WO2014012349A1 - 随钻测井的信息传输装置 - Google Patents

随钻测井的信息传输装置 Download PDF

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Publication number
WO2014012349A1
WO2014012349A1 PCT/CN2013/000713 CN2013000713W WO2014012349A1 WO 2014012349 A1 WO2014012349 A1 WO 2014012349A1 CN 2013000713 W CN2013000713 W CN 2013000713W WO 2014012349 A1 WO2014012349 A1 WO 2014012349A1
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WO
WIPO (PCT)
Prior art keywords
hole
logging
information transmission
cable
transmission device
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.)
Ceased
Application number
PCT/CN2013/000713
Other languages
English (en)
French (fr)
Inventor
刘广华
邹连阳
刘新立
黄衍福
陶诗凯
杨文景
闫国兴
史宏江
李铁军
王晨
石倩
孙成芹
张春华
周智勇
潘兴明
吴庆奎
李张健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Petroleum Corp
CNPC Engineering Technology R&D Co Ltd
Beijing Petroleum Machinery Co Ltd
Original Assignee
China National Petroleum Corp
CNPC Drilling Research Institute Co Ltd
Beijing Petroleum Machinery Factory
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 China National Petroleum Corp, CNPC Drilling Research Institute Co Ltd, Beijing Petroleum Machinery Factory filed Critical China National Petroleum Corp
Priority to US14/415,944 priority Critical patent/US9816327B2/en
Priority to CA2879575A priority patent/CA2879575C/en
Publication of WO2014012349A1 publication Critical patent/WO2014012349A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/028—Electrical or electro-magnetic connections
    • 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
    • E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
    • 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
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • 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
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F16L11/127—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting electrically conducting

Definitions

  • the invention relates to the field of oil and natural gas drilling, and in particular relates to an information transmission device during a logging while drilling.
  • the methods of logging while drilling are also enriched. Not only conventional gamma, neutron porosity, lithology density, phase shift resistivity and attenuating resistivity, but also azimuth while drilling, such as: azimuth density neutron logging tool provides azimuth density and photoelectricity Factor, bit resistivity instruments provide azimuth gamma and real-time resistivity images, multiple imaging depth quantitative imaging logs, near-bit geosteering logs, and rotary-guided logs.
  • azimuth density neutron logging tool provides azimuth density and photoelectricity Factor
  • bit resistivity instruments provide azimuth gamma and real-time resistivity images
  • multiple imaging depth quantitative imaging logs near-bit geosteering logs
  • rotary-guided logs The diverse logging while drilling technology provides a wealth of downhole information for ground crews (geologists). This information is uploaded from the underground to the ground through a certain information transmission channel.
  • the staff analyzes and judges the geological conditions and engineering conditions of the formation being drilled, so as to adjust the drilling direction in time to control the most favorable well trajectory.
  • the drilling parameters can be adjusted in time according to the project conditions. Prevent the occurrence of various unsafe conditions in the underground and ensure safe production.
  • the existing information transmission mainly has a transmission mode such as mud pulse, electromagnetic wave or electromagnetic coupling.
  • these transmission methods all have the problems of slow information transmission speed, interference of downhole casing and complex working conditions, and poor transmission reliability, resulting in a small amount of information obtained while drilling or logging while drilling. Partially transmitted to the ground in real time, and even lead to the loss of transmission data, which is extremely unfavorable for the ground decision makers to accurately judge and decide the downhole situation in real time.
  • the embodiment of the present invention provides an information transmission device for logging while drilling.
  • the technical solution is as follows:
  • an information transmission device for logging while drilling comprising a hollow drill rod electrically connected to a ground device and at least one cable, the drill rod comprising at least one first drill rod member and a mutually spaced spliced piece and At least one second drill rod member;
  • the first drill rod member includes a through hole, and the second drill rod member includes a stepped hole;
  • each of the cables includes a fixed end, a connecting end, and a folded portion connecting the fixed end and the connecting end;
  • a cable is fixed in the stepped hole through the fixed end or connected to the connecting end of the adjacent cable; the connecting end can be stretched along the stepped hole and stretched until it passes through the through hole Further, the folded portion is spiral and is wound by a corresponding cable.
  • the stepped hole includes a first section of the hole penetrating the first end of the second drill rod member, the first section of the hole has a flared cross section, and the fixed end is fixed to the inner wall of the first section of the hole.
  • each of the first drill rod members is extended with a cassette, and the cassette is fixed in the first section of the hole.
  • the stepped hole further includes a receiving portion connecting the first hole and a second hole extending through the second end of the second drill member, the folded portion is received in the receiving portion, and the connecting end extends through the second hole
  • the electrical connection is connected to the logging instrument or the fixed end of the adjacent cable.
  • the stepped hole further has a transition portion between the receiving portion and the second hole, the diameter of the transition portion is smaller than the diameter of the receiving portion and the second hole, and the transition portion is between the receiving portion and the second hole.
  • a stepped surface is formed, and a passage extending through the two stepped surfaces is disposed between the two stepped surfaces, the folded portion abuts against one of the stepped surfaces, and the connecting end extends through the passage to the second section of the hole.
  • each of the second drill rods extends to form a connecting portion, and each of the first drill rods is provided with a connecting port, and the connecting portion is fixed in the connecting port.
  • connecting portion is provided with an external thread
  • connecting port is provided with an internal thread
  • connecting portion and the connecting port are connected by a screw.
  • outer wall surface of the connecting portion and the inner wall surface of the connecting port are both inclined surfaces.
  • each cable is provided with docking devices, and each cable is docked or broken by the docking device.
  • FIG. 1 is a partial schematic view of an information transmission device of a logging while drilling according to an embodiment of the present invention
  • FIG. 2 is a partial schematic view of the mechanism of FIG.
  • an embodiment of the present invention provides an information transmission device for logging while drilling
  • the information transmission device of the logging while drilling includes a hollow drill pipe 1 and at least one cable 2 disposed in the hollow drill pipe.
  • the drill pipe 1 is connected to the ground equipment.
  • One end of the cable 2 is electrically connected to a logging instrument (not shown), and the other end of the cable 2 is electrically connected to ground equipment on the ground (not shown), thereby passing various information of the underground formation obtained by the logging instrument.
  • the cable 2 is transmitted to the ground equipment for the staff to analyze and judge the geological conditions and engineering conditions of the formation being drilled, and adjust the drilling direction in time to control the most favorable well trajectory. Referring to FIG.
  • each cable 2 includes a fixed end 21, a connecting end 22 opposite to the fixed end 21, and a folded portion 23 connecting the fixed end 21 and the connecting end 22.
  • the folded portion 23 is The spiral shape, that is, is wound by the cable 2, to increase the tensile elasticity of the cable 2, and to facilitate the free stretching of the cable 2.
  • the connecting end 22 is provided with a docking device 3 for electrically connecting the cable 2 to the fixed end 21 of the adjacent cable 2 or to the logging tool.
  • the fixed end 21 is selectively fixed in the hollow drill pipe 1 or connected to the connecting end 22 of the adjacent cable 2.
  • the fixed end 21 is also provided with a docking device 3, thereby being fixed in the hollow by the docking device 3 Inside the drill pipe 1.
  • the hollow drill pipe 1 includes at least one first drill pipe member 10 and at least one second drill pipe member that are spaced apart from each other.
  • a first connection port 102 is provided at the first end of each of the first drill rod members 10.
  • the inner wall of the connection port 102 is provided with a thread.
  • the second end of the first drill rod member 10 extends to form a cassette 104 fixed to the adjacent second drill rod member 11.
  • the cassette 104 may also be threaded to facilitate threading engagement with the adjacent second rod member 11.
  • a through hole 106 is formed through the connecting port 102 and the latch 104 at the axis of each of the first drill rod members 10 to facilitate passage of the cable 2.
