Dry product additive unit

Patent metadata

Field	Value
Publication number	US-11713633-B2
Application number	US-202117387289-A
Country	US
Kind code	B2
Filing date	Jul 28, 2021
Priority date	Jul 28, 2021
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

A dry product additive system includes a skid, a hopper, a pickup funnel, a feeder system, a supply pump, and an eductor assembly. The feeder system may be configured to transport product from the hopper to the pickup funnel. The eductor assembly including a suction inlet, a motive inlet, and an outlet. The suction inlet may be coupled to the pickup funnel by a suction hose. The motive inlet may be coupled to the supply pump by a motive fluid hose.

First claim

The invention claimed is:

1. A dry product additive system comprising:
a skid;
a hopper, the hopper adapted to hold product;
a pickup funnel, the pickup funnel including a vent, the vent positioned to allow air to enter the pickup funnel as product is removed from pickup funnel;
a feeder system, the feeder system configured to transport product from the hopper to the pickup funnel;
a supply pump; and
an eductor assembly, the eductor assembly including a suction inlet, a motive inlet, and an outlet, the suction inlet coupled to the pickup funnel by a suction hose, the motive inlet coupled to the supply pump by a motive fluid hose.

2. The dry product additive system of claim 1 , further comprising a frame mechanically coupled to the skid.

3. The dry product additive system of claim 1 , wherein the hopper further comprises an upper hatch.

4. The dry product additive system of claim 1 , further comprising a hopper fill tube, the hopper fill tube coupled to the hopper.

5. The dry product additive system of claim 1 , wherein the feeder system comprises a trough, the trough positioned below the hopper such that product positioned within the hopper is gravity fed into the trough, the trough coupled to the pickup funnel.

6. The dry product additive system of claim 5 , wherein the feeder system comprises a feed auger, the feed auger positioned within the trough.

7. The dry product additive system of claim 6 , wherein the feed auger is driven by a feeder motor.

8. The dry product additive system of claim 1 , further comprising a load cell positioned between the hopper and the skid.

9. The dry product additive system of claim 1 , wherein the supply pump is a centrifugal pump.

10. The dry product additive system of claim 1 , wherein the supply pump is driven by a pump motor.

11. The dry product additive system of claim 1 , further comprising a water supply, the water supply coupled to a pump inlet of the supply pump.

12. The dry product additive system of claim 11 , wherein the water supply is a tank.

13. The dry product additive system of claim 1 , further comprising a liquid add pump assembly, the liquid add pump assembly including a liquid add pump and a liquid add pump motor.

14. The dry product additive system of claim 13 , wherein the liquid add pump assembly further comprises a flow meter.

15. The dry product additive system of claim 1 , further comprising a control system, the control system configured to control the feeder system and the supply pump.

16. The dry product additive system of claim 15 , further comprising a human machine interface (HMI) configured to allow a user to control the dry product additive system locally.

17. The dry product additive system of claim 15 , wherein the control system further comprises a transceiver to allow wireless or wired remote control of the dry product additive system.

18. The dry product additive system of claim 17 , wherein the transceiver is a Wi-Fi, cellular, GSM, LTE, CDMA, or satellite interlink.

19. The dry product additive system of claim 1 , further comprising a vacuum breaker valve positioned on the eductor assembly fluidly coupled to the suction inlet.

Assignees

• Stewart & Stevenson Llc

Inventors

• Smith Jeff
• Sharp Brian
• Payne Mark

Classifications

• E21B21/062 Primary

  by mixing components · CPC title

• E21B21/01

  Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes · CPC title

• E21B21/08

  Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure (valve arrangements therefor E21B21/10) · CPC title

• E21B21/06 Primary

  Arrangements for treating drilling fluids outside the borehole · CPC title