The vacuum negative pressure drying screen of Wuchang Company is a kind of vibrating screening equipment that combines the vacuum micro negative pressure device and the centrifugal force of the excitation motor based on the improvement of the intelligent drilling fluid vibrating screen, that is, it is equipped with ordinary vibrating screens. The function adds the micro-negative pressure adsorption function, which makes the liquid phase purification of the drilling mud more thorough, the discharged solid phase is drier, and the liquid removal effect is better. The principle of the vacuum negative pressure drying screen is to install a set of vacuum adsorption device under the filter screen of the ordinary drilling fluid vibrating screen to form a micro negative pressure through the pulsating airflow to perform a certain frequency of vacuum suction action, thereby improving the purification and recovery of the drilling fluid , To reduce the difficulty of purification of the slurry to be treated in the subsequent process. Under the dual action of centrifugal vibration and micro-negative pressure, it effectively reduces the 20-30% fluid content of drilling cuttings discharged after treatment, improves overall drilling efficiency, greatly reduces the total amount of drilling waste, and reduces subsequent discarded cuttings Cost of disposal.

Wuchang vacuum micro-negative pressure device can also install a set of micro-negative pressure adsorption device in the user’s existing old vibrating screen through upgrading and transformation to realize vacuum micro-negative pressure adsorption for secondary drilling fluid recovery and use before drilling cuttings are discharged. The discharged cuttings are drier. The vacuum micro-negative pressure device can also play a good anti-clogging effect of the filter screen in the mud processing work.

Product features of vacuum negative pressure drying screen:

1. The vacuum negative pressure drying screen can be used for the purification and recovery of various oil-bearing and non-oil-bearing drilling muds in petroleum drilling.

2. The vacuum negative pressure drying screen is subjected to the dual action of centrifugal vibration and micro negative pressure to effectively reduce the liquid content of the drilling cuttings discharged after treatment by 20-35%.

3. Wuchang vacuum micro-negative pressure device can install a set of micro-negative pressure adsorption device in the user's existing old vibrating screen through upgrading and transformation, so as to realize the vacuum micro-negative pressure adsorption for secondary drilling fluid recovery and recovery before drilling cuttings are discharged. Make the discharged cuttings drier.

4. It can be applied to land drilling rigs and offshore drilling rigs, especially ultra-deep drilling construction. Significantly improve the working efficiency of the vibrating screen of solids control equipment, recover drilling fluid, and reduce the amount of waste generated.

5. Compared with ordinary vibrating screens, there is no need to increase the floor area to meet the narrow space requirements of the offshore platform.

6. The solids control vibrating screen can be installed with a higher mesh screen without running the slurry, thereby improving the mud purification efficiency of the solids control equipment in the subsequent process.

7. By discharging drier drilling cuttings, the transportation and processing costs of drilling waste can be reduced.

8. The installation and operation are simple, and only one operator is required to operate the vacuum negative pressure drying screen of the entire drilling rig.