US5042297A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well-logging process and device in a non-flowing production well
Assignee: IFP Energies nouvelles
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Filing: 1989-10-16
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Granted: 1991-08-27
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Expires: 2009-10-16
Abstract
Abstract A well logging process and device for use in a non-flowing production well, wherein the well is activated to trigger production of effluents on both sides of a first measuring arrangement, with at least a part of the effluents coming from upstream of the flow, relative to the measuring arrangement and being handled by the measuring arrangement.
Inventors
- 👤 Jacques Lessi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:14
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08; E21B49/087; E21B43/00; E21B43/12; E21B43/121; E21B43/128; E21B47/00; E21B47/06; E21B47/10
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
77 words
Process for making production well logs in a non-flowing well having a slanting or horizontal part the process comprising the steps of providing at least a first measuring means in the well, activating said well to trigger production of effluents on both sides of said first measuring means, and measuring at least one of a flow and composition mixture of at least one part of the effluents from a flow upstream relative to said first measuring means.
Claim 2
Dependent Claim
77 words
Process for making production well logs in a non-flowing well having a slanting or horizontal part the process comprising the steps of providing at least a first measuring means in the well, activating said well to trigger production of effluents on both sides of said first measuring means, and measuring at least one of a flow and composition mixture of at least one part of the effluents from a flow upstream relative to said first measuring means.
Claim 3
Dependent Claim
48 words
A process according to claim 1, further comprising the steps of providing a second measuring means in the well, and measuring at least one of a flow and composition mixture of at least one part of the effluents from a flow downstream relative to said first measuring means.
Claim 4
Dependent Claim
20 words
Process according to claim 1 wherein said first measuring means is adapted to measure substantially all of the upstream flow.
Claim 5
Dependent Claim
29 words
Process according to claim 1, further comprising the steps of providing a second measuring means in the well, and measuring substantially all flow downstream of said first measuring means.
Claim 6
Dependent Claim
27 words
Process according to claim 1, further comprising the step of monitoring a pressure differential existing in the production well between respective sides of said first measuring means.
Claim 7
Dependent Claim
28 words
Process according to claim 1, further comprising the step of calculating balances based on a comparison of downhole measurements with well head conditions converted into a downhole condition.
Claim 8
Dependent Claim
21 words
Process according to claim 1, further comprising the step of calibrating the first measuring means by eliminating a flow downstream thereof.
Claim 9
Dependent Claim
22 words
Process according to claim 1, wherein, further comprising the step of transmitting information from a bottom of the well by electromagnetic waves.
Claim 10
Dependent Claim
63 words
Device for making production well logs in a non-flowing well, the device comprising means for activating to production of the well, and first measuring means located upstream of said activation means for measuring at least one of a flow and composition mixture of effluent produced by activation of the well of at least a part of a flow upstream of said activation means.
Claim 11
Dependent Claim
63 words
Device for making production well logs in a non-flowing well, the device comprising means for activating to production of the well, and first measuring means located upstream of said activation means for measuring at least one of a flow and composition mixture of effluent produced by activation of the well of at least a part of a flow upstream of said activation means.
Claim 12
Dependent Claim
18 words
Device according to claim 9, further comprising channel means between said activation means and said first measuring means.
Claim 13
Dependent Claim
53 words
Device according to claim 10, further comprising second measuring means for measuring at least one of a flow rate and mixture composition of at least a part of a flow of effluent downstream of said first measuring means, and wherein an inlet to said second measuring means is connected to said channel means.
Claim 14
Dependent Claim
28 words
Device according to one of claims 9, 10 or 11, further comprising means for separating the upstream flow from the flow downstream relative to said first measuring means.
Claim 15
Dependent Claim
24 words
Device according to claim 9, further comprising means for measuring one of pressures and pressure differentials between respective sides of said first measuring means.
Claim 16
Dependent Claim
34 words
Device according to claim 13, further comprising pressure measuring means for measuring said pressure differential and at least one of an upstream or downstream pressure prevailing on either side of said first measuring means.
Claim 17
Dependent Claim
21 words
Device according to claim 9, further comprising means for regulating a pressure differential between respective sides of said first measuring means.
Claim 18
Dependent Claim
13 words
Device according to claim 9, wherein said activation means comprises an electric motor.
Claim 19
Dependent Claim
13 words
Device according to claim 9, wherein said activation means comprises a hydraulic motor.
Claim 20
Dependent Claim
25 words
Device according to claim 9 wherein said activation means and said measuring means are attached to an end of a tubing arranged in the well.
Claim 21
Dependent Claim
23 words
Device according to claim 18, wherein said activation means comprises a hydraulic motor supplied by a secondary tubing located in said first-mentioned tubing.
Claim 22
Dependent Claim
20 words
Device according to claim 9, further comprising means for transmitting information from a bottom of the well by electromagnetic waves.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |