Preparation method of high-strength heat-resistant oil field well cementation rubber plug

A preparation method and cementing glue technology, which is applied in the field of oilfield cementing glue, can solve problems such as steel pipe breakage, steel pipe damage, and impact on oilfield cementing, and achieve the effects of preventing damage, improving strength, and facilitating oilfield cementing operations

Inactive Publication Date: 2017-02-01
枣阳市恒泰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The main processes of oilfield exploration and development are geological exploration, geophysical prospecting, drilling, mud logging, logging, cementing, well completion, perforation, oil production, workover, incremental production, transportation and processing, etc., and oilfield cementing is one of them. When cementing in the oil field, it is necessary to select high-quality steel pipes and fill the wellbore and steel pipe annulus with cement. However, when cementing, it often happens that the steel pipes will be damaged by oil, gas, etc. Damage occurs due to erosion, and the steel pipe will break, which will affect the cementing of the oil field and the oil and gas production of the oil field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First, put 12 parts of styrene-butadiene rubber and 10 parts of silica gel into the same pulverizer, mix and grind them into a powder state, then put the ground mixed powder into a mixing tank, and use a stirrer to mix and stir for 5 minutes. ;Put 20 parts of 65-mesh rubber powder in the mixing tank, and use the heating tube built in the mixing tank to raise the temperature inside the mixing tank to 120°C, and use the agitator to fully stir the raw materials in the mixing tank for 15 minutes; Put 15 parts of silicon micropowder, 5 parts of floating beads, 3 parts of clay, 12 parts of calcium carbonate, and 1 part of white carbon black into the mixing tank in sequence, and use the heating tube to maintain the temperature in the mixing tank at 135 °C. Stir the raw materials for 12 minutes; keep the temperature in the mixing tank at 100°C, put 2 parts of plasticizer and 3 parts of softener into the mixing tank, and stir thoroughly for 5 minutes; keep the temperature in the ...

Embodiment 2

[0022] First, put 15 parts of styrene-butadiene rubber and 30 parts of silica gel together into the same mill and grind them into a powder state, then put the ground mixed powder into the mixing tank, and use a stirrer to mix and stir for 12 minutes. ;Put 30 parts of 65-mesh rubber powder in the mixing tank, and use the heating tube built in the mixing tank to raise the temperature inside the mixing tank to 150°C, and use the agitator to fully stir the raw materials in the mixing tank for 20 minutes; Put 25 parts of silicon micropowder, 8 parts of floating beads, 10 parts of clay, 15 parts of calcium carbonate, and 3 parts of white carbon black into the mixing tank in sequence, and use the heating tube to maintain the temperature in the mixing tank at 160 °C. Stir the raw materials for 15 minutes; keep the temperature in the mixing tank at 120°C, put 6 parts of plasticizer and 9 parts of softener into the mixing tank, and stir thoroughly for 10 minutes; keep the temperature in ...

Embodiment 3

[0025] First, put 14 parts of styrene-butadiene rubber and 20 parts of silica gel into the same pulverizer, mix and grind them into a powder state, then put the ground mixed powder into a mixing tank, and use a stirrer to mix and stir for 9 minutes. ;Put 25 parts of 65-mesh rubber powder in the mixing tank, and use the heating tube built in the mixing tank to raise the temperature inside the mixing tank to 138°C, and use the agitator to fully stir the raw materials in the mixing tank for 18 minutes; Put 20 parts of silicon micropowder, 6 parts of floating beads, 6.5 parts of clay, 13 parts of calcium carbonate, and 2 parts of white carbon black into the mixing tank in sequence, and use the heating tube to maintain the temperature in the mixing tank at 150°C. Stir the raw materials for 13 minutes; keep the temperature in the mixing tank at 110°C, put 4 parts of plasticizer and 6 parts of softener into the mixing tank, and stir thoroughly for 7 minutes; keep the temperature in th...

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PUM

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Abstract

The invention discloses a preparation method of a high-strength heat-resistant oil field well cementation rubber plug. The oil field well cementation rubber plug is prepared from, by weight, 20-30 parts of 65-mesh rubber powder, 12-15 parts of butadiene styrene rubber, 10-30 parts of silica gel, 15-25 parts of silica powder, 5-8 parts of floating beads, 3-10 parts of argil, 12-15 parts of calcium carbonate, 1-3 parts of white carbon black, 1-5 parts of an anti-aging agent, 1.5-4 parts of an anti-scorching agent, 2-6 parts of a plasticizing agent and 3-9 parts of a softening agent. The overall strength, high temperature resistance and heat resistance of the rubber plug can be greatly improved, the adsorption capacity, acid and alkali resisting and corrosion resisting capacity, high temperature resistance, mechanical strength, insulating property, heat stability and chemical stability of the rubber plug can be greatly improved, steel tubes for oil field well cementation can be protected and prevented from being damaged by external factors, and thus smooth oil field well cementation can be promoted.

Description

technical field [0001] The invention relates to the technical field of oilfield cementing glue, in particular to a preparation method of a high-strength heat-resistant oilfield cementing glue plug. Background technique [0002] The main processes of oilfield exploration and development are geological exploration, geophysical prospecting, drilling, mud logging, logging, cementing, well completion, perforation, oil production, workover, incremental production, transportation and processing, etc., and oilfield cementing is one of them. When cementing in the oil field, it is necessary to select high-quality steel pipes and fill the wellbore and steel pipe annulus with cement. However, when cementing, it often happens that the steel pipes will be damaged by oil, gas, etc. Damage occurs due to corrosion, and the steel pipe will break, which will affect the cementing of the oil field and the oil and gas production of the oil field. Contents of the invention [0003] Based on the...

Claims

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Application Information

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IPC IPC(8): C08L21/00C08L9/06C08L83/04C08K13/02C08K3/36C08K3/34C08K3/26C08K5/17
CPCC08L21/00C08K2201/014C08L83/04C08L2201/08C08L2201/14C08L2205/03C08L9/06C08K13/02C08K3/36C08K3/346C08K2003/265C08K5/17
Inventor 何发丽
Owner 枣阳市恒泰化工有限公司
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