120 parts of tap water

[0068] A preparation method of natural feather plugging fiber for drilling oil and gas wells in an oil field, comprising the following steps:

[0069] First, inject 120 parts of water into the liquid distribution tank with agitator;

[0070] Second, stir under normal temperature and normal pressure, the stirrer speed is 400 rpm, add 0.4 part of sodium alkylbenzenesulfonate ABS, Na 2 CO 3 3.0 parts, prepared as a treatment solution;

[0071] Thirdly, put 110 parts of goose feathers into the treatme...

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Abstract

The invention provides a natural feather plugging fiber used for drilling of oil and gas wells in oil fields and a preparation method thereof. The fiber comprises 100-120 parts of poultry feathers (with water content less than 25%), 0.2-0.4 part of surfactant, 0.0-0.8 part of washing agent, 1.0-3.0 parts of alkaline defatting agents and 120 parts of clear water. The preparation method comprises the following steps: firstly, pouring 120 parts of tap water into a liquid mixing tank; secondly, under normal temperature and normal pressure, adding 0.0-0.8 part of washing agent and 1.0-3.0 parts ofalkaline defatting agents respectively and stirring the mixture for 0.5h to prepare treatment liquid; thirdly, placing the poultry feathers into the treatment liquid to be stirred and then standing for 24h; fourthly, cleaning the treated poultry feathers with clear water and filtering and drying the poultry feathers, placing the poultry feathers into surfactant solution to be stirred for 0.5h andthen soaked, taking out the poultry feathers to be baked and ground, and sieving 95% of the products by a 10-mesh sieve. The fiber has the characteristics of good dispersibility, good plugging effect,low manufacturing cost and no environmental pollution.

Description

technical field [0001] The invention belongs to the field of petroleum drilling, and in particular relates to a natural feather plugging fiber for drilling oil and gas wells in oil fields and a preparation method thereof. Background technique [0002] Lost circulation is the phenomenon that various working fluids (including drilling fluid, cement slurry, completion fluid and other fluids, etc.) leak into the formation under the action of pressure difference during various downhole operations such as drilling, cementing, and logging. Drilling fluid loss is a common downhole complication in drilling operations. According to statistics, when drilling in oil and gas areas with severe lost circulation, about 5% to 10% of the drilling time is spent on dealing with the loss of drilling fluid. Once leakage occurs, not only the drilling time will be delayed, the drilling fluid will be lost, and the geological logging work will be disturbed, but it may also cause a series of complex ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/42D06M19/00
Inventor 杨振杰张金乐吴伟韩波
Owner XI'AN PETROLEUM UNIVERSITY
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