WO2003098000A1 - Procede pour determiner, par startes, la qualite de reserve d'un puits de petrole - Google Patents
Procede pour determiner, par startes, la qualite de reserve d'un puits de petrole Download PDFInfo
- Publication number
- WO2003098000A1 WO2003098000A1 PCT/FR2003/001507 FR0301507W WO03098000A1 WO 2003098000 A1 WO2003098000 A1 WO 2003098000A1 FR 0301507 W FR0301507 W FR 0301507W WO 03098000 A1 WO03098000 A1 WO 03098000A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- well
- stratum
- pressure
- flow
- low
- 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.)
- Ceased
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/008—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by injection test; by analysing pressure variations in an injection or production test, e.g. for estimating the skin factor
Definitions
- the present invention relates to methods for determining the reserve quality of an oil well discharging a fluid coming from a producing layer, by measuring the response R of the well and more particularly a method for evaluating the hydraulic potential (in the simplest case, determination of the transmissivity or the average permeability, the skin of damage and the pressure of local deposit) of the section of a porous layer filled with an incoming or outgoing mobile effluent delimited by two dimensions respectively z low and ⁇ high-
- productivity index IP of the well which depends on the radius of the well r, the radius of drainage R e of the well, the viscosity ⁇ of the recoverable oil, but also of the transmissivity of the producing layer which is defined as the product of its permeability k by its height h, as well as a possible clogging of the pores of the rock near the wall of the well which is quantified by a dimensionless parameter S commonly qualified by technicians by the generic term "SKIN".
- This productivity index is
- IP productivity index directly measures the ease with which oil can flow to the well under the effect of a drawdown
- a (z w ., ⁇ ) i e 4 tkeibe 0 () kelke ⁇ ( ⁇ ) - kelbe ⁇ ( ⁇ ) keIkeo ()] a va va va va va va
- ⁇ - is the a-dimensional radius of the area
- ⁇ sinusoidal and ⁇ is the diffusivity of the producing layer equal to, ⁇ ⁇ x representing the porosity of the producing layer, ⁇ representing the viscosity of the fluid and Ct representing the total compressibility of the fluid;
- Ctf representing the total compressibility of the fluid in the fracture
- S f is a possible skin existing between the bottom of the well and the entrance to the fracture.
- the present invention therefore aims to improve the prior methods and those defined in particular above to assess the reserve quality of an oil well or the like, and to implement a method which, while being easy to be implemented implemented, makes it possible to obtain this assessment at all levels of the well and regardless of the type of damage to the producing layer, using measures which can be interpreted with a small percentage of errors or uncertainty , and more precisely a method for evaluating the hydraulic potential (in the simplest case, determining the transmissivity or average permeability, the damage skin and the local reservoir pressure) of the section of a stratum porous filled with an incoming or outgoing mobile effluent delimited by two dimensions respectively z low and
- the subject of the present invention is a method for evaluating the hydraulic potential of the section of a porous stratum filled with a mobile effluent entering or leaving bounded by two dimensions respectively Zbas and Z h aut, characterized in that '' it consists in generating a modulation periodic flow of the well, to descend into the well and activate it for a few periods at the fixed depth Z have a probe fitted with: i) a precise location device, either in relation to the geological series by gamma ray detector known to technicians under the English terminology "Gamma-Ray” or in relation to the elements of the well by casing sleeve detector known to technicians under the acronym "CCL", ii) a clock, iii) physical sensors capable of less measure the flow of the effluent in the well, the pressure, the temperature, the average density, the pressure drop gradient, to be extracted, from these measurements: i) the low amplitude ⁇ Q of the sinusoidal component of the modulation of the flow rate relative to one T
- PLT a probe well known to those skilled in the art in the petroleum field and abbreviation of the English expression "Production Logging Tool”, which is a fine production logging device comprising in particular:
- controllable shutter making it possible to modulate the value of the passage section of the conduit which forms the well at the level of the oil layers.
- This controllable shutter can for example be constituted by a sleeve comprising fins which can be deployed by means of a motor from a distant point. It can also be constituted by a plurality of walls arranged with one another to form a cone at variable angle, the sliding of the walls with respect to each other being able to be controlled by means of a towing cable.
- Such a flow meter is known in itself and can be constituted diagrammatically by a sleeve in which is arranged a measurer comprising a propeller, or reel according to the terminology of the technicians, and means for counting the number of turns of this propeller per unit of time, with this sleeve possibly being associated with a deflector in order to capture all of the fluid flowing in the conduit and force it to pass entirely through the sleeve.
- the flow meter is arranged to deliver at its output a signal representative of the flow of the fluid passing through it.
- a pressure sensor well known in itself constituted for example from strain gauges based for example on a mineral crystal such as quartz or sapphire, or the like. It is capable of delivering at its output a signal representative of the pressure of the fluid in the conduit.
- these three elements are assembled with each other so that they can be lowered from the well head by any connecting means, for example a cable or the like, up to 'at the level of the producing layers. They are also combined so that, when they are lowered into the well, the flow meter and the pressure sensor are located below the controllable shutter.
- these three elements are connected by a bus line which makes it possible, from a processing unit, to control the shutter, possibly the starting of the flow meter and the pressure sensor, but also to receive and process the signals emitted by these last two elements.
- a clock which determines a single time to which the flow and pressure measurements of the fluid will refer.
- the method consists first of all in controlling the shutter to vary the passage cross section of the conduit between two minimum and maximum values. according to a sinusoidal mathematical law of pulsation t ⁇ , the minimum value not being zero so as never to completely block the duct and to allow the fluid to continue to flow during the entire measurement time.
- the flow meter and the pressure sensor are not in a permanent operating state, they are turned on for a few periods of the mathematical function of the shutter control. They deliver at their output signals respectively representative of the variations in flow and pressure of the fluid in the well below the obturator, but at the location of the two other elements.
- the curves of these variations are sinusoidal functions of the same period T as that of the control of the shutter, but out of phase with one another.
- the joint measurement of the phase shift between these two signals and the ratio of their respective amplitudes makes it possible to deduce simultaneously a value which is representative of the permeability of the producing layers below the controllable shutter which are located between the level of the flow meter and the bottom of the well as well as a value which is representative of clogging.
- the method according to the invention for the evaluation of the hydraulic potential (in the simplest case, determination of the transmissivity or of the average permeability, of the damage skin and of the local reservoir pressure) of the section of a porous stratum filled with a mobile effluent entering or leaving bounded by two dimensions respectively Zbas and Zhaut, consists:
- a periodic modulation not necessarily sinusoidal, or a superposition of periodic modulations of different periods, of the flow rate of the well.
- This modulation can be obtained using either a direct or indirect mechanical adjustable or servo and programmable device independent of the previously described probe placed on the "tubing" production line anywhere downstream of the sensor (s).
- an adjustable mechanical device or servo and programmable advantageously placed at the top of the probe either of an adjustable mechanical device or servo and programmable advantageously placed at the top of the probe.
- an "adjustable nozzle” or pump can be used surface programmable (most practical) or possibly in the well in the case of an "anchored memory PLT”.
- An indirect device mentioned above consists for example of a programmable servo pump for injecting or withdrawing fluid at the surface;
- a "PLT” or “precise PLT” probe provided i) with a precise location device, either in relation to the geological series by a gamma ray detector known as “Gamma-Ray” or relative to the well element "CCL” (a “CCL” is a tool well known to those skilled in the petroleum field and is the abbreviation of the English expression “Casing Collar Locator “or in French” casing sleeve detector "), ii) a clock, iii) various physical sensors making it capable of measuring certain characteristics of the flow of effluent in the well, in particular the flow total, the gas flow, the liquid flow, the aqueous flow, the hydrocarbon flow, the pressure, the temperature, the average density or the pressure drop gradient and, iv) either from a memory allowing it to store the values measured as a function of time ("PLT with memory” d suspended with a
- both the stabilized bottom pressure Pp and the net flow Qst r ate from the stratum were measured.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Geophysics And Detection Of Objects (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2487090A CA2487090C (fr) | 2002-05-22 | 2003-05-19 | Procede pour determiner, par startes, la qualite de reserve d'un puits de petrole |
| DE60336466T DE60336466D1 (de) | 2002-05-22 | 2003-05-19 | Verfahren zur schichtweisen bestimmung der vorratsqualität eines ölbohrlochs |
| US10/515,398 US7257491B2 (en) | 2002-05-22 | 2003-05-19 | Method of determining the per strata reserve quality of an oil well |
| AU2003258765A AU2003258765A1 (en) | 2002-05-22 | 2003-05-19 | Method for determining by strata reserve quality of an oil well |
| EP03752836A EP1506344B1 (fr) | 2002-05-22 | 2003-05-19 | Procede pour determiner, par strates, la qualite de reserve d' un puits de petrole |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR02/06189 | 2002-05-22 | ||
| FR0206189A FR2840014A1 (fr) | 2002-05-22 | 2002-05-22 | Procede pour determiner, par strates, la qualite de reserve d'un puits de petrole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003098000A1 true WO2003098000A1 (fr) | 2003-11-27 |
Family
ID=29414958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2003/001507 Ceased WO2003098000A1 (fr) | 2002-05-22 | 2003-05-19 | Procede pour determiner, par startes, la qualite de reserve d'un puits de petrole |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7257491B2 (fr) |
| EP (1) | EP1506344B1 (fr) |
| CN (1) | CN100519987C (fr) |
| AU (1) | AU2003258765A1 (fr) |
| CA (1) | CA2487090C (fr) |
| DE (1) | DE60336466D1 (fr) |
| FR (1) | FR2840014A1 (fr) |
| WO (1) | WO2003098000A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892837A (zh) * | 2010-04-29 | 2010-11-24 | 中国石油天然气股份有限公司 | 地层因数确定方法及含油饱和度确定方法 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2443675B (en) * | 2006-10-23 | 2011-07-27 | Flosoft Ltd | Oil Well Management |
| US7580797B2 (en) * | 2007-07-31 | 2009-08-25 | Schlumberger Technology Corporation | Subsurface layer and reservoir parameter measurements |
| US20110087471A1 (en) * | 2007-12-31 | 2011-04-14 | Exxonmobil Upstream Research Company | Methods and Systems For Determining Near-Wellbore Characteristics and Reservoir Properties |
| WO2010062710A1 (fr) * | 2008-11-03 | 2010-06-03 | Saudi Arabian Oil Company | Machine de détermination du rayon de blocs tridimensionnels de puits, procédés informatisés et progiciels associés |
| FR2976313B1 (fr) | 2011-06-10 | 2014-05-02 | Damien Despax | Procede de determination de la reponse complexe d'une strate permeable |
| ES2499915B1 (es) * | 2013-03-27 | 2015-04-29 | Fundación Attico | Medidor de espesor de estratos de materiales |
| CN110555221A (zh) * | 2018-06-01 | 2019-12-10 | 中国石油化工股份有限公司 | 一种计算区域地层升降幅度的方法及装置 |
| CN113417588B (zh) * | 2021-07-29 | 2022-05-31 | 雷彪 | 一种油气钻井过程中溢流情况评价方法 |
| CN116066072B (zh) * | 2022-12-20 | 2024-06-14 | 中国石油大学(华东) | 一种测井预测产能的方法和处理装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3559476A (en) | 1969-04-28 | 1971-02-02 | Shell Oil Co | Method for testing a well |
| FR2678679A1 (fr) | 1991-07-05 | 1993-01-08 | Services Projets | Procede et dispositif pour evaluer la qualite de production d'un puits, notamment de petrole. |
| FR2817587A1 (fr) * | 2000-12-04 | 2002-06-07 | Innov Pro | Procede et dispositif pour determiner la qualite de reserve d'un puits de petrole |
-
2002
- 2002-05-22 FR FR0206189A patent/FR2840014A1/fr active Pending
-
2003
- 2003-05-19 AU AU2003258765A patent/AU2003258765A1/en not_active Abandoned
- 2003-05-19 CN CNB038161346A patent/CN100519987C/zh not_active Expired - Lifetime
- 2003-05-19 CA CA2487090A patent/CA2487090C/fr not_active Expired - Lifetime
- 2003-05-19 EP EP03752836A patent/EP1506344B1/fr not_active Expired - Lifetime
- 2003-05-19 DE DE60336466T patent/DE60336466D1/de not_active Expired - Lifetime
- 2003-05-19 WO PCT/FR2003/001507 patent/WO2003098000A1/fr not_active Ceased
- 2003-05-19 US US10/515,398 patent/US7257491B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3559476A (en) | 1969-04-28 | 1971-02-02 | Shell Oil Co | Method for testing a well |
| FR2678679A1 (fr) | 1991-07-05 | 1993-01-08 | Services Projets | Procede et dispositif pour evaluer la qualite de production d'un puits, notamment de petrole. |
| FR2817587A1 (fr) * | 2000-12-04 | 2002-06-07 | Innov Pro | Procede et dispositif pour determiner la qualite de reserve d'un puits de petrole |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892837A (zh) * | 2010-04-29 | 2010-11-24 | 中国石油天然气股份有限公司 | 地层因数确定方法及含油饱和度确定方法 |
| CN101892837B (zh) * | 2010-04-29 | 2013-03-20 | 中国石油天然气股份有限公司 | 地层因数确定方法及含油饱和度确定方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2840014A3 (fr) | 2003-11-28 |
| FR2840014A1 (fr) | 2003-11-28 |
| CN100519987C (zh) | 2009-07-29 |
| US7257491B2 (en) | 2007-08-14 |
| CA2487090A1 (fr) | 2003-11-27 |
| EP1506344A1 (fr) | 2005-02-16 |
| US20060129321A1 (en) | 2006-06-15 |
| AU2003258765A1 (en) | 2003-12-02 |
| EP1506344B1 (fr) | 2011-03-23 |
| CN1666009A (zh) | 2005-09-07 |
| CA2487090C (fr) | 2010-10-19 |
| DE60336466D1 (de) | 2011-05-05 |
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