US2631000A

US2631000A - Side ported well casing cementing collar

Info

Publication number: US2631000A
Application number: US730348A
Authority: US
Inventors: Lee Francis Hampton
Original assignee: Baker Oil Tools Inc
Current assignee: Baker Hughes Oilfield Operations LLC
Priority date: 1947-02-24
Filing date: 1947-02-24
Publication date: 1953-03-10
Anticipated expiration: 1970-03-10

Description

March l0, 1953 F. H. LEE

SIDE PORTED WELL CASING CEMENTING COLLAR Filed Feb. 24. 1947 A 5,.. FW

i N w T A Patented Mar. l0, 1953 www; SIDEVPORTAEDWELL CASING CEBIENTING COLLARv Erancis Hampton Lee, San Pedro, Qalif., assignor oy 'Baker'Oil Tools, Inc., Vernon, 'Cal if ,'ztfeor ooreeoe of eoiitoroioi Applieatiion Fehmarn 24, 19g?, ,Serial N0,.- 730353.

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The present invention relates todeVies ,adopted to frxn prt of Aet vvel'l oesi'ngflinen'or conduit string, and having" side` lqortsi seleotively. opened or Vo'losed'to on'trfo'l lete'relflw' of f lixidsA between the iiiiteriefrr `e1`ei ieriei` f tile -eeiiliitii string.

A11 object, of the iiiveiiiieii iS te Provide en imijroved telescopio snide ij'orted ofll'r" adopted t0. De, lliolpf-fi@d in a; @Eising i* 91- Smllili ,illdut., string, whose side een loe both opened and closed by diierential and"telesopic"movernent of the. metioL oompelieiits ef'. theeilief 'reeooriee to rotation. of; too oeeioe oeriiie ifi eiiieile fiireer' tion.

this invention hee, other obieei eiiieeeeete which will beoome eooereiitfre t eeiiiiideieiioii of the embodiment shown in the draw panving and. frmiii Pv iii 2f the @iQ-Sem Spie-Gif cation, This forniy will noorvv be desorib'ed iii detail, but it ie to be iinderotood that "sliehfdetiled Fig- 2 is portie! 1oneitiisiiiieiv Seeiieii of the apparentes., Wit-ii its, Seite in ioif tion.

inthe position 'tovvh A1 1 to refo'lose, the ports.'

Y*As disolo'sd inthe drawings, i A is connected in a casing st'lriiilgby to uperfand lovver /Cilg se o though Speoio roiereiiee iemeiie is. tion to the useA of the, invention as' ort oli tt string, it is'to be iinderstood `t i;v 'l maybe installed'as e; componentpttrt f e A or similar oondoit YSolilg positioned' in V:t Well boI i 'rho p'paratjos. inoidos an 'opporirioor tio 1er member. l adopted fob? @hf lied an i1 pe casing section B, and lov/ver, outer t ber H adapted tol te threodeid tritoA section i C. The 'upper menthe-ifm Within the lower rnernher fly' l'and the Wo y. ereehreeded together by? meeie, of. ,Straight e??? teifrieil threads '1 en the .iiiiier member' .elia eemr'ieoion iiiieriieiiiifeedo '310,11 i114 o. vouter m ber.

VThe inner member loq is vp rovidecl with e plu; relty,of'eireumfeieiiiieiliy SPe'Cediii 1.4,' ood tire "enter moeite? lll tiene,

Fie 3 e, View: Similer te Fie 2. with; tide eerie:

' 'their here eee e Geiler @prefetti Qorrespondng side ports I5 to atllovv.y owof fluid to; ajndioi inner'sieotef It is loooted within an dnnuliis loe'ztvt"een anfiipper Sleeve extension lid o ,fthe outer member' 'I Van'd the inner ,member I0."

This'sieovo'le is secured tofv tirov inner member ItY itsv straight internalthreatclsv 2li engaging comeV ponton exter'riai'throajds 25j on theflatter. It is to he'notedv that theexternal thread 2,15*'extend only 'portvwaylolig the inner 'member lfljrjloeingl` speced'from the ports Ui and ari inner Inenbejr o s ho ider t defining the ond of, the poulpe I'23; and that thefcopnion threads '24"ori'the i'rirevr S'leYQH XIifd, TQI. its. UIJJI" end |511 @Whe tidlf Oiilper Way alone" its legth, in order theft the i'nner'sleeve VIlifrii'ety thread upwrdly long the inner member AI Q and allovv the threads I 21125 toioeconie disengaged before the upper e'nd is sdtstatiauyfless than tho threaded connection 24," 2

