EP3231983A1 - Procédé de traitement et de recyclage de boue de forage - Google Patents

Procédé de traitement et de recyclage de boue de forage Download PDF

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Publication number
EP3231983A1
EP3231983A1 EP16164758.1A EP16164758A EP3231983A1 EP 3231983 A1 EP3231983 A1 EP 3231983A1 EP 16164758 A EP16164758 A EP 16164758A EP 3231983 A1 EP3231983 A1 EP 3231983A1
Authority
EP
European Patent Office
Prior art keywords
drilling mud
drilling
soil
mud
treatment
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
Application number
EP16164758.1A
Other languages
German (de)
English (en)
Other versions
EP3231983B1 (fr
Inventor
Josef Schad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Max Wild GmbH
Original Assignee
Max Wild GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Max Wild GmbH filed Critical Max Wild GmbH
Priority to DK16164758.1T priority Critical patent/DK3231983T3/da
Priority to EP16164758.1A priority patent/EP3231983B1/fr
Publication of EP3231983A1 publication Critical patent/EP3231983A1/fr
Application granted granted Critical
Publication of EP3231983B1 publication Critical patent/EP3231983B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/062—Arrangements for treating drilling fluids outside the borehole by mixing components
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/065—Separating solids from drilling fluids
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/065—Separating solids from drilling fluids
    • E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal

Definitions

  • the invention relates to a method for the treatment and at least partially recycling of drilling mud arising from a well.
  • drilling fluids When drilling holes (for example, horizontal or vertical holes, such as holes for thermal probes), drilling fluids are used, which are pumped into the hole through the bit.
  • the drilling fluids are composed of different substances, the main component is mostly water.
  • the aggregate usually bentonite is used, which forms a suspension together with the water content.
  • drilling fluids contain further additives, which are adapted to the substrate to be drilled.
  • the purpose of the drilling fluids is to cool and lubricate the drill head and to stabilize the resulting drill channel and to remove the soil.
  • the used drilling fluid is pumped out of the well again and then contains material from the well.
  • the material from the borehole can also include pollutants such as heavy metals or washed-out contaminated sites.
  • the invention proposes a method for the preparation and at least partially recycling incurred in a well bore drilling mud, wherein in a Bohrflüssülvorlage the drilling fluid is kept, which is transported to the location of the well bore, where the drilling fluid in particular as lubrication and Rinsing agent is used in the drilling operations and is contaminated by soil components to form drilling mud and the drilling mud is transported to a treatment plant where there is at least partial separation of the soil constituents from the drilling mud, thereby rendering conditioned drilling fluid in the drilling mud Bohr mecanicungsvorlage is directed and stored and the separate soil or rock components are stored.
  • the inventive approach is not limited to the method as just described, but also includes a treatment plant for the treatment of resulting in a well drilling mud, the processing plant at least one input bunker, at least one processing or separation stage for a separation of soil or Comprises rock components from the drilling mud and a drilling mud template.
  • the approach according to the invention comprises a system for the treatment and at least partial recycling of drilling mud resulting from a well, which serves in particular for carrying out the method according to the invention, wherein the system comprises a treatment plant as just mentioned, a drilling device which collects the resulting drilling mud in a collector and transport means for transporting drilling mud held in the processing plant to the drilling rig at the location of the wellbore and for transporting drilling mud collected in the collector to the processing plant.
  • Bentonite is also recovered in the recycling process, either as bulk material or, because it is dissolved in the water, it is still in the drilling fluid after the recycling step.
  • the proposal according to the invention therefore also reduces the consumption of bentonite, since this additive is used several times.
  • the Bohrülülungsvorlage is at the treatment plant, which shows that the used transport vehicles always loaded, once with prepared drilling fluid to the site and on the way back with (dirty) drilling mud drives.
  • the central processing plant ensures a high processing quality.
  • the processing plant can be capacitively designed so that an effective process management is possible, which is also the basis for an economically successful concept.
  • the separated soil or rock components are skilfully stored in the processing plant and can be used there, for example, as building materials, for example in road construction and the like. Since the constituents have different particle sizes, one will make a mechanical separation with a variety of sieves and the like, the resulting fractionation of the material is advantageous for the further use of these materials.
  • the central use of a treatment plant also allows a complete documentation of the recovery of the drilling mud produced at the construction site and thus ensures that this material is not applied to agricultural land, for example, and may then enter the food chain.
  • the system according to the invention also ensures that the resulting drilling mud is actually disposed of by the construction site because Due to the data documentation it is known what quantity of drilling fluid was delivered there.
  • the proposal according to the invention combines in a simple and convincing manner an economically viable concept with a high level of environmental protection.
  • the proposal advantageously provides for the analysis of drilling mud delivered to the treatment plant and, depending on the result of the analysis, either a separation of the soil constituents from the drilling mud, a separation of the soil constituents from the drilling mud and a subsequent drilling Conditioning of the soil or rock components or a conditioning of the drilling mud and a subsequent landfill takes place.
  • the further processing, treatment or separation of the drilling mud takes place. It is provided in a first variant that, if the analysis reaches a harmless result, only one (for example mechanical) separation of the soil or rock constituents of the drilling mud takes place. If a substance is detected during the analysis that precludes conventional preparation, at least two further variants exist for the further procedure.
  • the noxious ingredient is non-volatile, ie suitably separable from the water, which makes up the majority of the drilling mud, and in a first variant separation of the soil or rock components from the drilling mud is performed, for example, by means of a thermal separation step and afterwards the remaining soil or rock components with the pollutant conditioned.
  • Conditioning is understood here to mean the admixture of a binder and the processing of the drilling mud into an impracticable solid, for example a concrete, that is, under some circumstances, another product that can be used. Alternatively, this resulting solid can also be deposited.
  • the analysis provided here can be done manually, for example, or in an automated step whereby, for example, common pollutants such as heavy metals, etc., are taken care of.
  • this is preferably realized in such a way that an analysis stage is provided in the conveying direction of the drilling mud before, in or after the inlet bunker, and the drilling mud is supplied to the processing or separation stages for processing depending on the analytical result.
  • the delivered drilling mud is stored in the input bunker, which represents a corresponding worklist for the treatment plant. It may be convenient that the analysis takes place prior to filling in the entrance bunker, for example, to spend the delivered cargo after analysis to another location, and there to feed the treatment. Alternatively, it is of course possible that the analysis or analysis stage is provided in or after the entrance bunker, and then, depending on the analysis result, quasi in the flow, the drilling mud is fed to one or the other treatment.
  • conditioning takes place by the addition of a binder, in particular cement, lime or a cement-lime mixture.
  • a binder in particular cement, lime or a cement-lime mixture.
  • this binder does not affect the setting of the drilling mud to a product of concrete strength.
  • the drilling mud contains bentonite, which binds a lot of moisture and also contains other additives such as polymers.
  • a concrete produced in this way is no longer chemically washable, which in particular improves its disposal as well as storability, but also its further use, for example as a building material or aggregate in road construction, or as liquid soil in sewer construction and so on.
  • the use of cement, lime or a lime-cement mixture for conditioning of borehole-containing, in particular bentonite-containing, mixed with soil or rock constituents drilling mud is also proposed. Also, this proposal solves the problem initially posed, because this will provide a means available to reuse the drilling mud at least partially, for example as aggregate or building material.
