CN1667237B - Tubing anchor - Google Patents
Tubing anchor Download PDFInfo
- Publication number
- CN1667237B CN1667237B CN 200410039801 CN200410039801A CN1667237B CN 1667237 B CN1667237 B CN 1667237B CN 200410039801 CN200410039801 CN 200410039801 CN 200410039801 A CN200410039801 A CN 200410039801A CN 1667237 B CN1667237 B CN 1667237B
- Authority
- CN
- China
- Prior art keywords
- cone
- oil
- pipe
- slips
- sealing drum
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims description 39
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003129 oil well Substances 0.000 abstract description 6
- 238000005086 pumping Methods 0.000 abstract description 5
- 238000004873 anchoring Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Abstract
The invention relates to a tubing anchor that is made up of up joint, inner pipe, cone, slips, sealed canister, moving prevented dowel, down joint. When the tubing putting down to the oil well to pump oil, the pressure of inner pipe is increased, liquid pressure would be transferred from inner pipe to circle space formed by sealed canister and inner pipe. The sealed pipe would cause upward thrust. When the upward thrust is greater than the bearing capability of moving prevented dowel, the dowel would be cut off, and the sealed canister would continue moving upward, the distance between cone and the canister would be shorten. Slips would open anchor to fix on the thimble. And the oil pumping column would be anchoring spud. When the oil well is operating oil lifting pipe, rotating oil pipe and the inner pipe would rotate, but under the effect of the slips, the cone could not rotate. Thus, oil drain and disanchor would be realized. The other tools under the down joint have no effect on the cone, and the cone does not bear axial force. When the oil well is rotating tubing, cone would be easily to revolve on the screw on inner pipe. Hence, oil drain and disanchor would be easily to realize.
Description
One, technical field
Tubing anchor belongs to the engineering goods that the oil field oil recovery technique is used.
Two, background technology
The patent No. is the rotatable tubing anchor of 01266815.x, there is not oil draining function, the patent No. is 02230995.0 1 kinds of Oil pipe anchoring and oil leakage devices, connect cone under the draining pipe nipple, connect central tube under the cone, connect other downhole tool under the central tube, so the draining pipe nipple connects screw thread with cone and bears axial force, therefore, when needs draining rotation pipeline, the rotation difficulty, even can not rotate, need the operator to take certain measure just might reach the order of draining at the scene, and its sealing position is many, poor reliability.
Three, summary of the invention
The objective of the invention is to design a kind of tubing anchor, make its can be when rotation pipeline draining, and when rotation pipeline, do not need to take special measure just can realize draining smoothly, and the sealing position is few, the reliability height.
The object of the present invention is achieved like this: it is made up of top connection, interior pipe, cone, slips, sealing drum, anti-untie-sell nail, lower contact.Top connection lower thread and interior pipe top thread connection, interior pipe lower thread and lower contact top thread connection, pipe top screw thread in cone is threaded into, cone is under the top connection, certain distance is arranged between top connection and the cone, manage on the lower thread in internal sleeve is contained on the sealing drum, internal sleeve is contained in the lower contact outside under the sealing drum, slips is between cone and the sealing drum, slips top is in the cone slip groove, the slips bottom is in outside slips bracket on the sealing drum, and anti-untie-sell nail is connected in sealing drum in the lower contact, makes sealing drum, slips is inertia when going into the well.
When tubing anchor of the present invention is gone into the well the back oil pumping with oil pipe, interior pipe pressure raises, hydraulic pressure imports in the annular space of sealing drum and the formation of interior pipe in interior pipe, make sealing drum produce upwards thrust, when last thrust was followed closely ability to bear greater than anti-untie-sell, anti-untie-sell nail was cut off, sealing drum is up, distance between cone and the sealing drum shortens, and slips opens under the cone effect and is anchored on the sleeve pipe, and pumping pipe string is anchored.When oil pipe is carried in the oil well operation, rotation pipeline, pipe rotation in making, under the slips effect, cone is not rotated, thereby produces relative motion between the cone of making and the interior pipe, under the hydraulic action in interior pipe, sealing drum is up thereupon, behind the up certain altitude of sealing drum, lower contact is left in inside under the sealing drum, pipe and sleeve pipe UNICOM in making, thus realize draining, behind the draining, oil pipe, casing pressure balance, sealing drum is no longer up, slips leaves sleeve pipe and regains, and realizes disanchoring, and oil pipe can propose smoothly.
Prevent that sealing drum, slips inactive way when going into the well from also can take other multiple way except that adopting anti-untie-sell nail, as adopting spring etc.
The invention has the beneficial effects as follows: other instrument under the lower contact does not act on the cone, and cone is not born axial force, and when oil well operation rotation pipeline, cone screws on the screw thread of portion easily on inner pipe, can realize draining smoothly, disanchor.
Four, description of drawings
Accompanying drawing is the structure chart of the embodiment of the invention.
Five, the specific embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described:
As shown in the figure, the 1st, top connection, the 2nd, interior pipe, the 3rd, cone, the 4th, slips, the 5th, sealing drum, the 6th, anti-untie-sell nail, the 7th, lower contact.Be that the present invention is made up of top connection 1, interior pipe 2, cone 3, slips 4, sealing drum 5, anti-untie-sell nail 6, lower contact 7.Top connection 1 lower thread and interior pipe 2 top thread connection, interior pipe 2 lower thread and lower contact 7 top thread connection, pipe 2 top screw threads in cone 3 is threaded into, cone 3 is under the top connection 1, between top connection 1 and the cone 3 certain distance is arranged, manage on 2 lower thread in internal sleeve is contained on the sealing drum 5,5 times internal sleeve of sealing drum are contained in lower contact 7 outsides, slips 4 is between cone 3 and the sealing drum 5, slips 4 tops are in cone 3 slip grooves, slips 4 bottoms are in outside slips bracket on the sealing drum 5, and anti-untie-sell nail 6 is connected in sealing drum 5 in the lower contact 7, makes sealing drum 5, slips 4 inertia when going into the well.
When tubing anchor of the present invention is gone into the well the back oil pumping with oil pipe, interior pipe 2 pressure raise, hydraulic pressure imports in the annular space of sealing drum 5 and 2 formation of interior pipe in interior pipe 2, make sealing drum 5 produce upwards thrust, when last thrust was followed closely 6 ability to bears greater than anti-untie-sell, anti-untie-sell nail 6 was cut off, sealing drum 5 is up, distance between cone 3 and the sealing drum 5 shortens, and slips 4 opens under cone 3 effects and is anchored on the sleeve pipe, and pumping pipe string is anchored.When oil pipe is carried in the oil well operation, rotation pipeline, pipe 2 rotations in making, under slips 4 effects, cone 3 is not rotated, and produces relative motion thereby make between cone 3 and the interior pipe 2, under the hydraulic action in interior pipe 2, sealing drum 5 is up thereupon, and behind sealing drum 5 up certain altitudes, lower contact 7 is left in 5 times inside of sealing drum, pipe 2 and sleeve pipe UNICOM in making, thereby the realization draining, behind the draining, oil pipe, casing pressure balance, sealing drum 5 is no longer up, slips 4 leaves sleeve pipe and regains, and realizes disanchoring, and oil pipe can propose smoothly.
Claims (1)
1. tubing anchor, by top connection (1), interior pipe (2), cone (3), slips (4), sealing drum (5), anti-untie-sell nail (6), lower contact (7) is formed, top connection (1) lower thread and interior pipe (2) top thread connection, interior pipe (2) lower thread and lower contact (7) top thread connection, cone (3) is under the top connection (1), sealing drum (5) is gone up internal sleeve and is contained on interior pipe (2) lower thread, sealing drum (5) internal sleeve down is contained in lower contact (7) outside, slips (4) is between cone (3) and the sealing drum (5), anti-untie-sell nail (6) is connected in sealing drum (5) in the lower contact (7), and it is characterized in that: described cone (3) is threaded into interior pipe (2) top screw thread; Between described top connection (1) and cone (3), certain distance is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410039801 CN1667237B (en) | 2004-03-14 | 2004-03-14 | Tubing anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410039801 CN1667237B (en) | 2004-03-14 | 2004-03-14 | Tubing anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1667237A CN1667237A (en) | 2005-09-14 |
| CN1667237B true CN1667237B (en) | 2010-04-28 |
Family
ID=35038501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410039801 Expired - Lifetime CN1667237B (en) | 2004-03-14 | 2004-03-14 | Tubing anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1667237B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4237980A (en) * | 1979-03-15 | 1980-12-09 | R & C Machine Devon Ltd. | Check valve for fluid-producing wells |
| CN2264804Y (en) * | 1995-06-01 | 1997-10-15 | 新疆石油管理局油田工艺研究所 | Automatic anchor with pumping |
| CN2517869Y (en) * | 2001-10-24 | 2002-10-23 | 卢继洪 | Rotatable tubing anchor |
| CN2635894Y (en) * | 2003-06-20 | 2004-08-25 | 卢继洪 | Anchor for oil pipe |
-
2004
- 2004-03-14 CN CN 200410039801 patent/CN1667237B/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4237980A (en) * | 1979-03-15 | 1980-12-09 | R & C Machine Devon Ltd. | Check valve for fluid-producing wells |
| CN2264804Y (en) * | 1995-06-01 | 1997-10-15 | 新疆石油管理局油田工艺研究所 | Automatic anchor with pumping |
| CN2517869Y (en) * | 2001-10-24 | 2002-10-23 | 卢继洪 | Rotatable tubing anchor |
| CN2635894Y (en) * | 2003-06-20 | 2004-08-25 | 卢继洪 | Anchor for oil pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1667237A (en) | 2005-09-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170407 Address after: 257024 Shandong Road, Dongying, Qingdao, No. 205, Shengli Road, oil equipment Limited by Share Ltd Patentee after: SHENGLI FANLAND OIL EQUIPMENT CO.,LTD. Address before: 257051 Dongying Shengli oil production factory, 1-667, Shandong Patentee before: Bai Xia |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100428 |
|
| CX01 | Expiry of patent term |