1. No matter what the situation well drilling rig operated under insurance regulations, when someone is working on the mast section, under the mast other staff are not allowed to stay. 2. In the event vile weather (rain, snow, ice, or more than five years of night wind), not allowed to work on the mast, hydraulic filters. Meanwhile, Hebei DTH rig, nor permit the use of artificial lighting in the mast. 3. Do not use wire rope split shares. 4. landing drill, severely curb touch the rope. 5. In addition to elevating drilling rig, drill pipe endures, open wellhead prohibited. 6. In order to avoid drilling or pumping tube wells outside swinging from the well when pulled, the hook must be applied by 15 ~ 20mm diameter steel bars made of hook. 7. cleaned pumping tube, you should use a solid robust rope looped, set in the lower end of the pump cylinder, which spilled DTH rig, CSM. 8. Use the block when a promotion or landing casing and mechanical work at the salvage DTH rig prices, all workers should be separated from the drilling. 9. When the casing is pulled out with a crane, in order to prevent the sleeve off, the necessary fixed to each other in the way. 10. In the case of the next stop light (night time), well drilling rig work should be stopped. This time when the well is still drilling, the drill should be vigilant taken out from the well. According to the requirements of the holding point of groundwater aquifers and DTH drilling rig manufacturers, water well drilling rig exploration process has the following holding point: ① the sleeve Tho well drilling rig with large diameter. In order to facilitate the next casing string from the well outside diameter as large boxes. In order to enhance the strength of the casing wall thickness than the core drilling large. ② drill using large outlet structure, less cutting tools, large alloy sheet. In order to make the fluid flow, the majority of the drill bit for the ribs. ③ well drilling rig drill diameter, is to increase the torque decreases in the drill fluid flow resistance. ④ the use of "soft reduction, slow turn, a large amount pump" procedures in the drilling process. Gently press in soft formations, rock drillability small, light pressure can prevent broken drill 亊 therefore, to improve the stress state of the drill pipe to prevent the hole deviation. Slowly into the technical measures to adapt the hole diameter of the well, and the use of the torque, number of revolutions of well drilling rig is between 20? 120r / min, the establishment of a number of grades, large pump shake due to the hole wall and the drill pipe annular gap, to make the hole bottom cleaned only increase firefly row to increase the flow rate between the ring cheaper to prevent debris and broken recurring accidents. DTH drilling rig manufacturers _ Long industry machinery (certified) _ DTH rig provided by Shandong Machinery Co., Ltd. Dragon. Shandong Machinery Co., Ltd. Dragon (www.longyejixie.com) is Tai'an, engineering machinery parts leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Long industry leader in mechanical staff warmly welcome all inquiries negotiations to create a mechanical dragon industry a better future.