CN202673287U - Miniature open hole well cable formation tester - Google Patents
Miniature open hole well cable formation tester Download PDFInfo
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- CN202673287U CN202673287U CN 201220313048 CN201220313048U CN202673287U CN 202673287 U CN202673287 U CN 202673287U CN 201220313048 CN201220313048 CN 201220313048 CN 201220313048 U CN201220313048 U CN 201220313048U CN 202673287 U CN202673287 U CN 202673287U
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- cylinder
- joint
- backup
- formation tester
- open hole
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Abstract
The utility model discloses a miniature open hole well cable formation tester which comprises a ground control panel and a downhole detection mechanism, wherein the downhole detection mechanism is sequentially assembled by a horse tap, an electronic node, a balancing node, a hydraulic node and a mechanical node, a plurality of functional nodes are in threaded connection through an outer shell, the hydraulic node comprises a pressurized cylinder, low-pressure oil is converted into high-pressure oil through the pressurized cylinder, the hydraulic node comprises four one-way valves, and a mechanical backup node is a rhombic hinge force amplifying mechanism. With the adoption of the miniature open hole well cable formation tester, under the condition of being without increasing the pumping pressure, the backup sealing isolation force is strengthened, and the industrial difficulties of using a high-temperature pump and a high-pressure pump is avoided; and the backup force is strengthened through the mechanical mechanism by the rhombic force amplifying mechanism.
Description
Technical field
The utility model relates to a kind of Oil Test Equipment, relates in particular to a kind ofly to transfer to a kind of miniature open hole well cable formation tester in the open hole well by cable.
Background technology
The logging technique of extracting in kind is exactly that to extract the down-hole by equipment in kind, and ground experiment obtains physical parameter, strata pressure and stratum temperature distribution data in kind, obtains real record, for the exploration and development of oil gas provides reliable basis.What formation tester extracted is formation fluid (liquid or gas), formation tester the earliest is that Schlumberger company developed in 1974, Schlumberger company is referred to as RFT, Atlas company and Halliburton Company develop respectively functionally similar product, are called FMT and SFT.The instrument of each company is through for many years development, although performance respectively has quality, but apparatus structure is similar with major function, but downhole instrument high temperature high voltage resistant, shell special rolling-mill section manufacturing, sampling tube is arranged at the instrument bottom, at the open hole well build-in test, once going into the well to measure strata pressure as required heap of times, and can gather some formation fluid samples; The sampling cylindrical shell that prediction chamber and fixed capacity are arranged; Formation tester forecast pressure record comprises three different information, i.e. the of short duration strata pressure that drawing liquid brings out during liquid column hydrostatic pressure in the well, strata pressure and prediction changes.These information can be used for understanding in-place permeability, but differentiate the contact surface of liquid and gas in the oil reservoir, oil, water, estimate the vertical connectedness of oil reservoir, the industry characteristics of research oil reservoir and the mode etc. of successively decreasing of oil reservoir.The fluid that takes out can more accurately be determined the suspicious flow volume property, and the oil-gas Layer of identification conventional logging None-identified improves complex hydrocarbon layer interpretation coincidence rate, enlarges Exploration Domain.
The China's oil industry all is to introduce the formation tester product that this three major company produces at present, the domestic available instrument with function like this of not yet developing, price height, multiple faults, accessory and service hysteresis etc. bring very big inconvenience to the user, have also affected this instrument popularizing at home.
The utility model content
The purpose of this utility model provides that a kind of volume is little, power output is large, can be at the stratum detecting device of operation under the high temperature and high pressure environment.
The difficulty that exists in order to solve prior art, achieve the above object, the utility model provides a kind of miniature open hole well cable formation tester, formed by ground control panel and down-hole detection agency, described down-hole detection agency is assembled by halter, electronics joint, balance joint, hydraulic pressure joint and machinery joint successively, and described a plurality of function internodes are threaded by shell body, it is characterized in that, described hydraulic pressure joint comprises and converts low pressure oil to hydraulic oil by described pressurized cylinder by pressurized cylinder.
Preferably, described electronics joint comprises power supply, control module and measurement module;
Be provided with the high-temperature resistant rubber leather bag of sealing in the described balance joint, its inside is hydraulic oil, and the outside is high-pressure slurry;
Described hydraulic pressure joint comprises the fuel tank of built-in hydraulic pressure components and parts, and described hydraulic pressure components and parts comprise motor, pump, valve, cylinder and connecting line;
Described test joint comprises built-in pressure sensor, temperature pick up and contains water sensor;
Described machinery joint comprises that mechanical backup joint and pump take out joint.
Preferably, described hydraulic pressure joint comprises and replaces traditional pilot operated valve device by 4 one way valves, and described 4 one way valves are the bridge-type connection.
Preferably, described backup joint is comprised of backup cylinder and backup arm.
Preferably, described mechanical backup joint is a rhombus hinge booster mechanism, and described rhombus hinge booster mechanism comprises:
Hinge;
Back up plate is provided with the backup cylinder piston rod on it;
Packer, be positioned at described back up plate directly over;
Fixed block;
Cursor, the one end is connected with described backup cylinder piston rod by described fixed block, and the other end fixes on the described packer by described hinges fixing;
Move horizontally piece, the one end is connected with described back up plate by hinge, and its other end is connected with described backup cylinder piston rod by described hinge;
Righting is pulled, and the one end fixes on the described backup cylinder piston rod by described hinges fixing, and the other end fixes on described packer or the described back up plate by described hinges fixing.
Preferably, described pump is taken out joint and is comprised that pump takes out cylinder, and described pump is taken out cylinder and comprised:
Joint comprises top connection, center tap and lower contact;
The sample storage cylinder is arranged between described top connection and the center tap;
The prediction cylinder is arranged between described center tap and the lower contact, and is provided with piston rod between the cylinder shell between described prediction cylinder and the sample storage cylinder.
Preferably, described prediction cylinder volume is 10 milliliters, and described sample storage cylinder volume is 1 liter.
Preferably, described formation tester external diameter is 80 millimeters, and maximum the first transaction of a day's business is 250 millimeters.
Preferably, described miniature open hole well cable bottom tester comprises protective device, and it comprises that one is designed to the pin of weakness, and described pin ruptures when upper portable cable tension force reaches certain value.
The beneficial effects of the utility model are:
A kind of miniature open hole well cable formation tester described in the utility model comprises pressurized cylinder, improves in the pump pressure situation not needing, and has increased backup packing power, has avoided use high temperature, this industry difficult problem of high-pressure pump; Adopt the rhombus force-increasing mechanism, increased backup power by mechanical mechanism; A kind of miniature open hole well cable formation tester described in the utility model both had been fit to small diameter borehole, such as 118 general in industry wells, also was fit to 216 general large holes in the industry, and versatility is very strong.
The utility model formation tester has been installed high-speed response, high-precision quartz electronic pressure gauge, and strata pressure is measured accurately; The pretest chamber of variable volume is arranged and once gone into the well 10 milliliters and 1 liter pretest chamber of two kinds of specifications; Have pump to take out cylinder, realize the continuous pump row function, utilize continuous pump to discharge the F content of invading, this function is particularly important in the system that adopts oil base drilling fluid; Autonomous Design has been installed, has contained water sensor by high accuracy, the high-resolution of repeatedly testing, can selectively take a sample, determined the beginning sampling instant, obtained the truly formation fluid sample of higher-quality rejecting F impact; Have pulling force weakness protective device, work as Accidental occurrence, such as power supply trouble; when the backup arm that has opened can't draw in, upper portable cable tension force reached certain value, was designed to the pin fracture of weakness; backup arm draws in, makes instrument propose smoothly well, has reduced the risk that instrument is gone into the well.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is that pump described in the utility model is taken out the cylinder structure schematic diagram
Fig. 3 is backup arm structural representation described in the utility model
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further, so that those of ordinary skills are with reference to implementing according to this behind this manual.
As shown in Figure 1, the utility model indication formation tester has ground control panel 3 and down-hole detection agency two parts to consist of.Described ground control panel 3 is given down-hole detection instrument power supply, and the signal that transmit up the down-hole is collected, amplifies, put in order, is presented on the control panel 3 to observe and store for the operator, print and measure curve.Described down-hole detection agency has a plurality of function joints to consist of: halter 1, electronics joint 2, balance joint 4, hydraulic pressure joint 5, test joint, machinery joint 6 consist of, and described a plurality of function internodes are threaded by shell body.Halter 1 is the general part of well logging industry, plays the effect that is connected with load that is electrically connected; Electronics joint 2 comprises power supply, control module and measurement module, is electronic short piece underground power supply used, that control, measure; Balance saves the high-temperature resistant rubber leather bag of 4 built-in sealings, and inside is hydraulic oil, and the outside is high-pressure slurry, by the rubbery human body balance inside and outside cavity pressure, make instrument be sealed with assurance; Hydraulic pressure joint 5 is fuel tanks, the hydraulic pressure components and parts such as built-in motor, pump, valve, cylinder, pipeline; The test joint is the sensor pipe nipple of test fluid, built-in pressure sensor, temperature pick up, moisture sensor; Machinery joint 6 comprises that it is the pipe nipple of realizing that stratum packing and pump are taken out that mechanical backup joint and pump are taken out joint, and described backup joint is comprised of backup cylinder and backup arm.Be provided with pressurized cylinder on the described formation tester backup packing pipeline, packing required high pressure in stratum be can't help pump and is born, and converts low pressure oil to hydraulic oil by pressurized cylinder, greatly alleviates pump pressure, has improved the efficiency of pump and life-span; The pump evacuation system is without pilot operated valve device, and the one way valve that adopts 4 bridge-types to connect is finished, and simplifies the structure, and has reduced fault; Described formation tester motor length is 210.5mm, and diameter is 59.5mm.