too dorer 'ooe of the annales' 2o- Rototion beting/eenv the inner sleeve (6 and the ita or the inner sleevek can @but the shoulder zj otiter "sleeve yportion H it d fY the outer Inernber'is prevented by d.Y suitable spline conne'otion, inthe' form of o, hey 21 Seoiirl 'to the otersleeve vH221; ee. by., ineens of, 'Welding meieiiei 28, Wiiieh 'keyiie reo ved Within a'key--:w'ay Zfn Vthe exteror'of the inner sleeve loin siich fashonas to 'hermit reieiiie 'leiieitlidinei ihoveinerit between the iiriei,

sleeve I5- at .d buter sleeve 'Il'i'ag' Ihe threetded coinneotion i2, I3, between the upper end lower members IQ, lol

5 Between the upper'inember lil and' imiei' Seen. threaded eonrieetioiio's, are io'ieff Sleeve i655 o eitebiy ef tile "Seite hendffor exorr'itl'o; the thr ded 'oonneotionsm'ayb'o right rid, and tir 3 inner sleeve I6 to the upper member I0 may be twice the lead of the lower threads I2, f3 connecting the upper and lower members IB, II together. As a result, rotation of the upper member I0, as to the right, threads it downwardly within the lower. member I I and at the same timeV effects an upward feeding of the sleeve I6 along the upper and lower members I0, Il.

The collar apparatus A is assembled with the inner member I threaded part way into the outer member II, the sleeve I6 occupying a lower position in substantially full threaded connection with the inner member I0, with its lower portion Il disposed across the inner ports I4 and its head end Il in engagement with the seat I9 and seal ring 22 on the outer member II. As noted above, the upper side seal ring 20 is disposed above the ports I4 to prevent fluid :from passing therethrough. The collar, thus assembled, is threadedly attached to the upper and lower casing sections B, C and is run into the well bore as part of the casing string (Fig. l).

After the casing string has been lowered to the desired depth, circulating fluid may be pumped directly into the casing string and through the collar apparatus A for discharge from the casing string at some point below the collar apparatus, as, for example, from a casing shoe (not shown) at the lower end of the casing string. Following conditioning of the well bore by use of the circulating uid, a charge of cement slurry may be pumped into the casing string and through the collar (whose inner ports I4 are closed by the inner sleeve I6) for ejection from the shoe at the lower end of the casing string, and for upward passage around the latter toward the collar.

Following vsetting and hardening of the lower charge of cement slurry, the upper portion of the casing string attached to the collar A may be rotated to the right from the top of the well bore, which also effects rotation of Vthe upper tubular member It and threads it downwardly within the outer tubular member Il, whose rotation is prevented by virtue of its attachment to the lower portion of the casing string, which is held stationary by the cement disposed around its exterior. The splined connection '21, 29 also prevents the sleeve I6 from rotating, resulting4 in threading of the upper member Ill within the sleeve I5. Since both threaded connections I2, I3 and 24, 25 are righthand, rotation of the casing string to the right feeds the inner tubular member I0 downwardly within the outer tubular member II and inner sleeve I6. But, since the lead of the

upper threads

24, 25 is twice the lead of the lower threads I2, I3, the inner sleeve I6 is moved up along the inner member I0 twice the distance the latter moves down within the outer member II; that is, the net result is an upward movement of the sleeve I5 along the outer member II and the inner member I6.

If the casing string is rotated a predetermined number of turns, the sleeve I6 will be elevated to the position shown in Fig. 2, in which it has moved upwardly to uncover the inner ports I4 and also the outer ports I5, but the upper tubular member VI0 has not moved downwardly sufficiently to place the inner ports I4 down below the seat I9 and seal ring 22 of the outer tubular member II. As a result of such relative movement of the parts, the inner and outer ports I4, I5 are in communication with one another and circulating fluids, followed by a chargev of cement slurry, may be pumped directlyinto 4 the casing string for outward passage through the open ports and upward flowing through the annulus around the collar A and upper casing string.

Following discharge of the required amount of cement slurry, rotation of the casing string to the right is continued, which continues to feed the upper tubular member Ill downwardly within the lower tubular member il and the inner sleeve I6 relatively upwardly along the upper tubular member I0. However, the

threads

24, 25 on the inner sleeve and upper tubular member become disengaged to preclude further upward elevational movement of the inner sleeve I6 as a result of rotating the upper tubular member I0. Accordingly, continued downward threading of the upper member It within the lower member II results in the upper member carrying the inner sleeve I6 with it toward the seat I9 on the lower member, until the head end I8 again engages the seat I9 and seal ring 22 (Fig. 3). The inner ports I4 are then reclosed to prevent passage of fluid between the interior and exterior of the apparatus.

As the tubular string is rotated following engagement of the sleeve head end I8 with its companion seat I9, the shoulder 2B on the upper member engages the upper end Ilia of the inner sleeve valve and forces its head end I8 firmly down against the seat I9 to prevent leakage therebetween. The fact of such rm engagement will be transmitted to the operator at the top of the well bore, because of his inability to further rotate the tubing string, since engagement of the shoulder 26 with the upper end Ilia. of the sleeve and engagement of the sleeve head end I8 with its companion seat I9 preclude further downward threaded movement of the upper member I within the lower member I I.

It is to be noted that the inside diameter through the collar apparatus A is no less than the inside diameter through the casing sections B, C, thus providing no restriction to prevent the passage of any devices, such as cementing plugs, completely through the collar. The ports I4 are positively closed initially, and they are positively opened by manipulation of the casing string, which causes the telescopic movement of the upper tubular member I0 within the lower tubular member II and a differential movement of the valve sleeve I6 in an upward direction to open the inner ports I4. A continuation of the rotary movement of the casing string in the same direction again effects a positive closing of the ports I4 in leak-proof fashion.

y Having thus described my invention, what I claim and desire to secure by Letters Patent is:

l. Apparatus of the character described, including rst and second tubular members telescopically arranged with respect to each other, each of said members having means for connecting such member to a casing section, said first member having a side port for allowing fluid flow between the interior and exterior of said first member, a sleeve movable longitudinally along said first member for controlling flow of fluid through said port, means providing a first axial interconnection between said first tubular member and sleeve in order that relative rotation between said first member and sleeve will shift said sleeve along said first member to determine flow of fluid through said port, and means providing a second axial interconnection between said members in order that relative rotation'between said members will shift said second member 5. longitudinally with respect to' said firstm'ember. and its port to determine fiow` of fiuid through. said port.

2. Apparatus of the chracter described, including first and second tubular members telescopically arranged with respect to each other, each of said members having means for connecting such member to a casing section, said first mem. ber having a side port for allowing fluid fiow be,- tween the interior and exterior of said first mern-` ber, a sleeve movable longitudinally along saidl first member for controlling fiow of fluid through said port, means providing a first axial intercon` nection between said first tubular member and sleeve in order that relative rotation between said rst member and sleeve will shift saidi sleeve. along said first member to determine flow of fiuid through said port, means providing a second axial interconnection between said members in order that relative rotation between said members will shiftl said second member longitudinally with respect to said first member and its port to deter-- mine flow of fluid through said port, and means engaging said sleeve to resist its rotation.

3. Apparatus of the character described, including rst and second tubular membersV telescopically arranged with respect to each other, each of said members having means for connecting such member to a casing section, said first member having a side port for allowing fiuid flow between the interior and exterior of said first member, a sleeve movable longitudinally along said first member for controlling fiow of fluid through said port, means providing a first axial interconnection between said first tubular member and sleeve in order that relative rotation between said iirst member and sleeve will shift said sleeve along said first member to determine flow of fluid throughl said port, and means providing a second axial interconnection between said members in order that relative rotation between said members will shift said second member longitudinally with respect to said first member and its port to determine flow of fiuid through said port, said rst and second axial interconnections being difierent from each other to produce movement of said sleeve and secondv member different longitudinal distances with respect. to said first member upon relative rotation between said rst member and said second member and sleeve.

4. Apparatus of the character described, including first and second tubular members telescopically arranged with respect to each other, each of said members having means for connecting such member to a casing section form-- ing part of a casing string, said rst member having a side port, a sleeve movable longitudinally along said first member for controlling flow of fluid through said port, a first threaded connection between said first and second members, a second threaded connection between said first member and sleeve having a different lead from the lead of said first threaded connection, whereby relative rotation between said first member and said second member and sleeve effects relative movement of said sleeve and second member different longitudinal distances along said first member to open and close said port, and means engaging said sleeve to resist its rotation.

5. Apparatus of the character described, including first and second tubular members telescopically arranged with respect to each other, each of said members having means for connectingrslihf member' to a casing section forming part; of a casing.- string, said first member having a side port, asleeve movable longitudinally along said first member for controlling flow of fluid through. said port, a first threaded connection between said first and second members, a secondthreaded connection between said first member andsleevel of the same hand as said first threaded connection but having a different lead from the lead of said rst threaded connection, whereby relative rotation between said first member and said second member and sleeve effects relative movementv of said sleeve and second member different. longitudinal distances along said first member to open and close said port, and means engaging said sleeve to resist its rotation.

