CN104343436B - Device and method for integrating well dredging and well flushing, and well logging of cement bond well cementing quality - Google Patents

Device and method for integrating well dredging and well flushing, and well logging of cement bond well cementing quality Download PDF

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Publication number
CN104343436B
CN104343436B CN201410455640.1A CN201410455640A CN104343436B CN 104343436 B CN104343436 B CN 104343436B CN 201410455640 A CN201410455640 A CN 201410455640A CN 104343436 B CN104343436 B CN 104343436B
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China
Prior art keywords
piston
well
gauge tool
size gauge
drift size
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CN104343436A (en
Inventor
任晓宁
唐兆仙
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XI'AN WELL-SUN ELECTRONIC INSTRUMENT Co Ltd
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XI'AN WELL-SUN ELECTRONIC INSTRUMENT Co Ltd
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Publication of CN104343436A publication Critical patent/CN104343436A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/005Monitoring or checking of cementation quality or level
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B31/00Fishing for or freeing objects in boreholes or wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices, or the like

Abstract

The invention discloses a device and a method for integrating well dredging and well flushing, and well logging of cement bond well cementing quality. The device comprises a continuous oil pipe, an ordinary oil pipe or a drill rod which extend into a petroleum well to be connected from top to bottom, wherein the continuous oil pipe, the ordinary oil pipe or the drill rod is connected with a protecting pipe through a rotating connector, and an instrument bunch which is centralized through a pair of centralizers is arranged in a pipe cavity of the protecting pipe; the end part of the protecting pipe is connected with a gauge cutter; a piston which is connected with the rotating connector through a shear pin is arranged in the pipe cavity of the protecting pipe, and the piston is connected with the instrument bunch; a locking mechanism is arranged between the piston and a piston rod, and an unlocking mechanism is arranged on the gauge cutter. A technology comprises two stages of the well dredging and the well flushing, and the well logging of cement bond well cementing quality. The integrated technology technique reduces the number of times that equipment enters the well, reduces the amount of well logging equipment, shortens the well logging time, reduces the equipment investment, and has good market application prospects.

Description

A kind of drifting well-flushing cement bond cementing quality well logging integrated apparatus and method
Technical field
The present invention relates to a kind of reinforcing oil well quality test technology, more particularly to a kind of oil well drifting well-flushing water Earth rubber knot cementing quality logging technique and constructing device, are particularly well-suited to horizontal well and high angle hole.
Background technology
Existing process technology is, after the completion of cementing well cementation, carries drifting with coiled tubing or plain tubing (or drilling rod) Rule are gone into the well, and carry out drifting and clean-out service, go out coiled tubing or plain tubing (or drilling rod), finally after the completion of operation from down-hole Connect cement bond cementing quality measuring instrument with cable to go into the well, carry out cementing quality measurement and assessment.Under the method needs twice Well, ground needs to be equipped with logging truck, if horizontal well or high angle hole also need to be equipped with horizontal well crawl device, time-consuming, equipment Complexity, and need professional logging technique personnel, individual well logging cost is high.
Content of the invention
It is an object of the invention to provide a kind of drifting well-flushing cement bond cementing quality well logging integrated apparatus and method, should Technology and relevant equipment, can complete the integrated construction operation of the logical, well-flushing after individual well well cementation and well logging.
To achieve these goals, the present invention adopts the following technical scheme that;
As one embodiment of the present invention, a kind of drifting well-flushing cement bond cementing quality well logging integrated apparatus, Including putting in the coiled tubing connecting from top to bottom in oil well, plain tubing or drilling rod, described coiled tubing, plain tubing or Drilling rod connects a protection pipe by adapter, is provided with the instrument string by a pair of centralizer righting in protection pipe tube chamber;Described guarantor The end of pillar is connected with drift size gauge tool;
It is provided with the piston being connected by shear pin, piston and described instrument string phase with adapter in described protection pipe tube chamber Even;Described piston is provided with locking mechanism, and described drift size gauge tool is provided with unlocking mechanism.
Preferably, described piston and coiled tubing, plain tubing or drilling rod corresponding end are to accommodate the opening shape of ball, live Plug and instrument string connection end are the taper surface being inserted into drift size gauge tool, piston are communicated with protect the hole of tube chamber.
Preferably, described piston and coiled tubing, plain tubing or drilling rod corresponding end imperforation, piston is connected with instrument string Hold the taper surface for being inserted into drift size gauge tool.This structure is that drifting well-flushing cement bond cementing quality well logging one of the present invention is disguised The deriving device put.
Preferably, described drift size gauge tool is provided with the drift size gauge tool centre bore being connected with sleeve pipe.
Correspondingly, The present invention gives carrying out drifting well-flushing cement bond cementing quality well logging integration side using this device Method, the method comprises the steps:
A, drifting clean-out service:
1) coiled tubing, plain tubing or drilling rod promote and include adapter, protection pipe, piston, instrument string, drift size gauge tool along set Pipe moves to down-hole;
2) flushing fluid is injected from coiled tubing, plain tubing or drilling rod centre bore, pass sequentially through the centre bore of piston with And the annular space between by-pass prot, protection pipe and instrument string, flow out from drift size gauge tool centre bore;
3) carry the annular space that the flushing fluid of the drilled cement debris of down-hole enters between operating system and sleeve pipe, and in pressure Move to well head under effect, the debris such as drilled cement of down-hole are discharged from well head the most at last;
B, Cementation Quality logging operation:
1) constructing device completes the decentralization stage gone into the well, and ball is put into from coiled tubing, plain tubing or drilling rod;
2) ball reaches piston with flushing fluid, and blocks the centre bore in piston, makes the pressure rise of piston upper end;
3) when pressure reaches setting value, cut off shear pin or trigger other relieving mechanisms, make piston depart from adapter;
4) piston under pressure, promotes coupled instrument string to move to down-hole, when piston is docked with drift size gauge tool Afterwards, piston is locked by the locking mechanism being located between piston and drift size gauge tool with drift size gauge tool, so that instrument string is integrally stretched out under drift size gauge tool End and will not rollback;
5) after completing above step, instrument string is earthward above carried, you can carry out Cementation Quality logging operation.
Preferably, it is connected using shear pin or other relieving mechanisms between described adapter and piston, when piston is subject to When carrying out pressure on artesian well and being more than setting value, shear pin can be cut off or trigger other release devices, so that adapter is separated with piston.
In step B, after described piston is docked with drift size gauge tool, piston is locked by locking mechanism with drift size gauge tool.
In step B, when operation finishes, constructing device carries to ground, mechanism is unlocked to work by unlocking mechanism Plug and the locking of drift size gauge tool, make piston depart from drift size gauge tool.
As another embodiment of the invention, the present invention carries out drifting well-flushing cement gel using above-mentioned deriving device The method of knot cementing quality well logging institutional operation, comprises the steps:
A, drifting clean-out service:
Coiled tubing, plain tubing or drilling rod promote and include adapter, protection pipe, piston, instrument string, drift size gauge tool along sleeve pipe Move to down-hole, complete drifting operation;
B, Cementation Quality logging operation:
1) completed after drifting operation using this derivative technique, inject highly pressurised liquid from coiled tubing, plain tubing or drilling rod, Make the pressure rise of piston upper end;
2) when pressure reaches setting value, cut off shear pin or trigger other relieving mechanisms, make piston depart from adapter;
3) piston under pressure, promotes coupled instrument string to move to down-hole, when piston is docked with drift size gauge tool Afterwards, piston is locked by the locking mechanism being located between piston and drift size gauge tool with drift size gauge tool, so that instrument string is integrally stretched out under drift size gauge tool End and will not rollback;
4), after completing above step, flushing fluid is injected from sleeve pipe, by the annular space between operating system and sleeve pipe, carries well Under debris self protected tube's side opening such as drilled cement enter protection pipe orifice, and under pressure along oil pipe centre bore to well head Motion, the debris such as drilled cement of down-hole are discharged from well head the most at last;
5), after completing this derivative technique clean-out service, instrument is earthward above carried the cement gel that can carry out this derivative technique Knot cementing quality logging operation.
Compared with existing drifting well-flushing cement bond cementing quality logging technique, the present invention has advantages below;
1st, once go into the well and can complete drifting, well-flushing and cement bond cementing quality well logging, the equipment of decreasing is gone into the well number of times;
2nd, coiled tubing or plain tubing (or drilling rod) conveying instrument is adopted to go into the well and can complete whole drifting, well-flushing and water Earth rubber ties cementing quality logging operation, simple to operate, is not required to be equipped with professional logging technique personnel;
3rd, do not need to be equipped with the equipment such as ground logging truck and horizontal well crawl device, decrease logging equipment quantity, save Equipment puts into.
The technology of the present invention adopts coiled tubing or plain tubing (or drilling rod), once goes into the well and completes drifting, well-flushing and cement Cementing cementing quality well logging.Compare existing process, the technology of this integration, the equipment of decreasing is gone into the well number of times, decreases Logging equipment quantity, saves log-time and equipment puts into, and has good market application foreground.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, not Constitute inappropriate limitation of the present invention, in the accompanying drawings:
Fig. 1 carries out schematic diagram during drifting clean-out service for the present invention;
Fig. 2 carries out schematic diagram during cement bond cementing quality logging operation for the present invention;
Fig. 3 is a kind of possible derivative technique of the present invention and constructing device carries out schematic diagram during drifting operation;
Fig. 4 is a kind of possible derivative technique of the present invention and constructing device carries out well-flushing and cement bond cementing quality well logging Schematic diagram during operation.
In figure:1st, sleeve pipe;2nd, coiled tubing, plain tubing or drilling rod;3rd, cement layer;4th, centre bore;5th, operation system Annular space between system and sleeve pipe;6th, adapter;7th, shear pin or other relieving mechanisms;8th, piston I;9th, protection pipe;10 and 13, righting Device;11st, instrument string;12nd, the annular space between protection pipe and instrument string;14th, drift size gauge tool;15th, drift size gauge tool centre bore;16th, screw thread a; 17th, piston center hole and by-pass prot;18th, screw thread b;19th, screw thread c;20th, locking mechanism;21st, screw thread d;22nd, unlocking mechanism;23 Ball;24th, piston II;25th, protection pipe side opening.
Specific embodiment
To describe the present invention, the illustrative examples of the here present invention below in conjunction with accompanying drawing and specific embodiment in detail And explanation is used for explaining the present invention, but not as a limitation of the invention.
Refering to shown in Fig. 1 and Fig. 2, the first embodiment of the present invention, a kind of horizontal well drifting well-flushing cementing is solid Well quality well logging integrating technology, its constructing device includes coiled tubing, plain tubing or the drilling rod connecting from top to bottom 2nd, the ball 23 putting into when adapter 6, protection pipe 9, piston I 8, instrument string 11, drift size gauge tool 14 and work.
Refering to shown in Fig. 1, this horizontal well drifting well-flushing cement bond cementing quality is logged well integrated apparatus, including putting in stone Coiled tubing, plain tubing or the drilling rod 2 connecting from top to bottom in oil well, coiled tubing, plain tubing or drilling rod 2 pass through switching 6 connection one protection pipes 9, are provided with the instrument string 11 by a pair of centralizer 10,13 rightings in protection pipe 9 tube chamber;Protection pipe 9 End is connected with drift size gauge tool 14;Be provided with the piston I 8 being connected with adapter 6 in protection pipe 9 tube chamber, piston I 8 piston rod with Described centralizer 10 is connected;Piston I 8 is provided with locking mechanism 20, and described drift size gauge tool 14 is provided with unlocking mechanism 22.
Piston I 8 is to accommodate the opening shape of ball, piston I 8 and instrument with coiled tubing, plain tubing or drilling rod 2 corresponding end Device string connection end is the taper surface being inserted into drift size gauge tool 14, and piston I 8 is communicated with the aperture of protection pipe 9 cavity.Piston I 8 Connect with protection pipe 9 tube wall, piston I 8 passes through shear pin with adapter 6 or other relieving mechanisms 7 connect.Drift size gauge tool 14 is provided with The drift size gauge tool centre bore 15 being connected with sleeve pipe 1.Sleeve pipe 1 is arranged in cement layer 3.
When carrying out drifting clean-out service using constructing device of the present invention, coiled tubing, plain tubing or drilling rod 2 and adapter 6 are connected by screw thread 16, and adapter 6 is connected by screw thread 18 with protection pipe 9, and protection pipe 9 and drift size gauge tool 14 pass through screw thread 21 even Connect, piston I 8 passes through shear pin with adapter 6 or other relieving mechanisms 7 are connected, piston I 8 and instrument string 11 pass through screw thread 19 even Connect, instrument string 11 through in protection pipe 9 and wrapped up by protection pipe 9 by entirety, and instrument string 11 passes through piston I 8 and centralizer 10,13 Help the central authorities in the hole occuping protection pipe 9.
This is given below and carries out well logging integration using this drifting well-flushing cement bond cementing quality well logging integrated apparatus Method, include drifting well-flushing and cement bond cementing quality in force and log well two stages;
A, when carrying out drifting clean-out service using constructing device of the present invention:
1) constructing device is in the decentralization stage gone into the well, coiled tubing, plain tubing or drilling rod 2 promote include adapter 6, Protection pipe 9, piston I 8, instrument string 11, drift size gauge tool 14 move along sleeve pipe 1 to down-hole;
2) flushing fluid is injected from coiled tubing, plain tubing or drilling rod 2 centre bore 4, pass sequentially through piston center hole with And the annular space 12 between by-pass prot 17, protection pipe and instrument string, flow out from drift size gauge tool centre bore 15;
3) carry the annular space 5 that the flushing fluid of the drilled cement debris of down-hole enters between operating system and sleeve pipe, and in pressure Move to well head under power effect, the debris such as drilled cement of down-hole are discharged from well head the most at last;
B, refering to shown in Fig. 2, Cementation Quality logging operation:
1) after the decentralization stage that constructing device completes to go into the well completes drifting clean-out service, by ball 23 from coiled tubing, general Oil pipe or drilling rod 2 put into;
2) ball 23 reaches piston I 8 with flushing fluid, and blocks the centre bore in piston I 8, makes piston I 8 upper end pressure rise;
3) when pressure reaches setting value, cut off shear pin or other relieving mechanisms 7, make piston I 8 depart from adapter 6;
4) piston I 8 under pressure, promotes coupled instrument string 11 to move to down-hole, when piston I 8 and drifting After rule 14 docking, piston I 8 is locked by the locking mechanism 20 being located between piston I 8 and drift size gauge tool 14 with drift size gauge tool 14, makes instrument String 11 is overall to stretch out drift size gauge tool 14 lower end and will not rollback;
5) after completing above step, instrument string 11 is earthward above carried, you can carry out Cementation Quality logging operation.
Instrument is above carried to ground, can be by two parts by the unlocking mechanism 22 being located between piston I 8 and drift size gauge tool 14 Unblock.After unblock, piston I 8 and instrument string 11 are reset to initial position before operation, and use shear pin or other relieving mechanisms 7 Piston I 8 is connected with adapter 6, to use during lower subjob.
In step B, after described piston I 8 is docked with drift size gauge tool 14, piston I 8 is locked by locking mechanism 20 with drift size gauge tool 14 Fixed.When operation finishes, constructing device carries to ground, mechanism 20 is unlocked to piston I 8 and drifting by unlocking mechanism 22 The locking of rule 14, makes piston I 8 depart from drift size gauge tool 14.
The present invention gives a kind of possible derivative technique and constructing device, and this derivative technique and constructing device are shown in Fig. 3 And Fig. 4.
Below in conjunction with the accompanying drawings this derivative technique and constructing device are described in detail.
Refering to shown in Fig. 3 and Fig. 4, this derivative construction technology device includes coiled tubing, the conventional oil connecting from top to bottom Pipe or drilling rod 2, adapter 6, protection pipe 9, piston II 24, instrument string 11, drift size gauge tool 14.
Refering to shown in Fig. 3, when carrying out drifting operation using this derivative construction technology device, coiled tubing, plain tubing or Drilling rod 2 is connected by screw thread a16 with adapter 6, and two parts can be unlocked by adapter 6.By piston II 24 and instrument string after unblock 11 reset to initial position before operation, and are connected piston II 24 with adapter 6 using shear pin or other relieving mechanisms 7, with Just descend and use during subjob.
Above content is to further describe it is impossible to assert with reference to specific preferred embodiment is made for the present invention The specific embodiment of the present invention is only limitted to this, for general technical staff of the technical field of the invention, is not taking off On the premise of present inventive concept, some simple deduction or replace can also be made, all should be considered as belonging to the present invention by institute The claims submitted to determine scope of patent protection.

Claims (8)

1. a kind of drifting well-flushing cement bond cementing quality well logging integrated apparatus, connect from top to bottom including putting in oil well Coiled tubing, plain tubing or drilling rod (2) be it is characterised in that described coiled tubing, plain tubing or drilling rod (2) pass through to turn Joint (6) connects a protection pipe (9), and coiled tubing, plain tubing or drilling rod (2) and adapter (6) are threaded connection, switching Head (6) is threaded connection with protection pipe (9), is provided with by a pair of centralizer (10), (13) righting in protection pipe (9) tube chamber Instrument string (11);The end of described protection pipe (9) is connected with drift size gauge tool (14);
It is provided with the piston being connected by shear pin (7), piston and instrument string (11) phase with adapter (6) in described protection pipe tube chamber Even;Described piston is provided with locking mechanism (20), and described drift size gauge tool (14) is provided with unlocking mechanism (22).
2. a kind of drifting well-flushing cement bond cementing quality well logging integrated apparatus according to claim 1, its feature exists In described piston is to accommodate opening shape, piston and the instrument of ball with coiled tubing, plain tubing or drilling rod (2) corresponding end String (11) connection end is the taper surface being inserted into drift size gauge tool (14), and piston is communicated with the hole of protection pipe (9) cavity.
3. a kind of drifting well-flushing cement bond cementing quality well logging integrated apparatus according to claim 1, its feature exists In described piston with coiled tubing, plain tubing or drilling rod (2) corresponding end imperforation, piston with instrument string (11) connection end is It is inserted into the taper surface of drift size gauge tool (14).
4. a kind of method of integrated apparatus of being logged well based on the drifting well-flushing cement bond cementing quality described in claim 1, its It is characterised by, the method comprises the steps:
A, drifting clean-out service:
1) coiled tubing, plain tubing or drilling rod (2) promote adapter (6), protection pipe (9), piston I (8), instrument string (11) and Drift size gauge tool (14) moves along sleeve pipe (1) to down-hole;
2) by flushing fluid from coiled tubing, plain tubing or drilling rod (2) centre bore (4) inject, pass sequentially through piston center hole with And the annular space (12) between by-pass prot (17), protection pipe and instrument string, flow out from drift size gauge tool centre bore (15);
3) carry the annular space (5) that the flushing fluid of the drilled cement debris of down-hole enters between operating system and sleeve pipe, and in pressure Move to well head under effect, the drilled cement debris of down-hole are discharged from well head the most at last;
B, Cementation Quality logging operation:
1) constructing device completes the decentralization stage gone into the well, and ball (23) is put into from coiled tubing, plain tubing or drilling rod (2);
2) ball (23) reaches piston I (8) with flushing fluid, and blocks the centre bore in piston I (8), makes the upper end pressure of piston I (8) Raise;
3) when pressure reaches setting value, cut off shear pin (7), make piston I (8) depart from adapter (6);
4) piston I (8) under pressure, promotes coupled instrument string (11) move to down-hole, when piston I (8) with lead to After well rule (14) docking, it is located at locking mechanism (20) between piston I (8) and drift size gauge tool (14) by piston I (8) and drift size gauge tool (14) lock, make instrument string (11) integrally stretch out drift size gauge tool (14) lower end and will not rollback;
5) after completing above step, instrument string (11) is earthward above carried, can carry out Cementation Quality logging operation.
5. the method for drifting well-flushing cement bond cementing quality well logging institutional operation according to claim 4, its feature It is, is connected using shear pin (7) between described adapter (6) and piston I (8), when what piston I (8) was subject to comes on artesian well When pressure is more than setting value, shear pin (7) can be cut off, so that adapter (6) is separated with piston I (8).
6. drifting well-flushing cement bond cementing quality well logging integral method according to claim 4 is it is characterised in that walk In rapid B, after described piston I (8) is docked with drift size gauge tool (14), piston I (8) is locked by locking mechanism (20) with drift size gauge tool (14) Fixed.
7. drifting well-flushing cement bond cementing quality well logging integral method according to claim 4 is it is characterised in that walk In rapid B, when operation finishes, constructing device carries to ground, mechanism (20) is unlocked to piston I by unlocking mechanism (22) (8) locking with drift size gauge tool (14), makes piston I (8) depart from drift size gauge tool (14).
8. a kind of derivative side of integrated apparatus of being logged well based on the drifting well-flushing cement bond cementing quality described in claim 1 Method is it is characterised in that the method comprises the steps:
A, drifting operation:
Coiled tubing, plain tubing or drilling rod (2) promote adapter (6), protection pipe (9), piston II (24), instrument string (11) and Drift size gauge tool (14) moves along sleeve pipe (1) to down-hole, completes drifting operation;
B, Cementation Quality logging operation:
1) completed after drifting operation using this deriving method, inject highly pressurised liquid from coiled tubing, plain tubing or drilling rod (2), Make piston II (24) upper end pressure rise;
2) when pressure reaches setting value, cut off shear pin (7), make piston II (24) depart from adapter (6);
3) piston II (24) under pressure, promotes coupled instrument string (11) to move to down-hole, when piston II (24) After docking with drift size gauge tool (14), be located at locking mechanism (20) between piston II (24) and drift size gauge tool (14) by piston II (24) with Drift size gauge tool (14) locks, and makes instrument string (11) integrally stretch out drift size gauge tool (14) lower end and will not rollback;
4), after completing above step, flushing fluid is injected from sleeve pipe (1), by the annular space (5) between operating system and sleeve pipe, carries Drilled cement debris self protected tube's side opening (25) of down-hole enters protection pipe orifice, and under pressure along oil pipe centre bore (4) move to well head, the drilled cement debris of down-hole are discharged from well head the most at last;
5), after completing this deriving method clean-out service, instrument is earthward above carried the cementing that can carry out this deriving method Cementing quality logging operation.
CN201410455640.1A 2014-09-09 2014-09-09 Device and method for integrating well dredging and well flushing, and well logging of cement bond well cementing quality Active CN104343436B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1004626A1 (en) * 1981-09-03 1983-03-15 Всесоюзный научно-исследовательский институт нефтепромысловой геофизики Apparatus for monitoring quality of cementing of large-diameter casings
SU1364704A1 (en) * 1985-12-17 1988-01-07 Всесоюзный научно-исследовательский институт нефтепромысловой геофизики Apparatus for monitoring the quality of cementing the casings of large-diameter wells
CA2009284A1 (en) * 1990-02-05 1991-08-05 Hiram E. Lindsey Liner and drill pipe assembly
US5036916A (en) * 1989-07-14 1991-08-06 Frank Bennett Method and apparatus for locating wet cement plugs in open bore holes
CN1621658A (en) * 2003-11-28 2005-06-01 大港油田集团有限责任公司 Well cementing technology by center tube replacing elutriation method
CN203308406U (en) * 2013-05-23 2013-11-27 李祥国 Improved type oil well hollow rod well flushing device
CN103711469A (en) * 2013-12-27 2014-04-09 阜新驰宇石油机械有限公司 Horizontal well switchable type well cementation staged fracturing oil production technology
CN103711473A (en) * 2013-12-30 2014-04-09 中国石油集团渤海钻探工程有限公司 Double-circulation relay type method for drilling and completing coal seam composite well
CN204225817U (en) * 2014-09-09 2015-03-25 西安威盛电子科技股份有限公司 A kind of drifting well-flushing cement bond cementing quality well logging integrated apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1004626A1 (en) * 1981-09-03 1983-03-15 Всесоюзный научно-исследовательский институт нефтепромысловой геофизики Apparatus for monitoring quality of cementing of large-diameter casings
SU1364704A1 (en) * 1985-12-17 1988-01-07 Всесоюзный научно-исследовательский институт нефтепромысловой геофизики Apparatus for monitoring the quality of cementing the casings of large-diameter wells
US5036916A (en) * 1989-07-14 1991-08-06 Frank Bennett Method and apparatus for locating wet cement plugs in open bore holes
CA2009284A1 (en) * 1990-02-05 1991-08-05 Hiram E. Lindsey Liner and drill pipe assembly
CN1621658A (en) * 2003-11-28 2005-06-01 大港油田集团有限责任公司 Well cementing technology by center tube replacing elutriation method
CN203308406U (en) * 2013-05-23 2013-11-27 李祥国 Improved type oil well hollow rod well flushing device
CN103711469A (en) * 2013-12-27 2014-04-09 阜新驰宇石油机械有限公司 Horizontal well switchable type well cementation staged fracturing oil production technology
CN103711473A (en) * 2013-12-30 2014-04-09 中国石油集团渤海钻探工程有限公司 Double-circulation relay type method for drilling and completing coal seam composite well
CN204225817U (en) * 2014-09-09 2015-03-25 西安威盛电子科技股份有限公司 A kind of drifting well-flushing cement bond cementing quality well logging integrated apparatus

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