WO2003106806A1 - Dispositif et procede pour forer et terminer un puits horizontal - Google Patents

Dispositif et procede pour forer et terminer un puits horizontal Download PDF

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Publication number
WO2003106806A1
WO2003106806A1 PCT/CN2002/000770 CN0200770W WO03106806A1 WO 2003106806 A1 WO2003106806 A1 WO 2003106806A1 CN 0200770 W CN0200770 W CN 0200770W WO 03106806 A1 WO03106806 A1 WO 03106806A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide
drill
drilling
follow
screen
Prior art date
Application number
PCT/CN2002/000770
Other languages
English (en)
Chinese (zh)
Inventor
Xi Cao
Chaochun Zhang
Chaoxu Zhang
Original Assignee
Panjin Www Developing Science And Technology Company Limited
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 Panjin Www Developing Science And Technology Company Limited filed Critical Panjin Www Developing Science And Technology Company Limited
Priority to AU2002344529A priority Critical patent/AU2002344529A1/en
Publication of WO2003106806A1 publication Critical patent/WO2003106806A1/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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • 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
    • E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock

Definitions

  • the present invention relates to the technology of oil production drilling and completion, in particular to a drilling process for horizontal drilling in oil fields and its dedicated supporting drilling tools. Background technique
  • the purpose of the present invention is to design a new process for the defects of the horizontal drilling process described above, and develop a set of special tools to achieve single-layer multi-wellbore and multi-layer multi-wellbore, and be suitable for a variety of wellbore conditions and reservoirs.
  • the type of oil recovery achieves the ultimate goal of multiplying the recovery factor and reducing the cost of drilling, and solves the problem that the well cannot be screened and completed.
  • Ultra-short-radius radial horizontal drilling, completion tools and processes for oil extraction are composed of various parts such as a bore gauge, a forging and milling cutter, a drill bit body, a quick joint, and an adjusting sub-joint, which are characterized by:
  • the positioning drill bit is composed of guide block, shaft, collar, seal ring, bearing, sleeve, inner sleeve, 0 ring, water guide joint, inclined iron and drill bit.
  • the guide follow-up screen is fixed by welding.
  • There is a drill jacket, and an alloy blade is fixed on the drill by welding;
  • the high-strength flexible drill pipe is composed of a displacement rod sphere, a protective sleeve, an upper half cavity sphere, a seal ring, a steel ball, a lower half cavity sphere and bearings.
  • the spheres can be connected by welding or can be used. It is connected with a wire buckle protective sleeve.
  • the upper half cavity sphere, the lower half cavity sphere and the displacement rod sphere are sealed by a rubber tube, or by a rubber ring.
  • Each ball can be bent between 4 ° ⁇ 6 °, and can be 360 °. Rotate within range;
  • the guide follow-up screen consists of a connecting steel plate, a trapezoidal tube, an anti-swarf hole, an anti-snap core, an adjustment short joint, a nodal hoop and a sand control screen.
  • the guide follow-up screen is provided with an angle limiting piece;
  • the flexible drill pipe is connected to the drill bit through the sieve through the sieve pipe, and the decoupling can be used to guide the slideway and the self-locking barbed hook structure to make a quick joint structure;
  • the positioning and tilting guide is composed of the pipe wall, the fishing joint, and the piston.
  • the front of the pipe wall needs to be inclined according to the horizontal drilling angle, and the rear is semi-circular.
  • B. Ultra-short radius radial horizontal drilling and completion process a) First, forging and milling of the oil well casing with the forging and milling tools at the target layer, and then the positioning and oblique guides are connected to the guide and follow the screen, and the flexibility is The drill pipe is lowered into the guide and follow-up sieve tube.
  • a directional drill 18 is installed at the front end of the guide and follow-up sieve tube.
  • the rear part of the flexible drill pipe is connected with the conventional drill pipe and is lowered to the forging section of the target layer.
  • the positioning pin When the positioning pin enters the forging and milling section, it can be automatically ejected and hung on the edge of the casing of the oil well.
  • the tensioning slip is under the action of the piston, so that the positioning deflection guide is stably fixed in the casing of the oil well; when the drilling starts At that time, you should use a drill to drill.
  • you reach the target floor release the drill completely, follow the screen pipe along the slope of the pipe wall on the upper part of the positioning guide, and use the forward force of the drill bit and the gravity of the screen pipe itself. Advance so that horizontal drilling can be carried out according to design requirements;
  • the advantage of the invention is that the construction process is simple, and all construction operations can be basically completed by using conventional drilling equipment, without the need to equip more special equipment and tools on the ground, which reduces the overall drilling cost.
  • the radius of curvature of the inclined section is only 1.5 ⁇ 3 meters, which is suitable for various wellbore conditions and reservoir types. Especially, it is not limited by the depth of the well. It can operate in multiple layers and multiple holes in the same layer and has a large aperture.
  • the horizontal wellbore is long, and the recovery factor can be significantly improved. Because the drill bit and the steering follow-up screen are left in the horizontal well when the horizontal well drilling operation is completed, horizontal drilling and completion engineering can be completed at the same time, which solves the past problem. A major problem for horizontal wells that cannot be screened and completed. In addition, single wellbore flushing and sand washing operations can be performed during oil production. BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic structural diagram of a drill body according to the present invention, where A is a cross-sectional view;
  • FIG. 2 is a cross-sectional view taken along A-A of FIG. 1 of the present invention, and B is a cross-sectional view;
  • Figure 3 is a sectional view taken along the line B-B of Figure 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a flexible drill pipe according to the present invention, where C represents a projecting direction;
  • Figure 3 is the present invention.
  • FIG. 6 is a structural diagram of a follow-up sieve tube according to the present invention, where I represents an enlarged part, and D represents a viewing direction;
  • FIG. 7 is a structural diagram of the natural state of FIG. 6 of the present invention, where E represents a projection orientation; 8 is an enlarged view of a part I in FIG. 6 according to the present invention;
  • FIG. 9 is a view of a portion E of a connection steel plate of the follow-up sieve tube of FIG. 7 according to the present invention.
  • FIG. 10 is a view in the D direction of FIG. 6 according to the present invention.
  • FIG. 11 is an axial view of the tooth engaging claw 40 of the present invention.
  • FIG. 12 is a front view of FIG. 11 of the present invention.
  • FIG. 13 is an axial view of the tooth engaging claw 41 of the present invention.
  • Fig. 14 is a front view of Fig. 13 of the present invention.
  • FIG. 16 is a front view of FIG. 15 of the present invention.
  • FIG. 17 is an axial view of another quick joint structure 45 of the present invention.
  • FIG. 18 is a front view of FIG. 17 of the present invention.
  • FIG. 19 is a schematic diagram of an assembly structure of a horizontal drilling tool according to the present invention.
  • 20 is a structural diagram of another connection mode of the horizontal drilling tool of the present invention.
  • FIG. 21 is a schematic structural diagram of an adjusting sub-section of the present invention.
  • Fig. 22 is an axial view of the kickback core 32 of Fig. 21 according to the present invention.
  • FIG. 23 is a cross-sectional view of the kickback core 32 of FIG. 21 according to the present invention.
  • FIG. 24 is a front view of the inner elevator 47 of FIG. 21 according to the present invention.
  • FIG. 25 is an axial view of the inner elevator 47 of FIG. 21 according to the present invention.
  • FIG. 26 is a schematic structural view of a positioning and oblique guide according to the present invention, and F is a cross-sectional part; FIG.
  • Figure 27 is a sectional view of the wall of the semicircular pipe at the rear of the positioning guide of Figure 26 of the present invention.
  • Fig. 28 is a sectional view of the wall of the oblique pipe of the positioning oblique guide of the invention according to Fig. 26;
  • Fig. 29 is a sectional view taken along F-: F of Fig. 26 of the present invention. detailed description
  • the drill and drill body As shown in Figures 1, 2, and 3, guide block 5, shaft 6, collar 7, seal 8, bearing 9 and 13, outer sleeve 10, inner sleeve 11, 0-ring 15, water guide 16, oblique
  • the iron 17 and the drill bit 18 are assembled as a whole, and the drill jacket 10 should be welded and fixed at the front end of the guide follow-up screen tube 1; 2.
  • the high-strength flexible drill pipe As shown in Figures 4 and 5, the flexible drill pipe is composed of a combination of displacement ball 21, protective sleeve 22, upper half cavity ball 23, seal ring 24, steel ball 25, lower half cavity ball 26, and bearing 27.
  • the spheres are connected by welding, or they can be connected by wire buckle protective sleeves.
  • the upper half cavity sphere, the lower half cavity sphere and the displacement rod sphere are sealed by a rubber tube, or they can be sealed by a rubber ring. Each ball can be bent. 4 ° ⁇ 6, and can rotate within 360 °;
  • the guide follow-up sieve tube consists of a connecting steel plate 29, a trapezoidal tube 30, an anti-dust hole 31, an anti-snap core 32, an adjustment short 33, a nodal hoop 34, and an angle limit. Bit pieces 36 and sand control screen 35 are assembled;
  • the flexible drill rod and the head are assembled together by aligning the engaging teeth 40 of the front end of the flexible drill pipe and the engaging teeth 41 of the rear of the drill 18 in the sieve tube;
  • the deflection guide As shown in Figs. 26 and 29, it is composed of the pipe wall 48, the fishing joint 49, and the piston 51.
  • the front part of the pipe wall 48 is based on the drilling angle of the horizontal well. It is made into a slope shape, the rear part is semi-circular, and the positioning pin 54 is provided with a spring sleeve 55.
  • Step 1 First use forging and milling tools to perform forging and milling of the oil production shaft casing at the target layer.
  • the length is 1.1 ⁇ 1.5m. After completion, the used forging and milling tools are proposed from the shaft casing;
  • Step 2 install the positioning whipstock on the drill bit and the drill body, and then connect the flexible drill rod to the drill bit 18 through the tooth claws 40 and 41.
  • the flexible drill rod is installed in the guide and follow-up screen tube.
  • the flexible drill rod The back centering adjustment sub-link is connected with the conventional drill pipe, and the positioning follow-up guide is installed at the front of the guide and follow-up screen. After the complete set of tools is assembled on the ground, it can be drilled down the well;
  • the positioning pin 54 of the positioning deflection guide will automatically pop up when the hole diameter is increased, and hang on the upper edge of the forging and milling part of the oil well mantle. Then, when the piston 51 increases in weight and slides down, the tension slips 53 are squeezed out and are tightly clamped on the inner wall of the well casing, so that the positioning and tilting guide is accurately and stably fixed according to the design requirements;
  • the guide and follow-up screen is shaped with the special structure of the positioning starter pipe wall 48 when drilling, using only a half Bevel on round tube wall And its own weight, the directional oblique drilling of the drill bit can be completed;
  • Step 5 After the completion of the guide forging, increase the weight of the drill, the drill bit will pull the guide to follow the screen, and start the horizontal drilling. During the horizontal drilling process, the guide block 5 provided on the drill body will guide the follow-up. The angle limiting pieces 36 provided on the screen tube ensure the accurate orientation of the horizontal drilling of the drill bit;
  • step 6 when the horizontal drilling meets the design requirements, the guide and the automatic hanger behind the difficult-to-screen pipe are automatically hung at the same time, and all the drilling fluid in the well is washed with vaporized water, and the tooth-claw 40 and 41 automatic decoupling devices are used.
  • the flexible drill pipe is proposed, it is easy to leave the drill bit 18 and the guide follow-up screen in the horizontal well, resulting in the horizontal drilling and completion operations being completed at one time.
  • connection structure between the self-decoupling positioning drill bit 18 and the flexible drill pipe can also be designed as the structure of the quick joints 44 and 45.
  • the self-locking barbs 38 and the decoupling guide to the slideway 38 ' can also be easily used. Automatically disengage the drill bit and flexible drill rod. .

