Yes, it is perfectly suited for velocity strings. Being non-metallic and corrosion-resistant, CFST tubing is a life of the well solution. When a gas well starts cutting water, it usually results in sweet corrosion, sour corrosion, or a combination. Normal Velocity strings are made of carbon steel Coiled Tubing and will last a few years at most. Our CFST will last for the remainder of the life of the well, without any future changes or corrosion surprises from well effluent. Our tubing can be connected to any standard Industry velocity string hanger-seal or whatever required.
Yes, it is ideally suited for this purpose. Injection water almost always contains oxygen from exposure to the surface or by dissolved oxygen in seawater. The fluid typically has elevated temperatures which increase the challenge for most OCTG strings. CFST is built to manage these challenging installations. No expansive scavenging, no cooling to match the operating envelope of the metal CRA. CFST is the fit for purpose pipe for disposal wells.
Note: Some clients are interested in downhole and surface injection line applications. They have to dispose of water at temperatures over 120C and have to replace flowlines and completion as frequently as ± every year. Currently, there is no competition, metal, or non-metallic, that can manage this environment. CFST is the fit for purpose pipe for disposal wells.
Yes, However, some precautions in the design are required. Non-metallic centralizers on the sucker rods; for both beam pumping and PCP installations. A limited deviation would be an advantage and result in prolonged life. Soft start or VSD in ESP is a must as it will reduce residual torque on the composite tubing when starting the downhole motor. Gas lift completion is no different from metal tubing.
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