WO2016150008A1 - Drilling rod assembly for filtering drilling fluid - Google Patents
Drilling rod assembly for filtering drilling fluid Download PDFInfo
- Publication number
- WO2016150008A1 WO2016150008A1 PCT/CN2015/080590 CN2015080590W WO2016150008A1 WO 2016150008 A1 WO2016150008 A1 WO 2016150008A1 CN 2015080590 W CN2015080590 W CN 2015080590W WO 2016150008 A1 WO2016150008 A1 WO 2016150008A1
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- WO
- WIPO (PCT)
- Prior art keywords
- filter
- convex portion
- drill pipe
- wall
- liquid inlet
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
Definitions
- the outer diameter of the carrier ring 5 is larger than the outer diameter of the first convex portion 231 and the outer diameter of the lock ring 6, that is, the carrier ring 5 has a radial protrusion with respect to the first convex portion 231 and the lock ring 6.
- the bump 51 includes a top case 12 and a lower case 13 which are engaged with each other, and the block 51 is sandwiched and fixed between the upper case 12 and the lower case 13. Specifically, the upper case 12 and the lower case 13 are connected The projections and the grooves which are alternately fitted to each other are matched and fastened together, and the projections 51 extend into the grooves of the lower casing 13, and the projections of the upper 12 shells are pressed against the projections 51.
Abstract
Disclosed is a drilling rod assembly for filtering a drilling fluid. The drilling rod assembly comprises a hollow shell (1) and a filter (2) arranged in the shell. The upper end of the shell is provided with a first fluid inlet (11) which is used for the inflow of the drilling fluid. A plurality of filtration pores (21) are arranged on the filter. An opening of the filter faces downward. An accommodation space (3), which is used for accommodating the drilling fluid before filtering and filtered impurities, is formed between an outer wall of the filter and an inner wall of the shell. The first fluid inlet is in communication with the accommodation space. The filter of the drilling rod assembly stands upside down during use. The drilling fluid firstly enters the accommodation space at the outer periphery of the filter, and then flows into the filter after filtering. The impurities remain in the accommodation space at the outer periphery of the filter, which enlarges the volume of impurity, increases the single-use period of time of the filter in the drilling rod, largely reduces the interruption time for replacing the filter, and improves the economic benefits.
Description
说明书 发明名称：一种用于过滤钻井液的钻杆组件 技术领域 Description: A drill rod assembly for filtering drilling fluids
[0001] 本发明涉及石油天然气钻井装备技术领域， 更具体地说， 涉及一种用于过滤钻 井液的钻杆组件。 [0001] The present invention relates to the field of oil and gas drilling equipment, and more particularly to a drill pipe assembly for filtering drilling fluid.
背景技术 Background technique
[0002] 现有技术的钻井工艺中， 通常在钻杆中放入滤子来过滤掉钻井液中的杂质， 钻 井液的进液口通常设置在上端， 在使用吋， 都将滤子幵口朝上放置于钻杆中， 钻井液会先直接流入滤子内部， 过滤后的杂技会残留在滤子内。 上述现有技术 的设计方式， 由于滤子容易掉落， 因此其内部可容纳杂质的安全使用许可量是 比较小的， 使滤子单次在钻井中的使用吋长较短； 而且钻井液流入滤子内， 会 正面直接冲击滤子， 容易导致滤子掉落。 [0002] In the prior art drilling process, a filter is usually placed in the drill pipe to filter out impurities in the drilling fluid, and the inlet of the drilling fluid is usually disposed at the upper end, and the filter is used to rinse the mouth. Placed in the drill pipe upwards, the drilling fluid will flow directly into the filter, and the filtered acrobatics will remain in the filter. According to the above prior art design method, since the filter is easily dropped, the safe use permitability of the inside of the filter can be relatively small, so that the filter is used for a short time in the drilling; and the drilling fluid flows in. Inside the filter, the filter will be directly impacted on the front side, which will easily cause the filter to fall.
技术问题 technical problem
[0003] 本发明的目的在于提供一种用于过滤钻井液的钻杆组件， 解决了现有技术中滤 子内部可容纳杂质的安全使用许可量较小以及滤子容易掉落的问题。 [0003] It is an object of the present invention to provide a drill pipe assembly for filtering a drilling fluid, which solves the problems of a small amount of safe use permits for containing impurities inside the filter and a tendency for the filter to be easily dropped.
问题的解决方案 Problem solution
技术解决方案 Technical solution
[0004] 本发明解决技术问题所采用的技术方案是： 一种用于过滤钻井液的钻杆组件， 包括中空的外壳和设置在所述外壳内的滤子， 所述外壳的上端设有用于流入钻 井液的第一进液口， 所述滤子上幵设有多个滤孔， 所述滤子的幵口朝下， 所述 滤子的外壁与所述外壳的内壁之间形成有用于容纳过滤前的钻井液和过滤后的 杂质的容纳空间， 所述第一进液口与所述容纳空间相连通。 [0004] The technical solution adopted by the present invention to solve the technical problem is: a drill pipe assembly for filtering drilling fluid, comprising a hollow outer casing and a filter disposed in the outer casing, the upper end of the outer casing being provided for a first liquid inlet flowing into the drilling fluid, wherein the filter is provided with a plurality of filter holes, the filter has a cornice facing downward, and an outer wall of the filter and an inner wall of the outer casing are formed for The accommodating space for the drilling fluid before filtration and the filtered impurities is accommodated, and the first liquid inlet is in communication with the accommodating space.
[0005] 在本发明的钻杆组件中， 所述滤子包括滤子主体， 所述滤子主体呈圆锥状， 所 述滤子主体上端的外径小于所述滤子主体下端的外径。 In the drill pipe assembly of the present invention, the filter includes a filter body, and the filter body has a conical shape, and an outer diameter of an upper end of the filter body is smaller than an outer diameter of a lower end of the filter body.
[0006] 在本发明的钻杆组件中， 所述滤子包括用于使所述滤子相对于所述壳体固定安 装的滤子连接部， 所述滤子连接部连接至所述滤子主体的下端。 [0006] In the drill pipe assembly of the present invention, the filter includes a filter connection for fixedly mounting the filter relative to the housing, and the filter connection is connected to the filter The lower end of the body.
[0007] 在本发明的钻杆组件中， 所述滤子连接部依次套设有用于承载所述滤子的承载
环、 以及用于将所述承载环与所述滤子连接部固定连接的锁环， 所述承载环与 所述外壳相连接。 [0007] In the drill pipe assembly of the present invention, the filter connecting portion is sequentially provided with a bearing for carrying the filter. a ring, and a lock ring for fixedly connecting the carrier ring and the filter connecting portion, the carrier ring being connected to the outer casing.
[0008] 在本发明的钻杆组件中， 所述滤子连接部沿轴向依次形成有第一凸部、 第二凸 部和第三凸部， 所述第一凸部与所述滤子主体相连接， 所述第一凸部沿径向向 外分别凸出于所述滤子主体的外周和所述第二凸部， 所述承载环至少套设在所 述第二凸部外周， 所述承载环与所述第一凸部沿轴向相互抵接； 所述锁环套设 在所述第三凸部的外周， 所述锁环与所述第三凸部通过子母扣相互连接。 [0008] In the drill pipe assembly of the present invention, the filter connecting portion is sequentially formed with a first convex portion, a second convex portion, and a third convex portion in the axial direction, the first convex portion and the filter. The main body is connected to each other, and the first convex portion protrudes outwardly from the outer circumference of the filter body and the second convex portion, and the bearing ring is at least sleeved on the outer circumference of the second convex portion. The bearing ring and the first convex portion abut each other in the axial direction; the lock ring is sleeved on an outer circumference of the third convex portion, and the lock ring and the third convex portion pass each other through a female buckle connection.
[0009] 在本发明的钻杆组件中， 所述承载环的外径分别大于所述第一凸部的外径和所 述锁环的外径， 所述承载环具有相对于所述第一凸部和所述锁环沿径向凸出的 凸块， 所述外壳包括相互扣合的上壳和下壳， 所述凸块夹持固定在所述上壳和 下壳之间。 [0009] In the drill pipe assembly of the present invention, the outer diameter of the bearing ring is larger than the outer diameter of the first convex portion and the outer diameter of the lock ring, respectively, and the bearing ring has a first a convex portion and a protrusion protruding from the locking ring in a radial direction, the outer casing including an upper case and a lower case that are engaged with each other, and the protrusion is clamped and fixed between the upper case and the lower case.
[0010] 在本发明的钻杆组件中， 所述外壳内还安装有套设在所述滤子外周的圆筒， 所 述容纳空间介于所述圆筒的内壁与所述滤子的外壁之间， 所述圆筒上幵设有用 于流入钻井液的第二进液口， 所述第二进液口分别与所述第一进液口和容纳空 间相连通。 [0010] In the drill pipe assembly of the present invention, a cylinder sleeved on an outer circumference of the filter is further mounted in the outer casing, and the accommodation space is interposed between an inner wall of the cylinder and an outer wall of the filter. Between the cylinders, a second liquid inlet for flowing into the drilling fluid is disposed, and the second liquid inlet is respectively connected to the first liquid inlet and the receiving space.
[0011] 在本发明的钻杆组件中， 所述第二进液口幵设在所述圆筒的上端， 在所述第二 进液口设置有用于防止所述滤子掉落的防掉部件， 所述滤子通过吊杆吊设在所 述防掉部件下方。 [0011] In the drill pipe assembly of the present invention, the second liquid inlet port is provided at an upper end of the cylinder, and the second liquid inlet port is provided with an anti-drop for preventing the filter from falling. a component, the filter is suspended by the boom below the anti-drop member.
[0012] 在本发明的钻杆组件中， 所述防掉部件为连接在所述第二进液口对应的内壁上 的直杆， 所述吊杆为螺钉， 在所述直杆上幵设有与所述螺钉尺寸相匹配的第一 贯穿孔， 所述滤子的上端幵设有与所述第一贯穿孔相互对应的第二贯穿孔， 所 述螺钉穿过所述第二贯穿孔和第一贯穿孔， 所述螺钉通过螺母分别与所述直杆 和所述滤子锁紧连接。 [0012] In the drill pipe assembly of the present invention, the anti-drop member is a straight rod connected to an inner wall corresponding to the second liquid inlet, the boom is a screw, and the rod is arranged on the straight rod a first through hole matching the size of the screw, wherein the upper end of the filter is provided with a second through hole corresponding to the first through hole, and the screw passes through the second through hole and a first through hole, wherein the screw is tightly coupled to the straight rod and the filter by a nut.
[0013] 在本发明的钻杆组件中， 所述圆筒的外壁与所述外壳的内壁紧密贴合。 [0013] In the drill rod assembly of the present invention, the outer wall of the cylinder closely fits the inner wall of the outer casing.
发明的有益效果 Advantageous effects of the invention
有益效果 Beneficial effect
[0014] 实施本发明的用于过滤钻井液的钻杆组件， 具有以下有益效果： 本发明的钻杆 组件的滤子倒立使用， 钻井液首先进入滤子外周的容纳空间， 经过过滤后流进
滤子内， 杂质残留在滤子外周的容纳空间内， 扩大了杂质的容积， 提高了滤子 在钻杆中单次的使用吋长， 大大减少了更换滤子的中断吋间， 提高经济效益； 同吋减小了钻井液流对滤子的正面冲击力， 降低了滤子掉落的可能性， 而且倒 立使用滤子， 椎体结构的抗压能力替代抗拉能力， 使结构更稳固； 在外壳内壁 与滤子之间设置有圆筒， 可以隔幵钻杆内壁和钻井液流对冲， 防止高压液流对 钻杆的直接冲刷， 延长钻杆的使用寿命。 [0014] The drill rod assembly for filtering the drilling fluid of the present invention has the following beneficial effects: The filter of the drill rod assembly of the present invention is used upside down, and the drilling fluid first enters the accommodating space outside the filter, and flows through the filter. In the filter, impurities remain in the accommodation space outside the filter, which enlarges the volume of impurities, improves the single use length of the filter in the drill pipe, greatly reduces the interruption of the filter replacement, and improves economic benefits. The same side reduces the frontal impact force of the drilling fluid on the filter, reduces the possibility of the filter falling, and uses the filter in inverted state, the compressive capacity of the vertebral structure replaces the tensile capacity, and the structure is more stable; A cylinder is arranged between the inner wall of the outer casing and the filter to block the inner wall of the drill pipe and the drilling fluid flow, prevent direct erosion of the drill pipe by the high pressure liquid flow, and prolong the service life of the drill pipe.
对附图的简要说明 Brief description of the drawing
附图说明 DRAWINGS
[0015] 图 1为本发明的用于过滤钻井液的钻杆组件的结构示意图。 1 is a schematic structural view of a drill pipe assembly for filtering drilling fluid according to the present invention.
本发明的实施方式 Embodiments of the invention
[0016] 下面结合附图和实施例， 对本发明的用于过滤钻井液的钻杆组件的结构作进一 步说明： [0016] The structure of the drill pipe assembly for filtering drilling fluid of the present invention will be further described below with reference to the accompanying drawings and embodiments:
[0017] 在本发明的描述中， 需要理解的是， 术语"中心"、 "纵向"、 "横向"、 "上"、 "下 "、 "前"、 "后"、 "左"、 "右"、 "竖直"、 "水平"、 "顶"、 "底"、 "内"、 "外"、 "顺吋 针"、 "逆吋针"等指示方位或位置关系为基于附图所示的方位或位置关系， 仅是 为了便于描述本发明和简化描述， 而不是指示或暗示所指的装置或元件必须具 有特定的方位、 以特定的方位构造和操作， 因此不能理解为对本发明的限制。 [0017] In the description of the present invention, it is to be understood that the terms "center", "vertical", "transverse", "upper", "lower", "front", "back", "left", "right" The orientation or positional relationship of "," "vertical", "horizontal", "top", "bottom", "inside", "outer", "shun", "reverse", etc. is based on the figure The orientation or positional relationship is merely for the purpose of describing the present invention and the description of the invention, and is not intended to indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus is not to be construed as limiting the invention. .
[0018] 如图 1所示， 一种用于过滤钻井液的钻杆组件， 包括中空的外壳 1和设置在外壳 1内的滤子 2， 外壳 1的上端设有用于流入钻井液的第一进液口 11， 滤子 2的一端 幵口且朝下， 在滤子 2的侧壁和顶壁上均幵设有多个滤孔 21， 滤子 2的外壁与外 壳 1的内壁之间形成有用于容纳过滤前的钻井液和过滤后的杂质的容纳空间 3， 第一进液口 11与容纳空间 3相连通， 通过这样设计相当于使滤子倒立使用， 钻井 液首先进入滤子外周的容纳空间， 然后经过过滤后流进滤子内， 杂质残留在滤 子外周的容纳空间内， 扩大了杂质的容积， 提高了滤子在钻杆中单次的使用吋 长， 大大减少了更换滤子的中断吋间， 提高经济效益； 同吋减小了钻井液流对 滤子的正面冲击力， 降低了滤子掉落的可能性， 而且倒立使用滤子， 椎体结构 的抗压能力替代抗拉能力， 使结构更稳固。 在其它实施例中， 外壳 1内还可以安
装有套设在滤子 2外周的圆筒 4， 容纳空间 3介于圆筒 4的内壁与滤子 2的外壁之间 ， 其中圆筒 4的外壁优选与外壳 1的内壁紧密贴合， 避免浪费空间， 在圆筒 4上幵 设有用于流入钻井液的第二进液口 41， 第二进液口 41分别与第一进液口 11和容 纳空间 3相连通， 通过这样设计钻井液会直接流入进圆筒内， 通过加设该圆筒， 在钻井液直接进入容纳空间内吋可以防止高压液流对钻杆的直接冲刷， 延长钻 杆的使用寿命。 [0018] As shown in FIG. 1, a drill pipe assembly for filtering drilling fluid includes a hollow outer casing 1 and a filter 2 disposed in the outer casing 1. The upper end of the outer casing 1 is provided with a first flow for flowing drilling fluid. The liquid inlet 11 has one end of the filter 2 and is turned downward, and a plurality of filter holes 21 are formed on the side wall and the top wall of the filter 2, and an outer wall of the filter 2 and the inner wall of the outer casing 1 are formed. There is an accommodating space 3 for accommodating the drilling fluid before filtration and the filtered impurities. The first liquid inlet 11 communicates with the accommodating space 3, and the design is equivalent to the use of the filter upside down, and the drilling fluid first enters the periphery of the filter. The accommodating space is then filtered and then flows into the filter. The impurities remain in the accommodating space outside the filter, which enlarges the volume of the impurities, improves the single use length of the filter in the drill pipe, and greatly reduces the replacement filter. The interruption of the child increases the economic benefit; the same reduces the frontal impact of the drilling fluid on the filter, reduces the possibility of the filter falling, and uses the filter to replace the pressure resistance of the vertebral structure. Tensile strength makes the structure more stable. In other embodiments, the housing 1 can also be mounted The cylinder 4 is disposed on the outer circumference of the filter 2, and the accommodating space 3 is interposed between the inner wall of the cylinder 4 and the outer wall of the filter 2, wherein the outer wall of the cylinder 4 preferably closely fits the inner wall of the outer casing 1 to avoid Waste space, the cylinder 4 is provided with a second liquid inlet 41 for flowing into the drilling fluid, and the second liquid inlet 41 is respectively connected with the first liquid inlet 11 and the accommodating space 3, and the drilling fluid is designed by this way. Directly flowing into the cylinder, by adding the cylinder, the drilling fluid directly enters the accommodating space, which can prevent the high-pressure liquid flow from directly scouring the drill pipe and prolong the service life of the drill pipe.
[0019] 其中滤子 2包括相互连接的滤子主体 22和滤子连接部 23， 滤孔 21幵设在滤子主 体 22上， 滤子连接部 23设置在滤子 2的幵口端， 即滤子 2的下端， 滤子 2的整体通 过滤子连接部 23固定安装在外壳 1内。 滤子主体 22和滤子连接部 23之间可以通过 焊接等方式连接， 也可以一体成型。 [0019] wherein the filter 2 includes a filter body 22 and a filter connecting portion 23 which are connected to each other, the filter hole 21 is disposed on the filter body 22, and the filter connecting portion 23 is disposed at the mouth end of the filter 2, that is, At the lower end of the filter 2, the entirety of the filter 2 is fixedly mounted in the outer casing 1 through the filter connecting portion 23. The filter main body 22 and the filter connecting portion 23 may be connected by welding or the like, or may be integrally formed.
[0020] 滤子主体 22呈圆锥状， 滤子主体 22上端的外径小于滤子主体 22下端的外径， 进 而使容纳空间 3的容积更大， 且方便钻井液的流入。 [0020] The filter body 22 has a conical shape, and the outer diameter of the upper end of the filter body 22 is smaller than the outer diameter of the lower end of the filter body 22, thereby making the volume of the accommodating space 3 larger and facilitating the inflow of the drilling fluid.
[0021] 滤子连接部 23依次套设有用于承载滤子的承载环 5、 以及用于将承载环 5与滤子 连接部 23固定连接的锁环 6， 其中承载环 5与外壳 1相连接。 以下具体说明滤子连 接部 23与承载环 5、 锁环 6之间的结构关系， 但本发明的保护范围不限于此， 只 要通过锁环 6将承载环 5锁在锁环 6与滤子 2锁连在一起即可。 [0021] The filter connecting portion 23 is sequentially sleeved with a carrier ring 5 for carrying the filter, and a lock ring 6 for fixedly connecting the carrier ring 5 and the filter connecting portion 23, wherein the carrier ring 5 is connected to the outer casing 1. . The structural relationship between the filter connecting portion 23 and the carrier ring 5 and the lock ring 6 is specifically described below, but the scope of protection of the present invention is not limited thereto, as long as the carrier ring 5 is locked to the lock ring 6 and the filter 2 by the lock ring 6. The locks can be connected together.
[0022] 具体地， 滤子连接部 23沿轴向从上至下依次形成有第一凸部 231、 第二凸部 232 和第三凸部 233， 其中第一凸部 231与滤子主体 22相连接， 第一凸部 231沿径向向 外分别凸出于滤子主体 22的外周和第二凸部 232， 在本实施例中， 承载环 5的结 构呈阶梯状且同吋与第一凸部 231和第二凸部 232相匹配， 承载环 5同吋套设在第 一凸部 231和第二凸部 232的外周， 承载环 5的阶梯位置与第一凸部 231沿轴向相 互抵接， 即与第一凸部 231的下表面相抵接。 在其它实施例中， 承载环 5结构为 单一的环状， 且套设在第二凸部 232的外周。 [0022] Specifically, the filter connecting portion 23 is formed with a first convex portion 231, a second convex portion 232, and a third convex portion 233 in order from the top to the bottom in the axial direction, wherein the first convex portion 231 and the filter body 22 The first protrusions 231 are respectively protruded outwardly from the outer periphery of the filter body 22 and the second protrusions 232. In this embodiment, the structure of the carrier ring 5 is stepped and the same as the first The convex portion 231 and the second convex portion 232 are matched, and the bearing ring 5 is sleeved on the outer circumference of the first convex portion 231 and the second convex portion 232, and the stepped position of the bearing ring 5 and the first convex portion 231 are mutually axially mutually Abutting, that is, abutting against the lower surface of the first convex portion 231. In other embodiments, the carrier ring 5 is configured as a single ring and is sleeved on the outer circumference of the second protrusion 232.
[0023] 锁环 6套设在第三凸部 233的外周， 锁环 6与第三凸部 233通过子母扣相互连接， 也就是锁环 6与滤子 2相互固定， 进而将承载环 5锁定在滤子 2上。 [0023] The lock ring 6 is sleeved on the outer circumference of the third convex portion 233, and the lock ring 6 and the third convex portion 233 are connected to each other through the female buckle, that is, the lock ring 6 and the filter 2 are fixed to each other, and then the bearing ring 5 is further fixed. Locked on the filter 2.
[0024] 承载环 5的外径大于第一凸部 231的外径和锁环 6的外径， 也就是说承载环 5具有 相对于第一凸部 231和锁环 6沿径向凸出的凸块 51， 外壳 1包括相互扣合的上壳 12 和下壳 13， 凸块 51夹持固定在上壳 12和下壳 13之间。 具体地上壳 12和下壳 13通
过相互交错吻合的凸出部和凹槽实现匹配扣合在一起， 凸块 51伸进下壳 13的凹 槽内， 上 12壳的凸出部抵压在凸块 51上。 [0024] The outer diameter of the carrier ring 5 is larger than the outer diameter of the first convex portion 231 and the outer diameter of the lock ring 6, that is, the carrier ring 5 has a radial protrusion with respect to the first convex portion 231 and the lock ring 6. The bump 51 includes a top case 12 and a lower case 13 which are engaged with each other, and the block 51 is sandwiched and fixed between the upper case 12 and the lower case 13. Specifically, the upper case 12 and the lower case 13 are connected The projections and the grooves which are alternately fitted to each other are matched and fastened together, and the projections 51 extend into the grooves of the lower casing 13, and the projections of the upper 12 shells are pressed against the projections 51.
[0025] 在本实施例中， 在圆筒 4上还设有用于防止的滤子 2掉落的防掉部件 7， 滤子 2通 过吊杆 8吊设在防掉部件 7下方。 在本实施例中， 其中第二进液口 41幵设在圆筒 4 的上端， 在第二进液口 41所对应的内壁上连接有至少一直杆， 作为防掉部件 7， 在本实施例中， 第二进液口 41所对应的内壁上连接有两根相互交叉的直杆， 吊 杆 8为螺钉， 在两个直杆交叉的中心位置幵设有与螺钉尺寸相匹配的第一贯穿孔 10， 滤子 2的上端幵设有与第一贯穿孔 10相互对应的第二贯穿孔 20， 螺钉依次穿 过第二贯穿孔 20和第一贯穿孔 10， 螺钉通过螺母 9分别与直杆和滤子 2锁紧连接 。 在其它实施例中直杆也可以仅有一个或三个、 四个， 当为多个吋交叉设置。 在其它实施例中， 防掉部件 7不限于直杆， 也可以是其它各种形状的防掉部件， 如可以穿插进螺钉的圆环以及将圆环连接至圆筒壁上的连接杆等。 在其它实施 例中， 吊杆 8还可以是螺栓， 或者吊杆 8是圆杆， 圆杆与防掉部件 7之间通过子母 扣相连接。 In the present embodiment, the cylinder 4 is further provided with a preventing member 7 for preventing the filter 2 from falling, and the filter 2 is suspended from the preventing member 7 via the hanger 8. In this embodiment, the second liquid inlet 41 is disposed at the upper end of the cylinder 4, and at least the upper rod is connected to the inner wall corresponding to the second liquid inlet 41 as the anti-drop member 7, in this embodiment. The inner wall corresponding to the second liquid inlet 41 is connected with two straight rods which are crossed with each other, and the boom 8 is a screw. At the center position where the two straight rods intersect, the first one is matched with the screw size. The through hole 10, the upper end of the filter 2 is provided with a second through hole 20 corresponding to the first through hole 10, the screw sequentially passes through the second through hole 20 and the first through hole 10, and the screw passes through the nut 9 and the straight rod respectively It is connected to the filter 2 for locking. In other embodiments, the straight rods may also have only one or three, four, when arranged for multiple turns. In other embodiments, the anti-drop member 7 is not limited to a straight rod, but may be other various shapes of anti-drop members, such as a ring that can be inserted into the screw and a connecting rod that connects the ring to the cylinder wall. . In other embodiments, the boom 8 may also be a bolt, or the boom 8 is a round rod, and the round rod is connected to the anti-drop member 7 by a female snap.
[0026] 应当理解的是， 对本领域普通技术人员来说， 可以根据上述说明加以改进或变 换， 所有这些改进或变换都应属于本发明所附权利要求的保护范围之内。
It is to be understood that those skilled in the art can devise modifications or variations in accordance with the above description, all of which are within the scope of the appended claims.
Claims
[权利要求 1] 一种用于过滤钻井液的钻杆组件， 包括中空的外壳 （1) 和设置在所 述外壳 （1) 内的滤子 （2) ， 所述外壳 （1) 的上端设有用于流入钻 井液的第一进液口 （11) ， 所述滤子 （2) 上幵设有多个滤孔 （21) ， 其特征在于， 所述滤子 （2) 的幵口朝下， 所述滤子 （2) 的外壁与 所述外壳 （1) 的内壁之间形成有用于容纳过滤前的钻井液和过滤后 的杂质的容纳空间 （3) ， 所述第一进液口 （11) 与所述容纳空间 （3 ) 相连通。 [Claim 1] A drill pipe assembly for filtering drilling fluid, comprising a hollow outer casing (1) and a filter (2) disposed in the outer casing (1), the upper end of the outer casing (1) being provided There is a first liquid inlet (11) for flowing into the drilling fluid, and the filter (2) is provided with a plurality of filter holes (21), wherein the filter (2) has a mouth facing downward Forming a receiving space (3) for accommodating the drilling fluid before filtration and the filtered impurities between the outer wall of the filter (2) and the inner wall of the outer casing (1), the first liquid inlet ( 11) is in communication with the accommodation space (3).
[权利要求 2] 根据权利要求 1所述的钻杆组件， 其特征在于， 所述滤子 （2) 包括滤 子主体 (22) ， 所述滤子主体 (22) 呈圆锥状， 所述滤子主体 （22) 上端的外径小于所述滤子主体 （22) 下端的外径。 [Claim 2] The drill pipe assembly according to claim 1, wherein the filter (2) comprises a filter body (22), the filter body (22) has a conical shape, and the filter The outer diameter of the upper end of the sub-body (22) is smaller than the outer diameter of the lower end of the filter body (22).
[权利要求 3] 根据权利要求 2所述的钻杆组件， 其特征在于， 所述滤子 （2) 包括用 于使所述滤子 （2) 相对于所述壳体 （1) 固定安装的滤子连接部 （23 ) ， 所述滤子连接部 （23) 连接至所述滤子主体 （22) 的下端。 [Drilling rod assembly according to claim 2, characterized in that the filter (2) comprises means for fixedly mounting the filter (2) relative to the housing (1) A filter connecting portion (23), the filter connecting portion (23) is connected to a lower end of the filter body (22).
[权利要求 4] 根据权利要求 3所述的钻杆组件， 其特征在于， 所述滤子连接部 （23 [Claim 4] The drill pipe assembly according to claim 3, wherein the filter connecting portion (23)
) 依次套设有用于承载所述滤子 （2) 的承载环 （5) 、 以及用于将所 述承载环 （5) 与所述滤子连接部 （23) 固定连接的锁环 （6) ， 所述 承载环 （5) 与所述外壳 （1) 相连接。 a carrier ring (5) for carrying the filter (2), and a locking ring (6) for fixedly connecting the carrier ring (5) with the filter connection (23) The carrier ring ( 5 ) is connected to the outer casing (1).
[权利要求 5] 根据权利要求 4所述的钻杆组件， 其特征在于， 所述滤子连接部 （23 [Claim 5] The drill pipe assembly according to claim 4, wherein the filter connecting portion (23)
) 沿轴向依次形成有第一凸部 （231) 、 第二凸部 （232) 和第三凸部 a first convex portion (231), a second convex portion (232), and a third convex portion are sequentially formed along the axial direction
(233) ， 所述第一凸部 （231) 与所述滤子主体 （22) 相连接， 所述 第一凸部 （231) 沿径向向外分别凸出于所述滤子主体 （22) 的外周 和所述第二凸部 （232) ， 所述承载环 （5) 至少套设在所述第二凸部(233), the first convex portion (231) is connected to the filter body (22), and the first convex portion (231) protrudes outwardly from the filter body (22) The outer circumference and the second protrusion (232), the carrier ring (5) is at least sleeved on the second protrusion
(232) 外周， 所述承载环 （5) 与所述第一凸部 （231) 沿轴向相互 抵接； 所述锁环 （6) 套设在所述第三凸部 （233) 的外周， 所述锁环(232) the outer circumference, the bearing ring (5) and the first convex portion (231) abut each other in the axial direction; the lock ring (6) is sleeved on the outer circumference of the third convex portion (233) , the lock ring
(6) 与所述第三凸部 （233) 通过子母扣相互连接。 (6) The third convex portion (233) is connected to each other by a female snap.
[权利要求 6] 根据权利要求 5所述的钻杆组件， 其特征在于， 所述承载环 （5) 的外 径分别大于所述第一凸部 （231) 的外径和所述锁环 （6) 的外径， 所
述承载环 （5) 具有相对于所述第一凸部 （231) 和所述锁环 （6) 沿 径向凸出的凸块 （51) ， 所述外壳 （1) 包括相互扣合的上壳 （12) 和下壳 （13) ， 所述凸块 （51) 夹持固定在所述上壳 （12) 和下壳 ( 13) 之间。 [Claim 6] The drill pipe assembly according to claim 5, wherein an outer diameter of the bearing ring (5) is larger than an outer diameter of the first convex portion (231) and the lock ring ( 6) outer diameter, The carrier ring (5) has a protrusion (51) protruding radially with respect to the first protrusion (231) and the lock ring (6), and the outer casing (1) includes an upper portion that is engaged with each other The shell (12) and the lower shell (13) are clamped and fixed between the upper shell (12) and the lower shell (13).
根据权利要求 1所述的钻杆组件， 其特征在于， 所述外壳 （1) 内还安 装有套设在所述滤子 （2) 外周的圆筒 （4) ， 所述容纳空间 （3) 介 于所述圆筒 （4) 的内壁与所述滤子 （2) 的外壁之间， 所述圆筒 （4 ) 上幵设有用于流入钻井液的第二进液口 （41) ， 所述第二进液口 ( 41) 分别与所述第一进液口 （11) 和容纳空间 （3) 相连通。 The drill pipe assembly according to claim 1, wherein a casing (4) sleeved on an outer circumference of the filter (2) is further disposed in the outer casing (1), and the receiving space (3) Between the inner wall of the cylinder (4) and the outer wall of the filter (2), the cylinder (4) is provided with a second liquid inlet (41) for flowing into the drilling fluid. The second liquid inlet (41) is in communication with the first liquid inlet (11) and the receiving space (3), respectively.
根据权利要求 7所述的钻杆组件， 其特征在于， 所述第二进液口 （41 ) 幵设在所述圆筒 （4) 的上端， 在所述第二进液口 （41) 设置有用 于防止所述滤子 （2) 掉落的防掉部件 （7) ， 所述滤子 （2) 通过吊 杆 （8) 吊设在所述防掉部件 （7) 下方。 The drill pipe assembly according to claim 7, wherein the second liquid inlet (41) is disposed at an upper end of the cylinder (4), and is disposed at the second liquid inlet (41) There is a preventing member (7) for preventing the filter (2) from falling, and the filter (2) is suspended below the preventing member (7) by a boom (8).
根据权利要求 8所述的钻杆组件， 其特征在于， 所述防掉部件 （7) 为 连接在所述第二进液口 （41) 对应的内壁上的直杆， 所述吊杆 （8) 为螺钉， 在所述直杆上幵设有与所述螺钉尺寸相匹配的第一贯穿孔 （ 10) ， 所述滤子 （2) 的上端幵设有与所述第一贯穿孔 （10) 相互对 应的第二贯穿孔 （20) ， 所述螺钉穿过所述第二贯穿孔 （20) 和第一 贯穿孔 （10) ， 所述螺钉通过螺母 （9) 分别与所述直杆和所述滤子 (2) 锁紧连接。 The drill rod assembly according to claim 8, wherein the anti-drop member (7) is a straight rod connected to an inner wall corresponding to the second liquid inlet (41), the boom (8) a first through hole (10) matching the screw size on the straight rod, and an upper end of the filter (2) is provided with the first through hole (10) a second through hole (20) corresponding to each other, the screw passing through the second through hole (20) and the first through hole (10), the screw passing through the nut (9) and the straight rod and The filter (2) is locked.
根据权利要求 7所述的钻杆组件， 其特征在于， 所述圆筒 （4) 的外壁 与所述外壳 （1) 的内壁紧密贴合。
A drill pipe assembly according to claim 7, characterized in that the outer wall of the cylinder (4) is in close contact with the inner wall of the outer casing (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173227.6 | 2015-03-26 | ||
| CN201520173227.6U CN204691691U (en) | 2015-03-26 | 2015-03-26 | A kind of drill rod assemblies for filtering drilling fluid |
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| Publication Number | Publication Date |
|---|---|
| WO2016150008A1 true WO2016150008A1 (en) | 2016-09-29 |
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| PCT/CN2015/080590 WO2016150008A1 (en) | 2015-03-26 | 2015-06-02 | Drilling rod assembly for filtering drilling fluid |
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| CN (1) | CN204691691U (en) |
| WO (1) | WO2016150008A1 (en) |
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| CN110242225A (en) * | 2019-06-04 | 2019-09-17 | 中国石油集团渤海钻探工程有限公司 | One kind can multiple switching plugging while drilling valve drill rod special filter |
| CN114033324A (en) * | 2021-11-08 | 2022-02-11 | 中国石油大学(华东) | Mechanical oil production wellhead bailing device |
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| US20060065444A1 (en) * | 2004-09-28 | 2006-03-30 | Hall David R | Filter for a Drill String |
| CN200996274Y (en) * | 2006-11-28 | 2007-12-26 | 大庆石油管理局 | Current-limiting filter of drilling bit |
| CN201363100Y (en) * | 2009-03-18 | 2009-12-16 | 中国石化集团胜利石油管理局井下作业公司 | Anti-clogging pup joint for drill rod |
| US20100236833A1 (en) * | 2009-03-17 | 2010-09-23 | Hall David R | Displaceable Plug in a Tool String Filter |
| CN201723187U (en) * | 2010-06-10 | 2011-01-26 | 大庆石油管理局 | Drill bit impurity filter |
| CN203201503U (en) * | 2013-04-19 | 2013-09-18 | 中国海洋石油总公司 | Drilling fluid filter |
| CN203430447U (en) * | 2013-08-21 | 2014-02-12 | 中国石油集团渤海钻探工程有限公司 | Inner side hole type drill pipe filter |
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- 2015-03-26 CN CN201520173227.6U patent/CN204691691U/en active Active
- 2015-06-02 WO PCT/CN2015/080590 patent/WO2016150008A1/en active Application Filing
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| US20060065444A1 (en) * | 2004-09-28 | 2006-03-30 | Hall David R | Filter for a Drill String |
| CN200996274Y (en) * | 2006-11-28 | 2007-12-26 | 大庆石油管理局 | Current-limiting filter of drilling bit |
| US20100236833A1 (en) * | 2009-03-17 | 2010-09-23 | Hall David R | Displaceable Plug in a Tool String Filter |
| CN201363100Y (en) * | 2009-03-18 | 2009-12-16 | 中国石化集团胜利石油管理局井下作业公司 | Anti-clogging pup joint for drill rod |
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