What are the types of wellhead?
Choke Performance Two types of wellhead chokes are used. They are (1) positive (fixed) chokes and (2) adjustable chokes. Placing a choke at the wellhead means fixing the wellhead pressure and, thus, the flowing bottom-hole pressure and production rate.
How many types of wellheads are there?
Oil and gas well wellhead equipment can be divided into three types: flowing well wellhead equipment, pumping well wellhead equipment and gas well wellhead equipment.
What is wellhead equipment?
The wellhead equipment is the component at the surface of an oil or gas well, which offers the pressure-containing and structural interface for the drilling equipment. It provides pressure seals and suspension point for the casing strings. The wellheads are welded onto the string of casing, during drilling operations.
What is wellhead Control Panel?
Performing a safety critical function on manned and unmanned platforms, our Wellhead Control Panels (WHCPs) are designed for monitoring, controlling and shutdown of various subsurface and surface valves.
What is wellhead choke used for?
Wellhead chokes are used to limit production rates for regulations, protect surface equipment from slugging, avoid sand problems due to high drawdown, and control flow rate to avoid water or gas coning.
How much does a wellhead cost?
The average wellhead price of crude oil increased $3.58 to $65.23 in September 2021 from August 2021. The monthly average price was $31.82 higher than the average price of $33.41 in the same month last year.
What is SSV valve?
Surface safety valve (SSV) is a hydraulically actuated fail-safe gate valvefor producing or testing oil and gas wells with high flow rates, high pressures, or the presence of H2S.
What is the wellhead pressure?
Wellhead pressure – pressure at the top of the well, i.e., at its wellhead. It is measured by pressure gauges of the wellhead fittings. Numerically it equals the difference between reservoir pressure and hydrostatic pressure of the liquid column from wellhead to reservoir.
Where is wellwellhead systems located?
Wellhead Systems, Inc., is located in beautiful Hill City, Kansas. We specialize in providing high quality independent wellhead equipment per API 11-IW and API 5B Sizes from 2-3/8″ to 13-3/8″.
What is the difference between wellwellhead and offshore wellhead?
Wellhead systems differ by well location: Offshore wellhead systems are normally more sophisticated in design to handle ocean currents, bending loads, and other loads induced by the environment during the life of the well. Some of these loads are cyclic in nature, so fatigue-resistant designs are desirable, particularly for deepwater developments.
What kind of pressure does a wellhead have to be?
Designed to reduce installation time and enhance safety, they use trims and proprietary sealing technologies for expected well conditions. Cameron was the first to engineer surface wellhead systems rated to 30,000 psi and 450 degF and qualified per API 6A Appendix F.
What are the advantages of a single stage wellhead system?
Withstand pressures up to 10,000 psi in a configurable solution. Decrease potential NPT and reduce trips with compact wellhead systems. Run the casing head through a diverter with a single-stage wellhead system. Achieve configurability, robustness, reliability, extensive service life, and a reduced footprint.