As shown in Figure 3, described mechanical backup joint is a rhombus hinge booster mechanism, and described rhombus hinge booster mechanism comprises: comprise hinge 16; Back up plate 13 is provided with backup cylinder piston rod 14 on it; Packer 17, be positioned at described back up plate 13 directly over; Fixed block 20; Cursor 19, the one end is connected with described backup cylinder piston rod 14 by described fixed block 20, and the other end is fixed on the described packer 17 by described hinge 16; Move horizontally piece 18, the one end is connected with described back up plate 13 by hinge 16, and its other end is connected with described backup cylinder piston rod 14 by described hinge 16; Righting pulls 15, and the one end is fixed on the described backup cylinder piston rod 14 by described hinge 16, and the other end is fixed on described packer 17 or the described back up plate 13 by described hinge 16.
Wherein, described backup cylinder piston rod pushes away and moves horizontally piece 18, cursor 19 is opened, packer 17 and back up plate 13 are close to the borehole wall, and under the thrust hydraulic cylinder effect, push the borehole wall, and squeeze broken mud cake, make packer 17 interior hole path and combination of zones, packer 17 rubber blocking-up mud admission passage, what guarantee admission passage is formation fluid rather than mud; This rhombus device is designed with righting and pulls 15, righting board 15 1 ends are fixed on fixed block 20 by hinge 16 or move horizontally on the piece 18, and the other end also is fixed on packer 17 and the back up plate 13 by hinge 16, realize back up plate 13 and packer 17 fine motions, the restriction wide-angle tilt is conducive to packing; Rhombus is force-increasing mechanism when being pushed against the angle of slope greater than 45 °:
Simultaneously, the rhombus backup can strengthen the backup diameter, and described formation tester external diameter is 75mm, the maximum the first transaction of a day's business is 250mm, realized that the minor diameter instrument is by well, major diameter backup packing, reduce the risk that instrument is gone into the well and is hampered, also increased the versatility of instrument in the plurality of specifications well.
As shown in Figure 2, described pump is taken out joint and is comprised that pump takes out cylinder, integrates that pump is taken out, pretest chamber, sample storage function, and described pump is taken out cylinder and comprised: joint comprises top connection 7, center tap 8 and lower contact 9; Sample storage cylinder 10 is arranged between described top connection 7 and the center tap 8; Prediction cylinder 11 is arranged between described center tap 8 and the lower contact 9, and is provided with piston rod 12 between the cylinder shell between described prediction cylinder 11 and the sample storage cylinder 10.Described prediction cylinder volume is 10 milliliters, and described sample storage cylinder volume is 1 liter, and the stratum liquid that will get in the down-hole takes ground to.By guaranteeing that being got ground liquid is the undisturbed formation fluid, this stratum tester has the pump row function, and pump is taken out cylinder and moved back and forth realization pump suction function by piston rod.
Miniature open hole well cable formation tester as shown in Figure 1, the specific works step is as follows: after the instrument power supply, two pumps of two special motor tandem drives, operation by the microprocessor control module, under driving, the hydraulic oil that the hydraulic pressure joint is supplied with drives the action of backup hydraulic cylinder piston by solenoid operated directional valve, piston rod 12 promotes the rhombus backup, it is opened, by the pressure of hydraulic cylinder, 17 mouthfuls of push-tights of packer on the borehole wall, after the fluid detection system validation packing success, pass through solenoid operated directional valve, 10 milliliters or 1 liter of pretest chamber are opened in the action of driving pump drawing liquid cylinder pressure, measure strata pressure.After strata pressure recovered, the switch pump was taken out electromagnetic valve, the work of pump absorbing/exhausting system, and test fluid character constantly, and when sensor was judged fluid and is pure ground liquid, pump suction work was finished.Backup arm is regained in the instrument, and instrument is pulled out well, finishes test assignment one time.It is pointed out that miniature open hole well cable formation tester described in the utility model once goes into the well, can not limit number of times to measure strata pressure, take out a fluid-like.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in manual and the embodiment, it can be applied to the various fields of the present utility model that are fit to fully, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend of describing.
Claims (9)
1. miniature open hole well cable formation tester, formed by ground control panel and down-hole detection agency, described down-hole detection agency is assembled by halter, electronics joint, balance joint, hydraulic pressure joint and machinery joint successively, described a plurality of function internode is threaded by shell body, it is characterized in that, described hydraulic pressure joint comprises and converts low pressure oil to hydraulic oil by described pressurized cylinder by pressurized cylinder.
2. miniature open hole well cable formation tester as claimed in claim 1 is characterized in that,
Described electronics joint comprises power supply, control module and measurement module;
Be provided with the high-temperature resistant rubber leather bag of sealing in the described balance joint, its inside is hydraulic oil, and the outside is high-pressure slurry;
Described hydraulic pressure joint comprises the fuel tank of built-in hydraulic pressure components and parts, and described hydraulic pressure components and parts comprise motor, pump, valve, cylinder and connecting line;
Described test joint comprises built-in pressure sensor, temperature pick up and contains water sensor;
Described machinery joint comprises that mechanical backup joint and pump take out joint.
3. miniature open hole well cable formation tester as claimed in claim 1 is characterized in that, described hydraulic pressure joint comprises and replaces traditional pilot operated valve device by 4 one way valves, and described 4 one way valves are the bridge-type connection.
4. miniature open hole well cable formation tester as claimed in claim 1 is characterized in that, described backup joint is comprised of backup cylinder and backup arm.
5. miniature open hole well cable formation tester as claimed in claim 4 is characterized in that, described mechanical backup joint is a rhombus hinge booster mechanism, and described rhombus hinge booster mechanism comprises:
Hinge;
Back up plate is provided with the backup cylinder piston rod on it;
Packer, be positioned at described back up plate directly over;
Fixed block;
Cursor, the one end is connected with described backup cylinder piston rod by described fixed block, and the other end fixes on the described packer by described hinges fixing;
Move horizontally piece, the one end is connected with described back up plate by hinge, and its other end is connected with described backup cylinder piston rod by described hinge;
Righting is pulled, and the one end fixes on the described backup cylinder piston rod by described hinges fixing, and the other end fixes on described packer or the described back up plate by described hinges fixing.
6. miniature open hole well cable formation tester as claimed in claim 1 is characterized in that, described pump is taken out joint and comprised that pump takes out cylinder, and described pump is taken out cylinder and comprised:
Joint comprises top connection, center tap and lower contact;
The sample storage cylinder is arranged between described top connection and the center tap;
The prediction cylinder is arranged between described center tap and the lower contact, and is provided with piston rod between the cylinder shell between described prediction cylinder and the sample storage cylinder.
7. miniature open hole well cable formation tester as claimed in claim 5 is characterized in that, described prediction cylinder volume is 10 milliliters, and described sample storage cylinder volume is 1 liter.
8. miniature open hole well cable formation tester as claimed in claim 1 is characterized in that, described formation tester external diameter is 80 millimeters, and maximum the first transaction of a day's business is 250 millimeters.
9. miniature open hole well cable formation tester as claimed in claim 1 is characterized in that, comprises protective device, and it comprises that one is designed to the pin of weakness, and described pin ruptures when upper portable cable tension force reaches certain value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313048 CN202673287U (en) | 2012-06-28 | 2012-06-28 | Miniature open hole well cable formation tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313048 CN202673287U (en) | 2012-06-28 | 2012-06-28 | Miniature open hole well cable formation tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673287U true CN202673287U (en) | 2013-01-16 |
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ID=47494197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220313048 Expired - Fee Related CN202673287U (en) | 2012-06-28 | 2012-06-28 | Miniature open hole well cable formation tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569655A (en) * | 2015-12-31 | 2016-05-11 | 中国海洋石油总公司 | Pump exhausting module and logging instrument |
| CN111236839A (en) * | 2020-03-10 | 2020-06-05 | 中石化江汉石油工程有限公司测录井公司 | Hydraulic sidewall contact device of cased well cable logging tractor |
-
2012
- 2012-06-28 CN CN 201220313048 patent/CN202673287U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569655A (en) * | 2015-12-31 | 2016-05-11 | 中国海洋石油总公司 | Pump exhausting module and logging instrument |
| CN111236839A (en) * | 2020-03-10 | 2020-06-05 | 中石化江汉石油工程有限公司测录井公司 | Hydraulic sidewall contact device of cased well cable logging tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |