CN103410478B - The hollow oil rig of a kind of producing profile testing - Google Patents
The hollow oil rig of a kind of producing profile testing Download PDFInfo
- Publication number
- CN103410478B CN103410478B CN201310341516.8A CN201310341516A CN103410478B CN 103410478 B CN103410478 B CN 103410478B CN 201310341516 A CN201310341516 A CN 201310341516A CN 103410478 B CN103410478 B CN 103410478B
- Authority
- CN
- China
- Prior art keywords
- central tube
- hollow
- slips
- lock
- periphery
- 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.)
- Active
Links
Abstract
The present invention relates to the hollow oil rig of a kind of producing profile testing in oil field well oil tool field, comprise central tube, described central tube threaded upper ends connects back-off sub, central tube lower end is threaded lower contact, described lower contact lower end is connected with hollow rod pumping pump, central tube outer wall on the downside of back-off sub successively slip cap has upper interior cutting ferrule and lock ring, in upper, cutting ferrule and lock ring overcoat have lock ring cover, described lock ring inwall and the central tube outer wall on the downside of lock ring are respectively equipped with the one-way lock tooth be mutually engaged, lock ring cover lower end outer wall is threaded thrust sleeve, the central tube periphery of described thrust sleeve lower end is respectively equipped with packing rubber sleeve and grappling slips, central tube periphery between described back-off sub lower end and upper interior cutting ferrule is provided with fluid cylinder, described center tube wall is provided with the through hole with fluid cylinder inner space.Device of the present invention can realize when producing profile testing pump function, with timer hollow design for test time instrument and removing of means of delivery passage is provided.
Description
Technical field
The present invention relates to oil field well oil tool field, particularly the hollow oil rig of a kind of producing profile testing.
Background technology
Along with the production of oil field high angle hole, horizontal well, it is moisture progressively rises, and, cost low to high water-cut stage productivity effect increases.For improving the development effectiveness of such well, need water detection be carried out, determine the water exit interval of oil well, then carrying out water blockoff.At present, more accurately judge that the method for well water position carries out producing profile testing, oil, the aquatic products artificial situation of oil well production interval can be understood by producing profile testing, production adjustment or the close measure of oil well can be implemented on this basis.Special owing to requiring during oil well liquid-producing section plane test, test and oil pumping must be carried out simultaneously.Instrument directly can be descended to carry out producing profile testing for flowing well, and for Dynamical characteristic, existing oil pumping flow string in pit shaft, also will leave enough spaces for the rising of tester, lower and test action simultaneously.
Current Dynamical characteristic producing profile testing technique both domestic and external mainly contains: 1, annular space log technique, this technique adopts decentralized wellhead, flow string is biased, logger enters from oil jacket annular space, weak point there will be logging cable to be wound around flow string, logging instrument is stuck in oil jacket annular space, also restricted with the size entering instrument at present; 2, dual string logging technique: enter to produce under in pit shaft, test two casing strings, flow string for the production of, tester then enters from test string, doing so avoids the problem of cable winding or instrument chance card, due to lower two casing strings, this just has higher requirement to the size of pit shaft, and can only be used for top is 9
" in cased well.
Because some oilfield output are not high at present, all utilize sucker rod pump to carry out lifting during production, and all adopt 5
" small casing completion, two kinds of above-mentioned test technologies are because being just difficult to realize by casing size restriction.
Summary of the invention
The present invention is directed to prior art Problems existing, there is provided a kind of producing profile testing hollow oil rig, so that the lifting of the grappling of implement device when oil well test, packing and formation fluid, simultaneously for produced fluid cross section tester device and means of delivery provide passage, and be applicable to the not high small casing pipe well of output.
The object of the present invention is achieved like this, the hollow oil rig of a kind of producing profile testing, comprise central tube, described central tube threaded upper ends connects back-off sub, central tube lower end is threaded lower contact, described lower contact lower end is connected with hollow rod pumping pump, central tube outer wall on the downside of described back-off sub successively slip cap has upper interior cutting ferrule and lock ring, described interior cutting ferrule and lock ring overcoat have lock ring cover, described lock ring inwall and the central tube outer wall on the downside of lock ring are respectively equipped with the one-way lock tooth be mutually engaged, lock ring cover lower end outer wall is threaded thrust sleeve, the central tube periphery of described thrust sleeve lower end is respectively equipped with packing rubber sleeve and grappling slips, central tube periphery between described back-off sub lower end and upper interior cutting ferrule is provided with fluid cylinder, described center tube wall is provided with the through hole with fluid cylinder inner space, described interior cutting ferrule and fluid cylinder lower end abutment, lock ring cover is connected by pin with fluid cylinder lower end, described fluid cylinder upper end one connects overcoat of giving up, described overcoat engagement sleeves of giving up is loaded on back-off sub periphery and is connected by setting shear pin.