6; Apparatus of the character described, including first, and second tubular members telescopicallyarranged with respect to each other, each: of sa-id members. being adapted for connection to a casing section forming part of a casing string, said first member having a side port, a sleeve on said first member for controlling flow of huid through saidl port, means providing a slidable splinedconnection between said sleeve and second member, a first threaded connection between said first and second members, a second threaded connection between said Erst member and sleeve. having a difierent lead from the lead of said first. threaded connection, whereby relativev rotationbetween said first member and said second member and sleeve effects relative movementaofsaid sleeve and second member different longitudinal distances. along said first member to open and close said port.V

7i. Apparatus. of the character described, including first. and second tubular members telescopically arranged with respect to each other, each of' said members being adapted for connection to a casing section forming part of a casing string, said firstmember having a side port, a sleeve on said first member for controlling fiow of fluid through said port, means providing a slid able splined connection between said sleeve and second member, a first threaded connection between said rst and second members, a second threaded connection between said nrst member and sleeve. of the same hand as said rst threaded connect-ion but having a different lead from the lead` of said `first threaded connection, whereby relative rotationbetween said first member and said second member and sleeve effects relative movement of said sleeve and second member different.v longitudinal distances along said first member to open and close said port.

8; Apparatus. of the character described, inbinding-any upper tubular member adapted to be connected to. an upper casing vsection and a lower tubular member adapted to be connected to a lower casing section, said upper and lower members being telescopically arranged with respect to each other and forming part of a casing string, said upper member having a side port, a sleeve on said upper member for controlling flow of iiuid through said port and slidably splined to said lower member, a first threaded connection between said upper member and sleeve, a second threaded connection between said upper and lower members of the same hand as said first threaded connection but having a different lead from the lead of said first threaded connection, whereby rotation of said upper member first edects longitudinal movement of said sleeve along said upper member to port opening position and unthreads said sleeve from said upper member,

a continuation of the rotation of said upper member in the same direction then moving said sleeve into engagement with said lower member to close said port.

9. Apparatus of the character described, including iirst and second tubular members telescopically arranged with respect to each other, said members having a constantly open central longitudinal passage therethrough, each of said members having means for connecting' such members to a casing section, said first member having a side port for allowing iiuid flow between the interior and exterior of said first member, a sleeve movable longitudinally along said first member to control flow of iiuid through said port, means providing a rst axial interconnection between one of said tubular members and sleeve in order that relative rotation between said one member and sleeve will shift said sleeve along said first member to determine ow of fluid through said port, and means providing a second axial interconnection between said members in order that relative rotation between said members will shift said second member longitudinally with respect to said rst member and its port to determine iiow of fluid through said port.

10. Apparatus of the character described, including rst and second tubular members telescopically arranged with respect to each other, each of said members having means for connecting such member to a casing section forming part of a casing string, said rst member having a side port, a sleeve movable longitudinally along said first member for controlling iiow of fluid through said port, a rst threaded connection between said first and second members, a second threaded connection between one of said members and sleeve having a different lead from the lead of said first threaded connection, whereby relative rotation between said first and second members and between said one of said members and sleeve effects relative movement of said a sleeve on said first member for controlling flow of fluid through said port, means for resisting rotation of said sleeve, a first threaded connection between said first and second members, a second threaded connection between said first member and sleeve having a different lead from the lead of said firstV threaded connection, in order that relative rotation between said first member and said second member and sleeve effects relative movement of said sleeve and second member different longitudinal distances along said first member to open and close said port.

12. Apparatus of the character described, including first and second tubular members telescopically arranged with respect to each other, each of said members being adapted for connection to a casing section forming part of a casing string, said first member having a side port, a sleeve movable longitudinally along the exterior of said first member for controlling flow of fluid through said port, a first threaded connection between said first and second members, a second threaded connection between said iirst member and sleeve having a different lead from the lead of said first threaded connection, whereby relative rotation between said first member and said second member and sleeve effects relative movement of said sleeve and second member different longitudinal distances along said first member to open and close said port.

13. Apparatus of the character described, including first and second tubular members telesoopically arranged with respect to each other, each of said members being adapted for connection to a casing section forming part of a casing string, said first member having a side port, a sleeve on said first member for controlling flow of fluid through said port, means for resisting rotation of said sleeve, a first threaded connection between said first and second members, a second threaded connection between said rst member and sleeve of the same hand as said first threaded connection but having a different lead from the lead of said first threaded connection, whereby relative rotation between said first member and said second member and sleeve effects relative movement of said sleeve and second member different longitudinal distances along said pivot member to open and close said port.

FRANCIS HAMPTON LEE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Italy of 1930