WO2013042128A2 - Système et procédé de production simultanée et séparée de pétrole et de gaz à partir de plusieurs zones d'un puits - Google Patents

Système et procédé de production simultanée et séparée de pétrole et de gaz à partir de plusieurs zones d'un puits Download PDF

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Publication number
WO2013042128A2
WO2013042128A2 PCT/IN2011/000368 IN2011000368W WO2013042128A2 WO 2013042128 A2 WO2013042128 A2 WO 2013042128A2 IN 2011000368 W IN2011000368 W IN 2011000368W WO 2013042128 A2 WO2013042128 A2 WO 2013042128A2
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WO
WIPO (PCT)
Prior art keywords
clamp
production
casing
production chamber
oil
Prior art date
Application number
PCT/IN2011/000368
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English (en)
Other versions
WO2013042128A3 (fr
Inventor
Chanchal DASS
Original Assignee
Dass Chanchal
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 Dass Chanchal filed Critical Dass Chanchal
Publication of WO2013042128A2 publication Critical patent/WO2013042128A2/fr
Publication of WO2013042128A3 publication Critical patent/WO2013042128A3/fr

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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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/165—Control or monitoring arrangements therefor
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions

Definitions

  • the present invention relates to a new technology directed to downhole oil and gas exploration and production industries for multiple zone well completion. More particularly, the present invention relates to a technology related to novel production chambers fitted inside the well which, when installed into oil/gas reservoirs would allow production flows of the oil and gas from multiple zones simultaneously without permitting conventional inter layer cross flows.
  • US2830665 Patent having the title “Multiple Well Completion” discloses a technology to provide equipment for running gas lift apparatus down the well through the pipe hanger apparatus. Wherein, airlift apparatus may be run through the pipe hanger means in connection with a string of pipe without the necessity of altering or removing the hanger means. It claims novel design to permit the running of gas lift valves and apparatus through the same openings provided for running and suspending the well pipe strings and thereby eliminating the necessity of removing the hangers to run the gas lift valve and apparatus into the well. Whereas, this invention does not explain or claims about the combined two phase (oil and gas) production through a single tubing and it depicts complicate multiple well pipe tubing strings for lifting oil and gas from the available underground zones. However, this instant applied technology uses single tubing and thereby reduces capital expenditure and operating expenditure and thereby claims economically sound technology. US5964289 Patent bearing the title "Multiple Zone Well Completion
  • Method and Apparatus discloses a gystem and method for completing a well for the collection of fluids from a plurality of subterranean zones at different depths.
  • the system includes a fluid pathway along which a first and second fluid travels.
  • the first and second fluids form an interface that is moved along the fluid pathway to cause the formation of a fracture in the zones.
  • the pressure at any point along the fluid pathway depends upon the position of the interface.
  • the main theme or focus of this invention is provide a reduced cost method for fracturing multiple zones at continued strategy in a well by reducing the number and complexity of steps and the time and cost required to compete a well.
  • GB1161466 also deals with multiple zone well completion with common inlet and production tubings wherein means said common inlet tubing for in communication with the various zones above its lower end and connected at its lower end to a common production tubing for all of the zones, in combination with a selector means for selectively permitting fluid flow from one of the different zones to . the inlet tubing.
  • the tubing system is capable of achieving extremely effective separation of the oil and gas produced by each zone during production of oil from such zone by pumping, the gas produced by each zone flowing upwardly to the surface through the inlet tubing, and the oil produced by each zone being pumped upwardly to the surface through the production tubing.
  • this invention teaches to produce sequential production flows from various zones without any significant intermingling of either the oil or the gas from the different zones.
  • this cited invention has assisted in solving problems as described, it still leaves the scope for improvements to provide a simple, cost effective, user friendly technology and simultaneous production flows as provided by the instant technology and it would not be as suitable for the purposes such as, interlayer cross flow problems occurring in the multiple oil and gas zones with different pressure gradient, accelerated and improved production of oil and gas through the single tubing, reduction of capital expenditure and operating expenditure, maximizing recovery efficiency and simplification of total production operation, as that of the instant invention.
  • the present invention also overcomes aforesaid difficulties and disadvantages and fulfils the neediness for simple and efficient process for simultaneous and segregate production of oil and gas through single tubing by providing a technology which is different from the conventional wells and in which there involves the reservoir fluid which can not enter into the well bore directly.
  • the perforations of different layers are capped with a novel device termed as Production Chamber and the fluids from the reservoirs are entered to the wellbore through the production chambers but before being entered in to the oil transport tubing; and the non return valve that fitted with each of the production chambers stops back flow of fluid from the well bore to reservoir and thereby prevents interlayer cross flows.
  • Production Chamber a novel device termed as Production Chamber and the fluids from the reservoirs are entered to the wellbore through the production chambers but before being entered in to the oil transport tubing; and the non return valve that fitted with each of the production chambers stops back flow of fluid from the well bore to reservoir and thereby prevents interlayer cross flows.
