Drillstar Industries can provide you with the full range of cross-overs and subs, with sizes up to 20" OD :
- Straight OD subs.
- Cross-Overs or reduced section subs.
- Bit subs.
- Saver subs
- Rotary subs
- Pup joints
All our Cross-Overs and subs are made according to API specifications (7-1 and/or 5CT) and API standard features can be added (stress relief grooves, bores for API float valves, etc.) They can be fitted with the whole range of API drill stem (REG, API, etc.) and casing threads (STC, LTC, BTC...). VAM premium threads can also be used, as well as other special connections (Hydril FJWP, etc.) Our subs are fully machined from certified AISI 4145H alloy steel. Other materials such as non-magnetic steel, inconel, monel, stainless steel, aluminium, titanium, etc. can be used.
RILLSTAR mud screens have been the choice of major drilling contractors worldwide for over 20 years.
About 1 meter long, they provide a wide screening surface, limiting plugging while still retaining tiny debris thanks to 6 mm holes.
Their durability is ensured by the choice of quality material and premium making. They are built out of 4 mm thick high-grade carbon steel perforated plates, ensuring a lifetime several times longer than thinner models.
DRILLSTAR mud screens are designed with a removable internal spear. When the screen is used on the drill floor, removing the spear allows for easy cleaning of trapped debris. When the screen is used downhole, the spear can be easily fished in case of plugged pipe or if a back-off shot needs to be run.
Screens are delivered along with their accessories :
- 2 types of interchangeable fishing necks (1/2" and 7/8").
- Retrieving handle for easy manipulation of the screen on surface.
Section mills are designed for cutting and milling a complete section of casing. All models 4 1/2 in. OD and above are equipped with 2 sets of 3 knives: 1 long set and 1 short set, designed for first cutting and then milling the casing.
Knives can be hardfaced with your choice of TOPLOY carbide grains or TOPMILL/SWORDFISH tungsten carbide inserts. For most jobs, TOPMILL inserts are strongly recommended to improve milling performance.
This tool can be equipped with Flo-tel, which produces a sudden drop in mud pressure when the pipe is cut out, indicating the right time to start applying milling weight.
Drillstar taper taps and die collars are manufactured from high-grade alloy steel and cemented to ensure the highest strength. They are available in a wide range of sizes, and can be equipped with different types of guides.
Drillstar taper taps are either plain or fluted, with four longitudinal grooves which allow the easy evacuation of cuttings. The hardened cutting teeth (wickers) are available with either right-hand or left-hand spiral.
Over a meter in length, the taps offer two particular advantages :
First, they can be screwed into the washover subs, thus allowing the tap to be guided by an external tube.
Secondly, due to the fine tapering of the threads, the tap can be screwed further into the fish head and will accept considerable pull without releasing the fish.
For difficult fishing operations, Drillstar Industries has developed a skirted taper tap. This rugged tool is composed of 3 pieces :
1.A taper tap with an upper pin thread.
Size: from 2-3/8'' to 20'' OD
Seamless or welded pipe
All API steel grades and special grades 13 Cr & super 13 Cr
Range 1, Range 2, Range 3
PSL-1, PSL-2, PSL-3
API 5CT Threads: NUE, EUE, STC, LTC and BTC
High torque connection: DHT/HTC
Semi-premium connection: Premium-GT
Licensed Premium metal-Seal Full 100% CAL-IV
Drillstar hydraulic casing cutter is intended for cutting away a complete section of casing or liner. It is a dependable, rugged tool, easy to operate and maintain in the field.
The cutting blades, lodged in the body, are expanded by mud pressure and can cut multiple concentric strings of casing quickly and safely.
- Cutter arms reinforced with TOPLOY tungsten carbide dressing, designed to tackle without difficulty the hardest grades of casing.
- Can be equipped with Flo-tel, which produces a sudden drop in mud pressure when the pipe is cut out.
- Interchangeable cutter arms, easy to replace in the field.
- Wide choice of top subs and bottom features (bull-nose, connections, etc.)
SPM has accrued more than 60 years of experience in manufacturing solid metal gaskets for high pressures, high temperatures and corrosive agents applications that comply with API6A, ASME B16-20, EN 12560, and ISO 10423 standards.
Our products are certified and approved by the leading international contractors.
We feel that a gasket is, above all else, an element of safety.
Traceability is guaranteed:
Each lot of materials supplied has passed our quality control system (ISO 9001: 2008 and API Spec 6A-0200) and our lots are systematically inspected by PMI-type testing.
Standard and special gaskets:
Our expertise is focused on the complete manufacturing of standard or special metal axisymmetric gaskets. A large stock of standard gaskets is available. Whatever your needs might be, we have mastered all of the requirements set out by the standards as well as customers’ special needs.
Flow nozzle is installed on pipe line to ensure evolution of fluid cross flow section (by elliptic profile) in order to create calibrated differential pressure loss. The measurement of if by 1 or x pressure taps pair(s) allow to define fluid flow rate.
Process norm: NF EN ISO 5167-3, ASME PTC 6, ASME MFC-3M
Construction code: NF EN 13480, RCC-M, ASME, CODETI
SPM capability: DN25 to DN1000