CA2497714A1 - Data logger plunger - Google Patents
Data logger plunger Download PDFInfo
- Publication number
- CA2497714A1 CA2497714A1 CA002497714A CA2497714A CA2497714A1 CA 2497714 A1 CA2497714 A1 CA 2497714A1 CA 002497714 A CA002497714 A CA 002497714A CA 2497714 A CA2497714 A CA 2497714A CA 2497714 A1 CA2497714 A1 CA 2497714A1
- Authority
- CA
- Canada
- Prior art keywords
- plunger
- cargo bay
- canister
- downhole
- retriever
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract 19
- 230000007613 environmental effect Effects 0.000 claims abstract 5
- 241000251468 Actinopterygii Species 0.000 claims 10
- 238000004891 communication Methods 0.000 claims 5
- 238000000034 method Methods 0.000 claims 4
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000013500 data storage Methods 0.000 claims 1
- 230000003116 impacting effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
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
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
Abstract
A downhole plunger for oil and gas wells is fitted with an electronic ambient environmental sensor via a cargo bay. The sensor is preferably a downhole time, temperature, pressure and flow sensor. The sensor has a measured data memory.
When the plunger is retrieved from a well, the sensor is removed and connected to a computer for data display and processing. A data logger canister can be affixed to the top, the bottom, or one on the top and one on the bottom, of a plunger. An empty cargo bay can be a fluid sampler. Other items insertable in the cargo bay include corrosion coupons.
When the plunger is retrieved from a well, the sensor is removed and connected to a computer for data display and processing. A data logger canister can be affixed to the top, the bottom, or one on the top and one on the bottom, of a plunger. An empty cargo bay can be a fluid sampler. Other items insertable in the cargo bay include corrosion coupons.
Claims (32)
1. A plunger suited to travel in a downhole tube, said plunger comprising:
a cylindrical body with an external sidewall geometry;
a connector means at one end of the body functioning to provide a mount for a canister; and said canister further comprising an internal cargo bay, and a fluid channel to the cargo bay.
a cylindrical body with an external sidewall geometry;
a connector means at one end of the body functioning to provide a mount for a canister; and said canister further comprising an internal cargo bay, and a fluid channel to the cargo bay.
2. The plunger of claim 1, wherein the connector means further comprises a threaded female port, and the canister further comprises a threaded, male connector end.
3. The plunger of claim 1, wherein the fluid channel further comprises a hole in an external wall of the canister.
4. The plunger of claim 1, wherein the cargo bay further comprises a data logger mounted therein.
5. The plunger of claim 4, wherein the cargo bay further comprises a flexible stop engaged with the data logger.
6. The plunger of claim 4, wherein the data logger further comprises a battery, a sensor and a data storage module.
7. The plunger of claim 6, wherein the data logger further comprises an electronic port for data transfer.
8. The plunger of claim 1, wherein the cylindrical body further comprises a lower end having a fluid inlet port, a fluid channel from the inlet port to an exit port at an upper end, and said upper end having the connector means.
9. The plunger of claim 1, wherein the fluid channel further comprises a hollow in the canister having a fluid communication with a channel in the cylindrical body.
10. In a downhole tube plunger having a body with an external sidewall geometry, an improvement to the plunger comprising:
a detachable canister having an internal cargo bay; and said detachable canister having a fluid channel to the cargo bay.
a detachable canister having an internal cargo bay; and said detachable canister having a fluid channel to the cargo bay.
11. The apparatus of claim 10, wherein the body has a threaded end to accommodate a threaded end of the canister.
12. The apparatus of claim 11, wherein the fluid channel further comprises a hole in an external wall of the canister.
13. The apparatus of claim 10, wherein the cargo bay further comprises a data logger mounted therein.
14. The apparatus of claim 13, wherein the cargo bay further comprises a flexible stop engaged with the data logger.
15. The apparatus of claim 10, wherein the body further comprises a lower end having a fluid inlet port, a fluid channel from the inlet port to an exit port at an upper end, and said upper end having a connector means functioning to detachably mate with the canister.
