US1654463A - Casing head - Google Patents
Casing head Download PDFInfo
- Publication number
- US1654463A US1654463A US165127A US16512727A US1654463A US 1654463 A US1654463 A US 1654463A US 165127 A US165127 A US 165127A US 16512727 A US16512727 A US 16512727A US 1654463 A US1654463 A US 1654463A
- Authority
- US
- United States
- Prior art keywords
- slips
- casing
- faces
- packing
- tapered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012856 packing Methods 0.000 description 18
- 238000004873 anchoring Methods 0.000 description 15
- 230000002093 peripheral effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0422—Casing heads; Suspending casings or tubings in well heads a suspended tubing or casing being gripped by a slip or an internally serrated member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/49—Member deformed in situ
- Y10T403/4958—Separate deforming means remains with joint assembly
Definitions
- vThe invention relates to a novel form of v casing head for oil vwells and the like,pro' vided with aset of slips to land or support an inside string ofcasing or tubing and a second set of slips to anchor the inside string.
- the packing may be applied, removed or ady justed without effecting the relation of the supporting and landing slips'and the inner string of casing or tubing, the particular coordination of the casing head and the slips preventing the accidental movement of the inner string of casing or tubing in either direction with respect to the casing to which the head is applied'.
- U f Fig. 1 is a sectional elevation of the head as applied to the outery casing and the inner 'casing or tubing.
- Fig. 2 is a vertical sectional elevation of the supporting or landing slips.
- Fig. 8 is a plan view thereof.
- Fig. 4 is a sectional elevation of the anchoring slips.
- Fig. 5 is a plan view thereof.
- 1 indicates the main or body portion of thetubular head, the lower end of which is provided with internal screw threads 2 to engage the threadedend of the outer casing C.
- the interior of the tubular body portion l is' provided with an intermediate downwardly tapered bore 5 which constitutes a seat for the landing or supporting slips and above the tapered bore is a cylindrical bore section 3 having an annular shoulder 4 at its bottom, which serves as a seat for the lower packing ring.
- thel supporting orl anchoring slips 10 Removably engaging the downwardly tapering bore section 5 are thel supporting orl anchoring slips 10, which are arcuate in cross section and have their inner faces provided with upwardly inclined teeth or serrations 11 and their outer peripheral faces beveled or inclined' to engage the inclined wall of the tapered bore section 5.
- the serrated inner faces of the slips surround and engage the inner string. of casing or tubing T and .prevent any downward movement of the latter.
- a suitable acking comprising overlapping compressi le gaskets 15 heldl between lower and upper split packing rings 16, 16, the ⁇ former of which restsupon the 'annular shoulder 4.
- anchoring slips v ⁇ 18 Engaging the upper end of the cylindrical portion ofthe bore and the packing therein are anchoring slips v ⁇ 18, which are arcuate in cross section and have their interior surfaces provided with a series of annular downwardly extending teeth or serrations 19 and their outer peripheral faces provided with an upward taper, so that the slips, when assembled, constitute a vertical split frustum of a cone, which surrounds the inner string of casing or tubing T, as indicated in Fig. 1, with the lower end of the slip sections engaging the packing.
- Fig. 1 The various parts are assembled and adjusted as illustrated in Fig. 1; that is to say, the casi-ng head 1 is engaged with the upper end of the outer casing C and the p landing or supporting slips 10 are driven home in the tapered section 5 of the bore, so that the teeth or serrations on the inner faces casing or tubing T and rigidly support the latter against downward movement.
- the packing is then applied in the upper cylindrical bore section 3, as shown, and the upper or anchoring slips placed in position above the packing, after which the anchor ring 20 is threaded over the bolts 23. As the nuts 24 are set up on the bolts 23, the anchoring slipsi are.
- the packing 15 is sufliciently compressed to produce a lfluid-tight joint between the casing head and the inner string of casing or tubing. This precaution is necessary in order to prevent the anchoring slips from gripping the inner string before the packing is suiciently compressed to effect a tight joint.
