A flat bottom shoe is a tool for grinding down dropped objects in a well. Such objects include drill bits, roller cones, calipers, casing shoes, drill pipes, drill string connectors, deep well pump parts, and other dropped objects. As shown in the diagram, it consists of a shoe body and wear-resistant alloy. The shoe body consists of two cylindrical sections. The smaller cylinder has connection threads at the top; these threads can be external or internal according to customer requirements. The larger cylinder has overflow channels on the bottom and sides. The bottom overflow channel has mud circulation holes. The space between the overflow channels is filled with YD alloy or other wear-resistant material. The flat bottom shoe uses the YD alloy and wear-resistant material welded to its bottom surface to grind and crush dropped objects under the action of drilling pressure. The resulting debris is then carried to the surface by the circulating drilling fluid.
Details >
Conical shoe is mainly used to repair deformed fish top or to trim the burrs and fins caused by various tools connecting the casing during underreaming, and to clean the mineral crystals and other hard debris remaining on the wellbore, so as to restore the diameter.
Details >
An economic shoe is a tool for grinding down dropped objects in a well. Such as grinding down drill bits, bit wheels, calipers, casing shoes, drill pipes, drill string connectors, deep well pump parts, etc. The structure is shown in the figure, consisting of a shoe body and wear-resistant alloy. The shoe body consists of two cylindrical sections. The upper part of the smaller cylinder has connecting threads, which can be external or internal threads according to user requirements. The bottom and sides of the larger cylinder have overflow channels. The bottom overflow channel has mud circulation holes, and the space between the overflow channels is filled with YD alloy or other wear-resistant materials.
Details >
Knife-wing shoe is a tool for grinding downhole dropped objects. Such as grinding bits, drill wheels, calipers, casing shoes, drill pipes, drill string connectors, deep well pump accessories, etc. Because it has a straightening device, it can prevent the dropped objects from being ground obliquely. It consists of a connector body and wear-resistant alloy or alloy column. The main body has a straightening wing, which prevents grinding deviation when grinding dropped objects. The knife-wing shoe relies on the protruding YD alloy wings on its bottom surface to cut into and grind the dropped objects under the action of drilling pressure, and the grinding debris is brought to the ground by the circulating drilling fluid.
Details >
Used to repair slightly bent or mildly deformed casings, casing sections that encounter obstructions during the repair of the lower casing, and casing sections with minor misalignment in the broken-off sections.
Details >
EMAIL：info@nsj-drilling.com
TEL：+86 4536293088
FAX：0453-6293789
POSTCODE：157013
ADDRESS：No.56 Xingye Road, Mudanjiang City, Heilongjiang, China.
©2021 Heilongjiang Northern Shuangjia Drilling Machinery Co., Ltd. Hei ICP No. 16001467-3
