CN2637729Y - Lifting type path stratigraphic tester - Google Patents
Lifting type path stratigraphic tester Download PDFInfo
- Publication number
- CN2637729Y CN2637729Y CN 03284515 CN03284515U CN2637729Y CN 2637729 Y CN2637729 Y CN 2637729Y CN 03284515 CN03284515 CN 03284515 CN 03284515 U CN03284515 U CN 03284515U CN 2637729 Y CN2637729 Y CN 2637729Y
- Authority
- CN
- China
- Prior art keywords
- ball valve
- axle
- test
- housing
- utility
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a lift-lower type latus rectum formation tester used for the formation test of oil exploration and consists of a case 7, a spindle 1 in the case, a hydraulic time-delay mechanism 2, a balance valve 3, a ball valve assembly 4, a ball valve 5 and a spring 6. The test has small physical dimension, big internal diameter and is beneficial to the test on low-productivity strata, and has wide application range, reliable and safe working performance; the field operation and maintenance are all convenient; the utility model adopts lift-lower test string for operation and needs no precharged high-purity and high-pressure nitrogen gas or cement truck, which considerably reduces the using cost.
Description
Technical field:
The utility model relates to a kind of downhole tool that is used for the oil exploration formation testing.
Background technology:
In the oil exploration process, need utilize formation tester successively to measure the data such as pressure, temperature, production capacity, fluidity on stratum as the downhole testing instrument.At present, the on-the-spot formation tester that uses is based on the MFE class, and latus rectum class testing instrument seldom.And; the present latus rectum class formation tester that uses exists the use cost height (need be at ground preliminary filling high-purity nitrogen; and need to be equipped with the high-pressure aerated pump in corresponding ground etc., need simultaneously to guarantee that with a cementing truck annular space pressure that drives a well can not be lower than design load), safety in utilization is poor, maintenance is difficult, use shortcomings such as inconvenience.
Summary of the invention:
The purpose of this utility model is to provide that a kind of use cost is lower, safety better, maintenance for ease of maintenaince, lifting type latus rectum formation tester easy to use.
The utility model is to realize like this.This kind formation tester is made up of housing, axle, hydraulic pressure time-delay mechanism, equalizing valve, ball valve assembly, ball valve, spring, be provided with axle in the housing, the axle below is provided with ball valve assembly, ball valve and spring successively, be provided with hydraulic pressure time-delay mechanism in the annular space between axle and the housing top, be provided with equalizing valve in the annular space of middle part.During use, with the down-hole string G.I.H, when tubing string continued pressurization after the packer set thereunder, the hydraulic pressure time-delay mechanism of this instrument started working with this tester, behind the slow descending certain distance of axle, open equalizing valve, the pressure that makes the ball valve both sides is near balance, at this moment, axle continues slowly descending, promote the ball valve assembly and move down, drive the ball valve half-twist, open it; During closing well, the aroused in interest axle of upper lifting pipe cornice is up, moves under the ball valve assembly act on when spring, makes the ball valve half-twist, and it is closed, and the axle continuation is up, closes equalizing valve, and tester cuts out.When needs drove a well once more, tubing string pressurization repeated above action, during closing well, and upper lifting pipe post once more then.So repeatedly, can successively test oil well.
The utility model appearance and size is little, and interior latus rectum is big, helps the low-productivity layer test, and is applied widely, and its reliable working performance is safe in utilization, and execute-in-place and maintenance are convenient.This tester adopts handling test string mode to operate, and need not preliminary filling high-purity, high pressure nitrogen, does not also need cementing truck, and use cost reduces greatly.
Description of drawings: accompanying drawing is a structural representation of the present utility model.
The specific embodiment: enforcement of the present utility model is described further below in conjunction with accompanying drawing.
As shown in the figure, the utility model is made up of axle 1, hydraulic pressure time-delay mechanism 2, equalizing valve 3, ball valve assembly 4, ball valve 5, spring 6, housing 7, its structure assembled relation is as follows: be provided with axle 1 in the housing 7, the axle below is provided with ball valve assembly 4, ball valve 5 and spring 6 successively, be provided with hydraulic pressure time-delay mechanism 2 in the annular space between axle 1 and housing 7 tops, be provided with equalizing valve 3 in the annular space of middle part.Wherein, axle 1 is as general as a hollow tube, and its upper end external diameter is identical with housing 7, and inner headed face has to connect and use screw thread, the round platform of mechanism's 2 usefulness when periphery is provided with one tapping and rolls in the middle part of the body, and the bottom internal diameter is bigger.
Claims (2)
1, a kind of lifting type latus rectum formation tester, form by housing (7), axle (1), hydraulic pressure time-delay mechanism (2), equalizing valve (3), ball valve assembly (4), ball valve (5), spring (6), it is characterized in that, be provided with axle (1) in the housing (7), axle (1) below is provided with ball valve assembly (4), ball valve (5) and spring (6) successively, be provided with hydraulic pressure time-delay mechanism (2) in the annular space between axle (1) and housing (7) top, be provided with equalizing valve (3) in the annular space of middle part.
2, lifting type latus rectum formation tester according to claim 1 is characterized in that, axle (1) is as general as a hollow column jacket, its upper end external diameter is identical with housing (7), and inner headed face is threaded, and body middle part periphery is provided with round platform one, and the bottom internal diameter is bigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03284515 CN2637729Y (en) | 2003-07-26 | 2003-07-26 | Lifting type path stratigraphic tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03284515 CN2637729Y (en) | 2003-07-26 | 2003-07-26 | Lifting type path stratigraphic tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637729Y true CN2637729Y (en) | 2004-09-01 |
Family
ID=34303816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03284515 Expired - Fee Related CN2637729Y (en) | 2003-07-26 | 2003-07-26 | Lifting type path stratigraphic tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637729Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250984B (en) * | 2007-11-14 | 2011-03-16 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Well-washing sand prevention integrated technique tubular pile |
| CN102359370A (en) * | 2011-07-04 | 2012-02-22 | 中国石油化工股份有限公司 | Intelligent tester |
-
2003
- 2003-07-26 CN CN 03284515 patent/CN2637729Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250984B (en) * | 2007-11-14 | 2011-03-16 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Well-washing sand prevention integrated technique tubular pile |
| CN102359370A (en) * | 2011-07-04 | 2012-02-22 | 中国石油化工股份有限公司 | Intelligent tester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201396103Y (en) | Packer | |
| CN2637729Y (en) | Lifting type path stratigraphic tester | |
| CN201723198U (en) | Two-way opening pressure differential sliding sleeve | |
| CN202596652U (en) | Recoverable hydraulic packer | |
| CN2779052Y (en) | Automatic sealing / unsealing water well sealing equipment capable of checking seal | |
| CN218934377U (en) | Compression type bidirectional anchoring bridge plug | |
| CN2234503Y (en) | Sliding sleeve balance circular pressure controlled ball test valve | |
| CN2841949Y (en) | Reverse differential pressure anchor packer | |
| CN2306312Y (en) | Well washing valve | |
| CN2651433Y (en) | Small diameter inflatable packer for water injection well | |
| CN2479188Y (en) | Packer | |
| CN200982156Y (en) | Aerating artesian well gas injection device | |
| CN200955378Y (en) | Full-bore low-resistance detection back-washing valve | |
| CN2156314Y (en) | Pressure and liquid increaser for deep well pump of oil suction machine | |
| CN2332812Y (en) | Positive washing well gas-lift packer | |
| CN2535559Y (en) | Locking type shrink-fit pressure controlling tester | |
| CN2660108Y (en) | Double balance cylinder compression packer | |
| CN2364213Y (en) | Oil well zonal gas lift valve | |
| CN2455925Y (en) | Mechanical double-anchoring packer | |
| CN2179909Y (en) | Pipe column sliding valve for underground multiple-zone construction | |
| CN2450382Y (en) | Bridge plug capable of fishing for oil well | |
| CN2616666Y (en) | Inclined well packer | |
| CN204691711U (en) | A kind of coiled tubing corer string | |
| CN2175827Y (en) | Logging device for meauring well-pressure | |
| CN2648044Y (en) | Mechanical type hydraulic oil pipe anchor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |