US3804168A - Wire line clamp - Google Patents
Wire line clamp Download PDFInfo
- Publication number
- US3804168A US3804168A US00263725A US26372572A US3804168A US 3804168 A US3804168 A US 3804168A US 00263725 A US00263725 A US 00263725A US 26372572 A US26372572 A US 26372572A US 3804168 A US3804168 A US 3804168A
- Authority
- US
- United States
- Prior art keywords
- cable
- sheave
- pack
- stop
- clamp
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
- E21B33/072—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells for cable-operated tools
Definitions
- a sheave is supported above a packoff on the upper end of drill pipe permit movement of wire line into the drill pipe.
- a socket is positioned below the sheave and has a bore for receiving the wire line.
- a clamp is secured to wire line below the socket and as the wire line moves into the packoff, the clamp engages the socket to prevent further movement of the wire line into the drill pipe.
- This invention relates to a wire line clamp, and more particularly to an apparatus for clamping a wire line against movement into a drill pipe during a drilling operation.
- Such devices are commonly arranged to apply a hydraulic force about the wire line conductor to hole it in place and consequently prevent its being stripped into the well due to forces being applied to the cable.
- it is a common expedient in such operations after the instrument has been located in a seat at the bottom of the drill string, to place a clamp on the conductor cable above the pack-off line wiper and thereafter pass the cable into the pipe until the clamp has seated on top of the line wiper. This in turn provides a positive brake against further movement of wire line into the drill pipe.
- the procedure heretofore for setting such clamp has been to position the instrument in its seat at the bottom of the drill stem, then pass an additional few feet of cable into the drill pipe.
- the present invention contemplates a drilling system utilizing a wire line conductor and having a clamp system which permits all manual operations related thereto to take place on the derrick floor.
- the system includes a sheave which is positioned above a liner wiper at the upper end of the drill string and a socket which is positioned below the sheave on the opposite side of the sheave from the line wiper.
- cable emerging from the upper end of the drill string passes through the line wiper around the sheave and down through the socket. This cable then extends downwardly to another sheave on the derrick floor and onto a take up drum.
- FIG. 1 shows a schematic view of a drilling platform and derrick together with the upper end of the drill pipe and a system for passing a wire line conductor into the upper end of the pipe, and
- FIG. 2 is a detailed view of an apparatus in conjunction with the present invention for clamping a wire line against movement into a drill pipe.
- FIG. 3 is a detailed view of the wireline clamp socket shown in FIG. 2.
- FIG. 1 of the drawings a drilling platform is shown having a derrick structure and equipment supported from the derrick which is used in a directional drilling operation.
- equipment normally associated with the support of the drill pipe is not shown for the convenience of illustrating the more pertinent parts of the present invention.
- the drill string, including the bit is supported by a drilling head which in turn suspends from a hook, traveling block, wire line and crown block on top of the derrick mask.
- a drilling head 1 1 is shown positioned at the top of the drill string 12 which in turn passes through the platform floor 13 and downwardly into the borehole which is not shown.
- the drilling head includes a circulating head 14 and gooseneck 16 which are arranged for connection with a hose or the like for passing drilling fluid from pumps (not shown) into the drill string.
- a wire line packoff 17 which is also sometimes referred to as a line wiper.
- the line wiper is arranged to be disassembled so that the cable or conductor line may be passed therethrough whereupon it is reassembled to enclose the conductor cable.
- the unit is normally hydraulically actuated by means of a hydraulic line (not shown) which is connected to a hand pump.
- the hand pump provides hydraulic pressure which squeezes portions of the line wiper about the line and thereby provides a pressure seal around the line at the upper end of the drill string.
- the top section of the drill pipe 18 is connected at its upper end to the circulating head 14 and below to pipe sections extending downwardly to the bottom of the bore hole.
- a sheave support assembly 19 is shown connected to the line wiper 17 and has a vertically extending arm 21 with a sheave housing 22 positioned at its upper end.
- the sheave housing has a guard 23 and an axle 24 for supporting a sheave wheel 26.
- the sheave wheel is grooved about its periphery to provide a seat for the conductor cable 27 which is passed around the sheave.
- a bracket 28 extends outwardly from the vertical arm 21, with a wire line clamp socket 29 being fixed to the bracket.
- the socket has a vertical bore portion 31 therethrough which is aligned with the outer edge of the sheave 26.
- the inner edge of the sheave is positioned directly over the center portion of the line wiper 17.
- the socket has a spiral slot 32 formed in its wall (see FIG. 3) to permit the insertion of a cable into the bore 31 of the socket 29.
