Under Well Work Light Weight DTH Down The Hole Water Well Drilling Rig

Under Well Work Light Weight DTH Down the Hole Water Well Drilling Rig

Product Description:

A down-the-hole drill, usually called DTH by most professionals, is basically a mini jackhammer screwed on the bottom of a drill string. The fast hammer action breaks hard rock into small flakes and dust and is blown clear by the air exhaust from the DTH hammer. The DTH hammer is one of the fastest ways to drill hard rock. Now smaller portable drillcat drilling rigs with DTH hammers can drill as fast as much larger truck rigs with this newer technology.

Product Parameter:

Drilling operation technology

① Proper casing shall be put into the hole to avoid hole collapse.

② When the drilling tool is lowered into the hole, first use low-pressure slow rotation to sweep the hole to the bottom. When the resistance of the drill bit in the hole is small, it can be turned into normal drilling. If the resistance in the hole is large, it cannot be forced to open the high speed.

③ During normal drilling, the drilling parameters shall not be changed arbitrarily, and the drilling tools shall not be lifted to prevent the core from being blocked.

④ When the core is found to be blocked, the drilling tool can be lifted appropriately. If the treatment is ineffective, the drilling tool should be lifted immediately.

⑤ If the formation is loose, the particle size of sand and gravel is very small, and it is difficult to coring, the pump volume should be reduced.

⑥ If the drilling speed of sand and gravel suddenly accelerates, it may be to drill into the sand layer or the gravel layer with small particle size. It is not necessary to change the drilling parameters, but the pump volume should be reduced as much as possible.

⑦ In order to ensure that the core is drilled into thin sand and mud layers, it is best to drill more than 10 cm into the pebble layer after drilling. If the sand layer is thick, when one round of drilling cannot be penetrated, the pump should be stopped at the end of the round to dry drilling for more than 10 cm and then lift the drill to prevent the core from falling off.

⑧ Carefully operate during drilling, and often observe whether the water supply system is unblocked and whether the water pump operates normally. When there is no slurry return in the hole, slurry breaking shall be prevented. In case of sudden increase in pump pressure, immediately lift the drill for inspection to prevent burning.

⑨ when drilling and sampling in important hole sections, the drill rod should be slowly lifted and screwed down to prevent the core from falling off. When withdrawing the core, the drill bit should be removed and then the core should be gently poured out.

Jinzhou City Shitan Machinery Equipment CO. LTD. is a professional production and

processing company for core drilling rigs, crawler drilling rigs, various track chassis, various

types of mud pumps, various track transport vehicles, etc. It is one of the outstanding

manufacturers of similar products in North China. Strong technical force. The modern production

equipment and complete testing means are specialized in the development, manufacture and

marketing of drilling rigs.

To ensure the quality and stability of the machine, we use the most advanced production and testing

equipment, Made from high quality materials, with fashion and compact design, that keeps our drilling

rigs more efficiency and with low failure rate, more economic and durable, and with a high comprehensive

cost performance. Our water drilling rigs have received the real market validation as the majority of our

customer’s positive feedback.

The company's main products are rigs: XY-1, XY-1A, XY-1B, GK-180, GK-200, DPP-100 and other series

of drilling rigs: gearbox assemblies and gyro assemblies for various rigs, Winch assembly, reducer assembly,

pump assembly. Drilling tools: sedimentary pipe joints, casing joints, casing couplings, drill pipe joints, casing

core pipes, lifters, automatic drop hammers, earth borrowers, standard penetrations, forks, lock joints, alloy drill

bits Hundreds of drilling tools, such as steel sand drill bits, core pipe joints, drill pipe pliers, and casing pliers.

Jinzhou City Shitan Machinery Equipment CO. LTD. has a complete and scientific quality management

system. The integrity, strength and product quality of Jinzhou Stone Exploration Machinery Co., Ltd. have been

recognized by the industry. Welcome friends from all walks of life come to visit, guide and negotiate business!