System and method for responsively injecting chemistries directly into a downhole slurry
AssigneeSentinel Solutions LLC
InventorsCharles Vincent Skillman, Jr., Frank John Christy
Life of this patent
Estimating the term…
Abstract
A system and method that provides an automated process for the trenchless construction marketspace. The system including a containerized unit consisting of a plurality of holding tanks, fluid agitators, hootenanny mixers, progressive cavity pumps and pneumatic valving. The operator of the system is capable of mixing costly polymer chemistries simultaneously while dosing the custom mixes into the active circulating system at a fixed rate.
Claims20
A system for providing chemistries to a downhole bound mud slurry in a drilling or mining operation comprising:
- a mudline pipe conveying the mud slurry from an upstream source;
- a freshwater holding tank;
- a plurality of dosing tanks communicatively coupled to the freshwater holding tank, and communicatively coupled to the mudline pipe;
- a sweep tank communicatively coupled to the freshwater holding tank and communicatively coupled to the mudline pipe;
- a plurality of eductors, each of the plurality of dosing tanks and the sweep tank being communicatively coupled to the freshwater holding tank through a respective one of the plurality of eductors, each of the plurality of eductors being configured to receive a chemical, wherein the chemical and the freshwater are mixed in the eductor to create a solution;
- a controller, the controller controlling a flow of the solution from the plurality of dosing tanks and the sweep tank into the mudline;
- and
- a container in which all of the elements of the system are disposed.
A system for providing chemistries to a downhole bound slurry in a drilling or mining operation comprising:
- a mudline pipe;
- an upstream mudline port communicatively coupled to the mudline pipe, the upstream mudline port being configured to receive a mud slurry and delivering it to the mudline pipe;
- a downstream mudline port communicatively coupled to the mudline pipe, the downstream mudline port being configured to receive the mud slurry from the mudline pipe and delivering it downstream;
- a freshwater holding tank;
- a freshwater port communicatively coupled to the freshwater holding tank, the freshwater port being configured to receive freshwater from a local source and delivering it to the freshwater holding tank;
- a plurality of dosing tanks communicatively coupled to the freshwater holding tank, and communicatively coupled to the mudline pipe;
- a sweep tank communicatively coupled to the freshwater holding tank and communicatively coupled to the mudline pipe, wherein the volume of the sweep tank is greater than a volume of any of the plurality of dosing tanks;
- a plurality of eductors, each of the plurality of dosing tanks and the sweep tank being communicatively coupled to the freshwater holding tank through a respective one of the plurality of eductors, each of the plurality of eductors being configured to receive a chemical, wherein the chemical and the freshwater are mixed in the eductor to create a solution;
- a controller, the controller controlling a flow of the solution from the plurality of dosing tanks and the sweep tank into the mudline pipe;
- and
- a container in which all of the elements of the system are disposed.
A process for providing chemistries for downhole conditions in a drilling or mining operation comprising:
- supplying freshwater to a sweep tank and a plurality of dosing tanks, the sweep tank and the plurality of dosing tanks being disposed in a single mobile container;
- mixing, in a first dosing tank, at least one chemical and the freshwater to create a first solution;
- mixing, in a second dosing tank, at least one second chemical and the freshwater to create a second solution;
- receiving a command to inject at least one of the two solutions;
- and
- injecting the least one solution in a mudline slurry being conveyed downhole.
Dependencies are inferred from the claim text.