- another sheave 33 is placed near the floor of the platform and is supported by chains 34 or the like at a position on the platform opposite a powered cable take-up reel 36.
- the take-up reel 36, floor sheave 33 and upper sheave 26 are so ar ranged that the conductor cable 27 may be passed from the take-up reel around the lower sheave, through the wire line socket, and over the upper sheave.
- a wire line clamp 37 shown in FIG. 2 may be positioned on the conductor cable and tightened thereabout by means of screws 38 or the like so that it is securely fastened at one position on the cable.
- the clamp may be arranged in two parts so that it can be assembled over the cable and then tightened thereon.
- the clamp has a tapered portion 39 at its upper end which is shaped to be matingly received in a beveled seat 41 in the lower end of the socket bore 31.
- the floor sheave 33 is secured to a structural member of the derrick in line with the wire line reel 36 and the top of the borehole.
- the drilling head 11 is then assembled to the single joint of drill pipe 18.
- the upper sheave support assembly 19 is placed on the line wiper body.
- the well tool (not shown) which is to be supported by the conductor cable 27 is then lifted up and inserted through the upper end of the line wiper 17 into the upper section 18 of drill pipe.
- the cable is then reeled out until the tool is resting at the bottom of the section 18 of the drill pipe.
- the line wiper 17 is then assembled about the cable and the hydraulic hose is secured to the line wiper.
- the cable 27 is then threaded over the top of the sheave 26 and the cable guard 23 placed over the sheave.
- means for clamping the cable against movement into a drill pipe having a cable pack-off at its upper end, which means comprises: support means attached to the pack-off; sheave means attached to the pack-off; and stop means on said support means, said sheave means being arranged so that one side is positioned over the pick-off and the other side is positioned over said stop means, with said stop means having an opening for receiving the cable therethrough.
- stop means is a cylindrical member having a slot in the wall thereof to permit convenient insertion of the cable into the bore of said stop means.
- a method for clamping a cable against movement beyond a desired point into a string of pipe having a cable pack-off at its upper end including the steps of: positioning a sheave above the pack-off so that one end is aligned with the pack-off; positioning a stop member below the sheave so that a vertical bore in the stop member is in alignment with the other edge of the sheave, passing a cable through the bore of the stop member, around the sheave and into the pack-off; and placing a clamp on the cable below the stop member and intermediate the ends of the cable such that the clamp is positioned on the cable for engagement with the stop member as the cable passes into the pack-off to stop the cable from moving into the pipe beyond the desired depth.
- a method for clamping a cable against movement into a string of pipe suspended into a borehole from a well platform including the steps of: passing a cable from a reel on the platform through an opening in a stop member, around a sheave and into the string of pipe; lowering the cable into the pipe to its desired position; determining the distance from the floor of the well platform to the stop member; operating the reel to withdraw an amount of cable substantially equal to such distance from the pipe; securing a clamp to the cable at the floor of the platform, said clamp having a portion larger than the opening in the stop member; and again passing the cable into the pipe to its desired position, whereupon the clamp will engage the stop member.
- a clamping system for use with a well drilling apparatus having a derrick on a platform supporting a drill pipe and a cable pack-off at the upper end of the drill pipe, which system comprises: support means attached to the pack-off,first sheave means attached to the support means such that a first side of the sheave means is positioned over the pack-off; stop means having a central opening attached to the support means such that the stop means is under a second side of the sheave means; a cable entering the drill pipe and packoff, and extending over the sheave means and through the opening of the stop means; a clamp attached to the cable and disposed to engage the stop means; second sheave means on the platform which engages the cable below the stop means; and a take-up reel on the platform and attached to the cable.
