Downhole Tooling Professionalمنذ شهرين - Multimedia - Saïda - 22 الآراء
Downhole tooling refers to the tools used downhole during drilling operations. Downhole Tools include drill bits, air hammer systems, mud mixers, transmitter housings, adapters, and reamers. Downhole tooling is very important in a drilling operation as it can impact the overall productivity of the machine.
Since tooling is prone to wear and tear the cost of tooling should be taken into account while considering the overall cost of operation.
Downhole tooling is selected based on the production goals of a project, geology, obstacles and ground conditions. Right tooling selection is governed by selecting the right drill bits, selecting the right sonde housing, and the correct back reaming accessories. Good downhole tooling can also help manage drilling fluid better. Since downhole tooling is an attachment, there is a possibility of losing the tools downhole.
Tooling should be sturdy, well-fitting and optimized for the drilling operation. A tool that breaks downhole can end up increasing wait time and thereby cost of the operation.
The term ‘Mechanical Set Packer’ probably doesn’t mean much to those not in the concrete repair industry. But for those close to chemical grouting, this term certainly brings about thoughts of both form and function. Mechanical packers are also referred to as ports, or more simply, packers. But we would like to be very clear that a port is not a packer.
Mechanical packers were designed to withstand high pressure injection applications by inserting them into pre-drilled holes in a concrete substrate at various diameters ranging most commonly from 1/4" – 5/8”. Mechanical packers feature a rubber base with a threaded shaft. As the threaded shaft is tightened, the rubber base is compressed, creating a compression seal inside the drill hole. The ultimate pressure tolerance is dependent upon the amount the rubber is expanded and the total surface area of the rubber base that is in contact with the drill hole. That is, a smaller diameter packer will have considerably less surface area of rubber compressed against the concrete side walls, and thus holding a lower amount of pressure when connected to high pressure equipment. Most job site and substrate conditions will permit successful injection results with a diameter of 3/8” – 1/2". Of course, some contractors have personal preference of smaller or larger sizes.