Our Services

The advanced design of gas lift equipment

  • Gas lift valves
  • Chemical injection valves
  • Steam injection valves
  • Gas lift mandrel design of all types
  • KOT tools

About Zlatko Salihbegovic

My name is Zlatko Salihbegovic. I am a graduated Mechanical Engineer from the University of Sarajevo, Yugoslavia/Bosnia and Herzegovina. Used to work in Yugoslavia for KHK company, Belgium for Mannesmann, Germany for Morton Advanced Materials, USA-Louisiana for Morton Advanced Materials and Weatherford in Lafayette, LA for last 20 years before retiring and starting Z-Tech Design LLC. With Weatherford, I worked for the gas lift division’s R&D department.

I hold three patents with Morton Advanced Materials for manufacturing of CVD-chemical vapor deposition Silicon Carbide technical ceramic used in semi-conductor industry # 6464912, two patents in CVD manufacturing of infrared materials ZnS-Zinc Sulfide, ZnSe-Zinc Selenide and infrared-guided missile domes/heads # 6616870, 60883561.

I hold 12 patents (some of these are with my co-workers) in gas lift equipment with Weatherford # 107878889, 9605521, 9593554, 9010353, 7228909, 998886B2, 168623B1, 20160145983A1, 20150083433A1, 2018362224A1, 20150083433A1, 3106351C.

I own 5 patents/pending patents with Z-Tech Design in the field of gas lift valve/mandrel designs # 11242732B2, 11643910B2, 11845120B2, 11686185B2, and one patent in marine propulsion system # 11753128B2. For more details, please check Google patents under my name.

I am fluent in 3 native languages, German, Russian and English.

Z-Tech provides unique highly advanced and best gas lift valve designs based on my 20 years in the field experience and multiple patents.

There are no gas lift valve designs on the market today that offer better bellow protection against high dome and injection pressure.

Our patented TSMS™-two simultaneous mechanical stop principle provides gas lift design that eliminates high differential pressure across bellows limiting it to max 250 PSI. TSMS principle eliminate need for spring loaded telescoping stem in gas lift valves which renders valve much simpler and more reliable to set up and operate.

Our patented single and double Fortress seal™ gas lift valve design completely protects bellow from both high injection and dome pressure eliminating need for dummy valves to test well integrity.

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