WO1999022114A1 - Procede et dispositif servant a fermer un puits tout en laissant le train de tiges dans le trou de forage - Google Patents

Procede et dispositif servant a fermer un puits tout en laissant le train de tiges dans le trou de forage Download PDF

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Publication number
WO1999022114A1
WO1999022114A1 PCT/US1998/022379 US9822379W WO9922114A1 WO 1999022114 A1 WO1999022114 A1 WO 1999022114A1 US 9822379 W US9822379 W US 9822379W WO 9922114 A1 WO9922114 A1 WO 9922114A1
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WO
WIPO (PCT)
Prior art keywords
packer
drill stem
valve
valve seat
drill
Prior art date
Application number
PCT/US1998/022379
Other languages
English (en)
Inventor
Jeffrey D. Baird
Original Assignee
Baird Jeffrey D
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 Baird Jeffrey D filed Critical Baird Jeffrey D
Priority to AU11952/99A priority Critical patent/AU1195299A/en
Publication of WO1999022114A1 publication Critical patent/WO1999022114A1/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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
    • E21B49/088—Well testing, e.g. testing for reservoir productivity or formation parameters combined with sampling
    • 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
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/02—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
    • 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
    • E21B33/127—Packers; Plugs with inflatable sleeve
    • 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
    • E21B33/127—Packers; Plugs with inflatable sleeve
    • E21B33/1275—Packers; Plugs with inflatable sleeve inflated by down-hole pumping means operated by a down-hole drive
    • 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
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • E21B47/017—Protecting measuring instruments
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
    • E21B49/083—Samplers adapted to be lowered into or retrieved from a landing nipple, e.g. for testing a well without removing the drill string

Definitions

  • Conventional drill stem testing requires the drill stem and the drill bit to be pulled from the borehole to the surface.
  • the borehole is then prepared for the drill stem test. Preparation includes lowering the testing equipment into the borehole, typically with the same drill stem that was used to drill the borehole.
  • the actual drill stem test includes alternately opening and shutting the valves in the testing equipment. Opening the valves allows the formation to produce fluid up into the drill pipe. Closing the valves allows fluid pressure to build inside of the formation. Fluid pressure and flow are monitored as part of the test.
  • the control of fonnation fluids reduces the danger of drilling.
  • One problem of drilling is that as the drill stem is picked up out of the hole, the crew has no idea how high the oil is inside of the drill pipe. Consequently, as they unscrew the drill pipe, oil and gas can spill out onto the rig floor. This creates fire hazards and environmental problems.
  • the drill stem is purged of all fo ⁇ nation fluids by reverse circulation, and the fo ⁇ nation fluids are safely routed to a holding area.
  • a releasable latch couples the lower sleeve to the upper sleeve.
  • the lower sleeve is capable of telescoping with respect to the upper sleeve when the latch is released.
  • the valve seat is slidable within the lower sleeve between open and closed positions. The valve seat cooperates with the latch so as to release the latch when the valve stem is in the closed position and so as to engage the latch when the valve seat is in the open position.
  • the valve seat includes a sleeve that is slidably located within the interior passage of the lower collar.
  • the valve seat has a spring that cooperates with the lower collar so that the valve seat is normally in the open position.
  • the latch comprises dogs that are coupled to the lower collar.
  • the valve seat contacts the dogs and forced the dogs to engage a recess in the upper collar when the valve seat is in the open position.
  • the valve seat allows the dogs to move radially and disengage the recess when the valve seat is in the closed position.
  • the valve seat is stractured and a ⁇ anged to latch the valve member when the valve member seats in the valve seat.
  • the valve seat can be structured and a ⁇ anged to accept a variety of valve members.
  • the valve member can be a data probe having latches therein.
  • the valve member could be a dead man or simply a ball.
  • the upper and lower sleeves are coupled together by longitudinal splines.
  • the splines allow the upper and lower sleeves to rotate in unison as well as allow the upper and lower sleeves to telescope with respect to each other.
  • the packer has spring straps that extend from a first end of the packer to a second end of the packer.
  • the straps assist in preventing overinflation of the packer as well as assist in deflating the packer.
  • the step of opening a passage through the valve member also includes manipulating the valve member by a wireline so as to open the passage.
  • the valve member is provided with instramentation.
  • the step of dropping the valve member from the surface inside of the drill stem also includes dropping the valve member on a wireline. After latching the valve member to the valve seat, the wireline is manipulated to unlatch the valve member from the valve seat and retrieving the valve member to the surface, while maintaining the packer in the inflated condition.
  • Fig. 15 shows dropping the data probe in preparation of setting the testing tool.
  • Fig. 16 shows shutting in the formation by inflation of the packer.
  • Figs. 19A, 19B, and 19C are longitudinal cross-sectional views of the testing tool.
  • Fig. 19A is the upper portion of the tool
  • Fig. 19B is the inte ⁇ nediate portion
  • Fig. 19C is the lower portion.
  • Fig. 21 is a cross-sectional view, showing the bladder in the inflated condition.
  • the present invention utilizes a probe during a drill stem test.
  • the probe is lowered inside of the drill stem by way of a wireline from the surface to seat in a nipple.
  • the nipple is in tlie drill stem near the formation of interest.
  • the probe can be released from the nipple to allow tlie fo ⁇ nation to produce fluid up into the drill stem. Once released, the probe can be retrieved to the surface.
  • the use of the probe 21 with an unconventional testing tool 201 is described below with reference to Figs. 13-24. hi addition to the probe, other valves can be used with the testing tool of Figs. 13-24.
  • One embodiment of the testing tool 201 is shown in Figs. 13-21.
  • Another embodiment of the testing tool 401 is shown in Figs. 22A-24.
  • the unconventional testing tool 201, 401 can be used in a drill stem test, to prevent blow outs and to control thief zones.
  • the data probe 21 is preferably used to conduct a drill stem test.
  • the data probe can also be used in conjunction with the testing tool 201, 401 to control blow outs and thief zones.
  • a drill stem test is conducted.
  • the test uses a drill stem 17 that extends from the surface 13 inside of the borehole 11 to the formation 15.
  • a test tool 19 Located in the borehole 11 is a test tool 19.
  • the test tool 19 remains in the borehole for the duration of the test.
  • a pressure recorder 27 is located in the drill stem.
  • the pressure recorder typically records fo ⁇ nation pressure on a chart.
  • the pressure recorder 27 is seated inside of an anchor 25 below a packer 31 and therefore remains downhole for the duration of the test. (Another pressure recorder is typically provided in a bomb carrier above the packer. This recorder also remains downhole for the duration of the test.)
  • the drill stem test includes several shut-in and flow periods. In order to retrieve the pressure recorder, the entire drill stem 17 must be pulled to the surface 13.
  • the present invention uses a data probe 21 that traverses up and down inside of the drill stem 17.
  • the data probe seats inside of a nipple 23 that is located above the fom ation 15. By seating the data probe 21 inside of the nipple 23, the well becomes shut-in.
  • the data probe 21 contains instrumentation (such as a pressure recorder) as well as a sampling chamber.
