公开(公告)号：US20170227434A1

公开(公告)日：2017-08-10

申请号：US15494199

申请日：2017-04-21

Applicant: BAKER HUGHES INCORPORATED

Inventor： MARCO RESPINI ,  GIUSEPPE DELLA SALA ,  CORINA SANDU ,  GAVIN MARK MEDINE ,  SAI REDDY PINAPPU

IPC: G01N13/00 ,  G01N21/41 ,  G01N33/28

Abstract: A method is provided for determining the solubility parameters for a process stream via the joint use of turbidimetric detection of asphaltenes flocculation, which is used to determine and detect the onset flocculation of asphaltenes of the process stream, and a refractive index to determine the process stream solubility parameters such as the solubility blending number and insolubility number.

公开(公告)号：US09726594B2

公开(公告)日：2017-08-08

申请号：US14546442

申请日：2014-11-18

Applicant: Baker Hughes Incorporated

Inventor： Vladimir Jovancicevic ,  Sunder Ramachandran ,  Carlos M. Menendez

IPC: G01N17/02

CPC classification number: G01N17/02

Abstract: An under-deposit corrosion (UDC) sensor includes a probe body with a curved concave probe surface that may have pre-deposited or in-situ formed thereon a material that accelerates the process of under deposit corrosion. The UDC sensor uses electrochemically-based localized monitoring techniques for assessing under-deposit pitting corrosion and the effectiveness of chemical treatment programs that mitigate under-deposit corrosion in well tubing, pipelines, vessels, and/or tanks.

公开(公告)号：US09725997B2

公开(公告)日：2017-08-08

申请号：US14826422

申请日：2015-08-14

Applicant: Baker Hughes Incorporated

Inventor： Tim W. Pinkston ,  Don C. Cox

IPC: E21B43/12 ,  E21B17/20

CPC classification number: E21B43/128 ,  E21B17/206

Abstract: An electrical submersible well pump assembly includes a pump driven by an electrical motor. A string of tubing connects to the well pump assembly and extends to an upper end of a well. A power cable installed in the tubing has three insulated electrical conductors embedded within an elastomeric jacket. A metal strip has turns wrapped helically around the jacket. The metal strip is compressed between the jacket and the tubing to cause the power cable to frictionally grip the tubing.

公开(公告)号：US20170219014A1

公开(公告)日：2017-08-03

申请号：US15407451

申请日：2017-01-17

Applicant: Baker Hughes Incorporated

Inventor： Scott C. Strattan ,  Yong Li

IPC: F16D3/06 ,  E21B17/046

CPC classification number: F16D3/06 ,  E21B17/046 ,  E21B43/128 ,  F16D1/10 ,  F16D1/101 ,  F16D2001/103 ,  F16D2250/0046 ,  F16D2300/10

Abstract: An electrical submersible pump assembly has modules, including a pump, a seal section and a motor. A rotatable first drive shaft in a first one of the modules has a splined end that mates with a splined end of a rotatable second drive shaft in a second one of the modules. An external set of splines is on mating ends of the first drive shaft and the second drive shaft. A coupling has an internal set of splines that mesh with the external set to rotationally couple the first and second drive shafts to each other. A polymer coating is selectively bonded on one of the sets and in sliding engagement with the other set. The coating is a solid polymer material having a lower coefficient of friction than steel alloys of the internal set and the external set.

公开(公告)号：US20170218433A1

公开(公告)日：2017-08-03

申请号：US15066421

申请日：2016-03-10

Applicant: BAKER HUGHES INCORPORATED

Inventor： Crystal Lee ,  Neil Sharma ,  Angela Reeves

IPC: C12Q1/68 ,  C12N1/38

CPC classification number: C12Q1/689 ,  C12N1/38 ,  C12Q1/6816 ,  C12Q2600/158

Abstract: At least one nucleic acid from a sulphate-reducing bacteria may be extracted from an oilfield fluid and may be amplified by a PCR amplification method in the presence of at least one primer to form an amplification product. The primer(s) may be or include a sequence essentially identical to SEQ ID NO:1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 7, SEQ ID NO: 8, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, and mixtures thereof. The amplification product may be hybridized with a probe specific for a fragment of an alpha subunit of an APS gene, and a presence of hybridization and a degree of hybridization may be detected.

公开(公告)号：US20170218252A1

公开(公告)日：2017-08-03

申请号：US15489601

申请日：2017-04-17

Applicant: BAKER HUGHES INCORPORATED

Inventor： D.V. Satyanarayana Gupta ,  Madhukar Chetty ,  Paul Carman

IPC: C09K8/24 ,  C09K8/88 ,  C09K8/68 ,  C09K8/12

CPC classification number: C09K8/24 ,  C08F2220/387 ,  C08F2220/606 ,  C09K8/12 ,  C09K8/68 ,  C09K8/882

Abstract: A method of servicing a well is disclosed. The method comprises mixing ingredients to form a well servicing fluid. The ingredients comprise (i) at least one surfactant chosen from alcohol ethoxylates, C4 to C12 primary alcohols and ethoxylated propoxylated alcohols, (ii) a zwitterionic polymer prepared by inverse emulsion polymerization of at least one monomer Ab comprising a betaine group and optionally one or more nonionic monomers Ba, and (iii) a saline based aqueous solution. The well servicing fluid is introduced into a hydrocarbon well.

公开(公告)号：US09719326B2

公开(公告)日：2017-08-01

申请号：US14078152

申请日：2013-11-12

Applicant: Baker Hughes Incorporated

Inventor： Brett C. Jones ,  Samuel C. Kucera ,  Michael L. Hair ,  Clifford H. Beall

IPC: E21B34/10

CPC classification number: E21B34/10

Abstract: Two control systems are provided to run in parallel between a surface location and the final controlled element, in this case a subsurface safety valve. The primary control circuit is controlling until a predetermined signal is given to the secondary control line which has the effect of actuating the valve a single time against the force of a bias or a shear pin that breaks. The movement of a shuttle in the housing due to the predetermined signal being provided in the secondary line puts the secondary control system in the position of running the tool. The primary system is valved off and cannot return into service. There are just two lines into and out of the housing to make the valve operate at the desired location. A test port is provided for surface testing.

公开(公告)号：US09719321B2

公开(公告)日：2017-08-01

申请号：US14019817

申请日：2013-09-06

Applicant: Baker Hughes Incorporated

Inventor： Christopher R. Hern ,  Daniel C. Ewing ,  Matthew J. Krueger ,  Jason P. Lacombe ,  Travis J. Ansohn ,  Steve M. Cortez ,  Michael Ramon

IPC: E21B33/16 ,  E21B23/08 ,  E21B34/14

CPC classification number: E21B33/16 ,  E21B23/08 ,  E21B34/14

Abstract: A subterranean tool can drop multiple objects to landing locations in a tubular string. The tool can keep at least one ball out of the fluid stream until ready for release. A dart or wiper plug can be kept in the fluid stream with an open bypass until axial mandrel movement allows release of the plug or dart. The tool is rotationally locked at a lower location for run in and then can rotationally lock at an upper location upon release of the dart or ball shifting relative rotation capabilities to different members. Axial movement that releases the dart also aligns a ball with a decreasing depth groove so that relative part rotation can cam the ball against a leaf spring detent and into the mandrel flow path.

公开(公告)号：US20170212263A1

公开(公告)日：2017-07-27

申请号：US15409200

申请日：2017-01-18

Applicant: BAKER HUGHES INCORPORATED

Inventor： ZHIJUAN ZHANG ,  DOUGLAS J. PATTERSON ,  ROGER R. STEINSIEK ,  WEI HAN

IPC: G01V1/50 ,  E21B47/00

CPC classification number: G01V1/50 ,  E21B47/0002 ,  E21B47/0005 ,  G01V1/34 ,  G01V1/40 ,  G01V1/52 ,  G01V2210/20 ,  G01V2210/6222 ,  G01V2210/74

Abstract: Systems, devices, and methods for evaluating an earth formation intersected by a borehole using signals produced at a plurality of borehole depths by an ultrasonic transducer in the borehole, the signals produced by the transducer including ringdown signals from the ultrasonic transducer and echo signals from a wall of the borehole from a plurality of azimuthal orientations. Methods include using peak amplitude values and arrival time values from the signals to construct a background modulation template corresponding to at least one depth; estimating, for each respective depth of the plurality of borehole depths, an azimuthally varying interference pattern predominantly resulting from a ringdown signal for each respective depth by mapping the modulation template to arrival time values corresponding to the respective depth; and subtracting, for each respective depth, the estimated varying interference pattern from the peak amplitude values corresponding to the respective depth to generate adjusted peak amplitudes.

公开(公告)号：US20170212262A1

公开(公告)日：2017-07-27

申请号：US15010730

申请日：2016-01-29

Applicant: BAKER HUGHES INCORPORATED

Inventor： Xiaochu YAO ,  Wei HAN ,  Quming ZHOU ,  Hao ZHANG

IPC: G01V1/50

CPC classification number: G01V1/50 ,  G01V1/40 ,  G01V2210/62 ,  G01V2210/6244

Abstract: Systems, devices, and methods for evaluating a volume of interest of an earth formation. Methods include estimating a parameter of interest of a volume of the formation using a value of a signal property (frequency amplitude) for a second harmonic mode signal component of a detected acoustic signal from the volume. Methods may include activating a transmitter to propagate an acoustic wave through the volume; producing the detected acoustic signal at a receiver responsive to the acoustic wave; and identifying the fundamental mode signal and the second harmonic mode signal associated with the detected acoustic signal. Methods include estimating an acoustic wave non-linearity parameter (β) for the volume using a relationship between the value of the signal property of the second harmonic mode signal component and a value of the signal property for a fundamental mode signal component of the detected acoustic signal.