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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)

Abstract

L'invention concerne un dispositif et un procédé pour forer et terminer un puits horizontal. Le dispositif comprend une jauge de grosseur à déplacement, une fraise, un trépan, un raccord encliquetable, une tige de forage flexible, un tube-filtre spiralé et un trépan-déviateur. Le tube-filtre est fixé à un manchon extérieur installé à l'extérieur du trépan. La tige de forage flexible s'étend à travers le tube spiralé et est reliée au trépan au moyen du raccord à encliquetage afin de produire une force de rotation destinée au trépan. Le trépan-déviateur est raccordé à l'extrémité du tube-filtre pour faciliter le mouvement de l'outil de forage, de la tige flexible et du tube-filtre selon l'angle particulier par rapport au puits. Le procédé consiste à découper le cuvelage du puits, à positionner le trépan-déviateur au niveau de la partie découpée du cuvelage, à forer selon un sens angulaire à l'aide de l'outil de forage et de la tige de forage flexible, à extraire la tige de forage flexible du puits et à laisser l'outil de forage ainsi que le tube-filtre dans le fond du puits. L'opération de forage et d'achèvement peut être exécutée en un seul voyage.
PCT/CN2002/000770 2002-06-14 2002-10-30 Dispositif et procede pour forer et terminer un puits horizontal WO2003106806A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002344529A AU2002344529A1 (en) 2002-06-14 2002-10-30 A device and a method for drilling and completing a horizontal wellbore

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN02109848.4 2002-06-14
CN 02109848 CN1464170A (zh) 2002-06-14 2002-06-14 石油开采超短半径径向水平钻井、完井工具及其工艺

Publications (1)

Publication Number Publication Date
WO2003106806A1 true WO2003106806A1 (fr) 2003-12-24

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PCT/CN2002/000770 WO2003106806A1 (fr) 2002-06-14 2002-10-30 Dispositif et procede pour forer et terminer un puits horizontal

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CN (1) CN1464170A (fr)
AU (1) AU2002344529A1 (fr)
WO (1) WO2003106806A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2443954A (en) * 2006-11-16 2008-05-21 Tracto Technik Geothermal probe with drill head.
CN109681152A (zh) * 2018-12-11 2019-04-26 河南工程学院 一种突出煤层护孔装置及其筛管下放方法

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CN101158271B (zh) * 2007-11-19 2012-07-04 大庆油田有限责任公司 油水井油层定点深穿透水平钻孔装置
CN101832105A (zh) * 2010-04-28 2010-09-15 李孝勇 超短半径径向水平井的钻井、固井方法及其设备
CN103321575B (zh) * 2013-07-02 2015-07-22 中煤科工集团西安研究院有限公司 一种煤层顶底板穿层孔短半径造斜旋转钻进工艺
CN103924923B (zh) * 2014-04-29 2016-08-24 中国石油大学(北京) 同步多分支径向水平井完井方法及工具
CN108397136A (zh) * 2018-04-13 2018-08-14 西南石油大学 一种应用于超短半径水平井的弹性滚珠式钻具
CN109854174B (zh) * 2019-04-02 2024-03-26 大庆井泰石油工程技术股份有限公司 短半径钻井工具及钻进方法
CN110080681B (zh) * 2019-04-07 2020-08-18 广州市立晟建筑工程有限公司 横向盲孔打孔方法
CN110454086B (zh) * 2019-08-20 2024-04-30 奥瑞拓能源科技股份有限公司 一种大斜度井潜孔钻进控向的方法及装置
CN110500065B (zh) * 2019-09-20 2024-03-08 德州众凯石油科技有限公司 油气井可漂浮下入的筛管结构
CN110821406A (zh) * 2019-11-27 2020-02-21 马鸿彦 具有自找平式导向器的液压驱动定向井钻井装置
CN110984922B (zh) * 2019-12-02 2022-04-08 中国海洋石油集团有限公司 一种多分支超短曲率半径井眼完井防砂管柱结构
CN114687669A (zh) * 2020-12-29 2022-07-01 中国石油化工股份有限公司 一种超短半径水平钻井柔性钻柱及施工方法
CN113914775A (zh) * 2021-10-12 2022-01-11 大庆辰平钻井技术服务有限公司 超短半径水平井造斜稳斜装置及施工方法
CN114412425B (zh) * 2021-12-24 2024-06-04 中煤科工集团西安研究院有限公司 一种煤矿井下筛管水力/空气输送用冲击破碎式助推接头
CN114837630B (zh) * 2022-05-26 2023-08-25 中煤科工集团西安研究院有限公司 一种煤矿井下碎软煤层定向长钻孔快速下筛管系统和方法

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US5458209A (en) * 1992-06-12 1995-10-17 Institut Francais Du Petrole Device, system and method for drilling and completing a lateral well
CN2241222Y (zh) * 1995-12-14 1996-11-27 中国通化石油工具股份有限公司 一种钻铰式开窗铣锥
US6106200A (en) * 1996-11-12 2000-08-22 Techmo Entwicklungs-Und Vertriebs Gmbh Process and device for simultaneously drilling and lining a hole
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN109681152A (zh) * 2018-12-11 2019-04-26 河南工程学院 一种突出煤层护孔装置及其筛管下放方法
CN109681152B (zh) * 2018-12-11 2021-01-12 河南工程学院 一种突出煤层护孔装置及其筛管下放方法

Also Published As

Publication number Publication date
CN1464170A (zh) 2003-12-31
AU2002344529A1 (en) 2003-12-31

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