CN103334744A - Cable formation tester - Google Patents
Cable formation tester Download PDFInfo
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- CN103334744A CN103334744A CN2013103117012A CN201310311701A CN103334744A CN 103334744 A CN103334744 A CN 103334744A CN 2013103117012 A CN2013103117012 A CN 2013103117012A CN 201310311701 A CN201310311701 A CN 201310311701A CN 103334744 A CN103334744 A CN 103334744A
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Abstract
The invention provides a cable formation tester which comprises a control module, a mechanical module, an underground power supply module, a quartz crystal module, a fluid identification module, a pumping module and a sampling module, wherein the underground power supply module supplies power for other modules. The cable formation tester has the beneficial effects that repeated formation pressure measurement can be carried out in one trip; and original fluid of a formation can be obtained by fluid identification. The pressure, effective permeability, productivity, the communication condition, the failure condition and the like of the formation are evaluated and basis is provided for establishing the optimal well completion and development scheme.
Description
Technical field:
The invention belongs to the logger field, be specifically related to a kind of novel cable type formation tester.
Background technology:
The RFT that the applicant has developed has had the function of formation fluid sampling, but does not have the function of fluid identification.Because the stratum with the ability of preserving is at mud fluid column pressure above Ground during stressor layer, the F that just has is in various degree invaded the stratum, so we are when carrying out formation fluid sampling, because the restriction that the sample cylindrical shell is long-pending, often the sample tube still can not be got real formation fluid after getting and expiring, and can only get the F that invades wellbore.If therefore have a kind of can be to the identification of the fluidity mass-energy look-ahead analysis on the streamline that enters the sample tube before formation fluid sampling, if the liquid on the streamline belong to F, then with a pump it is pumped out in the mud in the well; If by the fluid analyser on the streamline, be to belong to or major part belongs to the stratum original fluid after the identification, at this moment, the operation engineer then can import sampling cylinder with original fluid in the stratum on its streamline, thereby reaches the real purpose of obtaining the stratum original fluid.This finds fast that in petroleum exploration and development process petroleum resources will play an important role.
In the prior art, the high end instrument of well logging---the dynamic formation tester of " MDT " modular that France Schlumberger company has, one of them very important fluid identification module are to adopt OFA/LFA (optical fluid analyzer) to be used in well before the formation fluid sampling or a kind of instrument that the fluid-like on the flow line is analyzed, identified in the sampling process; U.S. Halliburton Company also has same quasi-instrument, but identification body stream is to adopt the characteristic nmr of fluid to reach the purpose of fluid identification.
Summary of the invention:
The present invention provides the cable type formation tester in order to overcome deficiency of the prior art, can obtain the stratum original fluid by fluid analysis.
The invention provides a kind of cable type formation tester, comprise control module, mechanical module, down-hole power module, quartz crystal module, fluid identification module, pump pump drainage module and sampling module, above-mentioned each module is connected successively.
Further, described down-hole power module comprise 250VAC is transformed to+15VDC ,-15VDC ,+the auxilliary power supply of direct current of three road direct current main power sources of 5VDC and 400VAC is transformed to+50VDC;
Further, be provided with CQG quartz crystal pressure transducer, data acquisition and telecommunication circuit in the described quartz crystal module;
Further, described fluid identification module comprises fluid resistivity test cell, fluid density test cell and fluid specific retention test cell;
Further, described fluid resistivity test cell comprises resistivity sensor, and the fluid density test cell comprises density sensor, and fluid specific retention test cell comprises the specific retention sensor;
Further, described pump pump drainage module comprises hydraulically powered piston high-density pump and hydraulic pressure and fluid flow control valve group;
Further, described hydraulic pressure and fluid flow control valve group comprise 4 mud reversal valves and 2 flow direction control valves;
Further,, described sampling module comprises a stepper motor driven sealing choke valve, cooperates with described pump pump drainage module to realize that the sampling of air cushion buffering or pump drive sampling;
Further, described pump pump drainage module have efflux, make a bet, interior suction, on annotate four kinds of working methods, be respectively from the sample line pump drainage to pit shaft, from the pit shaft pump drainage to sample line, pump drive sampling from up to down, that pump drives sampling is bottom-up;
Further, wherein in control module, also increased the auxilliary electric switching control function of 400VAC, switched by a relay, constant close contact connects probe section motor, and constant open contact transmits auxilliary electricity downwards, when needing the work of pump pump drainage, ground sends instructions earlier, the relay adhesive, probe section motor disconnects, and then for auxilliary.
The invention has the beneficial effects as follows:
A) in well logging once, repeatedly duplicate measurements mud pressure (Pm), strata pressure (Pf), in-place permeability (K), SG strain gauge and CQG crystal pressure gauge are measured simultaneously;
B) to selected reservoir, pump pump drainage formation fluid is discharged well mud filtrate, reduces to pollute;
C) on-line monitoring fluid line sample, analysing fluid;
D) to the sampling of reservoir fluid sample, can carry out routine sampling; Also can carry out pump and drive the superpressure sampling;
E) pump pump drainage module have efflux, make a bet, interior suction, on annotate four kinds of working methods.As required, also can be used for multiple job that requires special skills, drive twin packer as adopting well mud, inject purposes such as working fluid to the borehole wall.
Figure of description:
Fig. 1 is apparatus structure block diagram of the present invention;
Fig. 2 is fluid identification module work schematic diagram of the present invention;
Fig. 3 is pump pump drainage module work schematic diagram of the present invention;
Fig. 4 is sampling module work schematic diagram of the present invention.
The specific embodiment:
Following content will elaborate to the specific embodiment of the present invention in conjunction with Figure of description:
The operating principle of repetition formula cable formation testing instrument is that the hydraulic pump by ground system control CDM section provides hydraulic power to each hydraulic valve piece, make instrument produce the backup action, short piston drives probe and packer moves on to the borehole wall one side, the long-term job plug moves on to opposite side and supports the borehole wall, but the mud cake in packer and the borehole wall forms the seat envelope, probe inserts the stratum, forms the path that leads to the instrument internal fluid line for formation fluid.
Referring to Fig. 1, tester comprises a plurality of modules, is specially control module, mechanical module, down-hole power module, quartz crystal module, fluid identification module, pump pump drainage module and sampling module, and each module links to each other successively.
Control module wherein: receive downlink command, the control mechanical module is carried out backup, pretest, recovery action, gathers and upload survey data; Also increased the auxilliary electric switching control function of 400VAC in control module, switched by a relay, constant close contact connects probe section motor, constant open contact transmits auxilliary electricity downwards, and when needing the work of pump pump drainage, ground sends instructions earlier, the relay adhesive, probe section motor disconnects, and then for auxilliary.Probe section motor and pump pump drainage switch power supply, do not work simultaneously, switch earlier, after add auxilliary.
Mechanical module wherein: major function is to carry out backup, pretest, sampling and recovery action under the control of control module.Formation sample enters instrument internal by sample line, but the pressure during the strain gauge of installing in the sample line and the quartz crystal pressure gauge monitor test, formation fluid aspirates with different rates in the pretest chamber of two each 10ml of volume, during the pretest, the pressure of ground instrument record falls and corresponding pressure build-up curve calculates for strata pressure and permeability data are provided.
Down-hole power module wherein: major function be 250VAC master's electricity is transformed to+15VDC ,-15VDC ,+the 5VDC three-way direct current power supply, the auxilliary electricity of 400VAC is transformed to+50VDC, be transferred to successively the quartz crystal module and below each module use; And upwards transmit the supply voltage monitored data.
Quartz crystal module wherein: adopt the MDC standard interface, inner CQG quartz crystal pressure transducer, data acquisition and the telecommunication circuit of installing is used for gathering and the transmission pressure data.
