Design method for acid proof truck-mounted blender
A sand mixing vehicle and anti-acid technology, which is applied in the direction of earthwork drilling, mining fluid, wellbore/well components, etc., can solve the problems of sand mixing fluid overflow, pollution, unsafe hidden dangers, etc., and increase acid gas recovery and neutralization Device, increase the application range, reduce the effect of formation damage
Active Publication Date: 2012-07-04
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD CHANGQING DOWNHOLE TECH CO
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Problems solved by technology
[0004] 1. The material of water supply system, mixing system and discharge system is not acid-proof, and normal construction cannot be guaranteed after being corroded by acid, and problems cannot be solved in time
[0005] 2. The structure of the sand mixing tank is open, and part of the sand mixing liquid often overflows during construction. After using the acid liquid, the acid liquid splashes out and causes personal injury, equipment damage and environmental pollution.
[0006] 3. After the acid overflows and splashes on the operators, it cannot be quickly neutralized on site, posing unsafe hazards
Method used
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[0026] Example figure 1 As shown, the rear part of the body 20 of the anti-acid sand mixing vehicle is fixedly connected with the sand conveying mechanism 22 through the hydraulic support 21. The sand conveying mechanism 22 is a double-barrel double sand bucket screw sand conveyer, and the left and right sand conveyers can be separated 45 during construction. °. During construction with a small amount of sand, the left and right sand conveyors can work and measure independently. An acid gas neutralization treatment device is installed on the compartment platform of the acid-proof sand mixing vehicle body 20. The acid gas neutralization treatment device consists of an acid gas neutralization tank 1, an acid gas discharge pipeline 2, an acid gas suction pump 3, and an acid gas suction pipeline 4 are sequentially sealed and connected to each other. The acid gas neutralization tank 1 and the acid gas suction pump 3 are fixed on the compartment platform of the acid-proof sand mixi...
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The invention relates to technical equipment in liquid dispensing fracturing construction technology of oil-gas fields, in particular to a design method of an acid-proof truck-mounted blender, and is characterized in that the body (20) of the acid-proof truck-mounted blender is connected with an acid gas neutralization control device, a mixing sand tank (5) and a sand conveying mechanism (22), wherein the mixing sand tank (5) is a sealed tank and is respectively in sealed communication with the acid gas neutralization control device and the sand conveying port of the sand conveying mechanism (22). The equipment can meet the technical requirements for acid liquor fracturing, thereby expanding the application range of the truck-mounted blender and achieving the purpose of transforming formation and reducing formation damage; and the equipment has the characteristics of preventing acid liquor from splashing to cause injuries to persons, reducing damage of the equipment and environmental pollution.
Description
technical field [0001] The technology of the invention relates to the construction technology and equipment of hydraulic distribution fracturing in oil and gas fields, in particular to a design method of an acid-proof sand mixing vehicle. Background technique [0002] When collecting oil and gas in oil and gas fields, sand mixer trucks are usually used to mix high-pressure, high-sand ratio fracturing sand, water, chemical additives and other proppants through the sand mixer truck, and then pump them into the bottom of the well for fracturing through the fracturing pump. [0003] The ubiquitous problems of existing sand mixers are: [0004] 1. The material of water supply system, mixing system and discharge system is not acid-proof, and normal construction cannot be guaranteed after being corroded by acid, and problems cannot be solved in time. [0005] 2. The structure of the sand mixing tank is open, and part of the sand mixing liquid often overflows during construction. A...
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IPC IPC(8): E21B43/27
Inventor 孙虎赵维斌白明伟付长赢付军刚王继红贾凯雄
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD CHANGQING DOWNHOLE TECH CO