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Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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+86 13525609655

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rsdgj@pyzyrsd.com

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Road West, North Branch, Jingkai Road, Puyang City

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API 10TR4 : 2008 SELECTION OF CENTRALIZERS FOR PRIMARY ...
API 10TR4 : 2008 SELECTION OF CENTRALIZERS FOR PRIMARY ...

2.1 ,Definition, of Standoff 2.2 Casing Centralization and Centralizing Devices 3 General Discussion 3.1 ,Centralizer, Types Available 3.2 Advantages and Limitations of ,Centralizer, Types 3.3 Selecting the Type of ,Centralizer, 3.4 Drag Force vs Standoff Considerations 3.5 Location and …

Spring bow centralizer and method for its use in a ...
Spring bow centralizer and method for its use in a ...

A ,centralizer, for ,well, casing (16) functions in an annular space between the casing (16) and a wellbore (20). It comprises a pair of axially spaced-apart and aligned collars (12) adapted to encircle the ,well, casing and a plurality of spring bows (14) extending between and secured to the collars.

Scratcher Definition - Oilfield Glossary - Oil and Gas ...
Scratcher Definition - Oilfield Glossary - Oil and Gas ...

Centralizer. 1. A bladed or bow spring tool that helps center tools or pipe in the wellbore. 2. A mechanical device to position casing concentrically in ...

Cementing tools | JC Petro
Cementing tools | JC Petro

Definition,: The liner hanger is a special device used in oil fields to hang liners within an oil ,well,.It suspends the liner pipe at the bottom of the upper casing string and performs cementing work. Function: It can reduce the flow resistance of the replacement construction and is conducive to safe construction.

HINGED NON-WELDED BOW SPRING CENTRALIZER (COT-001 ...
HINGED NON-WELDED BOW SPRING CENTRALIZER (COT-001 ...

Which are designed and manufactured as per API Spec 10D. Non Weld Bow centralizers are used to position the casing in the centre of the wellbore in vertical, deviated as ,well, as horizontal wells. The Non Weld Bow Centralizers combine the highest Non Weld ,Centralizer, restoring force with the …

Centralizer electronics housing - Halliburton Energy ...
Centralizer electronics housing - Halliburton Energy ...

A ,centralizer, for downhole oil country tubular goods (OCTG), comprising: a tubular member disposable about a first section of tubing, wherein the tubular member connects the first section of tubing to one or more other sections of tubing; a plurality of blades disposed around an outer circumference surface of the tubular member, at least one blade of the plurality of blades having an inner ...

Spring bow centralizer and method for its use in a ...
Spring bow centralizer and method for its use in a ...

A ,centralizer, for ,well, casing (16) functions in an annular space between the casing (16) and a wellbore (20). It comprises a pair of axially spaced-apart and aligned collars (12) adapted to encircle the ,well, casing and a plurality of spring bows (14) extending between and secured to the collars.

API 10TR4 : 2008 SELECTION OF CENTRALIZERS FOR PRIMARY ...
API 10TR4 : 2008 SELECTION OF CENTRALIZERS FOR PRIMARY ...

2.1 ,Definition, of Standoff 2.2 Casing Centralization and Centralizing Devices 3 General Discussion 3.1 ,Centralizer, Types Available 3.2 Advantages and Limitations of ,Centralizer, Types 3.3 Selecting the Type of ,Centralizer, 3.4 Drag Force vs Standoff Considerations 3.5 Location and …

HINGED NON WELD POSITIVE BOW CENTRALIZER (COT-201 ...
HINGED NON WELD POSITIVE BOW CENTRALIZER (COT-201 ...

High quality Bows made of special alloy steel with uniform hardness provide optimum performance. The bows with extended profile prevent them from hitting against casing collars. The bows are available in a range to accommodate any well profile. Semi Rigid Bow Centralizers undergo a special process of rust prevention before powder coating.

Cement Plug Guide While Drilling Oil & Gas Wells ...
Cement Plug Guide While Drilling Oil & Gas Wells ...

The main application of Cement plugs is to secure a ,well,, cure mud losses, prior to drilling a side track or in the course of ,Well, Abandonment.The spotting of the plugs inside the casing (Check our guide for Casing Design Calculations Steps) or in open hole will be through drill pipe with a ‘stinger’ (smaller bore pipe) extension. And off course the usage of casing preflushes, spacers and ...

headlight audit - VisiCon
headlight audit - VisiCon

Centralizer The centering of the vehicle is done pneumatically with roller rails which are applied to the inner side of the tire. Plastic rollers prevent damage to tires and rims.

Scratcher Definition - Oilfield Glossary - Oil and Gas ...
Scratcher Definition - Oilfield Glossary - Oil and Gas ...

Centralizer. 1. A bladed or bow spring tool that helps center tools or pipe in the wellbore. 2. A mechanical device to position casing concentrically in ...

headlight audit - VisiCon
headlight audit - VisiCon

Centralizer, The centering of the vehicle is done pneumatically with roller rails which are applied to the inner side of the tire. Plastic rollers prevent damage to tires and rims.

HINGED NON WELD POSITIVE BOW CENTRALIZER (COT-201 ...
HINGED NON WELD POSITIVE BOW CENTRALIZER (COT-201 ...

High quality Bows made of special alloy steel with uniform hardness provide optimum performance. The bows with extended profile prevent them from hitting against casing collars. The bows are available in a range to accommodate any well profile. Semi Rigid Bow Centralizers undergo a special process of rust prevention before powder coating.

Cementing tools | JC Petro
Cementing tools | JC Petro

Definition,: The liner hanger is a special device used in oil fields to hang liners within an oil ,well,.It suspends the liner pipe at the bottom of the upper casing string and performs cementing work. Function: It can reduce the flow resistance of the replacement construction and is conducive to safe construction.

Learn the latest casing centralizer news and development ...
Learn the latest casing centralizer news and development ...

Definition, of casing ,centralizer, ZHENGZHOU, April -28, 2019. ,Definition, of casing centralizerA mechanical device that keeps casing from contacting the wellbore wall. A continuous 360-degree an... 2019-03-27 composite ,centralizer, in ,well, cementing

Learn the latest casing centralizer news and development ...
Learn the latest casing centralizer news and development ...

Definition, of casing ,centralizer, ZHENGZHOU, April -28, 2019. ,Definition, of casing centralizerA mechanical device that keeps casing from contacting the wellbore wall. A continuous 360-degree an... 2019-03-27 composite ,centralizer, in ,well, cementing

Cement Plug Guide While Drilling Oil & Gas Wells ...
Cement Plug Guide While Drilling Oil & Gas Wells ...

The main application of Cement plugs is to secure a ,well,, cure mud losses, prior to drilling a side track or in the course of ,Well, Abandonment.The spotting of the plugs inside the casing (Check our guide for Casing Design Calculations Steps) or in open hole will be through drill pipe with a ‘stinger’ (smaller bore pipe) extension. And off course the usage of casing preflushes, spacers and ...

HINGED NON-WELDED BOW SPRING CENTRALIZER (COT-001 ...
HINGED NON-WELDED BOW SPRING CENTRALIZER (COT-001 ...

Which are designed and manufactured as per API Spec 10D. Non Weld Bow centralizers are used to position the casing in the centre of the wellbore in vertical, deviated as ,well, as horizontal wells. The Non Weld Bow Centralizers combine the highest Non Weld ,Centralizer, restoring force with the …

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+86 13525609655

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Road West, North Branch, Jingkai Road, Puyang City