CN103790543B - A kind of micro-seismic monitoring well wellhead protecting sealing and connecting device and process - Google Patents
A kind of micro-seismic monitoring well wellhead protecting sealing and connecting device and process Download PDFInfo
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- CN103790543B CN103790543B CN201310597814.3A CN201310597814A CN103790543B CN 103790543 B CN103790543 B CN 103790543B CN 201310597814 A CN201310597814 A CN 201310597814A CN 103790543 B CN103790543 B CN 103790543B
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Abstract
A kind of micro-seismic monitoring well wellhead protecting sealing and connecting device and process, belong to wellhead assembly technical field.Device includes: with casing nipple, upper flange and the lower flange of screw thread, casing nipple, cable penetration mouth, V-seal, connection union, casing nipple top closure cover plate, top blind flange inner hanging hook, top blind flange outer suspension ring, top blind flange pressure cap, top blind flange pressure cap handle, casing nipple side Taper Pipe button hole, flange seal steel ring, flange bolt；Lower flange is connected with casing nipple by screw thread and is welded, and the casing nipple other end is reserved with screw thread；Upper flange is directly connected with casing nipple one end welded seal, and the casing nipple other end leaves screw thread, and blocks by top blind flange, and top blind flange is by the pressure cap fixing seal of band female thread screw thread.The present invention can effective seal shaft, monitoring instrument in protection well, it is achieved import cable penetration, support protection cable, make cable expansion freely.
Description
Technical field
The present invention relates to a kind of micro-seismic monitoring well wellhead protecting sealing and connecting device and process,
Belong to wellhead assembly technical field.
Background technology
During gas storage safe operation, need to dispose some shallow tables monitoring well to gas storage cap rock
Sealingly secure carry out long term monitoring.This monitoring well well depth is less than 100 meters, seals in pit shaft,
Do not link up with stratum.Micro-seismic monitoring instrument is entered, by data transmission electricity under in these monitoring well wells
The data result monitored continuously is transmitted to terrestrial information acquisition system by cable.For realizing continuous monitoring
Purpose, such prison Review of Operating Devices for Logging needs have pit shaft sealing protection, well head data cable passes through,
Wellbore fluid medium is mended for function, in-site installation to be easy to and the maintenance in later stage, repaiies inspection operation.
At present, domestic also not pass through for data cable for gas storage micro-seismic monitoring well is custom-designed
And pit shaft seals the multifunctional wellhead device of protection.Generally in the gas storage production and operation and safety monitoring
Cheng Zhong, note gas recovery well and deep reservoirs monitoring well are frequently with standard pressure well head, not enough for the degree of depth
For the shallow table cover layer monitoring well of 100 meters, standard pressure well head uses heavy, cost height, installs dimension
Protect operation process complicated, loaded down with trivial details, be unfavorable for in-site installation operation and finishing operations, maintenance.
Gas storage cap rock micro-seismic monitoring well is recently as greatly developing construction of storage and newborn
Well type, also there is no special skill for this micro-seismic monitoring well long term monitoring purpose well head functional device
Art scheme.A micro-seismic monitoring well carrying out Reservoir Fracture monitoring is had in oilfield exploitation procedure, but greatly
All being by monitoring or the purpose of Short-Term Monitoring, employing well head is open, data cable directly leads out temporarily
Connected mode be monitored operation, the exclusive data cable not designed for long term monitoring purpose
Pass through and pit shaft seals the wellhead assembly protected.According to conventional oil gas well wellhead assembly, then for deeply
For the degree shallow table monitoring well less than 100 meters, installation exercise process is complicated, loaded down with trivial details, uses heaviness, makes
Valency is high, is unfavorable for monitoring the finishing operations of well, maintenance.
Existing wellhead assembly for the well head functional device of gas storage cap rock micro-seismic monitoring well, is not adopted
The scheme of being replaced with can not fully meet that monitoring well is long-term, the purpose of safe and continuous monitoring.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of micro-seismic monitoring well wellhead protecting
Sealing and connecting device and process.
For guaranteeing gas storage cap rock monitoring well underground monitoring instrument for a long time, effectively, steadily, supervise accurately
Survey effect, facilitate the maintenance in wellhead installing operation and later stage simultaneously, need to use one can protect well
Interior monitoring instrument, pass through data cable, seal shaft work space, regular supply pit shaft medium
Wellhead protecting sealing and connecting device, it is achieved long-term safety monitors purpose continuously.
A kind of micro-seismic monitoring well wellhead protecting sealing and connecting device, by being respectively provided with the upper of casing nipple
Lower flange part is connected by steel ring and bolt seal.Lower flange uses standard thread flange, passes through screw thread
Connect casing nipple and be welded.Upper flange is the simple flange connected with lower flange, welded top sleeve pipe
Pipe nipple, casing nipple other end cover plate blocks, and cover plate plug inner top welds hangs vertical with cover plate
Hook.Respectively opening an outlet at upper flange casing nipple side, Taper Pipe button hole, side are reserved in side
As cable penetration mouth.Well inner cable is passed by passing through mouth, passes through mouth and installs " V " type sealed packing
Seal the cable passed, seal shaft simultaneously.
A kind of micro-seismic monitoring well wellhead protecting sealing and connecting device, short including the sleeve pipe with screw thread
Joint, upper flange and lower flange, casing nipple, cable penetration mouth, V-seal, connection union, set
Pipe pipe nipple top closure cover plate, top blind flange inner hanging hook, the outer suspension ring of top blind flange, top blind flange pressure cap,
Top blind flange pressure cap handle, casing nipple side Taper Pipe button hole, flange seal steel ring, Flange joint spiral shell
Bolt；Lower flange is connected with casing nipple by screw thread and is welded, and the casing nipple other end is reserved with silk
Button；Upper flange is directly connected with casing nipple one end welded seal, and the casing nipple other end leaves screw thread,
And block by top blind flange, top blind flange is by the pressure cap fixing seal of band female thread screw thread；Upper flange
On casing nipple top closure cover plate in be welded with one be perpendicular to block cover plate hanged hook；On upper flange
Casing nipple side be relatively respectively arranged with an outlet, Taper Pipe button hole is reserved in side, and side is as cable penetration
Mouthful；Cable penetration mouth is provided with " V " type sealed packing and connects union.
A kind of wellhead protecting sealing connection process method, containing following steps；
The sleeve pipe set is stayed to connect by screw thread after drilling well the lower flange 14 with screw thread casing nipple 15
After hoop is connected, carry out the preparation before light maintenance operation, then monitoring instrument and filling well under lower going-into-well
Cylinder sealing medium.By the data cable of underground monitoring instrument by casing nipple on upper flange 12
The mouth 8 that passes through of 10 sides passes through away, and enters by passing through " V " the type sealed packing 6 on mouth 8
Row seals.The cable of surplus of enough stretching is wound in the hook in casing nipple 10 top blind flange 3
On 5.After well inner cable passes through out, enter in land cable pillar by connecting union 7, the most laggard
Enter in terrestrial information receiving and processing equipment case.At the cone that upper flange 12 casing nipple 10 opposite side is reserved
Pressure gauge can be installed on pipe thread hole 9, carry out wellbore pressure monitoring, later stage pit shaft medium can be doubled as simultaneously
Fluid infusion hole, it is also possible to extremely block dead, for future use.Finally by upper flange part 12, lower flange part 14
It is tightly connected by steel ring 13 and bolt 11, completes the installation of whole wellhead assembly.
The beneficial effect of apparatus of the present invention it is possible to effective seal shaft, protects monitoring instrument in well,
Realize import cable penetration, support protection cable, make cable expansion freely.The most also can realize pit shaft
Fluid infusion and wellbore pressure monitoring, in-site installation and later stage measure operation are convenient.Whole set of installation is multiple functional,
Simple in construction, easy to operate, with low cost.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, it is possible to more completely preferably
Understand the present invention and easily learn the advantage that many of which is adjoint, but accompanying drawing described herein is used for
A further understanding of the present invention is provided, constitutes the part of the present invention, the schematic enforcement of the present invention
Example and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention, such as figure wherein:
Fig. 1 is the structural representation of the present invention.
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Detailed description of the invention
Obviously, the many modifications and variations that those skilled in the art are done based on spirit of the invention belong to
Protection scope of the present invention.
Embodiment 1: as it is shown in figure 1,
A kind of micro-seismic monitoring well wellhead protecting sealing and connecting device, including: the sleeve pipe with screw thread is short
Joint 15, upper flange 12 and lower flange 14, casing nipple 10, cable penetration mouth 8, V-seal 6,
Connect union 7, the closure of casing nipple 10 top cover plate 3, top blind flange 3 inner hanging hook 5, top cover
The outer suspension ring of plate 32, top blind flange pressure cap 4, top blind flange pressure cap handle 1, casing nipple 10 side
Taper Pipe button hole 9, flange seal steel ring 13, flange bolt 11.
It is made up of the flange part up and down being welded with casing nipple respectively.Lower flange 14 is by screw thread and sleeve pipe
Pipe nipple 15 is connected and is welded, and casing nipple 15 other end is reserved with screw thread.Upper flange 12 is direct
Being connected with casing nipple 10 one end welded seal, casing nipple 10 other end leaves screw thread, and with pushing up
Portion's cover plate 3 blocks, the top blind flange 3 pressure cap 4 fixing seal by band female thread screw thread；
It is welded with one in casing nipple top closure cover plate 3 on upper flange 12 to be perpendicular to block cover plate
Hanged hook 5；
Casing nipple 10 side on upper flange is respectively arranged with an outlet relatively, and Taper Pipe button hole 9 is reserved in side,
Side is as cable penetration mouth 8；
Cable penetration mouth 8 is provided with " V " type sealed packing 6 and connects union 7.
As it has been described above, embodiments of the invention are explained, but as long as substantially do not have
The inventive point and the effect that have the disengaging present invention can have a lot of deformation, and this is to those skilled in the art
For be apparent from.Therefore, such variation is also integrally incorporated in protection scope of the present invention
Within.
Claims (2)
1. a micro-seismic monitoring well wellhead protecting sealing and connecting device, it is characterised in that by being respectively provided with
The flange part up and down of casing nipple is connected by steel ring and bolt seal；Lower flange uses standard screw thread method
Orchid, by screwed connection casing nipple and be welded；Upper flange is the simple flange connected with lower flange,
Welded top casing nipple, casing nipple other end cover plate block, cover plate plug inner top weld one with
The hanged hook that cover plate is vertical；An outlet is respectively opened, the reserved cone in side at upper flange casing nipple side
Pipe thread hole, side is as cable penetration mouth；Well inner cable is passed by passing through mouth, passes through mouth and installs " V "
Type sealed packing seals the cable passed, seal shaft simultaneously.
2. a wellhead protecting sealing connection process method, it is characterised in that containing following steps；
Lower flange with screw thread casing nipple is connected with staying the casing coupling set after drilling well by screw thread
After, carry out the preparation before light maintenance operation, then under lower going-into-well, monitoring instrument and filling pit shaft seal
Medium；By the data cable of underground monitoring instrument by the passing through of casing nipple side on upper flange
Mouth passes through away, and seals by passing through " V " the type sealed packing on mouth；To enough stretch surplus
Cable be wound on the hook in casing nipple top blind flange；After well inner cable passes through out, by even
Connect union to enter in land cable pillar, finally enter in terrestrial information receiving and processing equipment case；Upper
On the Taper Pipe button hole that flange sleeve pipe nipple opposite side is reserved, Pressure gauge can be installed, carry out wellbore pressure monitoring,
Later stage pit shaft medium fluid infusion hole can be doubled as, it is also possible to extremely block dead, for future use simultaneously；Finally by upper
Flange part, lower flange part are connected by steel ring and bolt seal, complete the installation of whole wellhead assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597814.3A CN103790543B (en) | 2013-11-22 | 2013-11-22 | A kind of micro-seismic monitoring well wellhead protecting sealing and connecting device and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597814.3A CN103790543B (en) | 2013-11-22 | 2013-11-22 | A kind of micro-seismic monitoring well wellhead protecting sealing and connecting device and process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103790543A CN103790543A (en) | 2014-05-14 |
| CN103790543B true CN103790543B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310597814.3A Active CN103790543B (en) | 2013-11-22 | 2013-11-22 | A kind of micro-seismic monitoring well wellhead protecting sealing and connecting device and process |
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| Country | Link |
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| CN (1) | CN103790543B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2107149C1 (en) * | 1996-03-05 | 1998-03-20 | Виктор Тимофеевич Кушин | Shaft collar equipment |
| CN2690576Y (en) * | 2004-02-13 | 2005-04-06 | 中国石化集团河南石油勘探局水电厂 | Anti-pollution wellhead device for water source well |
| CN201502350U (en) * | 2009-09-29 | 2010-06-09 | 周步强 | Novel well head sealing device |
| CN201883969U (en) * | 2010-12-03 | 2011-06-29 | 王海坤 | Electric pump cable lateral wing crossing and sealing device |
| CN202108441U (en) * | 2011-05-18 | 2012-01-11 | 陈捍文 | Hanging device of oil sleeve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6530433B2 (en) * | 1999-12-08 | 2003-03-11 | Robbins & Myers Energy Systems, L.P. | Wellhead with ESP cable pack-off for low pressure applications |
-
2013
- 2013-11-22 CN CN201310597814.3A patent/CN103790543B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2107149C1 (en) * | 1996-03-05 | 1998-03-20 | Виктор Тимофеевич Кушин | Shaft collar equipment |
| CN2690576Y (en) * | 2004-02-13 | 2005-04-06 | 中国石化集团河南石油勘探局水电厂 | Anti-pollution wellhead device for water source well |
| CN201502350U (en) * | 2009-09-29 | 2010-06-09 | 周步强 | Novel well head sealing device |
| CN201883969U (en) * | 2010-12-03 | 2011-06-29 | 王海坤 | Electric pump cable lateral wing crossing and sealing device |
| CN202108441U (en) * | 2011-05-18 | 2012-01-11 | 陈捍文 | Hanging device of oil sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103790543A (en) | 2014-05-14 |
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