BAKER HUGHES INCORPORATED AND
`BAKER HUGHES OILFIELD
`OPERATIONS, INC.
`Exhibit 1011
`BAKER HUGHES INCORPORATED AND
`BAKER HUGHES OILFIELD
`OPERATIONS, INC. v. PACKERS PLUS
`ENERGY SERVICES, INC.
`IPR2016-00598
`
`Page 1 of 98
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`2111412016
`hllps Jiippair uspto.govipairiPAlRPriniSeruIet
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`PTOISBI14 (07-07)
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`Attorney Docket Number
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`45023-72
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`Title of Invention
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`METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT
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`Edmonton
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`CA
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`11719 — 40 Avenue
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`DANIEL
`JON
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`Calgary
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`900, 407 — 2nd Street SW
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`METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT
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`23971
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`caldwellr@bennettjones_com
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`itle of Invention
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`METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT
`
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`2009-05-14
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`Electronic Patent Application Fee Transmittal
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`
`Title of Invention:
`
`METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT
`
`First Named Inventor/Applicant Name:
`
`JIM FEHR
`
`Attorney Docket Number:
`
`45023-72
`
`Utility under 35 USC111(a) Filing Fees
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`Description
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`Fee Code
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`Quantity
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`Sub-Total in
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` Sufi:-3:3; In
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`1090
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`Page 9 of 98
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`Electronic Acknowledgement Receipt
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`m—
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`Title of Invention:
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`METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT
`
`I
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`—
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`Payment information:
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`Charge any Additional Fees required under 37 C.F.R. Section 1.21 (Miscellaneous fees and charges)
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`CALDWELL,ROSEANN B.
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`A U.S. Patent Number Citation is required in the Information Disclosure Statement (IDS) form. You may remove the form to add the required
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`This Acknowledgement Receipt evidences receipt on the noted date by the USPTO ofthe indicated documents,
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`Page 12 of 98
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`Electronic Acknowledgement Receipt
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`m—
`
`Title of Invention:
`
`METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT
`
`I
`
`—
`
`Payment information:
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`yes—
`Submitted with Payment
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`Charge any Additional Fees required under 37 C.F.R. Section 1.21 (Miscellaneous fees and charges)
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`—Authorized User
`The Director of the USPTO is hereby authorized to charge indicated fees and credit any overpayment as follows:
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`CALDWELL,ROSEANN B.
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`Charge any Additional Fees required under 37 C.F.R. Section 1.16 (National application filing, search, and examination fees)
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`45023-72-Specn.pdf
`
`1520742
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`1585022
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`Information:
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`A U.S. Patent Number Citation is required in the Information Disclosure Statement (IDS) form. You may remove the form to add the required
`data in order to correct the Informational Message or if you chose not to, the image of the form will be processed and be made available
`within the Image File Wrapper (IFW) system. However, no data will be extracted from this form. Any additional data such as Foreign Patent
`Documents or Non Patent Literature will be manually reviewed and keyed into USPTO systems.
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`661850
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`b022fb6a62d5fa3b2e5c6d3632138180b4c
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`Page 14 of 98
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`
`This Acknowledgement Receipt evidences receipt on the noted date by the USPTO ofthe indicated documents,
`characterized by the applicant, and including page counts, where applicable. It serves as evidence of receipt similar to a
`Post Card, as described in MPEP 503.
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`New Applications Under 35 U.S.C. 111
`lfa new application is being filed and the application includes the necessary components for a filing date (see 37 CFR
`1.53(b)-(d) and MPEP 506), a Filing Receipt (37 CFR 1.54) will be issued in due course and the date shown on this
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`lfa timely submission to enter the national stage of an international application is compliant with the conditions of 35
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`national stage submission under 35 U.S.C. 371 will be issued in addition to the Filing Receipt, in due course.
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`lfa new international application is being filed and the international application includes the necessary components for
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`Page 15 of 98
`Page 15 of 98
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`

`
`Method and Apparatus for Wellbore Fluid Treatment
`
`Cross Reference to Related Applications
`
`This is a continuation application of US application s.n. 11/550,863 filed October 19,
`
`2006, which is a continuation of US application s.n. 11/ 104,467, filed April 13, 2005,
`
`now US Patent no. 7,134,505, issued November 14, 2006, which is a divisional of US
`
`application s.n. 10/299,004, filed November 19, 2002, now US Patent no. 6,907,936,
`
`issued June 21, 2005. The parent applications and the present application claim
`
`priority from US provisional application 60/331,491, filed November 19, 2001 and
`
`US provisional application 60/404,783, filed August 21, 2002.