  • This current technology can also be extensively used in the ground water industry for production of water from multiple layers.
  • This technology can be used in coal bed methane where multiple coal beds available in a well. This technology will also be helpful in situations where multiple layer production/ injection of fluid involved like CO2 storage and sequestration.
  • the main object of this invention is to provide a technology for simultaneous and segregated production flows of oil and gas from multiple zone reservoirs using single tubing without inter layer cross flow.
  • Another object of the technology is to optimize the production and maximize the recovery with reduced Capital Expenditure (CAPEX) and Operating Expenditure (OPEX). Accordingly, recovery efficiency is improved by 5- 10% by improving vertical and areal sweep efficiencies and oil and gas lifting, handling, storage and transportation cost is reduced.
  • Another object of this instant invention is to prevent the inter layer cross flow which is a major problem during the shut in condition in a commingled production of oil and gas from multilayered reservoirs. Accordingly an effective technology and device called production chamber is fitted with the casing to prevent said conventional interlayer cross flow problem.
  • production from each layer can be controlled by lowering bottom hole flowing pressure and thereby maximizing production from each layer.
  • Yet another object of this invention is to provide the technology for improved overall system efficiency. Accordingly, the closed spaced well technology improves floodablity, reduce bypassed area, helps in mid course pattern modification in case direction permeability is observed. This is a technology to club production engineering, well engineering and reservoir engineering to make whole production, system efficient.
  • Still another object of this invention is to provide improvements in well productivity. Accordingly, in this invention there is a provision for maintaining the reservoir pressure by injecting displacement fluid to maintain gas oil ratio from the well over the period while the water oil ratio will go on increasing and further ESP (Electrical submersible Pump) is installed from day one itself, so draw down can be applied as per deliverability of the reservoir and rock properties which improves well productivity. Still another object of this invention is to reduce the drilling cost for drilling two different wells separately for oil and gas production. Accordingly, in the present invention there is a provision for producing oil and gas separately through single well without drilling two separate wells for each zone that being done conventionally for the producing oil and gas.
  • ESP Electrodetecible Pump
  • the present invention has the provision of producing multiple oil and gas sands from the same well.
  • the present invention provides an improved technology and process for simultaneous and segregated oil and gas production from multilayered oil/gas fields through single oil transport tubing.
  • This innovative oil and gas production process helps to accelerate the said production and improves the recovery efficiency with reduced costs.
  • This technology also helps in the efficient production, separation, handling and transportation of oil and gas in the upstream sector of the oil and gas industry.
  • This invention allows to the said oil and gas production from all the oil and gas zones available in a well and do so through a single oil transport tubing thereby saving significant costs of drilling separate wells for each zone.
  • the core of this invention is to have novel production chambers, each of which, when installed inside the casing of the well, changes the entire conventional production process.
  • the said production chambers are fitted inside the casing through a clamp block arrangement and the production chamber is sealed hermitically through a special sealing arrangements.
  • This invention does not allow the oil from the multiple zones to enter directly into the oil transport tubing wherein but a non return valve being fitted with each of the said production chambers allows the oil to enter first into the well-bore and then to the oil transport tubing and hence the said non-return valve prevents the oil to flow from the well-bore to the reservoir and thereby prevents inter layer cross flow.
  • This invention further allows separating the liquid and gas by means of gravity segregation and centrifugal action and thereby to produce the gas through the annulus space and oil through the oil transport tubing.
  • the said annulus space means the void space between production chamber tubing, oil transport tubing or casing and the production chamber tubing, oil transport tubing or casing immediately surrounding it.
  • Fig. 1 illustrates one embodiment of perspective vertical sectional view of portion of a well showing one of its production chambers, supporting assembly and other essential components.
  • Fig. 2 illustrates perspective enlarged vertical sectional view of Fig. 1.
  • Fig. 3 illustrates perspective exploded and enlarged view taken along arrowed line 4' - 4' of Fig. 1 which represents lower body portion of a production chamber.
  • Fig. 4 illustrates perspective exploded and enlarged view taken along arrowed line 5' - 5' of Fig. 1 which represents the upper body portion of a production chamber.
  • Fig. 4 illustrates perspective exploded and enlarged view taken along arrowed line 5' - 5' of Fig. 1 which represents the upper body portion of a production chamber.
  • Fig. 1 depicts a preferred configuration of a well (24) according to the present invention in hydrocarbon bearing reservoirs.
  • the well (24) includes an outer cylindrical casing (20), a cylindrical oil transporting tubing (21) having a submersible motor pump (not shown in the figure) fitted at its bottom surface, production chambers (22) means each of said production chambers that includes or consist of an upper body part (9), a lower body part (16), a production chamber tubing (25), a Non Return Valve (NRV) assembly (15); and a supporting assembly for supportably fixing each of the said production chambers with the outer casing (20).
  • NSV Non Return Valve
  • each production chambers are traversed one by one with the help of said supporting assembly and the single oil transport tubing being installed inside the hollow interior of production chambers.
  • annulus space between the production chambers, oil transport tubing or casing and the production chambers, oil transport tubing or casing immediately surrounding it.
  • each hydrocarbon bearing layers of subterranean zones that are encountered in a well is perforated.
  • all the perforated intervals are capped with 1 the production chambers (22) said manner in such a way that for each layer a single production chamber is employed.
  • the fluid from the reservoir layers are entered into the production chamber through perforated holes (23).
  • a non return valve (26) is mechanically fitted at the top portion of each of the production chambers.
  • a Mounting or torqueing tool (1) a clamp pressure ring (2), a clamp taper ring (3), a clamp spider positioning ring (4), a clamp spider (5), a clamp block (6), a clamp stopper (7), an upper seal spacer (8), an upper connector (12), a lower connector (13), a seal stopper (14), a lower seal spacer (8'), a taper clamp bush (17), a clamping tool (18), an upper seal set (19) and a lower seal set (19').
  • said NRV assembly is mechanically fitted between the upper body part (9) and the upper connector (12).
  • Mounting or Torqueing tool when torque is applied during the installation
  • the mounting or toqueing tool being mounted on the top surface of the upper body part (9) exerts pressure on the upper seal set (19) to expand and seal the space between the production chamber (22) and casing.
  • This Clamp pressure ring (2) being disposed below the said mounting or torqueing tool to transmit the torque applied on the mounting tool (1) to the upper and lower seal sets (19) and (19').
  • Clamp taper ring The purpose of this clamp taper ring (3) is to push the clamp block (6) toward the casing (20) and two clamp taper rings are used per set of a production chamber.
  • Clamp spider position pin This clamp spider position pin (4) keeps the clamp spider (5) in position. Three such pins are used per set of a production chamber.
  • Clamp Spider The purpose of the clamp spider (5) is to hold the clamp block. It has three pinholes to insert the three clamp spider position pins and six slots to accommodate six set of clamp blocks. One clamp spider is required for per set of a production chamber.
  • Clamp block Six clamp blocks being circularly surrounded between the two clamp taper rings to hold the each entire production chambers against the casing (20) and thereby acts as a mechanical support between the casing and the production chamber.
  • Clamp stopper Clamp stopper (7) being placed below the taper ring (3) is used to stop or halt the movement of the clamp taper ring (3).
  • One clamp stopper is used for per set of a production chamber (22).
  • Seal spacer There are two seal spacers i.e., upper seal spacer (8) and lower seal spacer (8') are provided per set of production chamber.
  • Upper seal spacer (8) is placed between the clamp stopper (7) and upper seal set (19) and the lower seal spacer (8') is provided between lower seal set (19') and lower body part (16) of the production chamber.
  • This upper connector (12) is one of the most important part of the production chamber which holds the upper body part of the production chamber (9) which in turn holds said mounting or torqueing tool (1), clamp pressure ring (2), clamp taper ring (3), clamp spider position pin (4), clamp spider (5), clamp block, clamp stopper (7), upper seal spacer (8), upper seal set (19), and NRV assembly (15).
  • the upper connector (12) mechanically connects the upper body part of the production chamber (9) to the production chamber tubing (25).
  • This lower connector (13) holds the lower body part (16) of the production chamber which in turn mechanically holds the lower portions of the supporting members such as the seal stopper (14), taper clamp bush (17), lower seal set (19') and lower seal spacer (8'); and holds the production chamber against casing while setting the production chamber in place.
  • the lower connector (13) mechanically connects the lower body part (16) of the production chamber to the production chamber tubing (25).
  • This seal stopper (14) is used between lower seal set (19') and lower connector (13).
  • Taper clamp bush This taper clamp bush (17) is used to set the production chamber in place initially and hold the production chamber in place and when pressure is applied, it helps the expansion of the taper part and clamps the whole bottom portion of the production chamber against the casing.
  • the said Non Return Valve (NRV) assembly (15) consists of a piston (10) to prevent the cross flow of the fluid, NRV entry port (27), an exit port (29) and a spring (11) used to control the movement of the piston.
  • the said piston has six micro-holes around its body to provide means for lubrication during the movement of the piston.
  • the oil and gas from the given layers enter into the space between the casing (20) and the production chamber (22) through the perforated holes (23) and flows in upward direction to enter into the entry port (27) of the NRV assembly (15) before being entered into the oil transport tubing (21).
  • the spring (11) of the NRV assembly gets compressed by the differential pressure and hence the piston of the NRV assembly (15) moves downward to expand the exit port (29) and thereby, as directed in the Fig. 2, the fluid flows into the space between the oil transport tubing (21) and the production chamber tubing (25).
  • the fluid enters into the said space in such a way that it attains a centrifugal action to take place gas and oil separation in combination of centrifugal force and the force of gravity and hence thereby the oil is collected at the bottom level of oil transport tubing (21) and gas flows in the upward direction to produce through the annulus (30) between the casing and the oil transport tubing.
  • a mist extractor is placed near the top of the well (24). The mist extractor (not shown in the figure) is lowered along with oil transport tubing. The oil collected at the bottom portion of the said oil transport tubing is lifted up with the help of the submersible motor pump. Whereas, if the said differential pressure as explained earlier is zero or negative the spring expands and closes the entry port (27) and thereby prevents the inter layer cross flow.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

La présente invention concerne un système et un procédé de production simultanée et séparée de fluides (pétrole et gaz) à partir de plusieurs zones trouvées dans un puits (24) au moyen d'une colonne de production unique en installant de nouvelles chambres de production équipées d'un clapet anti-retour qui est monté au-dessus des perforations du tubage (20) au moyen d'un agencement de blocs de serrage et d'agencements d'étanchéité spécifiques afin de sceller hermétiquement la chambre de production à l'intérieur du tubage. Cette technologie est principalement destinée à prévenir les écoulements transversaux entre les couches dans la production combinée traditionnelle. Cette invention permet de séparer le pétrole et le gaz à l'intérieur du puits de forage. La présente invention permet de créer simultanément des zones de pétrole et de gaz à partir du même puits.
PCT/IN2011/000368 2010-06-03 2011-05-30 Système et procédé de production simultanée et séparée de pétrole et de gaz à partir de plusieurs zones d'un puits WO2013042128A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1124-MUM-2010 2010-06-03
IN1124MU2010 2010-06-03

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Publication Number Publication Date
WO2013042128A2 true WO2013042128A2 (fr) 2013-03-28
WO2013042128A3 WO2013042128A3 (fr) 2013-07-04

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105804709B (zh) * 2016-04-15 2019-03-08 中国石油天然气股份有限公司 一种气井分层开采用的集成配产器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466484A (en) * 1981-06-05 1984-08-21 Syminex (Societe Anonyme) Electrical device for promoting oil recovery
US20020117301A1 (en) * 2001-02-26 2002-08-29 Womble Allen W. Single trip, multiple zone isolation, well fracturing system
US20030150622A1 (en) * 2002-02-13 2003-08-14 Patel Dinesh R. Formation isolation valve
US20060060352A1 (en) * 2004-09-22 2006-03-23 Vidrine William L Sand control completion having smart well capability and method for use of same
US20090211755A1 (en) * 2008-02-27 2009-08-27 Schlumberger Technology Corporation System and method for injection into a well zone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466484A (en) * 1981-06-05 1984-08-21 Syminex (Societe Anonyme) Electrical device for promoting oil recovery
US20020117301A1 (en) * 2001-02-26 2002-08-29 Womble Allen W. Single trip, multiple zone isolation, well fracturing system
US20030150622A1 (en) * 2002-02-13 2003-08-14 Patel Dinesh R. Formation isolation valve
US20060060352A1 (en) * 2004-09-22 2006-03-23 Vidrine William L Sand control completion having smart well capability and method for use of same
US20090211755A1 (en) * 2008-02-27 2009-08-27 Schlumberger Technology Corporation System and method for injection into a well zone

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WO2013042128A3 (fr) 2013-07-04

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