Field testing of pressureless sintered silicon carbide for choke trim

Journal Article · Sat Jan 01 04:00:00 EST 1983 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:5611362

Regitz, A; Keene, K

Until recently, tungsten carbide has been the most erosion resistant material in use for choke stem tips and seats. An increase in the number of wells that produce sand has led to a need for an improved material that will maintain its integrity significantly longer, when exposed to high velocity sand. During the last two years, FMC Wellhead Equipment Division's R and D Engineering Department has been conducting field tests of pressureless sintered silicon carbide (herein called SiC) used as trim for chokes. The test results have been very encouraging. SiC appears to have wear resistance two to three times better than tungsten carbide. The main problems encountered have been the brittleness of the material and the difficulty in attaching a SiC tip to the steel choke stem.

• Research Organization: FMC Corporation, Wellhead Equipment Division, Houston, Texas
• OSTI ID: 5611362
• Journal Information: Am. Soc. Mech. Eng., (Pap.); (United States), Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Vol. 83-PET-25; ISSN ASMSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
420500 -- Engineering-- Materials Testing
BRITTLENESS
CARBIDES
CARBON COMPOUNDS
DRILL BITS
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
MATERIALS
MECHANICAL PROPERTIES
SAND
SILICON CARBIDES
SILICON COMPOUNDS
SINTERED MATERIALS
TESTING
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS
WEAR
WEAR RESISTANCE
WELL DRILLING
WELLHEADS