Development Of Feeding Device For Continuous Mixing Of Acid Liquid

Continuous mixed fracture acidizing technology is the first with liquid,then the construction of conventional process is changed to "liquor while injection" continuous construction process.All configuration liquid,chemical additives to join in the construction process,not only realize real-time adjust all sorts of chemical material and liquid ratio,also can be made according to the actual construction situation of different liquid,there is no liquid waste,shortage of liquid,the phenomenon such as restrictions on construction,and can effectively improve the efficiency of fracturing acidizing.This paper introduces the mixed for sending device research status at home and abroad,familiar with the domestic and foreign continuous mixed for sending device manufacturing level,detailed introduces the mixed for sending device application prospect in the field of oil and gas field development.Paper first introduces the continuous mixed acid for device design requirements,design scheme and design principle of the device is an important part of,like,powder add device,liquid mixing tank structure add device,paste to add device,suction and discharge flow meter,power and control system,etc.,has carried on the design and optimization.In addition,through on-the-spot investigation,combined with the fracturing acidizing treatment site construction conditions and construction scale and initial solution to the design of equipment have been adjusted,the whole device is decomposed into two sets of small device: simple continuous acid device and double continuous device with acid.Among them,the largest single unit discharge capacity can reach 7 m3/min,two sets of devices used in combination with the maximum discharge capacity can reach 10 m3/min.Mixing device can realize water,acid,powder,paste,and all kinds of liquid continuous mixed and additives for send;Set with acid,liquid powder,liquid added,the overall mix and function in a body fluid for;Acid mixed evenly,mixing effect is good,high quality.Device to the device prizing structure and bring dynamic system,small volume,light weight,has the advantages of cover an area of an area small,easy to handle.In Changqing gas acid job in a field experiment,using effect showed that the device can greatly improve the efficiency of liquor quality and liquor,reduce labor costs,reduce the acid tank storage quantity,avoid the waste of concentrate,produce great economic value.Device is suitable for the station and field fracturing acidizing treatment field,can satisfy the operation demand of major oil and gas fields.