CN2625575Y - Stratified waterflooding apparatus for gravel sand prevention water injection well of offshore oil field - Google Patents
Stratified waterflooding apparatus for gravel sand prevention water injection well of offshore oil field Download PDFInfo
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- CN2625575Y CN2625575Y CN 03257788 CN03257788U CN2625575Y CN 2625575 Y CN2625575 Y CN 2625575Y CN 03257788 CN03257788 CN 03257788 CN 03257788 U CN03257788 U CN 03257788U CN 2625575 Y CN2625575 Y CN 2625575Y
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- injection well
- water injection
- plug
- water
- flow regulator
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Abstract
The utility model relates to an offshore oil field water injection device, in particular to a stratified water injection device for an offshore oil field gravel sand-proof injection well which is characterized in that the device is a 'one cast, three divisions' stratified water injection pipe column that is orderly sleeved by a slip pipe, a sliding bush, a plug-in sealer (1), a positioning plug-in sealed water distributing device working barrel, a water distributing device which can be provided with a three-layer water faucet, a plug-in sealer (2), an oil pipe with holes and a plug part, which are connected into a whole by tightening a plug buckle, thereby solving the problem of improving the oil extraction rate of the offshore oil field stratified water injection and thus the device is suitable for the offshore field water injection.
Description
Technical field
The utility model relates to a kind of offshore oilfield water filling device, especially relates to a kind of offshore oilfield gravel sand prevention water injection well seperated layer water injection device.
Background technology
Existing offshore oilfield water injection well adopts three sections sand control completions of wire-wrapped screen gravel pack more, and each sand control interval thickness is 50～100m, 30 °～60 ° of hole deviations, and the interior latus rectum of sand control pipe is much smaller than the interior latus rectum (5 of land conventional waterflooding well after the completion
1Latus rectum is diameter 121.36mm in the/2in sleeve pipe water injection well minimum), the incompatibility offshore oilfield mostly is the non-homogeneity sandstone oil field, in-place permeability is differential big, the viscosity of crude condition with higher, promptly the water that is injected advances very fast along high permeability zone, and middle less permeable layer waterflooding effect is not obvious, be difficult to advance multi-zone flow regulating according to each stratum suction situation of water injection well, guaranteeing to inject water evenly advances at each interval, water absorption with the restriction high permeability zone, less permeable layer flood effectiveness in improving relatively improves the recovery ratio in oil field.
The utility model content
The purpose of this utility model is at the above-mentioned problems in the prior art, a kind of offshore oilfield gravel sand prevention water injection well seperated layer water injection device is provided, can be according to each stratum suction situation multi-zone flow regulating of water injection well, guarantee that the water that injects evenly advances at each interval, the water absorption of restriction high permeability zone, less permeable layer flood effectiveness in improving relatively is to reach the recovery ratio that improves offshore oilfield.
The technical solution of the utility model is to adopt " one threw three fens " separate zone waterflooding technology scheme, the injection well downhole flow regulator that is about to three layers of water nozzle is loaded in one and with water injection string and seals, after the measurement and analysis-by-synthesis to water filling geological stratification pressure and suction parameter, finish the multi-zone flow regulating of three geology intervals by electronic pressure gauge and water ga(u)ge with disposable wire Launching and Bailing operation.
Its scheme is characterised in that its device is a kind of " one threw three fens " separate layer water injection string, by telescoping tube, sliding sleeve, plug-in type sealer I, can locate insert sealed injection well downhole flow regulator seating nipple, can be with injection well downhole flow regulator, plug-in type sealer II, oil pipe with holes and the plug partial order suit of three layers of water nozzle, tightening screwed connection is that one is formed.
The utlity model has following beneficial effect: injection well downhole flow regulator adopts the freely falling body mode to be located in and puts in place, and seat is gone into mode and simple and reliable; A steel wire operation just can be finished the transposing of three layers of water nozzle on the injection well downhole flow regulator; Zonal testing adopts downhole flowmeter directly to enroll individual layer injection allocation amount, and data reduces and repeats operating rate accurately and reliably;
Separate injection tubing string adopts the second joint sand control packer location, and injection allocation tubing string employing telescoping tube has improved the reliability of tubing string location sealing and tubing string is stable and long service life;
Latus rectum is the multi-zone flow regulating of the water injection well of diameter 82.55mm or diameter 98.55mm in being applicable to behind three sections sand control completions, and the maximum injection rate of individual layer can reach 500m
3/ d has saved operating cost greatly, can significantly improve the offshore oil exploitation economic benefit.
