Methods of pneumatically conveying solid particulates
A method for transferring barite for use in wellbore fluids may include providing a ground weight material comprising barite and quartz having a d 50 between about 4 and 8 and a d 90 between about 15-25 microns to a pneumatic transfer vessel, supplying an air flow to the ground weight material in the pneumatic transfer vessel, and pneumatically transferring the ground weight material from the pneumatic transfer vessel to a storage vessel.
1. A method for transferring barite for use in wellbore fluids comprising:
providing a ground weight material comprising barite and quartz having a d 50 between about 4 and 8 and a d 90 between about 15-25 microns to a pneumatic transfer vessel;
supplying an air flow to the ground weight material in the pneumatic transfer vessel; and
pneumatically transferring the ground weight material from the pneumatic transfer vessel to a storage vessel.
2. The method of claim 1 , wherein the finely ground weight material has a specific gravity of less than or equal to about 4.2.
3. The method of claim 1 , wherein the ground weight material has a weight percent of quartz of between 4 and 12 percent.
4. The method of claim 1 , wherein the ground weight material has a weight percent of quartz ranging between about 5 and 7 percent.
5. The method of claim 1 , wherein the ground weight material has a weight percent of quartz of at least 10 percent.
6. The method of claim 1 , wherein the quartz has a larger average particle size than the barite.
7. The method of claim 1 , wherein supplying the air flow comprises supplying between 10-80 psi of air to the contents of the pneumatic transfer vessel.
8. The method of claim 1 , wherein the efficiency of the transferring is at least about 92%.
9. The method of claim 7 , wherein the efficiency of the transferring is at least about 95%.
10. The method of claim 1 , wherein the storage vessel is a second pneumatic transfer vessel.
11. The method of claim 1 , wherein the pneumatically transferring transfers the ground weight material from a transportation vessel to the storage vessel.
12. The method of claim 11 , further comprising:
pneumatically transferring the ground weight material from the storage vessel to a transportation vessel.
13. The method of claim 1 , further comprising:
grinding an ore material comprising barite and quartz to form the ground weight material.
14. A method comprising:
pneumatically transferring a weight material from a pneumatic transfer vessel to a storage vessel, wherein the weight material has a d 50 between about 4 and 8 and a d 90 between about 15-25 microns.
15. The method of claim 14 , wherein the pneumatic transferring of the weight material has an efficiency oat at least about 92%.
16. The method of claim 14 , wherein the weight material is selected from the group consisting of barium sulphate (barite), calcium carbonate, dolomite, ilmenite, hematite, olivine, siderite, and strontium sulphate.
17. The method of claim 14 , wherein the weight material has a weight percent of quartz ranging between 4 and 12 percent.
18. A method comprising:
pneumatically transferring a weight material from a pneumatic transfer vessel to a storage vessel, wherein the weight material has a weight percent of quartz ranging between 4 and 12 percent.
19. The method of claim 18 , wherein the weight material is selected from the group consisting of barium sulphate (barite), calcium carbonate, dolomite, ilmenite, hematite, olivine, siderite, and strontium sulphate.
20. The method of claim 18 , wherein the weight material has a d 50 between about 4 and 8 and a d 90 between about 15-25 microns.