TK Solver™ the Tool of Choice
For Award-Winning Petroleum Engineer

Dr. Najam Beg’s work on jet pump and compact separation technology for the oil and gas industry has won him prestigious awards—from the Royal Society in the UK, from Petroleum Engineer International, and recently the Best Production Solution award from World Oil magazine. It has taken his company, CALTEC, Ltd., ( from a startup to a £5 million-a-year company.
And it was done, he’ll tell you, with TK Solver, from Universal Technical Systems, Inc.
“This highly complex system was designed from the models we developed in TK Solver,” says Dr. Beg, a petroleum engineer, says of the Wellcom multiphase hydrocarbon production boosting system. “We still use these models on a daily basis.”
CALTEC, based in Cranfield, Bedfordshire, UK, specializes in the design, development, and supply of equipment and systems for enhanced oil and gas recovery (EOR). Its product line includes custom designed jet pump boosters for oil and gas production; compact in-line high pressure rating separators for solid-liquid, gas-liquid, and liquid-liquid applications. It also covers complete multiphase commingling systems to employ energy from high-pressure wells (source) to boost the production of low-pressure wells.
CALTEC designed and fabricated the world’s largest jet pump for BP, to boost gas production from two satellite fields of BP’s Inde platform in the North Sea. In its media nickname and in CALTEC’s own description of it, the device is a “monster”: nearly seven meters long, with two-foot-diameter input and output lines.
The “Monster”
The Wellcom system solves a nagging problem that occurs in oil and gas production on the same platform. Both high and low-pressure valves must be used, and when they work together, back pressure from the high-pressure valve can interfere with the low-pressure valve. The conventional corrective is to choke the high-pressure valve. This equalizes the low-pressure valve, but it wastes the energy of the high-pressure valve.
The Wellcom device uses energy from the high-pressure valve to boost the performance of the low-pressure valve. There is extra production from the low-pressure valve, without wasting the energy from the high-pressure valve. The system is self-adjusting, has no moving parts and, because there is no pumping or compressing, uses no electricity. It eliminates the need for compressors and their high capital, operating, and maintenance costs.
Wellcom system users have recovered their capital cost in as little as 2 to 16 weeks. Since being installed in September 2001, the “monster” has boosted production from two Inde satellite platforms by up to 25%.
The work in TK Solver touched all aspects of the Wellcom system’s core problem—pressure boosting, flow in the pipe, separation and metering.
In designing the “monster” jet pump, “there were three purposes for the TK Solver model: to design the unit, to get the critical internal dimension, and to verify results under different conditions,” Dr. Beg says.
“I am very pleased with the functionalities that TK Solver software offers which have met all our expectations over the years. We tried Excel and went back to TK Solver,” he says. “It was a management decision. The TK solution was confirmed in the lab and in the field.” TK Solver’s ability to automatically link with Excel means he and his colleagues can exploit the functionalities of both.
Dr Beg adds, “Our main issue is not programming, it’s assessing a number of solutions in a short space of time within a high intermix of units conventions. And finding solutions quickly is something that TK Solver does extremely well.”