WO2017128572A1 - 预应力钢绞线在多角度钻探取芯过程中的应用 - Google Patents

预应力钢绞线在多角度钻探取芯过程中的应用 Download PDF

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Publication number
WO2017128572A1
WO2017128572A1 PCT/CN2016/083085 CN2016083085W WO2017128572A1 WO 2017128572 A1 WO2017128572 A1 WO 2017128572A1 CN 2016083085 W CN2016083085 W CN 2016083085W WO 2017128572 A1 WO2017128572 A1 WO 2017128572A1
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Prior art keywords
core
drilling
steel strand
prestressed steel
drill
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PCT/CN2016/083085
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English (en)
French (fr)
Inventor
白瑞峰
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赤峰市浩峰钻机有限责任公司
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Priority to RU2018123781A priority Critical patent/RU2712825C1/ru
Priority to BR112018013565-8A priority patent/BR112018013565B1/pt
Priority to CA2965611A priority patent/CA2965611C/en
Priority to SE1750619A priority patent/SE542308C2/en
Priority to US15/521,622 priority patent/US10364628B2/en
Priority to AU2016351313A priority patent/AU2016351313B2/en
Publication of WO2017128572A1 publication Critical patent/WO2017128572A1/zh
Priority to ZA2018/03646A priority patent/ZA201803646B/en

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    • 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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
    • 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
    • E21B10/00—Drill bits
    • E21B10/02—Core bits
    • 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
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • 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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/16—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors for obtaining oriented cores

Definitions

  • the invention belongs to the field of drilling, in particular, a prestressed steel strand is used for 360 ° fast core taking in drilling, Utilizing the high-strength and high-strength properties of prestressed steel strands, it has changed the problem of low efficiency of double-tube coring and rope coring in today's multi-angle drilling industry.
  • the prestressed steel strand is a building material invented by the Frenchman Eugen Freising in 1928, China 60 Started production in the era, widely used in construction, railway, highway, water conservancy, energy, and rock anchoring construction; it can withstand bending without cracking, expansion and spalling, good impact performance, good toughness, can be round, accounting for
  • the small size, the use of drilling core technology does not require bulky rope towers and large displacement pumps, the underground space does not need to be expanded to improve work efficiency, more convenient and fast in transportation and on-site use.
  • the technical problem solved by the invention is that, by using the characteristics of high strength and toughness of the prestressed steel strand material, the inner core tube of the core core is not deformed and broken in the drill pipe, (the general steel cable and the steel wire rope are bent if pushed horizontally, Insufficient rigidity) Rapid extraction of prestressed steel strands by rolling wheel design to complete extraction of rock Core, no need to lift the drill pipe; realize the 360 ° drilling core technology without changing the prototype structure of the drill, completely solve the cumbersome and cumbersome operation and low efficiency of multi-angle drilling, and maintain the structure inside the hole, rock ore core
  • the adoption rate meets national standards.
  • the advantages of the invention are as follows: 1.
  • the prestressed steel strand has high rigidity, and it can directly push the core tube, and the core is not required to be taken at a time.
  • the drill pipe reduces the auxiliary time of the drill pipe than the prior art, and increases the pure drilling time. The deeper the drilling, the more significant the economic effect. 2.
  • Reduce the labor intensity of workers. 3 the core blockage can be immediately taken, improve the rock core take rate. 4.
  • Reduce the threading and unloading of the drill pipe prolong the life of the drill pipe and reduce the pipe consumption. 5.
  • the pre-stressed steel strand can be used to place the inclinometer in the drill pipe for inclination measurement. 11, power consumption, only a small amount of power can complete the coring operation, without the need to run the rig host.
  • the prestressed steel strand core achieves multi-angle drilling, which can significantly improve the drilling efficiency, ensure the quality of the rock core, and reduce the drilling cost. Greatly reduce labor intensity, increase the income of drilling workers, and increase economic efficiency.
  • Figure 1 is a schematic view showing the structure of the present invention applied to a drilling apparatus
  • FIG 2 is a schematic structural view of the present invention applied to a drilling device (adding a drilling machine)
  • Figure 1-2 1, drill pipe; 2, core inner tube; 3, prestressed steel strand; 4, rolling wheel; 5, winder; 6, power head.
  • the working space is 2 meters wide and 2 meters high, using the power head tunnel rig, the cylinder stroke is 0.75 meters, and the hole depth is 300 meters.
  • Standard of the Ministry of Metallurgy Double-tube coring process the drill pipe is 1.5 meters, and the core inner tube is 1.5 meters.
  • the rig can clamp the core inner tube
  • the effective travel of the rig forward and backward 2 Pull out the core inner tube, remove the drill bit and reamer to take the core, and install the drill bit and reamer to advance the core inner tube with the drill cylinder twice into the hole, and then connect the drill rod to continue. Drill in.
  • the prestressed steel strand coring process operation mode of the invention is the prestressed steel strand coring process operation mode of the invention.
  • the pre-stressed steel stranding process is used.
  • the site supports the rig, and after checking the safety, start up and install the core inner tube 2 to open the hole. (2 core core inner tubes are available on site)
  • core inner tube 2 After the drill is full, use the rolling wheel 4 to transport the prestressed steel strand core coring device, and enter the core inner tube 2 Quickly pull out and put down, then pick up the inner core of the hollow core and use the rolling wheel to drive the prestressed steel strand pusher to push into the core inner tube quickly, get stuck in the core inner tube, pull out the prestressed steel strand 3, and connect the drill Rod 1 continues to drill.
  • the drill pipe is not required to be raised, and the pre-stressed steel strand core-carrying device is transported by the rolling wheel, and the inner core tube of the core is quickly taken out and put down into the drill pipe, and then taken.
  • the inner core tube of the take-off core is driven by the rolling wheel to push the prestressed steel strand pusher into the inner core tube of the core, the core inner tube is stuck, the prestressed steel strand is taken out, and the drill pipe is connected to continue drilling.
  • the existing double-tube coring method under the same conditions The operator needs 80400 pull operation, 40200 loading and unloading drill pipe, elastic drill pipe, and drill thread action to pour the core. If the prestressed steel strand of the present invention is used for core, under the same conditions, the operation is not required.
  • the drill pipe is lifted, it is only necessary to operate the inner core pipe of the core for 400 times to take down the core. (During the replacement of the drill bit, all the drill pipes need to be put forward, and the replacement operation of the three drill bits is 1200 times.) A total of 1600 pull operations can be completed. reduce Operator labor intensity can save 50 times physical labor.
  • the invention is in 2015 During the long-term on-site multi-angle drilling, the experiment proved that there is no abnormality in the core of the prestressed steel strand, and there is no stuck, no hole bottom, and damaged prestressed steel strand. Good stability, meeting the requirements of on-site use to achieve the ideal state of pre-stressed steel strand core; without changing the original structure of the drill, only a small investment can achieve multi-angle drilling.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Metal Extraction Processes (AREA)
  • Wire Processing (AREA)

