Ll-P
`
`r_____
`I
`
`one SHELL PLAZA
`910 LOUISIANA
`HOUSTON. TEXAS
`77oo24995
`713.229.1234
`FAX 713.229.1522
`_
`__ __
`
`Tm
`
`AUSTIN
`BAKU
`DALLAS
`HOUSTON
`LONDON
`NEW YORK
`MOSCOW
`RIYADH
`WASHINGTON
`
`October 19, 2004
`06493 8 .0107
`
`By First Class Mail
`
`Commissioner for Trademarks
`
`P.O. Box 1451
`
`Alexandria, Virginia 22313-1451
`
`TTAB
`
`James R. Robinson
`713.229.2156
`FAX 713.229.7955
`james.robinson@bakerbotts.com
`
`Re:
`
`Scientific Drilling International, Inc. v. Gyrodata, Inc.
`Opposition Nos.: 91158224 and 91159448
`
`Dear Sir/Madame:
`
`In response to the Trademark Trial and Appeal Board Order dated October 12,
`2004, please find enclosed the relevant pleadings in the prior civil action between the two
`parties, namely, Scientific Drilling International, Inc. and Applied Technologies Associates, Inc.
`v. Gyrodata Corporation; C.A. No. H-97-3506 pending in the United States District Court for
`the Southern District of Texas, Houston Division. The underlying patent infringement claims
`have not yet been disposed of, but the trademark infringement counterclaim by Gyrodata, Inc.
`against Scientific Drilling International, Inc. has been dismissed. The pleadings relevant to the
`disposition of the trademark infringement claim are attached hereto, as follows:
`
`1.
`
`2.
`
`3.
`
`4.
`
`5.
`
`Gyrodata Corporation’s supplemental counterclaims;
`
`Scientific Drilling International, Inc.’s and Applied Technologies’ answer to
`Gyrodata Corporation’s supplemental counterclaims;
`
`Scientific Drilling International, Inc.’s motion for partial summary judgment on
`Gyrodata Corporation’s trademark claim;
`
`Conference Memorandum dismissing Gyrodata Corporation’s
`infringement counterclaim with prejudice; and
`
`trademark
`
`Order denying Scientific Drilling International, Inc.’s motion for partial summary
`judgment.
`
`Please date stamp and return the enclosed postcard in acknowledgement of
`
`
`
`B I I S
`'~ \
`‘Bah
`-.
`--
`27
`
`Res ectfullsubmitted
`
`/
`
`é'4»wvi
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`«
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`‘
`
`
`
`—
`
`2
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`—
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`—
`
`A
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`J311165 R- R051”-W1
`
`I||||||||||l||||||l||||||||||l||||l||||||||l|H|||
`
`1 0-21-2004
`U.S. Patent & TMOfcITM Mail Rcpt
`
`D1. #64
`
`_ __i._- 34%
`
`receipt.
`
`JRR:197
`
`HOUOI :867373.l
`
`

`
`
`
`BAKER BOTTS up
`
`Commissioner for Trademarks
`
`2
`
`October 19, 2004
`
`CERTIFICATE OF MAILING
`
`I hereby certify that this correspondence is being deposited with the United States
`Postal Service as first class mail in an envelope addressed to: Commissioner for Trademarks,
`P.O. Box 1451, Alexandria, Virginia 22313-1451 on the date shown below:
`
`J
`
`es R. Robinson
`
`October 19 2004
`Date
`
`CERTIFICATE OF SERVICE
`
`The undersigned hereby certifies that a true and accurate copy of the foregoing
`document was served the 19th day of October, 2004 by first class mail to the following:
`
`Gordon G. Waggett
`Gordon G. Waggett, P.C.
`3200 Southwest Freeway
`Phoenix Tower
`
`Suite 2355
`
`Houston, Texas 77027-7523
`
` es R. Robinson
`
`
`
`HOU01:867373.1
`
`

`
`
`
`
`
` @©)PY
`
`IN THE UNITED STATES DISTRICT COURT
`
`FOR THE SOUTHERN DISTRICT OF TEXAS
`
`HOUSTON DIVISION
`
`CIVIL ACTION NO. H-97-3506
`
`Honorable Lynn N. Hughes
`
`JURY TRIAL DEMANDED
`
`§ § § § § § § § § §
`
`§ § § § § § § § § § § §
`
`§
`
`SCIENTIFIC DRILLING INTERNATIONAL,
`INC. and APPLIED TECHNOLOGIES
`
`ASSOCIATES, INC.,
`
`Plaintiffs,
`
`VS.
