A kind of chrome leather shavings toughened cement slurry and its preparation method

A technology of cementing slurry and chrome leather chips, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., to achieve the effects of reducing pollution, small damage, and low cost

Active Publication Date: 2016-01-06
古莱特科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Including the above-mentioned documents, there is no record of using chrome leather chips in cement slurry, and the present invention proposes for the first time

Method used

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  • A kind of chrome leather shavings toughened cement slurry and its preparation method
  • A kind of chrome leather shavings toughened cement slurry and its preparation method
  • A kind of chrome leather shavings toughened cement slurry and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of chrome leather shavings toughening cement slurry, each component and weight are respectively:

[0031] Chrome leather shavings (diameter 0.02mm): 4g

[0032] Acrylamide / 2-acrylamide-2-methylpropanesulfonate sodium (AM / AMPS) copolymer: 32g

[0033]

[0034] Preparation method: in accordance with API standards: fully mix water, additive components, and G-grade oil well cement.

Embodiment 2

[0036] A kind of chrome leather shavings toughening cement slurry, each component and weight are respectively:

[0037] Chrome leather shavings (diameter 0.05mm): 1.6g

[0038] Acrylamide / 2-acrylamide-2-methylpropanesulfonate sodium (AM / AMPS) copolymer: 16g

[0039]

[0040] Preparation method: in accordance with API standards: fully mix water, additive components, and G-grade oil well cement.

Embodiment 3

[0042] A kind of chrome leather shavings toughening cement slurry, each component and weight are respectively:

[0043]

[0044] Preparation method: According to API standards: fully mix water, additive components, and G-grade oil well cement.

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Abstract

The invention relates to chrome leather shaving toughening and cementing cement slurry and a preparation method thereof. The chrome shaving toughening and cementing cement slurry is prepared from the components with the weight of cement as a standard in terms of the weight percentage of the cement: 0.05-2.0 percent of chrome leather shaving, 1-5 percent of fluid loss additive, 0.5-2.5 percent of dispersant, 0.1-0.5 percent of defoamer and 0-0.5 percent of retarder. The chrome leather shaving toughening and cementing cement slurry is prepared by fully and uniformly mixing the components and cement with a certain amount according to an API (American Petroleum Institute) standard. With the adoption of the chrome leather shaving toughening and cementing cement slurry, due to strong impact resistance, perforations have small damage to a cement sheath, and the problem of secondary cross flow is solved fundamentally; as the effective components in the chrome leather shaving toughening and cementing cement slurry has the actions of improving the toughness and the crack resistance of set cement, and the engineering performances of the cement slurry are not influenced; in addition, the chrome leather shaving toughening and cementing cement slurry is low in the cost, can be used for reducing the pollution of tanning wastes to the environment and provides a new way for recycling and reusing the wastes in the tannery industry.

Description

technical field [0001] The invention belongs to the field of oilfield cementing cement slurry, in particular to a chrome leather chip toughened cementing slurry and a preparation method thereof. Background technique [0002] At present, most oil fields in China have entered the mid-to-late stage of exploitation. In order to improve the life of oil wells and ensure stable and high production, the quality of cementing has become a prominent problem faced by oil and gas cementing projects. With the continuous development of cementing technology, the cement sheath is required to have good mechanical ductility and mechanical crack resistance to resist the impact of the drill string, as well as the requirements of various damages such as perforation and fracturing. If the mechanical properties of the cement sheath fail to meet the requirements, the phenomenon of "secondary channeling" may occur, and even the sealing effect of the cement sheath will completely fail. Therefore, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/487
CPCC04B22/087C04B28/00C04B2103/0018C04B2103/22C04B2103/408C04B2103/465C04B2103/50C09K8/467C09K8/487C09K2208/08
Inventor 郭丽梅王威
Owner 古莱特科技股份有限公司
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