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:Hole Opener,Diamond Hole Opener,Trenchless Hole Opener,Non-Dig Hole Opener
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Hole Opener

Product categories of Hole Opener, we are specialized manufacturers from China, Hole Opener, Diamond Hole Opener suppliers/factory, wholesale high-quality products of Trenchless Hole Opener R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
China Hole Opener Suppliers

Hejian Deris Both manufacturer and distributor, specialize on Hole Opener ranging from 8inch to 66inch that is divided into three types: MT hole opener and TCI Roller Cones Hole Opener, PDC Hole Opener, Assembly drill bit are used in various compressive strength of the formations. The product widely used for the reaming of the water , oil, gas, petrochemical, sewage, power and fiber optic pipelines in the no-dig horizontal directional drilling.

Feature of Roller Cones hole opener

Hole opener Size

8",10",12",14",16",18",19",20",22",24",26",28",30",32",

36",40",42",44",46",48",52",58",60",66"

Cones type

117, 127, 217, 317, 417,437,517, 537, 617, 637

Cones Bearing

Rubber or metal sealed journal bearing

Connection

3 1/2";4 1/2";6 5/8";7 5/8"API reg pin /box

Nozzle Qty

5NZ (according to your demands)

Make up Torque(KN.m)

4 -4.8 / 6-7.5 / 9.5-12 / 16-22 / 38-43 / 46-54

Formation

soft ,medium soft ,hard,medium hard,very hard formation

PDC hole opener feature

Hole opener Size

8",10",12",14",16",18",19",20",22",24",26",28",30",32",

36",40",42",44",46",48",52",58",60",66"

Blades

3 blades 4 blades 5 blades 6 blades ,7 blades 8 blades 9 blades or as your need

Body type

Matrix and steel body

Connection

3 1/2";4 1/2";6 5/8";7 5/8"API reg pin / box

Cutter size 1308 1313 1613 1616 1916

Nozzle Qty

5NZ (according to your demands)

Make up Torque(KN.m)

4 -4.8 / 6-7.5 / 9.5-12 / 16-22 / 38-43 / 46-54

Formation

soft ,medium soft ,hard,medium hard,very hard formation


The Hole Opener Advantage

Straighter Holes- By drilling a smaller hole with a "pilot" bit, then attaching that said bit onto the bottom of the hole opener. The hole opener will follow the path of the hole drilled by the smaller bit.

Larger Holes with Smaller Rigs - By drilling a hole in stages, larger holes can be drilled with smaller rigs. A smaller hole requires less power.

Replacing Cutters and Cutting Cost- On most Hole Opener designs, the cutters can be easily replaced. The cost to replace a cutter is a fraction of the cost to replace a large Tricone Rock Bit.

Cost of Large Rock Bits - Larger diameter rock bits not only cost a lot, they can be difficult to find. A more economic solution is to use a hole opener that uses smaller tricone rock bit segments..

Flexibility - Hole Openers can be fabricated in just about any size, and can be configured to drill through any formation.

Operational Considerations

Drilling Weight - The choice of drilling weight is determined based on the recommendations of the bit manufacturer and the number of cutters on the hole opener.

Number of Cutters - The number of cutters placed on a hole opener is governed by the following facts:

1.Maximum number which will fit around the perimeter.

2.The greater the number of cutters, the less the weight, which therefore reduces the penetration rate.

3.In softer formations, less weight is needed to penetrate.

4.The greater the number of cutters, the smoother the tool will run.

5.The greater the number of cutters, the greater the cost.

6.The greater the number of cutters, the longer the cutters will last

Rotary Speed - Maximum speed is determined by the manufacturer's recommendation and the calculation to account for the linear distance the cutter is moving per revolution.

Hole Cleaning - A frequently over looked point of hole opener operation is hole cleaning. The volume of cuttings to remove from a hole increase by a squared factor with an increase in hole diameter.




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