US3746329A - Piston type shock absorbing and static load supporting drill string apparatus - Google Patents
Piston type shock absorbing and static load supporting drill string apparatus Download PDFInfo
- Publication number
- US3746329A US3746329A US00195999A US3746329DA US3746329A US 3746329 A US3746329 A US 3746329A US 00195999 A US00195999 A US 00195999A US 3746329D A US3746329D A US 3746329DA US 3746329 A US3746329 A US 3746329A
- Authority
- US
- United States
- Prior art keywords
- piston
- gas
- region
- liquid
- drill string
- 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
- 230000035939 shock Effects 0.000 title claims abstract description 25
- 230000003068 static effect Effects 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000005553 drilling Methods 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 11
- 230000002706 hydrostatic effect Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 2
- 238000011068 loading method Methods 0.000 abstract description 8
- 230000005012 migration Effects 0.000 abstract description 8
- 238000013508 migration Methods 0.000 abstract description 8
- 239000007787 solid Substances 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 46
- 230000001050 lubricating effect Effects 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/066—Units characterised by the partition, baffle or like element
- F16F9/067—Partitions of the piston type, e.g. sliding pistons
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
Abstract
Description
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19599971A | 1971-11-05 | 1971-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3746329A true US3746329A (en) | 1973-07-17 |
Family
ID=22723707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00195999A Expired - Lifetime US3746329A (en) | 1971-11-05 | 1971-11-05 | Piston type shock absorbing and static load supporting drill string apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US3746329A (en) |
CA (1) | CA951307A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3871622A (en) * | 1972-07-25 | 1975-03-18 | Vetco Offshore Ind Inc | Method and apparatus for the control of a weight suspended from a floating vessel |
US4055338A (en) * | 1976-02-17 | 1977-10-25 | Hughes Tool Company | Drill string shock absorbing apparatus |
US4402495A (en) * | 1979-12-10 | 1983-09-06 | Hughes Tool Company | Drill string shock absorber with pressurized lubricant system |
FR2624909A1 (en) * | 1987-12-21 | 1989-06-23 | Tampella Oy Ab | METHOD AND APPARATUS FOR ROTARY DRILLING |
US5140894A (en) * | 1991-01-16 | 1992-08-25 | Axelson, Inc. | Gas spring actuator |
US5577566A (en) * | 1995-08-09 | 1996-11-26 | Weatherford U.S., Inc. | Releasing tool |
EP0780543A3 (en) * | 1995-12-20 | 1998-08-26 | Sofitech N.V. | Pressure compensated weight on bit shock sub for a wellbore drilling tool |
US6039118A (en) * | 1997-05-01 | 2000-03-21 | Weatherford/Lamb, Inc. | Wellbore tool movement control and method of controlling a wellbore tool |
US6070670A (en) * | 1997-05-01 | 2000-06-06 | Weatherford/Lamb, Inc. | Movement control system for wellbore apparatus and method of controlling a wellbore tool |
EP1021635A1 (en) * | 1997-10-09 | 2000-07-26 | Weatherford/Lamb Inc. | Gas-filled accelerator |
US20220090449A1 (en) * | 2016-12-20 | 2022-03-24 | National Oilwell DHT, L.P. | Drilling Oscillation Systems and Shock Tools for Same |
-
1971
- 1971-11-05 US US00195999A patent/US3746329A/en not_active Expired - Lifetime
-
1972
- 1972-05-11 CA CA141,889,A patent/CA951307A/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3871622A (en) * | 1972-07-25 | 1975-03-18 | Vetco Offshore Ind Inc | Method and apparatus for the control of a weight suspended from a floating vessel |
US4055338A (en) * | 1976-02-17 | 1977-10-25 | Hughes Tool Company | Drill string shock absorbing apparatus |
US4402495A (en) * | 1979-12-10 | 1983-09-06 | Hughes Tool Company | Drill string shock absorber with pressurized lubricant system |
FR2624909A1 (en) * | 1987-12-21 | 1989-06-23 | Tampella Oy Ab | METHOD AND APPARATUS FOR ROTARY DRILLING |
US5140894A (en) * | 1991-01-16 | 1992-08-25 | Axelson, Inc. | Gas spring actuator |
US5577566A (en) * | 1995-08-09 | 1996-11-26 | Weatherford U.S., Inc. | Releasing tool |
EP0780543A3 (en) * | 1995-12-20 | 1998-08-26 | Sofitech N.V. | Pressure compensated weight on bit shock sub for a wellbore drilling tool |
US6039118A (en) * | 1997-05-01 | 2000-03-21 | Weatherford/Lamb, Inc. | Wellbore tool movement control and method of controlling a wellbore tool |
US6070670A (en) * | 1997-05-01 | 2000-06-06 | Weatherford/Lamb, Inc. | Movement control system for wellbore apparatus and method of controlling a wellbore tool |
EP1021635A1 (en) * | 1997-10-09 | 2000-07-26 | Weatherford/Lamb Inc. | Gas-filled accelerator |
EP1021635A4 (en) * | 1997-10-09 | 2000-11-29 | Weatherford Lamb | Gas-filled accelerator |
US20220090449A1 (en) * | 2016-12-20 | 2022-03-24 | National Oilwell DHT, L.P. | Drilling Oscillation Systems and Shock Tools for Same |
US11814959B2 (en) * | 2016-12-20 | 2023-11-14 | National Oilwell Varco, L.P. | Methods for increasing the amplitude of reciprocal extensions and contractions of a shock tool for drilling operations |
Also Published As
Publication number | Publication date |
---|---|
CA951307A (en) | 1974-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HUGHES TOOL COMPANY - USA A CORP OF DE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. SUBJECT TO LICENSE RECITED;ASSIGNOR:HUGHES TOOL COMPANY;REEL/FRAME:004269/0060 Effective date: 19840330 |
|
AS | Assignment |
Owner name: HUGHES TOOL COMPANY Free format text: CHANGE OF NAME;ASSIGNOR:HUGHES TOOL COMPANY-USA, A CORP. OF DE;REEL/FRAME:005169/0319 Effective date: 19881006 |
|
AS | Assignment |
Owner name: LYNX TOOL COMPANY, INC., A TEXAS CORP., CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HUGHES TOOL COMPANY - USA;REEL/FRAME:005007/0973 Effective date: 19880623 |