Hollow Plug Impact Reversing Sub Open Hole DST 3 7 / 8" For Oilfield

Hollow Plug Impact Reversing Sub Open Hole DST 3 7 / 8" For Oilfield

High Pressure Drill Stem Testing

Introduction of Hollow Plug Impact Reversing Sub

The Hollow Plug Impact Reversing Sub is applied for the open hole drill stem testing operation, the reversing sub is served as a circulating valve in the DST working string. The Hollow Plug Impact Reversing Sub is operated by inner pressure to cut off the shear pins, and then open the circulating port on it, when

circulating work is needed.

Constructure of Hollow Plug Impact Reversing Sub

The hollow plug impact reversing sub is composed of valve body, shear pin plate seat, shear pin plate, shear pins and sealing rings. The shear pin plate seat is connected to the valve body through connecting thread and the shear pin plate is restricted in the shear pin plate seat through shear pins. It has simple construction and convenient maintenance.

Specification of Open hole 3 7/8" Hollow Plug Impact Reversing Sub

Test required to check the hollow plug impact reversing sub

* Internal Pressure sealing test:

Clamp Valve body, Install test piston . Connect pressure test pipeline, sensor and pressure test pump to pressure test sub. Then install the pressure test sub to the both ends of the tool and put it into the pressure test groove.Hold the pressure for 15 minutes with no leakage.

Shear Pin Cutting off test

* Install the shear pin plate seat, shear pin plate and shear pins, with the OD of shear pin in the short casing of 6 5/8” RTTS Packer. Then put the tool into the pressure test groove.

Advantage of the Techcore Oil Tools

Techcore Oil Tools is professional in designing and manufacturing the Drill Stem Testing Tools for more than Ten years, the professional Reserch and Development (R&D) department improves the advanced technology in design of the Drill stem testing tools for well testing service to meet different requirement of Oil Well testing.

* Techcore insist on superior quality, strong packing & timely delivery.

* Techcore supply the Third party inspection including SGS, BV, DNV etc.

* Techcore do the best to supply thoughtful and prompt after-sales service to guarantee for the

customers' benefits

* Techcore supply the cost effect products with 12 months guarantee

* Techcore insist on the traceability of each Drill stem testing tools and related DST parts from the

raw material to the finished products to meet on requirements of onshore and offshore standards.

Welcome to contact us for more information about our tools and service!

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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