Stab-in Casing Float Collar And Float Shoe API or As required

The technique known as Stab-In Float Collar and Shoe represents an innovative approach utilized for cementing large diameter casings during drilling operations. This method requires directly inserting the drill pipe into the Float Shoe or Collar, while pumping cement through the drill pipe until it reaches the surface. To ensure the proper placement of cement, a wiper dart can be utilized to displace the cement to the bottom of the drill pipe. Once this process is completed, the drill pipe is lifted, circulated to ensure even cement distribution, and eventually removed from the wellbore.

It is crucial to point out that when implementing the Stab-In Float Collar and Shoe technique, large plugs are mandatory to separate the cement from the mud. Both the plugs and any cement present in the casing should be drilled out. This particular technique is designed explicitly for the cementing of large diameter casings that are lowered using drill pipes. Due to the substantial volume displacement associated with these casings, significant attention must be paid during the cementing process.

Features of Float Collar and float Shoe:

• Small diameter inner string off drill pipe is used to displace cement which minimizes displacement volume behind Cement and there by reduces contamination and save time.
• Drill out of cement inside large casing is minimized by controlling cement top with displacement fluid in drill pipe And Plunger valve in Stab in Shoe
• Improve displacement accuracy — cement mixing and pumping continues until cement returns reach surface
• Get better cement quality — the reduced cement/mud interface area and high velocity of flow in the Drill
• Pipe Minimize cement contamination while the short pumping time eliminates the need for cement retarders
• Reduce cement volume — conventional displacement requires calculation of excess cement factor, whereas with Stab-in methods excess cement need be no greater than the volume of the drill pipe. No large plugs are needed
• Reduce net rig time — circulating, pumping, and drill-out times are minimized
• Cementing Accessories, Casing Centralizer, Pressure Vessels, Cementing Tool, Pumping Units, Centralizers, Accessories, Sucker Rod
  

Specification of Float Collar and float Shoe:

Specification (in)		O.D. (mm)	Total Length	I.D. (mm)	Min.Dia. (mm)	Connection Type	Working Pressure
Float Collar	5"	141.3	500	110	50	BTC/LTC/BCSG	35
	5 1/2"	153.67	530	112	55	BTC/LTC/BCSG	35
	7"	194.46	586	162.5	77	BTC/LTC/BCSG	35
	9 5/8"	270	720	225	77	BTC/LTC/BCSG	35
	13 3/8"	365	720	319	77	BTC/LTC/BCSG	35
	20"	533.4	720	475	77	BTC/LTC/BCSG	35
Float Shoe	5"	140.3	495	110	50	BTC/LTC/BCSG	35
	5 1/2"	153.67	514	112	55	BTC/LTC/BCSG	35
	7"	194.46	533	162.5	77	BTC/LTC/BCSG	35
	9 5/8"	269.88	550	225	77	BTC/LTC/BCSG	35
	13 3/8"	339.7	550	319	77	BTC/LTC/BCSG	35
	20"	534	652	475	77	BTC/LTC/BCSG	35

Contact meChris Guan

Business Development Manager

Mazhuangqiao Industrial Park,Puyang City,Hanan Province,China.

 

Mobile: +86 16650566961

Tel: +0086-0393-4807842

Email: Chris(at)zspetro.com