API Reverse Circulation Junk Basket (RCB) for Well Drilling

• After-sales Service: 7 Days a Week 24 Hours Per Day
• Warranty: 12 Months
• Manufacturing Process: Casting
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Cast Steel
• Transport Package: Standard Export Package
• Specification: customized
• Trademark: BOBAN & OEM
• Origin: China
• HS Code: 8431431000
• Production Capacity: 1000 PCS Per Month

Product Description

Product Description

Reverse Circulating Junk Basket (RCB)

Reverse Circulating Junk Basket (RCB) is a junk retrieval tool designed to remove all types of objects from the bottom of the well bore. This superior tool removes such items as slips, hand tools, bit cones, and any other small pieces of junk from the well. The RCB uses reverse circulation to aid junk recovery

 

 

The tool consists of a top sub, barrel assembly, catcher, and shoe. The barrel assembly consists of an inner and outer barrel, valve seat, cup, and ball. A lift sub is also provided to assist in handling.  

  

Make up the junk basket to the bottom of the string and run into the hole. When the tool is approximately 10 feet from the bottom of the hole, the ball is dropped down the drill pipe. The ball will position itself in the ball seat and reverse circulation will begin. Circulate and begin coring. Combined with the reverse circulation, this guarantees that any junk on the bottom is pumped into the barrel and caught by the catcher assembly. The tool is removed from the hole after cutting 10 to 20 inches of core.

 

Model	OD of barrel	Max.fishing size(mm)	OD of steel ball(mm)	Connection(box)	Hole size(mm)
LL-F381	381	279	57	6 5/8 REG	406-444
LL-F330	330	249	57	6 5/8 REG	349-406
LL-F301	301	216	57	6 5/8 REG	320-346
LL-F279	279	211	57	6 5/8 REG	298-317
LL-F257	257	194	57	6 5/8 REG	273-295
LL-F232A	232	179	57	NC50/6 5/8 REG	244-270
LL-F206	206	157	45	NC50	216-241
LL-F200A	200	154	42	NC50/4 1/2 REG	212-241
LL-F200	200	147	42	NC50	212-241
LL-F178	178	130	42	NC50/4 1/2 REG	190-210
LL-F159	159	120.6	34	4 1/2 REG	168-187
LL-F146A	146	111	34	NC38/3 1/2 REG	155-165
LL-F146	146	105	40	NC38	155-165
LL-F130	130	95.2	34	NC31/3 1/2 REG	143-152
LL-F123	123	90.5	28	NC31/2 7/8 REG	130-140
LL-F121	121	90	34	NC31	130-140
LL-F114	114	77.8	28	NC31/2 7/8 REG	117.5-127
LL-F102	102	63.5	23	NC26/2 3/8 REG	105-114
LL-F97	97	62	30	NC26	108-114
LL-F92	92	57	23	NC26/2 3/8 REG	95.2-102
LL-F89	89	57	23	NC26	95-102