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Slag mtc cementing fluid and preparation method thereof

A technology of cementing fluid and slag, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., and can solve problems affecting the quality of cementing, poor cementation quality, slow performance of activators and activating aids, etc.

Active Publication Date: 2017-01-04
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a slag MTC The cementing fluid and its preparation method overcome the above-mentioned deficiencies in the prior art, and it can effectively solve the problem of existing slag MTC When the temperature of the cementing fluid is low, the performance of the activator and activator is too slow, resulting in poor cementation quality, which affects the cementing quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 , the slag MTC Cementing fluid, the raw material contains drilling fluid in parts by weight 45 parts to 50 part, activator 17 parts to 20 Parts, Activation Auxiliary 5 parts to 7 parts, blast furnace water quenched slag 20 parts to 40 parts, water 20 parts to 40 share.

Embodiment 2

[0017] Example 2 , the slag MTC Cementing fluid, the raw material contains drilling fluid in parts by weight 45 copies or 50 part, activator 17 copies or 20 Parts, Activation Auxiliary 5 copies or 7 parts, blast furnace water quenched slag 20 copies or 40 parts, water 20 copies or 40 share.

Embodiment 3

[0018] Example 3 , the slag MTC The cementing fluid is prepared according to the following method: add the required amount of activator and activation aid to the required amount of water and stir to form a mixed liquid, add the required amount of drilling fluid to the mixed liquid and stir evenly, then add The required amount of blast furnace water-quenched slag is stirred evenly to obtain slag MTC cementing fluid.

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PUM

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Abstract

The invention relates to the field of cementing fluid and preparation techniques thereof and discloses slag MTC (Mud-To-Cement) cementing fluid and a preparation method thereof. The slag MTC cementing fluid is prepared from the raw materials in parts by weight: 45-50 parts of drilling fluid, 17-20 parts of activator, 5-7 parts of activation assistant, 20-40 parts of water-quenched blast furnace slag and 20-40 parts of water. The average compressive strength of slag MTC cured substances obtained after the slag MTC cementing fluid disclosed by the invention is thickened 6 and 48 hours later at the temperature of 30 DEG C and 35 DEG C to 85 DEG C is improved differently compared with the existing slag MTC cured substances, so that the cementation quality of the slag MTC cured substances obtained after the slag MTC cementing fluid disclosed by the invention is thickened is better compared with the existing slag MTC cured substances, and the cementing requirements can be better met.

Description

technical field [0001] The invention relates to the technical field of cementing fluid and its preparation, and is a kind of slag MTC Cementing fluid and its preparation method. Background technique [0002] slag MTC The technology is to make use of the water loss reduction and suspension properties of the drilling fluid in drilling engineering, add blast furnace water quenching slag, activator, activation aid, and a small amount of retarder if necessary, so that the drilling fluid can be converted into a product that can completely match the performance of the oil well. Cement slurry equivalent or better than slag MTC cementing fluid. MTC The slurry has the characteristics of good rheology, easy to adjust thickening time, and good settlement stability; the direct cost is lower than that of oil well cement with the same performance; it has good compatibility with drilling fluid, can improve displacement efficiency, and thus improve cementing quality. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/467
CPCC09K8/467
Inventor 杨吉祥苏洪生郑永生徐淼王钰闫智顾龙辉蒙雄鹰温培源
Owner BC P INC CHINA NAT PETROLEUM CORP
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