CN202391415U - Pressure meter with valve - Google Patents
Pressure meter with valve Download PDFInfo
- Publication number
- CN202391415U CN202391415U CN2011204854154U CN201120485415U CN202391415U CN 202391415 U CN202391415 U CN 202391415U CN 2011204854154 U CN2011204854154 U CN 2011204854154U CN 201120485415 U CN201120485415 U CN 201120485415U CN 202391415 U CN202391415 U CN 202391415U
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- China
- Prior art keywords
- valve
- pressure
- pressure gauge
- valve ball
- sealing ring
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a pressure meter with a valve, which comprises a water nozzle, a pressure transmitting head and a valve structural section. The valve structural section comprises a valve ball and a valve ball seat. Water can be injected into an eccentric injection allocation well normally, while changes of back formation pressure after the pressure meter is packed and changes of chock loss pressure and back formation pressure in a normal injection state can be monitored. The pressure meter with the valve is small in size and accurate in pressure measurement and can be fed and fished conveniently and quickly. Outlet pressure and recovered formation pressure of a water injection port can be measured by the aid of one pressure sensor fed into the well once, and accordingly real and reliable scientific data are provided to oilfields.
Description
Technical field
The utility model relates to a kind of water injection well well pressure measuring instrument, especially tests the valve pressure gauge of the eccentric injection allocation well water filling in oil field crushing.
Technical background
Underground survey is requisite work in the oilfield development process, and down-hole pressure is the important parameter of measuring, and is especially very important for monitoring, the control of eccentric water injection well.
Pressure test to eccentric water injection well on the oil field is to improve one of important process in the main producing well oil production process; Can in time understand the pressure condition of payzone through the pressure test on water filling stratum; In time adjustment is to the water injection rate of required layer; Increase payzone pressure, thereby improve production yield rate, increase economic benefit.
The pressure gauge structure that the water injection well in oil fields pressure test is used always is less; Generally be placed on waterflood path; Can only test injection well downhole flow regulator and water nozzle with eminence oil pipe pressure inside; Can not accurately test the recovery on water filling stratum and press (being strata pressure behind the mouth after pressure gauge sets), can not continuous monitoring to the situation of change of eccentric injection allocation well strata pressure behind the mouth under the normal injection state.Therefore when the analysis to measure data, will produce the test condition error in judgement; Also can't get rid of truth that the test data that causes because of reasons such as sealings can not correct response target zone position etc.; Like the oil pipe blowby, seat envelope is not in place or test is tubing pressure rather than strata pressure when tight; Can not make accurate judgement, influence is to the analysis of geo-logical terrain information.
Summary of the invention
The utility model purpose is to solve existing well downforce tester and can not accurately tests the recovery on water filling stratum and press (being strata pressure behind the mouth after pressure gauge sets), can not continuous monitoring to the problems such as situation of change of eccentric injection allocation well strata pressure behind the mouth under the normal injection state.
The technical solution of the utility model is:
A kind of valve pressure gauge comprises pressure transmission head, water nozzle, and this valve pressure gauge also comprises the valve structural sections that is arranged between pressure transmission head, the water nozzle.
Above-mentioned valve structural sections comprises hollow body, valve ball, valve ball seat, and above-mentioned valve ball seat is fixed in the hollow body, and valve ball is arranged at the valve ball seat away from water nozzle one side.
An above-mentioned pressure transmission outer wall is distributed with at least one pressure transmission hole, is provided with pressure sensor in the pressure transmission head.
Above-mentioned valve structural sections also comprises the valve ball baffle plate, and above-mentioned valve ball baffle plate is arranged between pressure transmission head and the valve ball.
Above-mentioned valve pressure gauge also comprises the circuit sleeve pipe, and the foregoing circuit sleeve pipe is connected with the pressure transmission head.
Above-mentioned valve pressure gauge also comprises locating sleeve, and above-mentioned locating sleeve is connected with the circuit sleeve pipe, and above-mentioned locating sleeve radially is provided with in built-in cam through hole and the cam through hole along it positioning cam is housed.
Above-mentioned pressure transmission hole is provided with first sealing ring near water nozzle one side along hollow body radial circumference; Above-mentioned locating sleeve outer wall or circuit sleeve outer wall are provided with second sealing ring along the radial circumference of locating sleeve, and above-mentioned first sealing ring, second sealing ring are connected with the injection well downhole flow regulator delivery port with the space that valve pressure gauge outer wall, injection well downhole flow regulator inwall form.
The above-mentioned locating sleeve other end also is provided with the supporting seat that is used for fixing, and above-mentioned supporting seat external diameter is greater than the internal diameter of the eccentric orfice of eccentric injection mandrel.
Above-mentioned valve pressure gauge also comprises fishing head, and above-mentioned fishing head is installed on the supporting seat.
The utility model advantage is:
(1) a kind of water injection well special use has been proposed; Especially the valve pressure gauge that eccentric water injection well is special-purpose; Both normally water fillings in eccentric injection allocation well can monitor strata pressure behind the mouth after pressure gauge sets, the normal situation of change of strata pressure behind the mouth under the injection state again;
(2) size little, can conveniently throw in, salvage pressure gauge, pressure measurement is accurate;
(3) pressure is recovered on outlet pressure that utilizes a pressure sensor once to go into the well just can to measure water filling port and stratum, for the oil field provides genuine and believable science data.
Description of drawings
Fig. 1 is mounted in the valve pressure gauge structural representation on the bridge-type eccentric injection well downhole flow regulator;
Fig. 2 is a valve structural sections generalized section.
Wherein: 1-fishing head, 2-supporting seat, the eccentric orfice of 3-eccentric injection mandrel, 4-positioning cam, 5-locating sleeve; 6-second sealing ring, 7-pressure transmission hole, 8-valve structural sections, 9-water nozzle, 10-first sealing ring; The delivery port of 11-eccentric injection mandrel, 12-eccentric injection mandrel, 13-valve ball, 14-valve ball seat; 15-first seal groove, 18-circuit sleeve pipe, 19-pressure transmission head, 20-valve ball baffle plate.
The specific embodiment
The utility model valve pressure gauge can be installed on the injection well downhole flow regulator, and especially eccentric injection mandrel 12.
This valve pressure gauge comprises pressure transmission 19, water nozzle 9, and this valve pressure gauge also comprises the valve structural sections that is arranged between pressure transmission 19, the water nozzle 9.
This valve structural sections comprises hollow body, valve ball 13, valve ball seat 14, and 13 of this valve balls are fixed in the hollow body, and valve ball 13 is arranged at valve ball seat 14 away from water nozzle 9 one sides.
This pressure transmission 19 outer wall are distributed with at least one pressure transmission hole 7, are provided with pressure sensor in the pressure transmission 19.Preferable, pressure transmission hole 7 is uniformly distributed with to good with four,
This valve structural sections also comprises valve ball baffle plate 20, and this valve ball baffle plate is arranged between pressure transmission 19 and the valve ball 13.
This valve pressure gauge also comprises circuit sleeve pipe 18; This circuit sleeve pipe 18 and pressure transmission 19 is connected; Comprise power supply, communication unit, data acquisition unit, memory cell and temperature pick up etc. in the circuit sleeve pipe, be used to realize collection, storage and the transmission of data, all can adopt existing techniques in realizing.
This valve pressure gauge also comprises locating sleeve 5, and this locating sleeve 5 is connected with circuit sleeve pipe 18, and above-mentioned locating sleeve 5 radially is provided with in built-in cam through hole and the cam through hole along it positioning cam 4 is housed, and positioning cam 4 is known part.
First seal groove that this pressure transmission hole is provided with first sealing ring 10 and is complementary with first sealing ring 10 along hollow body radial circumference near water nozzle 9 one sides; The seal groove that these locating sleeve 5 outer walls or circuit sleeve pipe 18 outer walls are provided with second sealing ring 6 and are complementary with second sealing ring 6 along circumference, first sealing ring 10, second sealing ring 6 are connected with the delivery port 11 of eccentric injection mandrel with the space of valve pressure gauge outer wall, the formation of injection well downhole flow regulator inwall.
Above-mentioned locating sleeve 5 other ends also are provided with the supporting seat 2 that is used for fixing, and above-mentioned supporting seat 2 external diameters are greater than the internal diameter of the eccentric orfice 3 of eccentric injection mandrel.
Above-mentioned valve pressure gauge also comprises fishing head 1, and above-mentioned fishing head 1 is installed on the supporting seat 2.
Above-mentioned second sealing ring 6, first sealing ring 10 are viton seal ring.
Preferable, supporting seat 2 external diameters are 22mm, circuit sleeve pipe 18 external diameter 17mm, and locating sleeve 5 external diameters are 19mm, the long-pending water nozzle 9 place's anchor rings that are not less than of foregoing circuit sleeve pipe 18 anchor rings amass.
Also can be provided with other sensors as required in the foregoing circuit sleeve pipe 18, for example temperature pick up can be monitored downhole temperature.
As shown in the figure, above-mentioned valve pressure gauge is installed on the water injection well eccentric injection mandrel 12 with fisher, and supporting seat 2 external diameters play the support fixation effect greater than the internal diameter of the eccentric orfice 3 of eccentric injection mandrel.Positioning cam 4 in the locating sleeve 5 is fixed the valve pressure gauge, prevents that hydraulic pressure is with valve pressure gauge jack-up.
When the water injection well operation; The valve pressure gauge is thrown on the eccentric orfice 3 of water injection well down-hole bridge-type eccentric injection well downhole flow regulator by fisher; Because the obstruction seals effect of second sealing ring 6, first sealing ring 10 is injected water and flowed into the manometric water nozzle 9 of valve by the water inlet on the eccentric injection mandrel, the pressure in this moment oil pipe is greater than strata pressure; Current are with jack-up valve ball 13 and flow through; Directly inject stream and press, inject water through being distributed in individual pressure transmission hole 7 in the pressure transmission 19 on the valve pressure gauge, after the delivery port 11 entering water filling target zones of eccentric injection mandrel with manometric pressure sensor engaged test.Pressure gauge circuit sleeve pipe is handled, is stored the pressure information of being gathered.