When device of the present invention uses, oil pipe is connected with the back-off sub on top, arrive down the design well depth of cased well, suppressed to fluid cylinder through central tube by oil pipe, fluid cylinder expands gradually and completes the grappling of grappling slips, the packing of packing rubber sleeve successively, a series of actions is thrown off in back-off sub, then raises and decentralizes oil pipe realizes formation fluid lifting by the hollow rod pumping pump of bottom, and the testing well section that producing profile testing instrument can be lowered into below central tube from oil pipe therebetween carries out producing profile testing.In this device, test channel and oil recovery passage share, and can realize test and oil recovery function respectively, and can facilitate the test of the small casing pipe well that output is not high and the realization of oil recovery.Meanwhile, after the grappling of planned well depths and packing, locked by one-way lock tooth between lock tube and central tube, prevent lock tube reverse slide, the fastness of grappling and packing after fluid cylinder pressure release can be ensured.
For ease of realizing the function of back-off sub, described back-off sub comprises joint body, the outer slipper seal of described joint body is set with lock tube of giving up, described lock tube and the joint body of giving up is fixed by lock dog and shear pin of giving up, on the downside of described lock tube of giving up, inwall is provided with step in joint body lower end, and lock tube lower end of giving up is connected with central tube thread seal, described overcoat of giving up is slidably matched and is set in lock tube periphery of giving up, described setting shear pin radial direction is arranged at the overcoat and give up between lock tube of giving up, lock dog groove is provided with inside described outer set upper side of giving up, by dovetail groove axial restraint between described lock dog and joint body.
For ease of the packing of device, described packing rubber sleeve comprises the packing element sliding sleeve being slidably arranged in central tube periphery, described packing element sliding sleeve periphery is set with some packing elements separated by spacer ring, and packing element is topmost extruded by thrust sleeve, and packing element is bottom fixed by glue tube base.
For ease of the grappling of implement device and sleeve pipe, described grappling slips comprises the slips being arranged on central tube periphery, slips periphery is provided with slips cylinder, locked by sheet spring radial direction between slips and slips cylinder, the central tube outer wall of described slips top and bottom is slidably matched respectively and is provided with upper cone and lower cone, and the slips barrel that slips is corresponding is provided with the opening being convenient to slips radially outwardly projecting when upper cone and lower cone extruding slips; Described upper cone and glue tube base are fixed by pin, and described lower cone lower end periphery thread seal is connected with lower joint sleeve, and described lower joint sleeve lower end engagement sleeves is contained in lower contact periphery and is connected by deblocking pin.
For ease of realizing oil pumping and test, described hollow rod pumping pump comprises by hollow draw-bar, hollow plunger and hollow piston rod organization center passage, described central passage periphery is provided with pump barrel, described pump barrel upper end is connected with pump barrel top connection, described pump barrel lower end is connected with pump barrel lower contact, described pump barrel top connection and lower contact screw are tightly connected, described hollow draw-bar to extend upwardly on the upside of central tube and is connected with joint body thread seal, the hollow draw-bar of described pump barrel top connection lower end is provided with and central passage pressure in hollow draw-bar is passed to the radial hole of annular space between hollow draw-bar and central tube and is used for the biased switch of switch radial hole.Hollow rod pumping pump of the present invention, both can provide passage for tester and removing of means of delivery after central passage is communicated with oil pipe, formation fluid is entered oil jacket annular space by the annular space of the hollow draw-bar of hollow rod pumping pump, hollow plunger, hollow piston rod and pump barrel through the annular space of central tube and hollow draw-bar thus is lifted to ground.
Accompanying drawing explanation
Fig. 1 is the hollow oil rig structure chart of producing profile testing of the present invention.
Fig. 2 is the partial enlarged drawing of A section in Fig. 1.
Fig. 3 is the partial enlarged drawing of B section in Fig. 1.
Fig. 4 is the partial enlarged drawing of C section in Fig. 1.
Fig. 5 is the partial enlarged drawing of D section in Fig. 1.
Fig. 6 is the partial enlarged drawing at E place in Fig. 5.
Wherein, 1 back-off sub; 101 joint bodies; 102 lock dog grooves; 103 give up lock tube; 104 give up overcoat; 105 give up shear pin; 106 lock dogs; 107 setting shear pins; 2 fluid cylinders; 3 central tubes; 301 through holes; Cutting ferrule on 4; 5 lock ring covers; 6 lock rings; 7 thrust sleeves; 8 packing rubber sleeves; 801 packing elements; 802 spacer rings; 803 packing element sliding sleeves; 804 glue tube bases; 9 grappling slips; 901 upper cones; 902 slips cylinders; 903 springs; 904 slips; 905 lower cones; 10 lower contacts; 11 hollow rod pumping pumps; 111 hollow draw-bars; 112 pump barrel top connections; 113 pump barrels; 114 biased switch; 115 radial holes; 116 hollow plungers; 117 hollow piston rods; 118 pump barrel lower contacts; 12 lower joint sleeves; 13 deblocking pins; 14 pins.
Detailed description of the invention
As Fig. 1-Figure 6 shows that the hollow oil rig of producing profile testing of the present invention, comprise central tube 3, central tube 3 threaded upper ends connects back-off sub 1, central tube 3 lower end is threaded lower contact 10, lower contact 10 lower end is connected with hollow rod pumping pump 11, central tube 3 outer wall on the downside of back-off sub 1 successively slip cap has upper interior cutting ferrule 4 and lock ring 6, in upper, cutting ferrule 4 and lock ring 6 overcoat have lock ring to overlap 5, lock ring 6 inwall and central tube 3 outer wall on the downside of lock ring 6 are respectively equipped with the one-way lock tooth be mutually engaged, lock ring overlaps 5 lower end outer wall and to be threaded thrust sleeve 7, central tube 3 periphery of thrust sleeve 7 lower end is respectively equipped with packing rubber sleeve 8 and grappling slips 9, central tube 3 periphery between back-off sub 1 lower end and upper interior cutting ferrule 4 is provided with fluid cylinder 2, central tube 3 wall is provided with the through hole 301 with fluid cylinder 2 inner space, cutting ferrule 4 and fluid cylinder 2 lower end abutment in upper, lock ring cover 5 is connected by pin 14 with fluid cylinder 2 lower end, fluid cylinder 2 upper end one connects overcoat 104 of giving up, overcoat 104 engagement sleeves of giving up is loaded on back-off sub 1 periphery and is connected by setting shear pin 107.
For ease of realizing the function of back-off sub 1, back-off sub 1 comprises joint body 101, the outer slipper seal of joint body 101 is set with lock tube 103 of giving up, lock tube 103 of giving up is fixed by lock dog 106 and shear pin 105 of giving up with joint body 101, inwall on the downside of lock tube 103 of giving up is provided with step in joint body 101 lower end, and lock tube 103 lower end of giving up is connected with central tube 3 thread seal, overcoat 104 of giving up is slidably matched and is set in lock tube 103 periphery of giving up, setting shear pin 107 radial direction is arranged at the overcoat 104 and give up between lock tube 103 of giving up, give up inside overcoat 104 upper end and be provided with lock dog groove 102, by dovetail groove axial restraint between lock dog 106 and joint body 101.
For ease of the packing of device, packing rubber sleeve 8 comprises the packing element sliding sleeve 803 being slidably arranged in central tube 3 periphery, packing element sliding sleeve 803 periphery is set with some packing elements 801 separated by spacer ring 802, packing element 801 is topmost extruded by thrust sleeve 7, and packing element 801 is bottom fixed by glue tube base 804.
For ease of the grappling of implement device and sleeve pipe, grappling slips 9 comprises the slips 904 being arranged on central tube 3 periphery, slips 904 periphery is provided with slips cylinder 902, locked by sheet spring 903 radial direction between slips 904 and slips cylinder 902, central tube 3 outer wall of slips 904 top and bottom is slidably matched respectively and is provided with upper cone 901 and lower cone 905, and slips cylinder 902 wall of slips 904 correspondence is provided with the opening being convenient to slips 904 radially outwardly projecting when upper cone 901 and lower cone 905 extrude slips 904; Upper cone 901 and glue tube base 804 are fixed by pin, and lower cone 905 lower end periphery thread seal is connected with lower joint sleeve 12, and lower joint sleeve 12 lower end engagement sleeves is contained in lower contact 10 periphery and is connected by deblocking pin 13.
For ease of realizing oil pumping and test, hollow rod pumping pump 11 comprises by hollow draw-bar 111, hollow plunger 116 and hollow piston rod 117 organization center passage, central passage periphery is provided with pump barrel 113, pump barrel 113 upper end is connected with pump barrel top connection 112, pump barrel 113 lower end is connected with pump barrel lower contact 118, pump barrel top connection 112 and lower contact 10 screw are tightly connected, hollow draw-bar 111 to extend upwardly on the upside of central tube 3 and is connected with joint body 101 thread seal, the hollow draw-bar 111 of pump barrel top connection 112 lower end is provided with and the pressure of central passage in hollow draw-bar 111 is passed to the radial hole 115 of annular space between hollow draw-bar 111 and central tube 3 and is used for the biased switch 114 of switch radial hole 115.
When liquid production section test device of the present invention uses, joint body 101 is connected with oil pipe, after the central passage of hollow draw-bar 111, hollow plunger 116 and hollow piston rod 117 composition coordinates with central tube 3 and is set with, when constituting test instrument and means of delivery rises, under passage, be also the passage of formation fluid lifting simultaneously.During use, cased well projected depth position is arrived by under device by oil pipe, again from the central passage entered in oil pipe below instrument to radial hole 115, and central passage lower end is sealed, suppress oil pipe again, pressure cannot can be passed to central tube 3 with in the annular space of hollow draw-bar 111 by radial hole 115 by going down, and be passed in fluid cylinder 2 from through hole 301, in fluid cylinder 2 volume enlargement process, setting shear pin 107 is cut off, give up overcoat 104 and fluid cylinder 2 centrally pipe 3 move downward, promote upper interior cutting ferrule 4 simultaneously, lock ring cover 5, lock ring 6, thrust sleeve 7, packing rubber sleeve 8, upper cone 901 moves downward, upper cone 901 can promote slips 904 along conical surface radial outward movement, thus it is outside to protrude from slips cylinder 902, until slips 904 contacts with internal surface of sleeve pipe and is anchored on sleeve pipe, until upper cone 901 cannot continue to move downward again, along with oil pipe continue suppress, the volume of fluid cylinder 2 continues to expand, pin 14 is cut off, give up overcoat and fluid cylinder continues to move downward, in in promotion, cutting ferrule 5, lock ring cover 5, lock ring 6 and thrust sleeve 7 continue descending, thus packing element 801 is compressed, packing element 801 is compressed rear radial direction and swells and to contact with internal surface of sleeve pipe and to seal the packing realizing casing annulus, when packing element 801 cannot recompress, along with fluid cylinder 2 pressure raises, when fluid cylinder volume continues to expand, central tube 3 is driven to move upward along overcoat 104 of giving up promotion joint body 101 and lock tube 103 of giving up, when lock dog 106 moves to lock dog groove 102, lock dog 106 outwards moves in footpath under the effect of dovetail groove, fall in lock dog groove 102, thus stressed the uprushing of shear pin 105 and cut off joint body 101 and other back-off sub 1 parts are thrown off of making to give up, due to joint body 101 upper end and oil pipe, lower end is still connected with hollow draw-bar 111, oil pipe is carried now, after biased switch 114 on hollow draw-bar 111 encounters pump barrel top connection 112, radial hole 115 is closed, lower drain line, adjustment dead space, carry from ground, lower drain line realizes the multiple toward motion of hollow rod pumping pump 11, formation fluid can give rise to ground from casing annulus, therebetween, produced fluid cross section tester can pass through oil pipe, back-off sub 1, hollow draw-bar 111, hollow plunger 116, this passage of hollow piston rod 117 implements producing profile testing down to test zone.After having tested, on carry oil pipe and drive on hollow draw-bar 111 and move, again encounter pump barrel top connection 112 when biased switch 114 to be displaced downwardly to hollow plunger 116 and to be hampered, continue reinforcing is carried, when reaching certain pulling force, deblocking pin 13 is cut off, and the elasticity of sheet spring 903 and packing element 801 self can promote upper cone 901 and lower cone 905 is descending, and slips 904 also can bounce back in slips cylinder 902, the hollow oil rig of producing profile testing completes deblocking, and device trips out cased borehole with oil pipe.
In of the present invention device, central passage is that tester and removing of means of delivery provide passage, and the annular space of central passage and pump barrel, central tube is the lifting passage of formation fluid.Meanwhile, after the grappling of planned well depths and packing, locked by one-way lock tooth between lock tube and central tube, prevent lock tube reverse slide, thus the fastness of grappling and packing after ensureing fluid cylinder pressure release.
The present invention is not limited to above-described embodiment, every on the basis of technical scheme disclosed by the invention, those skilled in the art is according to disclosed technology contents, do not need performing creative labour just can make some to some technical characteristics wherein to replace and distortion, these are replaced and are out of shape all within the scope of the invention.
Claims (5)
1. the hollow oil rig of producing profile testing, comprise central tube, described central tube threaded upper ends connects back-off sub, central tube lower end is threaded lower contact, it is characterized in that, described lower contact lower end is connected with hollow rod pumping pump, central tube outer wall on the downside of described back-off sub successively slip cap has upper interior cutting ferrule and lock ring, described interior cutting ferrule and lock ring overcoat have lock ring cover, described lock ring inwall and the central tube outer wall on the downside of lock ring are respectively equipped with the one-way lock tooth be mutually engaged, lock ring cover lower end outer wall is threaded thrust sleeve, the central tube periphery of described thrust sleeve lower end is respectively equipped with packing rubber sleeve and grappling slips, central tube periphery between described back-off sub lower end and upper interior cutting ferrule is provided with fluid cylinder, described center tube wall is provided with the through hole with fluid cylinder inner space, described interior cutting ferrule and fluid cylinder lower end abutment, lock ring cover is connected by pin with fluid cylinder lower end, described fluid cylinder upper end one connects overcoat of giving up, described overcoat engagement sleeves of giving up is loaded on back-off sub periphery and is connected by setting shear pin.
2. the hollow oil rig of producing profile testing according to claim 1, it is characterized in that, described back-off sub comprises joint body, the outer slipper seal of described joint body is set with lock tube of giving up, described lock tube and the joint body of giving up is fixed by lock dog and shear pin of giving up, on the downside of described lock tube of giving up, inwall is provided with step in joint body lower end, and lock tube lower end of giving up is connected with central tube thread seal, described overcoat of giving up is slidably matched and is set in lock tube periphery of giving up, described setting shear pin radial direction is arranged at the overcoat and give up between lock tube of giving up, lock dog groove is provided with inside described outer set upper side of giving up, by dovetail groove axial restraint between described lock dog and joint body.
3. the hollow oil rig of producing profile testing according to claim 1, it is characterized in that, described packing rubber sleeve comprises the packing element sliding sleeve being slidably arranged in central tube periphery, described packing element sliding sleeve periphery is set with some packing elements separated by spacer ring, packing element is topmost extruded by thrust sleeve, and packing element is bottom fixed by glue tube base.
4. the hollow oil rig of producing profile testing according to claim 3, it is characterized in that, described grappling slips comprises the slips being arranged on central tube periphery, slips periphery is provided with slips cylinder, locked by sheet spring radial direction between slips and slips cylinder, the central tube outer wall of described slips top and bottom is slidably matched respectively and is provided with upper cone and lower cone, and the slips barrel that slips is corresponding is provided with the opening being convenient to slips radially outwardly projecting when upper cone and lower cone extruding slips; Described upper cone and glue tube base are fixed by pin, and described lower cone lower end periphery thread seal is connected with lower joint sleeve, and described lower joint sleeve lower end engagement sleeves is contained in lower contact periphery and is connected by deblocking pin.