`
`GYRODATA CORPORATION,
`
`Defendant.
`
`GYRODATA CORPORATION,
`
`Counterclaim Plaintiff,
`
`VS.
`
`SCIENTIFIC DRILLING INTERNATIONAL,
`INC., APPLIED TECHNOLOGIES
`
`ASSOCIATES, INC.
`
`Counterclaim Defendants.
`
`GYRODATA CORPORATION’S SUPPLEMENTAL COUNTERCLAIMS
`
`TO THE HONORABLE LYNN N. HUGHES:
`
`These are Gyrodata’s Supplemental Counterclaims. The numbered paragraphs and counts
`
`in the counterclaim, as well as the exhibits tendered with the counterclaim, flow continuously from
`
`the original counterclaim in this action.
`
`56.
`
`Jurisdiction. This Couxt’s jurisdiction arises from the fact that this is an action
`
`brought under the Trademark Laws of the United.States, 15 U.S.C. §§1051-1127. Jurisdiction is
`
`conferred by 15 U.S.C. §l 121 and 28 U.S.C. §§133l and I338(a).
`
`

`
`57.
`
`Venue. Venue is proper in this District pursuant to 28 U.S.C. §l391(b) and (c),
`
`inasmuch as the acts complained of herein have occurred throughout the United States and in this
`
`District, and Counterclaim Defendants are subject to personal jurisdiction in this judicial district.
`
`COUNT EIGHT: TRADEMARK INFRINGEMENT
`
`(Applicable to SDI and ATA)
`
`58.
`
`This is an action for trademark infringement and unfair competition under the
`
`Trademark Act of 1946, as amended (The Lanham Act, 15 U.S.C. § 1051, et seq.). This claim arises
`
`from the unauthorized use of the trademark DROP GYRO in the Houston, Texas, area and
`
`throughout the United States, and in the advertising and sale of services in connection with the
`
`controlled directional drilling of oil wells.
`
`59.
`
`Since at least as early as September 1997, Gyrodata has offered services in connection
`
`with the controlled directional drilling of oil wells using the trademark DROP GYRO.
`
`60.
`
`Some time during the year 2000, if not earlier, Counterclaim Defendants commenced
`
`using the trademark DROP GYRO for essentially the same services offered by Gyrodata.
`
`61.
`
`Gyrodata claims an interest in and right to exclusive use of the trademark DROP
`
`GYRO, and derivations ofthis trademark in the United States. Thus Gyrodata, pursuant to 15 U.S.C.
`
`§1125(a), complains of Counterclaim Defendants Scientific Drillinglntemational and/or Applied
`
`Technology Associates’ use of this trademark in their sale, offering for sale of services and/or uses
`
`in commerce of the words DROP GYRO, or any combination thereof. The false designation of
`
`origin and/or false and misleading descriptions of fact, are likely to cause confusion or deceive
`
`customers as to any affiliation, connection, or association Counterclaim Defendants have with
`
`

`
`Gyrodata. These false designations’ also include any perceived origin, sponsorship or approval by
`
`'
`
`A Gyrodata of Counterclaim Defendants’ goods, services or/or commercial activities.
`
`62.
`
`As a consequence of Counterclaim Defendants’ violation of 15 U.S.C. §1125(a)
`
`[Section 43(a) of The Lanham Act], Gyrodata is entitled to all of the relief set forth in 15 U.S.C.
`
`§ 1 1 17.
`
`63.
`
`Gyrodata seeks a permanent injunction against Counterclaim Defendants to enjoin
`
`them from any further violation of Section 43 (a) of the Lanham Act by acts as described herein and
`
`to be shown at trial.
`
`64.
`
`Gyrodata requests that Counterclaim Defendants be permanently enjoined from using
`
`the trademark DROP GYRO, or any confusingly similar word or phase in connection with
`
`advertising and promotion, on product labels, in correspondence, as part ofa web site, as a metatag,
`
`or in any other related commercial activity.
`
`65.
`
`Gyrodata seeks damages from Counterclaim Defendants to the full extent ofthe law
`
`for its losses due to Counterclaim Defendants’ violations of The Lanham Act.
