CIPDB › China Industry › Metallurgy, Mineral & Energy › Petroleum Equipment & Machinery
API Junk Sub Downhole Tools1
Petroleum Equipment MachineryDownhole ToolPetroleum Machinery Part
Liaoning Tolian Technology Development Co, . Ltd
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Product Description Product description Junk SubJunk Sub(Fishing Cup)is normally used to catch and remove junks that are too heavy to be circulated preventing them from settling at the bottom of the well-bore. Typical junks are shivers and fallen objects such as carbide tooth, drill bit and bearings which are too heavy to be removed from the well-hole through conventional fluid circulation. Junk Subs main function is to keep well bottom clean to increase bit service life, reduce and prevent drill bit from unexpected damage. StructureAs the outer diameter of the extemal bowl is bigger, the space between the extemal bow and the well hole is reduced guiding most of the fluid through the cup. The mandrel diameter at the cup mouth is bigger with larger annular space. Thus, the fluid forms a swirl at the cup mouth as the fluid flows down through the cup with a sudden reduction in capacity at the bottom. Through this working principle,some heavy objects will drop in the cup and be fished out, ensuring that the well-bore bottom is cleaned. ModelBottom Conn.×Top ConnOD of cup(mm)OD of upper endIDL of cup(mm)OALHole size(mm)(mm)(mm)LB792 3/8REG B*2 3/8REG P79791925084588.9~98.4LB892 3/8REG B*2 3/8REG P897819250845108~117.5LB942 3/8REG B*2 3/8REG P947919250850108~117.5LB1022 7/8REG B*2 7/8REG P10293.531.8250850117.5~124LB1143 1/2REG B*3 1/2REG P115105.538.1250915130~149LB1273 1/2REG B*3 1/2REG P12710838.1250850152.4~162LB1333 1/2REG B*3 1/2REG P13310838.1250875152.4~162LB1403 1/2REG B*3 1/2REG P14010838.1250875165~190.5LB1463 1/2REG B*3 1/2REG P14610838.1250875168~190.5LB1654 1/2REG B*4 1/2REG P16514057.2250915190.5~216LB1684 1/2REG B*4 1/2REG P16814057.2250915190.5~216LB1784 1/2REG B*4 1/2REG P17814657.2250915219~244.5LB1944 1/2REG B*4 1/2REG P19414657.2250950229~273LB2004 1/2REG B*4 1/2REG P20014657.2250950229~273LB2196 5/8REG B*6 5/8REG P21919776.2250950244~289Marina -----------------------------------------------------------------Liaoning Tolian Technology development Co,. LtdAdress:No.45 Shuangde Street,Tiexi Distrct,Anshan City,Liaoning Province,China
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