Company Details

  • Hejian Deris Petroleum Drilling Equipment Co.,Ltd.

  •  [Hebei,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Retailer , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:91% - 100%
  • Certs:ISO9001, API, CE
  • Description:HDD Hole Opener,Well Drilling HDD Hole Opener,Rock Well HDD Hole Opener,HDD Hole Opener For Horizontal Drilling
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HDD Hole Opener

Product categories of HDD Hole Opener, we are specialized manufacturers from China, HDD Hole Opener, Well Drilling HDD Hole Opener suppliers/factory, wholesale high-quality products of Rock Well HDD Hole Opener R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
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Durable Hard Rock Drilling HDD Hole Opener 15inch

Model No. : Hole Opener

Hejian Deris Petroleum Drilling Equipment Co., Ltd supplies a wide assortment of hole openers for many drilling applications. The main body is constructed from 4130-4145 high alloy steel for incredible strength and toughness. The hole openers can...

China HDD Hole Opener of with CE
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IADC 637 hdd rock reamer bit hole drilling

Model No. : IADC 637

Roller Cone Hdd Hole Opener are used to increase size of well bore and there are two broad categories of Roller Cones Hole Opener fixed diameter hole openers, and under-reamers. Fixed diameter hole openers are usually made up of three [cutters"...

China Manufacturer of Well Drilling HDD Hole Opener
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China HDD Hole Opener Suppliers

HDD Hole Opener

First : PILOT HOLE DRILLING

The pilot hole is drilled from the entry point to the exit point following a previously designed profile and alignment. The Drilling Tools and rig equipment selected for each job is largely determined based on the results of the geotechnical investigation and the size of the crossing (length and diameter). During the pilot hole drilling, a directional guidance system is used to navigate the pilot hole along its pre-designed profile. Marine Support including vessel and dive crew management is essential on Shore Crossing Projects.

high-quality-8-5-gethermal-bit-tricone

Second : HOLE ENLARGEMENT

In small diameter crossings the pipeline may be directly installed in the pilot hole. However in most cases pilot hole enlarging, known as [pre-reaming," will be necessary. Pre-reaming is required to provide a bore diameter large enough so that the pipeline can be installed in the drilled crossing. Based on the final desired diameter and soil conditions this process may include one or more stages.

non-dig hole opener

hole opener

Third : PULL BACK

Once the drilled hole has been enlarged to the required diameter and cleaned adequately, the pipeline is installed. When applicable, the pipeline is pre-assembled in a single string and placed on rollers prior to pullback. For pullback, a reamer is connected to the Drill Pipe. Behind the reamer a swivel is connected allowing the drill pipe to rotate the reamer without allowing the transfer of torque to the product pipe. The drill pipe is then pulled back towards the entry point until the pipeline is fully installed.

non-dig hole opener1


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