`
`66.
`
`Gyrodata requests that the Court declare this case to be exceptional and award
`
`Gyrodata its attorney fees and costs in this action.
`
`67.
`
`Gyrodata seeks an award from the court for pre-judgment and post-j udgment interest '
`
`on all damages, atthe maximum rate allowed by law in the State of Texas.
`
`COUNT NINE: PATENT INFRINGEMENT
`
`(Applicable to SDI and ATA)
`
`68.
`
`This is an action for patent infringement ofUnited States Patent 5,821,414 “(the ‘4l4
`
`patent”), entitled “SURVEY APPARATUS AND METHODS FOR DIRECTIONAL WELLBORE
`
`3
`
`

`
`.
`.15,
`
`WIRELINE SURVEYING,” that issued on October 13, 1998, to Gary Uttecht, Eric Wright, James
`Brosnahan, Koen Noy, Han Wei and Greg Neubauer. Each inventor is or was at the time of
`invention, an employee ofGyrodataand contractually committed to assign ownership ofsuchpatent
`to Gyrodata. Gyrodata is the exclusive owner and holder ofthe ‘414 patent. A true and correct copy
`of the ‘414 patent is attached to this supplemental complaint as exhibit “N.” Counterclaim
`Defendants have infringed the ‘414 patent under 35 U.S.C. §27l by making, selling, offering for
`sale, or using the patented invention within the United States during the term of the ‘414 patent
`without authority to do so.
`
`In broad terms, the ‘414 patent claims apparatus and method for surveying wells
`69.
`comprising agyroscope having a spin axis aligned with the instrument axis, and having two sensitive
`
`axes orthogonally related to the spin axis and to each other. Attitude references ofthe wellbore with
`
`regard to the first determined location are then determined while the tool is continuously traversing
`through the wellbore.
`
`Upon information and belief, Counterclaim Defendants have willfully infringed the
`70.
`‘414 patent and will continue to do so unless enjoined by the Court. As a direct and proximate cause
`
`ofCounterclaim Defendants’ infringement ofthe ‘414 patent, Counterclaim Plaintiffhas suffered
`
`and will continue to suffer financial loss and damage. As a result of Counterclaim Defendants’
`
`willful infringement of the ‘414 patent, Counterclaim Defendants should be required to pay
`Counterclaim Plaintiff treble the amount of damages, as provided under 35 U.S.C. §284, and
`
`reasonable attorney fees as provided under 35 U.S.C. §283.
`
`

`
`COUNT TEN: PATENT INFRINGEMENT
`(Applicable to SDI and ATA)
`
`71.
`
`This is an action forpatent infringement ofUnited States Patent 5,806,195 (“the ‘ 195
`
`patent”),
`
`entitled “RATE GYRO WELLS SURVEY SYSTEM INCLUDING NULLING
`
`SYSTEM,” that issued on September 15, 1998, to Gary Uttecht, Eric Wright, James Brosnahan and
`
`Greg Neubauer. Each inventor is or was at the time of invention, an employee of Gyrodata and
`
`contractually committed to assign ownership ofsuch patent to Gyrodata. Gyrodata is the exclusive
`
`owner and holder ofthe ‘ 195 patent. A true and correct copy of the ‘ 195 patent is attached to this
`
`supplemental complaint as exhibit “O.” Counterclaim Defendants have infringed the ‘ 195 patent
`
`under 35 U.S.C. §27l by making, selling, offering to sell, or using the patented invention within the
`
`United States during the term ofthe ‘ 195 patent without authority to do so.
`
`72.
`
`Broadly, the ‘ 195 patent claims a method for well borehole survey involving a sonde
`
`supporting Xand Yaccelerometers, and Xand Ysensors on a rate gyro having a Z axis aligned with
`
`the sonde. On a slickline, or within a drill string, the sonde is used to measure four variables to
`
`enable well azimuth and inclination to be determined. Measuring depth enables a survey to be made.
`
`73.
`
`Upon information and belief, Counterclaim Defendants have willfully infiinged the
`
`‘ 195 patent and will continue to do so unless enjoined by the Court. As a direct and proximate cause
`
`of Counterclaim Defendants’ infringement ofthe ‘I95 patent, Counterclaim Plaintiffhas suffered
`
`and will continue to suffer financial loss and damage. As a result of Counterclaim Defendants’
`
`willful infringement of the ‘195 patent, Counterclaim Defendants should be required to pay
`
`Counterclaim Plaintiff treble the amount of damages, as provided under 35 U.S.C. §284, and
`
`reasonable attorney fees as provided under 35 U.S.C. §283.