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00263725A US3804168A (en) | 1972-06-08 | 1972-06-08 | Wire line clamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00263725A US3804168A (en) | 1972-06-08 | 1972-06-08 | Wire line clamp |
Publications (1)
Publication Number | Publication Date |
---|---|
US3804168A true US3804168A (en) | 1974-04-16 |
Family
ID=23002994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00263725A Expired - Lifetime US3804168A (en) | 1972-06-08 | 1972-06-08 | Wire line clamp |
Country Status (1)
Country | Link |
---|---|
US (1) | US3804168A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4090573A (en) * | 1976-08-18 | 1978-05-23 | Petro-Data C.A. | Wireline sealing apparatus and method for use with a drill string |
US4469171A (en) * | 1982-06-28 | 1984-09-04 | Paul Mine | Wireline guiding apparatus |
US4899816A (en) * | 1989-01-24 | 1990-02-13 | Paul Mine | Apparatus for guiding wireline |
US5465759A (en) * | 1994-03-22 | 1995-11-14 | Hydril Company | Variable diameter pipe protector |
US5542454A (en) * | 1994-04-08 | 1996-08-06 | Hydrill Company | Free flow low energy pipe protector |
US6662741B1 (en) * | 1998-08-25 | 2003-12-16 | Caltax Marine Diesel B.V. | Emergency towing system for ships |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US336829A (en) * | 1886-02-23 | Apparatus for towing and securing hawsers or lines of vessels | ||
US1499477A (en) * | 1921-08-24 | 1924-07-01 | James F Reilly | Cable attachment |
US1526346A (en) * | 1924-01-02 | 1925-02-17 | August E Kivikink | Antiglare shield for automobiles |
US2353479A (en) * | 1941-09-06 | 1944-07-11 | Yale & Towne Mfg Co | Hoist |
US2552924A (en) * | 1947-10-29 | 1951-05-15 | Internat Derrick & Equipment C | Cable anchor for well derrick lines |
US2931331A (en) * | 1958-01-30 | 1960-04-05 | Marwal Products Corp | Anchor davit |
US3071190A (en) * | 1960-12-08 | 1963-01-01 | Camco Inc | Wellhead attachment for use with wire line tools |
-
1972
- 1972-06-08 US US00263725A patent/US3804168A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US336829A (en) * | 1886-02-23 | Apparatus for towing and securing hawsers or lines of vessels | ||
US1499477A (en) * | 1921-08-24 | 1924-07-01 | James F Reilly | Cable attachment |
US1526346A (en) * | 1924-01-02 | 1925-02-17 | August E Kivikink | Antiglare shield for automobiles |
US2353479A (en) * | 1941-09-06 | 1944-07-11 | Yale & Towne Mfg Co | Hoist |
US2552924A (en) * | 1947-10-29 | 1951-05-15 | Internat Derrick & Equipment C | Cable anchor for well derrick lines |
US2931331A (en) * | 1958-01-30 | 1960-04-05 | Marwal Products Corp | Anchor davit |
US3071190A (en) * | 1960-12-08 | 1963-01-01 | Camco Inc | Wellhead attachment for use with wire line tools |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4090573A (en) * | 1976-08-18 | 1978-05-23 | Petro-Data C.A. | Wireline sealing apparatus and method for use with a drill string |
US4469171A (en) * | 1982-06-28 | 1984-09-04 | Paul Mine | Wireline guiding apparatus |
US4899816A (en) * | 1989-01-24 | 1990-02-13 | Paul Mine | Apparatus for guiding wireline |
US5465759A (en) * | 1994-03-22 | 1995-11-14 | Hydril Company | Variable diameter pipe protector |
US5542454A (en) * | 1994-04-08 | 1996-08-06 | Hydrill Company | Free flow low energy pipe protector |
US6662741B1 (en) * | 1998-08-25 | 2003-12-16 | Caltax Marine Diesel B.V. | Emergency towing system for ships |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SPERRY-SUN, INC. Free format text: CERTIFICATE OF INCORPORATION TO RESTATE INCORPORATION, EFFECTIVE JULY 21, 1976;ASSIGNOR:SPERRY-SUN WELL SURVEYING COMPANY;REEL/FRAME:005024/0918 Effective date: 19760617 Owner name: BAROID TECHNOLOGY, INC., 3000 NORTH SAM HOUSTON PA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SPERRY-SUN DRILLING SERVICES, INC.;REEL/FRAME:005024/0898 Effective date: 19890210 Owner name: SPERRY-SUN DRILLING SERVICES, INC. Free format text: CHANGE OF NAME;ASSIGNOR:NL SPERRY - SUN, INC.;REEL/FRAME:005024/0939 Effective date: 19880214 |
|
AS | Assignment |
Owner name: BAROID TECHNOLOGY, INC., A CORP. OF DE., DELAWARE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SPERRY-SUN DRILLING SERVICES, INC., A CORP. OF DE.;REEL/FRAME:005208/0161 Effective date: 19890613 Owner name: SPERRY-SUN, INC., A CORP. OF DE., DELAWARE Free format text: CHANGE OF NAME;ASSIGNOR:SPERRY-SUN WELL SURVEYING COMPANY;REEL/FRAME:005208/0153 Effective date: 19760617 Owner name: SPERRY-SUN DRILLING SERVICES, INC. Free format text: CHANGE OF NAME;ASSIGNORS:NL ACQUISTION CORPORATION, (CHANGED TO);SPERRY-SUN, INC., (CHANGED TO );NLSPERRY-SUN, INC., (CHANGED TO);REEL/FRAME:005208/0157 Effective date: 19810421 |