3 7/8’’& 5’’ full bore pressure controlled formation testers are suitable for land and sea operations, and used in vertical well, directional well and multi-well for 5’’, 5 1/2’’, 7’’, 9 5/8’’ various cased hole string formation test. Not suitable of open hole string tool formation test. This series of testers apply annulus pressure to operate down-hole open-close valve (LPR tester). Tester could work with tubing convey perforator together, which could mix formation test with perforation in one running string tools. In process of formation test, could conduct acidification, fracturing, production tests and etc.

3 7/8’’Full bore pressure controlled formation tester

3 7/8’’Round mandrel slip joint

3 7/8’’ Hydraulic circulating valve

3 7/8’’ sampler circulating valve

3 7/8’’ RD sampler

3 7/8’’ Full opening drain

3 7/8’’LPR-N valve

3 7/8’’ Hydraulic jar

5’’ RTTS circulating valve

5 1/2’’ RTTS circulating valve

5 1/2’’,5’’ RTTS safety joint

5’’ RTTS packer

5 1/2’’RTTS packer

3 7/8’’OMNI valve

3 7/8’’ RD circulating valve

3 7/8’’ RD safety circulating valve

Fitting joint (2 7/8 UP TBG.B×2 3/8 IF.P)

3 3/4’’ heavy sieve tube

3 7/8’’Gauge carrier

3 7/8’’VR safety joint

3 7/8’’Eccentric gauge carrier

5’’Full bore pressure controlled formation tester

5’’Round mandrel slip joint

4 5/8’’ hydraulic circulating valve

5’’sampler circulating valve

5’’ RD sampler

5’’ Full opening drain

5’’LPR-N valve

4 5/8’’,5’’Hydraulic jar

7 5/8’’ RTTS circulating valve

9 5/8’’ RTTS circulating valve

7’’, 9 5/8’’ RTTS safety joint

7’’ RTTS packer

9 5/8’’RTTS packer

5’’OMNI valve

5’’ RD circulating valve

5’’ RD safety circulating valve

Fitting joint (2 7/8 UP TBG.P×3 1/2 FH.B)

5’’ heavy sieve tube

5 3/8’’Gauge carrier

4 5/8’’VR safety joint

5’’Eccentric gauge carrier