Description of drawings
Fig. 1 is the utility model one concrete structure schematic diagram and Figure of abstract;
Fig. 2 is for can be with the structural representation of " one threw three fens " injection well downhole flow regulators 10 of three layers of water nozzle among Fig. 1;
Fig. 3 is the structural representation of injection well downhole flow regulator 10 seating nipples 9 among Fig. 1;
Fig. 4 is the combination schematic diagram of injection well downhole flow regulator 10 and seating nipple 9 thereof among Fig. 1;
Fig. 5 is water nozzle pressure cap 18,26 and 33 enlarged drawings among Fig. 2;
Fig. 6 is water nozzle 19,27 and 34 a enlarged drawing among Fig. 2;
Fig. 7 is compression spring 36 enlarged drawings among Fig. 2.
The specific embodiment
With reference to Fig. 1 as can be known the utility model one specifically install, it is characterized in that its device is a kind of " one threw three fens " separate layer water injection string, by telescoping tube 6, sliding sleeve 7, plug-in type sealer 8, can locate insert sealed injection well downhole flow regulator seating nipple 9, can be with injection well downhole flow regulator 10, plug-in type sealer 11, oil pipe with holes 12 and the plug part 55 orderly suits of three layers of water nozzle, tightening screwed connection is the one composition.
Said apparatus places by sleeve pipe 1, first, second and third level sand control packer 2,3 and 4 and the water injection well tubing string that constitutes of bottom sand control packer 5.
Telescoping tube 6 can be selected U.S. Baker Co., Ltd (BAKER) 2.313 telescoping tubes for use, can compensate tubing string at work Yin Wendu, pressure and other parameters variation and the tubing string that causes elongates or shortens, can eliminate the wriggling of its underpart instrument and improve the particularly force-bearing situation of tubing string lower tool of whole tubing string simultaneously.
Sliding sleeve 7 can be selected U.S. Supreme Being Si company (OTIS) difficult to understand 2.313 sliding sleeves for use, and the flow channel between oil pipe and the annular space can be provided.Open switch with steel wire operation, after clean-out service was finished, steel wire operation was closed it.
Plug-in type sealer 8 can be selected U.S. Baker Co., Ltd (BAKER) 4 for use " sealer, in the water injection string lower going-into-well after the desired depth, this plug-in type sealer and first order sand control packer top seal.
Can locate and insert sealed injection well downhole flow regulator seating nipple 9, utilize the reducing step in the completion tubular column, location, interlayer separation and sealing function are played in sealing location in the secondary sand control packer in whole water filling operation.After can dropping into from well head with the injection well downhole flow regulator of three layers of water nozzle, location and divide the sealing of three intervals in the injection well downhole flow regulator seating nipple makes respectively corresponding three water filling intervals of weep hole of three layers of water nozzle correspondence.
Inserter sealer II can select U.S. Baker Co., Ltd (BAKER) 2 for use
7/ 8in sealer, after the desired depth, this inserts sealer and the sealing of third level sand control packer in the water injection string lower going-into-well.
Seeing that Fig. 2 has " one threw three fens " injection well downhole flow regulators 10 of three layers of water nozzle as can be known among Fig. 1 can be by fishing head 13, T dish 14,16,22,24 and 32, sealing drum 15,23 and 31, adapter sleeve 17,21,25,29 and 37, water nozzle pressure cap 18,26 and 33, water nozzle 19,27 and 34, tap 20 and 28, spring pressure cap 35, compression spring 36, interstage sleeve 38 and guide way 39 orderly suit, and tightening screwed connection is the one composition.
See that Fig. 3 can locate slotting envelope formula injection well downhole flow regulator seating nipple 9 by upper and lower seating nipple 40 and 48, sealed tube pressure ring 41 and 45, T dish 42 and 44, sealed tube 43, spacer ring 46 and seating nipple joint ring 47 orderly suits among Fig. 1 as can be known, tightening screwed connection is that one is formed.
See Fig. 4 combination of injection well downhole flow regulator 10 (Fig. 2) and seating nipple 9 (Fig. 3) thereof among Fig. 1 as can be known: injection well downhole flow regulator 10 is sleeved in its seating nipple 9; At its water nozzle 19,27 and 34 corresponding sites water filling electronic grout flow meter or WG 49,51 and 53 can be housed respectively; There are first, second and the 3rd layer of water filling to export 50,52 and 54 respectively in its assembly top, middle part and lower end.
Claims (5)
1, a kind of offshore oilfield gravel sand prevention water injection well seperated layer water injection device, it is characterized in that: its device is a kind of " one threw three fens " separate layer water injection string, by telescoping tube, sliding sleeve, plug-in type sealer I, can locate insert sealed injection well downhole flow regulator seating nipple, can be with injection well downhole flow regulator, plug-in type sealer II, oil pipe with holes and the plug partial order suit of three layers of water nozzle, tightening screwed connection is that one is formed.
2, a kind of offshore oilfield gravel sand prevention water injection well seperated layer water injection device according to claim 1, it is characterized in that: its telescoping tube can be telescoping tube (6), its sliding sleeve can be sliding sleeve (7), its plug-in type sealer I can be plug-in type sealer (8), it can be located the sealed injection well downhole flow regulator seating nipple of insertion and can be seating nipple (9), it can be " one threw three fens " injection well downhole flow regulator (10) with the injection well downhole flow regulator of three layers of water nozzle, its plug-in type sealer II can be plug-in type sealer (11), and its oil pipe with holes can be oil pipe (12) and its plug partly can be plug part (55).
3, a kind of offshore oilfield gravel sand prevention water injection well seperated layer water injection device according to claim 2, it is characterized in that: " one threw three fens " injection well downhole flow regulator (10) can coil (14,16,22,24 and 32), sealing drum (15,23 and 31), adapter sleeve (17,21,25,29 and 37), water nozzle pressure cap (18,26 and 33), water nozzle (19,27 and 34), tap (20 and 28), spring pressure cap (35), compression spring (36), shelves covers (38) and guide way (39) suit in order by fishing head (13), T, and tightening screwed connection is the one composition.
4, a kind of offshore oilfield gravel sand prevention water injection well seperated layer water injection device according to claim 2, it is characterized in that: its seating nipple (9) can be by upper and lower seating nipple (40 and 48), sealed tube pressure ring (41 and 45), T dish (42 and 44), sealed tube (43), spacer ring (46) and the orderly suit of seating nipple joint ring (47), and tightening screwed connection is that one is formed.
5, a kind of offshore oilfield gravel sand prevention water injection well seperated layer water injection device according to claim 2, it is characterized in that: injection well downhole flow regulator (10) is sleeved in its seating nipple (9), at its water nozzle (19,27 and 34) corresponding site water filling electronic grout flow meter or WG (49,51 and 53) can be housed respectively; There are first, second and the 3rd layer of water filling to export (50,52 and 54) respectively in its combination body top, middle part and lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03257788 CN2625575Y (en) | 2003-06-04 | 2003-06-04 | Stratified waterflooding apparatus for gravel sand prevention water injection well of offshore oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03257788 CN2625575Y (en) | 2003-06-04 | 2003-06-04 | Stratified waterflooding apparatus for gravel sand prevention water injection well of offshore oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625575Y true CN2625575Y (en) | 2004-07-14 |
Family
ID=34254468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03257788 Expired - Lifetime CN2625575Y (en) | 2003-06-04 | 2003-06-04 | Stratified waterflooding apparatus for gravel sand prevention water injection well of offshore oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625575Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074602B (en) * | 2007-07-18 | 2010-10-13 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Stratified injection tubular pile |
| CN103573229A (en) * | 2012-07-24 | 2014-02-12 | 中国海洋石油总公司 | Open hole oil production technology and separated pipe string |
| CN106812506A (en) * | 2015-11-30 | 2017-06-09 | 中国石油天然气股份有限公司 | Separate-layer water injection string and using method |
| CN109184629A (en) * | 2018-08-30 | 2019-01-11 | 中国海洋石油集团有限公司 | A kind of selective sand control seperated layer water injection integral tubular column and its tripping in method |
| CN109538171A (en) * | 2018-12-14 | 2019-03-29 | 中国石油天然气股份有限公司 | Gravel packing device and gravel packing method |
-
2003
- 2003-06-04 CN CN 03257788 patent/CN2625575Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074602B (en) * | 2007-07-18 | 2010-10-13 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Stratified injection tubular pile |
| CN103573229A (en) * | 2012-07-24 | 2014-02-12 | 中国海洋石油总公司 | Open hole oil production technology and separated pipe string |
| CN103573229B (en) * | 2012-07-24 | 2016-12-21 | 中国海洋石油总公司 | A kind of bore hole DP technology and separation tubing string thereof |
| CN106812506A (en) * | 2015-11-30 | 2017-06-09 | 中国石油天然气股份有限公司 | Separate-layer water injection string and using method |
| CN109184629A (en) * | 2018-08-30 | 2019-01-11 | 中国海洋石油集团有限公司 | A kind of selective sand control seperated layer water injection integral tubular column and its tripping in method |
| CN109538171A (en) * | 2018-12-14 | 2019-03-29 | 中国石油天然气股份有限公司 | Gravel packing device and gravel packing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130604 Granted publication date: 20040714 |