US20170175480A1 - Fluid injection tubing with a collar for a test string, having a locking system by abutment against the drilling well head ram - Google Patents

Fluid injection tubing with a collar for a test string, having a locking system by abutment against the drilling well head ram Download PDF

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Publication number
US20170175480A1
US20170175480A1 US15/102,102 US201315102102A US2017175480A1 US 20170175480 A1 US20170175480 A1 US 20170175480A1 US 201315102102 A US201315102102 A US 201315102102A US 2017175480 A1 US2017175480 A1 US 2017175480A1
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US
United States
Prior art keywords
fluid injection
test column
fluid
throat
injection tube
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.)
Abandoned
Application number
US15/102,102
Inventor
Antonio Sergio CAVALHEIRO
Mario Cesar PEREIRA DOS SANTOS
Leandro Diniz Brandao ROCHA
Hamilton SUSS JUNIOR
Jose Roberto SCALON COTELLO
Ronaldo SOARES EISELE
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.)
Slim Drilling Servicos De Perfuracao SA
Original Assignee
Slim Drilling Servicos De Perfuracao SA
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 Slim Drilling Servicos De Perfuracao SA filed Critical Slim Drilling Servicos De Perfuracao SA
Publication of US20170175480A1 publication Critical patent/US20170175480A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/066—Valve arrangements for boreholes or wells in wells electrically actuated
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells

Definitions

  • the descriptive report hereof refers to a patent of invention request to an adaptation made in a tube, in which a fluid is injected through a drilling shaft test column.
  • This new fluid tube receives a throat and, after being threaded to the threaded box of the upper rod partially exposed in the shaft head, a stopper is formed against the BOP (uncontrolled flow prevention system) closed compartment.
  • BOP uncontrolled flow prevention system
  • the phase step (where absorption and rock break skill are defined), the pressure applied within the shaft during the test results in an top-bottom force, so then the test column is prevented from expelling by the tube throat locking against the BOP closed compartment lower edge.
  • test column a tubular column referred as test column is inserted to a drilling shaft, having its upper rod partially exposed in the shaft head with its threaded box placed to screw the threaded nozzle of a fluid injection tube.
  • the fluid injection tube in turn gets attached to a pump oversleeve coupling connected to a fluid reservoir, then the referred fluid injection tube is surrounded by the BOP (inflow prevention system and connection between the coating and shaft head), compartment closing, forming a seal over the said shaft head.
  • BOP inflow prevention system and connection between the coating and shaft head
  • test column flat wall help the latter to exceed the locking traction force, formed by closed compartments over the column.
  • the said test column slides through the surrounding fluid tube passage, as it may move itself regarding its estimated original position in the platform, then risking the test execution and bringing threats to the operation and staff on the operation platform.
  • the fluid injection tube here, due to its body adaptation, presents a new locking system that prevents the test column to escape through BOP (Blow out prevention system) compartments under great pressure.
  • Picture 1 perspective view of the fluid injection tube, showing its upper threaded nozzle to screw the crane connector/lifting system, as well as the fluid input to the pump oversleeve coupling connected to the fluid reservoir.
  • section A-A is indicated;
  • Picture 3 expanded details A, in a perspective, showing upper and lower-end nozzle of the fluid injection tube;
  • Picture 4 the shaft drilled by the gas/oil probing system drill column is shown, and along with its head surrounded by the compartments, the test column is being inserted in the test phase to create a history about soil characteristics;
  • Picture 5 view of the previous picture, which shows the test column being inserted in the shaft;
  • Picture 6 view of the previous picture, which shows the test column already inserted;
  • the fluid injection tube lower nozzle is screwed by the partially exposed upper threaded box on the shaft head, incorporating the external throat right above.
  • the fluid input is located along with the upper threaded nozzle;
  • Picture 7 view of the previous picture, showing the closed compartments, incorporating the shaft head and sealing them over the fluid injection tube body. Together with detail B, showing the external throat in an extended manner, incorporated to its lower end, located right below the compartments edge;
  • Picture 8 view of the previous picture, showing the fluid (due to pump action not shown) is injected, through the oversleeve, fluid input and injection tube cylindrical body, which penetrates in the test column and, eventually in the shaft bottom under pressure;
  • Picture 9 view of the previous picture, which shows the fluid reaching the shaft head
  • Picture 10 view of the previous picture, showing the fluid applying a force from the shaft bottom and pressing the test column coupled to the fluid tube, upwards to the compartment. Together with detail C, showing the pressure and force applied by the fluid through arrows in an extended manner.
  • Picture 11 view of the previous picture, showing the fluid injection tube pushed upwards with the test column, when the throat is delimited under the lower edge of the compartments, forming a stop locking system along with the latter.
  • the test column interrupts its lifting course and it avoids the escape from the compartments and it is expelled from the drilled shaft.
  • This system is shown in detail D in an extended manner.
  • the FLUID INJECTION TUBE WITH THROAT FOR A TEST COLUMN WITH A STOP LOCKING SYSTEM IN DRILLING SHAFT HEAD COMPARTMENT is comprised of a fluid injection tube ( 1 ) to be used in a test column (E) of the probing equipment, which has an upper end with a threaded nozzle ( 2 ) and a head ( 3 ) with a fluid input ( 4 ).
  • the fluid tube ( 1 ) has an internal threaded nozzle ( 5 ) and, an external throat ( 6 ) is incorporated right above, as shown in pictures 1 , 2 and 3 .
  • the fluid injection tube ( 1 ) then providing a new stop locking system to the test column (E) used in the test phase, to create the history for soil characteristics (S) in drilled shafts (P) in gas/oil operations.
  • test column (E) is guided and inserted through the probing equipment lifting system (not shown) inside the shaft (P), surpassing its head (CA), where BOP (Blow Out prevention system) compartments (G) are installed.
  • the test column (E) partially looses its partially exposed upper rod with a threaded box (C).
  • the fluid injection tube ( 1 ) is screwed to the threaded box (C) of the upper rod, coupled to the test column (E), as shown in pictures 6 and 7 .
  • compartments (G) surrounding the shaft head (P) are closed and faced by their edges on the fluid injection tube body ( 1 ), creating a sealing against uncontrolled gas flows.
  • the fluid injection tube ( 1 ) throat ( 6 ) as especially shown in detail B of picture 7 , it is located right below the closed compartments (G) edge.
  • the test injection is started, as shown in pictures 8 and 9 , when the fluid goes through the fluid injection tube ( 1 ) and also through the test column (E) until it reaches the shaft bottom (P).
  • the test column (E) tends to be pushed upwards and it surpasses its traction forces through its smooth walls within itself and the closed BOP compartment, then it slides itself, as it forces its escape through such compartments (C), as shown in picture 10 and its extended detail C.
  • test column (E) carries the coupled fluid injection tube ( 1 ) while lifting, which is locked up under the compartment (G) lower edge with its throat ( 6 ), according to the request of patent hereof.
  • the stop locking system between the throat ( 6 ) and compartment (G) lower edges prevents the test column (E) from breaking through the compartment (G) sealing and expelling itself
  • test column (E) As the test column (E) is duly locked, the test may be accurately carried out through a sensor system installed in the probe, without impairing the history of soil characteristics regarding the drilled shaft (P)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Earth Drilling (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

For the safety of fluid injection tubes with the shaft head. A fluid injection tube (1) to be used in safety locking test columns, where a fluid injection tube (1) is used in a test column (E) of a probing equipment receives a throat (6) incorporated within its lower edge, right above its nozzle with inner threads (5). After inserting the test column (E) inside the drilling shaft (P) and coupling the fluid injection tube (1), as BOP (blow out prevention system) compartments (G) are closed, the throat (6) is located right below the lower edge of such closed compartments (G). With the fluid injection, if the test column (1) is pushed and slided upwards, the fluid injection tube (1) coupled to the shaft is locked by its throat (6) under the compartments (G) lower edge With this stop locking system between the throat (6) and compartments (G) edge, the test column (E) is prevented from exceeding the traction force of compartments (G) and being expelled from the probing equipment platform.

