# US 2016/0258264 A1 · Well operations > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0258264 A1 - Document ID: US20160258264A1 - Status: Published application - Kind: A1 - Application number: 14/639,770 - Filed: 2015-03-05 - Published: 2016-09-08 - Earliest claimed: 2015-03-05 - Assignees: Schlumberger Technology Corporation - Applicants: Schlumberger Technology Corporation - Inventors: Timothy Lesko; Hariharan Ramakrishnan; Dmitriy Potapenko; Leland Ramsey - Web page: https://patentgrep.com/patent/US20160258264A1 ## CPC - E21B 43/26: by forming crevices or fractures - E21B 17/20: Flexible or articulated drilling pipes {, e.g. flexible or articulated rods, pipes or cables} - E21B 47/06: Measuring temperature or pressure - E21B 2200/06: Sleeve valves - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract The disclosure pertains to methods for completing a well comprising lowering a coiled-tubing in the well thus forming an annulus between the casing and the coiled-tubing, pumping down said annulus a treatment fluid above the fracturing pressure of the formation while also pumping fluid through the coiled tubing; monitoring in real-time the bottom hole pressure, increasing the pump rate through the coiled-tubing if an increase of bottom hole pressure is observed. ## Claims ### Claim 1 A method for treating a cased hole wellbore comprising: Lowering down a coiled tubing in the casing, thus forming an annulus between the casing and the coiled-tubing; Pumping a fracturing fluid through said annulus; Simultaneously pumping a fluid through the coiled tubing at a determined flow rate; Monitoring a bottom hole pressure; Wherein in case of an increase of bottomhole pressure corresponding to a potential screenout the flow rate through the coiled tubing is increased. ### Claim 2 (depends on 1) The method of claim 1, wherein the determined flow rate in the coiled tubing is from about 0.3 to about 0.8 bbl/min. ### Claim 3 (depends on 1) The method of claim 1, wherein flow rate through coiled tubing after increase is from about 3 to about 6 bbl/min. ### Claim 4 (depends on 1) The method of claim 1, wherein the increase of bottom hole pressure is at least of about 100 psi. ### Claim 5 (depends on 1) The method of claim 1 wherein the fluid pumped through coiled tubing is a neat fluid. ### Claim 6 (depends on 1) The method of claim 1 wherein the fluid pumped through coiled tubing is a Newtonian fluid. ### Claim 7 A method for preventing screenout in a wellbore being hydraulically fractured, the wellbore comprising a casing and a coiled tubing within the casing thus forming an annulus; the method comprising Monitoring bottomhole pressure in the wellbore; Pumping through the annulus a fluid above the fracturing pressure of the wellbore; Simultaneously pumping a fluid through the coiled tubing at a determined flow rate; Increasing the flow rate through the coiled tubing when an increase of bottomhole pressure is observed. ### Claim 8 (depends on 7) The method of claim 7, wherein the determined flow rate in the coiled tubing is from about 0.3 to about 0.8 bbl/min. ### Claim 9 (depends on 7) The method of claim 7, wherein flow rate through coiled tubing after increase is from about 3 to about 6 bbl/min. ### Claim 10 A method for completing at least a zone of a well using a pin-point fracturing technique comprising a cased hole formation having a coiled-tubing in the casing, the methods comprising monitoring a bottom hole pressure in real time and increasing the flow rate through the coiled-tubing when an increase of bottom hole pressure is observed. ### Claim 11 (depends on 10) The method of claim 10 wherein the casing comprises a plurality of reclosable sleeves at desired locations and the wellbore is cemented. ### Claim 12 (depends on 11) The method of claim 11 further comprising conveying an actuation device to one of the plurality of reclosable sleeves, actuating the device to open a sleeve and performing the fracturing operation. ### Claim 13 (depends on 12) The method of claim 12 further comprising closing the sleeve, conveying the actuation device to another of the plurality of reclosable sleeves, actuating the device to open another sleeve, and performing a further fracturing operation. ### Claim 14 (depends on 12) The method of claim 12, wherein the other sleeve is downhole from the one of the plurality of reclosable sleeves. ### Claim 15 (depends on 12) The method of claim 12, wherein the other sleeve is uphole from the one of the plurality of reclosable sleeves. ### Claim 16 A method for completing a well comprising: (i) Installing a tubing mounted with sliding sleeve in a drilled well; (ii) Lowering an actuation device attached to a coiled tubing, thus forming an annulus with the casing; (iii) Opening a first sleeve; (iv) Pumping a fracturing fluid down the annulus at or above the fracturing pressure of the formation while simultaneously pumping a neat fluid through the coiled tubing; (v) Closing the sleeve; (vi) Repeating steps (iii) to (v); Wherein the method comprises monitoring a bottom hole pressure in real time and increasing the flow rate through the coiled-tubing when screen out favorable pressure is observed. ### Claim 17 (depends on 16) The method of claim 16, wherein no sealing element is used. ### Claim 18 A method for completing a well, the well having a tubing mounted with sliding sleeves, comprising: Lowering a bottom hole assembly (BHA) using a conveyance mean thus forming an annulus between said conveyance mean and the tubing, the BHA comprising a shifting element; Opening a sliding sleeve with the shifting element; Pumping a fracturing fluid down the annulus, Simultaneously pumping a neat fluid through the coiled tubing, Calculating in real time the bottom hole pressure, Increasing the flow rate in the coiled tubing if an increase of bottom hole pressure is observed while fracturing; Further fracturing at least another zone; Wherein all steps are done without having the BHA coming out of the well.