EP3224452A1 - Dispositif de prelevement d'un fluide sous pression equipe de moyens pour augmenter le volume de la chambre d'echantillonnage - Google Patents
Dispositif de prelevement d'un fluide sous pression equipe de moyens pour augmenter le volume de la chambre d'echantillonnageInfo
- Publication number
- EP3224452A1 EP3224452A1 EP15790557.1A EP15790557A EP3224452A1 EP 3224452 A1 EP3224452 A1 EP 3224452A1 EP 15790557 A EP15790557 A EP 15790557A EP 3224452 A1 EP3224452 A1 EP 3224452A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sampling
- chamber
- fluid
- sampling chamber
- piston
- 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.)
- Withdrawn
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 192
- 239000012530 fluid Substances 0.000 title claims abstract description 120
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 230000005251 gamma ray Effects 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- 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
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/086—Withdrawing samples at the surface
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
- G01N2001/105—Sampling from special places from high-pressure reactors or lines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
- G01N2001/205—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping using a valve
- G01N2001/2057—Sample chamber in a valve/piston
Definitions
- the invention relates to the technical field of exploration and exploitation of underground environment, such as the exploitation of a gas reservoir (storage / withdrawal of gas, exploitation of conventional or unconventional gas or hydrocarbons) and monitoring these operations (contamination of aquifer operations).
- the invention particularly relates to the field of geological site monitoring comprising oil or gas hydrocarbons.
- the invention relates to fluid sampling devices, and more particularly to a device for sampling fluids under pressure in a well, a pipe, a tube, a pipe, a tank or the like.
- Fluids present in an underground environment need to be sampled via wells to determine their composition, in order to characterize the geological reservoirs reached by these wells and their evolution over time during the industrial process of storage and / or production.
- sampler For sampling fluids under pressure in a well drilled through a geological formation.
- sampler For sampling fluids under pressure in a well drilled through a geological formation.
- FTS Flow Through Sampler
- US594561 1 discloses a device for sampling fluids under pressure in a pipe, a pipe, a pipe or the like.
- This device comprises a plurality of pistons, a body having a common passageway, wherein said pistons are slidably mounted, a side entry port and a side exit port located within said passageway and communicating with the pipeline. said inlet and outlet ports located so that the movement of the pistons can cover and uncover said inlet and outlet ports.
- Patent US5896926 discloses a subterranean aquifer fluid sampling device in situ in a static condition without disturbing the environment but comprising a "packer” to isolate the sampling system with the area above it and a pumping system in situ in said sampler to "suck" the fluid into the sampling chamber.
- a sampling device comprising on the one hand a piston controlled by a spring bathed in an oil chamber to sample the fluid, and on the other hand, a second piston for expelling the fluid during the transfer.
- the device is held in the open or closed position by the compressed spring housed in the chamber filled with oil.
- the oil contained in the chamber of the spring makes it possible to dampen the decompression effect and to perform the sampling smoothly.
- the device allows the recovery of sampled fluid through the mechanical action of a solid piston through a manual valve. This device also has the advantage of being able to be lowered in the open position in the underground environment, to allow a complete filling of the sampling chamber.
- these sampling devices require the implementation of means for extracting the fluid from the sample chamber and conditioning the fluid taken from a dedicated container. These means are complex, can alter the fluid taken (leakage, fluid pollution %) and require manipulation.
- the invention relates to a fluid sampling device comprising a sampling chamber comprising a first piston driven by the fluid, and additional means for increasing the volume of the sampling chamber, so as to adjust the pressure in the chamber. sampling chamber.
- the sample chamber serves as a sampler but also as a container for the sampled fluid and can also be used as a cell for fluid analysis.
- the invention relates to a device for sampling at least one pressurized fluid comprising at least one sampling chamber comprising an internal volume for receiving said fluid, said sample chamber comprising a first piston able to be displaced by said fluid.
- Said sampling chamber comprises additional means for increasing the volume of the sampling chamber.
- said sampling chamber is a container for transporting said fluid.
- said additional means for increasing the volume of said sample chamber comprise a compensation piston serving as an abutment for said first piston and means for adjusting the position of said compensation piston.
- the means for adjusting the position of said compensation piston are hydraulic means.
- said compensation piston has a stroke representing between 0.1 and 20% of the fluid volume taken.
- said sampling device comprises a lower chamber disposed under said sampling chamber, and comprises in the lower part of said sampling chamber, a connection for removably fixing said sampling chamber and said lower chamber, said coupling comprising means for the passage of a fluid between said sampling chamber and said lower chamber.
- said compensation piston slides essentially within the fitting around an inner cylinder.
- sampling device may comprise a sampling actuation system for opening or closing said sampling chamber.
- said actuation system comprises motorization means opening and closing said sampling chamber and electronic or mechanical control means of said motorization means.
- said electronic control means comprise a clock and / or communication means and / or at least one temperature sensor and / or at least one pressure sensor and / or at least one CCL sensor and / or at least one a gamma ray sensor.
- said sampling chamber is removably attached below said actuating system.
- said sampling chamber comprises an upper valve to allow or prohibit the passage of said fluid in said sampling chamber, said upper valve being disposed above the first piston.
- said sampling device comprises between one and five sampling chambers, preferably between one and three sampling chambers.
- the invention relates to the use of a device according to the invention for producing a sample of a fluid in an underground formation. For this use, the following steps are carried out: a) lowering said sampling device with said closed sampling chamber in said subterranean formation;
- said compensation piston is held in the up position, and during the recovery step of the sampling chamber, said compensation piston is lowered to the low position.
- said fluid is transported in said closed sampling chamber.
- a step of analyzing said fluid contained in said sampling chamber is also carried out.
- a step of conditioning said sampling chamber substantially prior to the analysis step is also carried out substantially at the temperature and pressure conditions of said subterranean formation.
- the sample is taken for the monitoring of a C0 2 storage site, a conventional or unconventional hydrocarbon exploration or exploitation site, or a geothermal site.
- Figure 1 illustrates the sampling device according to the invention before sampling of the fluid.
- Figure 2 illustrates the sampling chamber and the lower chamber of the sampling device according to the invention before sampling the fluid.
- FIG. 3 illustrates the sampling chamber and the lower chamber of the sampling device according to the invention after sampling of the fluid.
- Figure 4 illustrates the sampling chamber of the sampling device according to the invention after sampling of the fluid.
- FIG. 5 illustrates the sampling chamber of the sampling device according to the invention for the transport of the fluid.
- FIG. 6 illustrates the intermediate connection of the sampling device according to the invention.
- FIG. 7 illustrates the sampling chamber of the sampling device according to the invention equipped with covers for the transport of the fluid.
- the present invention relates to a device for sampling at least one fluid under pressure, also called a sampler.
- the sampler according to the invention comprises at least one sampling chamber defining an internal volume for receiving the fluid to be sampled. During sampling, the sampling chamber is filled with the fluid to be sampled. Then, when the sampling is completed, that is to say during the recovery of the sampler on the surface, or during the transport of the fluid, the fluid taken is contained in this sample chamber.
- the sampler according to the invention further comprises additional means for increasing the volume of the sampling chamber, so as to adjust the pressure in the sampling chamber.
- the additional means for increasing the volume of the sampling chamber make it possible to reduce the pressure in the sampling chamber (in the case of a compressible fluid) or to create a gas cushion ("gas cap") above the fluid (in the case of an incompressible fluid), especially when the sampling chamber comprises the fluid to be sampled. These additional means make it possible to limit the risks associated with the transport of equipment under pressure; thus it is no longer necessary to extract the fluid taken for analysis, which allows the use of the sample chamber as a container for transporting the withdrawn fluid (fluid transport bottle removed).
- sampler may comprise the following means, alone or in combination:
- a levitation operating system which opens and closes the sampler, so as to allow or prohibit the introduction into the sampler fluid to be taken from the outside environment.
- the actuation system is preferably located above the sampling chamber.
- the sampling chamber is formed by an envelope cylindrical, in which moves a first piston.
- the displacement of the first piston is achieved by the sampled fluid: the pressure of the sampled fluid causes the first piston to descend.
- the fluid taken is therefore contained in the cylindrical envelope between the upper part of the sampling chamber and the first piston.
- the additional means for increasing the volume of the sampling chamber comprise a compensation piston and means for adjusting the position of the compensation piston.
- the first piston In the lower position of the first piston, that is to say at the end of sampling and during transport of the sampler, the first piston is in abutment against a compensation piston.
- the compensation piston is controlled by adjusting means so as to vary the pressure within the sampling chamber.
- the means for adjusting the position of the compensation piston position the compensation piston in the up position during sampling and raising to the surface of the sampler.
- the means for adjusting the position of the compensation piston position the compensation piston in the lower position for transporting the sample taken.
- the first piston being in abutment against the compensation piston, and in view of the pressure of the fluid taken from the sampling chamber, the descent of the compensation piston causes the lowering of the first piston.
- a fluid for example oil is injected under the compensation piston to the out, for example about 15 mm, which allows to create a buffer (oil) on which abuts the first piston when it is in abutment on the compensation piston.
- This buffer (oil) once the tool is raised to the surface, is evacuated, which allows the sample to be transported to the laboratory with less pressure than that of the sample, or even zero (it all depends on the quantity of dissolved gas recovered by the sampler).
- the internal volume containing the sampled fluid increases, which makes it possible to reduce the pressure in the sampling chamber (in the case of a compressible fluid) or to create a gas cushion ("gas cap") at above the fluid (case of an incompressible fluid).
- this layer of gas or gas cap has a small volume relative to the volume of the sample chamber.
- the compensation piston stroke may represent between 0.1% and 25% of the sampled volume, or even more preferably between 0.1 and 20% of the sampled volume.
- This pressure setting limits the risks of transporting pressure equipment; thus it is no longer necessary to extract the fluid taken for analysis, which allows the sample chamber to be used as a container for transporting the withdrawn fluid (container for transporting the withdrawn fluid) and as a PVT cell since It is possible to return the sample to the background conditions.
- the position of the compensation piston can be adjusted by hydraulic means; the piston is moved by injection and withdrawal of oil.
- a sampling operation system allows the opening and closing of the sampler.
- the actuation system can be included in a cylindrical envelope. Preferably, this opening and closing are performed by a valve, called upper valve, located above the first piston.
- the upper valve is driven by the actuating system, when the sampler is at the position, in the well, desired for sampling.
- the actuation system comprises motorization means, in particular at least one electric motor capable of driving the upper valve.
- the actuation system further comprises means for controlling the motorization means.
- the control means control the motorization means when the sampler is in the desired position.
- the control means may be mechanical control means actuated from the surface by a user.
- the control means may be electronic.
- the electronic control means may comprise means of communication in real time with means disposed on the surface, so as to inform the user of the conditions within the well.
- the electronic control means may comprise an automatic clock, which will trigger the control of the motorization means at a predetermined time.
- the control means and the information sent back in real time can enable the specialist to trigger the sampling, once the position of the sampler in the well has been determined.
- the control means may include one or more sensors to determine the position of the sampler in the well.
- the sensors integrated in the control means may comprise one or more temperature sensors, one or more pressure sensors, one or more CCL sensors (English “Casing Collar Locator", which means casing joint detector, this type sensor for determining the position of the casing joints in a well), one or more gamma ray sensors (in English "gamma ray”) ...
- these two embodiments can be associated, and a mechanism of Automatic clock can be coupled to different sensors.
- the electronic control means can be integrated in a thermal shield type Dewar vase which is a container designed to provide very good thermal insulation. This tube may be in the form of a glass or metal container, double-layer. It can be seen as two thin-walled containers nested inside one another.
- the pressure sensor may be a Quatzdyne type sensor or equivalent, which is a high precision sensor and can withstand temperatures up to 200 ° C.
