CN2360595Y - Layered squeezing and blocking pipe column - Google Patents
Layered squeezing and blocking pipe column Download PDFInfo
- Publication number
- CN2360595Y CN2360595Y CN 98250535 CN98250535U CN2360595Y CN 2360595 Y CN2360595 Y CN 2360595Y CN 98250535 CN98250535 CN 98250535 CN 98250535 U CN98250535 U CN 98250535U CN 2360595 Y CN2360595 Y CN 2360595Y
- Authority
- CN
- China
- Prior art keywords
- packer
- adapter sleeve
- piston
- pressure release
- overcoat
- 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.)
- Expired - Fee Related
Links
- 230000000903 blocking effect Effects 0.000 title description 4
- 238000012856 packing Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000002981 blocking agent Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a crowded stifled tubular column of layering that oil field profile control, water shutoff were used. The packer comprises an upper packer and a lower packer, wherein the upper packer adopts a Y341-114 type, the lower packer adopts an improved Y341-114 type, an upper pressure relief balancing device and an oil pipe anchor are arranged at the upper part of the upper packer, and a pressure relief fixing sliding sleeve is arranged between the upper packer and the lower packer. The advantages of 1, simple structure, reliable and flexible setting and deblocking, 2, uniform entering of the plugging agent into the stratum, good perfection, no pollution to other layers, 3, safe lifting construction, no ash plug, 4, high pressure difference resistance and good sealing performance.
Description
The utility model relates to the layering that a kind of oil field profile control, water blockoff use and squeezes the plugging post.
At present in oil field development is produced, for improve between subterranean layer, contradiction in the layer, the control of raising water drive is employed with water drive control degree and is adopted cement to squeeze stifled or compoundization plugging technique, this technology mainly be to the well height ooze advance by leaps and bounds the layer and the well water layer carry out shutoff, but because this technology of enforcement does not have supporting instrument, thereby can not realize real layering, if adopt general squeeze note, not only can severe contamination interval up and down, and squeeze to block up and measure period of validity weak point even invalid after a little while, can only repeatedly repeat to squeeze and block up, construction period prolongation, difficulty increase, expense are raise.
The purpose of this utility model just provides a kind of layering and squeezes the plugging post, and it only carries out shutoff at squeeze note layer to be processed, and does not pollute other oil reservoir.
The purpose of this utility model is achieved in that layering squeezes the plugging post and is made up of upper and lower two-stage packer, and tubing anchor and last pressure release bascule are housed on the top of upper packer, is provided with between upper and lower packer and decides the pressure release sliding sleeve.
Last pressure release bascule is made up of top connection, overcoat, interior cover, adapter sleeve, and top connection is connected with sleeve thread, and overcoat, adapter sleeve and interior cover are fixed by shear pin, have relief hole on overcoat and adapter sleeve, are provided with lock ring between inside and outside cover.
Lower packet is by top connection, transfer bar, connector, excenter tube, innermost tube, packing element, piston, lower contact, adapter sleeve is formed, transferring the bar upper end is connected by pin with top connection, the lower end is threaded with innermost tube, connector hangs on the step of transferring bar, connector, excenter tube, piston head, lower contact, adapter sleeve is threaded, have relief hole on pipe and the adapter sleeve at heart, the lower end of adapter sleeve is provided with spacing head, the lower end screw thread of innermost tube is connected with fixed bar, the other end of fixed bar is fixed on the adapter sleeve by shear pin with ball seat, on the relief hole on the adapter sleeve, be fixed with packed-piston, on the innermost tube of packed-piston upper end, be provided with baffle ring by shear pin.
Layering is squeezed the plugging post and utilized the two-stage packer to stride to be stuck in and squeezed about the layer, then the squeeze note layer is carried out squeeze note and is provided with the corresponding protection device, thereby it has the following advantages: 1, simple in structure, seat, deblocking are reliably flexible; 2, to enter the stratum even for blocking agent, and degree of perfection is good, do not pollute other layer; 3, remove construction safety, do not stay the ash plug; 4, withstand voltage difference is high, good seal performance.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1: plugging post work schematic diagram is squeezed in layering;
Fig. 2: go up pressure release balance device structure schematic diagram;
Fig. 3: lower packet structural representation;
Fig. 4: Y341-114 type packer construction schematic diagram;
Fig. 5: decide pressure release shift sleeve structure schematic diagram;
Among the figure: 1-oil pipe, 2-sleeve pipe, 3-go up pressure release bascule, 4-tubing anchor,
5-upper packer, 6-decide pressure release sliding sleeve, 7-lower packet, 8-steel ball,
9-top connection, 10-overcoat, 11-interior cover, 12-lock ring, 13-shear pin,
14-adapter sleeve, 15-relief hole, 16-top connection, 17-pin, 18-transfer bar,
19-connector, 20-excenter tube, 21-packing element, 22-innermost tube, 23-piston,
24-piston head, 25-lower contact, 26-relief hole, 27-adapter sleeve, 28-baffle ring,
29-packed-piston, 30-shear pin, 31-fixed bar, 32-ball seat, 33-spacing head;
It is to utilize the two-stage packer to stride to be stuck in to be squeezed about the layer that the plugging post is squeezed in layering, suppresses from oil pipe then, make packer set after, again by deciding the pressure release sliding sleeve to squeeze note layer squeeze note blocking agent between the two-stage packer.The utility model is made up of upper and lower two-stage packer 5,7, as shown in Figure 1, what upper packer 5 adopted is the Y341-114 type, as shown in Figure 4, what lower packet 7 adopted is the modified of Y341-114 packer, as shown in Figure 3, it mainly connects joint and transfers bar in the upper end of Y341-114 type packer, connect pressure relief device and ball seat in its lower end.Between upper and lower packer 5,7, be provided with and decide pressure release sliding sleeve 6, decide pressure release sliding sleeve 6 as shown in Figure 5, the effect of deciding pressure release sliding sleeve 6 is after packer set, intensified pressure again, can open the passage of deciding pressure release sliding sleeve 6, inject blocking agent, pressure release bascule 3 and tubing anchor 4 are housed on the top of upper packer 5 to crowded blocking layer, tubing anchor 4 is to guarantee that the oil pipe tubing string is anchored on the casing wall, and last pressure release bascule 3 main effects are deblockings.Last pressure release bascule is made up of top connection 9, overcoat 10, interior cover 11, adapter sleeve 14, as shown in Figure 2, top connection 9 is threaded with overcoat 10, overcoat 10, adapter sleeve 14 and interior cover 11 are fixing by shear pin 13, on overcoat 10 and adapter sleeve 14, have relief hole 15, between inside and outside cover 11,10, be provided with lock ring 12.Lower packet is by top connection 16, transfer bar 18, connector 19, excenter tube 20, innermost tube 22, packing element 21, piston 23, piston head 24, lower contact 25, adapter sleeve 27 is formed, as shown in Figure 3, transferring bar 18 upper ends is connected by pin 17 with top connection 16, the lower end is threaded with innermost tube 22, connector 19 hangs on the step of transferring bar 18, connector 19, excenter tube 20, piston head 24, lower contact 25, adapter sleeve 27 is threaded, be with packing element 21 and piston 23 on the excenter tube 20, manage at heart 22 and adapter sleeve 27 on have relief hole 26, the lower end of adapter sleeve 27 is provided with spacing 33, the lower end screw thread of innermost tube 22 is connected with fixed bar 31, the other end of fixed bar 31 is fixed on the adapter sleeve 27 by shear pin 30 with ball seat 32, on the relief hole on the adapter sleeve 27 26, be fixed with packed-piston 29, on the innermost tube 22 of packed-piston 29 upper ends, be provided with baffle ring 28 by shear pin 30.
Be applied to seal up lower floor with the utility model below, crowded intermediate layer is that example illustrates how the crowded plugging post of layering works: at first the instrument that is up to the standards is gone into the well by tubing string configuration shown in Figure 1, after putting in place, tubing string installs well head, drop into steel ball 8, make 8 of steel balls on the ball seat on the lower packet 32, suppress from oil pipe, when pressure during less than 2.5MPa, ball seat 32, last pressure release bascule 3, decide 6 sealings of pressure release sliding sleeve, tubing anchor 4 grapplings, on, lower packet is realized initial sealing, when pressure during greater than 2.5MPa, decide to move on the sliding sleeve in the pressure release sliding sleeve 6, liquid enters crowded blocking layer by the duct of deciding in the pressure release sliding sleeve, on, following two-stage packer increases with pressure and continues sealing, bears high pressure, continue to squeeze into blocking agent, blocking agent is entered continuously squeeze blocking layer realization shutoff, squeeze after stifled the finishing, tell for preventing that oil reservoir is counter, shut the oil pipe gate, pressurize is waited and is coagulated.During deblocking, the emptying oil pipe, the pressure diffusion, the two-stage packer reclaims packing element and deblocking automatically, when liquid level during not at well head, then have inside and outside the oil pipe greater than 2.5MPa pressure reduction and exist, at this moment packer or tubing anchor are still in running order and can not deblocking, at this moment descend the drain line tubing string, top connection 9 and overcoat 10 in the last pressure release bascule 3 move down, and shear pin 13 is cut off, the relief hole 15 alignment pressure releases on overcoat 10 and the adapter sleeve 14, simultaneously lower packet transfer bar 18 and innermost tube 22 moves down, shear pin 30 on packed-piston 29 and the fixed bar 31 is cut off innermost tube 22 pressure release of aliging with relief hole 26 on the adapter sleeve 27, at this moment whole tubing string oil jacket balance pressure release deblocking, mention tubing string on getting final product, finish and squeeze stifled construction.
Claims (3)
1, the crowded plugging post of a kind of layering is made up of upper and lower two-stage packer (5), (7), it is characterized in that: between upper and lower packer (5), (7), be provided with and decide pressure release sliding sleeve (6), be connected with pressure release bascule (3) and tubing anchor (4) on the top of upper packer (5).
2, the plugging post is squeezed in layering according to claim 1, it is characterized in that: go up the pressure release bascule and form by top connection (9), overcoat (10), interior cover (11), adapter sleeve (14), top connection (9) is threaded with overcoat (10), overcoat (10), adapter sleeve (14) and interior cover (11) are fixing by shear pin (13), on overcoat (10) and adapter sleeve (14), have relief hole (15), outside, be provided with lock ring (12) between the interior cover (10), (11).
3, the plugging post is squeezed in layering according to claim 1, it is characterized in that: lower packet is by top connection (16), transfer bar (18), connector (19), excenter tube (20), packing element (21), innermost tube (22), piston (23), piston head (24), lower contact (25), adapter sleeve (27) is formed, transferring bar (18) upper end is connected by pin (17) with top connection (16), the lower end is threaded with innermost tube (22), connector (19) hangs on the step of transferring bar (18), connector (19), excenter tube (20), piston head (24), lower contact (25), adapter sleeve (27) is threaded, have relief hole (26) on pipe (22) and the adapter sleeve (27) at heart, the lower end of adapter sleeve (27) is provided with spacing head (33), the lower end screw thread of innermost tube (22) is connected with fixed bar (31), the other end of fixed bar (31) is fixed on the adapter sleeve (27) by shear pin (30) with ball seat (32), relief hole (26) on adapter sleeve (27) is gone up and is fixed with packed-piston (29) by shear pin (30), is provided with baffle ring (28) on the innermost tube (22) of packed-piston (29) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98250535 CN2360595Y (en) | 1998-12-17 | 1998-12-17 | Layered squeezing and blocking pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98250535 CN2360595Y (en) | 1998-12-17 | 1998-12-17 | Layered squeezing and blocking pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2360595Y true CN2360595Y (en) | 2000-01-26 |
Family
ID=33994992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98250535 Expired - Fee Related CN2360595Y (en) | 1998-12-17 | 1998-12-17 | Layered squeezing and blocking pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2360595Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140900A (en) * | 2011-05-17 | 2011-08-03 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Design method of expanding type anti-sticking packer |
| CN107701143A (en) * | 2016-08-09 | 2018-02-16 | 中国石油化工股份有限公司 | A kind of multi-section multi-layer sealing skill devices and methods therefor based on one-trip string |
| CN108412452A (en) * | 2018-03-15 | 2018-08-17 | 陕西航天德林科技集团有限公司 | A kind of packer and its application method |
| CN109469474A (en) * | 2018-12-05 | 2019-03-15 | 中国矿业大学(北京) | Based on the lower device and method for measuring multiple seam gas pressure simultaneously to layer-through drilling |
-
1998
- 1998-12-17 CN CN 98250535 patent/CN2360595Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140900A (en) * | 2011-05-17 | 2011-08-03 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Design method of expanding type anti-sticking packer |
| CN102140900B (en) * | 2011-05-17 | 2014-02-12 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Design method of expanding type anti-sticking packer |
| CN107701143A (en) * | 2016-08-09 | 2018-02-16 | 中国石油化工股份有限公司 | A kind of multi-section multi-layer sealing skill devices and methods therefor based on one-trip string |
| CN107701143B (en) * | 2016-08-09 | 2019-08-30 | 中国石油化工股份有限公司 | A kind of multi-section multi-layer sealing skill devices and methods therefor based on one-trip string |
| CN108412452A (en) * | 2018-03-15 | 2018-08-17 | 陕西航天德林科技集团有限公司 | A kind of packer and its application method |
| CN108412452B (en) * | 2018-03-15 | 2024-04-02 | 陕西航天德林科技集团有限公司 | Packer and application method thereof |
| CN109469474A (en) * | 2018-12-05 | 2019-03-15 | 中国矿业大学(北京) | Based on the lower device and method for measuring multiple seam gas pressure simultaneously to layer-through drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |