RTTS Packer

Usage: RTTS Packer is extensively used in well testing, HP acidification, cementing, other oil formation improvement and so on.

Structure features: RTTS Packer has advantages of HT/HP resistance, sealing well, compacted in design, reliable setting, small unset power and etc. It can accomplish many function operations in one single trip, and high success rate of performance in oil sites.

 

PT Packer

Usage: PT Packer could be used in well testing, acidification, fracture, perforation, cementing and many other down-hole operations.

Structure theory: PT Packer is one kind of packers which has slip structure, high load and compressible setting method. It could keep the high differential pressure from one side of casing. PT Packer has larger by pass area below elements, which could reduce suction in running tools and balance two sides of pressure before setting. The by pass is closed by seal valve. Well testing apply large by pass structure firstly, then apply hydraulic hold-down slip top coupling structure.

Y******5/**8 Packer

Usage: Y******5/**8 Packer could be used in stratified well testing, oil recovery, water plugging and acidification. This kind of packer could work with slip type packer or backup slip together.

Structure theory: Running string tools according to setting height and space between tubing and top flange. Below packer, there is tailpipe, slip type packer or backup slip as support. String weight compresses rubber element to increase the ID, which could block and seal oil or casing annular. Pull string upside, rubber element reinstate again.

Features: Increase shear pin structure to avoid wrong setting. When running string tools, wrong setting would happen if Packer stopped to move down and under string weight. Shear pin structure could prevent from wrong setting if running string tools and cut shear pins to down into well.



Y******5/**8 Packer

Usage: Y******5/**8 Packer could be used in stratified well testing, oil recovery, water plugging and acidification. This kind of packer could work with slip type packer together.

Structure features: Increase pressure by tubing to setting piston. Cut setting shear pin when tubing pressure is high enough, setting piston push spring sleeve up and compress rubber element to get annulus. Spring connect with spring seat, which could prevent rubber element return back as releasing tubing pressure.

Pull up string tools, cut shear pins as soon as the friction between rubber element and casing internal surface is higher than cutting power of unsetting shear pins. Spring and spring sleeve move down together, to unset Packer.

Y******5/**8 Rail Type Packer

Usage: This type of packer could set by pulling up & pushing down middle tubing operation conveniently. It is mainly used in stratified well testing, oil recovery, hydraulic pump, fluid pump and etc.

Structure features: When running string tools as required height, steel ball moves from end side of short slot to end side of long slot. Slip open to touch casing surface. String weight compresses rubber element to enlarge diameter, which could seal and block oil and get annulus. Pull up string tools, steel ball moves to end side, cone-shaped seat leaves slip and slip returns back, rubber element returns back and unset packer meanwhile.