`
`

`
`COUNT ELEVEN: PATENT INFRINGEMENT
`
`(Applicable to SDI and ATA)
`
`74.
`
`This is an action for patent infringement of United States Patent 5,657,547 filed
`
`December 19, 1994, and issued August 19, 1997 (“the ‘547 patent”), entitled “RATE GYRO
`
`WELLS SURVEY SYSTEM INCLUDING NULLING SYSTEM,” that issued on August 19, 1997,
`
`to Gary Uttecht, Eric Wright, James Brosnahan and Greg Neubauer. Each inventor is or was at the
`
`time of invention, an employee of Gyrodata and contractually committed to assign ownership of
`
`such patent to Gyrodata. Gyrodata is the exclusive owner and holder of the ‘547 patent. A true and
`
`correct copy of the ‘547 patent is attached to this supplemental complaint as exhibit “P.”
`
`Counterclaim Defendants have infringed the ‘547 patent under 35 U.S.C. §271 by making, selling,
`
`offering to sell, or using the patented invention within the United States during the term ofthe ‘547
`
`patent without authority to do so.
`
`75.
`
`Broadly, the ‘ 547 patent claims a method for well borehole survey involving a sonde
`
`supporting Xand Y accelerometers, and X and Y sensors on a rate gyro having a Z axis aligned with
`
`the sonde. On a slickline, or within a drill string, the sonde is used to measure four variables to
`
`enable well azimuth and inclination to be determined. Measuring depth enables a survey to be made.
`
`76.
`
`Upon information and belief, Counterclaim Defendants have willfully infiinged the
`
`‘ 547 patent and will continue to do so unless enjoined by the Court. As a direct and proximate cause
`
`of Counterclaim Defendants’ infringement of the ‘547 patent, Counterclaim Plaintiff has suffered
`
`and will continue to suffer financial loss and damage. As a result of Counterclaim Defendants’
`
`willful infringement of the ‘547 patent, Counterclaim Defendants should be required to pay
`
`

`
`Counterclaim Plaintiff treble the amount of damages, as provided under 35 U.S.C. §284, and
`
`reasonable attorney fees as provided under 35 U.S.C. §283.
`
`77.
`
`Gyrodata prays for the relief specified in each count referenced above, together with
`
`all and such other relief to which it may show itselfjustly and equitably entitled under law.
`
`
`
`‘J '1
`
`\
`
`
`
`Jcks C. Nickens (State Bar No. 15013800
`Thomas M. Fulkerson (State Bar No. 07513500)
`CLEMENTS, O’NElLL, PIERCE, NICKENS & WILSON, L.L.P.
`
`1000 Louisiana, Suite -1800
`
`Houston, Texas 77002-5009
`
`Telephone: (713) 654-7600
`Facsimile:
`(713) 654-7690
`
`and
`
`Alan H. Gordon (State Bar No. 08194500)
`Kristin K. Tassin (State Bar No. 00 75 7539)
`ALAN H. GORDON & ASSOCIATES, P.C.
`
`2925 Briarpark Drive, 9th Floor
`Houston, Texas 77042
`'
`Telephone: (713) 789-6200 [Please Note New Number]
`Facsimile:
`(713) 789-6203 [Please Note New Number]
`
`ATTORNEYS FOR DEFENDANT AND COUNTERCLAIM
`
`PLAINTIFF GYRODATA CORPORATION
`
`.0“.
`
`V. ‘.‘*
`
`

`
`CERTIFICATE OF SERVICE
`
`I certify that a true and correct copy ofthe above and foregoing instrument was served upon
`each ofthe parties listed below by certified mail, return receipt requested, and/or by facsimile and/or ‘
`by hand delivery on June 29, 2001:
`
`Mr. Claude E. Cooke, Jr.
`
`Baker & Botts, L.L.P.
`One Shell Plaza
`
`910 Louisiana Street
`
`Houston, Texas 77002
`
`Mr. William B. Federman
`
`Day Edwards Federman Propester & Christensen, P.C.
