CN114109422B - Guide type push pipe installation construction method - Google Patents
Guide type push pipe installation construction method Download PDFInfo
- Publication number
- CN114109422B CN114109422B CN202010868499.3A CN202010868499A CN114109422B CN 114109422 B CN114109422 B CN 114109422B CN 202010868499 A CN202010868499 A CN 202010868499A CN 114109422 B CN114109422 B CN 114109422B
- Authority
- CN
- China
- Prior art keywords
- reamer
- pipe
- machine
- directional drilling
- horizontal directional
- 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.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 66
- 238000009434 installation Methods 0.000 title claims abstract description 49
- 238000005553 drilling Methods 0.000 claims abstract description 93
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000013461 design Methods 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims description 51
- 238000012546 transfer Methods 0.000 claims description 19
- 230000009467 reduction Effects 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 244000208734 Pisonia aculeata Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1066—Making by using boring or cutting machines with fluid jets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1086—Drives or transmissions specially adapted therefor
Abstract
The embodiment of the application discloses a guiding type push pipe installation construction method, which belongs to the technical field of pipeline non-excavation. The pipe jacking machine head in direct pipe laying construction can be replaced by the conical reamer by combining the horizontal directional drilling machine with the pipe pushing machine, and the horizontal directional drilling machine is controlled to conduct guide hole construction according to a design curve. After the guide hole construction is completed, a subsequent reaming direction track is provided for the horizontal directional drilling machine. When the pipeline is laid, the pipe pushing machine provides reaming weight and thrust for pipeline installation, so that one-time reaming back-dragging of the horizontal directional drill is realized, and the pipeline installation is completed. The installation method is wide in application range, and especially suitable for the weakly cemented bottom layer difficult to construct in horizontal directional drilling, and the installation construction of the pipeline can be realized at the terminal.
Description
Technical Field
The embodiment of the application relates to the technical field of pipeline non-excavation, in particular to a guiding type push pipe installation construction method.
Background
In the field of large-scale pipeline laying, the direct pipe laying construction technology is widely applied.
In one engineering application scenario, the direct pipe laying construction technique includes the following procedures. The pipe pushing machine provides pushing force through a pipeline connected with the pipe pushing machine head. Because the pipeline with larger diameter is placed in the construction process, the hole is difficult to form at one time. Therefore, the direct pipe laying technique requires multiple replacement of the cutting bit and cleaning of the cuttings to ultimately expand the diameter of the cavity to the diameter required for the pipe.
In the application scene, the time cost and the energy cost of laying the trenchless pipeline are high, and the working procedure is complex.
Disclosure of Invention
The embodiment of the application provides a guiding type push pipe installation construction method, which can solve the problems of higher time cost, nuclear energy cost and more complex working procedures of non-excavation pipeline laying. The technical scheme is as follows:
a guided push pipe installation construction method applied to a push pipe installation system, the push pipe installation system comprising a horizontal directional drilling machine (1), a directional drilling machine control room (2), a directional drilling machine power station (3), a mud subsystem (4), a drill rod (5), a guide reamer (6), a conical reamer (7), a transfer case (8), a drag reduction sleeve (9), a pipeline (10), a push pipe machine control room (11), a push pipe machine power station (12), a ground anchor (13) and a push pipe machine (14), the method comprising:
controlling the horizontal directional drilling machine (1) to perform guide hole construction according to a design curve;
when the guide hole is penetrated, the drill rod (5) and the guide reamer (6) are connected;
-coupling the pilot reamer (6) and the under-reamer (7);
-coupling the under-reamer (7) and the transfer case (8);
coupling the transfer case (8) with the pipeline (10) through the drag reduction sleeve (9), wherein the drag reduction sleeve (9) is used for sleeving the periphery of the pipeline (10) and reducing friction resistance through slurry;
-passing the pipe (10) through the push tube machine (14) at the unearthed end;
controlling the pipe pushing machine (14) to apply thrust to the pipeline (10);
controlling the horizontal directional drilling machine (1) to provide cutting torque to the conical reamer (7) through the drill rod (5);
controlling the rotary cutting of the material in the formation by the conical reamer (7);
primary reaming is achieved by the pilot reamer (6) and the pilot reamer (7) is reamed according to the track of the pilot hole;
when the under-reamer (7) finishes under-reaming on the track of the pilot hole, the pipe (10) is installed in a tubular space where the under-reamer (7) is expanded.
