Fire-resistant pointing material in petroleum industry and construction process of fire-resistant pointing material

A technology for the oil industry and jointing materials, which is applied to the refractory masonry structure jointing materials and their construction technology in the petroleum industry, and the field of refractory materials. It can solve the problems of uneven internal strength of refractory mortar and achieve high thermal shock resistance and durability. The effect of improving the bulk density

Active Publication Date: 2014-03-19
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, further studies have found that the internal strength of refractory mortar is not uniform after high temperature calcination

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0045] As the best embodiment of the present invention, it consists of the following components by mass percentage: Portland cement 30%, powdery refractory mud 33%, fly ash 25%, alumina micropowder 10%, sodium tripolyphosphate or Sodium hexametaphosphate or water glass 1%, the balance is water.

Embodiment 3

[0047] The best implementation mode as this processing method is: comprise the following steps:

[0048] (1) Batching: batching raw materials according to mass percentage;

[0049] (2) Mix the raw materials in step (1) according to the ratio and stir for more than 5 minutes;

[0050] (3) Use the materials obtained in step (2) for jointing within 2 hours after the stirring is completed;

[0051] (4) Natural maintenance after pointing is completed.

[0052] In the batching step, when the outdoor temperature is above 10°C, when the Portland cement type 42.5 is selected, its dosage is 35%, and when Portland cement 52.5R is used, its parameter is 28%.

[0053] In the batching step, when the outdoor temperature is below 9°C, when 42.5R Portland cement is selected, its dosage is 35%, and when Portland cement 52.5R is used, its parameter is 30%.

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Abstract

The invention discloses a fire-resistant pointing material in petroleum industry, and relates to the field of petrochemical industry. The fire-resistant pointing material comprises the following components by mass percent: 25-40% of silicate cement, 30-45% of powdery refractory mortar, 20-30% of coal ash, 8-12% of alumina micro powder, 0.5-1% of sodium tripolyphosphate or sodium hexametaphosphate or sodium silicate and the balance of water. The strength loss of counter-fire surface of mortar can be effectively reduced, the physical influence caused by high-temperature baking is borne by a protective layer, so that the average strength of the fire-resistant mortar is higher, and the potential quality hazard caused by the reduced strength of the counter-fire surface of the mortar is effectively avoided.

Description

[0001] technical field [0002] The invention relates to the field of petrochemical industry, specifically to a refractory material, in particular to a refractory masonry structure pointing material in the petroleum industry and a construction process thereof, which provide fire protection for masonry mortar of a firewall. Background technique [0003] In the process of oil and gas production, blowout operation is required after oil testing. The so-called blowout refers to the process of artificially opening the wellhead for oil and gas testing during oil and gas exploration and development, so that the oil and gas in the well can be sprayed out of the well and burned in a controlled manner. In order to prevent the sprayed flames from burning the surrounding vegetation, crops or structures, a firewall must be built at the outlet of the discharge pipeline. [0004] Due to the difference in the pressure of underground natural gas in oil testing and blowout operations, the blo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 付文涛李川江吴静兰杰谢圣杰
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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