  • instrumentation such as a pressure recorder
  • the data probe is released from the nipple 23. This opens the drill stem to fluid (liquid or gas) flow from tlie formation and also allows the data probe to be retrieved to the surface.
  • the drill stem test continues unhindered while the data probe is retrieved and its recorded information and fluid sample are analyzed.
  • the drill stem test can be halted at that time. This saves time and thereby reduces the expenses of drilling. If the well shows promise, then the drill stem test can be continued, using either the data probe to shut-in the well for the second and subsequent shut-in periods, or using the conventional downhole four phase tool which is in the test tool 19.
  • the well is readied by lowering a length of drill stem 17 therein.
  • the anchor 25 is an extra heavy pipe that is perforated 29 to allow fluid from the fomiation to enter the drill stream. The perforations 29 are small enough to prevent large cuttings from entering the drill string.
  • the pressure recorder 27 for recording various parameters such as pressure and temperature.
  • the packer 31 Located above the anchor is the packer 31. Located above the packer is a safety joint (not shown) and the test tool 19.
  • the test tool 19 has a four phase tool and a hydraulic tool therein.
  • the anchor 25, the pressure recorder 27, the packer 31, and the test tool 19 are all conventional and commercially available.
  • the terms “upper”, “lower”, “above”, and “below” refer to the orientation of the equipment in a vertical borehole and shown in the drawings.
  • the equipment can be used in a horizontal borehole.
  • the probe can be pumped into place in the nipple.
  • a lower latch groove 69 Located above the packing seat 61 in the interior passage 39A is a lower latch groove 69. Located above the lower latch groove 69 is an upper latch groove 71. Each groove 69, 71 represents an increase in the diameter of the interior passage 39A of the nipple 23. The grooves 69, 71 receive the latches 57A, 57B of the data probe. Each groove extends around the entire circumference of the interior passage 39 A. The grooves 69, 71 are substantially similar to each other. The description that follows is applicable to both the lower and the upper grooves 69, 71. Referring to Fig. 7, which shows a close up cross- section of the lower groove 69 the lower end of each groove has a frusto-conical surface 73.
  • each lower toggle latch 57B the other end 131 of the upper linkage bar 123 is pivotally coupled to the lower end of the upper skirt 103 (see Fig. 7).
  • the other end 133 of the lower linkage bar 125 is pivotally coupled to either the ring 119 or the lower skirt 105.
  • the other end 133 of each of the lower linkage bars 125 is pivotally coupled the ring 119 (see Fig. 2).
  • the other end 133 of each of tl e lower linkage bars 125 is pivotally coupled to the upper end of the lower skirt 105 (see Fig. 7).
  • each latch 57 A, 57B has a roller 137 thereon.
  • the latches need not be provided with rollers. However, the roller eases the deployment of the latch into and out of the respective groove.
  • the roller 137 is interposed between the two linkage bars 123, 125.
  • each set of upper and lower latches can include less than or more than two latches.
  • the upper skirt 103 is provided with a longitudinal slot 139 (shown in dashed lines in the cross-sectional views) along a portion of its length.
  • the slot is located between the latches 57B.
  • the slot 139 receives a shear pin 141, winch pin is coupled to the traveling shaft 79.
  • the pin 141 allows limited longitudinal movement between the traveling shaft 79 and the upper skirt 103.
  • a transmitter and an electronic wireline can be provided, wherein the info ⁇ nation is telemetered to the surface while the instemperation ca ⁇ ier stays down hole.
  • pressure and temperature sensors have been described herein, other sensors can be utilized.
  • the instemperation ca ⁇ ier 59 also has a fluid reservoir 157 for retrieving a sample.
  • the roller 137 contacts the chamfered surface 77 just above the shoulder 75.
  • This also causes the lower end 133 of the lower linkage bar 125 to move downward slightly, wherein the roller 137 clears the chamfered surface 77 and contacts the shoulder 75.
  • the latch becomes fully seated as shown in Fig. 10 when continued downward force by the wireline retrieval head 101 (Fig. 3) pushes the upper end 131 of the upper linkage bar 123 down, thereby forcing the roller 137 out and against tlie wall 74 of the groove 69.
  • the latch 57B is now fully deployed and seated against the shoulder surface 75 of the groove 69.
  • the data probe 21 is partially latched to the nipple 23, as shown in Fig. 3.
  • the packing 55 is fully latched to the nipple.
  • the results from the data probe 21 show a well witli high productivity, wherein ftirther testing is deemed unnecessary. Instead of waiting for the drill stem test to mn its course, the well can be completed right then. This saves time, thereby making the well more economical to drill.
  • the results from the data probe 21 shows a well with little or no commercial productivity (such as salt water production).
  • the drill stem test can be immediately terminated and tl e zone of interest is condemned. The decision can be made to drill deeper or to plug the well. Tins saves drilling costs that would ordinarily be incurred for a worthless zone or well.
  • the inner assembly 215 includes a lower collar 237, a nipple 23A (Fig. 19A), a piston 239, and the packer 211 (Figs. 19B, 19C).
  • the inner assembly 215 is located in the interior cavity 221 of the upper collar 213.
  • the nipple 23A is substantially similar to the nipple 23 described above with respect to Fig. 2.
  • the nipple 23 A has lower and upper latch grooves 69, 71.
  • the upper and lower ends of the nipple 23 A are blunt to contact the dog flanges 249 and tlie spring 225, respectively.
  • the outside diameter of the lower end of tl e nipple has seals 267 to provide a seal between the nipple and the lower collar.
  • the outside of the lower collar 237 has splines 259 that project radially outward to cooperate with the upper collar splines (see Fig. 20).
  • tlie lower collar splines 259 are received between the upper collar splines 231.
  • the splines cause the upper and lower collars 213, 237 to rotate in unison, while allowing the lower collar 237 to slide longitudinally within the upper collar 213.
  • the gaps between tlie lower and upper collar splines 259, 231 are unifo ⁇ n, with the exception of one gap 260.
  • This gap 260 is wider than the other gaps so as to avoid transmitting rotational force across the gap during drilling.
  • the gap contains a portion of a relief valve 289 winch will be described below.
  • the gap is formed by a spline 259A in the lower collar. The widened gap extends for the entire length of the spline.
  • An inside passage 291 is formed through the inside of the nipple 23 A and the lower collar 237.
  • the inside passage 291 allows for mud flow during drilling and fo ⁇ nation fluid flow during production.
  • the inside passage 291 is closed or sealed when the data probe 21 is seated and latched into the nipple 23 A. (In Fig. 19A, the data probe 21 is shown schematically.)
  • the flow of fonnation fluid upwardly is prevented by the seals 55 on the data probe and also by the seals 273 in tlie flange 235.
  • the flow of fluid downwardly is prevented by the seals 55 on the data probe and also by the piston seals 271.
  • the data probe 21 is dropped down to latch in the nipple 23A, as discussed above with respect to Figs. 1-12. Gas pressure is maintained inside the drill stem.
  • a seal is formed in the inside passage 291 of the testing tool 201.
  • the pressure of the compressed gas inside of the drill stem is increased so as to exert downward pressure on the data probe.
  • the data probe and tlie nipple are pushed down inside of the lower collar 237. The operator observes pressure readings and also travel of the wireline to determine when the tool 201 has been set.
  • the sliding nipple 23 A compresses the spring 255.
  • the testing tool 201 is readied for either drilling or for pulling from the borehole.
  • the testing tool is disengaged from the borehole by deflating the bladder 211.
  • the drill stem 17A is rotated (see Fig. 18).
  • the rotation of the drill stem 17A opens the valve 289 (Figs. 19A and 20), wherein oil from the packer 211 exits through the second fluid passage 287 and into the reservoir 265.
  • Tlie oil travels through the second fluid passage 287 first in an upward direction from the packer to the valve 289, and then downward from the valve to the reservoir 265.
  • a dump chamber can be provided above the piston, which dump chamber receives the oil from the second passage.
  • a oneway valve connects the dump chamber to the reservoir 265 so as to allow oil to flow from the dump chamber to the reservoir.
  • the nipple 419 is longitudinally slidable within the lower collar 415.
  • the nipple 419 is substantially similar to the nipple 23 of Fig. 2, wherein the data probe 21 can seat and latch therein.
  • the nipple 419 has an upper sleeve 425 that extends up into the upper end of the upper collar 409 (see Figs. 22A, 22B). Seals 427 are provided between the upper sleeve 425 and the upper collar 409 at a location that is above the dogs 429.
  • the nipple 419 also has a lower sleeve 430 that extends down past the spring 431 (see Fig. 22B). The spring 431 pushes the nipple up.
  • the piston 451 is annular, fitting inside of the annular cavity. Seals 457 are provided between the piston 451 and the packer mandrel 417 and between the piston 451 and the oil chamber housing 413.
  • the piston 451 is coupled to the packer mandrel 417 by a piston lock ring 459 and a snap ring 461. Thus, the piston 451 moves longitudinally up and down in unison with the packer mandrel 417.
  • the upper and lower packer heads are annular in shape.
  • the upper and lower packer heads each have a flange 471 that extends longitudinally and also circumferentially around the packer mandrel.
  • the flange 471 of the upper packer head 467 extends toward the lower packer head 469, while the flange of the lower packer head extends toward the upper packer head.
  • the flanges are annular and are spaced from the packer mandrel by a gap.
  • the packer 424 or bladder, is a sheath of elastomeric material that extends between the upper and lower packer heads 467, 469.
  • the packer is fonned of sheets wrapped around the mandrel.
  • the upper and lower ends of the packer 424 are coupled to the upper and lower packer heads 467, 469 respectively.
  • the outside diameter of the umnflated packer 424 is slightly less than the outside diameter of the outer assembly 403. Tins protects the packer somewhat from excessive wear against the borehole wall.
  • the return passage 495 allows oil to flow to the dump chamber 455 above the piston (see Fig. 22C).
  • the oil is returned to the oil chamber 453 by a passage 511 extending tlirough the piston 451.
  • the passage 511 has a one way valve 513 therein. Fluid can flow from the dump chamber 455 into the oil chamber 453 but not from the oil chamber into the dump chamber.
  • the one way valve 513 has a ball 515 and a spring 517 that pushes the ball valve closed.
  • the inside of the drill string is cleared of mud using compressed gas. Then, the data probe 21 is dropped down inside of the drill string. It seats and latches inside of the nipple 419. This seals the inside of the drill string.
  • the data probe 21 can be released and retrieved by manipulating the wireline 53.
  • the wireline is picked up to open the bypass inside of the data probe 21. Pressure equalizes above and below the data probe.
  • the wireline is picked up again to release the data probe from the nipple and to retrieve the data probe to the surface.
  • a compressed gas cushion can be maintained inside of the drill stem on the formation during the retrieval of the data probe.
  • An operator checks the oil in the oil chamber 453.
  • the upper and lower ports 485 are opened by removing the plugs 447 to access the oil chamber.
  • Oil is pumped into the oil chamber via the lower port 445.
  • the operator observes the oil flowing out of the upper port 443.
  • the operator is looking for air or mud in tlie oil discharge. The presence of either air, or mud, or both, would indicate a damaged seal around the oil chamber 453. If the oil flowing out of the oil chamber is clean, then the oil chamber is fine and the plugs 447 are replaced.

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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)
  • Geophysics (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

Un train de tiges (17) possède un outil d'essai (19) et un trépan (203). Quand on perce le trou de forage, on met le train de tiges (17) en rotation et on applique un poids au trépan (203) depuis la surface (13). Si on désire effectuer un essai sur la formation (15), on laisse le train de tiges (17) dans le trou de forage (11). On purge le train de tiges (17) de la boue (205) au moyen de gaz comprimé (210). L'outil d'essai (19) possède des colliers supérieur (213) et inférieur (237). Le collier inférieur (237) comporte un siège de clapet (61). On fait descendre depuis la surface (13) un clapet (21) vers l'intérieur du train de tiges (17) afin qu'il vienne s'appuyer dans le siège de clapet (61). Quand ce clapet (21) est en place, on déverrouille le collier inférieur (27) du collier supérieur (213) et un piston (239) introduit du liquide (283) dans un packer gonflable (211) afin de positionner ce dernier. Quand le puits est fermé au moyen du joint créé par le packer, on peut déclencher l'essai aux tiges. On peut descendre le clapet (21) sur un câble (53) et on peut soit l'enlever du siège (61), soit le placer sur le siège (61), ce qui permet d'alterner les périodes de fermeture et d'écoulement afin d'effectuer l'essai aux tiges. On peut, de plus, utiliser l'outil d'essai (19) en combinaison avec une réduction de tiges en circulation (202) possédant une clapet de dérivation (567) activé par un dispositif automatique d'homme mort (577). On peut mettre en oeuvre l'outil d'essai (19) et la réduction de tiges en circulation (202) afin de contrôler les éruptions subites et les sables de capture.
PCT/US1998/022379 1997-10-24 1998-10-22 Procede et dispositif servant a fermer un puits tout en laissant le train de tiges dans le trou de forage WO1999022114A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU11952/99A AU1195299A (en) 1997-10-24 1998-10-22 Method and apparatus for shutting in a well while leaving drill stem in the borehole

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6309497P 1997-10-24 1997-10-24
US60/063,094 1997-10-24

Publications (1)

Publication Number Publication Date
WO1999022114A1 true WO1999022114A1 (fr) 1999-05-06

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006086A1 (fr) * 1999-07-15 2001-01-25 Andrew Philip Churchill Robinet de derivation de fond de trou
WO2002035054A1 (fr) * 2000-10-26 2002-05-02 Halliburton Energy Services, Inc Procede et appareil d'essai in-situ de puits de production
US6530428B1 (en) 2000-10-26 2003-03-11 Halliburton Energy Services, Inc. Method and apparatus for in-situ production well testing
WO2004022906A1 (fr) * 2002-09-03 2004-03-18 Paul Bernard Lee Valve de derivation a gros calibre commandee par clapet
GB2443954A (en) * 2006-11-16 2008-05-21 Tracto Technik Geothermal probe with drill head.
CN101915092A (zh) * 2010-07-05 2010-12-15 陕西省煤炭地质测量技术中心 空气压缩机抽水试验用气水混合器
WO2011160193A1 (fr) * 2010-06-22 2011-12-29 Inflatable Packers International Pty Ltd Garniture d'étanchéité gonflable et soupape de commande
WO2017127885A1 (fr) * 2016-01-27 2017-08-03 Imdex Global B.V. Procédé et système permettant l'acquisition de données d'évaluation de trou de forage et de données d'orientation de carotte

Citations (3)

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US4083401A (en) * 1977-05-27 1978-04-11 Gearhart-Owen Industries, Inc. Apparatus and methods for testing earth formations
US4424860A (en) * 1981-05-26 1984-01-10 Schlumberger Technology Corporation Deflate-equalizing valve apparatus for inflatable packer formation tester
US5799733A (en) * 1995-12-26 1998-09-01 Halliburton Energy Services, Inc. Early evaluation system with pump and method of servicing a well

Patent Citations (3)

* Cited by examiner, † Cited by third party
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WO2001006086A1 (fr) * 1999-07-15 2001-01-25 Andrew Philip Churchill Robinet de derivation de fond de trou
US6820697B1 (en) 1999-07-15 2004-11-23 Andrew Philip Churchill Downhole bypass valve
GB2387404A (en) * 2000-10-26 2003-10-15 Halliburton Energy Serv Inc Method and apparatus for in-situ production well testing
US6530428B1 (en) 2000-10-26 2003-03-11 Halliburton Energy Services, Inc. Method and apparatus for in-situ production well testing
GB2387404B (en) * 2000-10-26 2004-06-09 Halliburton Energy Serv Inc Method and apparatus for in-situ production well testing
WO2002035054A1 (fr) * 2000-10-26 2002-05-02 Halliburton Energy Services, Inc Procede et appareil d'essai in-situ de puits de production
WO2004022906A1 (fr) * 2002-09-03 2004-03-18 Paul Bernard Lee Valve de derivation a gros calibre commandee par clapet
US7347289B2 (en) 2002-09-03 2008-03-25 Paul Bernard Lee Dart-operated big bore by-pass valve
GB2443954A (en) * 2006-11-16 2008-05-21 Tracto Technik Geothermal probe with drill head.
GB2443954B (en) * 2006-11-16 2010-02-03 Tracto Technik Method and apparatus for introducing a geothermal probe into the earth
US8020636B2 (en) 2006-11-16 2011-09-20 Tracto-Technik Gmbh & Co. Kg Method and apparatus for introducing a geothermal probe into the earth
WO2011160193A1 (fr) * 2010-06-22 2011-12-29 Inflatable Packers International Pty Ltd Garniture d'étanchéité gonflable et soupape de commande
GB2495259A (en) * 2010-06-22 2013-04-03 Inflatable Packers Internat Pty Ltd Inflatable packer and control valve
CN101915092A (zh) * 2010-07-05 2010-12-15 陕西省煤炭地质测量技术中心 空气压缩机抽水试验用气水混合器
WO2017127885A1 (fr) * 2016-01-27 2017-08-03 Imdex Global B.V. Procédé et système permettant l'acquisition de données d'évaluation de trou de forage et de données d'orientation de carotte

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