Optionally, the construction method is characterized by further comprising:
obtaining a unit travel M of the horizontal directional drilling machine (1), wherein M is a positive number;
obtaining a unit travel N of the tube pushing machine (14), wherein N is a positive number;
according to the unit travel M of the horizontal directional drilling machine (1) and the unit travel N of the pipe pushing machine (14), the travel of the horizontal directional drilling machine (1) is matched with the travel of the pipe pushing machine (14).
Optionally, the unit travel M according to the horizontal directional drilling machine (1) and the unit travel N of the tube pushing machine (14) are such that the travel of the horizontal directional drilling machine (1) and the travel of the tube pushing machine (14) are matched, comprising:
obtaining a target time length T required by a unit travel N of the pipe pushing machine (14);
and adjusting the travel of the horizontal directional drilling machine (1) in the target duration T to N.
Optionally, when the under-reamer (7) finishes under-reaming on the track of the pilot hole, installing the pipe (10) in a tubular space where the under-reamer (7) is expanded, comprising:
when the under-reamer (7) advances by a unit stroke N under the action of the push-tube machine (14), the horizontal directional drilling machine (1) stops applying a back drag force and a cutting torque to the pilot reamer (6) and the under-reamer (7);
controlling the pipe clamping device of the pipe pushing machine (14) to release the pipeline (10).
Optionally, said primary reaming by said pilot reamer (6) and guiding said under-reamer (7) to follow the trajectory of said pilot hole comprises:
-effecting primary reaming by means of said pilot reamer (6);
flushing away cuttings through a nozzle of a cutting bit of the pilot reamer (6);
-guiding the under-reamer (7) by the guiding reamer (6) to ream in accordance with the trajectory of the guiding hole;
cuttings are flushed away by the nozzle of the cutting bit of the under-reamer (7).
Optionally, the construction method further includes:
determining a geological condition of the installation of the pipeline (10), wherein the geological condition is used for indicating the pore-forming difficulty level of a stratum;
based on the geological conditions, the shape of the cutting bit of the under-reamer (7) is determined, the shape of the cutting bit including cutting and tooth wheel type.
Optionally, the outer shape of the under-reamer (7) is a stepped shape.
Optionally, flushing fluid enters the cutting part from the top end of the drill rod (5) and flows out of a gap between the drill rod (5) and the guide hole.
Optionally, the push tube machine (14) provides a first weight on bit for the under-reamer (7);
the horizontal directional drilling machine (1) provides a second weight-on-bit for the conical reamer (7);
wherein the sum of the first weight-on-bit and the second weight-on-bit is the total weight-on-bit of the under-reamer (7).
Optionally, the passing the pipe (10) through the pipe pushing machine (14) at the unearthed end comprises:
-placing the pipe (10) at the unearthed end into a pipe clamping device of the pipe pushing machine (14);
the pipe clamping device is connected with a main pushing cylinder of a pipe pushing machine (14);
a control circuit for communicating the tube pushing machine (14) with the tube pushing machine control chamber (11);
and an oil pipeline which is communicated between the pipe pushing machine (14) and the pipe pushing machine power station (12).
The beneficial effects that technical scheme that this application embodiment provided can include:
the pipe jacking machine head in direct pipe laying construction can be replaced by the conical reamer by combining the horizontal directional drilling machine with the pipe pushing machine, and the horizontal directional drilling machine is controlled to conduct guide hole construction according to a design curve. After the guide hole construction is completed, a subsequent reaming direction track is provided for the horizontal directional drilling machine. When the pipeline is laid, the pipe pushing machine provides reaming weight and thrust for pipeline installation, so that one-time reaming back-dragging of the horizontal directional drill is realized, and the pipeline installation is completed. The installation method is wide in application range, and especially suitable for the weakly cemented bottom layer difficult to construct in horizontal directional drilling, and the installation construction of the pipeline can be realized at the terminal.
Drawings
In order to more clearly describe the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic diagram of a guiding push pipe construction principle and equipment composition provided in an embodiment of the present application;
fig. 2 is a flowchart of a guided push tube installation construction method provided in an embodiment of the present application;
fig. 3 is a front view of a pilot reamer provided by an embodiment of the present application;
fig. 4 is a front view of a reamer provided in an embodiment of the present application;
fig. 5 is a side view of a reamer provided in an embodiment of the present application.
The respective icon scores referred to in fig. 1 to 4 are:
the drilling machine comprises a horizontal directional drilling machine, a 2-directional drilling machine control room, a 3-directional drilling machine power station, a 4-slurry subsystem, a 5-drill rod, a 6-guide reamer, a 7-conical reamer, an 8-transfer case, a 9-drag reduction sleeve, a 10-pipeline, a 11-push pipe machine control room, a 12-push pipe machine power station, a 13-ground anchor, a 14-push pipe machine, a 15-drill collar, a 16-abrasion-resistant belt, a 17-guide reamer shell, a 18-cutting bit, a 19-conical seal, a 20-drill cuttings guide groove and a 21-conical reamer shell.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
Referring to fig. 1, fig. 1 is a schematic diagram of a guiding push pipe construction principle and a device composition according to an embodiment of the present application. As shown in fig. 1, the push tube mounting system includes: the device comprises a 1-horizontal directional drilling machine, a 2-directional drilling machine control room, a 3-directional drilling machine power station, a 4-slurry subsystem, a 5-drill rod, a 6-guiding reamer, a 7-conical reamer, an 8-transfer case, a 9-drag reduction sleeve, a 10-pipeline, a 11-pipe pushing machine control room, a 12-pipe pushing machine power station, a 13-ground anchor and a 14-pipe pushing machine. The functions of the devices are described as follows:
horizontal directional drilling machine (1): and the device is used for providing torque during the construction of the guide hole and the later reaming.
Directional drilling machine control room (2): apparatus for placing a control horizontal directional drilling machine (1). In one possible way, the horizontal directional drilling machine (1) is a device requiring personnel to participate in control, and the directional drilling machine control room (2) is simultaneously reserved with space for personnel to operate. Schematically, the control room (2) of the directional drilling machine can provide living space for personnel, and is convenient for personnel to stay for a long time. In another possible way, the horizontal directional drilling machine (1) is a device that does not require personnel to participate in the control. In this scenario, the directional drilling machine control room (2) is provided with a monitoring device for monitoring the horizontal directional drilling machine and a maintenance device for maintaining the horizontal directional drilling machine.
Directional drilling machine power station (3): for providing energy support to a horizontal directional drilling machine (1). In one possible way, the directional drilling machine power station (3) provides an oil path to the horizontal directional drilling machine (1) to obtain power from the horizontal directional drilling machine (1). In another possible way, the directional drilling machine power station (3) provides a high voltage circuit to the horizontal directional drilling machine (1) for the horizontal directional drilling machine (1) to draw power using electrical energy.
Mud subsystem (4): including a mud pump and a chamber or pipe through which the mud flows. The mud subsystem is used to flush away cuttings and to cool down the pilot reamer (6) or the cone reamer (7) for the cutting operation site.
Drill rod (5): is arranged as a hollow structure. The hollow structure of the drill rod (5) can guide out slurry or flushing fluid sprayed by the slurry pump to the top end of the drill rod. The mud or flushing fluid will flow out of the gap between the drill rod (5) and the pilot hole.
Pilot reamer (6): for pre-reaming and guiding the reamer path in the formation.
Conical reamer (7): for cutting the formation and for reaming. Through the design of cascaded shape in this application, can make the reaming process once accomplish, reduce the duration of technology and improved reaming efficiency.
Optionally, the weight on bit received on the under-reamer (7) comprises a first weight on bit provided by the push tube machine (14) and a second weight on bit provided by the horizontal directional drilling machine (1).
Transfer case (8): for avoiding rotation of the tube (10) with rotation of the under-reamer (7).
Drag reduction sleeve (9): for providing a slurry jacket for the periphery of the installed pipe (10) to reduce frictional resistance.
Pipeline (10): for pipes installed in the formation. In one example, the diameter of the conduit may be 1016mm, or other sized conduit, as the embodiments of the present application are not limited.
Control room of tube pushing machine (11): control equipment for placing a tube pushing machine (14). In another possible way, the control room (11) of the tube pushing machine can also be used for placing maintenance equipment of the tube pushing machine (14).
Tube pushing power station (12): for powering the push tube machine (14). In one manner, the ejector power station (12) may provide an oil path to the ejector (14) for the ejector (14) to extract power. In another possible way, the pusher power station (12) may also provide electrical power to the pusher (14).
Ground anchor (13): the device is used for anchoring the tube pushing machine (14) so that the reaction force of the tube pushing machine (14) is counteracted during operation, and the tube pushing machine (14) is prevented from generating displacement to influence the tube pushing effect.
Tube pushing machine (14): for pushing the pipe (10) into the tubular space reamed by the under-reamer (7).
