Residential Sectional Garage Door
A typical version of an overhead garage door used in the past would have been built as a one-piece panel.The panel was mounted on each side with unequal parallelogram style hinge lifting mechanism. Newer versions of overhead garage doors are now generally built from several panels hinged together that roll along a system of tracks guided by rollers. The door is balanced by either a torsion spring system or a pair of extension springs.A remote controlled motorized mechanism for opening garage doors adds convenience, safety, and security
• Aluminum garage doors are low-cost, light, rust-proof, and feature low-maintenance. They are prone to denting because aluminum is not strong and they are energy-inefficient since aluminum is a highly conductivematerial.
• Fiberglass and vinyl garage doors are composite units, combining a steel core behind a fiberglass or vinyl skin. They have also polyurethane insulated base sections, or other type of foam insulation. These premium doors can match steel garage doors, and be a realistic imitation of wood (namely fiberglass units), but they may be more expensive than steel units.
• Steel doors have become common and are available in a variety of sizes and styles, provide strength and security, are cost-competitive, and may have optional insulating value. Extra strength is available with two or three layers of galvanized steel with a low gauge number (23-24 gauge steel panels).
• Wood garage doors offer aesthetic appeal, but they are high-maintenance and may be expensive. Low-priced wood garage doors may warp and break easily.
Residential Sectional Garage Door,Automatic Metal Sectional Garage Door,Standard Lift Garage Door Drum,Polyurethane Foam Garage Door Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hffreezerdoor.com
Composite drilling is a cutting edge drilling technology developed in the 1990s. The application can complete the construction of the upper straight section, the inclined section, the stable inclined section and the descending inclined section in one operation, which is beneficial to increase the drilling speed and reduce the number of times of drilling.
Drilling Four Company has made it the main research goal to improve the well trajectory control level, speed up the drilling speed and reduce the comprehensive cost of drilling. It is better to optimize the PDC bit type, reasonably match the drilling structure, and properly match the drilling parameters and hydraulic parameters.
This year, the company optimized its technology and the drilling speed-up effect was obvious. In the Yanlan block, two well groups drilled 12 wells with a footage of 37,900 meters. The average monthly drilling speed was 5,984 meters per piece, and the average mechanical drilling rate was 27 meters per hour, up 25.6% and 14.7% respectively. At the same time, the company's production and operation quality has been greatly improved. In the first 10 months of this year, the timeliness and complex aging time of drilling accidents were only 0.2% and 0.66%, a record low.
Bohai Drilling Company 4 promotes composite drilling technology
Bohai Drilling Drilling Company 4 focuses on analyzing the lithology characteristics of each block and vigorously promotes the application of PDC+ screw composite drilling technology. As of November 15, 80% of the company's wells have adopted this technology, and the single-well drilling technical indicators in multiple blocks have reached new highs, realizing the refined development of composite drilling technology.