- the new casing head not only serves to support the weight of the anchored string of casing or tubing within the outer casing and prevents the well pressure from raising the inner string, but inasmuch as of the slips bite into the surface of the inner j and upwardly tapered peripheral outer the packing is held-in position and properly compressed by the upper anchoring slips, it will be apparent that both the packing and the upper anchoring slips may be applied and adjusted Without moving or ,handling the inner string of casing or tubing, as the latter is supported in the casing head 1 by means of the lower or landing slips 10;
- a casing head comprising a tubular member adapted to be secured to the well casing and provided with a downwardly tapering bore, arcuate slips having serrated inner faces and tapered outer peripheral U faces engaging the tapered bore, packing in ,thepbore above the'slips, arcuate anchoring slips above the packingl havingserrated faces faces, an anchor ring having a; tapered opening vengaging the peripheral. faces of said anchoring slips, and means for adjustably connecting said ring to the upper end of the tubular member.
- a casing-head comprising a tubular member adapted to be secured to the well casing and provided with a downwardly tapering bore, arcuate slips havingserrated yinner faces and tapered outer peripheral faces engaging the tapered bore, packing inl the bore above the slips, arcuate anchoring slips above the packing vhaving serrated faces and ,upwardly ⁇ tapered peripheral Y outer faces, an anchor ring having a tapered opening engaging the peripheral faces of Y' said anchoring slips, and bolts engaging the.
- a casing head comprising a tubular member adapted to be 'secured to the up er end of a well casing and having a cylin rical upper bore section and a downwardly taperlng lower bore section, arcuate landing slips having serrated inner faces and' tapered outerperipheral faces engaging the tapered bore, packing in the cylindrical bore section, arcuate anchoring slips above the .packing having serrated inner 'faces and up- Wardly tapered peripheral outer faces, an
- anchor ring 4 having a tapered'opening engaging the peripheral faces of said anchor- 111g slips, and means for adjustably connecting said ring to the upper end of the tubular member.
- a casing heady comprising a tubular member 'adapted to be secured to the upper end of a well casing andhaving ⁇ a cylindrical upper bore'section and a downwardly tapering lower bore section, arcuate landing slips having serrated inner facesl and tapered outer peripheral faces engaging the tapered bore, packing in the cylindrical bore section, arcuate anchoringslips above ⁇ the packing having serratedV inner faces and upwardly tapered peripheral outer faces, an anchor ring having a tapered opening engaging the/peripheral faces of' said anchoring slips, and bolts engaging the upper end of the tubular member for adjusting the anchor ring.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Description
G., H. JAQUE@ CAS I NG HEAD Filed Feb. l. 19271 Ii w,
tn-WMM T viii/Ila Patented Der. 27, 1927. .I y
UNITED-STATES GEORGE n. JAaUEs, or casrnn, WYOMING.'
y CASING HEAD.
Application led February 1, 1927. Serial No. 165,127.
vThe invention relates to a novel form of v casing head for oil vwells and the like,pro' vided with aset of slips to land or support an inside string ofcasing or tubing and a second set of slips to anchor the inside string.
the packing may be applied, removed or ady justed without effecting the relation of the supporting and landing slips'and the inner string of casing or tubing, the particular coordination of the casing head and the slips preventing the accidental movement of the inner string of casing or tubing in either direction with respect to the casing to which the head is applied'. The invention is illustrated in the accompanying drawings, in which U f Fig. 1 is a sectional elevation of the head as applied to the outery casing and the inner 'casing or tubing.
Fig. 2 is a vertical sectional elevation of the supporting or landing slips.
l Fig. 8 is a plan view thereof.
Fig. 4 is a sectional elevation of the anchoring slips.
Fig. 5 is a plan view thereof.
Referring to the drawings, 1 indicates the main or body portion of thetubular head, the lower end of which is provided with internal screw threads 2 to engage the threadedend of the outer casing C. The interior of the tubular body portion l is' provided with an intermediate downwardly tapered bore 5 which constitutes a seat for the landing or supporting slips and above the tapered bore is a cylindrical bore section 3 having an annular shoulder 4 at its bottom, which serves as a seat for the lower packing ring.
Removably engaging the downwardly tapering bore section 5 are thel supporting orl anchoring slips 10, which are arcuate in cross section and have their inner faces provided with upwardly inclined teeth or serrations 11 and their outer peripheral faces beveled or inclined' to engage the inclined wall of the tapered bore section 5. As indicated in Fig. 1, the serrated inner faces of the slips surround and engage the inner string. of casing or tubing T and .prevent any downward movement of the latter.
Mounted in the cylindrical upper bore section 3 is a suitable acking comprising overlapping compressi le gaskets 15 heldl between lower and upper split packing rings 16, 16, the` former of which restsupon the 'annular shoulder 4.
Engaging the upper end of the cylindrical portion ofthe bore and the packing therein are anchoring slips v`18, which are arcuate in cross section and have their interior surfaces provided with a series of annular downwardly extending teeth or serrations 19 and their outer peripheral faces provided with an upward taper, so that the slips, when assembled, constitute a vertical split frustum of a cone, which surrounds the inner string of casing or tubing T, as indicated in Fig. 1, with the lower end of the slip sections engaging the packing.
Secured in the upper end of the tubular member lis a series of studs or bolts-23 having adjustin nuts 24 on their outer ends, said bolts passing through. holes 22 in an anchoring ring 20, the inner periphery of which ring is provided withV a downwardly flaring or tapering surface 21 cooperating with the upwardly tapering surfaces of the slips 18.
The various parts are assembled and adjusted as illustrated in Fig. 1; that is to say, the casi-ng head 1 is engaged with the upper end of the outer casing C and the p landing or supporting slips 10 are driven home in the tapered section 5 of the bore, so that the teeth or serrations on the inner faces casing or tubing T and rigidly support the latter against downward movement. The packing is then applied in the upper cylindrical bore section 3, as shown, and the upper or anchoring slips placed in position above the packing, after which the anchor ring 20 is threaded over the bolts 23. As the nuts 24 are set up on the bolts 23, the anchoring slipsi are. tapped down 'evenly with a hammer unt-il the packing 15 is sufliciently compressed to produce a lfluid-tight joint between the casing head and the inner string of casing or tubing. This precaution is necessary in order to prevent the anchoring slips from gripping the inner string before the packing is suiciently compressed to effect a tight joint.
As thus constructed and applied, it will be seen that the new casing head not only serves to support the weight of the anchored string of casing or tubing within the outer casing and prevents the well pressure from raising the inner string, but inasmuch as of the slips bite into the surface of the inner j and upwardly tapered peripheral outer the packing is held-in position and properly compressed by the upper anchoring slips, it will be apparent that both the packing and the upper anchoring slips may be applied and adjusted Without moving or ,handling the inner string of casing or tubing, as the latter is supported in the casing head 1 by means of the lower or landing slips 10;
-reapplied after the inner casing or tubing has been properly landed or positioned. f
What I claim is; 1. A casing head comprising a tubular member adapted to be secured to the well casing and provided with a downwardly tapering bore, arcuate slips having serrated inner faces and tapered outer peripheral U faces engaging the tapered bore, packing in ,thepbore above the'slips, arcuate anchoring slips above the packingl havingserrated faces faces, an anchor ring having a; tapered opening vengaging the peripheral. faces of said anchoring slips, and means for adjustably connecting said ring to the upper end of the tubular member.
2. A casing-head comprising a tubular member adapted to be secured to the well casing and provided with a downwardly tapering bore, arcuate slips havingserrated yinner faces and tapered outer peripheral faces engaging the tapered bore, packing inl the bore above the slips, arcuate anchoring slips above the packing vhaving serrated faces and ,upwardly` tapered peripheral Y outer faces, an anchor ring having a tapered opening engaging the peripheral faces of Y' said anchoring slips, and bolts engaging the.
upper end of the tubular member for adl justing the anchor ring.
3. A casing head comprising a tubular member adapted to be 'secured to the up er end of a well casing and having a cylin rical upper bore section and a downwardly taperlng lower bore section, arcuate landing slips having serrated inner faces and' tapered outerperipheral faces engaging the tapered bore, packing in the cylindrical bore section, arcuate anchoring slips above the .packing having serrated inner 'faces and up- Wardly tapered peripheral outer faces, an
anchor ring 4having a tapered'opening engaging the peripheral faces of said anchor- 111g slips, and means for adjustably connecting said ring to the upper end of the tubular member.
4. A casing heady comprising a tubular member 'adapted to be secured to the upper end of a well casing andhaving^a cylindrical upper bore'section and a downwardly tapering lower bore section, arcuate landing slips having serrated inner facesl and tapered outer peripheral faces engaging the tapered bore, packing in the cylindrical bore section, arcuate anchoringslips above `the packing having serratedV inner faces and upwardly tapered peripheral outer faces, an anchor ring having a tapered opening engaging the/peripheral faces of' said anchoring slips, and bolts engaging the upper end of the tubular member for adjusting the anchor ring.
In testimony whereof I affix my signature.
j GEORGE I-I. JAQUES
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US165127A US1654463A (en) | 1927-02-01 | 1927-02-01 | Casing head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US165127A US1654463A (en) | 1927-02-01 | 1927-02-01 | Casing head |
Publications (1)
Publication Number | Publication Date |
---|---|
US1654463A true US1654463A (en) | 1927-12-27 |
Family
ID=22597536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US165127A Expired - Lifetime US1654463A (en) | 1927-02-01 | 1927-02-01 | Casing head |
Country Status (1)
Country | Link |
---|---|
US (1) | US1654463A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2922130A (en) * | 1958-03-14 | 1960-01-19 | Leslie R Matheson | Antenna feed adjusting means |
US3179448A (en) * | 1962-03-13 | 1965-04-20 | Cameron Iron Works Inc | Wellhead apparatus |
US4223925A (en) * | 1978-11-01 | 1980-09-23 | Reneau Bobby J | Hot tap machine |
US4239266A (en) * | 1978-01-16 | 1980-12-16 | Bill B. Berryhill | Pipe connector apparatus |
US4451047A (en) * | 1981-07-31 | 1984-05-29 | Smith International, Inc. | Seal |
US5135266A (en) * | 1990-10-30 | 1992-08-04 | Abb Vetco Gray Inc. | Casing slips and seal member |
US5879030A (en) * | 1996-09-04 | 1999-03-09 | Wyman-Gordon Company | Flow line coupling |
US5899507A (en) * | 1997-02-14 | 1999-05-04 | The Pipeline Development Company | Riser fitting |
-
1927
- 1927-02-01 US US165127A patent/US1654463A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2922130A (en) * | 1958-03-14 | 1960-01-19 | Leslie R Matheson | Antenna feed adjusting means |
US3179448A (en) * | 1962-03-13 | 1965-04-20 | Cameron Iron Works Inc | Wellhead apparatus |
US4239266A (en) * | 1978-01-16 | 1980-12-16 | Bill B. Berryhill | Pipe connector apparatus |
US4223925A (en) * | 1978-11-01 | 1980-09-23 | Reneau Bobby J | Hot tap machine |
US4451047A (en) * | 1981-07-31 | 1984-05-29 | Smith International, Inc. | Seal |
US5135266A (en) * | 1990-10-30 | 1992-08-04 | Abb Vetco Gray Inc. | Casing slips and seal member |
US5879030A (en) * | 1996-09-04 | 1999-03-09 | Wyman-Gordon Company | Flow line coupling |
US5899507A (en) * | 1997-02-14 | 1999-05-04 | The Pipeline Development Company | Riser fitting |
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