API Oilfield Drilling cementing casing spiral Casing Centralizer

Casing centralizer is one of the necessary conventional casing accessories, upon well operations completion, the rational use of casing centralizer can play the role of:Reducing lower casing resistance phenomenon, making the casing smoothly down to the design position

Technical Parameter Spring Casing Centralizer Size(In) OD(mm) IN(mm) Height(mm) Max Start-up Force(N) Min Reset Force(N) 20" 680 512 575 ≤16725 ≥8363 13-3/8" 455 342 560 ≤10853 ≥5427 9-5/8"*12-1/4" 335 248 560 ≤7117 ≥7117 7" 235 181 560 ≤4626 ≥4626 6-5/8"*8-3/4" 238 171 560 ≤4270 ≥4270 5-1/2”*8-1/2” 235 142 560 ≤2758 ≥2758 Rigid Centralizer 13-3/8" 437 344 180 9-5/8"*12-1/4" 305 248 120 7" 210 182 120 6-5/8"*8-3/4" 215 171 120 5-1/2"*8-1/2" 210 142 120

Bow-spring centralizer1.These Centralizers are designed for High Restoring Force and Low Starting Force for centralizing the casing pipe in a Vertical,Horizontal and Deviated well2.Premium quality Bows are made of special alloy steel and hot formed in totally controlled heat treatment plant3.Spec and performance index of bow spring casing centralizer meet API Spec 10D. The woven centralizer is connected by pin when in use, the unfolded centralizer can be stacked flatly for convenient storage and transportation.Rigid roller centralizerRigid casing centralizer is used in deviated wells and horizontal wells. There are several blades on the rigid rollercentralizer that can keep casing from contacting the well bore wall

Semi-rigid Centralizer Single Bow Spring Centralizer Double-bow Spring Centralizer Integral Centralizer Rigid Centralizer  Rigid Roller Centralizer

Company Information

Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC. Our group have 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC.