Патент USA US2128074код для вставки
vAngus,1938. ’ > TEBRYAN WELL FLQWING APPARATUS 'Filed April 2O',- 1956 f . _ 2,128,074l l _ A V v2 Sheets-Sheet l Thomas E.' Bryan. INVEI‘IITOR. BY ad A A ORÑEYS. ì Aug. 23, 1938. ` -|-_ E, BRYAN 2,128,074 WELL FLOWING APPARATUS Filed April 20, 193e ` 2 sheetœsneetz _ -50 n Thomas E. Bryan. INVENTOR. BY ' _ è AÉOR'NEYS. 2,128,074 Patented lê/ug. r23, 1938 UNITED «STATES PATENT OFFICE 2,128,074 WELL FLOWING APPARATUS Thomas E. Bryan, Oklahoma City, Okla. Application April 20, 1936, Serial No. 75,265 6 Claims. (Cl. 1053-232) Thisinvention relates to valves for use in oil y wells or the like, adapted to control the admission of gas or air into a column of fluid within the well so as to aerate the fluid and cause it to rise due to its decreased density. n It has been the practice in recent times to force ' gas or air under pressure into a column of oil or A other fluid within a wellso as to aerate the fluid and ,make it possible for the natural pressure existing at the bottom of the well to force the lightened fluid from the top of the well. The ad mission of this gas or air has been effected in the past by providing the well with an outer casing and an inner tubing, flowing the well through the tubing or through the space between the tubing and the casing, and forcing into the well through the space that is not being used for flowing the well a supply of gas or air under pressure. Valve means have been provided at various intervals in 20 the wall- of the tubing so as to admit the gas or air from the tubing into the casing or vice versa. - These have for the most part been controlled by the relative pressures of the column of fluid stand ing in the well and the pressure of the gas in jected into the well. More recently, certain types of valves have been developed for controlling the admission of' gas or air into a column of fluid, which valves are con trolled by the velocity or by the flow- of fluid in an In this type of valve, the valve is normally opened to'permit gas to pass into the fluid column when the fluid is not in motion. However, as soon as the fluid begins to flow, the velocity of the fluid is utilized to cause a closing 35 of the valve and thus to prevent the admission of 30 upward direction. any more gas or air into the fluid column until vthe flow stops. i It is an object of this invention to provide a I40 valve of the latter type which is of greatly simpli fled construction, as compared with valves of the same general type heretofore used. automatically seat in its proper position at all times that there is no fluid flow. With the above and other objects in view, this invention contemplates a structure including -the various partsand combinations illustrated in the 5 accompanying drawings and set forth in the fol lowing description, it being understood, however, that the accompanying drawings and the follow ing description are by way of illustration and ex ample only and are not tobe taken as in any way 10 limiting the object or scope of this invention. Such limitation is to be only by the prior art and by the terms of the appended claims. ' Referring now more particularly to the draw ings inwhich like numerals indicate correspond 15 ing parts throughout: Fig. 1 is a view in vertical cross section illus trating the application of valves constructed in accordance with this invention to an oil well or 20 the like. Fig. 2 is a horizontal cross section through a section of tubing _having one of these valves in stalled therein, this section being taken along the line 2-2 of Fig. 3. ‘ ' ' Fig. 3 is an enlarged view similar to a portion 25 of Fig. 1 but illustrating one of the valves partly in section. ' Fig. 4 vis a greatly enlarged view illustrating the details ofconstruction and operation: of one of these valves. ‘ ' ' ` 30 Fig. 5 is a view similar to Fig. 2 but illustrat ing a slightly modiñed form of construction and represents a section taken along the line 5-'-5 of Fig. 6. ‘ Fig. 6 is a view similar to Fig.y 3 but illustrating the modification shown in Fig. 5 with the valve in position to admit gas into the fluid column. Fig. 7 is a view similar to Fig. 6 but showing the valve in the position it occupies when the fluid column within the well is in motion. 40 . Referring now more in detail to th'e form illus It is a further object of this invention to pro- _, .trated in Figs. 1 to 4, inclusive, Fig.- l illustrates vide a valve which will be positive in its opera tion and which will be of such construction that it will be impossible for itto become jammed or stuck and continue to admit gas or air into the fluid column after the fluid column has begun to flow. 50 . _ , Another object of this invention is to provide the application ofthe valve in which a casing I is lowered into the well hole through the forma tion Z, and the tubing 3.is then placed within the 4' casing I. At `spaced intervals, usually in the neighborhood of 200 feet or so, there is inserted into this tubing a section having a partition 4 se cured therein in a transverse position by'any suit- _ able means such as by welding 5. This partition C.' C a device which will perform the functions stated . is provided with an opening 6 therethrough hav and will, in addition, serve as a check valve to ing a tapered substantially conical valve seat 'l` prevent downward flow of the column of fluid. One other object of this invention is to provide 65 such a structure with a check valve which will adiacent `the upper face of the partition. ‘ _, At a point just above the partition and spaced laterally with respect to the opening 6 is a hollow 55 2,128,074 2 shaft 8 extending transversely of the tubing and through the tubing walls at its opposite ends. This shaft is secured in position by means such the space 3I through the hollow shaft 8 and into the tubing 3. ' ' ‘ as welding 9. At spaced points on this shaft are provided a pair of thrust collars I0 and Il, be When the pressure in the formation falls to al point'where it is insufficient to raise the column of fluid within the space 30, the- valves I4 or. 26 tween which is positioned a valve sleeve I2 sur will be moved by gravity, or by a. slight downward rounding the shaft 8 and having a laterally ex motion of the fluid into seating engagement with tending arm I3 integral therewith. Secured to the openings formed through the partitions 4 or I9, These valves thus serve as check valves to the underside of the arm I3 in such a position 10 as to seat against the valve seat 1 and close'the opening 6 is a valve I4 having a tapered sub stantially conical'seat portion I5. The shaft 8v which communicates at its oppo site end with the exterior of the tubing 3 is formed' 15 with an opening I6 in its upper side at a point intermediate the thrust collars I0 and II. Formed in the sleeve I2 is a corresponding open ing I1 adapted to register with the opening I6_ when the valve member I4 is seated against the This opening I1 is slightly elongated so as to register at all times regardless of any slight end-wise movement of the sleeve I2. In order to insure against the valve member I4 being swung upwardlyA to such a point that it would rest 25 against the wall of the tubing 3 and not fall back into its seated position, there may be provided 20 seat 1. any suitable stop or other means such as the pin I8 which is shown as being positioned on top of the arm I3. This pin as illustrated will stop 30 the swinging movement of the valve I4 in such a position that the force of gravity will tend to pull the valve back into its closed position. In Figs. 5, 6 and '1 there is illustrated a slightly modified form of construction. In this instance, 35. the partition 4 is replaced with a similar parti ' tion I9 which does not, however, include the sub prevent downward motion of the fluid within the 10 tubing. When the valves I4 orl 26 are in closed position, however, the openings Iii and I1, or I6 and 29, will come into register. It will then be possible for the air or gas under pressure within the space 3i to flow inwardly through the hollow 15 shaft 8 and through the openings I6 and I1 or IB and 29 into the space 30 within the tubing. The gas thus entering the tubing will be dispersed into the fluid standing in the tubing, and will serve to lighten this fluid because of its introduc tion to such an extent that the pressure within the well formation» will be suillcient to lift the fluid column in its lightened condition. The well will then begin to flow again, and’the valve I4 or 26 will be opened to shut off the flow of gas until the well stops flowing. ' It will be noted that in using a plurality of these valves within a well, the static pressure of the column of fluid within the space 30 is less at the position of the uppermost valve and grad ually increases until it is greatest at the position of the lowermost valve. -This being the case, the gas will ilrst be introduced into the tubing -through the uppermost valve, and if this is insuf ?lcient to start the flow of fluid, the gas will be introduced at the next lowest valve, and so on stantially conical valve seat at the upper end of . down to the ,position of the lowest valve. Thus, it is possible to aerate the entire column of fluid its opening 2|. 'I'he opening 2| may be cylindri above the lowest valve when this becomes neces cal` or any other ysuitable shape throughout. In this form also the sleeve I2 and arm I3 have sary to lighten the column sufllciently so that the 40 been replaced b_v an arm 22 which is bifurcated pressure in the well formation will cause it to rise. at its end-opposite the hollow shaft 8 to provide From the foregoing it will be appreciated that there has been provided by this invention an extremely simple form of valve for getting air or spaced ears 23 and 24 between which are posi tioned a lug 25 carried by a substantially hemi 45 sphericai valve member 26. This lug 25 is piv- ‘ otally secured in place by mea-ns of a pin 21 passing through the ears 23 and 24. Because of.'Y its hemìspherical formation, the valve 26 will seat against and close the opening 2|. adjusting 50 itself automatically to any minor irregularities` in the positioning of the opening 2|, or in the gas pressure into a tubing to cause the flow of a column of fluid therein. It will also be appreci ated that the valve thus provided is governed entirely by the flow of the fluid as distinguished from the pressure of the fluid within the tubing space 30. In addition to its function as a valve for admitting or excluding air or gas under swinging of the arm 22. A stop 28 or similar means may be provided so that when the valve is forced upwardiyby a flow of fluid as herein 55 before described. it will not be swung entirely over to a position which will prevent it from pressure to or from the tubing, the invention set forth provides at each position of such a valve a check valve for preventing the downward flow of the column of fluid within the well. 'I'his check valve is in each case positive in its action seating when it is moved downwardly again. The and capable of performing all of the functions ordinarily performed by a check valve. .Having described my invention, I claim: arm 22 is provided with an opening 29 similar to the opening I1 in the sleeve I2 and for the same 60 purpose. - In operation, a plurality of valves are posi tioned in a well in spaced relation as above set forth. The tubing 3 is adapted to provide a passage through its interior 38 for the flow of 65 fluid from the well. The space 3| between the tubing and the casing I is adapted to receive air or gas under pressure. So long as the pressure of the formation which is producing the fluid is sufficient to cause it to flow through the tubing 70 3 to the surface of the ground without anyout side assistance, the valves I4 or 26, as the case may be, will be held open. Underbthese circum stances, the openings I 8 and` I1 in the one form, and I6 and 29 in the other form, will be out of 75 register so that there will be no flow of gas from l. In combination with a well tubing having an opening through a wall thereof to admit gas under pressure thereto, a rotatable sleeve valve for controlling said opening, and means connect ed to said sleeve valve and located in the path of a fluid passing through said tubing for rotating said valve to close said opening upon upward movement of such fluid and for rotating said valve to open the same upon cessation of such upward movement. 2. In combination with a well tubing, a parti tion extending transversely of said tubing and having an opening'therethrough, a hollow shaft extending transversely of said tubing above said partition and having its interior in communica tion with the exterior of said tubing, an arm ’ 2,193,074 3 on upward movement of a fluid in said tubing, said hollow shaft having a lateral port therein, rotatably mounted on said shaft, and valve ` means on said arm adapted to close said opening in said partition and movable away from said opening upon upward motion of a fluid through said tubing, said hollow shaft having a lateral opening therein, and said arm having a part thereon movable to close said lateral opening and means on said arm adapted to close said port upon movement of said valve member from when said valve means is moved away from the upwardly facing shoulder, a hollow shaft above said means having its interior in communication with the exterior of said tubing, an arm rotata 10 bly mounted on said shaft, a valve member piv otally mounted on said arm and having a por tion adapted to cooperate with said shoulder to close said tubing and movable from said shoulderv on upward movement of a fluid in said tubing, 15 said hollow shaft having a lateral port therein, and means on said arm adapted to close said port upon movement of said valve member from said said valve seat. 5. In combination with a well tubing, means therein providing a restriction presenting an n opening in said partition. 3. In combination with a well tubing, a parti tion extending transversely o! said tubing and having an opening therethrough, a hollow. shaft extending transversely of said tubing above said partition and having its interior in communica tion with the exterior of said tubing, a sleeve rotatably mounted on said shaft and having a laterally extending arm thereon, and a valve member on said arm swingable about said hollow shaft ~to close or open the passage through said shoulder. 20 partition, said hollow shaft and sleeve having _ 6. In combination with a well tubing, means 20 openings therein adapted to register when said- therein providing a restriction presenting an valve member is in position to close said passage` upwardly facing shoulder, a hollow shaft above 'through the partition and adapted to move out said means having its interior in communica of register when said valve member is moved to tion with the exterior of said tubing, an arm g open said passage. l 4. In combination with a well tubing, means , rotatably mounted on said shaft. a valve mem ber pivotally mounted on said arm and having a therein providing a substantially conical valve hemispherical portion adapted to cooperate with seat, a hollow shaft above said means having its interior in communication with the exterior of 30 said tubing, an arm rotatably mounted on said shaft, a valve member rigidly mounted on said arm and having a substantially conical'seating said shoulder to close said tubing and movable from said shoulder on upward movement of _a portion adapted to cooperate with said valve seat to close said tubing and movable from said seat iluid in sai tubing, said hollow shaft having 30 a lateral po t therein, and means on said arm adapted to close said port upon movement of said valve member from said shoulder. THQMAS E. BRYAN.