16. The apparatus of claim 10, wherein the fluid channel further comprises a hollow in the canister having a fluid communication with a channel in the cylindrical body.
17. A plunger suited to travel in a downhole tube, said plunger comprising:
a cylindrical body with an external sidewall geometry;
a connector means at each end of the body functioning to provide a mount for a canister; and a canister detachable at each end of the body, each canister further comprising an internal cargo bay and a fluid channel to the cargo bay.
a cylindrical body with an external sidewall geometry;
a connector means at each end of the body functioning to provide a mount for a canister; and a canister detachable at each end of the body, each canister further comprising an internal cargo bay and a fluid channel to the cargo bay.
18. The plunger of claim 17, wherein the fluid channel further comprises a hole in an external wall of the canister.
19. The plunger of claim 17, wherein the cargo bay further comprises a data logger mounted therein.
20. In a downhole tube plunger having a body with an external sidewall geometry, an improvement to the plunger comprising:
a canister extending from a bottom end of the body;
said canister having an internal cargo bay with a fluid communication channel thereto, and having a removable means to access the cargo bay functioning to allow an input/output of cargo to and from the cargo bay;
and a top end of the body having a coupler means functioning to removably couple a retriever plunger thereto.
a canister extending from a bottom end of the body;
said canister having an internal cargo bay with a fluid communication channel thereto, and having a removable means to access the cargo bay functioning to allow an input/output of cargo to and from the cargo bay;
and a top end of the body having a coupler means functioning to removably couple a retriever plunger thereto.
21. The apparatus of claim 20, wherein the retriever plunger further comprises a body with a fish neck top and a bottom coupler means functioning to engage the top end of the plunger body coupler means upon impact therewith in a downhole tube, and further functioning to be detachable therefrom.
22. The apparatus of claim 21, wherein the top end of the plunger body coupler means further comprises a female hollow with an interior wall having a locking groove, and the retriever plunger bottom coupler means further comprises a male engagement rod having a movable locking ball means functioning to engage the locking groove, and disengage the locking groove when the coupled plunger and retriever plunger are turned upside down.
23. The apparatus of claim 20, wherein the canister removable means further comprises a screw on cap at the bottom of the canister.
24. The apparatus of claim 20, wherein the cargo bay further comprises a data logger mounted therein.
25. A plunger suited for travel downhole in a tube, said plunger comprising:
a body having an external geometry suited to travel down a tube;
said body having an interior cargo bay located along its longitudinal axis and having a fluid communication channel from an external body wall to the cargo bay, and said body having a first end with a removable fish neck end providing an entrance to the cargo bay, and having a second end with a fish neck end.
a body having an external geometry suited to travel down a tube;
said body having an interior cargo bay located along its longitudinal axis and having a fluid communication channel from an external body wall to the cargo bay, and said body having a first end with a removable fish neck end providing an entrance to the cargo bay, and having a second end with a fish neck end.
26. The apparatus of claim 25, wherein the cargo bay further comprises a shock absorbing means functioning to protect a cargo container in a sudden stop of the plunger.
27. The apparatus of claim 26, wherein the cargo container further comprises a data logger.
28. A coupled set of plungers suited to travel in tandem downhole in a tube, said set of plungers comprising:
a cargo bay plunger having at least two guide rails extending from a peripheral wall of a body;
said guide rails providing a fluid flow path therebetween for providing a large enough bypass flow for the plunger to stay downhole;
said body having a removable end to provide an access to the cargo bay;
said body having an end, either opposite the removable end or the removable end itself, wherein an outside diameter fish neck emanates;
a carrier plunger;
said carrier plunger having a top end with a fish neck means functioning to provide a coupling to a retrieving tool; and said carrier plunger having a bottom engagement assembly means functioning to engage the outside diameter fish neck of the cargo bay plunger upon impact therewith downhole, and further functioning to release from said outside diameter fish neck when downhole heat triggers a thermal actuator.
a cargo bay plunger having at least two guide rails extending from a peripheral wall of a body;
said guide rails providing a fluid flow path therebetween for providing a large enough bypass flow for the plunger to stay downhole;
said body having a removable end to provide an access to the cargo bay;
said body having an end, either opposite the removable end or the removable end itself, wherein an outside diameter fish neck emanates;
a carrier plunger;
said carrier plunger having a top end with a fish neck means functioning to provide a coupling to a retrieving tool; and said carrier plunger having a bottom engagement assembly means functioning to engage the outside diameter fish neck of the cargo bay plunger upon impact therewith downhole, and further functioning to release from said outside diameter fish neck when downhole heat triggers a thermal actuator.
