Multi-Cycle Circulating Valve For Drill Stem Testing in Cased Hole

Introudction of DST OMNI Valve

The Multi-Cycle Circulating Valve is the part of drill stem testing tool string. It is also called OMNI Valve in Halliburton type. The multi-cycle circulating valve is operated by differential pressure which can offer multi open and closed cycles. Shear pins in the multi- cycle circulating valve hold the tool in the closed position during the run-in-hole. Once on depth, applied pressure shears the pins, and allow the tool to cycle through forward circulating, reverse circulating and closed positions.

Operation of the DST OMNI Valve /Multy-Cycle Circulating Valve

When the Multy-Cycle Circulating Valve is in the well test position, we can do the flow test in the oil well. In this test position, the circulating ports of the OMNI Valve are closed and the ball valve is opened. When the downhole drills stem test is closed, the Multy-Cycle Circulating Valve is in the well test position during flow and shut in period, and the workstring can be pressure-tested in the blank position as the ball valve closes before the cicualting valve opens. When the circulating ports of the Multy-Cycle Circulating Valve are open and the ball valve is closed, the fluid in the oil well can be pumped in either direction through the tool in the circulating position.

Technical parameter of DST OMNI Valve

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

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. 

DST Tools Warehouse