In the oil and gas industries, coiled tubing refers to a very long metal pipe, normally 1 to 3.25 in (25 to 83 mm) in diameter which is supplied spooled on a large reel. It is used for interventions in oil and gas wells and sometimes as production tubing in depleted gas wells. Coiled tubing is often used to carry out operations similar to wire-lin. The main benefits over wireline are the ability to pump chemicals through the coil and the ability to push it into the hole rather than relying on gravity. Pumping can be fairly self-contained, almost a closed system, since the tube is continuous instead of jointed pipe. For offshore operations, the 'footprint' for a coiled tubing operation is generally larger than a wireline spread, which can limit the number of installations where coiled tubing can be performed and make the operation more costly. A coiled tubing operation is normally performed through the drilling derrick on the oil platform, which is used to support the surface equipment, although on platforms with no drilling facilities a self-supporting tower can be used instead. For coiled tubing operations on sub-sea wells a mobile offshore drilling unit (MODU) e.g. semi-submersible, drillship etc. has to be utilized to support all the surface equipment and personnel, whereas wireline can be carried out from a smaller and cheaper intervention vessel. Onshore, they can be run using smaller service rigs, and for light operations a mobile self-contained coiled tubing rig can be used.
The tool string at the bottom of the coil is often called the bottom hole assembly (BHA). It can range from something as simple as a jetting nozzle, for jobs involving pumping chemicals or cement through the coil, to a larger string of logging tools, depending on the operations.
Coiled tubing has also been used as a cheaper version of work-over operations. It is used to perform open hole drilling and milling operations. Common coiled tubing steels have yield strengths ranging from 55,000 PSI to 120,000 PSI so it can also be used to fracture the reservoir, a process where fluid is pressurized to thousands of psi on a specific point in a well to break the rock apart and allow the flow of product. Coil tubing can perform almost any operation for oil well operations if used correctly.
Midland Oil Tools emerged as a holding company in the oilfield market in 2010. Today Midland Oil Tools provides specialized services in three countries.
Our production process are done under regurous supervision according to ISO 9001 and a world class quality control.
Our manufacturing facility is the same that manufactures to the larges oilfield service companies, we can offer similar products ant a fraction of the cost. We offer very good quality and low cost.
We are capable of manufacturing as many tools as required by our clients.
Depending on destination we pack & ship the product in coordination with our clients.
All Quality control is done according to international manufacturing standards.
We have a team of 3 for R&D.
Trade capacity will depend on delivery location and the size of the order.
Net 30 days.
Depending on the service or product required time varies from 73 hrs to 90 days.
For our services we do not have a refund policy, for products it depends on the product required.