CN2532238Y - Hydraulic ground hole pipe lift - Google Patents
Hydraulic ground hole pipe lift Download PDFInfo
- Publication number
- CN2532238Y CN2532238Y CN 01251073 CN01251073U CN2532238Y CN 2532238 Y CN2532238 Y CN 2532238Y CN 01251073 CN01251073 CN 01251073 CN 01251073 U CN01251073 U CN 01251073U CN 2532238 Y CN2532238 Y CN 2532238Y
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- cylinder body
- bearing flange
- working rod
- lifter
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Abstract
Disclosed is a hydraulic ground well pipe lifter, relating to an oil-extraction mechanical component in an oil field, in particular to a special tool for sandblast and slotting by water force during the production of crude oil. The lifter can radically overcome the disadvantages that the real-time monitoring of the original water force slotting tool can not be realized. The technical points of the utility model are as follows: the lifter is a combination of a lifting device and a matching hydraulic pump station; the lifting device is arranged at the mouth of the well, consisting of a bearing flange 1, a straight-through piston working rod 2, a cylinder body 3 and a base 4; wherein the straight-through piston working rod 2 and the piston on the working rod are arranged in the cylinder body 3; the cylinder 3 is supported by the base 4; the bearing flange 1 is arranged at the upper end of the straight-through piston working rod 2; a operational well pipe is threaded through a through hole of the straight-through piston working rod and is supported by the bearing flange and fixed by a jaw; a sandblast mouth which has a ball seat and a seal steel ball is arranged at the lowest part of the operational well pipe; the matching pump station is communicated with the cavity A of the cylinder body of the lifting device through a high-pressure rubber tube and a quick coupling.
Description
Technical field
Fluid pressure type ground well casing lifter relates to a kind of oil field oil recovery machiner workpiece, particularly relates in a kind of crude oil production, carries out the sandblast special tool of slot of down-hole formation waterpower.
Background technology
When the oil field oil exploitation enters stage middle and later periods, adopt High-Pressure Water to mix the quartzy grains of sand and on underground well casing and adjacent stratum thereof, cut slotted hole (hydraulic slotted liner technique), to increase the method increase oil well output that well casing connects permeability formation, be tentative yield-increasing technology.Carrying out the hydraulic slotted liner technique complete equipment comprises the high pressure pump truck, mixes husky car, water-tank lorry and hydraulic slotted liner technique instrument.According to production engineering specifications, mouth is sandblasted in the down-hole of hydraulic slotted liner technique instrument must be with the motion of 5mm/min speed speed stabilizing, stroke 200mm/40min, and when live load changes in 10 ~ 50 tons of scopes, speed stabilizing error＜2%.At present, hydraulic slotted liner technique generally adopts the sandblast translational speed of mouth of a kind of downhole tool control hydraulic slotted liner technique of setting up cutting speed with the throttle valve control spillway discharge, but because setting is apart from several kms in the face of land, be subjected to ground temperature, sticky crude oil, factor affecting such as silt, the rate of breakdown of this cutting speed control tool is very high, and every mouthful of well is according to technological design, generally will be at different well depths position cutting 8 ~ 20 roads infiltration seam, after each instrument is gone into the well, ground can't in time predict the situation of downhole tool, the fault of downhole tool mainly embodies 2 points: 1, mobile piston is return correctly, cause silt carrying flow can not on well casing, cut out slotted hole, can only bombard a bit, after the stratum is subjected to the cavity of water impact formation to reach certain depth, because the effect that obstructs that refluxes, impact force of water flow will be refluxed counteracting and do not played dissection.2, move down excessive velocities or slow excessively: (1) moves down excessive velocities, and it is not enough that the current that sandblast can not be severed well casing and stratum or the slot degree of depth, can not form effective slit; (2) translational speed is slow excessively, at first be to cause equally to reflux to obstruct phenomenon, secondly, the operating personnel is according to time decision underground work stroke, translational speed causes the down-hole not form the stratum slot of regulation excessively slowly, and the operating personnel thinks and fulfils assignment, causes the down-hole can not form the consequence in effective slit equally.
Owing to have above-listed shortcoming, in the past few years, less than 30%, cause the waste of petroleum resources and a large amount of human and material resources with volume increase success rate behind the underground hydraulic slotted liner technique tool operation.
Technology contents
The purpose of this utility model is to overcome the above-mentioned shortcoming that existing hydraulic slotted liner technique instrument exists, and a kind of fluid pressure type ground well casing lifter that can accurately implement underground hydraulic slotted liner technique is provided.
The purpose of this utility model is achieved in that accompanying drawings is as follows:
Fluid pressure type ground well casing lifter is to be combined by lifting appliance and supporting hydraulic power unit, lifting appliance is contained in the well head place, it is by load-bearing flange 1, straight pistons work bar 2, cylinder body 3, base 4 constitutes, straight pistons work bar 2 and on piston be installed in the cylinder body 3, base 4 supports cylinder body 3, load-bearing flange 1 is equipped with in straight pistons work bar 2 upper ends, the operation well casing passes through the through hole of straight pistons work bar, fix by 1 support of load-bearing flange and by slips, the mouth that sandblasts is contained in the foot of operation well casing, sandblasting has ball seat and sealed steel ball 5 on the mouth body, and supporting hydraulic power unit communicates with A chamber in the lifting appliance cylinder body by high-pressure rubber pipe and snap joint.
The well casing lifter that the utility model provides is in the hydraulic slotted liner technique operation process; the functional relation of lifting stroke and activity duration is under operating personnel's the monitoring all the time; the operation stroke can be measured in good time; if device lifting speed generation deviation can in time be revised; travel speed and hydraulic slotted liner technique system independence; fracturing unit truck is shut down does not midway influence the slot stroke, has fundamentally overcome the shortcoming of former down-hole waterpower splitting tool.
Description of drawings
Fig. 1 is the structural representation of lifting appliance;
Fig. 2 is one of application example of the present utility model.
Among the figure: 1. the load-bearing flange 2. straight pistons work bars 3. cylinder bodies 4. bases 5. sealed steel balls 6. mouth 7. operation well casings 8. straight well head lifting appliances 9. that sandblast connect high-pressure rubber pipes 10. supporting hydraulic power units
The specific embodiment
Further specify particular content of the present utility model below in conjunction with the accompanying drawing illustrated embodiment.During work, load-bearing flange 1 is used for installing the well casing stationary slip, and bears whole well casing weight and operating pressure load transfer and give through-type pistons work bar 2, and through-type pistons work bar 2 can be moved up and down in cylinder body 3 by oily current control.When the pressure oil from supporting hydraulic power unit was transported to the A chamber of through-type pistons work bar 2, through-type pistons work bar 2 moved up, and moved up synchronously thereby drive connected operation well casing 7; When the A chamber of through-type pistons work bar 2 and return line were connected, through-type pistons work bar 2 moved down return under the effect of well casing gravity.Base 4 supports cylinder body 3.And guarantee simultaneously not collide when through-type pistons work bar 2 falls after rise with well head.One of specific embodiment of the present utility model (consulting Fig. 2): getting technical data is: specified lifting weight: 50 tons, rated operating pressure 16Mpa, operation tubing allow to pass through maximum gauge: φ 90mm, effectively impulse stroke: 0 ~ 210mm.The technical data of supporting hydraulic power unit is: rated operating pressure 16Mpa, and the nominal operation flow is set up scope: 0 ~ 375mL/min, the set flow precision of steady current: ± 1%, working method: continuously.When carrying out the hydraulic slotted liner technique operation, through-type well head lifting appliance 8 is placed in treats on the operation oil well mouth mouth 6 that sandblasts to be installed in operation well casing 7 bottom, operation well casing 7 is passed by root from through-type pistons work bar 2 intermediate throughholes be connected to specific length.After the magnetic orientation, with slips fixed operation well casing 7.Then with high-pressure rubber pipe by snap joint, through-type well head lifting appliance 8 is connected with supporting hydraulic power unit 10, start supporting hydraulic power unit 10 to through-type well head lifting appliance 8 input service fluid, measure the rate of climb of through-type well head lifting appliance 8 lifting operation well casings 7 with metering outfit, compare with technological requirement,, flow quantity is regulated with accurate flow speed control valve if any error, up to reaching technical requirements, can formally begin the hydraulic slotted liner technique operation by resetting means.
Claims (1)
1. fluid pressure type ground well casing lifter is to be combined by lifting appliance and supporting hydraulic power unit, it is characterized in that lifting appliance is contained in the well head place, it is by load-bearing flange (1), straight pistons work bar (2), cylinder body (3), base (4) constitutes, straight pistons work bar (2) and on piston be installed in the cylinder body (3), base (4) supports cylinder body (3), load-bearing flange (1) is equipped with in straight pistons work bar (2) upper end, the operation well casing passes through the through hole of straight pistons work bar, fix by load-bearing flange (1) support and by slips, the mouth that sandblasts is contained in the foot of operation well casing, sandblasting has ball seat and sealed steel ball (5) on the mouth body, and supporting hydraulic power unit communicates with (A) chamber in the lifting appliance cylinder body by high-pressure rubber pipe and snap joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251073 CN2532238Y (en) | 2001-10-18 | 2001-10-18 | Hydraulic ground hole pipe lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251073 CN2532238Y (en) | 2001-10-18 | 2001-10-18 | Hydraulic ground hole pipe lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2532238Y true CN2532238Y (en) | 2003-01-22 |
Family
ID=33661097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01251073 Expired - Fee Related CN2532238Y (en) | 2001-10-18 | 2001-10-18 | Hydraulic ground hole pipe lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2532238Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300441C (en) * | 2003-10-23 | 2007-02-14 | 中国石化胜利油田有限公司采油工艺研究院 | Well washing method of hierarchical water injection well and its underwell tubular column |
| CN102268968A (en) * | 2011-06-29 | 2011-12-07 | 胜利油田东胜精攻石油开发集团股份有限公司 | Wellhead hydraulic force boosting device and force boosting method |
| CN102352731A (en) * | 2011-10-28 | 2012-02-15 | 中国海洋石油总公司 | Downhole tubular column lifting device capable of transmitting torque in whole course |
| CN103244067A (en) * | 2013-05-15 | 2013-08-14 | 西南石油大学 | Downhole compound lifting tool for separated layer water injection pipe columns for highly deviated well and using method thereof |
-
2001
- 2001-10-18 CN CN 01251073 patent/CN2532238Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300441C (en) * | 2003-10-23 | 2007-02-14 | 中国石化胜利油田有限公司采油工艺研究院 | Well washing method of hierarchical water injection well and its underwell tubular column |
| CN102268968A (en) * | 2011-06-29 | 2011-12-07 | 胜利油田东胜精攻石油开发集团股份有限公司 | Wellhead hydraulic force boosting device and force boosting method |
| CN102268968B (en) * | 2011-06-29 | 2013-10-16 | 胜利油田东胜精攻石油开发集团股份有限公司 | Wellhead hydraulic force boosting method |
| CN102352731A (en) * | 2011-10-28 | 2012-02-15 | 中国海洋石油总公司 | Downhole tubular column lifting device capable of transmitting torque in whole course |
| CN102352731B (en) * | 2011-10-28 | 2013-12-25 | 中国海洋石油总公司 | Downhole tubular column lifting device capable of transmitting torque in whole course |
| CN103244067A (en) * | 2013-05-15 | 2013-08-14 | 西南石油大学 | Downhole compound lifting tool for separated layer water injection pipe columns for highly deviated well and using method thereof |
| CN103244067B (en) * | 2013-05-15 | 2015-10-21 | 西南石油大学 | High angle hole separate layer water injection string down-hole composite lifting instrument and using method thereof |
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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 |