CN105064919A - Ultra-short-radius radial lateral drilling method for horizontal wells - Google Patents
Ultra-short-radius radial lateral drilling method for horizontal wells Download PDFInfo
- Publication number
- CN105064919A CN105064919A CN201510451062.9A CN201510451062A CN105064919A CN 105064919 A CN105064919 A CN 105064919A CN 201510451062 A CN201510451062 A CN 201510451062A CN 105064919 A CN105064919 A CN 105064919A
- Authority
- CN
- China
- Prior art keywords
- deflecting
- well
- tool
- horizontal
- whipstock
- 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.)
- Pending
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to an ultra-short-radius radial lateral drilling method for a horizontal well. Problems that in the existing horizontal well ultra-short-radius radial lateral drilling method, boreholes are irregular, a horizontal distance is short, cost is high, and safety is poor are solved. The ultra-short-radius radial lateral drilling method for horizontal wells is characterized by comprising the following steps of (1) borehole preparation, (2) whipstock tripping-in, (3) window opening, (4) deflecting flexible drill pipe tripping-in for deflecting, (5) open hole logging, (6) horizontal drilling, and (7) well completion. After a horizontal well is drilled by the method, a radius is small, a borehole is regular, a horizontal distance is long, drilling time is short, construction cost is low, and safety is high.
Description
Technical field
The present invention relates to oilfield, specifically a kind of super short radius sidetrack horizontal well method.
Background technology
In slim-hole, bore super short radial horizontal well at present, usually adopt following two kinds of methods: one is break rock with high-pressure injection, and feature is drilling tool non rotating, hole anomaly, and size is little, and cannot measure well, horizontal range is limited; Two is with mud motor, and must be hinged screw rod or turbine, feature be that power drilling tool is fragile, produce and maintenance cost high, build angle rate is limited, and safety is not high.
Summary of the invention
In order to overcome existing radial side horizontal well drilling method hole anomaly, horizontal range is little and cost is high, the deficiency of poor stability, the invention provides a kind of super short radius sidetrack horizontal well method, adopt the method horizontal well drilling, radius is little, well is regular, horizontal range is long, and drilling time is short, construction cost is low, safety is high.
Technical scheme of the present invention is: a kind of super short radius sidetrack horizontal well method, comprises the following steps:
(1), well prepares
Comprise drifting, carry out gyro to measure, upper sleeve pressure testing, cleaning internal surface of sleeve pipe;
(2) whipstock is entered,
By drilling rod, whipstock is transferred to appointment well depth, utilize gyroscope to position whipstock, suppress to whipstock after having located and set;
(3), window
Utilize drilling rod to drive milling cone lower to whipstock top, opening is carried out to tube wall;
(4) deflecting flex-stem deflecting is entered,
Utilize drilling rod that deflecting tool is transferred to whipstock position, by up and down correct work plane direction of ajusting instrument, carry out deflecting and creep into, build angle rate is 12 °/meter-20 °/meters, and deflecting creeps into 5 meters, and deflecting is complete;
(5), bore hole well logging
After deflecting creeps into, deflecting tool is proposed, under enter deviational survey tool string and carry out bore hole well logging, logging tool string is transferred to deflecting shaft bottom, slowly carries tubing string by the multiple shot tool record well track on deviational survey tool string, tool string proposes tubing string logging tool string after proposing whipstock position;
(6), horizontal drilling
Carry out horizontal drilling after well logging, utilize drilling rod that horizontal drilling instrument is transferred to deflecting and bore borehole bottom, carry out horizontal drilling, creep into 30 meters, horizontal drilling is complete;
(7), completion
Utilize drilling rod that completion tool is transferred to the shaft bottom of horizontal drilling, by drilling rod back-off, the flexible screen casing that completion tool carries is stayed in well, complete completion.
