US5156223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid operated vibratory jar with rotating bit
Assignee: Baker Hughes Holdings LLC
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Filing: 1991-05-14
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Granted: 1992-10-20
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Expires: 2011-05-14
Abstract
Abstract A downhole oil well tool uses impact, reciprocal drilling and an improved rotating bit or like working member, receiving both fluid pressure and weight from an elongated pipe string with a flow bore in order to drive the tool. A valve within tool housing controls fluid pressure to the working end so that the tool pressures up, then releases pressure through the working member allowing the pipe string to load the bit, creating impact. A clutch rotates the working member during drilling to prevent imprint upon the formation. A bias spring is provided to control and adjust the amount of weight on the bit independent of pipe weight.
Inventors
- 👤 James E. Hipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:55
CPC Classifications
E; E21; E21B; E21B31/00; E21B31/107; E21B31/113; E21B17/00; E21B17/02; E21B17/04; E21B17/07; E21B17/073; E21B4/00; E21B4/06; E21B4/14; E21B4/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
158 words
An impact, driven well tool for use with an elongated tubular pipe string having a central flow conveying bore for channelling pressurized fluid to the tool, comprising: a) an elongated longitudinally extending tool body having means for connecting the tool body to the pipe string; b) a fluid chamber in the tool body in fluid communication with the pipe string bore; c) a stem reciprocally movable within the tool body in a telescoping fashion, the stem having a lower end portion for carrying a working member; d) pressure responsive valve means for controlling relative movement of the stem and tool body; e) clutch means concentrically positioned between the stem and tool body and extendable below the tool body during use for rotating the working member in one direction during a downward movement of the tool body relative to the stem; and f) bit loading means internally of the tool body for adjusting the weight on the working member.
Claim 2
Dependent Claim
158 words
An impact, driven well tool for use with an elongated tubular pipe string having a central flow conveying bore for channelling pressurized fluid to the tool, comprising: a) an elongated longitudinally extending tool body having means for connecting the tool body to the pipe string; b) a fluid chamber in the tool body in fluid communication with the pipe string bore; c) a stem reciprocally movable within the tool body in a telescoping fashion, the stem having a lower end portion for carrying a working member; d) pressure responsive valve means for controlling relative movement of the stem and tool body; e) clutch means concentrically positioned between the stem and tool body and extendable below the tool body during use for rotating the working member in one direction during a downward movement of the tool body relative to the stem; and f) bit loading means internally of the tool body for adjusting the weight on the working member.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 wherein the bit loading means is a bias means for selectively setting a predetermined bit weight.
Claim 4
Dependent Claim
12 words
The apparatus of claim 2 wherein the bias means is a spring.
Claim 5
Dependent Claim
20 words
The apparatus of claim 1 wherein the bit loading means is positioned concentrically between the stem and the tool body.
Claim 6
Dependent Claim
167 words
An impact, driven well tool for use with an elongated tubular pipe string having a central flow conveying bore for channelling pressurized fluid to the tool, comprising: a) an elongated longitudinally extending tool body having means for connecting the tool body to the pipe string; b) a fluid chamber in the tool body in fluid communication with the pipe string bore; c) a stem reciprocally movable within the tool body in a telescoping fashion, the stem having a lower end portion for carrying a working member; d) pressure responsive valve means for controlling relative movement of the stem and tool body; e) annular clutch means positioned about the stem generally between the stem and housing, and extendable with the stem in relation to the tool body during use, for rotating the working member in one direction during a downward movement of the tool body and relative to the stem; and f) bit loading means internally of the tool body for adjusting the weight on the working member.
Claim 7
Dependent Claim
167 words
An impact, driven well tool for use with an elongated tubular pipe string having a central flow conveying bore for channelling pressurized fluid to the tool, comprising: a) an elongated longitudinally extending tool body having means for connecting the tool body to the pipe string; b) a fluid chamber in the tool body in fluid communication with the pipe string bore; c) a stem reciprocally movable within the tool body in a telescoping fashion, the stem having a lower end portion for carrying a working member; d) pressure responsive valve means for controlling relative movement of the stem and tool body; e) annular clutch means positioned about the stem generally between the stem and housing, and extendable with the stem in relation to the tool body during use, for rotating the working member in one direction during a downward movement of the tool body and relative to the stem; and f) bit loading means internally of the tool body for adjusting the weight on the working member.
Claim 8
Dependent Claim
21 words
The apparatus of claim 5 wherein the bit loading means is a bias means for selectively setting a predetermined bit weight.
Claim 9
Dependent Claim
12 words
The apparatus of claim 5 wherein the bias means is a spring.
References Cited (Backward Citations)
US1654833A
Cited
US1861042A
Cited
US1934252A
Cited
US2755069A
Cited
US3815692A
Cited
US3946819A
Cited
US3978931A
Cited
US4209070A
Cited
US4462471A
Cited
US4958690A
Cited
US4928770A
Cited
US4958691A
Cited
US5029642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-20 | 1996-04-20 | 1996-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-20 | 2000-04-20 | 2000-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-20 | 2004-04-20 | 2004-10-20 | $7700.00 | Window Closed / Lapsed |