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Hejian Deris Petroleum Drilling Equipment Co.,Ltd.

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Drilling Tools

Product categories of Drilling Tools, we are specialized manufacturers from China, Drilling Tools, Trenchless Drill Tools suppliers/factory, wholesale high-quality products of PDCdc Drill Bit Nozzle R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!

Cross-over Sub

PDC Cutters

Bit Breaker

Tricone Bit Nozzle

Tri Hawk Drill Bit

Hejian Deris Both manufacturer and distributor, specialize on Drilling Tools include tricone Bit Breaker ,Pdc Bit Breaker , PDC Cutters , Cross-Over Sub , Tricone Bit nozzles, PDC Bit nozzles,Tri Hawk Drill Bit

Optimal test method for drilling parameters:
1. Drill for 5 minutes with initially selected proper WOB and moderate RPM (60~100r/min) and record the ROP (as shown in the table below).
2. Moderately inctease WOB and keep the same RPM and drill under this WOB for 5 minutes and again record the RPO (as shown in the table below).
3. Decrease WOB b the same extent and tepeat step 2.
4. Find the WOB in the tow groups of test than can yield highest ROP.
5. Properly change RPM under optimal WOB and record the ROP (as shown in the table below).
6. Select the RPM at the highest ROP.
7. Set the drilling parameter at the best combination:60KN RPM: 120r/min


Times

RPM:100r/min

WOB:60KN

WOB

(KN)

Drilling hour

(Min/m)

RPM

(r/min)

Drilling hour

(Min/m)

1

80

8

100

7

2

100

9

120

5.5

3

60

7

80

8

Select

60

7

120

5.5