`Oklahoma City Tower
`210 Park Avenue, Suite 2900
`
`Oklahoma City, Oklahoma 73102
` M. Fulkerson
`
`

`
`

`
`United States Patent: 5,821,414
`
`http://l64.l95.l00.l l/netacgi/rt
`
`~....S=IN/"Noy,+l(oen"&RS=lN/"Noy,+Koen"
`
`Us PATENT 8: TRADEMARK OFFICE
`PATENT FULL TEXT AND IMAGE DATABASE
`
`
`
`( 3 of 3 )
`
`
`United States Patent
`
`.
`
`Noy , et al.
`
`5,821,414
`
`October 13, 1998
`
`Survey apparatus and methods for directional wellbore wireline surveying
`
`Abstract
`
`A wellbore survey method and apparatus which includes a gyroscope, wherein-the gyroscope has a spin
`axis, aligned with the instrument axis, and further having two sensitive axis orthogonally related to the
`spin axis and to each other. In addition, the wellbore survey-apparatus contains a drive means,
`functionally connected with the gyroscope, to rotate the gyro about the instrument axis. The wellbore
`survey apparatus also contains a set of accelerometers, wherein the sensitive axis are aligned
`_
`orthogonally to each other, and said drive means is functionally connected to the accelerometers to rotate
`the accelerometers about the instrument axis. Sensors determine the azimuthal direction of inclination of '
`the wellbore at a first location therein and while traversing from said first location. Attitude references of
`the wellbore with regard to said first location are determined while the tool is continuously traversing
`through the wellbore.
`
`
`Inventors: Noy; Koen (1628 Westbelt N., Houston, TX 77043); Wright; Eric (1628 Westbelt N.,
`Houston, TX 77043); Uttecht; Gary (1628 Westbelt N., Houston, TX 77043);
`Brosnahan; James (1628 Westbelt N., Houston, TX 77043); Wei; Han ( 1628 Westbelt
`N., Houston, TX 77043); Neubauer; Greg (1628 Westbelt N., Houston, TX 77043)
`
`Appl. No.: 797785
`
`Filed:
`
`February 7, 1997
`
`Current U.S. Class:
`
`v
`
`Intern’! Class:
`
`Field of Search:
`
`H
`
`73/152.54; 33/304
`
`E2lB 047/00; E2lB 047/022
`
`33/304,313,324 73/152.54
`
`
`
`References Cited |Referenced By]
`
`U.S. Patent Documents
`
`I of I7
`
`6/27/Ol
`
`l0:52 AM
`1, ._,s.,.
`
`,&I
`
`

`
`United States:Patent: 5,821,414
`
`http:// l 64. 1 95. 1 00.1 l/netacgi/n‘ ’
`
`...S=lN/"Noy,+Koen"&RS=IN/"Noy,+Koen"
`
`3753296
`
`4197654
`
`4199869
`
`4238889
`
`4265028
`
`4293046
`
`4297790
`
`4433491
`
`4454756
`
`4459760
`
`4542647
`
`4812977
`
`4987684
`
`5657547
`
`Aug., 1973
`
`Apr., 1980
`
`Apr., 1980
`
`Dec., 1980
`
`May., 1981
`
`Oct., 1981
`
`Nov., 1981
`
`Feb., 1984
`
`Jun., 1984
`
`Jul., -1984
`
`Sep., 1985
`
`Mar., 1989
`
`Jan., 1991
`
`Aug., 1997
`
`VanSteenwyk.
`
`VanSteenwyk et al..
`
`VanSteenwyk.
`
`Barriac.
`
`VanSteenwyk.
`
`VanSteenwyk.
`
`VanSteenwyk et al..
`
`Ott et al..
`
`Sharp et al.
`
`Watson et al..
`
`Molnar
`
`Hulsing
`
`Andreas et al..
`
`Uttecht et al.
`
`73/152.
`
`73/ 152.
`
`364/422.
`
`33/304.
`
`Primary Examiner: Brock; Michael
`Assistant Examiner: Politzer; Jay L.
`Attorney, Agent or Firm: Gunn & Associates, P.C.