`
`Field of the Invention
`
`The invention relates to a method and apparatus for Wellbore fluid treatment and, in
`
`particular, to a method and apparatus for selective communication to a Wellbore for
`
`fluid treatment.
`
`Background of the Invention
`
`An oil or gas well relies on inflow of petroleum products. When drilling an oil or gas
`
`well, an operator may decide to leave productive intervals uncased (open hole) to
`
`expose porosity and permit unrestricted Wellbore inflow of petroleum products.
`
`Alternately, the hole may be cased with a liner, which is then perforated to permit
`
`inflow through the openings created by perforating.
`
`When natural inflow from the well is not economical, the well may require Wellbore
`
`treatment termed stimulation. This is accomplished by pumping stimulation fluids
`
`such as fracturing fluids, acid, cleaning chemicals and/or proppant laden fluids to
`
`improve Wellbore inflow.
`
`In one previous method, the well is isolated in segments and each segment is
`
`individually treated so that concentrated and controlled fluid treatment can be
`
`provided along the Wellbore. Often, in this method a tubing string is used with
`
`inflatable element packers thereabout which provide for segment isolation. The
`
`packers, which are inflated with pressure using a bladder, are used to isolate segments
`
`of the well and the tubing is used to convey treatment fluids to the isolated segment.
`
`WSLegal\045023\00072\5293 S60v1
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`Page 16 of 98
`Page 16 of 98
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`

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`Such inflatable packers may be limited With respect to pressure capabilities as well as
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`durability under high pressure conditions. Generally, the packers are run for a
`
`wellbore treatment, but must be moved after each treatment if it is desired to isolate
`
`other segments of the well for treatment. This process can be expensive and time
`
`consuming. Furthermore, it may require stimulation pumping equipment to be at the
`
`well site for long periods of time or for multiple visits. This method can be very time
`
`consuming and costly.
`
`Other procedures for stimulation treatments use foam diverters, gelled diverters
`
`and/or limited entry procedures through tubulars to distribute fluids. Each of these
`
`may or may not be effective in distributing fluids to the desired segments in the
`
`wellbore.
`
`The tubing string, which conveys the treatment fluid, can include ports or openings
`
`for the fluid to pass therethrough into the borehole. Where more concentrated fluid
`
`treatment is desired in one position along the wellbore, a small number of larger ports
`are used. In another method, Where it is desired to distribute treatment fluids over a
`
`greater area, a perforated tubing string is used having a plurality of spaced apart
`
`perforations through its Wall. The perforations can be distributed along the length of
`
`the tube or only at selected segments. The open area of each perforation can be pre-
`
`selected to control the volume of fluid passing from the tube during use. When fluids
`
`are pumped into the liner, a pressure drop is created across the sized ports. The
`
`pressure drop causes approximate equal volumes of fluid to exit each port in order to
`
`distribute stimulation fluids to desired segments of the well. Where there are
`
`significant numbers of perforations, the fluid must be pumped at high rates to achieve
`
`a consistent distribution of treatment fluids along the wellbore.
`
`In many previous systems, it is necessary to run the tubing string into the bore hole
`
`with the ports or perforations already opened. This is especially true where a
`
`distributed application of treatment fluid is desired such that a plurality of ports or
`
`perforations must be open at the same time for passage therethrough of fluid. This
`
`need to run in a tube already including open perforations can hinder the running
`
`operation and limit usefulness of the tubing string.
`
`Summary of the Invention
`
`WSLegal\045023\00072\5293 S60v1
`
`Page 17 of 98
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`A method and apparatus has been invented which provides for selective
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`communication to a wellbore for fluid treatment. In one aspect of the invention the
`
`method and apparatus provide for staged injection of treatment fluids wherein fluid is
`
`injected into selected intervals of the wellbore, while other intervals are closed. In
`
`another aspect, the method and apparatus provide for the running in of a fluid
`
`treatment string, the fluid treatment string having ports substantially closed against the
`
`passage of fluid therethrough, but which are openable when desired to permit fluid
`
`flow into the wellbore. The apparatus and methods of the present invention can be
`
`used in Various borehole conditions including open holes, cased holes, vertical holes,
`
`horizontal holes, straight holes or deviated holes.
`
`In one embodiment, there is provided an apparatus for fluid treatment of a borehole,
`
`the apparatus comprising a tubing string having a long axis, a first port opened
`
`through the wall of the tubing string, a second port opened through the wall of the
`
`tubing string, the second port offset from the first port along the long axis of the
`
`‘ tubing string, a first packer operable to seal about the tubing string and mounted on
`
`the tubing string to act in a position offset from the first port along the long axis of the
`
`tubing string, a second packer operable to seal about the tubing string and mounted