CN2707947Y - Rotary production well head assembly motivated by external hydraulic cylinder - Google Patents
Rotary production well head assembly motivated by external hydraulic cylinder Download PDFInfo
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- CN2707947Y CN2707947Y CN 200420064006 CN200420064006U CN2707947Y CN 2707947 Y CN2707947 Y CN 2707947Y CN 200420064006 CN200420064006 CN 200420064006 CN 200420064006 U CN200420064006 U CN 200420064006U CN 2707947 Y CN2707947 Y CN 2707947Y
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- rotation
- worm shaft
- fluid cylinder
- worm
- rotary
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Abstract
The utility model relates to a rotary production well head assembly motivated by external hydraulic cylinder apparatus which comprises a driving device composed of a liquid cylinder, a ratchet pawl mechanism, a worm shaft and a rotary oil pipe hanger integrated with a worm-gear. The worm shaft is engaged with the worm-gear on the rotary oil pipe hanger. The rotary oil pipe hanger is supported on the bearing. The bearing is arranged in the casing. One end of the worm shaft is provided with the liquid cylinder. A plunger in the liquid cylinder is connected with the ratchet pawl mechanism to make the worm shaft rotate. The motive power source of the liquid cylinder is the pressure liquid in the oil pumping well. The other end of the worm shaft is exposed. A worm shaft which can be manually operated is arranged on the other end of the worm shaft. Compared with other automatic rotary oil pipe hanger, the rotary production well head assembly motivated by external hydraulic cylinder apparatus has simple structure, reliable work and convenient maintenance. The rotary production well head assembly motivated by external hydraulic cylinder apparatus can be used to improve the technology of the existing manual rotary well head device and realizes the automatic rotation goal.
Description
Affiliated technical field
The utility model belongs to oil exploration equipment, the oil recovery rotation wellhead assembly that particularly a kind of external fluid cylinder promotes.
Background technology
For reducing cost, account for the soil less, oil exploitation had adopted the inclined shaft mode to recover the oil already in a large number, and the thing followed is to produce eccentric wear between lower curved section sucker rod and oil pipe, has reduced the application life of flow string.
China has the method that is used in the slow rotation pipeline post of well head to prevent eccentric wear already, and the national patent that relates to this respect is existing multinomial, summary is got up, and hand is arranged, mechanical automatic rotary, three kinds of hydraulic rotary.Be typically national patent bulletin on April 16th, 2003 especially, the wellhead assembly of the hydraulic drive type rotation pipeline of patent No. ZL02214818.3.This device is except this common trait of the tubing hanger of worm and gear rotating support on bearing that adopts various rotation well heads and all adopt, the top grafting that mainly is tubing hanger is combined with sliding sleeve, and there is the ratchet and pawl arrangement of return spring and moving worm screw rotation of generation the sliding sleeve outside.When the oil pumper upstroke, slide under the interior fluid pressure effect of oil pipe, up and conducting oil discharge passage drives ratchet and pawl arrangement; Spring reset when the oil pumper down stroke so repeatedly, makes worm screw produce interrupted rotation.
Weak point in the technique scheme is: 1. its annular slides over the content of wax, contains sand and contain under the situation of mineralising formation water and be easy to blocked portion, and can't operate as normal, in case break down, because be enclosed in the housing, it is again multi-ringed member etc., overhaul very difficult, could operation after needing oil pumper to stop production for this reason; In each oil field the rotation wellhead assembly of a large amount of manual rotary worms that use can't use technique scheme and undergo technological transformation.
Summary of the invention
The purpose of this utility model is exactly the problem that exists at above-mentioned technology, the oil recovery rotation wellhead assembly that provides a kind of external fluid cylinder to promote.
The scheme that the utility model solves its technical problem is: by fluid cylinder, ratchet and pawl arrangement, worm shaft with make holistic rotation pipeline extension etc. with worm gear and form transmission mechanism, worm shaft is meshed with the worm gear that rotation pipeline hangs up, rotation pipeline is hung and is bearing on the bearing, bearing is cased, it is characterized in that: the end of worm screw is equipped with fluid cylinder, piston in the fluid cylinder is connected with ratchet and pawl arrangement, and worm screw is rotated, and back-moving spring is equipped with on the top of piston.The turnover oil pipe of fluid cylinder is communicated with the rotation transformation pipe.The other end of worm shaft exposes, and has on it for manual outer six sides.Sliding fit between rotation transformation pipe bottom and rotation pipeline are hung, and there is seal to seal, the flow tee that is being threaded on rotation transformation pipe top, the Horizontal Exit end of flow tee is equipped with adjustable one way valve, and the vertical direction of flow tee is installed with polished rod sealer.
The beneficial effects of the utility model are: 1. compared with prior art, this device by the built-in external that changes into, and forms composite member with all damageable zones, can place under repair or replacing under oil well without stop produces or stops production in short-term.2. external fluid cylinder, rotation transformation pipe, ratchet and pawl arrangement and adjustable single-phase valve etc., requirement on machining accuracy is not high, installs and overhaul very convenient.3. external fluid cylinder, ratchet and pawl arrangement and adjustable single-phase valve can be conveniently used for transforming the existing artificial rotation wellhead assembly that is widely used in each oil field, make it become the wellhead for production of the automatic rotation of hydraulic drive.4. the external fluid cylinder can not stop production because of blocked portion causes oil well.5. adjustable single-phase valve, at this moment the back pressure of external transport pipeline is in low-pressure state in the well head pipe simultaneously to the adverse effect of deep well pump when having blocked the oil pumper down stroke, helps fluid cylinder and resets, and guarantees the ratchet and pawl arrangement reliable operation.
Description of drawings
Below in conjunction with drawings and Examples utility model is described further.
Accompanying drawing 2 is top views of accompanying drawing 1.
Among the figure, the 1-polished rod; 2-light root sealed packing box; The 3-flow tee; The adjustable one way valve of 4-; 5-rotation transformation pipe; The 6-pressure cap; The 7-seal; The 8-rotation pipeline is hung; The 9-bearing; The 10-shell; The 11-fluid cylinder; The 12-back-moving spring; The 13-piston; 14-fluid cylinder turnover oil pipe; The 15-ratchet and pawl arrangement; The 16-worm shaft; The 17-worm shaft is manually held.
The specific embodiment
In accompanying drawing 1, rotation pipeline is hung (8) and is bearing on the bearing (9), and bearing (9) seat is in shell (10).Rotation pipeline is hung worm gear and transmission worm shaft (16) engagement on (8).Ratchet and pawl arrangement (15) is installed on the worm shaft (16), and ratchet and pawl arrangement (15) connects with piston (13); Piston (13) is contained in the fluid cylinder (11), and piston top is equipped with back-moving spring (12); Turnover oil pipe (14) on the fluid cylinder is communicated with rotation transformation pipe (5), and rotation transformation pipe (5) is contained in rotation pipeline and hangs in (8), and rotation transformation pipe (5) and rotation pipeline are slidingly matched between hanging, and seal (7) is housed between them; Rotation transformation pipe (5) upper end connects with well head flow tee (3); There are turnover oil pipe (14) and oil cylinder (11) UNICOM in the side of rotation transformation pipe (5).There is adjustable one way valve (4) in the horizontal exit of well head flow tee (3); Polished rod stuffing box (2) is equipped with in the upper end of well head flow tee, and the polished rod bottom is connecting the rod string of deep well oil pumping.
The utility model is work like this: the bottom of rotation pipeline extension (8) is connecting the tubing string of down-hole, polished rod sealer (2) is equipped with in flow tee (3) upper end, when the oil pumper band the up oil pumping of polished rod (1), pressure in the tubing string raises, liquid enters in the fluid cylinder (11) by turnover oil pipe (14), the piston (13) that pressure promotes in the fluid cylinder is up, drive ratchet and pawl arrangement (15) rotation, make little angle of worm shaft (16) rotation, and then the tubing string in tubing hanger (8) and the pit shaft is rotated together.Simultaneously, compression reseting spring when piston (13) is up.When oil pumper was descending, ball-and-seat (4) had stoped the back pressure in the outer petroleum pipeline, makes in the well head oil pipe to be in low-pressure state, and back-moving spring (12) resets piston (13).The so continuously up oil pumping of oil pumper, descending piston reset intermittently rotates the tubing string in the pit shaft.Because the outer defeated back pressure difference of each oil well, when outer defeated back pressure was very little, the pressure when oil pumper is up in the oil pipe was less, and the piston stroking upward difficulty can make tubing pressure obtain rising this moment by the opening pressure of heightening adjustable one way valve.
Claims (4)
1. wellhead assembly is rotated in the oil recovery of an external fluid cylinder promotion, by fluid cylinder, ratchet and pawl arrangement, worm shaft with make holistic rotation pipeline extension etc. with worm gear and form transmission mechanism, the worm gear engagement that worm shaft and rotation pipeline hang up, rotation pipeline is hung and is bearing on the bearing, bearing is cased, it is characterized in that: worm shaft one end is equipped with fluid cylinder, piston in the fluid cylinder is connected with ratchet and pawl arrangement, worm screw is rotated, back-moving spring is equipped with in the piston upper end, the other end of worm shaft exposes, and has on it to supply manual outer six sides.
2. the oil recovery rotation wellhead assembly that a kind of external fluid cylinder according to claim 1 promotes, it is characterized in that: the liquid in-out pressure pipe of fluid cylinder is communicated with the rotation transformation pipe.
3. the oil recovery rotation wellhead assembly that a kind of external fluid cylinder according to claim 1 promotes, it is characterized in that: the flow tee that is being threaded on the rotation transformation pipe, flow tee exit are being adorned adjustable single current valve.
4. the oil recovery rotation wellhead assembly that a kind of external fluid cylinder according to claim 1 promotes, it is characterized in that: rotation transformation pipe and rotation pipeline are equipped with Yx type seal between hanging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064006 CN2707947Y (en) | 2004-05-12 | 2004-05-12 | Rotary production well head assembly motivated by external hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064006 CN2707947Y (en) | 2004-05-12 | 2004-05-12 | Rotary production well head assembly motivated by external hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2707947Y true CN2707947Y (en) | 2005-07-06 |
Family
ID=34852109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420064006 Expired - Fee Related CN2707947Y (en) | 2004-05-12 | 2004-05-12 | Rotary production well head assembly motivated by external hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2707947Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422036A (en) * | 2015-05-25 | 2016-03-23 | 易鲁川 | Sealing device for steam-injecting oil-pumping well |
| CN107829703A (en) * | 2017-12-04 | 2018-03-23 | 陕西华耀石油设备工程有限公司 | A kind of multifunctional oil wellhead |
-
2004
- 2004-05-12 CN CN 200420064006 patent/CN2707947Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422036A (en) * | 2015-05-25 | 2016-03-23 | 易鲁川 | Sealing device for steam-injecting oil-pumping well |
| CN107829703A (en) * | 2017-12-04 | 2018-03-23 | 陕西华耀石油设备工程有限公司 | A kind of multifunctional oil wellhead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XI AN DONGXIN OIL EQUIPMENT FACTORY Free format text: FORMER OWNER: GONG WEIAN Effective date: 20050923 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050923 Address after: 710600 green industrial park, Lintong Economic Development Zone, Shaanxi, Xi'an Patentee after: Dongxin Petroleum Equipment Factory, Xi'an Address before: 710021 Shaanxi province Xi'an Weiyang Changqing prosperous Park District 1 District 14 Building 2 unit 301 Patentee before: Gong Weian |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050706 |