Full Bore Retrievable Packer Downhole Oil Tools 9 5/8" 10000 PSI Well Testing

Introudction of Downhole Retrievable Packer

The Downhole Retrievable Packer is a sort of mechanical setting packer. Featured with full opening design, the downhole retrievable packer allows unrestricted fluid flow and tool movement through the tubing bore. When the downhole retrievable packer is run and retrieved, a pressure balanced bypass valve is held open, in order to prevent swabbing effect. The circulating valve also allows debris to be washed from the top of the packer while releasing. The bypass valve is held closed by pressure from below and in turn helps prevent upward movement of tubing.

Operation of the Downhole retrievable packer

The Downhole Retrievable Packer is run slightly below the expected setting position to set the packer and then picked up and rotated several turns. If the Retrievable Packer is on the bottom, it required only a half-turn. However, in deep or deviated holes, it need several turns with the rotary may. To maintain position, the right-hand torque must be held until the mechanical slips on the tool are set and can start taking weight . It need to equalize pressure to across the packer to unset it.

When picking up the tubing, the circulating valve remains closed, establishing reverse circulation around the lower end of the downhole retrievable packer. The circulating valve is opened for coming out of the hole when the tubing is lowered, rotated to the right, and picked up.

Application of the Retrievable casing packer

* Well testing DST operation

* TCP operation

* Squeeze cementing operations

* Fracturing operations

Features and Benefits of the Round Mandrel Slip Joint

* The retrievable packer is released by straight pull.

* An optional integral circulating valve locks into open or closed position during squeezing or treating operations, and opens easily to allow circulation above the packer.

Specification of the retrievable casing packer

Inner Seal Test Chart of the Retrievable Packer

Downhole Oil Tools Full Bore Retrievable Packer 9 5/8" -10000 psi Well Testing

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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