Downhole Drilling Tools, Slick /Spiral Drill Collar AISI 4145H

Tiptop provides a full range of slick and spiral drill collars in AISI 4145H or AISI 4145H modified steel. All the materials are heat treated in full length with best material quality.

Slick Drill Collar: we can produce from 2 7/8’’ OD to 14’’ OD drill collar with API, Non API, or special connections.

Spiral Drill Collar: we can produce three right-hand spiral grooves on drill collar. Spiral grooves decrease the volume of contact between well side and pipe, and it leads to reduce the occurrence of differential pressure sticking. The weight of spiral drill collar is 4% less than slick drill collar at small size. Spiral drill collar can be divided in to Type I and Type II according to spiral grooves.

Mechanical properties guaranteed to 1.5” below surface at ambient temperature; Enhanced fatigue resistance (threads cold-rolled, pin-relief groove and box bore back); Phos-coated to prevent galling; and Hardbanding is available upon request.

The upper radius of the elevator recess is cold-rolled to increase product life. Slip and elevator recesses can be used together or separately. Special drill pipe elevator designs can be supplied for automated handling operations to decrease non-productive time.

Please contact us to order your drill collar.

Tiptop was established in the year of 2006, located in the center of China, Xi’an City, which is an ISO certified comprehensive manufacturer & distributor in the field of Oil & Gas upstream, downhole drilling tools, downhole fishing tools, downhole mud motor, and servicing the worldwide drilling companies, EPC contractors and oil companies. With our great diligence & years of experiences, we have built a long term cooperation with clients from North America, Middle East, Europe, Southeast Asia and other areas.

-One stop procurement service at more favorable prices

Being in the field of oilfiled for more than 13 years , Tiptop team can offer customers with whole package requirements in favorable prices , which are supported by Tiptop qualified vendors .

-Strict quality control & Continuous after-sales service

All of Tiptop supplied products are from API certified manufacturers. For each enquiry, from order placement to final delivery, no matter for the whole package or small spare parts, we have internal inspection team to ensure the superior quality, strong packing & timely delivery. Any TPI inspection are available with Tiptop from SGS/BV/TUV/DNV etc..

Besides,Thoughtful and prompt after-sales service will be provided to guarantee customerS' benefits .