What's the difference between well and wellhead?

Well


Definition:

  • (v. i.) An issue of water from the earth; a spring; a fountain.
  • (v. i.) A pit or hole sunk into the earth to such a depth as to reach a supply of water, generally of a cylindrical form, and often walled with stone or bricks to prevent the earth from caving in.
  • (v. i.) A shaft made in the earth to obtain oil or brine.
  • (v. i.) Fig.: A source of supply; fountain; wellspring.
  • (v. i.) An inclosure in the middle of a vessel's hold, around the pumps, from the bottom to the lower deck, to preserve the pumps from damage and facilitate their inspection.
  • (v. i.) A compartment in the middle of the hold of a fishing vessel, made tight at the sides, but having holes perforated in the bottom to let in water for the preservation of fish alive while they are transported to market.
  • (v. i.) A vertical passage in the stern into which an auxiliary screw propeller may be drawn up out of water.
  • (v. i.) A depressed space in the after part of the deck; -- often called the cockpit.
  • (v. i.) A hole or excavation in the earth, in mining, from which run branches or galleries.
  • (v. i.) An opening through the floors of a building, as for a staircase or an elevator; a wellhole.
  • (v. i.) The lower part of a furnace, into which the metal falls.
  • (v. i.) To issue forth, as water from the earth; to flow; to spring.
  • (v. t.) To pour forth, as from a well.
  • (v. t.) In a good or proper manner; justly; rightly; not ill or wickedly.
  • (v. t.) Suitably to one's condition, to the occasion, or to a proposed end or use; suitably; abundantly; fully; adequately; thoroughly.
  • (v. t.) Fully or about; -- used with numbers.
  • (v. t.) In such manner as is desirable; so as one could wish; satisfactorily; favorably; advantageously; conveniently.
  • (v. t.) Considerably; not a little; far.
  • (a.) Good in condition or circumstances; desirable, either in a natural or moral sense; fortunate; convenient; advantageous; happy; as, it is well for the country that the crops did not fail; it is well that the mistake was discovered.
  • (a.) Being in health; sound in body; not ailing, diseased, or sick; healthy; as, a well man; the patient is perfectly well.
  • (a.) Being in favor; favored; fortunate.
  • (a.) Safe; as, a chip warranted well at a certain day and place.

Example Sentences:

  • (1) Furthermore, it had early diagnostic (seven days) as well as prognostic value, as revealed by response to therapy and decrease in COA titer.
  • (2) These results indicated that the PG determination was the most accurate predictor of fetal lung well-being prior to birth among the clinical tests so far reported.
  • (3) This paper discusses the typical echocardiographic patterns of a variety of important conditions concerning the mitral valve, the left ventricle, the interatrial and interventricular septum as well as the influence of respiration on the performance of echocardiograms.
  • (4) The authors have presented in two previous articles the graphic solutions resembling Tscherning ellipses, for spherical as well as for aspherical ophthalmic lenses free of astigmatism or power error.
  • (5) This bone could not be degraded by human monocytes in vitro as well as control bone (only 54% of control; P less than 0.003).
  • (6) It is concluded that amlodipine reduces myocardial ischemic injury by mechanism(s) that may involve a reduction in myocardial oxygen demand as well as by positively influencing transmembrane Ca2+ fluxes during ischemia and reperfusion.
  • (7) Chapter one Announcement of the Islamic Caliphate The announcement of the renewal of the caliphate in Iraq in the year 1427AH [2006] was the arbiter between division and separation as well as the glory of the Muslims.
  • (8) Participants (n=165) entering a week-long outpatient education program completed a protocol measuring self-care patterns, glycosylated hemoglobin levels, and emotional well-being.
  • (9) In some cervical nodes, a few follicles, lymphocyte clusters, and a well-developed plasmocyte population were also present.
  • (10) The data from this experience as well as others previously reported can yield prognostic indicators of survival in cases of accidental hypothermia.
  • (11) Although Jeggo's Chinese hamster ovary cells were more responsive to mAMSA, novo still abrogated mAMSA toxicity in the mutant cells as well as in the parental Chinese hamster ovary cells 2,4-Dinitrophenol acted similarly to novo with respect to mAMSA killing, but neither compound reduced the ATP content of V79 cells.
  • (12) The extent of the infectious process was limited, however, because the life span of the cultures was not significantly shortened, the yields of infectious virus per immunofluorescent cell were at all times low, and most infected cells contained only a few well-delineated small masses of antigen, suggestive of an abortive infection.
  • (13) The role of whole Mycobacteria, mycobacterial cell walls and waxes D as immunostimulants was well established many years ago.
  • (14) We have investigated a physiological role of endogenous insulin on exocrine pancreatic secretion stimulated by a liquid meal as well as exogenous secretin and cholecystokinin octapeptide (CCK-8) in conscious rats.
  • (15) His son, Karim Makarius, opened the gallery to display some of the legacy bequeathed to him by his father in 2009, as well as the work of other Argentine photographers and artists – currently images by contemporary photographer Facundo de Zuviria are also on show.
  • (16) This treatment is usually well tolerated but not devoid of systemic effects.
  • (17) To examine the central nervous system regulation of duodenal bicarbonate secretion, an animal model was developed that allowed cerebroventricular and intravenous injections as well as collection of duodenal perfusates in awake, freely moving rats.
  • (18) At the time, with a regular supply of British immigrants arriving in large numbers in Australia, Biggs was able to blend in well as "Terry Cook", a carpenter, so well in fact that his wife, Charmian, was able to join him with his three sons.
  • (19) Content of cyclic nucleoside monophosphates was decreased in all the eye tissues in experimental toxico-allergic uveitis as well as penetration of cAMP into the fluid of anterior chamber of the eye.
  • (20) These data indicate that RNA faithfully transfers "suppressive" as well as "positive" types of immune responses that have been reported previously for lymphocytes obtained directly from tumour-bearing and tumour-immune animals.

Wellhead


Definition:

  • (n.) A source, spring, or fountain.

Example Sentences:

  • (1) Barack Obama's investigation hears of 'friction' 13 July BP successfully installs a new, more tightly fitting containment cap on the ruptured wellhead.
  • (2) The blowout preventer, which failed to stem the flow of oil when the wellhead erupted and is widely used throughout the industry, is likely to be declared not fit for purpose, he added.
  • (3) Some experts who have studied video footage of the oil spewing from the wellhead have estimated the rate of spillage at up to 13m litres a day – 14 times greater than BP's figure.
  • (4) A nation’s eyes rolled when Ian Cumming, another of this season’s finalists, declared that he was baking with eggs laid by his own guinea fowl: of course he fashioned his own device to cut lady fingers to precisely 9cm long; of course it was he who constructed a wellhead from tempered chocolate with a bucket that drew a lemon-flavoured, white chocolate drink from its depths.
  • (5) Wellheads were being destroyed, because they could not maintain pressure.
  • (6) From the wellhead to the swing set was 536ft.” Facebook Twitter Pinterest A billboard urges voters to back the ban.
  • (7) "It can take only three weeks to drill a well in the US and then everything is taken off site, leaving a wellhead as small as a desktop.
  • (8) Admiral Thad Allen, who is in charge of the US government's response, has written to BP demanding answers to "undetermined anomalies at the wellhead".
  • (9) The majority of the total, according to the company, was lost through two incidents – one in which thieves damaged a wellhead at its Odidi field, and another where militants bombed the Trans Escravos pipeline.
  • (10) A tall hedge can hide a wellhead, according to Francis Egan, chief executive of Cuadrilla, who calculates hundreds of wells will be required.

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