- the sampling chamber is removably attached, for example by a threaded connection, to the actuating system so as to be able to isolate the sampling chamber, to form a transport container.
- the lower chamber is in communication with the sampling chamber.
- the lower chamber can be included in a cylindrical envelope.
- the outer diameter of the lower chamber may be substantially identical to the outer diameter of the sampling chamber, for example by a threaded connection.
- the lower chamber is in communication with the sampling chamber by means of a connection, said intermediate connection.
- the connector allows the lower chamber and the sampling chamber to be removably attached.
- the sampling chamber can be isolated from the lower chamber to form a transport container.
- the coupling comprises means for the passage of a fluid from the sampling chamber to the lower chamber.
- the passage means prohibit the passage of fluid in the opposite direction from the lower chamber to the sampling chamber.
- the means for the passage of a fluid may comprise a lower cylinder, an adjusting screw, and a valve system.
- the lower chamber has a volume greater than the volume of the sampling chamber, so as to allow complete transfer of the fluid initially contained in the sampling chamber to the lower chamber.
- the assembly may be constituted so as to ensure a slow crossing of the transfer fluid, which allows to ensure a sampling without changing the characteristics PVT (pressure, volume, temperature) of the fluid of the underground formation.
- the compensation piston is movable relative to the coupling.
- the compensation piston is essentially movable within the connection, so that, in the low position, the compensation piston does not protrude from the connection and that, in the raised position, the compensation piston protrudes compared to the fitting.
- the height of the projection substantially corresponds to the stroke of the compensation piston.
- Figure 1 illustrates the sampling device before sampling the fluid according to a non-limiting embodiment of the invention.
- the sampling device is substantially of cylindrical shape and comprises from top to bottom three compartments: the control compartment 20 comprising the actuating system, the sampling chamber 3 and the lower chamber 13.
- the illustrated control compartment 20 includes, without limitation:
- control pin 18 transmitting the movement of the electric motor 19, a lower end piece 21 of the control compartment 20 closing the lower part of the control compartment 20,
- control compartment with control means (not shown), for example electronic or mechanical control means, and
- the sample chamber 3 illustrated includes, without limitation:
- the first piston 4 which is in the up position before sampling the fluid, is pressed to the upper nozzle 2 by evacuating between the first piston 4 and the upper nozzle 2, an intermediate connection 9 situated in the lower part of the sampling chamber and which makes it possible to removably fix the sampling chamber 3 and the lower chamber 13,
- a compensation piston 5 movable relative to the intermediate connection, which is in the up position before sampling the fluid, by means of a fluid
- valve 10 fixed to the intermediate connection, and which allows the passage of the fluid from the sampling chamber 3 to the lower chamber 13.
- the lower chamber 13 illustrated includes, without limitation:
- a lower nozzle 14 of the sampler closing the lower chamber 13 a "lower nose” 15 (of the English “bottom nose”) closed, attached to the lower end, which is at the lower end of the sampler, and has a substantially conical shape, and
- the first piston 4 Before sampling the fluid (FIGS. 1 and 2), the first piston 4 is pressed against the upper nozzle 2, the volume of the sampling chamber 3 between the first piston 4 and the intermediate coupling comprises a filling fluid, for example oil, and the volume of the lower chamber is evacuated or has air.
- a substantially conical surface of the projecting piston 4 penetrates into a substantially conical hollow surface of the upper nozzle 2.
- the fluid enters the sampling chamber 3 through the upper valve 1.
- the sampled fluid then exerts a force on the first piston 4 which goes down, and the sampled fluid begins to fill the volume of the sampling chamber comprised between the upper nozzle 2 and the first piston 4.
- the descent of the first piston 4 generates a displacement of the filling fluid from the sampling chamber 3 to the lower chamber 13 through the intermediate connection and the valve 10.
- the first piston 4 is in abutment against the compensation piston 5 which is in the up position.
- the sampling chamber 3 then comprises only the sampled fluid.
- the entire filling fluid is then in the lower chamber.
- the sample is prepared (FIG. 5) keeping only the sampling chamber, by dismounting the control means 20 and the lower chamber 13. And in order to allow the safe transport of the fluid under pressure, a gas cushion is formed within the sampling chamber 3 by descent of the compensation piston 5, allowing an increase in the volume of the sampling chamber.
- This intermediate coupling 9 may be composed of two valves 7a and 7b, equipped with a needle 27, a drain valve 8, a compensation piston 5, an inner cylinder 6, a nozzle screw 26 and a valve 10, itself composed of a body, a spring 28, a ball 12 and a set screw 1 1.
- a fluid preferably oil
- oil is injected under the compensation piston 5 until it comes out, for example about 15 mm, which makes it possible to create a buffer ( of oil) on which abuts the first piston 4 when it is in abutment against the compensation piston 5.
- This buffer once the sampler raised to the surface, is evacuated, which allows to transport the sample to the laboratory with less pressure than that of the sample, or even zero (all depends on the amount of dissolved gas recovered by the sampler).
- the sampler can be prepared, as illustrated in FIGS. 1 and 2, before descending into a well, by implementing the following steps:
- Step 1 the vacuum is made above the first piston 4, for example by connecting the inlet of the upper valve 1 to a vacuum pump; in doing so the first piston 4 is pressed to the upper nozzle 2.
- Step 2 set the compensation piston 5 in the up position, performing the following steps:
- valve 7a unscrew the valve 7a, which is replaced by a hose connected to the lower part of an oil container, and in the upper part of this container, a hose is connected to a pump capable of evacuating or pressure . o it begins by evacuating the intermediate connection 6, then opens the valve 7b, which sucks the oil through the filling hose and fills the volume under the compensation piston 5. Once this volume is filled, the valve 7a is closed and the vacuum pump is stopped.
- Step 3 the volume of the sampling chamber 3 is filled with oil under the piston 4.
- Step 4 the assembly of the intermediate fitting 9 is screwed into the sampling chamber 3.
- Step 5 the lower chamber 13 is screwed onto the intermediate fitting 6.
- Step 6 the lower nozzle 14 is screwed with its valve 16 on the lower part of the lower chamber 13.
- Step 7 a vacuum is made in the lower chamber 13, for example via a vacuum pump connected to the lower valve 16.
- Step 8 the lower nose 15 is fixed to the lower nozzle 14 of the sampler.
- Step 9 set up and fix the entire control compartment 20 on the sampler via the connection 17 of the control compartment 20 with the sampling chamber 3.
- the opening of the upper valve 1 is triggered via the electric motor 19.
- the pressure exerted by the fluid to be taken on the upper part of the piston 4 causes its displacement; in doing so, the oil contained in the piston portion 4 is transferred from the sampling chamber 3 into the lower chamber 13, via a nozzle created in the nozzle screw 26 and contained in the valve 10 .
- valve 10 equipped with its ball 12, slightly tared by the set screw 1 1 which bears on the spring 28, is twofold: firstly it prevents the transfer of the oil by gravity during the descent of the sampler; and secondly it opens to compensate for the expansion of the oil volume created by the raising of the temperature of the oil during the descent.
- the upper valve 1 is then closed via the electric motor 19 and the sampler can be reassembled.
- the sampler when the sampler is raised to the surface, it starts by disconnecting the cable head at the electronic compartment. Then, we dismount the electronic compartment of the control compartment. Then, the sampler assembly (sampling chamber and lower chamber) is disconnected from the control head assembly.
- a verification of the volume taken can be carried out after this disassembly.
- the check may consist in weighing the complete sampler before the descent and after the ascent, the difference in weight indicating whether the sampler is filled or not.
- the pressure contained in the sampling chamber 3 of the sampler may represent a danger. To limit the risks associated with the transport of pressure equipment, it is possible to reduce this pressure substantially by creating a "gas cap".
- the "gas cap” is achieved by adjusting the position of the compensation piston 5, bringing it into its lower position.
- the pressure exerted in the oil chamber is equal, for example, to three times the pressure in the upper chamber of the sampler, in view of the ratio of the surfaces of the first piston 4 and the compensation piston 5.
- the "gas cap” can be achieved by the difference in temperature.
- the final pressure contained in the sampler is influenced by the final temperature. This temperature has an influence on both the oil and the liquid taken.
- the volume of the lower chamber 13 being greater than that of the sampling chamber 3, there is no risk in the oil contained in the lower chamber 13.
- a sample taken at high temperature by example 200 ° C
- the final pressure of the fluid on the surface is therefore no longer the same as that of the bottom, which goes in the direction of safety.
- Step 1 the lower chamber 13 of the intermediate fitting 9 is unscrewed to check whether the oil transfer has been complete or not (FIG. 4).
- Step 2 the drain screw 8 of the intermediate fitting 9 is removed, and a purge hose connected to a draining vessel is screwed in its place.
- Step 3 Unthread the valve 7b of the intermediate coupling 9, the first piston
- Step 4 the valve 10 of the intermediate fitting 9 is unscrewed.
- Step 5 a lower cover 29 is screwed onto the intermediate fitting 9 in place of the lower chamber 13, as well as a top protective cover 30 for the upper valve 1 (FIG. 7).
- the sampler is then conditioned for its transport, in particular for sending to an analysis laboratory.
- the sampler comprises several sampling chambers.
- the sampler may have two or three sampling chambers.
- several assemblies comprising an actuating system, an upper valve, a sampling chamber and a lower chamber are assembled one below the other.
- the sampler according to the invention is particularly suitable for sampling fluids in deep wells, for example greater than 3000 m, under high pressure and high temperature conditions.
- the sampler according to the invention can be designed to take a fluid at pressures up to 650 bar and above and at temperatures close to 200 ° C. and higher.
- the sampler according to the invention can be used in the field of monitoring a C0 2 storage site of a geothermal site, an exploration site or exploitation of hydrocarbons, oil or gas conventional or unconventional, for example for a shale gas exploitation site.
- the invention furthermore relates to the use of a sampling device for producing a sample of a fluid in an underground formation, in which the following steps are carried out:
- the sampling device is lowered with the closed sampling chamber 3 into a well (or pipe, conduit, reservoir, etc.) of the subterranean formation, in particular by means of a cable attached to the sampling system; actuation of the sampler;
- the sampling device is raised to the surface with the sampling chamber 3 closed, in particular by means of a cable;
- the recovery of the sample chamber as a transport container avoids any extraction and reconditioning of the fluid taken, which could be a source of alteration of the fluid collected: leakage, pollution ...
- the "gas cap” is achieved by adjusting the position of the compensation piston.
- the “gas cap” can be achieved by keeping the compensation piston in the up position during the steps of descent, sampling and recovery, and down the compensation piston in the lower position during the recovery step.
- the use of the device according to the invention may also include a step of analyzing the fluid taken.
- the fluid taken is transported from the sampling site to the analysis laboratory in the sampling chamber. Prior to this analysis step, it is possible to condition the sample chamber substantially to the temperature and pressure conditions of the subterranean formation.
- the sampling chamber of the sampler is used for sampling, as a transport container and PVT analysis cell (pressure, volume, temperature).
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1402654A FR3028880B1 (fr) | 2014-11-25 | 2014-11-25 | Dispositif de prelevement d'un fluide sous pression equipe de moyens pour augmenter le volume de la chambre d'echantillonnage |
PCT/EP2015/075815 WO2016083092A1 (fr) | 2014-11-25 | 2015-11-05 | Dispositif de prelevement d'un fluide sous pression equipe de moyens pour augmenter le volume de la chambre d'echantillonnage |
Publications (1)
Publication Number | Publication Date |
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EP3224452A1 true EP3224452A1 (fr) | 2017-10-04 |
Family
ID=53298398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15790557.1A Withdrawn EP3224452A1 (fr) | 2014-11-25 | 2015-11-05 | Dispositif de prelevement d'un fluide sous pression equipe de moyens pour augmenter le volume de la chambre d'echantillonnage |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170260856A1 (fr) |
EP (1) | EP3224452A1 (fr) |
FR (1) | FR3028880B1 (fr) |
WO (1) | WO2016083092A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10359342B2 (en) * | 2017-03-15 | 2019-07-23 | Sentry Equipment Corp. | Pipeline sampler |
CN113405858B (zh) * | 2021-07-14 | 2022-12-13 | 安徽蓝歆家庭用品有限公司 | 一种基于洗衣液产品研发加工的样品取样装置及使用方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5901788A (en) * | 1995-10-16 | 1999-05-11 | Oilphase Sampling Services Limited | Well fluid sampling tool and well fluid sampling method |
US6334489B1 (en) * | 1999-07-19 | 2002-01-01 | Wood Group Logging Services Holding Inc. | Determining subsurface fluid properties using a downhole device |
US20020060067A1 (en) * | 1999-03-25 | 2002-05-23 | Victor M. Bolze | Formation fluid sampling apparatus and method |
WO2006044567A2 (fr) * | 2004-10-13 | 2006-04-27 | Baker Hughes Incorporated | Procede et appareil permettant de stocker de l'energie et de multiplier une force afin de mettre sous pression un echantillon de fluide de fond de trou |
US20090187346A1 (en) * | 2008-01-17 | 2009-07-23 | Baker Hughes Incorporated | Methods for the identification of bubble point pressure |
RU2470152C1 (ru) * | 2011-06-21 | 2012-12-20 | Андрей Александрович Павлов | Устройство отбора глубинных проб из скважины |
FR2999224A1 (fr) * | 2012-12-07 | 2014-06-13 | IFP Energies Nouvelles | Preleveur de fluide sous pression pour la surveillance de stockage geologique de gaz |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3093130B2 (ja) | 1995-07-10 | 2000-10-03 | 核燃料サイクル開発機構 | パッカー式地下水採水装置および採水方法 |
US5945611A (en) | 1998-07-15 | 1999-08-31 | Welker Engineering Company | Dual piston flow-through sampler |
-
2014
- 2014-11-25 FR FR1402654A patent/FR3028880B1/fr active Active
-
2015
- 2015-11-05 WO PCT/EP2015/075815 patent/WO2016083092A1/fr active Application Filing
- 2015-11-05 US US15/529,296 patent/US20170260856A1/en not_active Abandoned
- 2015-11-05 EP EP15790557.1A patent/EP3224452A1/fr not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5901788A (en) * | 1995-10-16 | 1999-05-11 | Oilphase Sampling Services Limited | Well fluid sampling tool and well fluid sampling method |
US20020060067A1 (en) * | 1999-03-25 | 2002-05-23 | Victor M. Bolze | Formation fluid sampling apparatus and method |
US6334489B1 (en) * | 1999-07-19 | 2002-01-01 | Wood Group Logging Services Holding Inc. | Determining subsurface fluid properties using a downhole device |
WO2006044567A2 (fr) * | 2004-10-13 | 2006-04-27 | Baker Hughes Incorporated | Procede et appareil permettant de stocker de l'energie et de multiplier une force afin de mettre sous pression un echantillon de fluide de fond de trou |
US20090187346A1 (en) * | 2008-01-17 | 2009-07-23 | Baker Hughes Incorporated | Methods for the identification of bubble point pressure |
RU2470152C1 (ru) * | 2011-06-21 | 2012-12-20 | Андрей Александрович Павлов | Устройство отбора глубинных проб из скважины |
FR2999224A1 (fr) * | 2012-12-07 | 2014-06-13 | IFP Energies Nouvelles | Preleveur de fluide sous pression pour la surveillance de stockage geologique de gaz |
Non-Patent Citations (1)
Title |
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See also references of WO2016083092A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20170260856A1 (en) | 2017-09-14 |
FR3028880B1 (fr) | 2021-06-25 |
FR3028880A1 (fr) | 2016-05-27 |
WO2016083092A1 (fr) | 2016-06-02 |
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