OMNI Valve Drill Stem Test Tools Multi Cycle Circulation Valve Annulus Pressure Operation

Introduction of Multi-cycle circulating valve

The Multi-Cycle Circulating Valve is applied for the drill stem testing service as well as other downhole operation in the oilfield. The multi-cycle circulating valves are operated by annulus pressure and have ability for unlimited opening and closing cycles.

Construction Features

The Multi-cycle Circulating Valve is composed with Nitrogen section, oil system, Circulating valve section and a Ball valve section:

* The nitrogen section contains the nitrogen gas that counterbalances the hydrostatic and annulus pressures. The amount of nitrogen in the tool depends on well hydrostatic (mud weight and depth) and downhole temperature. This information must be known to properly prepare the tool for running in.

* Oil system is composed of the power nipple, check valve assemblies, locking connector, rotating mandrel, ratchet, Steel Balls, operating Mandrel, oil chamber case, floating Piston etc.

* Circulating valve sections is comprised of the sealing Nipple, circulating case ,circulating Nipple, circulating mandrel, seal rings etc.

* The ball valve section is comprised of the spring fingers, the upper seat holder, the lower seat holders, the operating pins, the ball valve assemblies ,lower adapter, etc

Application of the Multi-cycle circulating valve

* Full-opening formation testing in cased hole,

* Oil tube tradition perforation

* Tube string testing and cycle operation

* Acidizing and injection operations

Technical parameter of 3 7/8" Multi-cycle circulating valve

Cased Hole Drill Stem Test Multi-cycle Circulating Valve 3 7/8" -15000psi OMNI Valve

ZZ Top Oil Tools Co.,Ltd as head office registered in Xi’an City in 2010, and in 2016, ZZ TOP OIL TOOLS enlarged the downhole oil tools factory under the Brand - TECHCORE in Baoji, which engages in designing and manufacturing the downhole oil tools including DST tools, Coiled tubing tools etc.

As one group, ZZ TOP provides the clients highly efficient & expertise service as well as more comprehensive products to meet the customers' requirements during the work, and insists on "Traceability, Serialization" for each tools and related parts

Equipments List

Techcore specialized in design, manufacture and sales of the oil well downhole tools as below:

* Drill stem testing tools for cased hole,  open hole and slim hole:

Retrievable packer, circulating valve,safety joint, downhole tester valve,LPR- N Valve, multi-cycle circulating valve, hydraulic jar, shock absorber, RD safety circulating valve,CHAMP packer, IPO valve, tubing string test valve, drain valve,RD sampler, super safety valve etc.

* Coiled Tubing Tools: Double slip connector, roll on connector, roll on x thread connector, double flapper check valve, motor head, dual function circulating valve, hydraulic jar, fishing tools etc.

* Perforating tools: Various perforator & perforating gun system, Shaped Charge Body

 *Oil well completion tools include: Subsurface safety valve, wireline retrievable subsurface safety valve, single string production packer, dual strings production packer, ESP packer, mechanical set packer, permanent packer, compensation device, bridge plug, sliding sleeve, nipples etc. 

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