Equipment/Software/Literature

Jan. 18, 2010

Drillbit offers stabilization, new cutter design

The new Hughes Christensen Quantec Force line of polycrystalline diamond compact drillbits features newly engineered stabilization technology and next-generation cutters.

Bits promise higher penetration rates, increased footage, and reduced costs in a range of drilling environments.

The company says its drillbit has demonstrated stability by using updated design practices via a proprietary bit dynamics model to optimize the force distribution experienced while the bit is in service. This improvement has helped reduce the occurrence of destructive bit whirl, keeping the drilling process efficient and the cutting structure intact for faster and longer runs, the firm notes.

The PDC bit line also uses newly engineered and wear-resistant cutters. There are a variety of cutter choices, depending on the drilling application. One cutter type is specifically geared for abrasive formations, while another is engineered for drilling environments where both abrasion and impact-resistance are required. Bits are designed for all applications, including hard, abrasive formations as well as interbedded shales and sands. The cutters on the bit can be changed out depending on the formation requirements.

Source: Baker Hughes Inc., 2929 Allen Parkway, Suite 2100, Houston, TX 77019.

New magnet tool removes as much as 200 lb of debris

The new MAGNOSTAR high-capacity magnet tool provides operators with a single piece tool specifically designed for high torque strings but that can also be used in conventional work strings.

The MAGNOSTAR magnet is a single piece mandrel with no internal connections. With its high strength, rare earth magnets, rated to 350° F., it can remove up to 200 lb of ferrous material.

The tool provides magnetic surface area for high volume ferrous debris extraction when circulation is not enough for wellbore cleanup. The tool is run in the well on the work string with other wellbore cleanup tools for a variety of applications, including: displacements, postperforating, prefracturing, multizone completions, milling, burning, fishing, and smart completions.

It can be run whenever there is a potential for ferrous debris in the wellbore.

To address one user's needs in Norway, the 7 in. tool was run-in-hole with several other of this company's tools in the cleanup string. The tool collected 13.2 lb of ferrous metal debris, most of which was small in size although large slivers as long as 6 in. were recovered.

It comes in common casing/lining sizes and weights—from 133⁄8 in to 7 in. and has a casing compatible facing material to minimize casing wear.

Source: M-I Swaco Wellbore Productivity, Box 42842, Houston, TX 77242-2842.

More Oil & Gas Journal Current Issue Articles
More Oil & Gas Journal Archives Issue Articles
View Oil and Gas Articles on PennEnergy.com