2017
DOI: 10.1177/1687814017705063
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Development on coiled tubing fracturing sleeve for shale gas horizontal well

Abstract: According to the conventional well cementing method, the cementing sliding sleeve, as a key part of the casing, needs to be opened by switch tool step by step to conduct fracture with coiled tubing. However, it usually needs switch tool to locate accurately, which is indeed a challenge. This article proposes a set of fracturing sliding sleeve with six-openingdegree and hydraulic switch tool working with coiled tubing-enabled fracturing sliding sleeve. The three-dimensional models, finite element analysis, and … Show more

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(1 citation statement)
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“…Coiled tubing (CT) is a thin-walled steel pipe with a diameter of 19.05 -114.3 mm, a thickness of 1.7018 -6.096 mm and a length of thousands of meters [1][2]. As there is no need of pipe connection, CT operation shortens working period greatly, reduces field working strength and production cost [3][4]. During one trip, the CT undergoes 3 bending and 3 straightening, and the plastic strain reaches about 2% -3% [5].…”
Section: Introductionmentioning
confidence: 99%
“…Coiled tubing (CT) is a thin-walled steel pipe with a diameter of 19.05 -114.3 mm, a thickness of 1.7018 -6.096 mm and a length of thousands of meters [1][2]. As there is no need of pipe connection, CT operation shortens working period greatly, reduces field working strength and production cost [3][4]. During one trip, the CT undergoes 3 bending and 3 straightening, and the plastic strain reaches about 2% -3% [5].…”
Section: Introductionmentioning
confidence: 99%