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Traditional filtration testing has always been limited by testing static conditions. Yet most of the time, drilling fluid is circulating through the wellbore. The movement of the fluid can have significant effects on the filter cake that are not measured by static filtration tests.

The OFITE Dynamic HTHP Filter Press (#170-95) is designed to correct this oversight. A shaft and paddle extend down into the test cell and circulate the fluid during a test. The speed is adjustable, and the motor can be started and stopped periodically to better simulate drilling conditions.

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Excessive torque and drag is a common problem in the drill string. It can cause a variety of problems that negatively impact well efficiency. The primary cause of often mechanical friction between the wellbore and tubulars. The solution is usually to add lubricants to the drilling fluid.

Prior to choosing any lubricant, it is important to evaluate all available options to see which one lubricates the best and has the best chemical compatibility with the drilling fluid. The most direct test method involves determining the coefficient of friction of the base fluid and comparing it to the coefficient of friction with the lubricant.

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The Ultrasonic Cement Analyzer (UCA) uses the change in velocity of an acoustic signal to determine the compressive strength of a well cement over time. The Static Gel Strength Measurement Device (SGSM) uses a vaned bob submerged in the slurry to determine the static gel strength over time. Together, these two instruments provide a more complete picture of the physical properties of a well cement as the slurry sets.

The Model 4005 Automated Twin Cell UCA with optional SGSM automatically controls the temperature and pressure in each cell independently, bringing a new level of precision and control to your cement lab. With the new touch-screen display, you can now run an entire test in standalone mode, without the need for computer software, although the software is still included with the instrument.

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Most people who do any kind of mud testing are familiar with ceramic filter disks for filtration testing. The ceramic disk simulates real-world formations and provides greater insight into the filtration characteristics of a mud system than standard filter paper. And filter disks have been the standard for Permeability Plugging Tests for years.

Less familiar are the relatively new stainless steel slotted disks. These disks simulate reservoir formations in a different way. Unlike the ceramic filter disk, which are made from natural material, the stainless steel disks have precisely machined slots for the test fluid to flow through. So, you always know the exact pore size of you filter medium.

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We know that space in your lab is valuable. You don’t need bulky equipment taking up more space than necessary. But you also want quality instruments and lots of features. That’s why we developed the Four Unit HTHP Filter Press.

This instrument combines four (4) 175 mL HTHP Filter Presses into a single unit. Each cell has a separate electronic temperature controller and two separate pressure regulators (one for top pressure and one for back pressure). This allows each cell to be heated and pressurized independently.

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