29. The apparatus of claim 28, wherein the bottom engagement assembly means further comprises at least two spring arms which engage a ridge in the outside diameter fish neck for engagement thereto, and wherein the thermal actuator has an extendable piston which, when activated, pushes off the retriever plunger from the cargo bay plunger.
30. A coupled set of plungers suited to travel in tandem downhole in a tube, said set of plungers comprising:
an external flow plunger having an internal cargo bay;
said external flow plunger having a fluid communication channel to the cargo bay;
said external flow plunger having a fish neck means functioning to couple to a retriever plunger;
said retriever plunger having a thermal actuated disengagement means functioning to engage the fish neck means upon impact therewith an disengage therefrom upon application of heat thereto.
an external flow plunger having an internal cargo bay;
said external flow plunger having a fluid communication channel to the cargo bay;
said external flow plunger having a fish neck means functioning to couple to a retriever plunger;
said retriever plunger having a thermal actuated disengagement means functioning to engage the fish neck means upon impact therewith an disengage therefrom upon application of heat thereto.
31. A method to ascertain a downhole environmental condition, said method comprising the steps of:
providing a plunger with a cargo bay therein;
inserting a data logger into the cargo bay;
dropping the plunger downhole;
retrieving the plunger; and removing the data logger from the cargo bay.
providing a plunger with a cargo bay therein;
inserting a data logger into the cargo bay;
dropping the plunger downhole;
retrieving the plunger; and removing the data logger from the cargo bay.
32. A method to ascertain a downhole environmental condition, said method comprising the steps of:
providing an external flow plunger with a cargo bay;
inserting an environmental sampler into the cargo bay;
coupling a retriever plunger to the external flow plunger;
dropping the tandem external flow and retriever plungers downhole;
uncoupling via thermal expansion means the retriever plunger from the external flow plunger;
impacting the retriever plunger onto the external flow plunger;
retrieving the tandem external flow and retriever plungers; and removing the environmental sampler.
providing an external flow plunger with a cargo bay;
inserting an environmental sampler into the cargo bay;
coupling a retriever plunger to the external flow plunger;
dropping the tandem external flow and retriever plungers downhole;
uncoupling via thermal expansion means the retriever plunger from the external flow plunger;
impacting the retriever plunger onto the external flow plunger;
retrieving the tandem external flow and retriever plungers; and removing the environmental sampler.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US54567904P | 2004-02-18 | 2004-02-18 | |
| US60/545,679 | 2004-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2497714A1 true CA2497714A1 (en) | 2005-08-18 |
| CA2497714C CA2497714C (en) | 2011-12-20 |
Family
ID=34886181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2497714A Active CA2497714C (en) | 2004-02-18 | 2005-02-18 | Data logger plunger |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US7690425B2 (en) |
| CA (1) | CA2497714C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7314080B2 (en) | 2005-12-30 | 2008-01-01 | Production Control Services, Inc. | Slidable sleeve plunger |
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-
2005
- 2005-02-17 US US11/060,513 patent/US7690425B2/en active Active
- 2005-02-18 CA CA2497714A patent/CA2497714C/en active Active
-
2007
- 2007-10-31 US US11/933,033 patent/US7597143B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7314080B2 (en) | 2005-12-30 | 2008-01-01 | Production Control Services, Inc. | Slidable sleeve plunger |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050178543A1 (en) | 2005-08-18 |
| CA2497714C (en) | 2011-12-20 |
| US20080110617A1 (en) | 2008-05-15 |
| US7597143B2 (en) | 2009-10-06 |
| US7690425B2 (en) | 2010-04-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |