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31results about How to "High compression" patented technology

Ball sealer for hydrocarbon resource collection as well as production method therefor and downhole treatment method using same

A ball sealer for hydrocarbon resource recovery, comprising: a generally spherical entire structure including at least two layers of a spherical core and a surface resin layer covering the spherical core, of which at least the surface resin layer comprises a polyglycolic acid resin; and having a diameter of at least about 25 mm (1 inch). The ball sealer is produced through a process comprising the steps of: disposing a spherical core by a support pin at a substantially central position within a mold cavity, injecting a surface resin comprising a polyglycolic acid resin into the cavity surrounding the spherical core, causing the support pin to retreat up to a wall surface of mold cavity in synchronism with a completion of the injection of the surface resin, and then hardening the surface resin. As a result, it is possible to produce a large-diameter ball sealer suitable for use in the hydraulic fracturing process (hydraulic fracturing) widely used for recovery of hydrocarbon resources by using a polyglycolic acid resin which is a biodegradable resin having good mechanical strengths and a good size designability at least as a surface-forming resin, through relatively simple steps and with good dimensional accuracy.
Owner:KUREHA KAGAKU KOGYO KK

Ball sealer for hydrocarbon resource collection as well as production method therefor and downhole treatment method using same

A ball sealer for hydrocarbon resource recovery, comprising: a generally spherical entire structure including at least two layers of a spherical core and a surface resin layer covering the spherical core, of which at least the surface resin layer comprises a polyglycolic acid resin; and having a diameter of at least about 25 mm (1 inch). The ball sealer is produced through a process comprising the steps of: disposing a spherical core by a support pin at a substantially central position within a mold cavity, injecting a surface resin comprising a polyglycolic acid resin into the cavity surrounding the spherical core, causing the support pin to retreat up to a wall surface of mold cavity in synchronism with a completion of the injection of the surface resin, and then hardening the surface resin. As a result, it is possible to produce a large-diameter ball sealer suitable for use in the hydraulic fracturing process (hydraulic fracturing) widely used for recovery of hydrocarbon resources by using a polyglycolic acid resin which is a biodegradable resin having good mechanical strengths and a good size designability at least as a surface-forming resin, through relatively simple steps and with good dimensional accuracy.
Owner:KUREHA KAGAKU KOGYO KK

Non-classical light field generator with phase self-compensation

The invention belongs to the technical field of non-classical optics, and discloses a non-classical light field generator with phase self-compensation. The non-classical light field generator comprises a laser, a compressed light field generator, a first phase shifter, a beam splitter, a central controller, a balanced zero-beat detector and a spectrum analyzer; the compressed light field generatoris used for generating a compressed light field detected by the balanced zero-beat detector; an output signal of the balanced zero-beat detector is connected with the spectrum analyzer; an output endof the spectrum analyzer is connected with the central controller; an output end of the central controller is connected with an input end of a temperature controller, is used for changing the crystaltemperature through the temperature controller, finding the double resonance temperature of an optical parametric cavity amplifier according to the output signals of the single detectors at differentcrystal temperatures, and is further used for finding the phase self-compensation temperature of the optical parameter amplifier according to output signals of a single detector at different crystaltemperatures; and is further used for finding the phase self-compensation temperature of an optical parameter amplifier according to the compression degree of a first compressed light field at different crystal temperatures. The non-classical light field generator with the phase self-compensation provided by the invention improves the non-classical characteristics of the light field and can be applied to the field of non-classical light fields.
Owner:SHANXI UNIV
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