Referring to fig. 2, fig. 2 is a flowchart of a guiding push tube installation construction method according to an exemplary embodiment of the present application. The guide type push pipe installation construction method can be applied to the terminal shown in the figure 1. In fig. 2, the guided push tube installation construction method includes:
and 201, controlling the horizontal directional drilling machine (1) to perform guide hole construction according to a design curve.
Step 202, when the guide hole is penetrated, the drill rod (5) and the guide reamer (6) are connected.
Step 203, coupling the pilot reamer (6) and the cone reamer (7).
Illustratively, before coupling the pilot reamer (6) and the tip reamer (7), a constructor may confirm the geological condition before determining the shape of the cutting bit of the tip reamer (7) according to the geological condition. Specifically, a constructor can determine the geological condition of the installation of the pipeline (10), and the geological condition is used for indicating the pore-forming difficulty of the stratum; the shape of the cutting bit of the underreamer (7) is determined according to geological conditions, and the shape of the cutting bit includes cutting type and tooth wheel type.
In another application scenario, the outer shape of the under-reamer (7) is a stepped shape. Illustratively, this shape facilitates one-time expansion of the diameter of the bore to the diameter required for installation of the conduit (10).
Step 204, coupling the cone reamer (7) and the transfer case (8).
Step 205, the transfer case (8) is connected with the pipeline (10) through a drag reducing sleeve (9), and the drag reducing sleeve (9) is used for sleeving on the periphery of the pipeline (10) and reducing friction resistance through slurry.
At step 206, the pipe (10) is passed through the pipe pushing machine (14) at the unearthed end.
In the present application, a constructor can complete the process of passing the pipe (10) through the pipe pushing machine (14) through the following steps. Placing the pipeline (10) into a pipe clamping device of a pipe pushing machine (14) at the soil outlet end; connecting the pipe clamping device with a main pushing cylinder of a pipe pushing machine (14); a control circuit for communicating the tube pushing machine (14) with the tube pushing machine control chamber (11); and an oil pipeline which is communicated between the pipe pushing machine (14) and the pipe pushing machine power station (12).
Step 207, controlling the pipe pushing machine (14) to apply thrust to the pipeline (10).
Step 208, control the horizontal directional drilling machine (1) to provide cutting torque to the reamer (7) through the drill pipe (5).
In step 209, the under-reamer (7) is controlled to rotationally cut material in the formation.
Step 210, primary reaming is achieved by guiding the reamer (6) and guiding the under-reamer (7) to ream in accordance with the trajectory of the pilot hole.
Alternatively, the reaming process may be implemented to achieve primary reaming by guiding the reamer (6); flushing away drill cuttings by means of a nozzle guiding a cutting bit of the reamer (6); guiding the conical reamer (7) to ream according to the track of the guide hole through the guiding reamer (6); cuttings are flushed away by the nozzle of the cutting bit of the underreamer (7).
Step 211, when the under-reamer (7) finishes the reaming on the track of the pilot hole, the pipe (10) is installed in the tubular space where the under-reamer (7) is reaming.
In step 211, the construction step may be replaced by the following construction process. When the conical reamer (7) advances for a unit stroke N under the action of the pipe pushing machine (14), the horizontal directional drilling machine (1) stops applying back traction force and cutting torque to the guiding reamer (6) and the conical reamer (7); the pipe clamping device of the pipe pushing machine (14) is controlled to release the pipeline (10).
Optionally, in one construction method, the method further comprises the step of obtaining a unit travel M of the horizontal directional drilling machine (1), wherein M is a positive number; obtaining a unit travel N of a tube pushing machine (14), wherein N is a positive number; according to the unit travel M of the horizontal directional drilling machine (1) and the unit travel N of the pipe pushing machine (14), the travel of the horizontal directional drilling machine (1) is matched with the travel of the pipe pushing machine (14).
Wherein, the process of the travel matching can be specifically executed to obtain the target duration T required by the unit travel N of the tube pushing machine (14); the travel of the horizontal directional drilling machine (1) in the target duration T is adjusted to N. The target time period T may be a value preset by a designer.
In summary, according to the guided pipe pushing installation construction method provided by the embodiment, the horizontal directional drill and the pipe pushing machine can be combined, the pipe pushing machine head in direct pipe laying construction is replaced by the conical reamer, and the horizontal directional drill is controlled to perform guide hole construction according to a design curve. After the guide hole construction is completed, a subsequent reaming direction track is provided for the horizontal directional drilling machine. When the pipeline is laid, the pipe pushing machine provides reaming weight and thrust for pipeline installation, so that one-time reaming back-dragging of the horizontal directional drill is realized, and the pipeline installation is completed. The installation method is wide in application range, and especially suitable for the weakly cemented bottom layer difficult to construct in horizontal directional drilling, and the installation construction of the pipeline can be realized at the terminal.
In one possible embodiment of the present application, the pipe (10) is described by way of example as having a diameter 1016.
Comprising a horizontal directional drilling machine (1) for providing torque during pilot hole construction and post reaming, a reamer (7) for cutting the formation to effect reaming, a push tube machine (14) for providing a majority of the weight on bit to the reamer and thrust to the pipe installation. In addition, the device also comprises necessary matched equipment such as a guiding reamer (6), a transfer case (8), a directional drilling machine control room (2), a directional drilling machine power station (3), a slurry system (4), a drag reduction sleeve (9), a pipeline (10), a pipe pushing machine control room (11), a pipe pushing machine power station (12), a ground anchor (13), a pipe pushing machine (14) and the like, which are used for the transition of the size aperture.
Taking phi 1016mm pipeline pushing construction as an example, a horizontal directional drilling machine (1) firstly performs guide hole construction according to a design curve according to design requirements, after the guide hole is communicated, a guide reamer (6) is connected with a drill rod (5), the guide reamer (6) is connected with a conical reamer (7), the conical reamer (7) is connected with a transfer case (8), and the transfer case (8) is connected with a phi 1016mm pipeline (10) through a drag reduction sleeve (9).
After the pipe clamping device of the pipe pushing machine (14) is opened at the soil outlet end, the pipe clamping device is placed in a pipeline (10) with the diameter of 1016mm through a lifting appliance, and then the pipe clamping device is connected with a main pushing cylinder of the pipe pushing machine (14). The pipe pushing machine (14) is connected with an oil pipeline and a control circuit with a pipe pushing machine control room (11) and a pipe pushing machine power station (12). After the tube pushing machine (14) is installed, guiding tube pushing construction is started. In the installation and construction process of the phi 1016mm pipeline. The resistance against which the pipe is mounted is mainly provided by the pipe pushing machine (14). The purpose of the pilot reamer (6) is to achieve primary reaming and to direct the rear end reamer (7) to ream in accordance with the trajectory of the pilot hole. The drag reducing sleeve (9) provides a slurry sleeve for the periphery of the installed pipeline (10) to reduce friction resistance.
In construction, the push tube machine (14) and the horizontal directional drilling machine (1) provide weight on bit applied to the conical reamer (7) and overcome frictional resistance to installation of a phi 1016mm pipe (10). The reaction force of the pipe pushing machine (14) is provided by the ground anchor (13). The underreamer (7) rotates cutting reamer with cutting torque from torque provided by a horizontal directional drilling machine (1) transmitted through a drill pipe (5). The mud pump directs mud through the drill pipe (5) into the pilot reamer (6) and the counter-reamer (7) and through the nozzles of the cutting bits (18) of the pilot reamer (6) and the counter-reamer (7) into the bore annulus. Cuttings cut by the underreamer (7) pass through cuttings guide slots (20) and are carried out of the ground by the mud through the annulus between the drill pipe (5) and the pilot hole. The horizontal directional drilling machine (1) is used for reaming and simultaneously maintains a certain pull-back force, and the pipe pushing machine (14) is used for pushing the pipeline (10) into the reamed hole. After a stroke of the pipe pushing machine (14), the drill stops applying a back drag and torque to the pilot reamer (6) and the cone reamer (7), at which time the pipe gripping device of the pipe pushing machine (14) releases the pipe (10) and resets the pipe gripping device ready to begin the next pipe pushing. Wherein, the pipe pushing machine (14) can reach the condition (the pipe pushing machine travel is 5 meters and the drill rod is 9.6 meters) that the horizontal directional drilling machine (1) unloads the drill rod (5 meters) every time pushing is carried out twice. When the horizontal directional drilling machine (1) changes the drill rod (5), the pipe pushing machine (14) stops applying the pushing force. The tube pushing machine (14) also needs to be reset to the maximum stroke to prepare for the next tube pushing. And (3) performing reciprocating circulation in this way until the pipeline is pushed out of the hole, and completing pipeline installation.
In summary, according to the guided push pipe installation construction method, reaming can be formed at one time, and the pipeline can be directly pulled back for installation, so that the working procedures are saved.
Optionally, the diameter of the reaming of the installation pipeline is 1.2-1.5 times of that of the installation pipeline by adopting the horizontal directional drilling process, and the diameter of the reaming earth is only 50-100mm larger than that of the installation pipeline by adopting the method, so that the amount of the reaming earth is greatly reduced, the consumption of slurry is saved, and the surface subsidence can be well controlled.
Optionally, the pipeline that this application still can pull back when the pipeline installation has certain supporting role to the pore wall of pore-forming to form mud drag reduction cover, reduce the installation resistance. The pipe pushing machine provides weight on bit and pipe installation thrust for pipe installation, and the back-dragging capacity of the horizontal directional drilling machine is enhanced.
Optionally, the guide hole can be used as a mud slag discharging channel, so that the overflow area is smaller than that of the conventional reaming. Thus the same mud flow rate and velocity are faster and the capacity of removing drill cuttings is stronger. The smaller slurry pump can meet the construction requirement, and has lower energy consumption requirement.
Optionally, the method can also enable the pore-forming profile to be regular and standard, the pore-forming size is controllable, and the problem of overlarge height difference between the upper part and the lower part of the pore-forming caused by repeated reaming and pore-cleaning of the horizontal directional drill can be effectively avoided.
In another possible embodiment of the present application, the following construction scheme is provided:
digging a working pit at a soil outlet end, manufacturing a ground anchor of a pipe pushing machine and installing the pipe pushing machine;
the horizontal directional drilling machine performs guide hole construction according to the design track, so that the reaming track is consistent with the design track;
and (5) pushing the pipe for reaming. The drilling machine is sequentially connected with the guiding reamer, the conical reamer and the transfer case through the drill rod, the transfer case is connected with the drag reduction sleeve, the drag reduction sleeve is welded with the steel pipe to be installed, the steel pipe to be installed penetrates through the pipe pushing machine at the soil outlet end, and the steel pipe to be installed extends outwards through the roller frame.
According to the technical scheme, a slurry circulation system is required to be arranged on one side of the horizontal directional drilling machine, lubricating slurry sequentially extends to the guiding reamer (6), the conical reamer (7), the transfer case (8) and the drag reduction sleeve (9) through the hollow drill rod and is sprayed into an annular space between the shell and the hole wall, so that a slurry lubrication sleeve is formed, and friction resistance of the steel pipe is reduced.
According to the technical scheme, the pipe pushing machine pushes the steel pipe to transmit thrust to the conical reamer, and meanwhile, the horizontal directional drilling machine at the earth-entering end enables the conical reamer to rotate through the drill rod and maintain a certain tensile force. The pilot reamer is used to pre-ream and to direct the reaming path of the tip reamer.
According to the technical scheme, the diameter of the guiding reamer is smaller than that of the conical reamer, wherein the conical reamer is stepped and is divided into a cutting type and a tooth wheel type according to geological conditions. Both the pilot reamer and the cone reamer are provided with cutting jets, and the mud washes away the drill through the nozzles of the cutting bits and cools the pilot reamer and the cone reamer.
According to the technical scheme, the pipe pushing machine and the horizontal directional drilling machine are matched for construction, so that the reaming efficiency is improved. I.e. 2 strokes of the push tube machine are matched with 1 stroke of the horizontal directional drilling machine.
In another possible embodiment of the present application, the following construction scheme is provided:
the method can realize direct pipeline installation for large-caliber directional drilling construction. The method is characterized in that a horizontal directional drilling machine and a pipe pushing machine are combined, a multiple hole expanding and washing process is eliminated, the hole diameter of the pipeline is dragged back and reamed in place once, and the metal pipeline is directly installed. Belonging to the non-excavation technical field. The construction method includes but is not limited to the following equipment: a horizontal directional drilling machine for realizing pilot hole drilling and providing torque for the conical reamer, the conical reamer for cutting the stratum to realize reaming, and a pipe pushing machine for providing most of drilling pressure for the conical reamer and thrust for pipe installation. In addition to these, the system also includes necessary accessories for guiding reamer, transfer case, mud system, drag reducing system, etc. The construction method comprises the following steps: (1) preparation for construction; (2) construction of a guide hole; (3) installing drilling tools such as a conical reamer, a transfer case and the like; (4) connecting the drilling tool with the installed pipeline; (5) cutting, reaming and pushing pipe installation; (6) If the pipeline is divided into a plurality of sections to be installed, the pipeline needs to be connected with the previous section of pipeline; (7) the pipeline installation is completed; (8) site restoration.
The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is merely illustrative of the possible embodiments of the present application and is not intended to limit the present application, but any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the present application are intended to be included within the scope of the present application.
Claims (10)
1. A guided push tube installation construction method, characterized in that it is applied to a push tube installation system, the push tube installation system includes a horizontal directional drilling machine (1), a directional drilling machine control room (2), a directional drilling machine power station (3), a mud subsystem (4), a drill rod (5), a guiding reamer (6), a conical reamer (7), a transfer case (8), a drag reduction sleeve (9), a pipeline (10), a push tube machine control room (11), a push tube machine power station (12), a ground anchor (13) and a push tube machine (14), the method includes:
controlling the horizontal directional drilling machine (1) to perform guide hole construction according to a design curve;
when the guide hole is penetrated, the drill rod (5) and the guide reamer (6) are connected;
-coupling the pilot reamer (6) and the under-reamer (7);
-coupling the under-reamer (7) and the transfer case (8);
coupling the transfer case (8) with the pipeline (10) through the drag reduction sleeve (9), wherein the drag reduction sleeve (9) is used for sleeving the periphery of the pipeline (10) and reducing friction resistance through slurry;
-passing the pipe (10) through the push tube machine (14) at the unearthed end;
controlling the pipe pushing machine (14) to apply thrust to the pipeline (10);
controlling the horizontal directional drilling machine (1) to provide cutting torque to the conical reamer (7) through the drill rod (5);
controlling the rotary cutting of the material in the formation by the conical reamer (7);
primary reaming is achieved by the pilot reamer (6) and the pilot reamer (7) is reamed according to the track of the pilot hole;
when the under-reamer (7) finishes under-reaming on the track of the pilot hole, the pipe (10) is installed in a tubular space where the under-reamer (7) is expanded.
2. The construction method according to claim 1, characterized in that the construction method further comprises:
obtaining a unit travel M of the horizontal directional drilling machine (1), wherein M is a positive number;
obtaining a unit travel N of the tube pushing machine (14), wherein N is a positive number;
according to the unit travel M of the horizontal directional drilling machine (1) and the unit travel N of the pipe pushing machine (14), the travel of the horizontal directional drilling machine (1) is matched with the travel of the pipe pushing machine (14).
3. Construction method according to claim 2, characterized in that the unit travel M according to the horizontal directional drilling machine (1) and the unit travel N of the tube pushing machine (14) are such that the travel of the horizontal directional drilling machine (1) and the travel of the tube pushing machine (14) match, comprising:
obtaining a target time length T required by a unit travel N of the pipe pushing machine (14);
and adjusting the travel of the horizontal directional drilling machine (1) in the target duration T to N.
4. A construction method according to claim 3, wherein said installing the pipe (10) in the tubular space expanded by the under-reamer (7) when the under-reamer (7) finishes the reaming on the locus of the pilot hole comprises:
when the under-reamer (7) advances by a unit stroke N under the action of the push-tube machine (14), the horizontal directional drilling machine (1) stops applying a back drag force and a cutting torque to the pilot reamer (6) and the under-reamer (7);
controlling the pipe clamping device of the pipe pushing machine (14) to release the pipeline (10).
5. A construction method according to claim 2, wherein said primary reaming is effected by said pilot reamer (6) and said pilot reamer (7) is guided to ream in accordance with the trajectory of said pilot hole, comprising:
-effecting primary reaming by means of said pilot reamer (6);
flushing away cuttings through a nozzle of a cutting bit of the pilot reamer (6);
-guiding the under-reamer (7) by the guiding reamer (6) to ream in accordance with the trajectory of the guiding hole;
cuttings are flushed away by the nozzle of the cutting bit of the under-reamer (7).
6. The construction method according to claim 5, characterized in that the construction method further comprises:
determining a geological condition of the installation of the pipeline (10), wherein the geological condition is used for indicating the pore-forming difficulty level of a stratum;
based on the geological conditions, the shape of the cutting bit of the under-reamer (7) is determined, the shape of the cutting bit including cutting and tooth wheel type.
7. Construction method according to claim 1, characterized in that the external form of the under-reamer (7) is of stepped shape.
8. Construction method according to claim 1, characterized in that flushing fluid enters the cutting site from the top end of the drill rod (5) and flows out of the interspace between the drill rod (5) and the pilot hole.
9. The construction method according to claim 1, wherein the push tube machine (14) provides the first weight-on-bit for the under-reamer (7);
the horizontal directional drilling machine (1) provides a second weight-on-bit for the conical reamer (7);
wherein the sum of the first weight-on-bit and the second weight-on-bit is the total weight-on-bit of the under-reamer (7).
10. Construction method according to claim 1, characterized in that said passing the pipe (10) through the pipe pusher (14) at the unearthed end comprises:
-placing the pipe (10) at the unearthed end into a pipe clamping device of the pipe pushing machine (14);
the pipe clamping device is connected with a main pushing cylinder of a pipe pushing machine (14);
a control circuit for communicating the tube pushing machine (14) with the tube pushing machine control chamber (11);
and an oil pipeline which is communicated between the pipe pushing machine (14) and the pipe pushing machine power station (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010868499.3A CN114109422B (en) | 2020-08-26 | 2020-08-26 | Guide type push pipe installation construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010868499.3A CN114109422B (en) | 2020-08-26 | 2020-08-26 | Guide type push pipe installation construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114109422A CN114109422A (en) | 2022-03-01 |
| CN114109422B true CN114109422B (en) | 2024-03-26 |
Family
ID=80374156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010868499.3A Active CN114109422B (en) | 2020-08-26 | 2020-08-26 | Guide type push pipe installation construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114109422B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201476B (en) * | 2023-03-10 | 2023-12-19 | 江苏谷登重型机械科技股份有限公司 | Synchronous construction device and method for multi-pipe pushing machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256428A (en) * | 2013-05-23 | 2013-08-21 | 国家电网公司 | Subsea pipeline positioning laying system and laying method thereof |
| CN110778323A (en) * | 2019-09-05 | 2020-02-11 | 青岛安装建设股份有限公司 | Construction method for pulling and passing buried pipeline |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6585062B2 (en) * | 2000-07-12 | 2003-07-01 | Vermeer Manufacturing Company | Steerable directional drilling reamer |
-
2020
- 2020-08-26 CN CN202010868499.3A patent/CN114109422B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256428A (en) * | 2013-05-23 | 2013-08-21 | 国家电网公司 | Subsea pipeline positioning laying system and laying method thereof |
| CN110778323A (en) * | 2019-09-05 | 2020-02-11 | 青岛安装建设股份有限公司 | Construction method for pulling and passing buried pipeline |
Non-Patent Citations (1)
| Title |
|---|
| 水平定向钻管道回拖受阻原因分析及措施;刘艳利;周号;;石油工程建设(第02期);62-65 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114109422A (en) | 2022-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104453712A (en) | While-drilling sleeve directional drilling device and method for soft coal seams of underground coal mine | |
| CN104912479B (en) | Method for drilling and completion of horizontal branched well for coal bed gas | |
| CN114109422B (en) | Guide type push pipe installation construction method | |
| CN110306934A (en) | The construction method and supporting drilling tool of double branch's top plate major diameter high position directional long boreholes | |
| CN112012751A (en) | Precise excavation method for gentle slope inclined shaft | |
| CN106837171B (en) | A kind of compact reservoir radial direction boring means external member | |
| CN107386283A (en) | A kind of anchor rod construction method suitable for mud burning into sand layer | |
| CN108301769B (en) | A kind of RW type horizontal well construction method and its drilling tool used | |
| CN110529047A (en) | A kind of self-advancing type pipe canopy drilling tool excavated for tunnel soft rock | |
| CN204326964U (en) | Soft coal bed in coal mine is with drill sleeve directional drilling device | |
| WO2008029000A1 (en) | Method for drilling rock | |
| CN102518398B (en) | Self-advancing type high-pressure jet sprayer for radial horizontal well drilling | |
| EA003010B1 (en) | Drilling and completion system for multilateral wells | |
| CN116291471A (en) | Construction method and tunneling equipment for large-diameter vertical shaft of upper soft and lower hard stratum | |
| CN217976089U (en) | Spiral casing jacking reaming device | |
| CN115653497A (en) | Laying construction process for horizontal directional drill crossing pipeline | |
| CN213297833U (en) | Drilling reamer capable of activating and closing ball throwing | |
| CN205713982U (en) | A kind of pile foundation construction drilling equipment being applicable to karst area | |
| CN106401502A (en) | Rotating hole-forming device with hydraulic expanding head and construction method | |
| CN207974768U (en) | Rotary excavating extruding expanding drilling head and rotary drilling rig including it | |
| CN220015180U (en) | Hard rock floor pipe curtain and pipe following construction device | |
| CN105201436A (en) | Method for feeding high-pressure hose by utilizing towing force of narrow-gap high-speed fluid | |
| JPH11223176A (en) | Hot rock body power generating method and device | |
| CN110374510A (en) | A kind of deep hole grouting cutting type reaming bit device and construction method | |
| CN204677113U (en) | reamer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |