EP0500877A1 - Verfahren zum durchführen eines bohrvorganges. - Google Patents
Verfahren zum durchführen eines bohrvorganges.Info
- Publication number
- EP0500877A1 EP0500877A1 EP91916050A EP91916050A EP0500877A1 EP 0500877 A1 EP0500877 A1 EP 0500877A1 EP 91916050 A EP91916050 A EP 91916050A EP 91916050 A EP91916050 A EP 91916050A EP 0500877 A1 EP0500877 A1 EP 0500877A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- period
- torque
- variation
- drill
- pct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 claims description 6
- 238000011160 research Methods 0.000 claims description 2
- 238000012795 verification Methods 0.000 claims description 2
- 239000003129 oil well Substances 0.000 abstract description 2
- 230000000737 periodic effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
- 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
-
- 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
- E21B44/005—Below-ground automatic control systems
Definitions
- the present invention relates to a method of conducting a borehole.
- the drill string motor which is mounted to the surface, rotates at a constant speed of about 50-150 rpm.
- the friction produced between the drilling tool and the bottom of the well, or between the rods and the wall of the well can cause slowing down or even periodic stops of the tool.
- the motor continues to rotate at one end of the drill string, the latter tends to twist around its longitudinal axis until the force exerted is greater than the friction effect braking the tool.
- the drill string relaxes and the tool starts to rotate again, reaching peak rotational speeds of the order of 150 to 400 revolutions / minute.
- contact between the lining and the wall of the well occurs quite frequently.
- the behavior of the tool has a significant effect on the progress of the drilling.
- the master driller be warned of the periodic instabilities of the tool's rotation speed so that he can modify the drilling parameters - engine rotation speed, weight applied to the tool or the mud flow rate - and thus ensure optimal drilling.
- the present invention therefore relates to a method of conducting a borehole which makes it possible to provide a user, in a simple manner, with data on the state of rotation of the rod.
- the invention proposes a method for conducting a borehole during which a tool is rotated in a well by a drill rod, the method comprising the following steps:
- FIG. 1 is a schematic sectional view of a drilling assembly
- - Figure 2 is a flow diagram of certain steps of the method of the invention.
- - Figures 3A, 3B and 4 each show pairs of torque and speed curves.
- a drilling assembly comprises a mast 10 provided, in a manner known per se, with a hook 12 to which is suspended a drill string, generally represented at 14.
- the drill string 14 comprises a drilling tool 16, drill rods 18 and drill rods 20 forming an assembly called a drill string.
- the drill string 14 is rotated by a rotation table 22. Any other device can be used.
- the rotation table 22 is provided with a rotation speed sensor 24 and a torque sensor 26 applied to the drill string 14.
- a result of less than 10% implies a small variation in torque which makes it possible to deduce therefrom that there is no instability in the speed of rotation of the lining.
- the method makes it possible to signal to the master driller that he can maintain the drilling parameters.
- the next step of the process is carried out in which the period P of the variation in the torque is calculated. Then we are led to check if this period P is constant for a predetermined number of cycles.
- the theoretical period P ⁇ . h is a characteristic of the packing used. It is calculated from the natural modes of vibration in torsion of the lining. As there are several eigen modes of vibration, it follows that there are several values for P th that we can call ' p th2' We therefore carry out a comparison of the current P value with each of the predetermined theoretical values to see if the P value is in a range between 0.8 and 1.2 times the value of one of the theoretical values Pt '
- the system allows this fact to be reported to the master driller so that he can act and modify one or more drilling parameters.
- the value P is not within such a range there is uncertainty regarding the behavior of the drill string.
- the system allows this uncertain situation to be reported to the master driller so that he can modify the drilling parameters if necessary.
- This step has two parts: calculating the percentage of tool downtime and calculating the maximum tool rotation speed.
- the percentage of tool downtime% t a r is defined by the formula
- the recovery time time during which the engine runs and the tool stopped, is the time necessary for the engine to overcome friction between the lining and the well.
- DN is the number of turns of packing necessary to overcome friction.
- V jjjQy is the average speed of rotation of the tool.
- the present invention makes it possible to signal to the master-driller, in a simple manner, the presence or absence of rotational speed instabilities.
- a set of indicators analogous to conventional lights intended to regulate road traffic, is used.
- Any other signaling means for example auditory or graphic, can be used.
- a green light indicates to the master driller that he can maintain the parameters of the drilling, an orange light leaves him the choice to modify the parameters, taking into account the uncertain diagnosis, and the red light indicates to him that we must act actively.
- FIGS. 3A and 3B are two pairs of curves, at a different time scale, of the variation of the torque C and of the speed of rotation of the tool VR over time.
- the measurements were carried out by a recording device placed at the bottom of the well. These measurements make it possible to visualize the relationship between the torque and the speed of rotation and to confirm that this relationship corresponds to the hypotheses on which the method according to the present invention is based.
- Figure 4 shows in more detail the variation of the torque and the rotation speed.
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Earth Drilling (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Drilling And Boring (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Geophysics And Detection Of Objects (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Bipolar Transistors (AREA)
- Conductive Materials (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Drilling Tools (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9011380 | 1990-09-14 | ||
FR9011380A FR2666845B1 (fr) | 1990-09-14 | 1990-09-14 | Procede de conduite d'un forage. |
PCT/FR1991/000721 WO1992005337A1 (fr) | 1990-09-14 | 1991-09-12 | Procede de conduite d'un forage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0500877A1 true EP0500877A1 (de) | 1992-09-02 |
EP0500877B1 EP0500877B1 (de) | 1995-02-15 |
Family
ID=9400335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91916050A Expired - Lifetime EP0500877B1 (de) | 1990-09-14 | 1991-09-12 | Verfahren zum durchführen eines bohrvorganges |
Country Status (11)
Country | Link |
---|---|
US (1) | US5245871A (de) |
EP (1) | EP0500877B1 (de) |
AT (1) | ATE118596T1 (de) |
CA (1) | CA2072138C (de) |
DE (1) | DE69107441T2 (de) |
DK (1) | DK0500877T3 (de) |
ES (1) | ES2071329T3 (de) |
FR (1) | FR2666845B1 (de) |
NO (1) | NO308427B1 (de) |
OA (1) | OA09981A (de) |
WO (1) | WO1992005337A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5679894A (en) * | 1993-05-12 | 1997-10-21 | Baker Hughes Incorporated | Apparatus and method for drilling boreholes |
FR2705801B1 (fr) * | 1993-05-26 | 1995-07-28 | Elf Aquitaine | Procédé de contrôle de la vitesse de rotation d'une garniture de forage. |
US5431046A (en) * | 1994-02-14 | 1995-07-11 | Ho; Hwa-Shan | Compliance-based torque and drag monitoring system and method |
US5864058A (en) * | 1994-09-23 | 1999-01-26 | Baroid Technology, Inc. | Detecting and reducing bit whirl |
FR2732403B1 (fr) * | 1995-03-31 | 1997-05-09 | Inst Francais Du Petrole | Methode et systeme de prediction de l'apparition d'un dysfonctionnement en cours de forage |
FR2750159B1 (fr) * | 1996-06-24 | 1998-08-07 | Inst Francais Du Petrole | Methode et systeme d'estimation en temps reel d'au moins un parametre lie au comportement d'un outil de fond de puits |
FR2750160B1 (fr) * | 1996-06-24 | 1998-08-07 | Inst Francais Du Petrole | Methode et systeme d'estimation en temps reel d'au moins un parametre lie au deplacement d'un outil de forage |
GB9824248D0 (en) | 1998-11-06 | 1998-12-30 | Camco Int Uk Ltd | Methods and apparatus for detecting torsional vibration in a downhole assembly |
FR2792363B1 (fr) | 1999-04-19 | 2001-06-01 | Inst Francais Du Petrole | Methode et systeme de detection du deplacement longitudinal d'un outil de forage |
US9745799B2 (en) | 2001-08-19 | 2017-08-29 | Smart Drilling And Completion, Inc. | Mud motor assembly |
US9051781B2 (en) | 2009-08-13 | 2015-06-09 | Smart Drilling And Completion, Inc. | Mud motor assembly |
EA009115B1 (ru) * | 2002-04-19 | 2007-10-26 | Марк У. Хатчинсон | Способ определения нарушения нормального хода бурения |
US7114578B2 (en) * | 2002-04-19 | 2006-10-03 | Hutchinson Mark W | Method and apparatus for determining drill string movement mode |
GB0211836D0 (en) * | 2002-05-23 | 2002-07-03 | Curvaceous Software Ltd | Multi-variable processes |
SE535585C2 (sv) * | 2010-09-20 | 2012-10-02 | Spc Technology Ab | Förfarande och anordning för slagverkande sänkhålsborrning |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2775889A (en) * | 1951-03-19 | 1957-01-01 | Martin Decker Corp | Torque determining method |
US2691300A (en) * | 1951-12-17 | 1954-10-12 | Phillips Petroleum Co | Torque computer |
US2810546A (en) * | 1952-03-25 | 1957-10-22 | Physics Corp | Drill tool telemetering systems |
US3605919A (en) * | 1969-05-16 | 1971-09-20 | Automatic Drilling Mach | Drilling rig control |
US3593807A (en) * | 1969-12-11 | 1971-07-20 | Frank J Klima | Drilling apparatus |
USRE28436E (en) * | 1970-12-28 | 1975-06-03 | Method op determining downhole occurences in well drilling using rotary torque oscillation measurements | |
US3703096A (en) * | 1970-12-28 | 1972-11-21 | Chevron Res | Method of determining downhole occurrences in well drilling using rotary torque oscillation measurements |
US3788136A (en) * | 1972-08-11 | 1974-01-29 | Texaco Inc | Method and apparatuses for transmission of data from the bottom of a drill string during drilling of a well |
US3837223A (en) * | 1972-09-20 | 1974-09-24 | Texaco Inc | Method and apparatuses for transmitting data up a drill string |
US4250758A (en) * | 1978-12-22 | 1981-02-17 | Texaco Inc. | Combination for use in a rotary drilling system with torque meter |
US4285236A (en) * | 1979-11-23 | 1981-08-25 | Dresser Industries, Inc. | Rotary torque and rpm indicator for oil well drilling rigs |
GB2179736B (en) * | 1985-08-30 | 1989-10-18 | Prad Res & Dev Nv | Method of analyzing vibrations from a drilling bit in a borehole |
GB2217012B (en) * | 1988-04-05 | 1992-03-25 | Forex Neptune Sa | Method of determining drill bit wear |
GB2228326B (en) * | 1988-12-03 | 1993-02-24 | Anadrill Int Sa | Method for determining the instantaneous rotation speed of a drill string |
GB8916459D0 (en) * | 1989-07-19 | 1989-09-06 | Forex Neptune Serv Tech Sa | Method of monitoring the drilling of a borehole |
-
1990
- 1990-09-14 FR FR9011380A patent/FR2666845B1/fr not_active Expired - Lifetime
-
1991
- 1991-09-12 CA CA002072138A patent/CA2072138C/fr not_active Expired - Lifetime
- 1991-09-12 ES ES91916050T patent/ES2071329T3/es not_active Expired - Lifetime
- 1991-09-12 AT AT91916050T patent/ATE118596T1/de active
- 1991-09-12 DE DE69107441T patent/DE69107441T2/de not_active Expired - Fee Related
- 1991-09-12 EP EP91916050A patent/EP0500877B1/de not_active Expired - Lifetime
- 1991-09-12 WO PCT/FR1991/000721 patent/WO1992005337A1/fr active IP Right Grant
- 1991-09-12 DK DK91916050.7T patent/DK0500877T3/da active
- 1991-09-12 US US07/856,961 patent/US5245871A/en not_active Expired - Lifetime
-
1992
- 1992-05-14 NO NO921901A patent/NO308427B1/no not_active IP Right Cessation
- 1992-05-27 OA OA60220A patent/OA09981A/fr unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9205337A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2666845A1 (fr) | 1992-03-20 |
WO1992005337A1 (fr) | 1992-04-02 |
NO921901L (no) | 1992-05-29 |
NO308427B1 (no) | 2000-09-11 |
ATE118596T1 (de) | 1995-03-15 |
EP0500877B1 (de) | 1995-02-15 |
CA2072138C (fr) | 1997-11-18 |
DE69107441T2 (de) | 1995-12-14 |
ES2071329T3 (es) | 1995-06-16 |
OA09981A (fr) | 1996-03-29 |
DK0500877T3 (da) | 1995-07-17 |
FR2666845B1 (fr) | 1997-01-10 |
CA2072138A1 (fr) | 1992-03-15 |
DE69107441D1 (de) | 1995-03-23 |
NO921901D0 (no) | 1992-05-14 |
US5245871A (en) | 1993-09-21 |
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