  • Each of the second drill rod members 11 includes a first end and a second end opposite the first end.
  • the second end of the second drill rod member 11 extends to form a joint portion 111.
  • the joint portion 111 is threaded to be screwed to the joint port 102 of the adjacent first drill rod member 10.
  • the connecting portion 111 of each of the second drill rod members 11 and the connecting port 102 of the adjacent first drill rod member 10 may also be connected by a snapping, interference fit or the like.
  • Each of the second drill rod members 11 is provided with a stepped hole 113 extending through the first end and the second end of the second drill rod 11 along the axis.
  • the stepped hole 113 includes a first segment hole 115 penetrating the first end of the second drill rod member 11, a receiving portion 117 obliquely connecting the first segment hole 115, a transition portion 118 connecting the receiving portion 117, and connecting and penetrating the second portion A second length of hole 119 of the second end of the drill rod member 11.
  • the cross-sectional shape of the first-stage hole 115 is flared, and the hole diameter near the first end of the second drill pipe 11 is large to facilitate the loading of the cable 2 from the first-stage hole 115 and fixing the cable 2
  • the end 21 is selectively fixed to the inner wall of the first section of the hole 115.
  • the inner wall of the first section of the hole 115 is provided with a fixing hole or a device joint to fix the fixed end 21 of the cable 2.
  • the cassette 104 of the first drill rod member 11 can also be fixedly inserted into the first section of the hole 115.
  • the transition portion 118 is located between the receiving portion 117 and the second hole 119, and the diameter of the transition portion 118 is smaller than the diameter of the receiving portion 117 and the second hole 119, so that the transition portion 118 and the receiving portion U7 and the second segment hole 119 are A stepped surface 116 is formed between each.
  • the hollow drill pipe 1 is also provided with a passage 114 extending through the two step faces 1 16 .
  • the folded portion 23 of the cable 2 is received in the receiving portion 117, and the connecting end 22 of the cable 2 is located after passing through the passage 114.
  • the second section of the hole 119 such that the cable 2 is pulled in the second section of the hole 119, allows the cable to be elongated for ease of use.
  • the end of the folded portion 23 near the connecting end 22 always abuts against one of the step faces 116 to prevent the cable 2 from being knotted or tangled during stretching, and also helps prevent The cable 2 slides off the second drill rod member 11.
  • the transition portion 118 and the passage 114 may not be provided, but the connection end 22 may be directly received in the second section of the hole 119 after coming out of the receiving portion 117.
  • the outer wall surface of the latch 104 of each of the first drill rod members 10, the outer wall surface of the connecting portion 111 of each of the second drill rod members 11, and the connection of each of the first drill rod members 10 The inner wall surface of the port 102 is inclined.
  • each cable 2 is first fixedly mounted in the corresponding second drill rod member 11; and each second drill rod member is further The connecting portion 1 11 of the 11 is fixed in the connecting port 102 of the corresponding first drill rod member 10, and is stretched and the connecting end 22 of each cable 2 is penetrated through the through hole of the corresponding first drill rod member 10 After 106, it is attached to the fixed end 21 of the cable 2 of the next adjacent second drill rod member 11 or to the logging tool.
  • the fixed end 21 of the cable 2 near the ground equipment is fixed to the inner wall of the first section of the hole 115 of the corresponding second drill rod member 11.
  • the at least one first drill rod member 10 and the at least one second drill rod member 11 are alternately spliced into the drill rod 1 according to the distance from the downhole to the ground, and the through hole 106 and the first drill rod member 10 are through holes 106 and The stepped holes 113 of the two drill rod members 11 are connected to form a passage for the cable 2 to pass through, and at least one cable 2 and the logging tool are connected so that the logging tool, the cable 2, and the ground are closest to the ground.
  • the second drill pipe 11 and the ground equipment form a circulation circuit, so that the information measured by the logging instrument is transmitted to the ground through an electric signal for use by the ground workers, and the transmission speed is fast.
  • the through hole 106 of the first drill rod member 10 and the stepped hole 113 of the second drill rod member 11 of the information transmission device of the logging while drilling according to the embodiment of the present invention are connected to form a supply cable. 2
  • the passage through which provides protection for cable 2 overcomes the interference and influence of the downhole casing and complex working conditions on information transmission, and improves the reliability of transmission.
  • the information transmission device of the logging while drilling tool directly uses the cable 2 for information data transmission, and has a simple structure and a high transmission speed.
  • the invention overcomes the problem that the bottom hole casing and the complicated working condition interfere with the information transmission, the influence and the information transmission speed are slow.
  • the through hole of the first drill rod member and the stepped hole of the second drill rod member of the information transmission device of the logging while drilling method form a passage for the cable to pass through, thereby providing protection for the cable. It overcomes the interference and influence of the bottom casing and complex working conditions on information transmission, and improves the reliability of transmission.
  • the letter of the logging while drilling of the present invention The information transmission device directly uses the cable for information data transmission, and has a simple structure and a high transmission speed.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • General Engineering & Computer Science (AREA)
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  • Geophysics And Detection Of Objects (AREA)

Description

随钻测井的信息传输装置
技术领域
本发明涉及石油、天然气钻井领域，特别涉及一种随钻测井过程中的信息传输装 置。
背景技术
在进行石油、 天然气的开发过程中， 为了及时的掌控井下的情况， 通常需要通过 随钻测井及导向技术将井下信息传输到井上的工作者 （地质工作者） 。
随着技术地不断发展， 随钻测井的方法也不断丰富。 不但有常规的伽马、 中子孔 隙度、 岩性密度、 相移电阻率和衰减电阻率等； 而且还出现了随钻方位测井， 如： 方 位密度中子测井仪提供方位密度和光电因子、钻头电阻率仪器提供方位伽马和实时电 阻率图像、 多探测深度的定量成像测井、 近钻头地质导向测井、 旋转导向测井等。 多 样化的随钻测井及导向技术为地面工作人员 （地质工作者） 提供了丰富的井下信息。 这些信息通过一定信息传输通道从井下上传至地面。工作人员根据这些信息， 分析判 断正在钻遇地层的地质情况和工程情况， 从而适时地调整钻进方向， 控制最有利的井 眼轨迹； 此外还可以根据工程情况及时调整钻井参数， 有预判地防止各种井下不安全 工况的发生， 保证安全生产。 然而， 在利用现有的随钻测井或随钻方位测井设备时， 发明人发现现有技术至少存在以下问题： 由于现有的信息传输主要有泥浆脉冲、 电磁 波或电磁耦合等传输方式。然而， 这些传输方式均存在信息传输速度慢、井底套管和 复杂工况的干扰及传输可靠性差的问题，从而导致随钻测井或随钻方位测井而获得的 丰富的信息只有一小部分实时地传输到地面， 甚至还会导致传输数据丢失，这样就极 不利于地面决策人员实时准确地对井下情况的判断和决策。
发明内容
为了解决上述信息传输速度慢、易受外界干扰及传输可靠性差的问题， 本发明实 施例提供了一种随钻测井的信息传输装置。 所述技术方案如下：
一方面， 提供了一种随钻测井的信息传输装置， 其包括电连接于地面设备上的空 心钻杆和至少一根缆线，钻杆包括互间隔拼接的至少一个第一钻杆件和至少一个第二 钻杆件； 第一钻杆件包括一个通孔， 第二钻杆件包括一个阶梯孔； 每一根缆线包括固 定端、连接端及连接固定端和连接端的折叠部； 每一个缆线通过固定端固定在阶梯孔 内或与相邻缆线的连接端连接； 连接端可沿着阶梯孔拉伸， 并一直拉伸直至穿过通孔 进一歩地， 折叠部为螺旋状， 由对应的缆线卷绕而成。
进一步地， 阶梯孔包括贯穿第二钻杆件的第一端的第一段孔， 第一段孔的截面呈 喇叭状， 固定端固定在第一段孔的内壁。
进一步地， 每一第一钻杆件延伸设有一个卡隼， 卡隼固定在第一段孔内。
进一步地， 阶梯孔还包括连接第一段孔的收容部和贯穿第二钻杆件的第二端的第 二段孔，折叠部容置在收容部内， 且连接端延伸并穿过第二段孔后电连接测井仪器或 相邻缆线的固定端。
进一步地， 阶梯孔在收容部和第二段孔之间还设有一个过渡部， 过渡部的孔径均 小于收容部和第二段孔的孔径， 过渡部与收容部及第二段孔之间均形成有台阶面， 两 台阶面之间设有一贯穿两个台阶面的通道， 折叠部抵靠在其中一个台阶面上， 且连接 端穿过通道后延伸至第二段孔。
进一步地， 每一第二钻杆的第二端延伸形成一个连接部， 每一第一钻杆设有一个 连接口， 连接部固定在连接口内。
进一步地， 连接部设有外螺纹， 连接口设有内螺纹， 连接部和连接口通过螺纹连 接。
进一步地， 连接部的外壁面和连接口的内壁面均为倾斜面。
进一步地， 每一个缆线的固定端和连接端均设有对接装置， 每一缆线之间通过对 接装置对接或断幵。
附图说明
图 1 是本发明实施例提供的随钻测井的信息传输装置的部分机构示意图； 以及 图 2 是图 1 中的部分机构示意图。
具体实施方式
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明实施方 式作进一步地详细描述。
参见图 1， 本发明实施例提供了一种随钻测井的信息传输装置， 该随钻测井的信息传 输装置包括空心钻杆 1 和设置在空心钻杆内的至少一根缆线 2。 其中， 钻杆 1 连接在 地面设备上。 该缆线 2 的一端电连接测井仪器（图未示） ， 缆线 2 的另外一端电连接 地面上的地面设备（图未示）， 从而将测井仪器获得的井下地层的各种信息通过线缆 2 传输到地面设备， 以供工作人员分析判断正在钻遇地层的地质情况和工程情况， 而 适时地调整钻进方向， 控制最有利的井眼轨迹。 请结合参照图 2， 每一根缆线 2 包括固定端 21、与该固定端 21 相对的连接端 22 及连 接 15 固定端 21 和连接端 22 的折叠部 23， 优选地， 该折叠部 23 为螺旋状， 即是由缆 线 2 卷绕而成， 以增加缆线 2 的拉伸弹性， 便于自由的拉伸该缆线 2。 在本实施方式 中， 连接端 22 上设有对接装置 3， 以便于将该缆线 2 与相邻缆线 2 的固定端 21 或者 测井仪器电连接。固定端 21可选择地固定在空心钻杆 1 内或者和相邻缆线 2 的连接端 22 连接， 优选的， 该固定端 21 上也设有对接装置 3， 从而通过该对接装置 3 固定在 空心钻杆 1 内。
空心钻杆 1 包括相互间隔拼接的至少一个第一钻杆件 10 和至少一个第二钻杆件
11。
每一个第一钻杆件 10 的第一端处设有一个连接口 102, 在本实施方式中， 该连接 口 102的内壁设有螺纹。第一钻杆件 10 的第二端处延伸形成一个和相邻的第二钻杆件 11 固定的卡隼 104。在其它实施方式中， 该卡隼 104 上也可以设有螺纹， 以便于和相 邻的第二钻杆件 11螺纹连接。 每一个第一钻杆件 10 的轴线处还设有一个贯穿该连接 口 102 和卡隼 104 的通孔 106， 以便于缆线 2 通过。
每一个第二钻杆件 11 包括第一端和与第一端相对的第二端。 第二钻杆件 11 的第 二端延伸形成一个连接部 111， 优选的， 该连接部 111 上设有螺纹， 从而与相邻的第 一钻杆件 10 的连接口 102 螺纹连接。在其它实施方式中， 每一个第二钻杆件 11 的连 接部 111 与相邻的第一钻杆件 10 的连接口 102 之间也可以是卡接、 过盈配合等连接 方式连接。 每一个第二钻杆件 11 沿着轴线设有一个贯穿第二钻杆 11 的第一端和第 二端的阶梯孔 113。该阶梯孔 113包括贯穿第二钻杆件 11 的第一端的第一段孔 115、倾 斜连接该第一段孔 115 的收容部 117、 连接收容部 117 的过渡部 118 及连接并贯穿第 二钻杆件 11 的第二端的第二段孔 119。
第一段孔 115 的截面形状为喇叭形，其靠近第二钻杆 11 的第一端处的孔径较大， 以便于从第一段孔 115 内装入缆线 2，并将缆线 2 的固定端 21 可选择地固定在该第一 段孔 115 的内壁， 优选的， 该第一段孔 115 的内壁设有固定孔或者装置接头， 从而将 缆线 2 的固定端 21 固定。 且该第一段孔 115 内还可固定插入第一钻杆件 11 的卡隼 104。过渡部 118 位于收容部 117 和第二段孔 119 之间， 且过渡部 118 的孔径均小于 收容部 117和第二段孔 119 的孔径， 从而过渡部 118 与收容部 U7 及第二段孔 119 之 间均形成有台阶面 116。空心钻杆 1 还设有一个贯穿这两个台阶面 1 16 的通道 114。缆 线 2 的折叠部 23 容置在收容部 117 内， 且使缆线 2 的连接端 22 穿过通道 114后位于 第二段孔 119， 这样， 在第二段孔 119 内拉缆线 2， 可使缆线伸长， 以方便使用。并且， 在此使用过程中， 折叠部 23 靠近连接端 22 的一端始终抵靠在其中的一个台阶面 116 上， 以防止缆线 2 在拉伸的过程中打结或者紊乱， 并也有助于防止缆线 2 从第二钻杆 件 11 中滑落。在其它实施方式中， 也可以不用设置过渡部 118 和通道 114， 而是直接 使连接端 22 自收容部 117 出来后直接容置在第二段孔 119 内。
优选的， 为了便于安装， 上述每一个第一钻杆件 10 的卡隼 104 的外壁面、每一个 第二钻杆件 11 的连接部 111 的外壁面及每一个第一钻杆件 10 的连接口 102 的内壁 面均倾斜设置。
请再次参照图 1，使用本发明的随钻测井的信息传输装置时，先将每一根缆线 2 固 定安装在对应的第二钻杆件 11 内；再将每一个第二钻杆件 11 的连接部 1 Π 固定在对 应的第一钻杆件 10 的连接口 102 内，且拉伸并使每一根缆线 2 的连接端 22 贯穿对应 的第一钻杆件 10 的 20 通孔 106 后， 连接在下一个相邻第二钻杆件 11 的缆线 2 的固 定端 21 或者测井仪器上。其中， 靠近地面设备处的缆线 2 的固定端 21 固定在对应的 第二钻杆件 11 的第一段孔 115 的内壁。
这样， 根据井下到地面的距离， 将上述至少一个第一钻杆件 10 和至少一个第二 钻杆件 11 间隔交错地拼接成钻杆 1，且第一钻杆件 10 的通孔 106 和第二钻杆件 11 的 阶梯孔 113 并接后形成了一个供缆线 2 穿过的通道，将至少一个缆线 2 和测井仪器连 接好， 以使测井仪器、 缆线 2、 最靠近地面的第二钻杆 11 及地面设备形成一个循环电 路， 从而将测井仪器测得的信息通过电信号传输至地面， 供地面工作者使用， 传输速 度快。
综上所述， 本发明实施例所述的随钻测井的信息传输装置第一钻杆件 10 的通孔 106 和第二钻杆件 11 的阶梯孔 113 并接后形成了一个供缆线 2 穿过的通道， 为缆线 2 提 供了保护， 克服了井底套管和复杂工况对信息传输的干扰和影响， 提高了传输的可靠 性。 并且， 本发明随钻测井的信息传输装置直接利用缆线 2 进行信息数据传输， 结构 简单且传输速度快。
工业实用性
本发明克服了井底套管和复杂工况对信息传输的干扰、影响及信息传输速度慢的问 题。具体地， 本发明随钻测井的信息传输装置第一钻杆件的通孔和第二钻杆件的阶梯 孔并接后形成了一个供缆线穿过的通道， 为缆线提供了保护， 克服了并底套管和复 杂工况对信息传输的干扰和影响， 提高了传输的可靠性。 并且， 本发明随钻测井的信 息传输装置直接利用缆线进行信息数据传输， 结构简单且传输速度快。

Claims

权利要求书
1、 一种随钻测井的信息传输装置， 其包括电连接于地面设备上的空心钻杆和至少一 根缆线， 其特征在于， 所述钻杆包括互间隔拼接的至少一个第一钻杆件和至少一个第 二钻杆件； 所述第一钻杆件包括一个通孔， 所述第二钻杆件包括一个阶梯孔； 每一根所述缆线包括固定端、 连接端及连接所述固定端和所述连接端的折叠部； 每一个所述缆线通过所述固定端固定在所述阶梯孔内或与相邻缆线的连接端连接； 所述连接端可沿着所述阶梯孔拉伸，并一直拉伸直至穿过所述通孔后电连接测井仪器 或相邻缆线的固定端。
2、 根据权利要求 1 所述的随钻测井的信息传输装置， 其特征在于， 所述折叠部为螺 旋状， 由对应的所述缆线卷绕而成。
3、 根据权利要求 1 所述的随钻测井的信息传输装置， 其特征在于， 所述阶梯孔包括 贯穿所述第二钻杆件的第一端的第一段孔， 所述第一段孔的截面呈喇叭状，所述固定 端固定在所述第一段孔的内壁。
4、 根据权利要求 3 所述的随钻测井的信息传输装置， 其特征在于， 每一所述第一钻 杆件延伸设有一个卡隼， 所述卡隼固定在所述第一段孔内。
5、 据权利要求 3 所述的随钻测井的信息传输装置， 其特征在于， 所述阶梯孔还包括 连接所述第一段孔的收容部和贯穿所述第二钻杆件的第二端的第二段孔，所述折叠部 容置在所述收容部内，且所述连接端延伸并穿过所述第二段孔后电连接测井仪器或相 邻缆线的固定端。
6、 根据权利要求 5 所述的随钻测井的信息传输装置， 其特征在于， 所述阶梯孔在所 述收容部和所述第二段孔之间还设有一个过渡部，所述过渡部的孔径均小于所述收容 部和所述第二段孔的孔径，所述过渡部与所述收容部及所述第二段孔之间均形成有台 阶面， 所述两台阶面之间设有一贯穿所述两个台阶面的通道， 所述折叠部抵靠在所述 其中一个台阶面上， 且所述连接端穿过所述通道后延伸至所述第二段孔。
7、 根据权利要求 5 所述的随钻测井的信息传输装置， 其特征在于， 每一所述第二钻 杆的第二端延伸形成一个连接部， 每一所述第一钻杆设有一个连接口，所述连接部固 定在所述连接口内。
8、 根据权利要求 7 所述的随钻测井的信息传输装置， 其特征在于， 所述连接部设有 外螺纹， 所述连接口设有内螺纹， 所述连接部和所述连接口通过螺紋连接。
9、 根据权利要求 7 所述的随钻测井的信息传输装置， 其特征在于， 所述连接部的外 壁面和所述连接口的内壁面均为倾斜面。
10、根据权利要求 1 所述的随钻测井的信息传输装置， 其特征在于， 每一个所述缆线 的所述固定端和所述连接端均设有对接装置，每一所述缆线之间通过所述对接装置对 接或断开。
PCT/CN2013/000713 2012-07-20 2013-06-18 随钻测井的信息传输装置 Ceased WO2014012349A1 (zh)

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