Fluid identification module wherein: referring to accompanying drawing 2, adopt the MDC standard interface, inner resistivity sensor, density sensor, specific retention sensor are installed, and measuring instrument circuit, data acquisition and telecommunication circuit.When formation fluid sample process fluid line, can obtain the formation fluid corresponding parameters, help further the situation on stratum to be made an appraisal.
Wherein pump pump drainage module comprises: referring to accompanying drawing 3, hydraulically powered piston high-density pump and hydraulic pressure thereof and fluid flow control valve group, be specially a hydraulically powered double acting mud pump barrel, one group of mud reversal valve (4) and one group of flow direction control valve (4), have efflux, make a bet, interior suction, on annotate four kinds of working methods, be specially pattern 1; From the sample line pump drainage to pit shaft; Pattern 2: (be used for the twin packer working method) from the pit shaft pump drainage to sample line; Mode 3: pump drives sampling from up to down (probe is positioned at the top of sampling module); Pattern 4: pump drives sampling bottom-up (probe is positioned at the bottom of sampling module).Utilize pattern 4, when air cushion is adopted in the working fluid bottom in the sample tube, also can inject the working fluid that leaves the sample tube in advance in to the stratum.When the pump pump drainage effluxes work, can enter pit shaft to the F that infiltrates in the stratum by high-power pump, thereby obtain more true and reliable formation sample, when making a bet work, formation fluid can be squeezed in the sample tube of sampling module.Adopt the MDC standard interface, main body is for having four kinds of mode of operations, and can carry out the pattern switching by ground control.Specifically referring to table 1.
Table 1
| Mode of operation | Valve 1 | Valve 2 | Valve 3 | The combination of fluid pump | The control function |
| Pattern 1 | Conducting | End | Conducting | A→B | The fluid line pump drainage is to pit shaft |
| Pattern 2 | Conducting | End | Conducting | B→A | The pit shaft pump drainage is to fluid line |
| Mode 3 | End | Conducting | End | B→A | Pump drives sampling from top to bottom |
| Pattern 4 | End | Conducting | End | A→B | Pump drives sampling from bottom to top |
Wherein sampling module (referring to Fig. 4) adopts the MDC standard interface, and sampling module comprises a stepper motor driven sealing choke valve, by controlled valve and with pump pump drainage module compounding practice, can realize routine sampling, can realize that also pump drives sampling.Aspect the drive form of fluid conveying, there are routine sampling and pump to drive two kinds of patterns of sampling.Routine sampling is the sampling of air cushion buffering; Pump drives to take a sample to cooperate with pump pump drainage module and carries out, and formation fluid is squeezed into sampling tube under the driving of high-pressure pump.The conversion of two kinds of patterns needs pre-configured on ground, and when adopting pump to drive sampling, sampling tube piston lower end needs water filling, and an obstruction is replaced with overflow valve.Sampling pressure control aspect has manually and automatic function.
In addition, described tester also comprises MDC standard interface base cone, includes the terminal resistance of communication bus.The electric bus of MDC STD bus adopts 22 core electric connectors, and standard interface comprises sample line interface or adaptable interface.
This instrument is modularized design, be exactly the order that can arbitrarily change instrument below power supply, and an instrument does not influence the work of a whole set of instrument under bad situation.
The general technical parameter of instrument:
Environment temperature: the highest: 175 ℃; Environment stress: maximum: 140MPa; Maximum pushes away
By power: 30kN; Pretest chamber's volume: two conventional 10cc X 2; The basic external diameter of instrument: Φ 120mm(probe segment Φ 127mm); Measure borehole size: 152.4mm ~ 374.7mm(6 " ~ 14.75 "); Add extensible arm and can reach 22 ".Downhole instrument gross weight: about 600kg; Sample is gathered quantity: hang several sample tubes at most, determined by cable intensity and borehole condition.Impact: 100g, three-dimensional; Vibration: 7.5g, three-dimensional, 10～60Hz; Downhole instrument length overall: two sampling tubes of about 20.5m().
Pressure and temperature is measured: strain gauge (SG) pressure measurement range: 0～20000psi;
Pressure measxurement resolution ratio: 0.1psi; Pressure measurement accuracy: ± 0.13%F.S.Quartz crystal pressure gauge: (CQM) range: 0～20000psi; Precision: 0.01%F.S ± 2 PSI; Resolution ratio: 0.01psi; Repeatability: 0.01%F.S.Temperature survey: range :-25～250 ℃; Precision: ± 1 ℃; Resolution ratio: 0.01 ℃.
Fluid identification module (FAM): 4.1 resistivity sensors are measurement category a): R=0.01～20 Ω/m; B) precision: ± 5%; (0.1-2 Ω/m); ± 10%: all the other scopes.C) resolution ratio: 0.001 Ω/m.4.2 the specific retention sensor is measurement category a): 0-100%; Certainty of measurement: ± 3%; Resolution ratio: 0.1% 4.3 density (flow) sensor (flow is only for reference) measurement category: 0.01g/cm3～2.0g/cm3; Precision: ± 0.02g/cm3; Resolution ratio: 0.001g/cm3.
Pump pump drainage module (POM): hydraulic system parameters oil supply pressure: 24MPa; Oil sources flow: 1000 ~ 2500ml/min; Fluid pump drainage parameter operting differential pressure: maximum: 28MPa(4000psi); Pump drainage flow: 200 ~ 2000ml/min.
Sampling module (SAM) working method: mode one, the routine sampling of air cushion buffering; Mode two, the water cushion buffering, pump pump drainage module is clamp-oned.(the single-phase sampling of superpressure) sampling volume: dischargeable capacity: 4100mL.
Formation tester of the present invention has following function:
A) in well logging once, repeatedly duplicate measurements mud pressure (Pm), strata pressure (Pf), in-place permeability (K), SG strain gauge and CQG crystal pressure gauge are measured simultaneously;
B) to selected reservoir, pump pump drainage formation fluid is discharged well mud filtrate, reduces to pollute;
C) on-line monitoring fluid line sample, analysing fluid;
D) to the sampling of reservoir fluid sample, can carry out routine sampling; Also can carry out pump and drive the superpressure sampling;
E) pump pump drainage module have efflux, make a bet, interior suction, on annotate four kinds of working methods.As required, also can be used for multiple job that requires special skills, drive twin packer as adopting well mud, inject purposes such as working fluid to the borehole wall.
The cable type formation tester of the present invention strata pressure that can carry out repeatedly of once going into the well is measured, can get the real fluid on stratum by fluid identification, the pressure on stratum, effective permeability, productivity ratio, connection situation, depleted situation etc. are estimated, provided foundation for setting up best completion and development plan.
Above content be in conjunction with the specific embodiment to further describing that the present invention does, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a cable type formation tester is characterized in that, described tester comprises control module, mechanical module, down-hole power module, quartz crystal module, fluid identification module, pump pump drainage module and sampling module, and above-mentioned each module is connected successively.
2. tester according to claim 1 is characterized in that, wherein said down-hole power module comprise 250VAC is transformed to+15VDC ,-15VDC ,+the auxilliary power supply of direct current of three road direct current main power sources of 5VDC and 400VAC is transformed to+50VDC.
3. tester according to claim 1 is characterized in that, is provided with CQG quartz crystal pressure transducer, data acquisition and telecommunication circuit in the described quartz crystal module.
4. tester according to claim 1 is characterized in that, described fluid identification module comprises fluid resistivity test cell, fluid density test cell and fluid specific retention test cell.
5. tester according to claim 1 is characterized in that, described fluid resistivity test cell comprises resistivity sensor, and the fluid density test cell comprises density sensor, and fluid specific retention test cell comprises the specific retention sensor.
6. tester according to claim 1 is characterized in that, described pump pump drainage module comprises hydraulically powered piston high-density pump and hydraulic pressure and fluid flow control valve group.
7. tester according to claim 6 is characterized in that, described hydraulic pressure and fluid flow control valve group comprise 4 mud reversal valves and 2 flow direction control valves.
8. tester according to claim 1 is characterized in that, described sampling module comprises a stepper motor driven sealing choke valve, cooperates with described pump pump drainage module to realize that the sampling of air cushion buffering or pump drive sampling.
9. tester according to claim 6, it is characterized in that, described pump pump drainage module have efflux, make a bet, interior suction, on annotate four kinds of working methods, be respectively from the sample line pump drainage to pit shaft, from the pit shaft pump drainage to sample line, pump drive sampling from up to down, that pump drives sampling is bottom-up.
10. tester according to claim 1, it is characterized in that, wherein also increased the auxilliary electric switching control function of 400VAC in control module, switched by a relay, constant close contact connects probe section motor, constant open contact transmits auxilliary downwards, when needing the work of pump pump drainage, ground sends instructions the relay adhesive earlier, probe section motor disconnects, and then for auxilliary.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103117012A CN103334744A (en) | 2013-07-23 | 2013-07-23 | Cable formation tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103117012A CN103334744A (en) | 2013-07-23 | 2013-07-23 | Cable formation tester |
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| CN103334744A true CN103334744A (en) | 2013-10-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107567532A (en) * | 2015-03-11 | 2018-01-09 | 沙特阿拉伯石油公司 | Lifted by nitrogen, production logging and recovery test extend the method for carrying out well testing operation with single coiled tubing |
| CN113136885A (en) * | 2021-04-02 | 2021-07-20 | 远强地基工程(天津)股份有限公司 | Cement soil waterproof curtain construction process with desulfurized gypsum cement as curing agent |
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| US20100192684A1 (en) * | 2009-02-02 | 2010-08-05 | Xu Wu | Phase separation detection in downhole fluid sampling |
| CN102619503A (en) * | 2012-04-11 | 2012-08-01 | 上海大学 | Cable stratum tester |
| CN202451148U (en) * | 2011-12-31 | 2012-09-26 | 北京环鼎科技有限责任公司 | Downhole formation fluid analyzer |
| CN102979493A (en) * | 2012-12-04 | 2013-03-20 | 尤尼斯油气技术（中国）有限公司 | Gas injection system for combustion of oil in-situ under super-critical pressure and gas injection method thereof |
| CN203452781U (en) * | 2013-07-23 | 2014-02-26 | 北京环鼎科技有限责任公司 | Cable type stratum tester |
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2013
- 2013-07-23 CN CN2013103117012A patent/CN103334744A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982194Y (en) * | 2006-12-05 | 2007-11-28 | 北京华能通达能源科技有限公司 | Cable and pumping type stratum testing sampler |
| US20100192684A1 (en) * | 2009-02-02 | 2010-08-05 | Xu Wu | Phase separation detection in downhole fluid sampling |
| CN202451148U (en) * | 2011-12-31 | 2012-09-26 | 北京环鼎科技有限责任公司 | Downhole formation fluid analyzer |
| CN102619503A (en) * | 2012-04-11 | 2012-08-01 | 上海大学 | Cable stratum tester |
| CN102979493A (en) * | 2012-12-04 | 2013-03-20 | 尤尼斯油气技术（中国）有限公司 | Gas injection system for combustion of oil in-situ under super-critical pressure and gas injection method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107567532A (en) * | 2015-03-11 | 2018-01-09 | 沙特阿拉伯石油公司 | Lifted by nitrogen, production logging and recovery test extend the method for carrying out well testing operation with single coiled tubing |
| CN113136885A (en) * | 2021-04-02 | 2021-07-20 | 远强地基工程(天津)股份有限公司 | Cement soil waterproof curtain construction process with desulfurized gypsum cement as curing agent |
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Application publication date: 20131002 |