The present invention has following beneficial effect: adopt the method to bore super short radial horizontal well, radius of curvature is little, can be 2.8-3.8m, and inclination section horizontal position shifts near 3m, vertical depth 3m, and flexible drill string intensity is high, and oil sheet reserves can be employed in sidetracking horizontal movement >=30 meter.This ultra-short radius horizontal drilling method solves the technical barrier of lower sieve tube completion, is a kind of emerging Oil/gas Well transformation method for increasing, plays obvious effect of increasing production; System construction is simple, and reduce down hole problem, short construction period, efficiency is high; Safety is good, and drilling cost is low, has good promotional value and effect.Main adaptation mesohigh, middle Middle-Low Permeability Reservoirs, comprise the stratum such as sandstone, argillaceous siltstoue, mud shale, is also applicable to limestone oil reservoir and the little conglomerate reservoir of particle diameter simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of deflecting tool in the present invention;
Fig. 2 is the structural representation of deviational survey instrument in the present invention;
Fig. 3 is the structural representation of horizontal drilling instrument in the present invention;
Fig. 4 is the structural representation of completion tool in the present invention.
1-211 tool joint in figure, on 2-deflecting, three connect, 3-flex-stem A, 4-guiding screen casing A, 5-tricone bit A, 6-211 is without magnetic tool joint, 7-is without the flexible short circuit of magnetic, and 8-multiple shot tool is without the soft floating drum of magnetic, and on 9-horizontal drilling, three connect, 10-flex-stem B, 11-guiding screen casing B, 12-tricone bit B, 13-depart from short circuit, the flexible screen casing of 14-, 15-tail end guide head.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
By shown in Fig. 1 to Fig. 4, a kind of super short radius sidetrack horizontal well method, comprises the following steps:
(1), well prepares
(1) drifting, makes well unobstructed;
(2) measured by gyroscope, grasp old well track;
(3) upper sleeve pressure testing, understands sleeve pipe fine status;
(4) consult old well interrelated data, understand cementing quality, offset well pressure coefficient is provided;
(5) internal surface of sleeve pipe is cleared up.
(2) whipstock is entered,
By Ф 73 right-hand drill pipe, whipstock is transferred to appointment well depth, utilize logging truck that gyroscope is transferred in the landing nipple above whipstock, by rotating the angle of drilling rod and gyro data determination whipstock needs, after completing location, gyroscope is proposed, utilize pump truck to be suppressed to whipstock by sebific duct and drilling rod after having located to set, pressure 25MPa keeps 10 minutes, and whipstock sets complete.
(3), window
Utilize drilling rod to drive milling cone lower to whipstock top, opening is carried out to tube wall;
(4) deflecting flex-stem deflecting is entered,
As shown in Figure 1,211 tool joint 1 bottoms are by deflecting three connects 2 and connects Φ 90 flex-stem A3 deflecting tool, and flex-stem bottom connects Φ 108 and to lead screen casing A4, and guiding screen casing A4 bottom connects tricone bit 5.Above-mentioned deflecting tool transfers to whipstock position by Ф 73 right-hand drill pipe, by up and down correct work plane direction of ajusting instrument, by controlling the revolution of workover rig, the pressure of the drill, the discharge capacity of moment of torsion and pump truck is carried out deflecting and is crept into, wherein the revolution of workover rig is 20r/min, and the pressure of the drill is 1.5T-2T, moment of torsion 1000-1500N/m, the discharge capacity of pump truck is 400-600L/min, build angle rate is 12 °/meter-20 °/meters, and deflecting creeps into 5 meters, and deflecting is complete.
(5), bore hole well logging
Adopt deviational survey instrument as shown in Figure 2 to carry out bore hole well logging, 211 connect Φ 95 without the flexible short circuit 7 of magnetic without magnetic tool joint 6 bottom, connect the soft floating drum 8 of multiple shot tool, be placed with multiple shot tool in the soft floating drum 8 of multiple shot tool without flexible short circuit 7 bottom of magnetic.
Propose deflecting tool after deflecting creeps into, carry out bore hole well logging by entering above-mentioned deviational survey tool string under drilling rod, logger is small size multiple shot tool, and diameter is only 21mm, and length is 24.5mm.Logging tool string is transferred to deflecting shaft bottom, and slowly carry tubing string by the multiple shot tool record well track on deviational survey tool string, tool string proposes tubing string logging tool string after proposing whipstock position.
