Description
Fishing Bumper Sub
API Fishing Bumper Sub has a long working stroke and large down jarring force. The simple structure can be in favor in maintenance and service. It is a releasing tool during the fishing
operation.
Lubricated Fishing Bumper Sub
The working chamber of Model “RSXJ” API Lubricating Fishing Bumper Sub should be filling with wearable hydraulic oil, acting the lubrication as to prolong the service life. It has a long stroke and large jarring force. According to specific instance, the releasing stuck of down-jarring should be different on various occasions.
Continuous Bumper Sub
API Continuous Bumper Sub is a kind of fishing stuck-freeing tool, which can achieve continuous down jarring. The principle of the tool is that the internal piston mechanism is pushed by mud pressure, which produces instantaneous downward impact force when it reaches a certain position.
Because the slip-locking mechanism is using in the core part, the tool can produce downward jarring at a certain frequency under different displacement to achieve the purpose of freeing stuck.
ELITE Fishing Bumper Sub
| Model | O.D. mm(in) | I.D. mm(in) | Connec tion API |
Max working Load kN(lb) |
Tensie Yield Strength kN(lb) |
Max.Working Torgue kN(ft.lbs) |
Torsional Yield Strength kN(ft.lbs) |
Max. Stroke mm(in) | Closed overall length mm(in) |
| RSXJ31 | 80(3-1/8) | 25.4(1) | NC23 | 340(76000) | 510(115000) | 3(2200) | 6(4400) | 450(17.71) | 1510(59.45) |
| RSXJ241 | 241(9-1/2) | 76(3) | 7 5/8REG | 3500(787000) | 4100(920000) | 40(29500) | 180(133000) | 1600(62.99) | 2925(115.16) |
| RSXJ73 | 73(2-7/8) | 20(13/16) | 2 3/8TBG | 300(67440) | 500(112400) | 2.6(1916) | 4.5(3317) | 268(10.5) | |
| RSXJ203 | 203(8) | 78(3) | 6 5/8REG | 2800(629440) | 4896(1100620) | 35(25805) | 145(106908) | 462(18.2) |
API Full-Hydraulic Drilling Jar
Full-Hydraulic Drilling Jar is a hydraulic up-jarring stuck freeing tool while drilling. It adopts needle valve structure. The tool is hydraulic up jarring only, which can realize stepless adjustment of up-jarring tonnage. Simple structure, easy operation and easy maintenance.
| Model | Tool OD mm (in) |
IDmm (in) |
Connection API | Allowable Working Tensile kN(lb) |
Allowable Working Torsional kN·m(lb· ft) |
Max. Up Jarring kN(lb) |
Up Stroke mm | Open Length mm |
| RSS127 | 127(5) | 50(2) | NC38 | 110(250000) | 15(11000) | 35(78000) | 152 | 4209 |
| RSS172 | 172(6-3/4) | 57(2 1/4) | NC50 | 2000(450000) | 25(18000) | 700(160000) | 152 | 4461 |
| RSS203 | 203(8) | 76.2(3 ) | 6 5/8REG | 2800(630000) | 35(26000) | 1000(225000) | 152 | 4514 |
Hydraulic Jar
API hydraulic construction can realize the stepless control of up jarring tonnage. The scope of time delay interval can be 30s～240s; the scope of service temperature can be -40℃～180℃. It can be used with Model RSJQ Accelerator as for better effect. It should be used for up jarring fishing and coring.