Description

  • The descriptive report hereof refers to a patent of invention request to an adaptation made in a tube, in which a fluid is injected through a drilling shaft test column. This new fluid tube receives a throat and, after being threaded to the threaded box of the upper rod partially exposed in the shaft head, a stopper is formed against the BOP (uncontrolled flow prevention system) closed compartment.
  • After injecting the fluid, the phase step (where absorption and rock break skill are defined), the pressure applied within the shaft during the test results in an top-bottom force, so then the test column is prevented from expelling by the tube throat locking against the BOP closed compartment lower edge.
    • TECHNIQUE STATUS
  • As it is known while shaft drilling in probe system, inasmuch as advancing some layers hit by the chaplet drill shall be tested in a phase called “Absorption Test”. By fluid actions inside the shaft bottom a history shall be defined, which contains soil characteristics for a further analysis by the responsible staff to proceed with drilling operations in compliance to safety standards.
  • For instance, the patent document PI 8108500-1 so-called “INNER TUBE ELEMENT FOR A PROBING TEST DEVICE AND MANUFACTURING PROCESS OF A LOWER TUBE ELEMENT” may be mentioned, which was requested in Dec. 29, 1981.
  • To proceed with the test, a tubular column referred as test column is inserted to a drilling shaft, having its upper rod partially exposed in the shaft head with its threaded box placed to screw the threaded nozzle of a fluid injection tube. In the platform, the fluid injection tube in turn gets attached to a pump oversleeve coupling connected to a fluid reservoir, then the referred fluid injection tube is surrounded by the BOP (inflow prevention system and connection between the coating and shaft head), compartment closing, forming a seal over the said shaft head.
  • After closing BOP compartments surrounding the fluid injection tube, the pump is actuated for such injection, passing test column and going to the shaft bottom, pressurizing it. In this condition, all shaft interior part, as well as the shaft head and BOP, closed by the compartments, undergoes great pressures that are applied from the bottom, which reflects against the test column bottom, forcing it continuously upwards.
  • Such condition, along with the test column flat wall, help the latter to exceed the locking traction force, formed by closed compartments over the column. When it is pushed upwards, the said test column slides through the surrounding fluid tube passage, as it may move itself regarding its estimated original position in the platform, then risking the test execution and bringing threats to the operation and staff on the operation platform.
    • PURPOSE OF PATENT
  • The fluid injection tube here, due to its body adaptation, presents a new locking system that prevents the test column to escape through BOP (Blow out prevention system) compartments under great pressure.
  • In an overview explanation regarding the fluid injection and its surrounding system, as this patent request purpose, they shall be better detailed in the attached drawings, which describe:
  • Picture 1—perspective view of the fluid injection tube, showing its upper threaded nozzle to screw the crane connector/lifting system, as well as the fluid input to the pump oversleeve coupling connected to the fluid reservoir. On the lower end of said fluid injection tube, prior to its threaded nozzle (screwed to the threaded box of the test column rod), there is an external throat included, developed for a stop system locking against BOP compartments. In such view, section A-A is indicated;
  • Picture 2—section A-A;
  • Picture 3—expanded details A, in a perspective, showing upper and lower-end nozzle of the fluid injection tube;
  • The following pictures from 4 to 11, in schematic views, refer to the installation of the fluid injection tube and its locking system created for the test column. Both the fluid injection tube and test column rods and drilled shaft have been drawn with its expansion cut and reduced for a better system comprehension:
  • Picture 4—the shaft drilled by the gas/oil probing system drill column is shown, and along with its head surrounded by the compartments, the test column is being inserted in the test phase to create a history about soil characteristics;
  • Picture 5—view of the previous picture, which shows the test column being inserted in the shaft;
  • Picture 6—view of the previous picture, which shows the test column already inserted; The fluid injection tube lower nozzle is screwed by the partially exposed upper threaded box on the shaft head, incorporating the external throat right above. The fluid input is located along with the upper threaded nozzle;
  • Picture 7—view of the previous picture, showing the closed compartments, incorporating the shaft head and sealing them over the fluid injection tube body. Together with detail B, showing the external throat in an extended manner, incorporated to its lower end, located right below the compartments edge;
  • Picture 8—view of the previous picture, showing the fluid (due to pump action not shown) is injected, through the oversleeve, fluid input and injection tube cylindrical body, which penetrates in the test column and, eventually in the shaft bottom under pressure;
  • Picture 9—view of the previous picture, which shows the fluid reaching the shaft head;
  • Picture 10—view of the previous picture, showing the fluid applying a force from the shaft bottom and pressing the test column coupled to the fluid tube, upwards to the compartment. Together with detail C, showing the pressure and force applied by the fluid through arrows in an extended manner.
  • Picture 11—view of the previous picture, showing the fluid injection tube pushed upwards with the test column, when the throat is delimited under the lower edge of the compartments, forming a stop locking system along with the latter. In this condition, the test column interrupts its lifting course and it avoids the escape from the compartments and it is expelled from the drilled shaft. This system is shown in detail D in an extended manner.
    •
  • According to the attached drawings, the FLUID INJECTION TUBE WITH THROAT FOR A TEST COLUMN WITH A STOP LOCKING SYSTEM IN DRILLING SHAFT HEAD COMPARTMENT”, object of this request of patent, is comprised of a fluid injection tube (1) to be used in a test column (E) of the probing equipment, which has an upper end with a threaded nozzle (2) and a head (3) with a fluid input (4). In its lower end, the fluid tube (1) has an internal threaded nozzle (5) and, an external throat (6) is incorporated right above, as shown in pictures 1, 2 and 3.
  • As the incorporated throat (4) is considered an innovation, the fluid injection tube (1), then providing a new stop locking system to the test column (E) used in the test phase, to create the history for soil characteristics (S) in drilled shafts (P) in gas/oil operations.
  • As shown in pictures 4 and 5, the test column (E) is guided and inserted through the probing equipment lifting system (not shown) inside the shaft (P), surpassing its head (CA), where BOP (Blow Out prevention system) compartments (G) are installed. The test column (E) partially looses its partially exposed upper rod with a threaded box (C). Afterwards, in its lower end threaded nozzle (5), the fluid injection tube (1) is screwed to the threaded box (C) of the upper rod, coupled to the test column (E), as shown in pictures 6 and 7.
  • Then the of compartments (G) surrounding the shaft head (P) are closed and faced by their edges on the fluid injection tube body (1), creating a sealing against uncontrolled gas flows. As such, the fluid injection tube (1) throat (6), as especially shown in detail B of picture 7, it is located right below the closed compartments (G) edge.
  • After receiving it from the fluid input (4), the oversleeve connection (M) of the pump connected to the fluid reservoir (not shown), the test injection is started, as shown in pictures 8 and 9, when the fluid goes through the fluid injection tube (1) and also through the test column (E) until it reaches the shaft bottom (P). In case of great pressures applied by the fluid from the shaft bottom (P), the test column (E) tends to be pushed upwards and it surpasses its traction forces through its smooth walls within itself and the closed BOP compartment, then it slides itself, as it forces its escape through such compartments (C), as shown in picture 10 and its extended detail C.
  • In this condition, the test column (E) carries the coupled fluid injection tube (1) while lifting, which is locked up under the compartment (G) lower edge with its throat (6), according to the request of patent hereof. As shown in detail D of picture 11, the stop locking system between the throat (6) and compartment (G) lower edges prevents the test column (E) from breaking through the compartment (G) sealing and expelling itself
  • As the test column (E) is duly locked, the test may be accurately carried out through a sensor system installed in the probe, without impairing the history of soil characteristics regarding the drilled shaft (P)