`
`
`
`Claims
`
`What is claimed is:
`
`1. A method of conducting an oil well survey along a well borehole comprising the steps of:
`
`(a) moving an elongate sensor housing having an axis coincident therewith along a well borehole
`between first and second selected positions to form a survey between said first and second positions,
`wherein said first position is located within a non vertical section of said well borehole;
`
`(b) positioning a rate gyro in said housing wherein said rate gyro forms rate gyro output signals
`indicative of measured angular rate between said first and second positions and taking a set of
`measurements to initialize the gyro at the first position;
`
`(c) positioning in said housing first and second accelerometers at a right angle therebetween wherein
`said accelerometers define a transverse plane to the axis of said housing; and forming accelerometer
`output signals from said first and second accelerometers indicative of values sensed thereby at said first
`position and during movement between first and second positions in said well borehole;
`
`(d) forming stored gyro data representative of said rate gyro output signals, relative to a reference
`azimuth measured by said rate gyro with said sensor housing stationary at said first position, during
`movement between said first and second positions along the well borehole;
`
`(e) forming stored accelerometer data representative of said accelerometer output signals, relative to a
`reference inclination measured by said accelerometers with said housing stationary at said first position,
`during movement between said first and second positions alone the well borehole; and
`
`(f) converting said stored rate gyro data and said stored accelerometer data into a plot of well borehole
`azimuth between said first and second positions.
`
`2 of 17
`
`‘V\L
`6/27/01 1052 AM
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`,..:
`
`

`
`United StatE§\?atent: 5,821,414
`
`1
`
`_
`
`.
`
`..
`
`http://l64.l95.l00.l l/netacgi/ii‘ ' -...S=lN/"Noy,+Koen"&RS=lN/"Noy,+Koen"
`
`2. The method of claim 1 wherein said housing is an elongate cylindrical housing and including the step
`of moving said housing along the well borehole suspended from a cable and moving said housing‘-in a.
`continuous motion between said first and second positions.
`
`3. The method of claim 1 wherein said rate gyro is initially oriented to define an axis thereof coincident_
`with the axis of said housing, and forming resolved X and Y components of movement of said rate gyro
`in said housing while moving between said first and second positions.
`—
`
`4. The method of claim 1 wherein said housing is suspended on an elongate wireline in said well
`borehole and said wireline is moved upwardly or downwardly to move said housing in said well
`borehole and movement of said housing is measured as a function of time to depth.
`
`5. The method of claim 1 wherein said rate gyro is provided with first and second rate sensors at right
`angles for forming said rate gyro signals in X and Y axes with respect to the Z axis of the rate gyro, and
`further including the step of positioning the rate gyro so that the Z axis thereof coincides with said
`housing, and subsequently calculating azimuth from said rate gyro.
`
`6. The method of claim 1 wherein said first and second positions are in a well borehole inclined by a
`specified angle from the vertical.
`
`7. A method of conducting an oil well survey along a well borehole comprising the steps of:
`
`(a) moving an elongate sensor housing having an axis coincident therewith along a well borehole
`between first and second selected positions to form a survey between said first andsecond positions,
`wherein said first position is located within a non vertical section of said well borehole;
`
`(b) positioning a rate gyro in said housing wherein said rate gyro forms output signals to initialize the
`gyro and also indicative of measured angular rate at said first position and between said first and second
`positions;
`
`(c) positioning in said housing first and second accelerometers at a right angle therebetween wherein
`said accelerometers define a transverse plane to the axis of said housing, and forming outputs from said
`first and second accelerometers indicative of values sensed thereby at said first position and during
`movement between first and second positions in said well borehole and relative to a reference inclination
`at said first position;
`
`((1) converting, data representative of the outputs of said rate gyro and said accelerometers during
`movement between said first and second positions along the well borehole to determine well borehole
`inclination; and
`
`(e) recording a plot of well borehole inclination to form a plot between said first and second positions.
`
`8. The method of claim 7 wherein said housing is suspended on an elongate wireline in said well
`borehole and said wireline is moved upwardly or downwardly to move said housing in said well
`borehole and movement of said housing is measured as a function of time and depth to form a record
`thereof.
`
`9. The method of claim 7 wherein said first and second positions are in a well borehole inclined by a _
`specified angle from the vertical.
`
`10. The method of claim 7 wherein said housing is an elongate cylindrical housing and including the
`step of moving said housing along the well borehole suspended from a cable and moving said housing in
`a continuous motion between said first and second positions to obtain azimuth and depth between said
`fist and second positions.