5. the hollow oil rig of producing profile testing according to claim 4, it is characterized in that, described hollow rod pumping pump comprises by hollow draw-bar, the central passage of hollow plunger and hollow piston rod composition, described central passage periphery is provided with pump barrel, described pump barrel upper end is connected with pump barrel top connection, described pump barrel lower end is connected with pump barrel lower contact, described pump barrel top connection and lower contact screw are tightly connected, described hollow draw-bar to extend upwardly on the upside of central tube and is connected with joint body thread seal, the hollow draw-bar of described pump barrel top connection lower end is provided with and the pressure of central passage in hollow draw-bar is passed to the radial hole of annular space between hollow draw-bar and central tube and is used for the biased switch of switch radial hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310341516.8A CN103410478B (en) | 2013-08-07 | 2013-08-07 | The hollow oil rig of a kind of producing profile testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310341516.8A CN103410478B (en) | 2013-08-07 | 2013-08-07 | The hollow oil rig of a kind of producing profile testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103410478A CN103410478A (en) | 2013-11-27 |
| CN103410478B true CN103410478B (en) | 2015-12-09 |
Family
ID=49603512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310341516.8A Active CN103410478B (en) | 2013-08-07 | 2013-08-07 | The hollow oil rig of a kind of producing profile testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103410478B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374537B (en) * | 2019-07-16 | 2021-09-07 | 中国石油化工股份有限公司 | Electric control valve type top sealing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080695A (en) * | 1992-06-30 | 1994-01-12 | 冀东石油勘探开发公司 | Hollow oil well pump and hollow oil well pump oil production technology |
| CN201443351U (en) * | 2009-05-27 | 2010-04-28 | 胜利油田金岛实业有限责任公司 | Novel packer |
| CN101793146A (en) * | 2010-03-19 | 2010-08-04 | 中国石油天然气股份有限公司 | Method for testing strata of horizontal well |
| CN201546665U (en) * | 2009-12-02 | 2010-08-11 | 于成龙 | Recyclable bridge plug |
| CN101936147A (en) * | 2009-07-03 | 2011-01-05 | 刘学柱 | Multifunctional double-acting hydraulic oil producing device |
| EP2280174A1 (en) * | 2008-03-11 | 2011-02-02 | Hao, Shuanghui | Hydraulic cylinder, oil pumping unit, oil pumping module and oil pumping system |
| CN103075143A (en) * | 2013-02-18 | 2013-05-01 | 中国石油化工股份有限公司 | Method for testing fluid-producing section of horizontal pump well |
-
2013
- 2013-08-07 CN CN201310341516.8A patent/CN103410478B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080695A (en) * | 1992-06-30 | 1994-01-12 | 冀东石油勘探开发公司 | Hollow oil well pump and hollow oil well pump oil production technology |
| EP2280174A1 (en) * | 2008-03-11 | 2011-02-02 | Hao, Shuanghui | Hydraulic cylinder, oil pumping unit, oil pumping module and oil pumping system |
| CN201443351U (en) * | 2009-05-27 | 2010-04-28 | 胜利油田金岛实业有限责任公司 | Novel packer |
| CN101936147A (en) * | 2009-07-03 | 2011-01-05 | 刘学柱 | Multifunctional double-acting hydraulic oil producing device |
| CN201546665U (en) * | 2009-12-02 | 2010-08-11 | 于成龙 | Recyclable bridge plug |
| CN101793146A (en) * | 2010-03-19 | 2010-08-04 | 中国石油天然气股份有限公司 | Method for testing strata of horizontal well |
| CN103075143A (en) * | 2013-02-18 | 2013-05-01 | 中国石油化工股份有限公司 | Method for testing fluid-producing section of horizontal pump well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103410478A (en) | 2013-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106050222B (en) | Water plugging finding tubular column for open hole horizontal well | |
| CN102777148B (en) | Double-function releasing bridge plug for horizontal well | |
| CN104790903A (en) | Spanning type packer capable of achieving repeated setting | |
| CN104653157A (en) | Multistage separated-layer water injection pipe column and working method thereof | |
| RU182823U1 (en) | PACKER MODULE FOR AUTONOMOUS ISOLATION OF LEAKAGE INTERVALS IN AN UNLESSED WELL | |
| CN103422846B (en) | The fracturing integrated tubing string of open-hole horizontal well completion | |
| CN103410478B (en) | The hollow oil rig of a kind of producing profile testing | |
| CN203420698U (en) | Well completion fracture integrated pipe column for open hole horizontal well | |
| CN203188969U (en) | Thermal washing paraffin removal packer | |
| CN109441399B (en) | Bridge plug capable of flushing sand | |
| CN102337854B (en) | Washable well type gradual unpacking packer | |
| CN201092845Y (en) | Hydraulic pressure, double back-off hand type dragable bridge plug | |
| RU143019U1 (en) | PACKER | |
| CN203145888U (en) | Removable inserting tube oil-extraction bridge plug and special-purpose inserting tube | |
| CN204782812U (en) | Gas storage storehouse is annotated and is adopted tubular column | |
| RU2542062C1 (en) | Device for formation treatment in horizontal well | |
| CN204716186U (en) | A kind of combined type gradually deblocking packer | |
| RU164819U1 (en) | MECHANICAL PACKER FOR ESP | |
| CN111485849A (en) | Casing hydraulic packer | |
| RU2562643C1 (en) | Device for wet stratum development | |
| RU2578093C1 (en) | Plant for simultaneous separate operation of two formations | |
| RU2565619C1 (en) | Bidirectional oil well pump | |
| CN202451103U (en) | Tubing plug | |
| CN202755930U (en) | Drift diameter type location device | |
| CN111927414B (en) | Steam injection and oil production pipe column |
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 |