  • the following values are provided as the lower limit: 5, 8, 10, 12,% [weight] in relation to the mass of the drilling mud.
  • the upper limit is, for example, the following values: 15, 18, 20, 22, 25% [weight] in relation to the mass of the drilling mud.
  • the disclosure of this application includes the set of all intervals which consists of all possible combinations of the aforementioned upper and lower limits.
  • the lime-cement mixture has the following mixing ratios.
  • the upper limit is, for example, the following values: 30, 40, 50, 60, 65, 75, 85, 90% [weight] based on the mass of the mixture.
  • the upper limit is, for example, the following values: 30, 40, 50, 60, 65, 75, 85, 90% [weight] based on the mass of the mixture.
  • the disclosure of this application includes the set of all intervals defined by all possible combinations of the aforementioned upper and lower limits. According to the invention, the mixture may have further constituents, which is why the two fractions do not necessarily have to yield 100% in total. It is clear that the disclosure excludes those variants which exceed 100% in the sum of the individual constituents.
  • the drilling mud is separated by a thermal separation stage.
  • this separation stage is relatively energy consuming, but leads to a considerable material, i. Mass reduction, which is particularly advantageous for a subsequent landfill.
  • the thermal separation stage is used when a pollutant was found in the analysis provided on the input side, which can be isolated for example only by the thermal separation stage in a suitable manner.
  • the water evaporated in the thermal separation stage is condensed and the condenser heat released in this process is used to preheat the drilling mud.
  • the condenser heat released in this process is used to preheat the drilling mud.
  • the composition of the drilling mud is monitored in the drilling fluid master and, if appropriate, controlled by drilling mud suspension means is added.
  • drilling fluid suspending agent will be withdrawn from the drilling mud or the fluid as a result of the treatment of the drilling mud, which is then disadvantageous in the further use.
  • the drilling mud is separated mechanically, in particular by screening or centrifuging. Such treatment is more cost-effective and is particularly appropriate if no harmful pollutants were found in the analysis.
  • the invention also includes that the separate components, sorted by grain size and / or intended use as bulk or packaged bagged goods, or the like is stored.
  • FIG. 1 the entire cycle of drilling fluid is shown schematically.
  • the presentation begins with the filling of the reservoir 23 on the drill 2 with fresh drilling fluid, which was delivered here by the means of transport 3, 3a.
  • the fresh drilling fluid is then supplied to the drilling apparatus 2 from the reservoir 23 during operation of the drilling apparatus 2 (an exemplary horizontal drilling apparatus) via the conduit 21 for cooling and lubrication, as described.
  • Spent drilling fluid is collected as drilling mud via the line 22 in the collector 20 and collected there until the transport 3, 3b picks up there, which is consequently the same transport 3, 3a, which has previously filled the fresh drilling fluid into the reservoir 23.
  • the means of transport 3, 3c drives the drilling mud removed from the collector 2 to the input bunker 10 of the processing plant 1.
  • the analysis stage 11 in which an analysis of the supplied drilling mud is carried out and on the basis of this analysis result it is decided how the supplied drilling mud is processed by means of the various separation stages 12, 12a, 12b, 12c.
  • a drain line 13 connects, at which the various separation stages 12,12a, 12b, 12c through shut-off valves 14a, 14b, and 14c can be connected.
  • an automatically operating analysis stage 11 will act on the respective shut-off valves 14a, 14b, and 14c by appropriate actuators, thus allowing automated flow of the drilling mud.
  • the first separation stage 12a is used for heavily contaminated or contaminated drilling mud, in the direction of flow of the drilling mud in the discharge line 13 second separation stage 12, 12 b for less contaminated or contaminated drilling mud and the last separation stage 12, 12 c serves only a mechanically dominated separation of the soil and rock components of uncontaminated drilling mud. Therefore, the different concepts for the treatment or separation of the drilling mud fed into the separation stages differ from each other.
  • the first separation stage 12, 12 a conditions the drilling mud so that it can be stored in the landfill 4.
  • the conditioning is carried out by adding binder through the filling area 15 at the separation stage 12a.
  • the binder for example lime, cement or a lime-cement mixture, results in a concrete-like composite of the drilling mud, which can be landfilled, for example is because pollutants from these can not be washed out.
  • the second separation stage 12b is designed as a thermal separation stage and reduces the mass and volume of the drilling mud by evaporating the water in the drilling mud. Therefore, here also a steam cloud 16 is indicated and the separation stage 12b comprises a heater 17. Instead of losing the evaporated water in a water vapor cloud 16, it is also intended to recondensate the evaporated water in a heat exchanger and then to feed it via the conduit 18 to the Bohr Hughesvorlage 19 ,
  • the third separation stage 12c is also connected to the Bohr Hughesvorlage 19 via a line 100.
  • This third separation stage 12c is designed as a mechanically acting separation stage.
  • mechanical concepts are used which, for example, use gravity, different masses or different particle sizes of the components for a division / separation.
  • the separation stage 12c comprises one or more components of the following group: vibrating screen, cyclone, sieves, shakers, centrifuges (this list is not exhaustive).
  • this separation stage also includes a plurality of successively arranged components of the above-described group.
  • the reference numeral 5 denotes a heap of rubble of the soil and rock components produced as bulk material and produced in this separation step 12c. This material can be reused, for example, as a building material in road construction, or as an aggregate in other applications.
  • the Bohr Hughesvorlage 19 holds new, intended for use before, ready mixed drilling fluid, which is then filled if necessary in the transport vehicle 3, 3d, to transport this to the construction site where the drill 2 is located.
  • a mixer 101 is provided, which ensures homogenization of the prepared drilling fluid.
  • a sensor 102 is provided to monitor the quality of the drilling fluid held, and in particular to monitor the proportion of drilling fluid suspension means. If the proportion of Bohr mecanicungssuspensionsstoff too low, it will be replenished from the supply 103 to Bohrpülungssuspensionsstoff. This too can be done automatically.
  • the mixer 101 provides for even distribution of the newly introduced drilling fluid suspending agent.
  • a tanker vehicle As a means of transport 3, a tanker vehicle is seen in this overview, shown, but without limiting the invention, in particular the inventive system thereto. It is clear that instead of a tanker vehicle as a means of transport 3, a container transporter is provided which unloads or charges the corresponding containers at the construction site or the processing plant 1.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Treatment Of Sludge (AREA)
EP16164758.1A 2016-04-11 2016-04-11 Procédé de traitement et de recyclage de boue de forage Active EP3231983B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK16164758.1T DK3231983T3 (da) 2016-04-11 2016-04-11 Fremgangsmåde til behandling og genanvendelse af boreslam
EP16164758.1A EP3231983B1 (fr) 2016-04-11 2016-04-11 Procédé de traitement et de recyclage de boue de forage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16164758.1A EP3231983B1 (fr) 2016-04-11 2016-04-11 Procédé de traitement et de recyclage de boue de forage

