# US 4,391,297 A · Mono-rail boom supported articulated service line > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,391,297 A - Document ID: US4391297A - Status: Granted - Kind: A - Application number: 06/208,767 - Filed: 1980-11-20 - Granted: 1983-07-05 - Earliest claimed: 1980-11-20 - Assignees: FMC Corporation - Inventors: Houston W. Knight - Web page: https://patentgrep.com/patent/US4391297A ## CPC - E21B 43/2607: {Surface equipment specially adapted for fracturing operations} - F16L 3/015: using articulated- or supple-guiding elements - Y10T 137/8807: Articulated or swinging flow conduit - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A mono-rail boom supported articulated pipe well service line for the transfer of pressurized fluids from service vehicles to petroleum wellheads for the treatment and stimulation of production oil wells. The boom is mounted on a truck, trailer, or other suitable mobile transport, and the articulated pipe line which comprises a plurality of pipe sections interconnected by swivel joints to provide the required rotational freedom and flexibility, is suspended from the boom by trolleys to facilitate extension and retraction of the pipe line either independently of movement of the boom, or concurrently therewith. ## Claims ### Claim 1 A mono-rail boom supported articulated well service line for use in well service operations to interconnect a supply of pressurized fluid to a wellhead, comprising: an extendible mono-rail boom having a plurality of boom sections with an inboard boom section mounted on a mobile transport means and with the other boom sections extendible outward from said inboard boom sections; means for supporting an outer portion of said boom when said boom is in an extended position; an articulated pipe well service line; a plurality of trolleys mounted for relative independent movement along the length of said boom with the movement of said trolleys independent of the extendible movement of said boom sections; means for connecting said service line to said trolleys for movement of said service line between a retracted position and an extended position when said boom is in an extended position; and means for disconnecting said service line from said trolleys for supporting said service line on the ground when said service line is at least partially extended. ### Claim 2 (depends on 1) An apparatus according to claim 1 wherein each of said trolleys includes power means for moving said trolley along the boom. ### Claim 3 (depends on 1) An apparatus according to claim 1 wherein the rigid pipe sections are connected together in end-to-end fashion by pipe swivel joints, thereby defining an accordion-like pipe conduit assembly. ### Claim 4 (depends on 1) An apparatus according to claim 1 including means to readily connect and disconnect the service line to and from a wellhead. ### Claim 5 (depends on 1) An apparatus according to claim 1 including means to readily connect and disconnect the service line to and from a supply of pressurized fluid. ### Claim 6 (depends on 1) An apparatus according to claim 1 including power means functionally engaging the boom for extending and retracting the boom from a stowed position. ### Claim 7 (depends on 1) An apparatus according to claim 1 including pivot means between the boom and the transport means to facilitate elevating and lowering said boom about a generally horizontal axis. ### Claim 8 (depends on 1) An apparatus according to claim 1 including pivot means between the boom and the transport means to facilitate pivotal movement of said boom with respect to said transport means about a generally vertical axis. ### Claim 9 (depends on 1) An apparatus according to claim 1 wherein the service line comprises a plurality of substantially equal length rigid pipe sections interconnected by pipe swivel joints in an end-to-end manner. ### Claim 10 A mono-rail boom supported articulated well service line for use in well service operations to interconnect a supply of pressurized fluid to a wellhead, comprising: an extendible mono-rail boom having a plurality of boom sections with an inboard boom section mounted on a mobile transport means and with the other boom sections extendable outward from said inboard boom section; means for supporting an outer portion of said boom when said boom is in an extended position; an articulated pipe well service line including a plurality of long pipe sections each substantially the same length as a corresponding one of the boom sections, and a plurality of shorter pipe sections pivotally interconnecting said long pipe sections; a plurality of trolleys mounted for movement along the length of said boom; means for connecting said service line to said trolleys for movement of said service line between a retracted position and an extended position when said boom is in an extended position; and means for disconnecting said service line from said trolleys for supporting said service line on the ground when said service line is at least partially extended. ### Claim 11 (depends on 10) An apparatus according to claim 10 wherein each of said trolleys includes power means for moving said trolley along the boom. ### Claim 12 (depends on 10) An apparatus according to claim 10 wherein the rigid pipe sections are connected together in end-to-end fashion by pipe swivel joints, thereby defining an accordion-like pipe conduit assembly. ### Claim 13 (depends on 10) An apparatus according to claim 10 including means to readily connect and disconnect the service line to and from a wellhead. ### Claim 14 (depends on 10) An apparatus according to claim 10 including means to readily connect and disconnect the service line to and from a supply of pressurized fluid. ### Claim 15 (depends on 10) An apparatus according to claim 10 including power means functionally engaging the boom for extending and retracting the boom from a stowed position. ### Claim 16 A mono-rail boom supported articulated well service line for use in well service operations to interconnect a supply of pressurized fluid to a wellhead, comprising: an extendible mono-rail boom having a plurality of boom sections with an inboard boom section mounted on a mobile transport means and with the other boom sections extendible outward from said inboard boom section; means selectively connected between ground and said boom for supporting an outer portion of said boom when said boom is in an extended position; an articulated pipe well service line; a plurality of trolleys mounted for movement along the length of said boom; means for connecting said service line to said trolleys for movement of said service line between a retracted position and an extended position when said boom is in an extended position; and means for disconnecting said service line from said trolleys for supporting said service line on the ground when said service line is at least partially extended. ### Claim 17 (depends on 16) An apparatus according to claim 16 including power means functionally engaging the boom for extending and retracting the boom from a stowed position. ### Claim 18 (depends on 16) An apparatus according to claim 16 including pivot means between the boom and the transport means to facilitate elevating and lowering said boom about a generally horizontal axis. ### Claim 19 (depends on 16) An apparatus according to claim 16 including pivot means between the boom and the transport means to facilitate pivotal movement of said boom with respect to said transport means about a generally vertical axis. ### Claim 20 (depends on 16) An apparatus according to claim 16 wherein the service line comprises a plurality of substantially equal length rigid pipe sections interconnected by pipe swivel joints in an end-to-end manner.