... Abstract Use of metal-on-metal lubricants is a common way to enhance coiled tubing (CT) accessibility in extended reach (ER) wells. However, there is less data available on the effect of lubricants in open-hole applications. Historically, there is only a laboratory study ( Sharma and Silviu...

... stimulation or any mechanical intervention. This paper discusses case histories for two extended reach wells where a 2-inch CT achieved 100% accessibility with the use of special CT lubricant. There are many methods to enhance CT reach, but the simplest and most cost-effective method is the use of metal...

... that several coefficients of friction could be considered along the CT length. However, the unified coefficient of friction theory is the common practice within the CT industry. Two types of friction instruments have been used for measuring the friction-reduction performance of lubricants for CT operations...

..." values of friction, achieve a better understanding of the influence of solids in the completion to the coefficient of friction and obtain a more efficient use of the metal-metal lubricant utilized during the milling operations. real time system drilling operation Coiled tubing operations...

... and cleanout procedure. Coil tubing application requires the use of robust fluid products due to the demanding environment. The novel additive was used to increase the lubricity improving friction on metal to metal contact where excess torque and drag led to the use of multiple tool runs and several short...

... to maximize the reservoir contact and production rates. However, the frictional forces between the coiled tubing (CT) and casing in those long lateral wells also increase, limiting the ability of conventional CT sizes to reach the end prior to lock-up occurring. Technologies such as lubricants, vibratory...

... There are a few different methods which can improve CT extended reach capability: modifying CT design (tapered CT), changing circulation fluid density, using a downhole tractor or water hammer tool, and, lastly, circulating the metal-to-metal lubricants. These options will be explored briefly, as listed below...

... of a unique, engineered coiled tubing design, considerations and operation details which helped set and push the limits of extended reach CT interventions, utilizing available CT equipment and technology in the Vaca Muerta shale. Completion Installation and Operations drilling operation lubricant...

.... 2014 ; Livescu and Craig 2015 ). Previously, these effects have not been considered in the CT numerical models, leading to significant CoF differences among available commercial simulators. For instance, the default CoFs in the current pre-job simulations for cased holes, when no lubricant or friction...

... in these applications. Lubricants played a key role in enhancing lateral reach for these cases. As operators drill even longer horizontal sections (7,000 to 10,000 ft) in an effort to increase recovery from their assets, enabling efficient annular fracturing at these depths has seen increased relevance. Standard...

... is directly proportional to its effect on the coefficient of dynamic friction μ. Lubricants have properties of low shear strengths and high compressive strengths. As such, lubricants become the weakest material when used as an interface between CT and well casing resulting in lower friction coefficients...

... operational range significantly, they also increase circulating pressures and operational complexity. To reach a 10,000-ft lateral, the use of metal-on-metal lubricants will be required to work in conjunction with the other systems. Obviously, the use of lubricants is not new. Typical real life results...

... improvements observed from milling operations using both fluid hammer tools and/or lubricants. Data from shale formations across the U.S. (Eagle Ford, Bakken, Haynesville, Barnett and the Marcellus) is included. Analysis from the use of three types of hammer tools and/or lubricants will compare results...

... Abstract As the industry increasingly develops extended-reach, high-angle and deepwater wells, one of the considerations is fluid lubricity when designing a completion or workover fluid. Fluid lubricity plays an important role in choosing the optimum fluid for the operation. This paper...

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