WO1987002095A1 - Gauge carrier for incorporation into tubing for flow-testing of oil and gas exploration wells - Google Patents
Gauge carrier for incorporation into tubing for flow-testing of oil and gas exploration wells Download PDFInfo
- Publication number
- WO1987002095A1 WO1987002095A1 PCT/GB1986/000577 GB8600577W WO8702095A1 WO 1987002095 A1 WO1987002095 A1 WO 1987002095A1 GB 8600577 W GB8600577 W GB 8600577W WO 8702095 A1 WO8702095 A1 WO 8702095A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- space
- subs
- openings
- tubing
- gauges
- Prior art date
Links
- 238000010348 incorporation Methods 0.000 title claims description 5
- 238000012360 testing method Methods 0.000 title claims description 5
- 238000005192 partition Methods 0.000 claims abstract description 7
- 230000000717 retained effect Effects 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 description 8
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000000969 carrier Substances 0.000 description 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
Definitions
- Gauge carrier for incorporation into tubing for -fi°y i ⁇ sting_gf_gil_and_gas_exQlorat on_welLs_
- This invention relates to a gauge carrier for incorporation into tubing for flow-testing of oil and gas exploration wells.
- Gauge carriers with a straight through flow path which_ allows equipment to pass through at present have the gauges mounted externally of the tubing and the tubing has parts therein so that the gauges can test the pressure and temperature of the flow within the tubirag. Disadvantages of such an arrangement are that the gauges are prone to various forms of shocks and damage, there is the possibility of leakage through the parts and of clogging of the parts.
- An object of the invention is to obviate or mitigate such disadvantages.
- a gauge carrier for incorporation into tubing for flow-testing of oil and gas exploration wells, the carrier comprising a tubular body, upper and lower subs releasably and sealingly secured to the upper and lower ends of the body, the subs being adapted at their " ends remote from the body to be incorporated into tubing and to provide openings therethrough coaxial with the openings in the tubing but offset to one side of the axis of the body, a partition wall mounted within the body and dividing the interior of the body into a first space freely communicating with the openings in the subs, and a second space in limited communication with the first space, in which second space are mounted spring-biassed holders for releasably retaining gauges within the second space.
- Fig. 1 shows the upper end of a gauge carrier in longitudinal section
- Fig. 2 shows the lower end of the gauge carrier in Fig. 1 in longitudinal section
- Fig. 3 is a section on line 111-111 in Fig. 2;
- Fig. 4 shows the upper end of another gauge carrier in longitudinal section
- Fig. 5 shows the lower end of the gauge carrier in Fig. 4 in longitudinal section
- Fig. 6 is a section on line VI-VI in Fig. 5.
- FIG. 1 there is shown an upper tubing connector 1 screwed into an upper sub 2 which is itself screwed into a tubular body 3.
- the upper sub 2 has an inwardly opening recess 4 having parallel walls slidably receiving therebetween a latching retainer 5 having a stem 6 biassed by a compresssion spring received in a cylindrical recess in the sub 2.
- the connector 1 and upper sub 2 have coaxial openings therethrough.
- the opening in the connector 1 is coaxial therewith but the opening in the sub 2 is offset to one side of the axis of body 3.
- the interior of the body 3 is divided by a curved partition wall 7 into a first space freely communicating with the coaxial openings referred to above.
- the wall 7 is releasably retained by its upper end by means of a slot in the retainer 5. As shown in Fig. 3, the wall 7 does not completely close-off the interior of the body 3 but provides limited communication between the said first space and a second space for containing gauges 8 which may be arranged in tandem. At the upper end of the second space the spacer has a recess 9 receiving a compression spring biassing an upper holder 10 for the gauges 8. As shown in Fig. 2 the lower end of the carrier is similar to the upper end shown in Fig. 1 except that the spring-biassed retainer 5 is replaced by a hinged retainer 11 swingably received in a recess 12 in the lower sub 13.
- the lower end of the wall 7 is tightly retained in a slot in the retainer 11 which is itself recessed at 14 to receive a compression spring biassing a lower holder 15.
- a lower tubing connector is shown at 16.
- the gauges are protected from shocks and damage, the springs protecting the gauges from vertical shocks.
- rubber cushioning may be placed around the installed g ' auges.
- a tool may be lowered through the tubing t.o engage a shoulder 17 on the retainer 11 and thereby lift the retainer so that the upper end of the wall 7 is released and can swing into the aligned openings.
- the gauges 8 On releasing the upper end of the wall 7 the gauges 8 are also released ready for removal by another tool lowered through the tubing.
- Fig. 4 there is shown the upper tubing connector 1 screwed into an upper sub 18 which is itself screwed into the tubular body 3.
- a spacer sub 19 is received within the body 3 and abuts the sub 18.
- the connector 1, upper sub 18 and spacer sub 19 have coaxial openings theret rough.
- the opening in the connector 1 is coaxial therewith but the openings in the subs 18 and 19 are offset to one side of the axis of the body 3.
- the interior of the body 3 is divided by a tube 20 into a first space within the tube 20 freely communicating and aligned with the coaxial openings referred to above.
- the tube 20 is inserted at its upper end into an enlargement of the opening in the spacer sub 19.
- the tube 20 is apertured at 21 to provide limited communication between the said first space and a second space for containing gauges 8.
- the spacer sub 19 At the upper end of the second space the spacer sub 19 has a recess 22 receiving a compression spring biassing an upper holder 23 for the gauges 8.
- the lower end of the carrier is similar to the upper end shown in Fig. 4 except that there is no spacer corresponding to the spacer sub 19.
- the lower end of the tube 20 is inserted into an enlargement of the opening in a lower sub 24 which is recessed at 25 to receive a compression spring biassing a lower holder 26.
- the lower tubing connector is shown at 16.
- a single gauge 8 or a number of gauges in tandem may be arranged in the said second space between a single recess 22 in the spacer sub 19 and a single recess 25 in the lower sub 24. It will be understood, however that the crescent-shaped cross-section of the second space, as clearly shown in Fig. 6, can accommodate more gauges or rows of gauges and that to this end a plurality of recesses could be provided in each of the subs 19 and 24.
Abstract
A gauge carrier comprises a tubular body (3), and upper and lower subs (2, 13). The subs (2, 13) are releasably and sealingly secured to the upper and lower ends of the body (3) and are incorporated into tubing (1, 16). The subs (2, 13) provide openings therethrough coaxial with the openings in the tubing (1, 16) but offset to one side of the axis of the body (3). In one embodiment a partition wall (7) is movably within the body (3) and can be latched in a position where it provides limited communication between a first space freely communicating with the openings in the subs (2, 13) and a second space in which gauges (8) can be releasably retained. The wall (7) can also be unlatched so that the gauges (8) can be retrieved through the openings in the subs (2, 13). In a simpler version the wall is in the form of an apertured tube mounted within the body between the openings in the subs.
Description
- 1 -
Gauge carrier for incorporation into tubing for -fi°y i§sting_gf_gil_and_gas_exQlorat on_welLs_
Descri.gti.on
This invention relates to a gauge carrier for incorporation into tubing for flow-testing of oil and gas exploration wells.
Gauge carriers with a straight through flow path which_ allows equipment to pass through, at present have the gauges mounted externally of the tubing and the tubing has parts therein so that the gauges can test the pressure and temperature of the flow within the tubirag. Disadvantages of such an arrangement are that the gauges are prone to various forms of shocks and damage, there is the possibility of leakage through the parts and of clogging of the parts.
An object of the invention is to obviate or mitigate such disadvantages.
According to the invention there is provided a gauge carrier for incorporation into tubing for flow-testing of oil and gas exploration wells, the carrier comprising a tubular body, upper and lower subs releasably and sealingly secured to the upper and lower ends of the body, the subs being adapted at their" ends remote from the body to be incorporated into tubing and to provide openings therethrough coaxial with the openings in the tubing but offset to one side of the axis of the body, a partition wall mounted within the body and dividing the interior of the body into a first space freely communicating with the openings in the subs, and a second space in limited communication with the first space, in which second space are mounted spring-biassed holders for releasably retaining gauges within the second space.
Embodiments of the invention will now be described, by way of example with reference to the accompanying drawings, in which:-
Fig. 1 shows the upper end of a gauge carrier in longitudinal section;
Fig. 2 shows the lower end of the gauge carrier in Fig. 1 in longitudinal section;
Fig. 3 is a section on line 111-111 in Fig. 2;
Fig. 4 shows the upper end of another gauge carrier in longitudinal section;
Fig. 5 shows the lower end of the gauge carrier in Fig. 4 in longitudinal section; and
Fig. 6 is a section on line VI-VI in Fig. 5.
In Fig. 1 there is shown an upper tubing connector 1 screwed into an upper sub 2 which is itself screwed into a tubular body 3. The upper sub 2 has an inwardly opening recess 4 having parallel walls slidably receiving therebetween a latching retainer 5 having a stem 6 biassed by a compresssion spring received in a cylindrical recess in the sub 2. The connector 1 and upper sub 2 have coaxial openings therethrough. The opening in the connector 1 is coaxial therewith but the opening in the sub 2 is offset to one side of the axis of body 3. The interior of the body 3 is divided by a curved partition wall 7 into a first space freely communicating with the coaxial openings referred to above. The wall 7 is releasably retained by its upper end by means of a slot in the retainer 5. As shown in Fig. 3, the wall 7 does not completely close-off the interior of the body 3 but provides limited communication between the said first space and a second space for containing gauges 8 which may be arranged in tandem. At the upper end of the second space the spacer has a recess 9 receiving a compression spring biassing an upper holder 10 for the gauges 8.
As shown in Fig. 2 the lower end of the carrier is similar to the upper end shown in Fig. 1 except that the spring-biassed retainer 5 is replaced by a hinged retainer 11 swingably received in a recess 12 in the lower sub 13. The lower end of the wall 7 is tightly retained in a slot in the retainer 11 which is itself recessed at 14 to receive a compression spring biassing a lower holder 15. A lower tubing connector is shown at 16. In use, the gauges are protected from shocks and damage, the springs protecting the gauges from vertical shocks. In order to project the gauges from horizontal shocks rubber cushioning may be placed around the installed g'auges. In order to retrieve the gauges 8 without the need to retrieve the carrier as a whole, a tool may be lowered through the tubing t.o engage a shoulder 17 on the retainer 11 and thereby lift the retainer so that the upper end of the wall 7 is released and can swing into the aligned openings. On releasing the upper end of the wall 7 the gauges 8 are also released ready for removal by another tool lowered through the tubing.
In Fig. 4 there is shown the upper tubing connector 1 screwed into an upper sub 18 which is itself screwed into the tubular body 3. A spacer sub 19 is received within the body 3 and abuts the sub 18. The connector 1, upper sub 18 and spacer sub 19 have coaxial openings theret rough. The opening in the connector 1 is coaxial therewith but the openings in the subs 18 and 19 are offset to one side of the axis of the body 3. The interior of the body 3 is divided by a tube 20 into a first space within the tube 20 freely communicating and aligned with the coaxial openings referred to above. The tube 20 is inserted at its upper end into an enlargement of the opening in the spacer sub 19. The
tube 20 is apertured at 21 to provide limited communication between the said first space and a second space for containing gauges 8. At the upper end of the second space the spacer sub 19 has a recess 22 receiving a compression spring biassing an upper holder 23 for the gauges 8.
As shown in Fig. 5 the lower end of the carrier is similar to the upper end shown in Fig. 4 except that there is no spacer corresponding to the spacer sub 19. Thus " the lower end of the tube 20 is inserted into an enlargement of the opening in a lower sub 24 which is recessed at 25 to receive a compression spring biassing a lower holder 26. The lower tubing connector is shown at 16. As shown, a single gauge 8 or a number of gauges in tandem may be arranged in the said second space between a single recess 22 in the spacer sub 19 and a single recess 25 in the lower sub 24. It will be understood, however that the crescent-shaped cross-section of the second space, as clearly shown in Fig. 6, can accommodate more gauges or rows of gauges and that to this end a plurality of recesses could be provided in each of the subs 19 and 24.
Claims
1. A gauge carrier for incorporation into tubing for flow-testing of oil and gas exploration wells, the carrier comprising a tubular body (3), upper and lower subs (2 and 13, 18 and 24) releasably and sealingly secured to the upper and lower ends of the body (3), the subs (2 and 13, 18 and 24) being adapted at their ends remote from the body (3) to be incorporated into tubing (1, 1-6) and to provide openings therethrough coaxial with the openings in the tubing (1, 16) but offset to one side of the axis of the body (3) a partition wall (7, 20) mounted within the body (3) and dividing the interior of*the body (3) into a first space freely communicating with the openings in the subs (2 and 13, 18 and 24), and a second space in limited communication with the first space, in whic.h second space are mounted spring-biassed holders (10 and 15, 23, 26) for releasably retaining gauges (8) within the second space .
2. A gauge carrier according to claim 1, wherein the partition wall (7) is movably mounted with in the body (3) and a latching retainer (5) is co-operably with the partition wall (7) and operable by means of a tool introduced through the openings in the subs (2, 13) to release the wall (7) from a latched postion where it provides the limited communication between the first space and the second space, to an unlatched position where the wall (7) permits access to the gauges (8) for retrieval thereof through the openings in the subs (2, 13) 3. A gauge carrier according to claim 1, wherein the partition wall is in the form of an internal apertured tube (20) mounted within the body (3) between the opening in the subs (18, 24) and. dividing the interior of the body (3) into the first space within the tube (20) and the second space outside the tube (20).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB858523951A GB8523951D0 (en) | 1985-09-28 | 1985-09-28 | Gauge carrier |
GB8523951 | 1985-09-28 | ||
GB868601223A GB8601223D0 (en) | 1986-01-18 | 1986-01-18 | Gauge carrier |
GB8601223 | 1986-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1987002095A1 true WO1987002095A1 (en) | 1987-04-09 |
Family
ID=26289816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1986/000577 WO1987002095A1 (en) | 1985-09-28 | 1986-09-29 | Gauge carrier for incorporation into tubing for flow-testing of oil and gas exploration wells |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0238601A1 (en) |
WO (1) | WO1987002095A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0225754A2 (en) * | 1985-11-25 | 1987-06-16 | Halliburton Company | Downhole gauge carrier |
FR2707334A1 (en) * | 1993-07-05 | 1995-01-13 | Goldschild Pierre | Method and device for mounting and dismounting an apparatus in and from a container with a side pocket of a drilling well |
GB2354022A (en) * | 1999-09-07 | 2001-03-14 | Antech Ltd | Gauge carrier with separate instrument housing |
US6655452B2 (en) | 2001-09-21 | 2003-12-02 | Fred Zillinger | Downhole gauge carrier apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2314868A (en) * | 1939-12-08 | 1943-03-30 | Boynton Alexander | Flowing device, tubing, and casing flow |
US2964942A (en) * | 1958-09-08 | 1960-12-20 | Shell Oil Co | Bottom-hole pressure testing apparatus |
US3101735A (en) * | 1960-03-17 | 1963-08-27 | Us Industries Inc | Side pocket mandrel with an automatic valve |
US4432416A (en) * | 1982-02-23 | 1984-02-21 | Otis Engineering Corporation | Well flow control apparatus |
-
1986
- 1986-09-29 WO PCT/GB1986/000577 patent/WO1987002095A1/en unknown
- 1986-09-29 EP EP86905880A patent/EP0238601A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2314868A (en) * | 1939-12-08 | 1943-03-30 | Boynton Alexander | Flowing device, tubing, and casing flow |
US2964942A (en) * | 1958-09-08 | 1960-12-20 | Shell Oil Co | Bottom-hole pressure testing apparatus |
US3101735A (en) * | 1960-03-17 | 1963-08-27 | Us Industries Inc | Side pocket mandrel with an automatic valve |
US4432416A (en) * | 1982-02-23 | 1984-02-21 | Otis Engineering Corporation | Well flow control apparatus |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0225754A2 (en) * | 1985-11-25 | 1987-06-16 | Halliburton Company | Downhole gauge carrier |
EP0225754A3 (en) * | 1985-11-25 | 1989-03-15 | Halliburton Company | Downhole gauge carrier |
FR2707334A1 (en) * | 1993-07-05 | 1995-01-13 | Goldschild Pierre | Method and device for mounting and dismounting an apparatus in and from a container with a side pocket of a drilling well |
GB2354022A (en) * | 1999-09-07 | 2001-03-14 | Antech Ltd | Gauge carrier with separate instrument housing |
US6523609B1 (en) | 1999-09-07 | 2003-02-25 | Antech Limited | Borehole pressure gauge |
GB2354022B (en) * | 1999-09-07 | 2003-10-29 | Antech Ltd | Carrier assembly |
US6655452B2 (en) | 2001-09-21 | 2003-12-02 | Fred Zillinger | Downhole gauge carrier apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP0238601A1 (en) | 1987-09-30 |
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