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Preparation method and construction method of quick-setting polymer synthetic modified emulsified asphalt water shutoff agent

A technology of emulsified asphalt and water blocking agent, which is applied in the direction of chemical instruments and methods, earthwork drilling, drilling compositions, etc., which can solve the problems of increasing mining costs, loss of plugging effect, formation plugging and reduction of oil displacement effect and other problems, to achieve the effects of long pressure duration, reduced duration, and improved mining efficiency

Active Publication Date: 2021-11-05
SHANDONG NORTH CHUANGXIN WATERPROOF SCI & TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The high temperature, high salinity formation water in the oil well formation environment, continuous drop in formation pressure during oil recovery and uncertain rock formation pore conditions put forward higher requirements for subsequent continuous oil recovery and oil displacement technology. Common emulsified asphalt water shutoff agents In addition to simple plugging and oil displacement functions, as the temperature rises and the pressure continues to decrease in the oil well formation, the formation plugging and oil displacement effects will be greatly reduced or gradually lose the plugging effect, thereby continuously increasing the production cost. When the cost of extraction is higher than the value of the extracted crude oil, the work of oil extraction loses its practical significance

Method used

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  • Preparation method and construction method of quick-setting polymer synthetic modified emulsified asphalt water shutoff agent
  • Preparation method and construction method of quick-setting polymer synthetic modified emulsified asphalt water shutoff agent
  • Preparation method and construction method of quick-setting polymer synthetic modified emulsified asphalt water shutoff agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 1. Composition

[0043] Composition of anionic emulsified asphalt solution (take 1000 kg formulation quantity as an example)

[0044] Chambord 70A base asphalt 480kg, mid-crack fast-setting type (LT-405A) tall oil anionic emulsifier 7kg, mid-crack fast-setting type (PM-3372) potassium oleate anionic emulsifier 5kg, non-ionic alkylphenol polyoxygen Vinyl ether emulsifier (OP-10) 2.0kg, isotridecyl alcohol polyoxyethylene ether emulsifier (1310) 2.5kg, non-ionic phosphate emulsifier (RE-610) 1.0kg, sodium carboxymethylcellulose (CMC) 0.8 kg, silicone defoamer (BYK-024) 0.6 kg, sodium hydroxide 50% aqueous solution 1.9 kg, demineralized water 499.2 kg.

[0045] Composition of powder slurry (take 100 kg formula quantity as an example)

[0046] Nano light calcium carbonate 23kg, wollastonite 18kg, kaolin 14kg, sodium bentonite 1.5, sodium hydroxide 0.3kg, polyacrylic acid ammonium salt dispersant 1.8kg, alkyl polyoxyethylene ether (OP-20) 0.6kg, isomer thirteen Alcohol po...

Embodiment 2

[0060] 1. Composition

[0061] Composition of anionic emulsified asphalt solution (take 1000 kg formulation quantity as an example)

[0062] Chambord 70A base asphalt 522kg, mid-crack fast-setting type (LT-405A) tall oil anionic emulsifier 8.5kg, mid-crack fast-setting type (PM-3372) potassium oleate anionic emulsifier 5.3kg, non-ionic alkylphenol Polyoxyethylene ether emulsifier (OP-10) 2.7kg, isomeric tridecyl alcohol polyoxyethylene ether emulsifier (1310) 3.1kg, non-ionic phosphate emulsifier (RE-610) 1.3kg, carboxymethyl fiber Sodium plain (CMC) 1.0 kg, silicone defoamer (BYK-024) 0.7 kg, sodium hydroxide 50% aqueous solution 2.1 kg, demineralized water 453.3 kg.

[0063] Composition of powder slurry (take 100 kg formula quantity as an example)

[0064] Nano light calcium carbonate 22 kg, wollastonite 18 kg, kaolin 14 kg, sodium bentonite 1.5, sodium hydroxide 0.3 kg, polyacrylic acid ammonium salt dispersant 1.8 kg, alkyl polyoxyethylene ether (OP-20) 0.6 kg, isomerize...

Embodiment 3

[0070] 1. Composition

[0071] Composition of anionic emulsified asphalt solution (take 1000 kg formulation quantity as an example)

[0072] Chambord 70A base asphalt 497kg, mid-crack fast-setting type (LT-405A) tall oil anionic emulsifier 8kg, mid-crack fast-setting type (PM-3372) potassium oleate anionic emulsifier 5kg, non-ionic alkylphenol polyoxygen Vinyl ether emulsifier (OP-10) 2.5kg, isomerized tridecyl alcohol polyoxyethylene ether emulsifier (1310) 3kg, non-ionic phosphate emulsifier (RE-610) 1.2kg, sodium carboxymethylcellulose ( CMC) 0.9 kg, silicone defoamer (BYK-024) 0.6 kg, sodium hydroxide 50% aqueous solution 2 kg, demineralized water 479.8 kg.

[0073] Composition of powder slurry (take 100 kg formula quantity as an example)

[0074] Nano light calcium carbonate 22.5kg, wollastonite 18kg, kaolin 14.5kg, sodium bentonite 1.5, sodium hydroxide 0.3kg, polyacrylic acid ammonium salt dispersant 1.8kg, alkyl polyoxyethylene ether (OP-20) 0.6kg, isomerization Tri...

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Abstract

The invention provides a preparation method and construction method of a quick-setting polymer synthetic modified emulsified asphalt water shutoff agent and belongs to the technical field of materials. According to the preparation method and construction method of the quick-setting polymer synthetic modified emulsified asphalt water shutoff agent, stratum pores are quickly blocked under a high-temperature stratum condition, stratum pressure is kept, an oil layer is displaced from a high-temperature stratum to a range near a shaft of an oil well which is subjected to oil extraction in advance according to a certain method and direction, so that the oil extraction efficiency and the oil extraction quantity are greatly improved. the water shutoff agent can be used for oil well formation water shutoff under the environment of 60-120 DEG C and the stratum water mineralization degree of (20,000-25,000), and can effectively improve the oil production and the oil production efficiency, thereby playing an extremely important role in reducing the cost and increasing the yield of the oil well.

Description

technical field [0001] The invention relates to the technical field of emulsified asphalt water blocking agent, in particular to a preparation and construction method of a fast-setting polymer synthesis modified emulsified asphalt water blocking agent. Background technique [0002] The high temperature, high salinity formation water in the oil well formation environment, continuous drop in formation pressure during oil recovery and uncertain rock formation pore conditions put forward higher requirements for subsequent continuous oil recovery and oil displacement technology. Common emulsified asphalt water shutoff agents In addition to simple plugging and oil displacement functions, as the temperature rises and the pressure continues to decrease in the oil well formation, the formation plugging and oil displacement effects will be greatly reduced or gradually lose the plugging effect, thereby continuously increasing the production cost. When the cost of extraction is higher t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/467E21B33/138
CPCC09K8/467E21B33/138
Inventor 王荣博辛海洋
Owner SHANDONG NORTH CHUANGXIN WATERPROOF SCI & TECH GRP CO LTD
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