Replaceable sleeve stabilizers consist of replaceable sleeves that are mounted on the mandrel body. Consisting of a single mandrel and a replaceable sleeve, replaceable sleeve stabilizers are ideal in remote areas, where repairs and redressing of the blades are not feasible. The sleeve can be changed easily on the drill floor without the need for special tools. As an additional benefit, one mandrel can be used with sleeves of different sizes, reducing equipment costs. The crown surface and the leading edge of the sleeves are provided with protection against abrasion through hard facing. HF-2000, HF-3000 & HF-4000 types of hard facing can be provided based on customer requirements.The sleeve is screwed onto the middle threads on the outside of the mandrel and torqued up to the recommended value.
Mandrels are manufactured from AISI 4145H modified alloy steel fully heat treated (quenched and tempered) full length and sleeves are manufactured from EN-19 steel. The neck regions of mandrels have tensile properties and impact energy requirements equal to those of drill collars of the same size as specified in API 7-1 specification.
UDT’s oilfield equipments and tools help minimize cost, maximize production, thus ensuring superior performance and delivering positive results every time.
UDT downhole tools are used in a variety of formations to perform reaming operations during drilling.
UDT gas lift equipment are used for effective gas lift operations in straight and deviated wells.
UDT wireline winch units are used in both offshore and onshore areas and can be used for production and reservoir operations.
UDT range of connectors are suitable for a wide array of applications such as Drilling, Driving (Piling), Drill & Drive, Jetting, Offshore Jack-up, Offshore Subsea, Slot Recovery, Drilling with Casing and more.