Shown in accompanying drawing valve structural sections 8 sectional drawings, when current jack-up valve ball 13, the space increases between 13 of valve ball 13 and the valve balls; Current pass through; But between valve ball 13 and the pressure transmission 19 valve ball baffle plate 20 is housed, valve ball baffle plate 20 stops valve ball 13 directly to impact pressure sensors in the pressure transmissions 19 to cause pressure measurement inaccurate or damage, can let current pass through smoothly on the other hand on the one hand; Valve ball baffle plate 20 can be netted, also can be annular or other shapes.
When water filling closing well when a certain amount of; Strata pressure is greater than the oil pipe internal pressure; Formation water will instead be told; Formation water gets into by second sealing ring 6 on the pressure gauge, valve pressure gauge outer wall and eccentric injection mandrel 12 inner wall space sections that first sealing ring 10 cuts off from the delivery port of eccentric injection mandrel 11, valve ball 13 is sealed on 13 of the valve balls tubing pressure and strata pressure separation through pressure transmission hole 7.Pressure sensor test this moment be that the recovery on stratum behind the closing well is pressed, treat a period of time stable after, the pressure sensor test be the static pressure on stratum.Pressure gauge circuit sleeve pipe is handled, is stored the pressure information of being gathered.
The water filling operation is accomplished, and uses fisher that the valve pressure gauge is salvaged to ground, and playback stored pressure information is also analyzed.
Owing to adopt technique scheme, this valve pressure gauge drops into eccentric injection mandrel 12, has both had the pressure measurement function, can replace blanking plug again.Both when normal water filling, the pressure value at water nozzle 9 places in the time of can obtaining water filling according to this numerical value and well head water injection pressure, can obtain sharp-tongued curve; Shutoff water nozzle 9 under the situation of not water filling is tested after the water filling stratum simultaneously and is recovered to press, and the pressure that records through this pressure gauge will can be used in well test analysis, obtain real more formation parameter.
Claims (9)
1. a valve pressure gauge comprises pressure transmission head, water nozzle, it is characterized in that: said valve pressure gauge also comprises the valve structural sections that is arranged between pressure transmission head, the water nozzle.
2. valve pressure gauge according to claim 1 is characterized in that: said valve structural sections comprises hollow body, valve ball, valve ball seat, and said valve ball seat is fixed in the hollow body, and valve ball is arranged at the valve ball seat away from water nozzle one side.
3. valve pressure gauge according to claim 2 is characterized in that: a said pressure transmission outer wall is distributed with at least one pressure transmission hole, is provided with pressure sensor in the pressure transmission head.
4. according to claim 2 or 3 described valve pressure gauges, it is characterized in that: said valve structural sections also comprises the valve ball baffle plate, and said valve ball baffle plate is arranged between pressure transmission head and the valve ball.
5. valve pressure gauge according to claim 4 is characterized in that: said valve pressure gauge also comprises the circuit sleeve pipe, and said circuit sleeve pipe is connected with the pressure transmission head.
6. valve pressure gauge according to claim 5; It is characterized in that: said valve pressure gauge also comprises locating sleeve; Said locating sleeve is connected with the circuit sleeve pipe, and said locating sleeve radially is provided with in built-in cam through hole and the cam through hole along it positioning cam is housed.
7. valve pressure gauge according to claim 6; It is characterized in that: said pressure transmission hole is provided with first sealing ring near water nozzle one side along hollow body radial circumference; Said locating sleeve outer wall or circuit sleeve outer wall are provided with second sealing ring along the radial circumference of locating sleeve, and said first sealing ring, second sealing ring are connected with the injection well downhole flow regulator delivery port with the space that valve pressure gauge outer wall, injection well downhole flow regulator inwall form.
8. valve pressure gauge according to claim 7 is characterized in that: the said locating sleeve other end also is provided with the supporting seat that is used for fixing, and said supporting seat external diameter is greater than the internal diameter of the eccentric orfice of eccentric injection mandrel.
9. valve pressure gauge according to claim 8 is characterized in that: said valve pressure gauge also comprises fishing head, and said fishing head is installed on the supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204854154U CN202391415U (en) | 2011-11-29 | 2011-11-29 | Pressure meter with valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204854154U CN202391415U (en) | 2011-11-29 | 2011-11-29 | Pressure meter with valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391415U true CN202391415U (en) | 2012-08-22 |
Family
ID=46666346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204854154U Expired - Lifetime CN202391415U (en) | 2011-11-29 | 2011-11-29 | Pressure meter with valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700468A (en) * | 2021-10-26 | 2021-11-26 | 四川圣诺油气工程技术服务有限公司 | Suspension device for underground pressure gauge |
-
2011
- 2011-11-29 CN CN2011204854154U patent/CN202391415U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700468A (en) * | 2021-10-26 | 2021-11-26 | 四川圣诺油气工程技术服务有限公司 | Suspension device for underground pressure gauge |
| CN113700468B (en) * | 2021-10-26 | 2022-01-21 | 四川圣诺油气工程技术服务有限公司 | Suspension device for underground pressure gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
|
| CX01 | Expiry of patent term |