CN2078797U - Shockproof type layered piezometer tube - Google Patents
Shockproof type layered piezometer tube Download PDFInfo
- Publication number
- CN2078797U CN2078797U CN90223382U CN90223382U CN2078797U CN 2078797 U CN2078797 U CN 2078797U CN 90223382 U CN90223382 U CN 90223382U CN 90223382 U CN90223382 U CN 90223382U CN 2078797 U CN2078797 U CN 2078797U
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- pressure
- sealed tube
- damping
- damper
- pipe
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- 238000013016 damping Methods 0.000 claims abstract description 44
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 29
- 210000002445 nipple Anatomy 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract 5
- 239000006096 absorbing agent Substances 0.000 abstract 3
- 230000002238 attenuated effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
A shockproof layered pressure measuring pipe for oil field downhole layered pressure measuring operation comprises a sealing pipe (1), a shock absorber (2), a pressure guiding joint (3), a damping spring (4), a sealing rubber ring (5), a shockproof rubber ring (6) and the like. During operation, the pressure gauge is installed in the device, and then is connected to a branch measuring pipe column to go up and down into the well, if vibration is encountered, strong vertical vibration can be attenuated through the shock absorber (2) and the shock absorbing spring (4) and then transmitted to the pressure gauge, and weak horizontal vibration can be attenuated and eliminated through the shock absorbing rubber rings installed on the shock absorber (2) and the pressure gauge.
The device has the characteristics of light use, reasonable structure, reliable work, easy processing and manufacturing and the like, and can improve the success rate of operation and the full accuracy rate of data, reduce the damage of the pressure gauge and lighten the labor intensity of operation when used for layered pressure measurement.
Description
A kind of Shockproof type delaminating pressure testing pipe that is used under the oil field laminated distributor under well pressure measurement operation loading pressure gauge lower going-into-well.
Before the present invention, the delaminating pressure testing pipe that use in each oil field is double hose delaminating pressure testing pipe, and structure is seen Fig. 1, is made up of plug (1), sealed tube (2), tubing nipple (3), pressure guide hole (4) etc.; Sealed tube (2) welds together by the outer wall and the tubing nipple (3) of pressure guide hole (4), its processing method is to open 2-3 hole in tubing nipple (3) tube wall one side earlier, again sealed tube (2) is penetrated in this pipe and abut against on the inwall of perforate one side, edge along perforate welds together tubing nipple (3) and sealed tube (2) then, weld bond had both played the effect that is connected and fixed, sealed simultaneously annular space between the two again, on sealed tube (2) tube wall, respectively bore an open-work at last with the corresponding position of tubing nipple (3) tube wall perforate, form pressure guide hole (4), the length outline of its sealed tube of piezometer tube (2) of processing is longer than pressure gauge (5), the sealing of one end, the other end is installed plug (1), and an end outline of last plug (1) grows tubing nipple (3).Open plug (1) during use earlier, pressure gauge (5) is packed in the sealed tube (2) into pressure gauge two ends filling damping sponge (6), first-class again plug (1); The delaminating pressure testing pipe that pressure gauge (5) is housed is connected with the tubing string that the delaminating pressure testing packer is housed under the lower going-into-well of back, and the delaminating pressure testing tubular column structure can be an individual layer, also can be multilayer.Fig. 2 is the structural representation of delaminating pressure testing tubing string, its operating principle is to be connected with piezometer tube (4) earlier, the bottom of packer (3) is equipped with under tubing string (1) lower going-into-well of plug the appropriate location and is installed well head, pressurize to tubing string (1) from well head then, pressure is delivered to each packer (3) by the sealed tube and the annular space between the tubing nipple of oil pipe and delaminating pressure testing pipe (4), its swollen Seal Oil tubing string (1) that rises is separated each oil reservoir with annular space between the sleeve pipe (2), the pressure of each oil reservoir then can enter its inner chamber by the pressure guide hole on the corresponding with it delaminating pressure testing pipe (4), pass to pressure gauge, reach the purpose of delaminating pressure testing.
The double hose delaminating pressure testing pipe that uses has following shortcoming at present:
1, two-layer pipe is heavy, and transportation and use are all inconvenient;
2, the charging quantity of damping sponge is difficult for grasping, and its elasticity variation behind the sponge suction liquid, do not have due cushioning effect, when in removing the tubing string operation, bumping the shake of frequent build-up of pressure meter movement bad, had a strong impact on the success rate of pressure measurement operation and the accuracy rate of data;
3, the connection of two-layer pipe is just fixed by the weld bond of pressure guide hole outer rim, because this weld bond contact surface is little, intensity is low, phenomenon of rupture often takes place in the operation, make the pressure of the envelope that rises scurry in the sealed tube and oil sets annular space, damage pressure gauge and change the pressure distribution on original stratum, also can cause oil jacket to flatten weighing apparatus simultaneously packer was lost efficacy, do not reach the purpose of delaminating pressure testing.
The objective of the invention is for the delaminating pressure testing operation provide a kind of damping performance good, use is light, bonding strength is high and the reliable delaminating pressure testing pipe of sealing performance, thereby alleviate the difficulty of operation, prevent that pressure gauge from damaging in operation, improve the accuracy rate of delaminating pressure testing and the one-time success rate of operation.
The objective of the invention is to realize by following measure:
Design a kind of Shockproof type delaminating pressure testing pipe that is used for oil field laminated distributor under well pressure measurement operation, form, it is characterized in that by sealed tube, damper, pressure guiding joint, damping spring, damping cushion rubber and O-ring seal etc.:
A. sealed tube is one section metal tube, and its upper end connects damper, and the lower end connects pressure guiding joint, and damping spring is equipped with in the pressure guiding joint upper end in the sealed tube, and the damping cushion rubber is housed on the sealed tube outer wall;
B. damper is by shell, catch, back-up ring, spring and damping guide rod constitute, the damper shell is one section metal tube, its upper end closed, the lower end outer wall is connected with sealed tube, inwall is equipped with the back-up ring of a center drilling, damping guide rod upper end extend in the cavity of outer cover metal pipe from the centre bore of back-up ring, stretch on the damping guide rod in the chamber and be fixed with catch, on catch, also be set with spring on the damping guide rod on following two sides, the nipple that can be connected with pressure gauge is equipped with in the lower end of damping guide rod, all is set with shockproof rubber coil on the outer wall of the nipple of damper shell and damping guide rod;
C. pressure guiding joint is the heavy wall tubular structure of one section metal, the upper end is the oil pipe box thread, the lower end is the oil pipe male thread, the lower end closed of its centre bore, the upper end is connected with sealed tube, being processed with the pressure transmission hole of a plurality of upper and lower perforations on the tube wall vertically, radially being processed with a plurality of pressure guide holes, staggers mutually in the position of pressure transmission hole and pressure guide hole;
D. sealed tube and damper junction and O-ring seal all is installed with the pressure guiding joint junction.
Purpose of the present invention can also be finished by following measure:
1, the sealed tube external diameter is less than pipe aperture, and internal diameter is slightly larger than the pressure gauge diameter, and length is greater than pressure gauge length.
2, on the outer wall of damper shell and on the sealed tube outer wall external diameter of the shockproof rubber coil of suit less than pipe aperture; The damping lower end of the guide rod connects the diameter of the shockproof rubber coil of suit on the manometric nipple outer wall less than the sealed tube internal diameter.
3, spring in the damper and damping spring are the steel wire helical spring.
4, sealed tube and damper and pressure guiding joint is connected to be and is threaded.
Earlier pressure gauge is contained in the sealed tube of the present invention in the operation, and then is connected to the appropriate location that branch is surveyed G.I.H on the tubing string by the tubing round thread of pressure guiding joint.Each packer below rising by annular space that pressure in the above oil pipe of when envelope piezometer tube can be by sealed tube and tube inner wall the pressure transmission hole on pressure guiding joint being passed to again, oil pipe strata pressure outward then passes through pressure guide hole on the pressure guiding joint and centre bore and enters sealed tube and pass to pressure gauge during pressure measurement; As running into vibrations, wherein stronger vertical vibration is passed to pressure gauge again after by damper and damping spring decay in the operation, and more weak horizontal vibrating can be eliminated by the shockproof rubber coil decay that is contained on damper and the pressure gauge.
Below in conjunction with the accompanying drawings operating principle of the present invention is described further again:
Fig. 1 is a double hose delaminating pressure testing duct ligation composition;
Fig. 2 is delaminating pressure testing down-hole oil tube rod structure figure;
Fig. 3 is a Shockproof type delaminating pressure testing duct ligation composition.
Shockproof type delaminating pressure testing pipe is made up of sealed tube (1), damper (2), pressure guiding joint (3), damping spring (4), O-ring seal (5), shockproof rubber coil (6) etc.
Sealed tube (1) is one section and slightly is longer than pressure gauge, external diameter is less than pipe aperture, internal diameter is greater than the seamless pipe of pressure gauge diameter, connect damper (2) by its upper end of screw thread, the lower end connects pressure guiding joint (3), damping spring (4) is equipped with in the interior pressure guiding joint of sealed tube (1) (3) upper end, O-ring seal (5) all is equipped with in the junction of sealed tube (1) and damper (2) and pressure guiding joint (3), on the outer wall of the nipple that is connected with pressure gauge with the damping guide rod of damper (2) on the outer wall of sealed tube (1), on the outer wall of damper (2) shockproof rubber coil (6) is housed all; Damper (2) is by shell, catch, back-up ring, formations such as spring and damping guide rod, shell is one section seamless pipe, its upper end closed, outer wall is connected with sealed tube by screw thread, the back-up ring of a center drilling is equipped with in its endoporus lower end, the damping guide rod extend in the cavity of shell from the centre bore of back-up ring, stretch on the damping guide rod in the cavity and be fixed with a slice diameter greater than damping guide rod external diameter, catch less than internal diameter of outer cover, on catch, spring of each suit on the damping guide rod on following two sides, on, two springs are respectively by the blind end of shell down, catch and back-up ring are spacing in the cavity of shell, and the nipple that can be connected with pressure gauge is equipped with in the lower end of damping guide rod; The structure of pressure guiding joint (3) is a drive sleeve, the upper end is the oil pipe box thread, the lower end is the oil pipe male thread, the lower end closed of its centre bore, the upper end is connected with sealed tube (1) by screw thread, is processed with the pressure transmission hole of a plurality of upper and lower perforations on the tube wall of pressure guiding joint (3) vertically, radially is processed with a plurality of pressure guide holes, centre bore is communicated with outward with tube wall, will stagger mutually in the pressure transmission hole of processing on the tube wall and the position of pressure guide hole; Spring in the damper (2) and damping spring (4) are the steel wire helical spring, and remaining part is a steel component.
The method that the present invention uses is earlier damper (2) to be unloaded from sealed tube (1), pressure gauge is connected on the damping guide rod, pack in the sealed tube (1) and withstand on the damping spring (4) of lower end, again damper (2) is installed, make traction and damping spring (4) supported and suspended sealed tube (1) in of pressure gauge by the damping guide rod; Manometric Shockproof type delaminating pressure testing pipe will be housed then to be connected with the delaminating pressure testing tubing string, method is earlier sealed tube (1) to be stretched in the oil pipe, pressure guiding joint (3) is linked to each other with tubing string, the oil pipe box thread end of pressure guiding joint (3) connects the top oil pipe, the male thread end connects the bottom oil pipe, and tubing string assembles the appropriate location under the lower going-into-well of back; The seal pressure that rises when rising by envelope in the above oil pipe of Shockproof type delaminating pressure testing pipe can pass in the following oil pipe and each packer by the annular space and the axial pressure transmission hole on pressure guiding joint (3) tube wall of sealed tube (1) and tube inner wall, and the outer strata pressure of oil pipe then enters in the sealed tube (1) by radially pressure guide hole on pressure guiding joint (3) tube wall and centre bore and passes to pressure gauge during pressure measurement; As running into vibrations, wherein stronger vertical vibration can be by passing to pressure gauge after damper (2) and damping spring (4) decay again in the operation, and more weak horizontal vibrating then can be eliminated by the shockproof rubber coil decay that is contained on damper (2) and the pressure gauge.
The present invention has and uses light, rational in infrastructure, reliable operation, is easy to the characteristics such as processing and manufacturing, be used for delaminating pressure testing and can improve success rate and the complete accurate rate of data of operation, reduce manometric damage, alleviate the labour intensity of operation.
Claims (5)
1, a kind of Shockproof type delaminating pressure testing pipe that is used for oil field laminated distributor under well pressure measurement operation is made up of sealed tube, damper, pressure guiding joint, damping spring, damping cushion rubber and O-ring seal etc., it is characterized in that:
A. sealed tube is one section metal tube, and its upper end connects damper, and the lower end connects pressure guiding joint, and damping spring is equipped with in the pressure guiding joint upper end in the sealed tube, and the damping cushion rubber is housed on the sealed tube outer wall;
B. damper is by shell, catch, back-up ring, spring and damping guide rod constitute, the damper shell is one section metal tube, its upper end closed, the lower end outer wall is connected with sealed tube, inwall is fixed with the back-up ring of a center drilling, damping guide rod upper end extend in the cavity of outer cover metal pipe from the centre bore of back-up ring, stretch on the damping guide rod in the chamber and be fixed with catch, on catch, also be set with spring on the damping guide rod on following two sides, the nipple that can be connected with pressure gauge is equipped with in the lower end of damping guide rod, all is set with shockproof rubber coil on the outer wall of the nipple of damper shell and damping guide rod;
C. pressure guiding joint is the heavy wall tubular structure of one section metal, the upper end is the oil pipe box thread, the lower end is the oil pipe male thread, the lower end closed of its centre bore, the upper end is connected with sealed tube, being processed with the pressure transmission hole of a plurality of upper and lower perforations on the tube wall vertically, radially being processed with a plurality of pressure guide holes, staggers mutually in the position of pressure transmission hole and pressure guide hole;
D. sealed tube and damper junction and O-ring seal all is installed with the pressure guiding joint junction.
2, delaminating pressure testing pipe as claimed in claim 1, the external diameter that it is characterized in that sealed tube is less than pipe aperture, and internal diameter is slightly larger than the pressure gauge diameter, and length is greater than pressure gauge length.
3, delaminating pressure testing pipe as claimed in claim 1, it is characterized in that on the outer wall of damper shell and the external diameter of the shockproof rubber coil of adorning on the sealed tube outer wall less than pipe aperture; The damping lower end of the guide rod connects the diameter of the shockproof rubber coil of adorning on the manometric nipple outer wall less than the sealed tube internal diameter.
4, delaminating pressure testing pipe as claimed in claim 1 is characterized in that spring and the damping spring in the damper is the steel wire helical spring.
5, the described piezometer tube of claim 1 is characterized in that being connected to be and being threaded of sealed tube and damper and pressure guiding joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90223382U CN2078797U (en) | 1990-11-07 | 1990-11-07 | Shockproof type layered piezometer tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90223382U CN2078797U (en) | 1990-11-07 | 1990-11-07 | Shockproof type layered piezometer tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2078797U true CN2078797U (en) | 1991-06-12 |
Family
ID=4901149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90223382U Granted CN2078797U (en) | 1990-11-07 | 1990-11-07 | Shockproof type layered piezometer tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2078797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168645A (en) * | 2018-03-23 | 2018-06-15 | 中国矿业大学(北京) | Multi-section multi-layer is the same as survey casing and inspection well |
-
1990
- 1990-11-07 CN CN90223382U patent/CN2078797U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168645A (en) * | 2018-03-23 | 2018-06-15 | 中国矿业大学(北京) | Multi-section multi-layer is the same as survey casing and inspection well |
| CN108168645B (en) * | 2018-03-23 | 2024-01-23 | 中国矿业大学(北京) | Multi-layer section simultaneous-measurement casing pipe and observation well |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |