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Yield-increasing foam discharging agent as well as preparation method and application thereof

A technology of foaming agent and initiator, which is applied in chemical instruments and methods, earth square drilling, mining fluids, etc. It can solve the problems of poor foam removal effect and insufficient liquid carrying capacity of foam removal rods, and achieve increased production, easy purchase and Transport, the effect of a wide range of applications

Pending Publication Date: 2021-12-03
王陆瑶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a foam defoaming agent for increasing production and its preparation method and application, so as to solve the problems of insufficient liquid carrying capacity and poor foam defoaming effect of existing foam defoaming rods in oil and gas wells

Method used

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  • Yield-increasing foam discharging agent as well as preparation method and application thereof
  • Yield-increasing foam discharging agent as well as preparation method and application thereof
  • Yield-increasing foam discharging agent as well as preparation method and application thereof

Examples

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preparation example Construction

[0074] The present invention also provides a kind of preparation method of increasing production defoaming agent, comprises the following steps:

[0075]Preparation of the first foam removal rod: mix the ammonium salt and the first surfactant uniformly according to the above ratio, put it into a conventional cylindrical stainless steel mold, press it into a rod by a pressure of more than 20 tons, and obtain the first foam removal rod;

[0076] Preparation of the second foam removal rod: mix the nitrite and the second surfactant evenly according to the above ratio, put it into a conventional cylindrical stainless steel mold, press it into a rod by a pressure of more than 20 tons, and obtain the second foam removal rod ;

[0077] Preparation of the trigger rod: After mixing the solid acid and the third surfactant uniformly according to the above ratio, put it into a conventional cylindrical stainless steel mold, and press it into a rod by a pressure of more than 20 tons to obtai...

Embodiment 1

[0088] 12g of ammonium chloride and 3g of sodium dodecylbenzenesulfonate were mixed uniformly, put into a stainless steel cylindrical mold and pressed into a first bubble removal rod with a diameter of 2.5cm. Mix 16g of sodium nitrite and 4g of sodium dodecylbenzene sulfonate evenly, put it into a stainless steel cylindrical mold and press it into a second foam removal rod with a diameter of 2.5cm; put the first foam removal rod and the second foam removal rod into a 100mL graduated cylinder, measure 40ml of hot water at 80°C, and pour it into the graduated cylinder. The first foam row rod and the second foam row rod dissolve, and the reaction generates a large amount of gas and heat. The reaction is very violent. After 14 minutes, foam rushes out of the measuring cylinder. The relationship between the volume of the gas-liquid mixture in the measuring cylinder and the time is as follows: figure 1 As shown, the relationship between the temperature and time of the gas-liquid mix...

Embodiment 2

[0090] 12g of ammonium chloride and 3g of sodium dodecylbenzenesulfonate were mixed uniformly, put into a stainless steel cylindrical mold and pressed into a first bubble removal rod with a diameter of 2.5cm. Mix 16g sodium nitrite and 4g sodium dodecylbenzene sulfonate evenly, put it into a stainless steel cylindrical mold and press it into a second foam removal rod with a diameter of 2.5cm; mix 1g sulfamic acid and 0.3g dodecylbenzene The sodium sulfonate is mixed evenly, put into a stainless steel cylindrical mold and press to form an initiator rod with a diameter of 2.5 cm. Put the first foam removal rod and the second foam removal rod into a 100mL measuring cylinder, measure 40ml of water at 40°C, pour it into the measuring cylinder, the foam removal rod dissolves slowly in the measuring cylinder, no gas is generated, and no heat is released. After 1 minute, take the trigger rod and put it into the graduated cylinder, the solution in the graduated cylinder reacts violentl...

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Abstract

The invention provides a yield-increasing and foam-discharging agent and a preparation method and application thereof, the yield-increasing and foam-discharging agent comprises a first foam-discharging rod and a second foam-discharging rod; the first foam discharging rod comprises ammonium salt; and the second bubble discharging rod comprises nitrite. The yield-increasing foam discharging agent is remarkable in yield-increasing effect, can be used for high-temperature wells with the well temperature larger than 60 DEG C and can also be used for low-temperature wells with the well temperature smaller than 60 DEG C (a small number of initiating rods are added).

Description

technical field [0001] The invention relates to a foam defoaming agent for increasing production and its preparation method and application, and belongs to the technical field of increasing production of oil and gas wells in the petroleum industry. Background technique [0002] During the production process of gas wells, natural gas is continuously extracted. As natural gas is produced, water liquid continues to flow out, and over time, more and more liquids accumulate in gas wells. Accumulated to a certain height, the pressure increases, suppressing the production of natural gas. In this case, a certain amount of defoaming sticks (mostly surfactants) can be put in to reduce the surface tension of the effusion and mix with natural gas to form foam. Due to the small foam density, formation natural gas can continue to be produced as the foam breaks through the fluid pressure. If the degree of fluid accumulation is high, the production capacity of the gas production well can...

Claims

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Application Information

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IPC IPC(8): C09K8/58C09K8/592C09K8/60E21B43/22
CPCC09K8/58C09K8/592C09K8/602E21B43/16
Inventor 王陆瑶王安士
Owner 王陆瑶
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