Advanced coiled tubing tools are necessary for implementing coiled tubing technologies. The CoilTOOLS portfolio of coiled tubing intervention tools and solutions for standard bottomhole assemblies includes motor heads, connector checks, valve-disconnect assemblies, knuckle joints, fixed and hydraulic centralizers, fixed and rotary wash tools, nipple locators, gauge carriers, and a complete suite of downhole valves.
CoilFLATE Coiled Tubing Through-Tubing Inflatable Packer
Zonal isolation for chemically harsh, and high-temperature environments
Designed for extreme conditions, the CoilFLATE coiled tubing through-tubing inflatable packer extends critical zonal isolation capability to previously inaccessible, chemically harsh, and high-temperature environments. The CoilFLATE packer eliminates the need for a workover rig because the packer is run on either coiled tubing or jointed pipe into vertical, deviated or horizontal tools. Remedial operations can be performed without killing the well.
Permanently abandon zones or temporarily isolate wellbore areas
By deploying the CoilFLATE packer, you can permanently abandon zones or temporarily isolate tool areas for tubing integrity testing, wellhead testing, and general pressure testing in openhole and cased hole wells. The packer’s resistance against aggressive chemicals lets you selectively place treatment fluids for acid stimulation, water control, and chemical treatment.
Robust design keeps packer anchored in place in severe conditions
The CoilFLATE packer design keeps the packer anchored in place, providing a reliable high-pressure seal at large inflation ratios (2:1 at 5,000 psi, 3:1 at 2,000 psi). It also allows extended assembly exposure at temperatures up to 375 degF under harsh conditions and in almost any chemical environment.
HPHT system ensures absolute depth control
The CoilFLATE packer high-pressure, high-temperature (HPHT) system ensures absolute depth control via casing collar log correlation for optimum packer positioning.
Vantage Modular CT Logging Head System
Save rig-up and operational time
Available in both 1 11/16 and 2 1/2 in, the Vantage modular CT logging head system is designed to standardize e-line coiled tubing connectivity. Its increased reliability, modular interchangeability, and uniquely designed bayonet CT connector reduce rig-up time. And its 3 bbl/min flow-through capability speeds operational time.
Connect via plug-and-play components
The Vantage system’s modular plug-and-play connections physically and electrically couple the components. These connections enable rapid interchangeability and reduce nonproductive time. Together, the CT flush OD bayonet connector and cable termination tool enables pretermination of the electrical connection before the CT is stabbed through the injector head chains. The Vantage system can perform multiple runs in hole without redressing.
Extend CT head life
High-strength, corrosion-resistant alloy materials protect the Vantage system from excess abrasion and wear, making it ideal for offshore, land, desert, and arctic environments—and for oil, gas, and injector wells. It is rated for working pressure of 13,500 psi, maximum temperature of 375 degF, and maximum tensile strength of 40,000 lbm.
Retrieval and Fishing Tools
Remove stuck items with minimal NPT
Retrieval and fishing tools are used to connect with an item, or fish, that was either lost or intentionally placed in the well. Two main types of fishing necks are used: the internal GS profile and the external JDC profile.
Fishing tools are designed to engage with items that were not originally designed to be engaged (i.e., items without an engagement profile). In many cases, the items are lost or broken off pieces of tool strings or coiled tubing. These items have to be engaged either internally or externally. A bar or rod sticking up would call for an overshot tool; a pipe or other large bore could be caught with a spear. Both the overshot and the spear cut into the metal of the fish to engage with it.
All retrieval tools, and many spears and overshots, are releasable, to provide the option to come off the fish in case the fish cannot be moved. Mechanical release and hydraulic release functions are common. Most operators prefer the hydraulic release choice. However, in gas wells, which do not support a fluid column, or in case the introduction of water to the formation has to be minimized, the mechanic release tool has the advantage. Nonreleasable tools must be used with a disconnect above, and the risk of having to leave them in the well has to be accepted.
Discovery MLT Multilateral Reentry System
Selective entry on coiled tubing for multilateral wells
Discovery MLT multilateral reentry system is cost-effective and operationally simple for maximizing performance of multilateral wells. The system sends a pressure signal to the surface confirming you’ve accessed the correct lateral.
Adjusting the suborientation, or bend, from surface and the real-time feedback to surface of window identification save a substantial amount of time. This significantly increases the chance of successful reentry on the first attempt. Only one run to the bottom of the lateral is required for confirmation.
Real-time information downhole
Using Discovery MLT system, you can display several essential parameters, such as the tool orientation relative to the lateral window. The Discovery MLT system also monitors previous indexes and guides you through indexing cycles for accurate, real-time information downhole.
After the window is profiled, the Discovery MLT system memorizes the window orientation and monitors the BHA orientation, facilitating the location of other windows.
You can determine job feasibility with our CoilCADE coiled tubing design and evaluation software and monitor and record real-time data with CoilCAT coiled tubing computer-aided treatment.
Coil Tubing Services uses 2-7/8-in CT to remove surface and bridge plugs, relieve sustained casing pressure, and place new cement plugs to abandon a well in 72 hours
CHALLENGE
Perform reabandonment of a Gulf of Mexico well with sustained casing pressure and well control challenges.
SOLUTION
Deploy CoilTOOLS CT intervention tools and solutions using larger-OD CT with a robust, stabilized milling system to efficiently remove surface plugs and prepare for reabandonment.
RESULTS
Successfully removed the cement plug and cored through the bridge plug in less than 72 hours compared with several additional days using a rig.
Operator fishes trapped two-way check valve 3 days faster than planned, avoiding a major workover。
CHALLENGE
Recover a stuck two-way check valve after a failed burnover attempt.
SOLUTION
Develop an engineered approach using CoilTOOLS CT intervention tools and solutions to maximize the efficiency of the fishing operations while minimizing the cost to the customer.
RESULTS
■ Performed the entire fishing operation in 46 hours.
■ Avoided costly, time-consuming cementing and milling operation.
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