Teach you how to choose a home waterproof material

First, environmental protection

Non-toxic, odorless and non-polluting are the basic requirements for indoor waterproofing materials. The scented waterproof coating is highly toxic and will prolong the carcinogen such as benzopyrene and must not be used for indoor waterproofing.

Second, no corrosion

Choose a waterproof material with a neutral pH to avoid acid return, alkali return, cracking and corrosion of metal parts after construction.

Third, long years of durability

Waterproof, home waterproof material, advanced home waterproof material, Chinese brand waterproof material, focus on home waterproofing

The waterproof parts of indoor bathroom, kitchen and other waterproof parts have large humidity, many pipelines, great leakage, and high rework cost. Waterproof materials with permanent leakage, anti-seepage and moisture-proof effects should be preferred.

Fourth, easy construction

The waterproof construction in the interior decoration is mostly done by ordinary plasterers. The simpler the waterproof material is, the better the waterproof construction quality can be ensured.

Five, reliable

Excellent choice. Choose brand products with high reputation, good reputation, high degree of anti-counterfeiting, and international quality system certification.

Hejian Deris Both manufacturer and distributor, specialize on the Diamond PDC Drill Bit / Steel Body PDC Bit / water well PDC Bit / PDC drill bit designed to run at high penetration rates even in applications that call for higher blade and cutter counts. Its unique cutting structure layout adds another dimension to bit stability and smooth running by combining the penetration rate potential of traditional "single set" cutter layouts with the life extending features of a "plural set" cutter layout. The result is a bit that runs up to 20 percent faster than conventional PDC bits with minimum bit wear. 

Steel body PDC bit size from 5 7/8"~17 1/2" . PDC mean polycrystalline diamond cutters 


Steel body PDC bit feature 

1. Double rows spiral five blades design, rational allocation if high quality small size PDC Cutters . The maximum local cutters equivalent density , improve the offensive and abrasive resistance of the bit


2. High quality arc PDC cutters gauge, reduce the abrasion of rock on the bit`s body, increase wear resistance and stability of the drill gauge  


3. Using a dynamic flow simulation technology to optimize the hydraulic design of the PDC bit, so bottom hole flow field optimization, enhanced PDC bit cleaning, cooling capacity, more optimum bottom hole flow pattern and anti-balling .


4. Medium hard formation with high compressive strength and abrasive, such as Limestone, Anhydrite, Dolomite and so on 
Pdc Bit 1
PDC-bit-2

Table of classification of formation hardness and bit selection

Table of classification of formation hardness and bit selection

Roller Cone Bit

IADC code

IADC code of diamond bit

Formation description

Rock type

Compressive strength(Mpa)

ROP(m/h)

111/124

M/S112~M/S223

Very soft:sticky soft formation with low compressive strength.

Clay

Siltstone

sandstone

 

<25

 

>20

116/137

M/S222~M/S323

Soft:soft formation with low compressive strength and high drillability.

Clay rock

Marl

Lignite

sandstone

 

25~50

 

10~20

 

417/527

 

M/S323~M/S433

 

Medium soft:soft to medium formation with low compressive strength and steak.

Clay rock

Marl

Lignite

Sandstone

Siltstone

Anhydrite

Tuff

 

50~75

 

5~15

517/537

M322~M443

Medium:medium to hard formation with high compressive strength and thin abrasive streak.

Mudstone

Dark rock

shale

75~100

2~6

537/617

M422~M444

 

Medium hard:hard and dense formation with high compressive strength and medium abrasiveness.

Dark rock

Hard shale

Anhydrite

Sandstone

Dolomite

100~200

1.5~3



 

PDC bit shank thread and recommended make up torque

Bit size(in)

API regular pin(in)

Recommended up torque(KN.M)

3 1/2~4 1/2

2 3/8 Reg

2.4~2.7

4 17/32~5

2 7/8 Reg

4.2~4.6

5 1/32~7 7/8

3 1/2 Reg

7.1~7.7

7 13/32~9 3/8

4 1/2 Reg

17.0~18.6

9 13/32~14 1/2

6 5/8 Reg

50.3~57.5

14 9/16~18 1/2

7 5/8 Reg

65.5~71.9

Steel Body PDC Bit

Steel Body PDC Bit,Steel Body PDC Drill Bit,Steel Body PDC Concave Drill Bit,8 Blades Steel Body PDC Bit

Hejian Deris Petroleum Drilling Equipment Co.,Ltd. , http://www.welldrillingbit.com

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