Publications (2)

Publication Number Publication Date
EP3231983A1 true EP3231983A1 (fr) 2017-10-18
EP3231983B1 EP3231983B1 (fr) 2020-08-19

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EP16164758.1A Active EP3231983B1 (fr) 2016-04-11 2016-04-11 Procédé de traitement et de recyclage de boue de forage

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DK (1) DK3231983T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112647848A (zh) * 2020-11-30 2021-04-13 中海石油（中国）有限公司天津分公司 深井钻井过程模拟实验装置以及实验方法
CN114508314A (zh) * 2022-01-05 2022-05-17 中煤江南建设发展集团有限公司 钻孔用泥浆的循环使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022114878A1 (de) 2022-06-14 2023-12-14 NR Umwelttechnik GmbH Verfahren zur Verwertung von Bohrspülung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635735A (en) * 1984-07-06 1987-01-13 Schlumberger Technology Corporation Method and apparatus for the continuous analysis of drilling mud
US4942929A (en) * 1989-03-13 1990-07-24 Atlantic Richfield Company Disposal and reclamation of drilling wastes
WO1990009507A1 (fr) * 1989-02-07 1990-08-23 Gulf Canada Resources Limited Extraction d'huile a partir de deblais de forage contamines par des hydrocarbures
DE19745766A1 (de) * 1996-10-18 1998-04-23 Ms Dev Et Participation S A Schlammaufbereitungsstation für eine Tunnelvortriebsmaschine, deren Strebspitze aus durch Druck verdichtetem Schlamm besteht
US20070221410A1 (en) * 2006-03-23 2007-09-27 M-I L.L.C. Recovery system
WO2007109803A2 (fr) * 2006-03-23 2007-09-27 M-I Llc Système de récupération
WO2009154468A1 (fr) * 2008-06-20 2009-12-23 Cubility As Appareil de mélange et son procédé d’utilisation
US20100193249A1 (en) * 2009-01-30 2010-08-05 Terra Tersus LLC Drilling mud closed loop system, method, process and apparatus for reclamation of drilling mud
EP2530237A1 (fr) * 2011-05-31 2012-12-05 M S Station de traitement des boues associée à un tunnelier à front d'attaque pressurisé et procédé de gestion d'une telle station.
WO2015133986A1 (fr) * 2014-03-03 2015-09-11 Halliburton Energy Services, Inc. Polymère améliorant l'indice de viscosité destiné à traiter une formation souterraine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635735A (en) * 1984-07-06 1987-01-13 Schlumberger Technology Corporation Method and apparatus for the continuous analysis of drilling mud
WO1990009507A1 (fr) * 1989-02-07 1990-08-23 Gulf Canada Resources Limited Extraction d'huile a partir de deblais de forage contamines par des hydrocarbures
US4942929A (en) * 1989-03-13 1990-07-24 Atlantic Richfield Company Disposal and reclamation of drilling wastes
DE19745766A1 (de) * 1996-10-18 1998-04-23 Ms Dev Et Participation S A Schlammaufbereitungsstation für eine Tunnelvortriebsmaschine, deren Strebspitze aus durch Druck verdichtetem Schlamm besteht
US20070221410A1 (en) * 2006-03-23 2007-09-27 M-I L.L.C. Recovery system
WO2007109803A2 (fr) * 2006-03-23 2007-09-27 M-I Llc Système de récupération
WO2009154468A1 (fr) * 2008-06-20 2009-12-23 Cubility As Appareil de mélange et son procédé d’utilisation
US20100193249A1 (en) * 2009-01-30 2010-08-05 Terra Tersus LLC Drilling mud closed loop system, method, process and apparatus for reclamation of drilling mud
EP2530237A1 (fr) * 2011-05-31 2012-12-05 M S Station de traitement des boues associée à un tunnelier à front d'attaque pressurisé et procédé de gestion d'une telle station.
WO2015133986A1 (fr) * 2014-03-03 2015-09-11 Halliburton Energy Services, Inc. Polymère améliorant l'indice de viscosité destiné à traiter une formation souterraine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112647848A (zh) * 2020-11-30 2021-04-13 中海石油（中国）有限公司天津分公司 深井钻井过程模拟实验装置以及实验方法
CN114508314A (zh) * 2022-01-05 2022-05-17 中煤江南建设发展集团有限公司 钻孔用泥浆的循环使用方法

Also Published As

Publication number Publication date
DK3231983T3 (da) 2020-09-21
EP3231983B1 (fr) 2020-08-19

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