Abstract

一种预应力钢绞线在多角度钻探取芯过程中的应用，其利用预应力钢绞线材质强度高韧性好的特性，在钻杆内推送岩芯内管不会变形折损，通过滚压轮设计快速提送预应力钢绞线完成提取岩芯，不用提送钻杆；在不改变钻机原型结构情况下，实现360°钻探取芯技术，彻底解决多角度钻探中繁琐劳累的操作、效率低的问题。预应力钢绞线的应用不但可显著地提高钻进效率，还利于保证岩矿取芯质量，降低钻探成本，大大降低劳动强度。

Description

预应力钢绞线在多角度钻探取芯过程中的应用 技术领域
本发明 属于钻探领域，具体说是预应力钢绞线用于钻探中 360 °快速取芯， 利用预应力钢绞线高强高韧的性能，改变当今多角度钻探行业中的双管取芯及绳索取芯作业效率低的难题。
背景技术
现在国内外钻探设备中，最理想、最普及非常成熟的取芯方式 是绳索取芯，即利用钢丝绳，是 1947 年美国长年公司发明绳索取芯钻探技术，到 50 年代形成系列 ； 1972 年中国地质矿产部开始研究绳索取芯钻探技术 ， 80 年代初期国内推广使用，直至现在，绳索取芯钻探范围一直在垂直向下角度内使用，因岩芯内管 需要靠自重力下垂到孔底，所以无法超越钻探角度限制。同时，水平钻探，井下钻探孔位浅、角度多，如井下钻探，空间狭小，大多数是 2x2米的巷道，无法使用绳索取芯以及支撑绳索的塔架，即使使用绳索取芯技术，也需要扩大井下空间，费时、费力成本高，基本不用此工艺。 另一种钻探取芯方式采用双管取芯工艺，该技术是 50 年代 国外引进技术，提取岩芯需要提出全部钻杆，倒取岩芯后再对接钻杆送回孔内，提送钻杆劳动强度大，耗时长，提出钻杆还会造成孔内没有钻杆支撑，引起孔内塌孔、掉块等孔内事故，送进岩芯内管 时会装进塌孔掉块的岩石，造成岩 芯 混乱，岩 芯 自磨，岩矿 芯 采取率不能达到国家标准。地表钻探在 80 年代后期基本不使用双管取芯技术，现多用于水平钻探、井下钻探等多角度钻探行业。
预应力钢绞线是在 1928 年法国人欧仁·弗莱西奈发明的建筑材料，中国 60 年代起步生产，广泛用于建筑、铁路、公路、水利、能源、及岩石锚固施工中；它能承受弯曲而不发生龟裂、膨胀和剥落现象，冲击性能好，韧性好，能盘圆，占地小，运用到钻探取芯技术上不需要笨重的绳索塔架及大排量水泵，井下空间不需要扩大就能提高工作效率，在运输及现场使用更加方便、快捷。
 技术问题
多角度钻探行业中的双管取芯及绳索取芯作业效率低的难题。
技术解决方案
本发明的目的在于提供 预应力钢绞线在多角度钻探取芯过程中 的应用。
本发明的技术方案如下：
预应力钢绞线在多角度钻探取芯过程中的应用。
本发明解决的技术问题是，利用预应力钢绞线材质强度高韧性好的特性，在钻杆内推送岩芯内管不会变形折损，（一般钢索、钢丝绳如果水平推送就折弯，刚性不够）通过滚压轮设计快速提送预应力钢绞线完成提取岩 芯 ，不用提送钻杆；在不改变钻机原型结构情况下，实现 360 °钻探取芯技术，彻底解决多角度钻探中繁琐劳累的操作、效率低的问题，而且能保持孔内结构，岩矿芯 采取率达到国家标准。
 有益效果
本发明的优点在于： 1 、预应力钢绞线的刚性强，它能直接推送岩心管，每次取岩心不用提送 钻杆，比现有技术减少提送钻杆的辅助时间，增加纯钻进时间，钻孔越深经济效果越显著。2、降低工人的劳动强度。3、岩心堵塞可立即捞取，提高岩矿心采取率。4、减少钻杆螺纹拧卸磨损，延长钻杆寿命，降低管材消耗。5、减少钻头扫孔磨损、拧卸及与孔壁碰撞机会，延长钻头寿命。6、减少冲洗液抽吸和孔壁压力失去平衡，从而减少孔内事故。7、减少提送钻的机械磨损，增加钻机使用寿命。8、 减少钻孔弯曲度，提高钻孔质量。9、有利于钻进复杂地层，避免孔壁坍塌掉块。10、可以利用预应力钢绞线在钻杆内放测斜仪，进行测斜。11、耗电省，只需很小的动力就能完成取芯作业，不需钻机主机运转辅助。
总之，预应力钢绞线取芯实现多角度钻探，可显著地提高钻进效率，保证岩矿心质量，降低钻探成本， 大大降低劳动强度，增加钻探工人收入，增加经济效益。
 附图说明
图 1 是本发明应用于钻探设备中的结构示意图；
图 2 是本发明应用于钻探设备中（加钻机）的结构示意图
 本发明的最佳实施方式
本发明的实施方式
下面结合附图对本 发明的应用 作进一步说明。
图 1-2 中， 1 、钻杆； 2 、岩心内管； 3 、预应力钢绞线； 4 、滚压轮； 5 、绕线器； 6 、动力头。
实施例：
作业条件及设备情况
井下水平钻探，作业空间高2宽2米，使用动力头式坑道钻机，油缸行程0.75米，孔深300米任务， 冶金部标准 双管取芯工艺，钻杆1.5米，岩芯内管1.5米。
现有的双管取芯工艺操作方式：
1 、在如上钻探场地支护好钻机， 检查安全后，开机运转，安装岩芯内管开孔钻进。
2 、岩心内管钻满后，（第一回次钻进，钻机夹住岩心内管即可）用钻机有效的行程，前进后退 2 次拉出岩芯内管 ，卸下钻头、扩孔器倒取岩 芯 ，在装上钻头、扩孔器把岩芯内管用钻机油缸分 2 次前进后退送入孔内，接上钻杆继续钻进。
  1. 3、 第二回次装满岩芯内管，要用钻机油缸前进后退 4 次拉出钻杆和岩芯内管 ，卸下钻头、扩孔器倒取岩 芯 ，在装上钻头、扩孔器用 4 次的前进后退动作送入孔内，接上第二根钻杆继续钻进。
  1. 4、 第三回次装满岩芯内管，要用钻机油缸前进后退 6 次拉出钻杆和岩芯内管 ，卸下钻头、扩孔器倒取岩 芯 ，在装上钻头、扩孔器用 6 次的前进后退动作送入孔内，接上第三根钻杆继续钻进。
  1. 5、 以上钻进环节是依次类推。取一回次岩 芯 ，钻杆要全部提出。
如提出送进200根钻杆，需要800次的提送操作，400次的装卸钻杆，时间是约110分钟完成一个回次。
本发明预应力钢绞线取芯工艺操作方式：
1 、 同等条件下 ，使用预应力钢绞线取芯工艺。 场地支护好钻机，检查安全后，开机运转，安装岩 芯内 管 2 开孔钻进。（现场备 2 根岩芯 内管）
2 、岩芯内 管 2 钻满后，用滚压轮 4 输送预应力钢绞线取芯打捞器，进入捞取岩 芯 内管 2 快速拉出放下，随后拿起空岩 芯 内管用滚压轮带动预应力钢绞线推送器快速推入岩芯内管，卡住岩芯内管，抽出预应力钢绞线 3 ，接上钻杆 1 继续钻进。
3 、钻机钻进时，再倒取岩 芯 ，增加了纯钻进时间。
4 、第二回次岩芯内管装满时，不用提出钻杆，用滚压轮 4 输送预应力钢绞线取芯打捞器，进入钻杆内捞取岩 芯 内管快速拉出放下，随后拿起空岩 芯 内管用滚压轮带动预应力钢绞线推送器快速推入岩芯内管，卡住岩芯内管，抽出预应力钢绞线，接上钻杆继续钻进。
5 、钻机钻进时，再倒取岩 芯 。
6 、 第三回次岩芯内管装满时，不用提出钻杆，用滚压轮输送预应力钢绞线取芯打捞器，进入钻杆内捞取岩 芯 内管快速拉出放下，随后拿起空岩 芯 内管用滚压轮带动预应力钢绞线推送器快速推入岩芯内管，卡住岩芯内管，抽出预应力钢绞线，接上钻杆继续钻进。
7 、 钻机钻进时，再倒取岩 芯 。
8 、 以上环节循环操作，不用提出钻杆就可以提取岩 芯 。
使用预应力钢绞线取芯工艺，同等条件下，不用提送200根钻杆，预应力钢绞线提送岩芯内管只需约20分钟完成一个回次，效率 是双管取芯工艺的 5.5 倍。
如果完成一个300米坑道水平孔的钻探任务，同等条件下，现有 的双管取芯方法 需要操作者用80400次拉送操作，用40200次装卸钻杆、松紧钻杆、钻头螺纹动作来倒取岩芯，如果用本发明的预应力钢绞线取芯，同等条件下，操作不需要提送钻杆，只需操作400次拉送岩芯内管倒取岩芯，（期间更换钻头需要钻杆全部提出，更换3支钻头操作计1200次）合计1600次拉送动作即可完工。降低 操作者劳动强度，可节省 50 倍体力劳动。
本发明在 2015 年进行长时间现场多角度钻探，每天十几个小时实验证明，预应力钢绞线取芯无异常发生，没有出现卡钻、送不到孔底、折损预应力钢绞线现象，显示出良好的稳定性，满足现场使用要求达到预应力钢绞线取芯理想状态；不改动钻机原有结构，只需很小的投入，就能实现多角度钻探。
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Claims (1)

1、 预应力钢绞线在多角度钻探取芯过程中的应用。
PCT/CN2016/083085 2016-01-29 2016-05-24 预应力钢绞线在多角度钻探取芯过程中的应用 WO2017128572A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
RU2018123781A RU2712825C1 (ru) 2016-01-29 2016-05-24 Способ проталкивания и вытягивания внутренней керновой трубы в процессе отбора керна
BR112018013565-8A BR112018013565B1 (pt) 2016-01-29 2016-05-24 Aplicação do cabo de aço trançado em processo de perfuração e extração de núcleo multiangular.
CA2965611A CA2965611C (en) 2016-01-29 2016-05-24 Use of pre-stressed steel strand in multi-angle core drilling
SE1750619A SE542308C2 (en) 2016-01-29 2016-05-24 Use of pre-stressed steel strand in the procedure of multi-angle drilling coring
US15/521,622 US10364628B2 (en) 2016-01-29 2016-05-24 Use of pre-stressed steel strand in the procedure of multi-angle drilling coring
AU2016351313A AU2016351313B2 (en) 2016-01-29 2016-05-24 Use of pre-stressed steel strand in the procedure of multi-angle drilling coring
ZA2018/03646A ZA201803646B (en) 2016-01-29 2018-05-31 Use of pre-stressed steel strand in the procedure of multi-angle drilling coring

Applications Claiming Priority (2)

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