4results about How to "Improve sand control effect" patented technology

This utility model relates to the field of water pump equipment technology, specifically to a submersible motor for wells with enhanced sand-proof performance. It includes a cover plate, a motor mount, and a sand-proof device. The sand-proof device includes a sand-proof seat, a sand-throwing sleeve, wear-resistant components, and auxiliary components. The sand-proof seat is positioned between the cover plate and the motor mount. The sand-throwing sleeve is fixedly connected to the sand-proof seat. The wear-resistant components are respectively positioned on the sand-proof seat and the motor mount. By setting the sand-proof seat between the cover plate and the motor mount, and setting the sand-throwing sleeve and wear-resistant components on the sand-proof seat, the sand-proof seat has better wear resistance. When the wear resistance of the sand-proof seat is enhanced, the gap between the sand-throwing sleeve and the sand-proof seat can be maintained for a long time, preventing sand and other impurities from entering the motor mount through the gap between the sand-proof seat and the sand-throwing sleeve. Therefore, the service life of the sand-proof seat is improved, thereby improving the sand-proof performance and service life between the motor mount and the cover plate, and preventing water ingress and damage to the motor.

The sand control pad provided by the utility model comprises a bottom box and a plurality of claw rollers, and the claw rollers are arranged on the bottom box. The pet sand control mat has the advantages that the claw rollers are arranged on the bottom box and can play a supporting role, meanwhile, a pet can improve interactivity with the sand control mat by playing the claw rollers, the sand control effect is improved, in addition, sand is located under the feet of the pet, the sand can be rapidly promoted to leak out from the feet by playing the claw rollers through the claws of the pet, and the pet is more convenient to use. Further, the liquid drops on the bottom box; by arranging the claw rollers made of sisal hemp materials, the entertainment of the pet on the sand control pad can be further improved, and the sand control effect is improved; the upper cover is arranged to be buckled on the bottom box, so that the claw roller can be limited between the upper cover and the bottom box, and jumping of the claw roller is prevented; all the parts are detachably connected and are convenient to mount, replace and replace, when part of the parts are damaged, the damaged parts can be replaced, and interchangeability is good; and the gap is formed in the joint of the upper cover or the bottom box, so that the cat litter can be conveniently poured.

This application provides a coupled sand control and ecological restoration system and its construction method, relating to the fields of ecological environment restoration and sand control technology. The system includes: multiple vertically installed power generation components, arranged along the prevailing wind direction of the area to be restored, with the light-receiving surface of the power generation components perpendicular to or at an acute angle to the prevailing wind direction; sand-blocking components, laid on the surface of the area to be restored, with different laying angles at different locations within the area; and vegetation planted on the ground between the power generation components, and in the area below and / or around the sand-blocking components. This method aims to significantly improve the sand control effect, system stability, and resource utilization efficiency in desertified areas.

The invention provides high-temperature resin precoated sand for sand prevention of a heavy oil thermal production well as well as a preparation method and application of the high-temperature resin precoated sand. The high-temperature resin precoated sand for sand prevention of the heavy oil thermal production well is prepared from the following components in parts by mass: 4.2 to 5.6 parts of modified phenolic resin, 1.2 to 1.6 parts of organic silicon resin, 0.6 to 0.8 part of polyimide resin, 0.1 to 0.2 part of a reinforcing agent, 0.2 to 0.3 part of a toughening agent, 0.03 to 0.05 part of a silane coupling agent, 0.15 to 0.25 part of a catalyst and 100 parts of quartz sand. The high-temperature resin precoated sand for sand prevention of the heavy oil thermal production well can be consolidated at medium and low temperature reservoir temperatures, and the consolidated high-temperature resin precoated sand is high in compressive strength, good in permeability and excellent in sand blocking performance. The thermal decomposition temperature of the resin film of the precoated sand exceeds 390 DEG C, the precoated sand still has high strength and good thermal stability after being aged at the temperature of 300 DEG C, the sand prevention validity period can be prolonged, and the precoated sand is suitable for sand prevention of a heavy oil thermal production well.