back pressure valve for drill string

Brand Name:ATO

Model Number:NC50

Place of Origin:CHINA

.... It is used to hold the tool open therefore it is possible to stab the valve while the fluid is flowing through the drill pipe. With the IBOP valve installed in the drill string, it allows you to strip in hole without mud flowing through the drill sting.

Model Number:All size

Place of Origin:China

Inside BOP / Drill Tool Check Valve / Drop-In Check Valve / Upper and Lower Kelly Cock Valve Product Description INSIDE BOP Drill-Tool Check Valve Drill-tool check Valve is a main Blowout prevent tool in drill tool and should be classified into four kinds ...

Brand Name:ZZ TOP OIL TOOLS

Model Number:Tubing String Tester Valve

Place of Origin:China

...String Tester Valve / Flapper TST Valve For DST service The Tubing String Testing Valve is a full-opening valve in flapper type. The tubing string tester valve works as downhole tester valve for taking the pressure-test in drill stem test string while running in the hole. The tubing string tester valve is operated after it is stung into a permanent packer or after a retrievable packer is set. The TST Valve requires a differential pressure

Brand Name:Lake

Model Number:All models

Place of Origin:China

API Full Opening Safety Valve Product Description Full Opening Safety Valve is a ball type safety valve used to stop flow through the drill string when the drill string is being withdrawn from the well. Our Full Opening Safety Valve is dual body full-...

Brand Name:Techcore

Model Number:TST Valve

Place of Origin:CHINA

...String Tester Valve Flapper TST Valve The TST valve is the tubing string tester valve as the part of the DST Toolstring during the well pressure-test the workstring while running in the hole. The tubing string tester is featured with full bore design and requires a differential pressure between the annulus and the tubing to shear. The tubing string tester valve is applied in cased hole drill...

Brand Name:ZS

Model Number:2000psi to 20000 pis

Place of Origin:China,Henan

Oil & Gas Production Christmas Trees and Cementing head These units have a critical role in the control of wellhead pressure and the management of oil and gas flow. They come in various structural configurations, including single-wing or dual-wing designs...

Brand Name:TR Solids Control

Model Number:TRDXS

Place of Origin:Xi'an China

... seat, ensuring positive closure whenever required. Installed in the drill string, it can protect the rotary swivel, rotary hose, stand pipe, and mud pumps from drill pipe kicks. It may be used along with high-pressure pumps to maintain well control by

Brand Name:SOLLROC

Model Number:6''-8''

Place of Origin:China

.... It relies on three elements for drilling holes: bit loading (weight), rotation and air. These active elements combine to be efficient at crushing rock Product Advantages: 1.The most suitable ...

Brand Name:Techcore

Model Number:Drain Valve For DST

Place of Origin:China

Drill Stem Testing Tools Drain Valve DST Tools For Well Testing​ Sleeve type drain valve is the DST Tools for drill stem testing service, the drain valve is used to drain the volume fluid and release pressure when string testing finished. The ports in the sleeve of drain valve...

Brand Name:SINOCOREDRILL

Model Number:BOU NOU HOU

Place of Origin:CHINA

...Drilling Core Barrel Head Assembly Overshot 1.Faster coring at greater depths 2.Good stability due to constant diameter of the drill string 3.excellent hydraulics 4.Good core recovery Underground Head Assembly features dual lip seals and a pump-in valve for faster tripping times and positive latch indication; the location of the lip seals prevents in ground fluid or gas pressure...

Place of Origin:Jiangsu, China

Brand Name:GaoFeng

Internal Hydraulic Cutter for 2-7/8" and 3-1/2" tubing for Completion String Product Description 1, The Hydraulic tubing cutter is Pressure activated 2, It is designed to cut the tubing and casing 3, It is recommended to use in high deviation wel...

Brand Name:New Diamond

Model Number:NQL series

Place of Origin:Hunan, China (Mainland)

Description When percussion or hammer drilling the percussion mechanism is called a DTH or down the hole hammer. This drilling tool is located directly above the down hole hammer bit. The driller transfers weight to the bit through the drill pipe as well...