(6), horizontal drilling
Horizontal drilling instrument is as shown in Figure 3 adopted to carry out horizontal drilling, 211 tool joint 1 bottoms connect three connections 9 on horizontal drilling, on horizontal drilling, three connect 9 bottoms connection Φ 90 flex-stem B10, flex-stem bottom connects Φ 108 and to lead screen casing B11, and guiding screen casing bottom connects Φ 118 tricone bit B12.
Carry out horizontal drilling after well logging, utilize drilling rod that horizontal drilling instrument is transferred to deflecting and bore borehole bottom, carry out horizontal drilling by the discharge capacity controlling the revolution of workover rig, the pressure of the drill, moment of torsion and pump truck, creep into 30 meters, horizontal drilling is complete.Wherein the revolution of workover rig is 20r/min, and the pressure of the drill is increased gradually by 1.5T to 6T, moment of torsion 1000-1500N/m, and the discharge capacity of pump truck is 400-600L/min.
(7), completion
Adopt completion tool as shown in Figure 4 to carry out completion, 211 tool joint 1 bottoms connect Φ 108 and depart from short circuit 13, depart from short circuit bottom and connect the flexible screen casing 14 of Φ 108, and flexible screen casing bottom connects Φ 108 tail end guide head 15.
Utilize drilling rod that completion tool is transferred to the shaft bottom of horizontal drilling, being proposed departing from short circuit 13 by drilling rod back-off, flexible screen casing 14 and tail end guide head 15 being stayed in well, completes completion.
Claims (1)
1. a super short radius sidetrack horizontal well method, is characterized in that comprising the following steps:
(1), well prepares
Comprise drifting, carry out gyro to measure, upper sleeve pressure testing, cleaning internal surface of sleeve pipe;
(2) whipstock is entered,
By drilling rod, whipstock is transferred to appointment well depth, utilize gyroscope to position whipstock, suppress to whipstock after having located and set;
(3), window
Utilize drilling rod to drive milling cone lower to whipstock top, opening is carried out to tube wall;
(4) deflecting flex-stem deflecting is entered,
Utilize drilling rod that deflecting tool is transferred to whipstock position, by up and down correct work plane direction of ajusting instrument, carry out deflecting and creep into, build angle rate is 12 °/meter-20 °/meters, and deflecting creeps into 5 meters, and deflecting is complete;
(5), bore hole well logging
After deflecting creeps into, deflecting tool is proposed, under enter deviational survey tool string and carry out bore hole well logging, logging tool string is transferred to deflecting shaft bottom, slowly carries tubing string by the multiple shot tool record well track on deviational survey tool string, tool string proposes tubing string logging tool string after proposing whipstock position;
(6), horizontal drilling
Carry out horizontal drilling after well logging, utilize drilling rod that horizontal drilling instrument is transferred to deflecting and bore borehole bottom, carry out horizontal drilling, creep into 30 meters, horizontal drilling is complete;
(7), completion
Utilize drilling rod that completion tool is transferred to the shaft bottom of horizontal drilling, by drilling rod back-off, the flexible screen casing that completion tool carries is stayed in well, complete completion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510451062.9A CN105064919A (en) | 2015-07-28 | 2015-07-28 | Ultra-short-radius radial lateral drilling method for horizontal wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510451062.9A CN105064919A (en) | 2015-07-28 | 2015-07-28 | Ultra-short-radius radial lateral drilling method for horizontal wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105064919A true CN105064919A (en) | 2015-11-18 |
Family
ID=54494400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510451062.9A Pending CN105064919A (en) | 2015-07-28 | 2015-07-28 | Ultra-short-radius radial lateral drilling method for horizontal wells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105064919A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223871A (en) * | 2016-08-10 | 2016-12-14 | 中国石油天然气股份有限公司 | Flex-stem |
| CN106761401A (en) * | 2016-11-15 | 2017-05-31 | 中国石油天然气股份有限公司 | Horizontal well drilling tool |
| CN108756746A (en) * | 2018-05-08 | 2018-11-06 | 中国石油集团渤海钻探工程有限公司 | A kind of barefoot laterally drilling ultra-short radius controllable levels well boring method |
| CN109577863A (en) * | 2018-12-25 | 2019-04-05 | 北京大德广源石油技术服务有限公司 | Ultra-short radius sidetracking orients specific purpose tool |
| CN109854174A (en) * | 2019-04-02 | 2019-06-07 | 大庆井泰石油工程技术股份有限公司 | Short radius drilling tool and drilling method |
| CN110778310A (en) * | 2019-10-12 | 2020-02-11 | 中国海洋石油集团有限公司 | Installation inclinometer while drilling |
| CN112324416A (en) * | 2020-11-05 | 2021-02-05 | 中国石油天然气股份有限公司 | Multi-packer process pipe column and method for selective and repeated reconstruction of old well |
| CN112814658A (en) * | 2021-03-26 | 2021-05-18 | 中国石油化工股份有限公司胜利油田分公司石油工程技术研究院 | Flexible inclination measuring system and method for ultra-short radius well |
| CN113482533A (en) * | 2021-08-20 | 2021-10-08 | 大庆辰平钻井技术服务有限公司 | Completion system and completion method for ultra-short radius horizontal well universal perforated sieve tube |
| CN113530444A (en) * | 2021-08-09 | 2021-10-22 | 大庆明悦石油科技有限公司 | Ultra-short radius horizontal well drilling and completion process |
| CN114109249A (en) * | 2021-10-13 | 2022-03-01 | 中国石油大学(北京) | Ultra-short radius radial drilling string, system and method for coiled tubing flexible drill pipe |
| WO2022194159A1 (en) * | 2021-03-16 | 2022-09-22 | 徐梓辰 | Well logging device and method |
| WO2023001099A1 (en) * | 2021-07-19 | 2023-01-26 | 蓝土地能源技术有限公司 | Rigid transfer branch well drilling and completion tool and drilling method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832105A (en) * | 2010-04-28 | 2010-09-15 | 李孝勇 | Method for well drilling and cementing of radial horizontal well with ultra-short radius and equipment thereof |
| CN201991455U (en) * | 2011-04-08 | 2011-09-28 | 大庆市伟聚密封制品有限公司 | Special oriented flexible screen pipe for drilling and completion |
-
2015
- 2015-07-28 CN CN201510451062.9A patent/CN105064919A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832105A (en) * | 2010-04-28 | 2010-09-15 | 李孝勇 | Method for well drilling and cementing of radial horizontal well with ultra-short radius and equipment thereof |
| CN201991455U (en) * | 2011-04-08 | 2011-09-28 | 大庆市伟聚密封制品有限公司 | Special oriented flexible screen pipe for drilling and completion |
Non-Patent Citations (4)
| Title |
|---|
| 宫华等: "大庆油田超短半径水平井钻井技术", 《石油钻探技术》 * |
| 张兆盈等: "《钻井科技创新与管理创新研究》", 30 July 1999, 石油工业出版社 * |
| 朱健军: "侧钻超短半径水平井J37_26_P14井钻井设计与施工", 《石油钻探技术》 * |
| 李艳秋: "高125_22超短半径侧钻水平井钻井技术", 《中外能源》 * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223871B (en) * | 2016-08-10 | 2019-04-12 | 中国石油天然气股份有限公司 | Flex-stem |
| CN106223871A (en) * | 2016-08-10 | 2016-12-14 | 中国石油天然气股份有限公司 | Flex-stem |
| CN106761401A (en) * | 2016-11-15 | 2017-05-31 | 中国石油天然气股份有限公司 | Horizontal well drilling tool |
| CN108756746A (en) * | 2018-05-08 | 2018-11-06 | 中国石油集团渤海钻探工程有限公司 | A kind of barefoot laterally drilling ultra-short radius controllable levels well boring method |
| CN109577863A (en) * | 2018-12-25 | 2019-04-05 | 北京大德广源石油技术服务有限公司 | Ultra-short radius sidetracking orients specific purpose tool |
| CN109577863B (en) * | 2018-12-25 | 2019-10-15 | 北京大德广源石油技术服务有限公司 | Ultra-short radius sidetracking orients specific purpose tool |
| CN109854174B (en) * | 2019-04-02 | 2024-03-26 | 大庆井泰石油工程技术股份有限公司 | Short radius drilling tool and drilling method |
| CN109854174A (en) * | 2019-04-02 | 2019-06-07 | 大庆井泰石油工程技术股份有限公司 | Short radius drilling tool and drilling method |
| CN110778310A (en) * | 2019-10-12 | 2020-02-11 | 中国海洋石油集团有限公司 | Installation inclinometer while drilling |
| CN112324416A (en) * | 2020-11-05 | 2021-02-05 | 中国石油天然气股份有限公司 | Multi-packer process pipe column and method for selective and repeated reconstruction of old well |
| CN112324416B (en) * | 2020-11-05 | 2022-08-30 | 中国石油天然气股份有限公司 | Multi-packer process pipe column and method for selective and repeated reconstruction of old well |
| WO2022194159A1 (en) * | 2021-03-16 | 2022-09-22 | 徐梓辰 | Well logging device and method |
| CN112814658A (en) * | 2021-03-26 | 2021-05-18 | 中国石油化工股份有限公司胜利油田分公司石油工程技术研究院 | Flexible inclination measuring system and method for ultra-short radius well |
| WO2023001099A1 (en) * | 2021-07-19 | 2023-01-26 | 蓝土地能源技术有限公司 | Rigid transfer branch well drilling and completion tool and drilling method thereof |
| CN113530444A (en) * | 2021-08-09 | 2021-10-22 | 大庆明悦石油科技有限公司 | Ultra-short radius horizontal well drilling and completion process |
| CN113482533A (en) * | 2021-08-20 | 2021-10-08 | 大庆辰平钻井技术服务有限公司 | Completion system and completion method for ultra-short radius horizontal well universal perforated sieve tube |
| CN114109249A (en) * | 2021-10-13 | 2022-03-01 | 中国石油大学(北京) | Ultra-short radius radial drilling string, system and method for coiled tubing flexible drill pipe |
| CN114109249B (en) * | 2021-10-13 | 2023-01-31 | 中国石油大学(北京) | Ultra-short radius radial drilling string, system and method for coiled tubing flexible drill pipe |
| WO2023060831A1 (en) * | 2021-10-13 | 2023-04-20 | 中国石油大学(北京) | Continuous-pipe flexible drill rod ultra-short radius radial drilling column, system, and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105064919A (en) | Ultra-short-radius radial lateral drilling method for horizontal wells | |
| US7481280B2 (en) | Method and apparatus for conducting earth borehole operations using coiled casing | |
| US7934563B2 (en) | Inverted drainholes and the method for producing from inverted drainholes | |
| CN111742110B (en) | Pressure testing of inflatable packer assembly | |
| EP2569504B1 (en) | System and method for conducting drilling and coring operations | |
| US20110214920A1 (en) | Universal drilling and completion system | |
| CN102146779B (en) | Underground locating and angle-fixing drilling and windowing tool for horizontal well | |
| CN101718171A (en) | Drilling completion matching method for sidetracking horizontal well | |
| CN105888554B (en) | Surge and push away multiple shock oscillator | |
| CN101994503A (en) | Production increasing method of coalbed gas | |
| CN201915876U (en) | Drilling window opening tool for horizontal well underground positioning and angle fixing | |
| CN105507839A (en) | Window milling method for casings of continuous oil pipes | |
| CN103867119A (en) | Coal reservoir well completion renovation method | |
| CN102296950B (en) | Hydraulic shearing type sampling drilling tool | |
| US20120097452A1 (en) | Downhole Tool Deployment Measurement Method and Apparatus | |
| CN108756746A (en) | A kind of barefoot laterally drilling ultra-short radius controllable levels well boring method | |
| CN104632171A (en) | Branching well staged fracturing well completion underground complete equipment and method | |
| CN104912479A (en) | Method for drilling and completion of horizontal branched well for coal bed gas | |
| CN104912480B (en) | Coal bed gas near-end docks the brill completion method of horizontal well | |
| CN203347688U (en) | Deviation-control way-type drilling unit | |
| CN100575659C (en) | A kind of insufficient balance well completion method | |
| CN112431579B (en) | Preset small-diameter pipe internal fracturing device and method for side drilling well and small-hole well | |
| CN210033281U (en) | Composite pilot coal bed gas drilling device and drilling well for underground coal reservoir | |
| CN110295883B (en) | Cable throwing-retracting type over-drill rod well logging process | |
| CN105625945A (en) | Drilling device used for low permeability reservoir and drilling method of drilling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |