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Drag-reduction film composition

A technology of composition and initiator, applied in drilling composition, production fluid, wellbore/well components, etc., can solve the problem of high friction resistance of water-carrying sand pumping, and achieve good fluidity and strong affinity. Effect

Inactive Publication Date: 2019-03-22
CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a drag-reducing film composition to solve the problem of high friction in water-carrying sand pumping

Method used

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Embodiment 1

[0018] This example discloses a drag reducing film composition, which is prepared by using the following raw materials in parts by mass: 740 parts of water, 70 parts of acrylamide, 80 parts of 2-acrylamido-2-methylpropanesulfonic acid, polyene 30 parts of amine, 80 parts of dimethyl diallyl ammonium chloride and 5 parts of initiator; wherein the initiator is selected from ammonium persulfate, and the polyenylamine is selected from vinylamine. The drag reducing film composition may also include the following raw materials, 1% sodium hydroxide solution.

[0019] The above-mentioned drag reducing film composition is prepared by the following method:

[0020] (1) Add water in the reactor and heat up to 70°C;

[0021] (2) Stir the materials in the reactor, add acrylamide, 2-acrylamido-2-methylpropanesulfonic acid, vinylamine, dimethyl diallyl ammonium chloride to the reactor in turn, after the raw materials are added , continue stirring for 20 minutes and then stop;

[0022] (3)...

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Abstract

The invention belongs to the technical field of drag-reduction film composition for oil field production increase, and particularly discloses drag-reduction film composition. The drag-reduction film composition is prepared from raw materials as follows: water, acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, polyene amine, dimethyl diallyl ammonium chloride and an initiator. The drag-reduction film composition in the scheme has excellent drag-reduction performance, a propping agent is coated with a drag-reduction film by the prepared drag-reduction film composition, and after the propping agent is added to clear water, the drag-reduction film can be rapidly dissolved in the clear water and performs drag-reduction on the clear water.

Description

technical field [0001] The invention belongs to the technical field of drag-reducing compositions for increasing production in oil fields, and in particular relates to a drag-reducing film composition. Background technique [0002] In the process of oil and gas field development and production, when oil and gas wells are drilled, fracturing is required and put into production. After the production of oil and gas wells reaches a certain stage, the productivity and permeability gradually decrease. In order to increase the production capacity of oil and gas wells and increase the production of oil and gas wells, fracturing is required. technology to transform. The fracturing process is divided into two categories: hydraulic fracturing and high-energy gas fracturing. At present, hydraulic fracturing is mostly used for fracturing. Fracturing fluid is an important part of hydraulic fracturing. Water-based fracturing fluid is prepared by adding thickeners and additives to water as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/68C09K8/80
CPCC09K8/68C09K8/805C09K2208/28
Inventor 刘洪国熊帆熊鹰
Owner CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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