Drilling rig operating at night — HPHT mud cooling by PT TNG and Drill Cool Systems
    Exclusive Partner for Drill Cool Systems | Southeast Asia & Oceania

    Eliminate Downhole Tool Failure. Master Your HPHT Environment

    PT TNG provides exclusive access to Drill Cool Systems' proven GeoCooler and FX Unit technology across Southeast Asia. Reduce NPT, extend tool life, and ensure operational success in your most challenging wells

    Integrated Solutions for
    Demanding Environments

    We provide end-to-end services to ensure your HPHT and geothermal projects succeed, from world-class temperature management to specialized wellhead and equipment services.

    Temperature Control (Drill Cool)

    Deploy Drill Cool Systems' proven GeoCooler (onshore) and FX Units (offshore) to mitigate temperature risks, protect downhole tools, and reduce NPT.

    View Temperature Solutions →

    Machine Shop

    Our specialized machine shop provides precision repair and refurbishment for critical geothermal safety valves, extending their life and reducing replacement costs.

    View Machine Shop Services →

    Proven Results in the
    World's Toughest Wells

    We don't just provide equipment; we deliver measurable results. See how we've helped operators across the globe save millions of dollars and eliminate temperature-related failures.

    GeoCooler mud cooling system deployed on an HPHT well for Medco Enerji in Sumatra, Indonesia
    Indonesia

    HPHT Success in Sumatra (Medco Enerji)

    83°F Temperature Reduction

    On an HPHT well in Sumatra with 352°F bottomhole temperatures, our Geo-Coolers eliminated thermal risks and enabled the project to finish with zero NPT.

    Oman

    6 Years of Proven Performance (Petroleum Development Oman)

    16°C Average Temperature Reduction

    For over six years, our mud coolers have made operations bearable and safe on PDO's HPHT wells, consistently reducing flowline temperatures and chemical costs.

    FX Unit mud cooler operating on Petroleum Development Oman HPHT wells, delivering 16°C average temperature reduction
    Offshore FX Unit mud cooling on the Deep Driller 1 rig for GSPC in the Indian Ocean
    Offshore India

    Success with Limited Resources (GSPC, Indian Ocean)

    41°F Temperature Reduction

    Despite having only half the requested seawater volume, our offshore FX Unit exceeded expectations, protecting personnel and equipment on the Deep Driller 1 rig.

    Frequently Asked Questions

    Everything operators need to know about HPHT mud cooling and our services.

    What is HPHT mud cooling and why is it necessary?

    HPHT (high-pressure, high-temperature) mud cooling removes heat from drilling fluid at the surface before it is pumped back downhole. In HPHT and geothermal wells, bottomhole temperatures can exceed 350°F (177°C), which degrades mud properties, shortens MWD/LWD electronics life, and causes premature elastomer failure. Surface mud cooling with a GeoCooler or FX Unit reduces bottomhole fluid temperature by up to 83°F (46°C), protecting tools and reducing non-productive time (NPT).

    What is the difference between the GeoCooler and the FX Unit?

    The GeoCooler is an onshore evaporative heat exchanger designed for land rigs, with a modular skid-mounted design and low electrical footprint suited to the high ambient humidity of Southeast Asia. The FX Unit is a seawater shell-and-tube heat exchanger engineered for offshore jackups, semi-submersibles, and drillships, with a compact footprint and marine-grade corrosion-resistant alloy construction.

    Which countries does PT TNG serve?

    PT TNG is the exclusive Southeast Asia & Oceania partner for Drill Cool Systems, serving operators in Indonesia, Malaysia, Thailand, Vietnam, Singapore, the Philippines, Australia, New Zealand, Brunei, and Papua New Guinea from our facility in Cikarang, West Java.

    How do I request a thermal assessment for my well?

    Click 'Request a Thermal Assessment' anywhere on the site and submit your well data — including well survey, geothermal gradient, lithology, casing plan, BHA information, mud report, and rheology data. Our engineering team will return a complimentary thermal-hydraulic model quantifying the temperature risks and the impact of our cooling solutions.

    Does PT TNG also repair geothermal safety valves?

    Yes. Our API 6A, API 16A, and ISO 9001 certified machine shop in Cikarang specializes in geothermal wellhead safety valve repair, recertification, hardfacing with Inconel and Stellite cladding, NDT, and high-pressure hydrostatic testing up to 15,000 PSI — extending equipment life and reducing replacement costs.

    Facing an HPHT Challenge?

    Don't let temperature be the weak link in your drilling program. Our experts can run a complimentary thermal-hydraulic model for your well to identify risks and quantify the impact of our solutions.