EP3030746A1 - Verfahren zum fördern bzw. zur vorbereitung der förderung von fluiden medien - Google Patents
Verfahren zum fördern bzw. zur vorbereitung der förderung von fluiden medienInfo
- Publication number
- EP3030746A1 EP3030746A1 EP13771045.5A EP13771045A EP3030746A1 EP 3030746 A1 EP3030746 A1 EP 3030746A1 EP 13771045 A EP13771045 A EP 13771045A EP 3030746 A1 EP3030746 A1 EP 3030746A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- explosive
- tube
- shafts
- desired depth
- explosion
- 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.)
- Granted
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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
Definitions
- the present invention relates to a method for conveying the preparation of fluid media from underground reservoirs.
- Modern geological investigation methods assist geologists in detecting underground rock formations that may contain fluid media such as oil and / or natural gas. These occurrences of fluid media enclosed in the rock formations are called deposits.
- Primary production is defined as the production phase in which the pressure in the reservoir is high enough, without any artificial measures, to extract petroleum or natural gas from it, either by squeezing it out with natural overpressure (pumping pressure) or by pumping.
- reservoir pressure decreases during oil production it can be increased by injecting water or natural gas using injection probes installed through bores.
- This funding phase is referred to as secondary funding.
- By injecting water 30-40% of the total existing oil can be promoted.
- the remaining, increasingly tough and dense oil complicates the further constant promotion.
- the permeability of the reservoir rock can also be increased by injecting acids, thereby solving components of the reservoir rock, for example carbonates.
- the present invention is therefore based on the object of proposing a method for conveying or preparing the delivery of fluid media from underground deposits, which makes it possible to promote fluid media in an efficient manner, which are present in deposits (mini-cavities), which coincides with the previous methods for economic development are not worthwhile.
- At least one tube comprising at least one section, into each of the vertical bores or shafts, wherein the at least one section of the tube has at least one opening in the lower region of the shell, wherein the openings of the sections of the at least two tubes are in each case between one two tubes selected area, this area lies between the at least two substantially vertical holes, lowering an explosive into the tube to a desired depth,
- a horizontal and directed pressure wave is introduced through the at least one opening in the shell of the tube section into the soil layer.
- the desired depth corresponds to the depth of the opening in the at least one section of the tube, which is introduced into the vertical bore or shaft.
- the horizontal pressure wave propagation is aligned through the opening in the shell of the tube section on at least one specific area.
- the at least two essentially vertical bores or shafts into the earth's surface make it possible for several of these horizontal pressure waves to meet in at least one desired area due to the ignition of the respective explosive.
- the ground between the holes is set in motion by the converging horizontal pressure waves. Due to the different compressibilities of the fluid media in the mini-cavities and the surrounding rock layers, the geological structures change in the depth of the soil in the areas in which the pressure waves propagate. It has been found that several mini-cavities are connected to form a larger cavity. Even if these mini-cavities are not necessarily assembled into a completely uniform volume, it is sufficient for a joint development of previously separate mini-cavities, if they at least have a connection to one another through which the fluid medium can be conveyed from a mini-cavity by opening up the other mini-cavity ,
- the change in geological structures can be explained by shattering the previously non-economic deposits, previously known as minicavities, previously surrounded by impermeable layers, and forming cracks in the impermeable layers surrounding the minicavities.
- the mini-cavities located in the pressure wave area can also be compressed in the vertical direction by sinking earth as a result of the soil moving in total.
- the fluid media in the mini-cavities evade this pressure by extending approximately horizontally to the surface of the earth (perpendicular to the bore). This then leads to the mini-cavities connecting with each other.
- a horizontal deposit is formed.
- the fluid media of this resulting high-yield deposit can then be promoted by the conventional methods described above.
- At least two sections of the tube have at least one opening in a region of the jacket. It is also contemplated that these openings of the at least two sections per tube will be aligned with at least one area selected between the two tubes, at least one area between the at least two substantially vertical bores. Thus, it is also part of the invention that several explosives are lowered and ignited to different desired depths corresponding to the openings of the sections in the respective tube.
- the soil around the minicavities can be reinforced and shaken targeted.
- the respective desired depth for the lowering of the explosive can be below the mini-cavities, in the same depth (horizontal to the majority of the found mini-cavities) or also above the mini-cavities. It may also be useful to ignite the explosive in the tubes at different depths.
- the object according to the invention by a method for conveying or for the preparation of the promotion of fluid media from underground deposits according to claim 2 by the steps
- a directional pressure wave is applied to the wall lining of the respective vertical well or well.
- the ignition of the first explosive takes place for an introduction of holes in the wall lining and thus serves to prepare for the second ignition of the explosive.
- the wall lining may for example consist of cement, concrete or any other hardening and stabilizing mass.
- the desired depth corresponds to the depth at which holes are to be placed in the wall lining and the depth at which the explosive is ignited after the second lowering.
- the ignition of the explosive which has been lowered second to the desired depth, creates a horizontal wave propagation into the soil.
- geological structures are changed by the converging horizontal pressure waves so that a plurality of mini-cavities are connected to form a larger cavity.
- a plurality of pressure waves can be generated in possibly also different depths.
- the respective desired depth for the lowering of the explosive can be below the mini-cavities, in the same depth (horizontal to the majority of the found mini-cavities) or also above the mini-cavities.
- the explosive is a commercial explosive (powdered explosive gelatinbaumr Explosive or emulsion explosive and explosive slurries) and / or at least one propellant from disarmed weapon systems.
- the explosive is connected before the step of lowering with an ignition line, wherein the other end of the ignition line is connected to a transmission line and this end of the transmission line with the explosive in the desired Depth is lowered and the other end of the transmission line is connected to an explosive or igniter just before the step of igniting the explosive.
- the step of igniting the explosive is carried out by a remote control.
- the fluid media are organic liquid or gaseous hydrocarbon compounds.
- hydrocarbon compounds are preferably present as petroleum, natural gas or a mixture of petroleum and natural gas in the deposit or the minicavity.
- the explosive force (explosive force) of the explosive suspended in the vertical well is distributed over the extent of the vertical well or well.
- the loss of explosive force is great and the explosive force is not concentrated, so that the explosive force does not act on the desired area of the opening of the well or the wall lining of the well, thereby obtaining a defective or defective blasting result.
- an open explosion of the explosive disposed in the vertical bore or well may be performed. Since the Explosive force of the explosive distributed over the open upper and lower sections of the vertical shaft or well may result in losses in explosive force, which in turn is an obstacle to the concentration of explosive force.
- the explosive device is reinforced on at least the top or bottom with a blast effect shemmenden or explosion-proof material.
- the explosive force of the explosive can be concentrated in a direction perpendicular to the direction of the vertical shaft or bore. Also avoided by this arrangement is that at the desired depth collapse of the wall lining of the vertical shaft or destruction of the tube in the bore by acting on the explosive force takes place.
- the explosive device consists of an explosive effect shemmenden or explosion-proof material or is completely reinforced with an explosive shemmenden or explosion-proof material and that the explosive device of the inner geometry of the tube or the wall lining is at least partially adapted and at least one Has explosive opening.
- the explosive device may be in shape as a cylinder, prism, sphere, cuboid or the like.
- the shape of the blasting device is adapted at least on one side in a partial region of the internal geometry of the wall lining or the pipe. This is advantageous because, by virtue of this configuration, the explosive device can not swing back and forth in the pipe or the wall lining during its introduction.
- can be supported by the design of the recoil advantageous by the adaptation of the blasting device to the geometry of the inner tube by a flat abutment over a larger area of the inner tube. It is also advantageous that the blasting device rests flat on the inner tube by the adaptation of the shape already at the ignition of the blast and is not thrown against the surface of the inner tube only by the recoil.
- the blasting device has at least one blast opening. This blast opening allows a concentrated, horizontal and directed pressure wave to be conducted into the soil after blasting.
- the step of igniting the explosive in the at least two substantially vertical bores or wells is coordinated with each other.
- the selected area, to which the blasting is aligned can not be centrally selected by the subterranean rock formations or different earth structures are present, whereby the pressure wave propagation is disturbed.
- the wall lining in the region of the desired depth is partially reinforced with a blast-action-inhibiting or explosion-proof material.
- This embodiment makes it possible that the pressure wave propagation does not occur to the side in which no mini-cavities are suspected. It is also possible by this configuration that the first blast introduces only openings on the sides of the wall lining of the shaft, in which the mini-cavities are present.
- the horizontal pressure wave propagation is aligned through the opening of the wall lining to a specific area.
- the at least two essentially vertical shafts into the earth's surface make it possible for several of these horizontal pressure waves to meet in a desired area due to the ignition of the respective explosive. As a result, this causes the change of the geological structure already described above.
- the portion of the tube having at least one opening in the lower region of the shell, at least partially reinforced with a blast-resistant or explosion-proof material is avoided.
- the portion of the tube which has at least one opening in the lower region of the shell, consists of an explosive effect shemmenden or explosion-proof material.
- FIG. 6 shows a possible arrangement of the bores or shafts in the earth's surface from a bird's-eye view (top view),
- Fig. 7 shows another possible arrangement of the holes or shafts in the
- FIG. 1 shows the earth's surface (5) into which at least two substantially vertical bores (3) or shafts (4) are introduced.
- the at least two holes (3) or shafts (4) are as far as possible introduced around the found, not yet worthwhile underground deposits (2) around.
- the earth's surface (5) can be considered level present, but also as a hilly landscape or mountains.
- underground deposits (2) mini-cavities
- FIG 2 the introduction of at least one tube (6) is shown in each of the vertical holes or wells.
- the tube consists in Figure 2 of three sections (6a-6c), wherein the lowermost portion (6a) of the tube (6) in the lower region of the jacket (7) has at least one opening (8).
- the tube (6) also consist of much more sections.
- This at least one opening (8) of the section (6a) of the respective tube (6) is aligned in each case with a region (9) selected between the at least two tubes, this region (9) lying between the at least two substantially vertical bores.
- This area (9) defines a volume into which the pressure waves enter.
- the pressure waves may well enter this area (9) at different geometric depths.
- Figure 3 shows the lowering of an explosive (10a) into each of the tubes (6) to a desired depth (11).
- the tube consists in Figure 3 of three sections (6a-6c), wherein the lowermost portion (6a) of the tube (6) in the lower region of the jacket (7) has at least one opening.
- the desired depth (11) corresponds to the depth of the opening in the at least one portion of the tube (6 a), which is introduced into the vertical bore or shaft.
- FIG. 4 shows the ignition of the explosive (10a).
- the explosive (10a) By igniting the explosive (10a) in the desired depth (11) in the tube (6) of the respective bore (3) or the shaft (4) is a horizontal and directed pressure wave through the at least one opening in the jacket (7) of Tube section (6a) introduced into the soil layer.
- the horizontal pressure wave propagation is aligned through the opening in the shell (7) of the pipe section (6a) on a specific area (9).
- the at least two substantially vertical holes (3) or shafts (4) in the earth's surface is made possible by the ignition of the respective explosive (10a) more of these horizontal pressure waves in a desired range (9) or in several desired Clash areas. It is inventively provided that the geological formation of the soil is changed by the converging horizontal pressure waves as described above.
- FIG. 5 shows the formation of a deposit (2) which is worthwhile for development for extraction from an economic point of view.
- Figure 6 shows a possible arrangement of the holes (3) or shafts (4) in the earth's surface (5) in bird's eye view.
- the pressure waves of the ignited explosives (10a) are aligned here on a single area (9).
- FIG. 7 shows a further possible arrangement of the bores (3) or shafts (4) in the earth's surface (5) in bird's-eye view.
- the pressure waves of the ignited explosives (10a) are aligned here on two areas (9a, 9b). However, it is also conceivable that the pressure waves of the detonated explosives are aligned in several areas.
- a matrix By arranging a plurality of holes or shafts to each other, a matrix can be formed, which ensures a controlled propagation of the pressure waves in the environment around the mini-cavities. This is extremely beneficial for the controlled lowering of the earth's surface.
- the areas 9, 9a and 9b are each represented by a single point. It can be seen that this point represents only a center of the respective area.
- the pressure waves propagate in the form of a solid angle from the place where they were generated. Therefore, the pressure waves are not concentrated in a distant point but apart. This then leads to a correspondingly large area being set in vibration by these pressure waves.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE2013/100288 WO2014146624A1 (de) | 2013-08-09 | 2013-08-09 | Verfahren zum fördern bzw. zur vorbereitung der förderung von fluiden medien |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3030746A1 true EP3030746A1 (de) | 2016-06-15 |
| EP3030746B1 EP3030746B1 (de) | 2019-05-22 |
Family
ID=49293405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13771045.5A Active EP3030746B1 (de) | 2013-08-09 | 2013-08-09 | Verfahren zum fördern bzw. zur vorbereitung der förderung von fluiden medien |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20160177694A1 (de) |
| EP (1) | EP3030746B1 (de) |
| CA (1) | CA2920536A1 (de) |
| EA (1) | EA034522B1 (de) |
| WO (1) | WO2014146624A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10138720B2 (en) | 2017-03-17 | 2018-11-27 | Energy Technology Group | Method and system for perforating and fragmenting sediments using blasting material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2630182A (en) * | 1947-02-19 | 1953-03-03 | Seismograph Service Corp | Method for shooting oil wells |
| US3513913A (en) * | 1966-04-19 | 1970-05-26 | Shell Oil Co | Oil recovery from oil shales by transverse combustion |
| US3734180A (en) * | 1971-08-27 | 1973-05-22 | Cities Service Oil Co | In-situ gasification of coal utilizing nonhypersensitive explosives |
| US3902422A (en) * | 1973-07-26 | 1975-09-02 | Du Pont | Explosive fracturing of deep rock |
| US4522260A (en) * | 1982-04-08 | 1985-06-11 | Atlantic Richfield Company | Method for creating a zone of increased permeability in hydrocarbon-containing subterranean formation penetrated by a plurality of wellbores |
-
2013
- 2013-08-09 WO PCT/DE2013/100288 patent/WO2014146624A1/de not_active Ceased
- 2013-08-09 CA CA2920536A patent/CA2920536A1/en not_active Withdrawn
- 2013-08-09 US US14/910,353 patent/US20160177694A1/en not_active Abandoned
- 2013-08-09 EP EP13771045.5A patent/EP3030746B1/de active Active
- 2013-08-09 EA EA201690351A patent/EA034522B1/ru not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014146624A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20160177694A1 (en) | 2016-06-23 |
| EA201690351A1 (ru) | 2016-08-31 |
| WO2014146624A1 (de) | 2014-09-25 |
| EA034522B1 (ru) | 2020-02-17 |
| EP3030746B1 (de) | 2019-05-22 |
| CA2920536A1 (en) | 2014-09-25 |
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