`
`1 l. The method of claim 10 wherein said rate gyro is initially oriented to define an axis thereof
`coincident with the axis of said housing, and forming resolved X and Y components of movement of
`
`3 of l7
`
`6/27/0l l0:52 AM
`
`

`
`
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`I
`United States. Patent: 5,821,414
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`http://1 64.1 95. 100.1 1/netacgi/r
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`A -...S=IN/"Noy,+Koen"&RS=IN/"Noy,+Koen"
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`said rate gyro in said housing while moving between said first and second positions.
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`12. The method of claim 7 wherein said rate gyro is provided with first and second rate sensors at right ’
`angles for forming gyro rate output signals in X and Y axes with respect to the Z axis of the rate gyro,
`and further including the step of restoring the rate gyro so that the Z axis thereof coincides with said
`housing, and subsequently calculating well borehole azimuth with respect to a reference azimuth
`measured with said rate gyro and with said sensor housing stationary at said first position.
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`13. The method of claim 12 wherein said first and second positions are in a well borehole inclined by a
`specified angle from the vertical.
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`14. A method of conducting an oil well survey along a well borehole comprising the steps of:
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`(a) moving an elongate sensor housing having an axis coincident therewith along a well borehole
`between first and second selected positions to form a survey between said first and second positions,
`wherein inclination of said well borehole at said first position is greater than about 15 degrees;
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`(b) positioning a rate gyro in said housing wherein said rate gyro forms output signals to initialize the -
`gyro and also indicative of measured angular rate;
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`(c) positioning in said housing first and second accelerometers at aright angle therebetween wherein
`said accelerometers define a transverse plane to the axis of said housing; and forming outputs from said
`first and second accelerometers indicative of values sensed thereby during movement between first and
`second positions in said well borehole with respect to a reference inclination at said first position;
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`(d) forming stored data representative of the outputs of said rate gyro with respect to a reference azimuth
`at said first position and said accelerometers during movement between said first and second positions
`along the well borehole to determine well borehole azimuth and inclination; and
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`(e) recording a plot of well borehole azimuth and inclination between said first and second positions.
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`15. The method of claim 14 wherein said housing is an elongate cylindrical housing and including the
`step of moving said housing along the well borehole suspended from a cable and moving said housing in
`a continuous motion between said first and second positions.
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`16. The method of claim 14 wherein said rate gyro is provided. with first and second rate sensors at right
`angles for forming gyro rate output signals in X and Y axes with respect to the Z axis of the rate gyro,
`and further including the step of positioning the rate gyro so that the Z axis thereof coincides with said
`housing to direct said housing axis along said borehole, and determining azimuth from said rate gyro.
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`17. The method of claim 14 wherein said first and second positions-are in a well borehole inclined by a
`specified angle from the vertical.
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`18. The method of claim 14 wherein said rate gyro is initially oriented to define an axis thereof
`coincident with the axis of said housing, and forming resolved X and Y components of movement of
`said rate gyro in said housing while moving between said first and second positions.
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`19. The method of claim 18 wherein said housing is suspended on an elongate wireline in said well
`borehole and said wireline is moved upwardly or downwardly to move said housing in said well
`borehole and movement of said housing is measured as a function of time to form a record thereof.
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`20. A method of conducting an oil well survey along a well borehole comprising the steps of:
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`(a) moving an elongate sensor housing along a well borehole between first and second selected positions
`to form a survey between said first and second positions, wherein inclination of said well borehole-at
`said first position is greater than about 15 degrees;
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`United State's;Patent: 5,821,414
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`http://164. 195. 100. l 1/netacgi/ii" I
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`...S=lN/"Noy,+Koen"&RS=lN/"Noy,+Koen"
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`(b) positioning a rate gyro in said housing wherein said rate gyro forms orthogonal output signals to
`initialize the gyro and also indicative of measured angular rate;
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`(c)_ positioning in said housing first and second accelerometers at a right angle therebetween wherein
`said accelerometers define a transverse plane to the axis of said housing;
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`((1) measuring a reference azimuth and a reference inclination at said first position and computing and
`storing data representative of the outputs of said rate gyro relative to said reference azimuth and said
`accelerometers relative to said reference inclination during continuous, unstopped movement between
`said first and second positions along the well borehole; and
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`(e) converting the stored data into a plot of well borehole azimuth between said first and second
`positions.