Claims (3)

1) “FLUID INJECTION TUBE WITH THROAT, FOR A TEST COLUMN”, comprised of a fluid injection tube (1) to be used in a test column (E) of a probing equipment, which has an upper end with a threaded nozzle (2) followed by a head (3) with a fluid input (4), as such fluid tube (1) has an internal threaded nozzle (5) in its lower end, characterized by incorporating a throat (6) externally, right above the latter (5).
2) “STOP LOCKING SYSTEM IN A DRILLING SHAFT HEAD COMPARTMENT”, according to claim 1, after inserting the test column (E) inside the shaft (P), exceeding the shaft head (CA) to be screwed between its threaded box (C) and threaded nozzle (2) of the fluid tube (1), the BOP (blow out uncontrolled flow prevention system) compartment (G) closing is carried out, facing the said fluid injection tube (1) body, which is, in such condition, characterized by positioning its throat (6) right below the closed compartments (G) lower ends.
3) “STOP LOCKING SYSTEM IN A DRILLING SHAFT HEAD COMPARTMENT”, according to claims 1 and 2, after starting the fluid injection, passing the oversleeve (M) through the fluid injection tube (1) and test column (E) until it reaches the shaft bottom (P). If the pressure applied there pushes the test column (E) upwards, that item is delimited in its throat (6) movement while carrying the coupled fluid tube (1), it is characterized by locking the stop under the compartment lower end (G), preventing the said test column (E) to exceed the traction forces between that column and BOP compartments (G), without getting expelled.
US15/102,102 2013-12-05 2013-12-05 Fluid injection tubing with a collar for a test string, having a locking system by abutment against the drilling well head ram Abandoned US20170175480A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2013/000544 WO2015081392A1 (en) 2013-12-05 2013-12-05 Fluid injection tubing with a collar for a test string, having a locking system by abutment against the drilling well head ram

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US20170175480A1 true US20170175480A1 (en) 2017-06-22

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US (1) US20170175480A1 (en)
BR (1) BR112015021109A2 (en)
WO (1) WO2015081392A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030354A (en) * 1976-02-27 1977-06-21 Scott Kenneth F Testing of ram and annular blowout preventers
US4881598A (en) * 1988-11-03 1989-11-21 Conoco Inc. Blow-out preventor test tool
US20130292134A1 (en) * 2012-05-03 2013-11-07 Daniel R Mullins, Inc. Assembly And Method To Secure Tubing String to Blowout Preventer
US20130341089A1 (en) * 2012-06-21 2013-12-26 Complete Production Services, Inc. Control system and method for a well completion system

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Publication number Priority date Publication date Assignee Title
US4375239A (en) * 1980-06-13 1983-03-01 Halliburton Company Acoustic subsea test tree and method
US5555945A (en) * 1994-08-15 1996-09-17 Halliburton Company Early evaluation by fall-off testing
DE69531747D1 (en) * 1995-07-25 2003-10-16 Nowsco Well Service Inc SECURED METHOD AND DEVICE FOR FLUID TRANSPORT WITH WINDED PIPE, WITH APPLICATION IN TESTING DRILL BODIES
US6330913B1 (en) * 1999-04-22 2001-12-18 Schlumberger Technology Corporation Method and apparatus for testing a well
US6715550B2 (en) * 2000-01-24 2004-04-06 Shell Oil Company Controllable gas-lift well and valve
US6662875B2 (en) * 2000-01-24 2003-12-16 Shell Oil Company Induction choke for power distribution in piping structure
CA2401730C (en) * 2000-03-02 2009-08-04 Harold J. Vinegar Controllable production well packer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030354A (en) * 1976-02-27 1977-06-21 Scott Kenneth F Testing of ram and annular blowout preventers
US4881598A (en) * 1988-11-03 1989-11-21 Conoco Inc. Blow-out preventor test tool
US20130292134A1 (en) * 2012-05-03 2013-11-07 Daniel R Mullins, Inc. Assembly And Method To Secure Tubing String to Blowout Preventer
US20130341089A1 (en) * 2012-06-21 2013-12-26 Complete Production Services, Inc. Control system and method for a well completion system

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Publication number Publication date
BR112015021109A2 (en) 2020-10-27
WO2015081392A1 (en) 2015-06-11

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