Patent ID: 11911790
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C  E | IPC B  C

Claim 0:
1. A tool system comprising:
a central tubular defining a central flow passage and spray nozzles along an outer circumference of the central tubular that fluidically connect the flow passage to an outside environment, the tubular configured to receive fluid from a corrosion inhibitor pump and direct the fluid along an inner circumference of a tubular in which the tool is inserted;
a first brush pig supporting a first end of the central tubular, the first brush pig configured to support the first end of the central tubular;
a second brush pig supporting a second end of the central tubular, the second brush pig configured to support the second end of the central tubular;
an inflatable balloon at the second end of the central tubular, the inflatable balloon encircled by the second brush pig, the inflatable balloon configured to cause a first pressure drop in the fluid across the inflatable balloon when in an inflated state, and cause a second pressure drop in the fluid, less than the first pressure drop, across the inflatable balloon when in a deflated state; and
a flow control system at the first end of the central tubular, the flow control system configured to regulate fluid exchange with the central tubular and fluid exchange with the inflatable balloon, the flow control system configured to receive a chemical injection line connected to the corrosion inhibitor pump.