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Mechanical Drilling Jar Type JZ Full-Hydraulic Drilling Jar Type QYⅢ Hydro-Mechanical Drilling Jar Type JYQ Full-Hydraulic Drilling Jar Type SS Drilling Accelerator Type ZJQ Two-action Drill Accelerator Type SZJQ Double Acting Full Hydraulic Drilling Jar Lock Type QYSSuper Fishing Jar Type CS V Jar intensifier Type ZJS Fishing Bumper Sub Type KXⅡ Lubricated Fishing Bumper Sub Type BXJ Surface Bumper Jar Type DJ Surface Bumper Jar Type DX Continuous Bumper Sub Type ZDXJQ Cable Jar Type DJQHydraulic Shock Sub Type YJ Two-Way Shock Sub Type SJ Mechanical And Hydraulic shock Absorber Type JZ-HYⅡ Anti Stick Slip Tool Type HNG Heavy Weight Shock Absorber Type JZ-J Cam Shock Absorber Type JZ-TS Top Drive Shock Absorber Type DQJ Drilling Shock Eliminator Type XZQ Hydroscillator Type ZDQ Hydraulic Thruster Type TLQ
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Roller Reamer Type HYQ Spiral Drilling Stabilizer Type LX Hydraulic Adjustable Stabilizer Type YTLX Lifting Sub Type TSDJ High-efficient Vibration Resistance Reduction Tailpipe Running tool Type ZTX Hole Straightener Reamer Type JYXZ Cyclone Desander Type XLQS Casing Wear Bushing Type FMT Borehole Dressing Tool Type JYXZ-M Hydraulic Hole Opener type KY Drilling Safety Joint Type AJ-SZ Reaming Stabilizer Type HYF Non-magnetic Drill Collars
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Safety Joint Type AJ Safety Joint Type HAJ&JAJ Releasing and Circulating Overshot Type LT-T Junk Sub Type LB Reverse Circulating Junk Basket Type LL Grapple Releasing Spear Type LM Fishing Magnet Type CL Fishing Multifunction Type DLQ Releasable Reversing Spear Type DLM-T Taper Tap Type GZ Die Collar Type MZ Muti-purpose Casing Spear Type AZ-LM Mechanical Internal Cutter Type NG Hydraulic Internal Cutter Type AND-S Mechanical External Cutter Type WD-J Hydraulic External Cutter Type WD-S Flat Bottom Junk Mill Type MXP Tapered Mill Type XZ Pilot Junk Mill Type GMX/YMX
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Casing Scraper Type GGQHⅣ High-efficient Casing Scraper Type GGQXⅡ Casing Scraper Type GGQZ Casing Brush Type GGQM Brush Scraper Model GX-M High-efficient Fishing Magnet Type GQC Fishing Magnet Type QC Pressure Testing Packer Type ST Double Acting Casing Swage Type SZZ Casing Compensator Type TBQ Lead Seal Casing Compensator type TBQ-Q Lead Seal Casing Compensator Type TBQ-QⅡ
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Float Sub Type FZF Throw-Type Back Pressure Valve Type HY Arrow Back-Pressure Valve Type JF Double Function Arrow-shaped Back Pressure Valve Type SJF Kelly Valve Type XS Ⅲ Full Open Safety Valve Type QKFⅡ IBOP Type NFQ Floating valve core Continuous Circulating Valve Type LXF Arrow Back-Pressure Valve Type FJ Simple Assembly Stand Type JZP Hydraulic Test Stand Models S120, 1150, and 2200 Full-hydraulic Mounting Rack Type YZJ200 Bucking Unit Type YXD20
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JarsEffective tools for relieving stuck drilling operations, to convert the potential energy inside the stretched drilling tools into kinetic energy.
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Drilling ToolsDrilling tools play a crucial role in the drilling process, with design and use directly affect the efficiency, safety and cost of drilling.
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Fishing ToolsFishing tools are one of the special tools most widely used, the most frequently used, with the most complete variety and specifications.
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Casing AccessoriesCasing accessories play an important role in oil drilling and cementing engineering. Their main purpose is to ensure smooth construction and improve engineering quality.
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About Us“GAOFENG” has strict systems of scientific research and quality assurance. It has a research & development technology center, a modern product line and maintenance service for oilfield drilling tools, and facilities together with advanced techniques of physical and chemical analysis as well as ultrasonic flaw detection for materials.
“GAOFENG” has strict systems of scientific research and quality assurance
“GAOFENG” has strict systems of scientific research and quality assurance
Hydraulic Hole Opener type KY
KY type hydraulic Hole Opener is a new type of hydraulic variable diameter hole opener for drilling or workover operations. It is operated by controlling the mud pump switch at the wellhead to adjust the hydraulic pressure drop in the drill string and realize the opening and withdrawal of the blade. In other words, when the pump is opened, the pump pressure is used to push the piston to overcome the spring thrust upward and drive the blade to slide upward and open in the chute of the housing. When the pump is stopped or the drill tool is lifted up, under the action of spring thrust and wall friction, the blade of the tool moves down in the chute of the housing and withdraw to achieve the purpose of diameter change and reaming, so as to prevent the resistance or stuck when pulling out or tripping in. It has the advantages of reasonable structure, good wear resistance, adjustable reaming size, and can be used for hole enlargement, especially while drilling, realizing the process of "drilling and hole opening in one trip". SpecificationsModelBody ODmm/inFish Neck ODat both endsmm/inConnection（API）Hole Opening Rangemm/inOverall LengthmmRecommendedOperation PressureMPa/ PsiKY234-165234/9.25165.1/6.5NC50260-299(10.25-11.75)39704.55-5.6（650-800）KY295-210295/11.625210/8.256 5/8REG330-381(13-15)5290
Category：
Detailed introduction
KY type hydraulic Hole Opener is a new type of hydraulic variable diameter hole opener for drilling or workover operations. It is operated by controlling the mud pump switch at the wellhead to adjust the hydraulic pressure drop in the drill string and realize the opening and withdrawal of the blade. In other words, when the pump is opened, the pump pressure is used to push the piston to overcome the spring thrust upward and drive the blade to slide upward and open in the chute of the housing. When the pump is stopped or the drill tool is lifted up, under the action of spring thrust and wall friction, the blade of the tool moves down in the chute of the housing and withdraw to achieve the purpose of diameter change and reaming, so as to prevent the resistance or stuck when pulling out or tripping in. It has the advantages of reasonable structure, good wear resistance, adjustable reaming size, and can be used for hole enlargement, especially while drilling, realizing the process of "drilling and hole opening in one trip".
Specifications
Model | Body OD mm/in | Fish Neck ODat both ends mm/in | Connection （API） | Hole Opening Range mm/in | Overall Length mm | Recommended Operation Pressure MPa/ Psi |
KY234-165 | 234/9.25 | 165.1/6.5 | NC50 | 260-299(10.25-11.75) | 3970 | 4.55-5.6 （650-800） |
KY295-210 | 295/11.625 | 210/8.25 | 6 5/8REG | 330-381(13-15) | 5290 |
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Gaofeng petroleum machinery and equipment, oil and gas drilling and production downhole tools
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