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Artificial Lift Techbook 2018

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EPmag.com | July 2018 | 27 ARTIFICIAL LIFT: TECHNOLOGY leak through it, so if you wanted to do some chemical injections you can still do that through the tool. It is the only tool like this on the market currently with this level of operability." Halliburton has successfully deployed SandRight in many of the U.S. unconventional basins. The tool is compact and is easily deployed, according to the company. Its unique sand fallback prevention capa- bilities address all known issues with most fallback preventers—such as erosion/corrosion, paraffin buildup and jamming issues—while retaining the abil- ity to perform through-tubing chemical treatments. With the Summit offering, Halliburton is provid- ing erosion protection through a series of coatings that harden stages of the pump to withstand sand erosion. As sand flows through these pumps, it typ- ically erodes all of the mechanical parts in its path. "We have several coating options available. The DuraHard 7 is a high phosphorous nickel coating that we use to harden the surface and protects against abrasion and corrosion, especially when there is sig- nificant presence of heat," explained Romero. "We also have the DuraHard 15, which is a molecular bond coating and that is for even higher corrosive and abrasive wells in still higher temperatures." DuraHard 7 is suitable for application in corrosive environments, recently fracked wells with uniform sand particles, cased-hole operations where sand con- trol isn't 100% effective and is resistant up to 260 C (500 F). DuraHard 15 can be applied in wells with very high angular abrasive sand and formation fines, wells with quartz sand and in open-hole wellbores or wellbores will no sand control. When it comes to high temperatures, the problem is mostly when operators are dealing with gas through the ESP system. To assist in combating rising tempera- tures, a reliable motor is key, according to Halliburton. "The Corsair motor, which is also a Summit product, can run cooler than any other motor in the market," said Romero. "The reason why is the design we have in the rotor bearing. It is not inserted and it is thicker. It allows for better heat transfer and less vibration. It has a larger big foot bearing that increases the heat transfer and reduces the internal motor temperature. It also has high-temperature (varnish) and double wrapped insulated windings offering solid protection from temperature rise. Less temperature rise means longer runs and more reliabil- ity through the wide production range that you see in the unconventional plays. These are just some of the advancements we've seen in the shales." Halliburton also has just recently deployed its new DEVIATOR Flange that will allow an ESP system to go deeper and closer to the production zones. One weak point in the ESP is the connections. Halliburton developed reinforcement for those connections. The flange is made of a larger stainless steel cross-section area, has an armored cage-like configuration and a double O-ring connection. The benefits are increased stiffness, preventing permanent deformation, and redundant sealing that prevents leaks. The contrac- tor currently has units working in the Permian. In the future, Halliburton sees an increased use of permanent magnet motors (PMM), which will increase efficiencies while reducing the overall motor length. Cur- rently, the offset is the cost and drive software compatibility, but the contractor believes in the potential for PMM uses in many markets. Nearer term, the Hallibur- ton acquisition of Summit is set to spawn a new generation of ESP offerings. "What you are going to see is a more robust product and a more efficient product— the best of the two," Romero said. "In the meantime, we are investing in high temperature. We're going to bring a new product to the SAGD market this year. It is already under Corsair Motors offers a new standard in electric submersible motors, providing the highest levels of performance in the harshest downhole environments. (Image courtesy of SummitESP) The DEVIATOR Flange design allows ESP systems to go deeper in the well and closer to the production zones, supporting stable well performance and lower operating cost. Utilizing high- strength materials enables installation into wells with dogleg severity up to 18°/100 ft. (Image courtesy of Halliburton)

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