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`21. The method of claim 20 wherein said housing is an elongate cylindrical housing and including the
`step of moving said housing along the well borehole in a continuous motion between said first and
`second positions.
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`22. The method of claim 21 including the step of measuring housing rotation during movement, and
`projecting the measured housing rotation to a reference plane to fix in relative space one of said
`accelerometer outputs.
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`23. The method of claim 22 including the step of creating a Z axis output from accelerometer data.
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`24. The method of claim 22 including the step of setting the reference plane to obtain a reference
`horizontal plane relative to gravity.
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`25. The method of claim 22 including the step of projecting the gyro output data intoa horizontal plane
`for measuring inclination from the gyro data.
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`v
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`26. An apparatus comprising:
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`' (a) an elongate housing having an axis along the length thereof;
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`(b) a motor in said housing for rotating a shaft extending along said housing;-
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`(c) a rate gyro supported by saidhousing and axially aligned within said housing and connected to said
`shaft for rotation thereby;
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`(d) a pair of accelerometers defining an X and Y plane wherein said pair are at right angles, and are
`rotated by said motor shaft;
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`(e) a signal processor connected to said rate gyro and said pair of accelerometers to process signals
`therefrom from a survey of a well borehole, wherein said signal processor
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`(i) forms a ratio of X and Y components of outputs of said accelerometers projected onto said X and Y
`planes, and
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`(ii) combines X and Y outputs from said rate gyro with a function of said ratio thereby correcting said
`ratio for any non gravity acceleration effects and yielding a relative borehole inclination; and
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`(t) a control for said signal processor to initialize operation so that said processor forms a survey
`between first and second locations in said well borehole, wherein inclination of said well borehole at
`said first location is greater than about 15 degrees.
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`27. The apparatus of claim 26 wherein said control and said signal processor form a survey of the well
`borehole beginning from a specified angle with respect to the vertical and relating said relative borehole
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`United StategPatent: 5 ,82 1 ,4 14
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`http:// l 64. 195. 100.1 l/netacgi/ii" '*—...S=IN/"Noy,+Koen"&RS=lN/"Noy,+Koen"
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`inclination thereto.
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`28. The apparatus of claim 26 wherein said control responds to an angular change with respect to
`vertical in excess of a selected angle.
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`29. The apparatus of claim 26 wherein said gyro is rotated about said housing axis and said pair of
`accelerometers defines a plane at a non normal angle with respect to said axis.
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`30. The apparatus of claim 29 wherein said motor shaft is coincident with said housing axis at said rate
`gyro to mount said gyro for axial rotation, and said shaft is angled to said pair to define a non normal
`plane for said pair with respect to said housing axis.
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`31. A method of conducting an oil well survey along a well borehole comprising the steps of:
`
`(a) moving an elongate sensor housing along a well borehole between first and second selected positions
`to form a survey between said first and second positions, wherein said first position is located within a
`non vertical section of said well borehole;
`
`(b) positioning a rate gyro in said housing wherein said rate gyro forms orthogonal output signals to
`initialize the gyro and also indicative of measured angular rate; _
`
`(c) positioning in said housing first and second accelerometers at a right angle therebetwecn wherein
`said accelerometers define a transverse plane to the axis of said housing;
`-
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`(d) measuring gravity induced signals from said first and second accelerometers at the first position and
`- determining therefrom a vector component describingthe first position wherein the component includes
`well borehole inclination;
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`(e) measuring at the first position a vector component describing housing azimuth;
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`(f) moving the housing along the well borehole from the first to a second position in the well borehole;
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`(g) storing data representing the inclination and azimuth between first and second positions;
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`(h) measuring a reference azimuth and a reference inclination at said first position and computing and
`storing data representative of the output of said rate gyro relative to azimuth;
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`(i) storing data representative of said accelerometers relative to inclination; and
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`(i) converting the stored data into a plot of well borehole azimuth between said first and second
`positions.
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`32. The method of claim 31 including the step of measuring linear travel of said housing along the well
`borehole between the first and second positions.
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`33. The method of claim 31 including the step of measuring housing rotation as indicated by signals
`from said accelerometers.
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`34. The method of claim 31 including the step of measuring data from said rate gyro indicative of
`relative rotation of said housing in space from said first position.
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`35. A method of conducting an oil well survey along a well borehole comprising the steps