Kingdream PDC bit

     Kingdream PDC bit production line, equip with more than 200 sets of lathes,heat treatment machine, sandblasting machine, production and testing equipment, rich experienced welding engineer working on PDC bit industry for many years, can produce matrix body and steel body PDC bits from 3-7/8″to 22″, so we can ensure the final quality of PDC bit by control every procedure of process.

    Technical predominance: The company has powerful technical strength and owns experienced experts and skilled operators that have involved in R&D, manufacture and marketing of diamond bit for many years. During the period from 1986 to 1997, the company had introduced advanced bit manufacturing technologies from abroad for three times. It innovates unceasingly while digesting the introduced technologies, and the company currently owns many advanced bit related technologies including CAD/CAM, CFD (Computational Fluid Dynamics) and logging data analysis & selection software, etc. The company also carries out diamond bit basic researches with R&D center of Kingdream Public Limited Company and other research institutes so that continuous development and technical leading position of the company is guaranteed.

       Quality assurance: The company is licensed under ISO9001 and certified to API. Steady quality and excellent performance of the bits are assured by using sophisticated equipment such as 5-axis machining center, NC lathes, NC sintering furnace and integrated brazing-welding machine, etc. and strictly observing requirements of the quality system

Additional Features

A - vibration absorber

Enhancing the ability of thebit to drill through soft and hard interbeded formationsin order to protect PDC cutters.

D - double row cutters

Penetration ability and wear-resistance of the bit in mediumhard formation can beimproved.

G - Spiral gage protection

Bit is force-balanced that resulting better stability of the bit.

R - Back-reaming Making

the bit more suitable for various drilling processes to preventsticking.

S - spiral blade Cutterlayout

densities areincreased and adaptive abilities of the bit inhard formations are improved

T - special gage protection

Enhancing gage protection ability of the bit.

Table of classification of formation hardness and bit selection

Roller cone bit IADC codeFormation descriptionRock typeCompressivestrength(Mpa)ROP m/hlADC code of diamond bitRecommended type of diamond bit
111/124Very soft: sticky softformation with lowcompressive strengthClay
Siltstone
Sandstone
<25>20M/S112~M/S223KS1952 KM1952
KS1942 KM/SD1952
KM1942
KM/SD1942
116/137Soft: soft formationwith low compressivestrength and highdrillability.Clay rock
Marl
Lignite
Sandstone
25~5010~20M/S222~M/S323KS1963 KM1952
KS1952 KM/SD1952
KS1652 KM1652
KS1642 KM/SD1652
KM1642
417/527Medium soft: soft tomedium formation withlow compressivestrength and streak.Clay rock, Marl
Lignite, Sandstone
Siltstone, Anhydrite
Tuff
50~755~15M/S323~M/S433KS1963 KM1953
KS1652 KM/SD1953
KS1362 KM1662
KM/SD1653 KM1375
KM/SD1375 KM/SD1363
KM1363
517/537Medium: medium tohard formation withhigh compressivestrength and thinabrasive streak.Mudstone
Dark rock
Shale
75~1002~6M322~M443KS1652 KM1662
KS1362 KM/SD1662
KM1375 KM/SD1375
KM1363 KM/SD1363
537/617Medium hard: hard anddense formation withhigh compressivestrength and mediumabrasiveness.Dark rock
Hard shale
Anhydrite
Sandstone
Dolomite
100~2001.5~3M422~M444KSH1382 KMH1673
KMH1662 KMH1653
KMH1375

Kingdream PDC bit

KM series

Matrix body PDC bit for fast drilling applications

Main structure features:

  • PDC cutters of different features are selected and bit profile design is optimized to suit different drilling applications in different formations to satisfy different requirements when drilling soft to medium hard formations without sulfureted hydrogen well section.
  • Cutting structure is force balanced, non-symmetrical blade and the deep junk slots are designed to dramatically improve ROP of the bit.
  • Matrix material of the bit adopts high quality steel and wear-resistance material with high performance is built-up welded on the surface of blades to prevent matrix material from eroding.
  • Hydraulic system of the bit is optimized using dynamic flow pattern simulation technology to enhance cleaning and cooling effects of the bit to effectively prevent bit from balling.
  • Machining precision and retention of cutters are ensured by using milling center with high performance five axes and high-speed milling technology.

Kingdream PDC bit

KS series

Steel body PDC bit

Main structure features:

  • PDC cutters of different features are selected and bit profile design is optimized to suit different drilling applications in different fommations to satisfy different requirements when drilling soft to medium hard formations.
  • Cutting structure is force balanced, non-symmetrical blade and wide gage are designed so that the bit drills more stable and resulting longer working life of the
    bit.
  • Better wear resistance and higher strength of the bit are guaranteed in regard tomaterial and structure by using matrix body material with self-owned intellectual property rights and combining FEA analysis technology.
  • Hydraulic system of the bit is optimized using dynamic flow pattem simulation technology to enhance cleaning and cooling effects of the bit to effectively prevent bit from balling.
  • CNC sintering process uses full automatic control. Inside and outside temperature of the bit is monitored during all procedures to fully embody material properties as well as ensure uniformity and stability of product quality.

Kingdream PDC bit

KMD/KSD Series

Matrix/steel body PDC bits suitable for directional drilling

Main structure features:

  • Shallow cone and short gage design make the bit having better steerability to satisfy any demand of directional drilling applications.
  • Optimized profile design and denser cutter layout at shoulder area can guarantee higher side cutting ability of the bit.
  • Inclined gage design to increase the bit’s stability and gage protection indirectional drilling applicatons.
  • Enhanced gage design to improve the bit’s ability of gage protection.
  • Optimized hydraulic design for increased cooling and cleaning effects of thebit in horizontal and directional sections and therefore,to prevent bit balling and improve ROP to the bit.

Kingdream PDC bit

KMH Series

High end matrix body PDC bit suitable for medium and medium hard formations

Main structure features:

  • Specific to characteristics of hard formation and interbeded formation, bit profile is optimized and cutting depth of the bit is controlled to satisfy requirements of drilling medium to medium hard formations.
  • Overall performance of PDC cutters is improved by using high performance PDC cutters of better wear resistance, better impact strength and better thermal stability.
  • Unique cutter layout and specific force balance analysis plus other related technologies, etc. improved the bit’s working life and premature ring type wear of the bit is prevented.
  • Optimized hydraulic design can improve the bit’s cooling effect and therefore, prevent PDC cutter failure caused by high temperature.
  • Bit diameter shrinkage is effectively prevented by enhanced gage protection design.